Thursday, September 3, 2020
How to Write a Book Review Top 3 Stages to Creating a Masterpiece
Step by step instructions to Write a Book Review Top 3 Stages to Creating a Masterpiece The estimation of a book audit can never be belittled. At whatever point we need something in excess of a book theoretical, the audit design is the thing that we ought to be searching for. It spares perusers stores of time by giving the substance of the book in only a couple of pages. Perusers dont need to experience a few hundred pages of a book to check whether it is the thing that they are searching for. Perusing a bit of fiction is a certain something, yet when you have to experience several, state, academic books and you have to keep up the pace, you comprehend the estimation of book survey composing. However, lets get deeply. BOOK REPORT Book surveys are unique in relation to book synopses, where you need to list characters, summarize the occasions, etc. Book audit composing expects you to express your supposition in regards to the book and give basic editorial. In this sense, a book audit is identified with basic examination or basic paper. Readiness before Reading Readiness is the way to progress. You will consistently be at a favorable position in the event that you know the setting of the book and writer, for example at the point when it was composed, what propelled the essayist to take a shot at it, how he arranged for it, etc. You will have the option to comprehend the item better and comprehend the recorded conditions it was made in. In addition, it will show you have found a way to plan, set aside some effort to explore and took in the subtleties. That will give you an additional credit in your group. Perusing Note-Taking When you have assembled the foundation data, you are prepared to dive in. Plunk down with a piece of paper and a pencil and work out the significant stuff. Here is the thing that you should state in your book survey: Full Title Creator Name Last Name Distributing House Year of Publication Release and Number Incorporate your general impression into the prologue to express your feeling about the book you are remarking on. Talk about the reason for the book, its target group, and the general message. You ought to likewise present your primary idea (or proposal explanation) and keep up it all through the paper. Once youâ are finished with the early on part, continue to the body, where you ought to harp in more prominent detail on the thoughts communicated in the presentation, bolster them with proof, point qualities and shortcomings of the book, etc. End emphasizes and summarizes the considerations from the presentation and body passages. Post Writing Post composing alludes to editing and altering period of composing. When you are finished with the draft, feel free to set your book survey aside. It works best to set it aside for a couple of hours or days and afterward come back to peruse it by and by. The subsequent pass will assist you with spotting language and spelling errors will demonstrate if your book survey should be organized in an unexpected way, regardless of whether its persuading to the peruser, etc. When editing is done, you are prepared to distribute and additionally present your paper. BOOK REPORT versus BOOK REVIEW On the off chance that book report is the task you have to manage, however arent simply sure howâ and its group of expert scholars are glad to help. We can assist you with working on either a piece of your book audit (for example doing foundation examination), or help you with composing the whole paper. All papers are examined for literary theft, so you are ensured to get a completely true paper that has been exclusively composed to address your issues. is the administration you can trust! Submit a request and get your expertly composed book survey in time!
Tuesday, August 25, 2020
Corporate Social Responsibility in McDonalds Essay
Corporate Social Responsibility in McDonalds - Essay Example As indicated by the examination discoveries, McDonaldââ¬â¢s partnership is the main retail outlet in quick nourishments and cheeseburgers and has become a significant global in various pieces of the world. Today, the organization serves more than 68 million clients in more than 119 nations in various pieces of the world including Asia, Africa, Europe and Latin America.Corporate social obligation is characterized as the relationship that exists between business elements and the general public with a point of giving back and enabling individuals from the general public. Corporate social duty unites business associations, individuals from the general public and government organizations in an empowering domain. Corporate social obligation transcends the childish enthusiasm of individual entrepreneurs who are inspired by the longing to build benefits to the detriment of the general public. Corporate social duties connect with the general public during the time spent accomplishing the m issions and goals of the business association. This is accomplished through the commitment in various altruistic activities, preservation of the earth and updating the financial status of the individuals from the general public. The commitment of business in corporate social obligation programs is guided by various standards focused on made a leveled playing ground and guaranteeing that all individuals from the general public profit by the program. To begin with, corporate social obligation is constrained by the lawful consistence standard, which requires specialty units to comprehend and observe both neighborhood and worldwide laws which influence its activities in a specific industry. Following systems, for example, ecological guidelines and bargains marked by the nation of origin of the business shows a promise to the general public and the earth. Corporate social duty is additionally administered by the need to cling to the standard worldwide laws that oversee the activity of di fferent revenue driven organizations over the globe. Government understandings and presentations made are official on all organizations and this must be done dependent on through and through freedom and a comprehension of the area of activity.
Saturday, August 22, 2020
An Urban Renewal Project Research Paper Example | Topics and Well Written Essays - 2250 words
A Urban Renewal Project - Research Paper Example These means are taken so as to utilize exclusive property for improvement ventures, for example, urban reestablishment venture (Grogon and Proscio, 2001). The procedure of urban reestablishment is seen in both constructive and adverse ways by different individuals. To the vast majority of individuals, it goes about as an image of monetary turn of events and positive changes and for some it goes about as a methods for building up control. It is a decent method of reproducing networks that exist and cause them to appear to be better yet at the expense of annihilating certain areas. Be that as it may, with the progression of time a change has happened in the manner individuals consider urban restoration ventures which is considered currently to be progressively arranged toward speculation and remodel and less toward decimation (Jones, 2004). The paper will feature the nearby task at Los Angeles that had been named as Bunker Hill venture and will talk about the conditions that prompted t his choice of achieving a urban restoration venture in Los Angeles. The job of intensity first class, pluralism, portability, financial rivalry and government system has additionally been talked about in the paper all through. Fortification Hill is the Los Angelesââ¬â¢ most established arrangement of redevelopment that spreads over the territory of 133 sections of land. The venture received in 1959 by the city board of Los Angeles got changed into a task of region redevelopment in 1968. The venture territory viewed as limited by Hill Street (east), First Street (north), Fifth Street (south) and Harbor Freeway (west) (Dawson, 2008). The zone had been moved to incorporate twenty-five formative locales of enormous mass. The formative arrangement additionally remembered the development of another road framework for request to control the steepness of slope and to interface the lofty zone with close by flatlands. The four locales out of the twenty-five significant formative destinatio ns were under the responsibility for/LA though two were claimed by County. The task of Bunker Hill had been the aftereffect of persistent battle against the claims by City Council that won its case for urban recharging venture in 1964. The assets raised for the finishing of venture were at first $33 million and barely any grumblings were submitted against the arrangement. Nonetheless, in 1968 the task was renamed as Bunker Hill Redevelopment venture which recently was known as urban recharging venture (Fante, 2002). It is worth-referencing that the territory had been stayed unattended for the period from 1800ââ¬â¢s to 1920ââ¬â¢ because of the absence of water framework and different administrations that had not arrived at that place at that point. The Bunker Hill because of the lofty geology had been the troublesome venture to achieve and it was the important to remake it so as to give space to neighborhoods that were turning out to be stuffed (Fante, 2002). The Great Depressi on had additionally contributed in the carelessness of this sloping region regarding revamping the site. Along these lines, in 1940ââ¬â¢s it was practically difficult to consider reproducing the region and putting a ton of cash in doing as such when the nation was confronting monetary emergency and wrongdoing acts at the pinnacle. In the past the site had been the spot of Victorian manors which currently became urban rot. Broad reviews and inquires about were directed to quantify the physical, monetary and social effects. The aftereffects of the overviews recognized the
Heaven And Earth Essay Argumentative Essay Example For Students
Paradise And Earth Essay Argumentative Essay A monolog from the play by Lord Byron NOTE: This monolog is republished from Lord Byron: Six Plays. Master Byron. Los Angeles: Black Box Press, 2007. RAPHAEL: I returned to call ye to your fit sphere,In the extraordinary name and at the expression of God.Dear, dearest in themselves, and rare less dearThat which I came to do: till now we trodTogether the unceasing space; togetherLet us despite everything walk the stars. Valid, earth must die!Her race, returnd into her belly, must wither,And much which she acquires: however goodness! whyCannot this world be made, or be destroyd,Without including ever some huge voidIn the undying positions? unfading stillIn their limitless forfeiture.Our sibling Satan fell; his consuming willRather than longer love challenged endure!But ye who despite everything are pure!Seraphs! less forceful than that mightiest one,Think how he was undone!And think if enticing man can compensateFor paradise wanted too late?Long have I warrd,Long must I warWith him who deemd it hardTo be made, and to recognize himWho middle the cherubimMade him as suns to a ward star,Leaving the lead celestial hosts at his correct h and dim.I adored himââ¬beautiful he was: gracious, heaven!Save his who made, what excellence and what powerWas ever prefer to Satans! Would the hourIn which he fell would ever be forgiven!The wish is iconoclastic: be that as it may, gracious ye!Yet undestroyd, be warnd! EternityWith him, or with his God, is in your choice:He hath not enticed you; he can't temptThe blessed messengers, from his further catches exempt:But man hath listend to his voice,And ye to womansââ¬beautiful she is,The snakes voice more obvious than her kiss.The snake yet vanquishd dust; yet she will drawA second host from paradise, to break sky law.Yet, yet, goodness fly!Ye can't die;But theyShall pass away,While ye will load up with screeches the upper skyFor short-lived clay,Whose memory in your immortalityShall long outlive the sun which gave them day.Think how your pith differeth from theirsIn everything except torment! why partakeThe anguish to which they should be heirsââ¬Born to be ploughd with years , and planted with cares,And reapd by Death, ruler of the human soil?Even had their days been left to drudge their pathThrough time to tidy, unshortend by Gods wrath,Still they are Evils prey, and Sorrows ruin.
Friday, August 21, 2020
Non banking financial intermediaries Free Essays
Non Bank Financial Intermediaries are exclusive, decentralized and generally little estimated money related go-betweens. Some are essentially occupied with support based exercises and others offer money related types of assistance of various sorts. The previous are know as Non Banking Financial NBFCs had experienced radical change. We will compose a custom exposition test on Non banking budgetary middle people or on the other hand any comparable theme just for you Request Now The post 1995 outline is portrayed with whatever nformation is accessible. NATURE There are a huge number of NBFCs and just a little extent of them report to the RBI. The RBI (Amendment) Act, 1997 characterizes NBFC as a ââ¬Å"institution or organization whose main business is to acknowledge stores under any plan or game plan or in some other way, and to loan in any way. â⬠subsequently, various credit and venture organizations enrolled under the Companies demonstration by business houses with the end goal of interest in bunch organizations Instructions to refer to Non banking budgetary middle people, Papers
Sunday, August 2, 2020
Varied states of the basement
Varied states of the basement Once I reached Room 6-001, some nearby basement sights compelled me to poke around a bit before heading over to 7-012 (a room I pass on a daily basis). ;-) Leaving Room 6-001, we continue through Building 6 and arrive at one of my favorites I mean, just look at the pattern on that window shade! I dont know why a printer cable is dangling from the ceiling in this neglected room, but it looked interesting, so I took a picture for you. Various areas of Building 6s basement are under construction, as you can tell. Turning back around to leave, I spotted this worn task chair waiting patiently in the corner. Hi, chair! How do you do? From here, I took the path beneath the Infinite with which youre familiar, thanks to a previous entry. Along the way, I thought Id show you a few highlights. The note on this door wouldnt normally be amusing, except it was late at night, and the sign was clearly no longer applicable. :-) A glassblowing lab nearby Yes, its another ice cream machine! But lets look at his friends down the corridor Yes, folks, that is a TechCash reader. Most vending machines arent so handily equipped, so keep these in mind. Were almost out of Building 3 as we pass through this outdoor driveway area connecting parking lots. Yes! Lo and behold, Room 7-012, the Heat Transfer Laboratory. On my way back to East Campus, a few other things stood out have a look. Furniture Requests, Pest Control these things dont strike me as complementary :- On a safety-themed bulletin board intended for MIT employees, this helpful instructional placard tells us what a tagout is. As you can see, some innovative joker drew a parallel between tagout and ragout, expressing his comment as shown. :-P Another mischievous bloke decided to scratch off the m in team on the door to 10-085, giving Building Services day shift their very own tea room. This inviting walkway beside 8-032 leads to an outdoor loading area with a great view of a certain dome. Retreating to shelter, I noticed that the closed door to 8-032 proved no barrier to a view inside. You see, there are these wonderful things called windows that afford a good look. :-) So this was all wonderful and fun, but it was getting late, so I decided to head back to my room. This involves going back toward Building 66, then emerging on the ground level and walking about . forty or fifty feet. Once you leave the infinite, you are presented with the tunnel toward 16. Logically, you obey the sign of No Access and turn as indicated. (Yes, there is a very usable staircase that acts as a shortcut.) On your way toward 66, you pass many labs, each with an emergency shower out front. This one looks as if it was once utilized, judging by the wall damage. Once in 66, you can turn to view an interesting room full of old, deactivated computer equipment. Unfortunately, the room is locked, the light is on and a window on the door makes you wish you were inside. Opposite this room lies another room with Keep Out inscribed on the face of the double doors. If that werent enough, the windows are painted some kind of opaque gold color, obscuring your view of the rooms contents. Some helpful wanderer stripped a small area of paint, giving just enough of an opening for my camera lens. ;-) Yes, terribly secret goods that belong behind doors marked Keep Out. We also observe an ancient freight elevator, capacity 5,000 pounds and the Alfred Henry and Jean Morrison Hayes Analytical Laboratory, in which lots of analysis occurs atop these bare cabinets. Standard lab equipment: shop vac! ;-) Okay, back into the main walkway, toward the staircase leading me to 66s lobby I come across the entry to some kind of facility with bored employees. A window in the door affords me a prime view of their collection of fruit stickers, helpfully arranged next to a cluster of mail inboxes. Can you make out some brands? ;-) I see Chiquita and Sunkist. Okay, it was time to get back to my room. Stay tuned for a fun day trip idea!
Sunday, June 21, 2020
History of computer mouse - Free Essay Example
History of computer mouse Dr. Douglas Engelbart has invented the first device that came out as mouse in the year1964.During this time the only way of moving the cursor around on a computer screen was using the arrow keys on the keyboard and it was really inefficient and awkward to use. A small brick like mechanism with one button on top and two wheels on the underside was made by Douglas. The purpose of these wheels is to detect horizontal and vertical movement and on the whole the unit was little bit difficult to use. For viewing the cursor on the monitor this unit was linked to the computer by a cable so the motion signals could be electrically transmitted .As the device with its long cable tail looked like a mouse so the name mouse came into picture.NASA team tried different methods of moving cursors and pointing to objects on the computer screen like the devices steering wheels, knee switches, and light pens, but in tests of these devices Engel arts mouse gained popularity. Engineers thought that the mouse was perfect for drawing and drafting purposes and could develop computer aided designs at their own desks. Slowly mouse began to be called as input/output device. To make the scrolling easier the mouse began to multiply rapidly and to make the mouse cordless by using the radio frequency signals. Mouse tail is the electrical cable leading out of one end and the o ther end is used for connecting to the central processing unit. Composition of the Mouse Body of the mouse: * The outer surface of the mouse is Hard plastic body which the user guides across a flat surface * The tail of a mouse is an electrical cable that leads out from one end and finishes at the connection at the Central Processing Unit * It has one to three buttons at the tail end which are external contacts to tiny electrical switches * With a click on the button the electrical circuit is forced to close and the computer receives a command * Below the mouse theres an plastic hatch that fits over a rubberized ball which exposes a small part of the ball * A support wheel and two shafts hold the ball in place inside the Mouse * Rotation of the spokes causes IR light signals from light emitting diode to flick through the spoke which are then captured by a light detector * Phototransistors help to translate these light signals into electrical pulses which reach the integrated circuit interface in the mouse * These pulses then confirms the IC whether the ball has followed an up down or left right movement * The IC commands the cursor to move on the screen accordingly * The interface IC is then ascended onto a printed circuit board * This forms the skeleton to which each and every internal workings of the mouse are attached * The information from the switches and signals from the phototransistors is collected by a computer chip or IC * These are then sent to the computer by means of a data stream The Brain of the Mouse: * Every mouse design consists of an individual software known as driver * These driver are external brain that enables the computer to understand the mouse signals * The driver tells the computer how to interpret the mouses IC data stream including speed, direction, and clicked commands * Some mouse drivers allow the user to assign specific actions to the buttons and to adjust the mouses resolution (the relative distances the mouse and the cursor travel). * The Mouse which are purchased as a part of computer packages have built in drivers or is programmed initially in the computers (Source: Fig 1 Internal circuit of the mouse https://www.ehow.com/how-does_4574328_computer-mouse-work.html RAW MATERIALS IN THE MOUSE The outer shell of the mouse and the majority of its internal parts, which includes spoked wheels and shafts are usually made up of Acrylonitrile Butadiene Styrene (ABS) plastic which is usually injection moulded. The ball is basically made of metal which is rubber coated and is usually supplied by a speciality supplier The electrical micro switches which is produced from metal and plastic are of shelf items which are supplied by subcontractors even though the designers of the mouse can specify force requirements for switches to make it easier of harder to click. The chips or IC could be standard items even though individual manufacturer might have proprietary chips which can be utilised in its complete products line. The outside source also supplies electrical cables and over moulds To suit the design of mouse the printed circuit board (PCB) over which the mechanical and electrical components are mounted are custom made Oscillators, integrated circuits, capacitors, electrical resistors and various other components are made of different types of plastic, metal and silicon The raw materials which are used in manufacturing of a computer mouse are as follows: Component name Material mouse ball Low alloy steel Housing Acrylonitrile butadiene styrene (ABS) insulation wire Polyvinylchloride (tpPVC) rubber material Polyurethane (tpPUR) USB inside part Stainless steel plastic part inside USB Phenolics USB jack(casing) Acrylonitrile butadiene styrene (ABS) internal wires Copper Mouse Design The new mouse starts with associations with product development manager, marketing representative, designer and a consulting ergonomist. A list of human factors guidelines are formed which indicate the size range of hands, amount of work, touch sensitivity, support of hand in a neutral position, while operating the mouse the users posture, finger extension needed to reach the buttons, use by both right and left handed individuals, no prolonged static electricity and lastly the requirements safety and comfort They alter widely depending on whether the use of mouse is in home or office computers The brief design of mouse for the proposed mouse is written to explain the purpose of the product and what it attains; an appearance is also proposed in staying along with the probable market. The design team comes back to the table along with foam models; for a single mouse design scores of various shapes are made on these models the user testing is done whereas the preliminary tests are perf ormed by engineers or the focus may be turned onto groups as typical users or observes one to one testing with user samples. (Source: Fig 2 Design of the mouse https://www.computerhope.com/jargon/m/mouse.htm ) When a suitable selection is chosen, wooden models which are more refined and painted are produced from the winning design. Based on the feel, shape and looks of the model input is gathered again and the ergonomist reviews the probable designs and confirms the goal of human factors guidelines to be achieved. After an optimal design is chosen the engineering team starts designing the internal components. A three dimensional rendering is generated by the computer and the same data are used to machine cut the shape of the interiors of the exterior shell with every details. Inside the structure the mechanical and electronic engineers fit the printed circuit board and the encoder mechanism. The phenomena of fitting the workings on to the shell is iterative, the changes are then made and then the design and fit process are repeated until the mouse achieves the design objectives and the design team is happy. The custom chips are then designed and produced on a trial basis and then tested; for the design to meet the performance objectives and provide it unique, competitive and marketable characteristics the help of custom electronics is required. The fully completed design figures are handed over to the project tooled who then starts the process of modifying machines to manufacture the mouse. To generate the injection moulding of the shell tooling diagrams are made into use. The size, shape, volume of the cavity, the number of gates through which the plastic will be injected into the mould, and the flow of the plastic through the mold are all diagrammed and studied. After reviewing the final tooling plans the tools are cut using computer generated data. Sample plastic shells are made as try shots to find out the actual flow lines and to make sure that voids are not included. Changes are made till the process is perfect. Texture is added to the external appearance of the shell by sand blasting or by acid etching. The Manufacturing Process: To manufacture a computer mouse several processes are used to make different pieces of the unit. The processes that are used in manufacturing are as follows 1. First the Printed Circuit board (PCB) is prepared in the journey of manufacturing and assembling steps. This board is a flat, resin coated sheet that can be of surface-mount design or through hole design. The assembly of surface mount version is entirely done by the machine. The other electrical components are placed on to the board in prescribed pattern by a computer controlled automatic sequencer. In the PCB assembly, the attachment wires of the electronic components are inserted in holes. Then all the components are mounted on the board, the bottom surface is passed through molten lead solder in a soldering machine. This machine removes contaminants by passing the board with flux. The board is gently heated by the machine and the components it carries by infrared heat is to lessen the possibility of thermal shock. The solder raises each line by hair-like activity, seals the perforations and repairs the components in the correct place. . After this process is done the PCB is cooled and is visually inspected before the mechanism is attached. 2.A separate unit is assembled for the encoder mechanism. Injection moulding process is make used to manufacture the plastic parts (computer mouse case housing) with proper specifications and the left over scrap plastic material is trimmed off. The whole unit is fastened to the PC Board using screws keeping in view after the encoder mechanism is completely assembled. Using a set of wires ,shielding and rubber cover the mouses tail and its electrical cable attached are manufactured. Overmolds are the additional pieces of the cable to prevent the cable from detaching from the mouse. We can make our own shapes of design for overmolds, the near mouse overmold is hooked to the housing at the opposite end of the tail, the connector is soldered to the wires and the connector overmold is pop pled into place. 2. The pieces of the outer shell are visually inspected after moulding, trimming, and surface (finish) treatment and prior to assembly. The external housing is assembled in four steps. To the bottom of the shell the completed PCB and encoder assembly are inserted. The buttons are fitted into the top part of the housing, attaching the cable and the top and bottom are screwed together using automated screwdrivers. 3. The final electronics and the achievement quality inspection are accomplished, if assembly is complete in the substantial one. Rubber or neoprene feet with the adhesive covering in front-turned at a side is added the lower surface of the mouse. 4. A programming team has been developing,testing,reproducing the mouse driver firm ware, while the the tooling designs and physical assembly are in progress. As above said firmware is the combination of software and hardware codes which has the unity of integrated circuit,translated mouse directional movements and micro switch signals which are understood when the mouse is attached. By-products and waste: Computer mice makers do not generate by-products from mouse manufacture, but most offer a range of similar devices for different applications. In order to avoid the design, tooling, assembly modification costs the new and multiple designs are in corporate when possible. Waste is minimal. The mouses ABS plastic skin is highly recyclable and can be ground, moulded, and reground many times. Small quantities can be recycled using metal scrap and other plastics. ECO AUDIT TOOL INTRODUCTION: Eco audit tool enables the product designers to quickly evaluate the environmental impact of a product, and it helps to reduce the environmental measures. By making use of CES software, this can be achieved by focussing on two environmental stressors * ENERGY USAGE * CARBON FOOTPRINT considering the main product life phases of a product Overview of component lifecycle (Source: https://www.treehugger.com/RONA-product-life-cycle-graphic.JPG ) Example output from the eco audit tool (Source: https://www.grantadesign.com/images/selector09/EcoAuditGraph.jpg ) To minimize the environmental footprint of a product, identification of the dominant phase is very important and it enables a designer to establish which aspect of the design to target The result of the eco audit forms the objective for the product design. This objective is dependent on both the dominant phase and the product application. Figure Examples of design objectives associated with minimizing the environmental impact of the main life (Source: https://www.grantadesign.com/images/audit-strategies.jpg ) Life Cycle Analysis: The Life cycle analysis of the product life cycle is split into three main sections in the eco audit tool: 1. Material, manufacture, and end of life 2. Transport 3. Use 1. Material, manufacture, and end of life This the first section of the product definition which allows us to enter the Bill of Materials'(BOM) for the product, with each line representing an individual component. There is no limit on the number of components that can be added. Reading across the input dialog box, the entries are as follows Quantity This column tells us about the different number of individual components that are used in making of the product. This quantity column enables the specification of duplicate components in a hierarchal order. . The default value is one because there is no product with zero quantity. Component name It is the dialogue box for entering the name of each individual component of the product. Material The material drop-down menu displays the full Material Universe tree of the active database. Materials are selected by browsing the tree and clicking on the record for the material of our interest. Once we have done this, the eco audit tool extracts data from the material record to determine what options to display in the Primary process and End of life menus. Certain products include components that do not contribute to all life phases. For example, the water in a drinks bottle contributes to the transportation phase but not the material and manufacturing phases. This contribution is handled by creating a dummy component with no material, or process, assigned to it. Recycle content We have three recycle contents which can be specified as 0%, 100%, and typical %. As the names suggest, 0% represents the use of virgin material, where all the feedstock is produced from raw materials. 100% represents the other intense, where the material is manufactured entirely from feedstock reclaimed from end of life components. Typical %, lies between these two extremes and accounts for the level of recycled material incorporated back into the supply chain as standard practice. This applies to materials, such as metals and glasses, where end of life recycling has become integrated into the supply chain. This practice leads to standard grades containing significant levels of recycled material. For example, lead alloys generally contain 50-60% recycled material. Although many materials can be recycled, and have recycle fraction in current supply values quoted in the Material universe database, they are not routinely reintroduced into the standard supply. As a result, the typical recycle content option is only displayed for grades of metal and glass that are flagged as recyclable. Primary process The primary process dropdown menu displays the processes that are applicable to the material selected from the tree. This information, and associated data, is extracted from the materials datasheet. The available primary processes in the database are shown in the below table. Table 1. Available primary processes (Level 1 and 2 database) Material Process Metals Casting Forging Metal powder forming Vaporization Polymers elastomers Polymer molding Polymer extrusion Technical ceramics Ceramic powder forming Non-technical ceramics Assembly and construction Glasses Glass molding Composites Casting Simple composites forming Advanced composite forming Natural materials Assembly and construction Electrical components As electrical components are finished sub-assemblies, the material and process energies (and CO2) have been incorporated into one value [Embodied energy, primary production]. As a consequence, no processing options are available for these components. Mass (kg) Numeric field for specifying the mass of the component. This value is multiplied by the quantity (Qty) field value to determine the total mass for the component. End of Life This drop-down menu displays all possible end of life options for the selected material. There are seven end of life options and their applicable materials. Out of these seven, the first four are directly displayed on the datasheet depending on the type of material. The remaining life options are not specified and are added as other possible options for all materials. The end of life option generally defaults to Landfill. The main exception is for toxic materials, which default to the next viable option (usually in down cycle order). Table : describes the possible end life options and their Summary related to the materials End of life option Applicable materials Landfill All non-toxic materials Combust (for energy recovery) All organic-based materials with a heat of combustion value 5 MJ/kg Downcycle All Recycle All unfilled: metals / glasses / thermoplastics /TPEs Particulate filled thermoplastics Particulate whisker reinforced metals (All ceramics / thermosets / elastomers / natural organic / natural inorganic materials and all fiber reinforced materials are marked as non-recyclable) Re-engineer All Reuse All blank All 2. Transport Transportation phase is the second part of the product definition. This phase relates to the transport of the finished product from the source of manufacture to the customer Each line in the table relates to one stage of the process journey. There is no limit on the number of stages that can be added. For each stage, three parameters are defined: stage name, transport efficiency (transport type), and distance. The transport efficiency is specified through the transport type dropdown menu, which lists the main methods for transporting goods. Table : transport options and associated environmental burden Transport energy (MJ/tonne/km) Carbon footprint, source (kg/MJ) Sea freight 0.16 0.071 River / canal freight 0.27 0.071 Rail freight 0.31 0.071 32 tonne truck 0.46 0.071 14 tonne truck 0.85 0.071 Light goods vehicle 1.4 0.071 Air freight long haul 8.3 0.067 Air freight short haul 15 0.067 Helicopter Euro copter AS 350 50 0.067 To determine the environmental impact of each stage the energy usage and the carbon foot print values are combined with the product mass and distance. i.e. Energy usage is given by Transport Energy =Transport energy per unit mass * distance * product mass. And carbon foot print by Transport co2=Transport energy per unit mass*Distance*product mass*carbon foot print. 3. Use The final stage of the product definition is the use phase. Product life Numeric field for specifying the product life, in years. The value for the year is considered to be default (1). Country electricity mix The Country electricity mix drop-down menu enables the particular mix of fossil and non-fossil fuel of the country of use to be specified. This is split into three main groups: global regions, individual countries, and fossil fuel percentage. The default option is World. Compared to the other sources, such as nuclear, hydroelectric and wind power, the environmental burden of electricity generated from fossil fuels is significantly higher. So this specification of country of use is very important phase of the eco audit tool. This is due to the relatively low efficiency in converting fossil fuels to electricity (1MJ of electricity requires about 3MJ of fossil fuel). The impact of a countrys energy mix on the energy equivalence and carbon footprint of its electricity supply is summarized in Figure3. Figure 3. Country electricity mix: Energy equivalence carbon footprint per MJ of electricity used (Source: https://images.google.co.uk/imgres?imgurl=https://www.additiverich.com ) The final grouping in the country electricity mix menu specifies the electricity mix based on the proportion derived from fossil fuels (0% to 100% at 5% intervals). The environmental impact of these has been calculated using the following assumptions: a) The carbon footprint of electricity is dominated by the contribution from fossil fuels, with the proportion derived from other sources having no, or negligible, contribution. b) And the conversion process for generating electricity from fossil fuels is taken to be 33% efficient. In this use phase we have two modes namely static mode and mobile mode which describes the product energy usage. In static mode the available options are energy input and output which describes the conversion of one form of energy into another, power rating and usage. In the mobile mode, we have fuel and mobility type and its usage. Modes of use The use phase is divided into two modes of operation, static, and mobile. Static relates to products that are (normally) stationary but require energy to function. For example: electrically powered products like electric kettles, refrigerators, and power tools. Mobile relates to transportation systems, where mass has a large influence on energy consumption. To define these modes of use, check the static mode and mobile mode boxes. For products that operate in both modes, check both boxes. Static mode: Three parameters define the static use mode: Product efficiency, power rating, and the duty cycle. The product efficiency is specified through the Energy input and output dropdown menu. This specifies the energy conversion efficiency of the product and the environmental burden associated with its energy source . For electric products, the energy equivalence and carbon footprint values depend on the country of use Table : Available energy conversion options and associated environmental data Input and output type Product efficiency Energy equivalence, source (MJ/MJ) Carbon footprint, source (kg/MJ) Electric to thermal 1 Country specific Country specific Electric to mechanical (electric motors) 0.89 Country specific Country specific Electric to chemical (lead acid battery) 0.83 Country specific Country specific Electric to chemical (advanced battery) 0.89 Country specific Country specific Electric to em radiation (incandescent lamp) 0.17 Country specific Country specific Electric to em radiation (LED) 0.86 Country specific Country specific Fossil fuel to thermal, enclosed system 1 1 0.071 Fossil fuel to thermal, vented system 0.70 1 0.071 Fossil fuel to electric 0.35 1 0.071 Fossil fuel to mechanical, internal combustion 0.30 1 0.071 Fossil fuel to mechanical, steam turbine 0.40 1 0.071 Fossil fuel to mechanical, gas turbine 0.48 1 0.071 Light to electric (solar cell) 1* 1 0 The product power rating and duty cycle are specified by the Power rating and Usage inputs. These parameters are combined with the product efficiency values to determine the static mode contribution: Static energy (J) =power rating (W)*duty cycle*(energy equivalence /production efficiency) Static use CO2(kg) = ((power rating (W)*duty cycle)/1*10^6)) *(carbon footprint/production efficiency) Where : Duty cycle(S)=production life (years)*days per year*(house per day*3600) Mobile mode: The mobile use mode is defined by three parameters: The transport type, efficiency, and the distance travelled over the products life. The transportation type and efficiency is specified through the Fuel and mobility type drop-down menu. This determines the environmental burden associated with the transportation and fuel type . For electric transportation modes, the energy equivalence and carbon footprint values depend on the country of use. Table 5. Available fuel and mobility types and associated environmental data Fuel and vehicle type Energy (MJ/tonne.km) Energy equivalence, source (MJ/MJ) Carbon footprint, source (kg/MJ) Diesel ocean shipping 0.16 1 0.071 Diesel coastal shipping 0.27 1 0.071 Diesel rail 0.31 1 0.071 Diesel heavy goods vehicle 0.90 1 0.071 Diesel light goods vehicle 1.4 1 0.071 Diesel family car 1.6 1 0.071 Electric family car 0.17 Country specific Country specific Electric rail 0.11 Country specific Country specific Gasoline hybrid family car 1.1 1 0.071 Gasoline family car 2.1 1 0.071 Gasoline super sports and SUV 4.8 1 0.071 Kerosene long haul aircraft 8.3 1 0.067 Kerosene short haul aircraft 15 1 0.067 Kerosene helicopter (Eurocopter AS 350) 50 1 0.067 LPG family car 3.9 1 0.58 These values are combined with the product usage and distance parameters to determine the contribution of the mobile mode: Source ðŸ⢠Granta Design,Cambridge,UK ,2009) Report: The final section in the product definition allows an image and notes to be added to the eco audit report. This is compiled by clicking on the View Report button. These can be categorised into three sections: 1. Summary page provides an overview of the eco audit, with headline values for each life phase. This enables rapid identification of the dominant life phase. 2. Detailed breakdown of energy usage (accessed via Energy Details link on summary page) provides a component-by-component breakdown of each life phase, enabling the main contributors to the dominant phase to be identified. This page lists all data and calculation factors used by the eco audit tool. 3. Detailed breakdown of carbon footprint (accessed via CO2 Details link on summary page) similar to above, except for carbon footprint. The summary table quotes two totals for energy and CO2. The first value, Total, sums the environmental burden associated with the life of the existing product this is similar to the approach used by life cycle assessment (LCA) techniques. The second value, Total (including end of life saving/burden), includes end of life benefits that are realized in future life cycles. This value is useful for designers, looking to design for the environment, as it enables them to maximize the benefits that could be realized in future life cycles. Source ðŸ⢠Granta Design,Cambridge,UK ,2009) Product name: Computer Ball Mouse, BOM: Life: 4 years COMPUTER BALL MOUSE: Figure below shows a typical computer ball mouse. The bill of materials (BOM) of the product is listed in table. The computer mouse is manufactured in south East Asia and transported to Europe by air freight, a distance of 11,000 km then distributed by 24 tonne truck over a further 275 km. The power rating is 15 W and the mass is 68.5 gms .The computer ball mouse is a pointing device used to generate movement commands for controlling a cursor position displayed on a computer monitor or a laptop. Step 1: Materials and manufacture: 100 units Material: Breakdown by component Component Material Recycle content Material Embodied Energy * (MJ/kg) Total Mass (kg) Energy (MJ) % mouse ball Low alloy steel Typical % 24.338 0.015 0.365 3.38 Housing Acrylonitrile butadiene styrene (ABS) 100% 40.423 0.062 2.506 23.23 insulation wire Polyvinylchloride (tpPVC) 100% 33.757 0.030 1.013 9.39 rubber material Polyurethane (tpPUR) 100% 49.916 0.012 0.599 5.55 USB inside part Stainless steel Typical % 59.288 0.005 0.296 2.75 plasticpart inside USB Phenolics 0% (virgin) 90.335 0.006 0.542 5.02 USB jack(casing) Acrylonitrile butadiene styrene (ABS) 100% 40.423 0.021 0.849 7.87 internal wires Copper Typical % 48.115 0.096 4.619 42.81 Total 0.247 10.789 100 Mass and energy data for material phase Component Qty. Part mass (kg) Embodied Energy, primary production (MJ/kg) Recycle fraction in current supply (%) Embodied Energy, recycling (MJ/kg) mouse ball 1 0.015 34.871 41.952 9.764 Housing 2 0.031 96.343 0.707 40.423 insulation wire 3 0.010 80.374 0.707 33.757 rubber material 4 0.003 118.849 0.707 49.916 USB inside part 5 0.001 81.149 37.417 22.722 plasticpart inside USB 6 0.001 90.335 0.707 0.000 USB jack(casing) 7 0.003 96.343 0.707 40.423 internal wires 8 0.012 70.937 42.895 17.734 The bar chart in the below figure shows the energy breakdown delivered by the eco audit tool. Table show the energy and co2 summary Manufacture: Breakdown by component Component Process Processing Energy (MJ/kg) Total Mass (kg) Energy (MJ) % mouse ball Casting 4.173 0.015 0.063 4.21 housing Polymer molding 10.958 0.062 0.679 45.67 insulation wire Polymer extrusion 3.575 0.030 0.107 7.21 rubber material Polymer molding 10.129 0.012 0.122 8.17 USB inside part Casting 4.140 0.005 0.021 1.39 plasticpart inside USB Polymer molding 12.755 0.006 0.077 5.14 USB jack(casing) Polymer molding 10.958 0.021 0.230 15.47 internal wires Forging, rolling 1.975 0.096 0.190 12.74 Total 0.247 1.488 100 Step 2: Transport For step 2 it retrieved the energy and CO2 profile of the selected transport mode from a look-up table. Transport: Breakdown by transport stage Total product mass = 0.25 kg Stage Name Transport Type Transport Energy (MJ/tonne.km) Distance (km) Energy (MJ) % East Europe Rail freight 0.310 2500.000 0.191 26.00 Rotherham 14 tonne truck 0.850 126.000 0.026 3.59 Hampshire Light goods vehicle 1.400 308.000 0.107 14.47 Birmingham 14 tonne truck 0.850 75.000 0.016 2.14 East Europe Rail freight 0.310 2500.000 0.191 26.00 Stortford 14 tonne truck 0.850 351.000 0.074 10.01 Rothernham 14 tonne truck 0.850 126.200 0.026 3.60 Sussex Light goods vehicle 1.400 302.000 0.104 14.19 Total 6288.200 0.736 100 Breakdown by components Total transport distance = 6.3e+03 km Component Total Mass (kg) Energy (MJ) % mouse ball 0.015 0.045 6.07 Housing 0.062 0.185 25.10 insulation wire 0.030 0.089 12.15 rubber material 0.012 0.036 4.86 USB inside part 0.005 0.015 2.02 plasticpart inside USB 0.006 0.018 2.43 USB jack(casing) 0.021 0.063 8.50 internal wires 0.096 0.286 38.87 Total 0.247 0.736 100 It then multiplies these by the total weight of the product and the distance travelled. If more than one Transport stage is entered; the tool sums them, storing the sum. For step 3 the tool retrieves an efficiency factor for the chosen energy conversion mode (here electric to mechanical) finding in its look-up table. STEP 3: USE PHASE: STATIC MODE Use: Mode Energy (MJ) % Static 0.000 Mobile 0.000 Total 0.000 100 The tool uses this and the user-entered values for power and usage to calculate the energy and CO2 profile of the use phase. For the final step 4 the tool retrieved the recycle energy and recycle fraction in current supply for each material and replaced the energy and CO2 profiles for virgin materials with values for materials made with this fraction of recycled content. Finally it created a bar chart and summary of energy or CO2 according to user-choice and a report detailing the results of each step of the calculation. An overall reassessment of the eco impact of the computer mouse should, of course, explore ways of reducing energy and carbon in all four phases of life, seeking the most efficient methods. Housing Materials selected are : 1) Acrylonitrile butadiene styrene (ABS) Plastic 2) Polymethyl methacrylate (acrylic,PMMA) 3) Polystyrene (PS) Materials used in computer mouse Copper Copper is used in the wiring for tail of the mouse . Copper is an excellent electrical conductor which is extremely used in wiring for power lighting ,heating and several daily purposes ,but copper are not used directly ,they are bounded with insulation wire .The metal is also used in electric and electronic compounds ,so that it can flow electricity very easily ,as it is a good conductor of electricity ,this is type of metal in which there are many types of contents present in the same form and in general cadmium free copper is known with the name electrolyte copper which is 100 pure. Year by year the usage of copper is increasing, at present every year 15 million tonnes of copper is used .copper has several properties which are combidely remarkable .It is a good electrical and thermal conductor it is ductile and can prevent bacterial growth .recycling of copper is important as it is limited .And recycling of copper is well suited as it can be re melted without losing the properties. Extraction of copper In nature the metal are found in compounds which are usually combined with oxygen. The compounds are mixed up in rocks or minerals which are called as ores. A ore is a rock that has enough metal in it to make it worth extracting the metal. The main ore of copper are * Chalcopyrite * Bornite * Malachite The tree main stages of extracting copper are * Mining * Extraction * Purification Mining process: In this process the copper ore will be dug form the ground. The ore contains some mineral and lot of waste rock. For every 1000 tones 6 tonnes of copper can be extracted. Copper electrolyte Copper sulphate fig explains us the electrolysis process extracting copper. Extraction process: In this process the ore has to be changed in to metal ,this process is called reduction. The table explains us the extraction of copper and process used. Metal Ore Reactivity Primary process Copper Various ore Low Roasting in air Purification: In this process many metal are impure when they are extracted from there ores, impurities have to be removed copper is purified by electrolysis process as mentioned above in the figure; the copper is transformed from an impure anode to cathode of an electrolytic cell. The copper produced by this process is 99.99% pure. Recycling of copper is very important: This process of recycling has several advantages like price, limited resources, energy efficiency, land fills costs, and the last important thing is environment. Manufacturing process of copper used in mouse cable: There are two process used in manufacturing they are rolling and forging. USB INSIDE PART (METAL) 1) Stainless steel 2) Medium carbon steel 3) High carbon steel 4) Low carbon steel Stain less steel: U.S.B port is made of stain less steel .stainless steel is defined as in ox steel which is defined as alloy steel with 11% chromium content by mass, it is stainless steel because of the content In addition to iron, carbon, and chromium, modern stainless steel may also contain other elements, such as nickel, niobium, molybdenum, and titanium. It is the addition of a minimum of 12% chromium to the steel that makes it resist rust, or stain less than other types of steel. The invisible layer chrome-containing oxide named passive film can be formed by the mixture of oxygen in the atmosphere and chromium in the steel. The sizes of chromium atoms and their oxides are similar, so they pack together on the surface of the metal, forming a stable layer only a few atoms thick. If the metal is cut or scratched and the passive film is disrupted, more oxide will quickly form and recover the exposed surface, protecting it from oxidative corrosion. Iron, on the other hand, rust quickly because atomic iron is much smaller than its oxide, so the oxide forms a loose rather than tightly-packed layer and flakes away. The passive film requires oxygen to self-repair, so stainless steels have poor corrosion resistance in low-oxygen and poor circulation environments. In seawater, chlorides from the salt will attack and destroy the passive film more quickly than it can be repaired in a low oxygen environment of chromium. Manufacturing process: The manufacture of stain less involve several process in the first the steel is melted and then it is casted in to solid form, the heat treatment is done in then it is cleaned and the polishing of the metal is done when the desired shape is achieved. The stages of extracting stain less steel are * Melting and casting * Forming * Heat treatment * De scaling * Cutting * finishing Melting and casting: In this process the raw materials are melted together in an electric furnace. The whole process takes half days for intense heat. After the melting is done, the molten steel will be casted into different forms which include blooms (rectangular shapes), billets which are round or square in shape with 1.5 inches or 3.8 centimetres in thickness, slabs, rods, and tube rounds. Forming: The semi finished steel goes through the forming operations with hot rolling in which heat is formed to steel and the steel is heated and passed through huge rolls .where the stain less steel is formed. Heat treatment: Most types must go through an annealing step, before stainless steel is formed. Annealing is a heat treatment where steel is heated and cooled under controlled conditions to relieve internal stresses and soften the metal. De scaling :De scaling is a process where Annealing is caused to build-up to form on the steel. The scale can be removed using several processes. The de scaling steps occur at different stages depending on the type of steel being worked. Bar and wire, for instance, go through further forming steps like hot rolling, forging, or extruding, after the initial hot rolling before being annealed and descaled. Sheet and strip, go through an initial annealing and descaling step after hot rolling. After cold rolling passing through rolls at a relatively low temperature, which produces a further reduction in thickness, sheet and strip are annealed and descaled again,a final cold rolling step then prepares the steel leading to final processing. Cutting : In this process the stainless steel is done with Cutting operations which are usually necessary to obtain the desired blank shape or size to trim the part to final size. Mechanical cutting is commonly obtained to the cut in to the desired shapes Finishing: Finishing is an important process because appearance is the important process. Certain surface finishes also make stainless steel easier to clean, which are important for sanitary applications. A smooth surface is obtained by polishing also provides better corrosion resistance. Surface finishes are the result of processes used in fabricating the various forms or are the result of further General process used for the manufacture of stainless steel https://www.madehow.com/images/hpm_0000_0001_0_img0192.jpg Insulation for cables: Materials used are: 1) Polyvinyl chloride (PVC) 2) Polyoxymethylene (POM) 3) Polyethylene Terephthalate (PET) 4) Polyetherethreketone (PEEK) Polyvinyl chloride: copper wire is circulated by insulating wire which is made up of poly vinyl chloride It is a thermo plastic layer and also vinyl polymer constructed of repeating vinyl groups, poly vinyl is the most common produced plastic, it is noted that nearly 40 millions of tonnes is manufactured every year. Manufacturing process: Poly vinyl is manufactured in polymerization process. Most of the common mass is chlorine which creates a given mass of PVC; due to this it requires less polymer than any other polymer. PVC has a higher density than hydrocarbon polymers, and production of chlorine has its own energy requirements , which ends up being of little practical relevance in the production of most solid objects.The most widely used process for production is suspension polymerization. , VCM and water are added into the reactor of polymerization and initiator of polymerization, along with other chemical additives, which are added to initiate the polymerization reaction ,the reaction vessel which are contented are mixed in an order to maintain the suspension and ensure a uniform particle size of the PVC resin. The reaction comes out to be exothermic, which requires a cooling mechanism this is because it has to maintain the reactor contents at the appropriate temperature. During the course of reaction,PVC slurry is degassed and stripped to remove excess VCM which is recycled into the next process, then passed though a centrifuge to remove most of the excess water. The slurry is then dried further in a hot air bed and the resulting powder sieved before storage or pelletization. In normal operations, PVC has a VCM content of less than 1 part per million, Other production processes, such as micro-suspension polymerization and emulsion polymerization, produce PVC with smaller particle sizes (10 ÃŽà ¼m vs. 120-150 ÃŽà ¼m for suspension PVC) with slightly different properties and with somewhat different sets of applications. The product of the polymerization process is unmodified PVC. Before PVC can be made into finished products, it almost always requires conversion into a compound by the incorporation of additives such as heat stabilizers, UV stabilizers, lubricants, plasticizers, processing aids, impact modifiers, thermal modifiers, fillers, flame retardants, biocides, blowing agents and smoke suppressors, and, optionally pigments. https://img.informer.com/wiki/mediawiki/thumb.php?f=PVC-polymerisation-2D.pngwidth=40 Low alloy steel: In the research it was found that the properties were similar to stain less steel and the low alloy steel used in the mouse was with same properties as used in the mouse ball. Rubber material (Coating over metal Ball) Materials used are: 1) Polyurethane 2) ABS 3) Polyester 4) Cellulose polymers(CA) 5) Polystyrene Polyurethane: Polyurethane is rubber based material which is bounded on stainless steel of the mouse, the mouse is in circle shape and that is ripped off with polyurethane Polyurethanes, are most commonly known as polycarbamates, they belong to a larger class of compounds called polymers. Polymers are macromolecules which are made up of smaller. The repeating units known as monomers, they are attached with side groups which consist of a primary long chain back bone molecule. Carbamate groups characterize the Polyurethanes (-NHCO2) in their molecular backbone. By reacting monomers in a reaction vessel, Synthetic polymers, like polyurethane, are produced In order to produce polyurethane, a stepà ¢Ã¢â ¬Ã¢â¬ also known as condensationà ¢Ã¢â ¬Ã¢â¬ reaction is performed. In this type of chemical reaction, the monomers that are present contain reacting end groups. Specifically, a diisocyanate (OCN-R-NCO) is reacted with a diol (HO-R-OH). The first step of this reaction results in the chemical linking of the two molecules leaving a reactive alcohol (OH) on one side and a reactive isocyanate (NCO) on the other. These groups react further with other monomers to form a larger, longer molecule. This is a rapid process which yields high molecular weight materials even at room temperature. Polyurethanes that have important commercial uses typically contain other functional groups in the molecule including esters, ethers, amides, or urea groups. Manufacturing process for the extraction of polyurethane https://www.niir.org/g/c/ni-173/11.jpg References: 1) Granta Design Limited, Cambridge, (2009)(www.grantadesign.com), CES EduPack User Guide 2) Ashby, M.F. (2005) Materials Selection in Mechanical Design, 3rd edition, Butterworth-Heinemann, Oxford, UK , Chapter 16. 3) https://www.gdrc.org/uem/lca/lca-define.html 4) Baer, E., Advance polymer ,Scientific American, Vol.225,No.4,Oct 1896. 5) Engineered materials Handbook ,Vol 2 , Engineering Plastics, ASM international ,Materials Park,OH,1988 6) R.J., and P. Lovell , Introduction to polymers, 2nd edition ,chapman and Hall , New York , 1991. 7) Billmeyer , F.W..Jr.,Text book of Polymer science,3rd edition, Jhon Wiley sons , New York ,1984 . Chapter 11. 8) Kingery , W.D.,H.K.Bowen ,and D.R, Uhlmann,Introduction metals, 2nd edition ,jhon Wiley sons ,New York ,1976 Chapter 14 and 15. 9) Gordon , P., principles of phase diagrams in materials systems, McGraw hill Book company new York ,1986. 10) Cambridge Engineering Selector v4,Granta Design Limited , Cambridge, UK,2005. 11) Cebon,D.Ashby,M.F. and Lee-Shothaman,L.CES Edupack 2009 users Manual , 1, Granta Design limited, Cambridge, UK,2005. 12) ABS acrylonitrile butadiene styrene On Designsite.dk, lists applications. Retrieved 27 October 2006. 13) Ed., Time-Life Books. Input/output Understanding Computers. Alexandria, VA: Time-Life Books, 1990 14) Alexander, Howard. Behold the Lowly Mouse: Clever Technology Close at Hand. 15) N.A. Hart. 2009. Course documents on sustainable design and manufacture. Available online from: https://blackboard.staffs.ac.uk/webapps/portal/frameset.jsp?tab=coursesurl=/bin/common/course.pl?course_id=_5182_ 16) copper and its uses on https://www.ganapati engineering.com [accessed on 2010] 17) Copper a vital element on https:// resources .school sciences .co.uk [accessed on 2009] 18)Why is stain less steel stain less on www.science direct.com 19) Manufacturing process of stainless steel on www.industrialmetalcasting.com/pdf/ss-mfg-process. 20) polyurethane on https://www.enotes.com/how-products-encyclopedia/polyurethane 21)Lockton, D., Harrison, D.J., Stanton, N.A. Making the user more efficient: Design for sustainable behaviour. International Journal of Sustainable Engineering Vol.1 No. 1, pp. 3-8, March 2008) https://www.danlockton.co.uk/design-for-sustainable-behaviour/ 21) 22) Journal of Occupational and Environmental Medicine: February 2010 Volume 52 Issue 2 pp 163-168 LIFE CYCLE ASSESSMENT: LCA is a holistic tool used to identify the environmental consequences of a product, process or activity through its entire life cycle and to identify opportunities for achieving environmental improvements. Life cycle stages include: ÃÆ'à ¼ Raw materials acquisition, ÃÆ'à ¼ Manufacturing, ÃÆ'à ¼ Use/reuse. ÃÆ'à ¼ Maintenance. ÃÆ'à ¼ And recycling/waste management. Taking as an example the case of computer mouse an LCA involves making detailed measurements during the manufacture of the product. LCA information is to be taken into consideration is at the design stage of new products. LCA approach consists of four interrelated components: Goal definition and scoping: definition of the study purpose and objectives, identification of the product, process or activity of interest, identification of the intended end-use of study results and key assumptions employed. Inventory analysis: Identification and quantification of raw materials and energy inputs, air emissions, water effluents, solid waste, and other life-cycle inputs and outputs. Impact assessment: Qualitative and qualitative classification, characterization and valuation of impacts to ecosystems, human health and natural resources, based on the results of a life-cycle inventory. Improvement assessment: Identification and evaluation of opportunities to achieve improvements in processes that result in reduced environmental impacts, based on the results of an inventory analysis or impact assessment. LCA gives the entire cradle to grave activities of a product or process i.e from processing of raw materials to transportation, extraction, in addition to reviewing the issue of material re-use and final disposal. As a system LCA identifies processes and potential environmental burdens throughout a products life cycle. The term life cycle refers to the holistic assessment which requires the assessment of raw material production, manufacture, distribution, use and disposal including all intervening transportation steps. LCA method is one of the official methods for environmental evaluation. It recognises that every product has impact on the environment during all phases of its life and it has started a system, where each new product standard is attached with a temporary environmental annex. For in this regard life cycle assessment is a central tool. The LCA method can be divided into three basic steps Goal and scope definition Inventory analysis Impact assessment The first step in the LCA method is the goal and scope definition. For the scope the following items should be clearly described LCA is a technique that allows the comparison of the environmental impacts of materials and products. This assessment provides quantitative data to identify the potential environmental impacts of the material or product on the environment. LCA is common for assessments to be made of more limited periods eg. Cradle-to-gate and cover the entire life cycle life cycle of a material. The entire analysis is referred to as cradle-to-cradle which refers to production from extraction of raw materials, production and delivery and is often broken down into phases of lesser ambition. Goal definition and scoping is the most critical component of LCA because it provides a frame of reference for the entire study and helps define interrelationships among the other three LCA components; inventory analysis, impact assessment, and improvement assessment. The goal definition identifies the overall purpose for the LCA and its intended applications. Goal definition and scoping initiates the LCA and then drives the scope, boundary settings, data categories and data needs. This process is continuously revisited during an LCA. Scoping defines the boundaries, assumptions and limitations and should be done before an LCA is conducted to ensure that the breadth and depth of analysis are consistent with the defined goal of the LCA. Inventory Analysis: It is the most well-developed component of LCA. A completed inventory analysis provides an overview of the life-cycle inputs and outputs associated with a particular system. The results of an inventory analysis may be used to identify areas to achieve improvement, as baseline information for conducting an impact assessment or some combination of the two. This analysis gives the boundaries of the system to be studied and develop a data questionnaire to collect the appropriate data. Develops stand alone subsystem data and conduct a peer review to validate the results. ABS Acrylonitrile -butadiene-styrene is an amorphous polymer consisting of the three monomers (A,B,S) offer flexibility in which acrylonitrile provides chemical resistance, ageing resistance, hardness, rigidity, gloss and melt strength .Butadiene provides low temperature ductitlity,flexibility and melt strength. Styrene provides processing ease, gloss and hardness. The main disadvantages of ABS are its poor solvent and fatigue resistance poor UV resistance, unless protected and maximum continuous use temperature is only around 70 degree centigrade. Phenolics; Phenolic resins are obtained by polymerization and in the preparation of phenolic resins, the mode of catalysis of the resulting resin indicates the overall property characteristics. The phenolic resins have the following features: 1. These resins have excellent thermal behaviour 2. High strength level 3. Mechanical stability 4. Thermal stability 5. Low toxicity 6. Electrical and thermal insulating capabilities 7. Good cost performance characteristics 8. Low heat transfer 9. Excellent flammability performance As these properties are unique and valuable, they are among the most important thermo sets. For many years Phenolics have been used as general non reinforced thermo set plastics in applications such as electrical switches , computer peripherals etc.. These phenolic resins have high crosslink densities so they are quite brittle and have high shrinkage.
Saturday, May 23, 2020
Role of It in Banking Sector - 1223 Words
Role of It in Banking Sector Summary: The article presents a study which aims to analyze the role of information technology (IT) in the banking industry. Based on the article, technological innovations have enabled the industry to open up efficient delivery channels. It is said that IT has helped the banking industry to deal with the challenges the new economy poses. The study also examines the views of bank employees on the implementation of IT in banks. According to the author, private and foreign banks use more IT-related banking services than public sector banks. Excerpt from Article: ROLE OF INFORMATION TECHNOLOGY IN BANKING INDUSTRY Ilyas-Ur Rahman, Osmania University, Hyderabad, INDIA INTRODUCTION I.T. in Banking: 1).â⬠¦show more contentâ⬠¦OBJECTIVES OF THE STUDY: The objectives of the Study are as follows: 1. To assess the Role of Information Technology in the Public Sector Banks, Private Sector Banks and Foreign Banks 2. To Assess the Perception of the Bank Employees towards the Implementation of Information Technology in the Banks 3. To Assess the Perception and Satisfaction of the Customers with the banks. Hypothesis: 1). Information Technology facilitate wide and speedy services to banking sectors. 2). Private and Foreign banks use more Information Technology related banking services then public sector banks. 3). Reliable infra-structure of technology is the major constraint in implementing Information Technology in banks. 4). Impact of technology on efficient low cost data communications is same across all banks. 5). There is a strong association between competition pressure and implementation of IT in banking sector. 6). There is a strong association between more IT related services and customer preferring a bank. 7). Security concerns are the basic hindrance in using Technology related to banking services. LITERATURE REVIEW: Brynjolfsson and Hitt conclude that ââ¬Å"Information Technology contribute significantly to firm level output.â⬠In fact, they find that I.T. capital contributes an 81% marginal increase in output, whereas non-IT capital contributes 6%. Similarly they show that IS-labor is more than twice as productive as non-IS labor. REVIEW OF BUSINESS RESEARCH, Volume VII, NumberShow MoreRelatedRole Of Banking Sector From Personnel Essay3791 Words à |à 16 PagesINTRODUCTION Banking sector viewed from personnel angle has its peculiarities. It is a labour intensive industry and competence of employees has got a bearing on the value of services offered. This being the case, it should have been likely that professionalization of management of personnel should have earned superior precedence but sadly personnel happened to be the most deserted facet of banks management. 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K , Dr. S.Vasantha 3 Research Scholar, School of Management Studies, Vels University, Pallavaram Chennai, India1 Research Scholar, School of Management Studies, Vels University, Pallavaram Chennai, India2 Professor, School of Management Studies, Vels University, Pallavaram Chennai, India3Read MoreIndian Banking : Growth And Trends Essay1298 Words à |à 6 PagesREVIEW OF LITERATURE A. Indian Banking Industry- Growth and Trends in Productivity Singh Jagwant (1993) in his book is concerned with trends and changes in productivity with particular emphasis on employee and branch productivity in the Indian banking industry. It determines the level of productivity and its growth during the period 1969-85. The 22 public sector banks i.e. banks of the SBI group and 14 nationalised in 1969 have been taken up for the study. The study attempts to make cross-sectionalRead MoreIntroduction Of Indian Banking System Essay1206 Words à |à 5 Pages Contents ABSTRACT 2 INTRODUCTION TO INDIAN BANKING SYSTEM 3 INTRODUCTION TO NON-PERFORMING ASSETS 4 CAUSES OF NPAââ¬â¢S 5 LITERATURE REVIEW 6 RESEARCH METHODOLOGY 9 SCOPE OF STUDY 9 OBJECTIVE OF THE STUDY 10 LIMITATION OF STUDY 11 EXPECTED OUTCOME 12 BIBLOGRAPHY 13 ABSTRACT Banks are the most valuable part on any economy. The banks, the interest rates, the borrowings are some of the points to be considered when evaluating any countryââ¬â¢s development. Apart from raising resources through freshRead MoreRole of Financial Institution in Economy1274 Words à |à 6 PagesRole of Banks and Financial Institutions in Economy Money lending in one form or the other has evolved along with the history of the mankind. Even in the ancient times there are references to the moneylenders. Shakespeare also referred to ââ¬ËShylocksââ¬â¢ who made unreasonable demands in case the loans were not repaid in time along with interest. Indian history is also replete with the instances referring to indigenous money lenders, Sahukars and Zamindars involved in the business of money lending byRead MoreBanks Are Caterers For The Economy Of A Country1324 Words à |à 6 Pagesago in Babylonia till the present date, a country s monetary and fiscal matters are controlled through banking. Banking system is one of the many institutions that impinges on any economy and affects its performance for the better or the worse. In what measure a given banking system contributes to economic development depends upon the governing policy of the Government. As a rule, banking systems are adapted to the structure and needs of the particular economy they exist in. Indian economicRead MoreChapter 1 - What Is Shadow Banking? This treatise draws on a number of current researchers on the1200 Words à |à 5 PagesChapter 1 - What Is Shadow Banking? This treatise draws on a number of current researchers on the shadow banking sector, i acknowledge their influences on my thinking and thank them, Melanie Fien, Zoltan Pozsar, Adrian Ashcraft The term ââ¬Å"shadow bankingâ⬠is one that is used by banking regulators, the media and academics especially when coming up with explanations for the financial crisis of 2007-2008. It has become a rallying point for international reform efforts aimed at the unregulated nonbankRead MoreIndian Financial Sector: Focus on Indian Banking Environment1118 Words à |à 5 Pages Introduction - Financial sector overview Indian Financial Sector is a well diversified arena experiencing high growth and development. The financial sector of India is comprised of commercial banks, insurance companies, non-banking cooperations, pension and mutual fund houses and lot more other financial institutions serving the Indian Economy. However, the financial sector is a major ly dominated by the Bankin Sector where the commercial banks comprise of 60 percent of total assets held by theRead MoreRole of Commercial Banks in the Economic Development of a Country:1109 Words à |à 5 PagesRole of Commercial Banks in the Economic Development of a Country: Commercial banks are one of the three primary agents which help circulating funds in the market. Commercial banks provide loans and corporate bonds to the households, new start ups and small medium enterprises to run their businesses. It also obtains money from the households and invests that money to other profitable investments. The money held as customer account then accrues interest which is given to the customer in the form
Monday, May 18, 2020
Supply Chain Management as an Inventory Control Method
Supply Chain Management as an Inventory Control Method: Supply chain management can be described as a means with which companies across the globe are identifying powerful new sources of competitive advantage. This process incorporates all integrated activities that bring products to the market and generate customer satisfaction. Some of the major aspects in supply chain management include purchasing, manufacturing operations, transportation, and distribution in a unified process. Therefore, successful supply chain management processes involves coordinating and integrating all these operations and functions in a flawless process. As part of ensuring effective supply chain management, companies usually incorporate and link various partners in the chain or process. The major partners in the chain include third-party firms, vendors, information system providers, and carriers. Supply chain management is defined as all activities and processes associated with the movement of goods from raw-materials to the end-user product (Zigiaris, 2000). Description of Supply Chain Management: As previously stated, supply chain includes every activity linked to the movement of goods from the raw-materials phase to the end-user stage. The proponents of this business process recognized that vital productivity improves from management of material flow, relationships, and information. Actually, the success and productivity of a business is dependent on the delivery of improved customer andShow MoreRelatedWeek 6 Bus 6501680 Words à |à 7 PagesManagerial Finance I will attempt to show how the supply chain inventory management method can be affected depending on the situation of the retailer. Studying the control method for problems in inventory, which would include both, excesses in inventory as well as shortages, and hoping to minimize loss. Use of SCM as a Method of Inventory Control I have decided to do the final for Managerial Finance on the use of the SCM method as a form of inventory control, because I have worked in a business that hasRead MoreInventory Management1524 Words à |à 7 PagesThe Role of Inventory in the Supply Chain.ââ¬â¢ $1.6 billion, it is an estimation of manufacturersââ¬â¢ and trade inventories in the United States in august 2012 (according to the US Department of Commerce). Inventory represents a significant part of company budgets. They are costly and can be risky, but the company spend a lot of money in inventories because they also provide some security for businesses. But what is exactly the role of inventory? Why it is required and what is its purposeRead MoreInventory Control And Its Effect On The Performance Of The Production Control System950 Words à |à 4 PagesAn inventory management system, inventory control, and inventory accuracy are paramount to a mass production manufacturing facility, especially when multiple part types and multiple product types are being produced. Raw component inventory can account for millions of dollars of an organizationsââ¬â¢ cash, which is not contributing to profitability until converted to a product and sold. Therefore, it is essential for an organization to have an inventory management system and an inventory control processRead MoreWalmart: Planning and Controlling the Supply Chain1471 Words à |à 6 PagesPlanning and Controlling the Supply Chain Introduction Wal-Mart is a retail giant that operates many stores around the world. Its resound market success has a basis on low prices and one stop shopping for a wide variety of goods in their superstores and discount centers. Over the years Wal-Mart has become the worlds largest and arguably the most powerful retailer with the highest sales per square foot, inventory turnover and operating profit of any discount retailer. The organization owesRead MoreCase Study : Supply Chain Management Essay1088 Words à |à 5 Pagescompetitive forces have compelled more manufacturing businesses to improve an efficient supply chain planning for reducing the cost of supply chain. Planning of supply chain is being the critical component of businessââ¬â¢ management. Supply chains have conventionally been split, being unsuccessful to assimilate the business utilities in the chain of logistics process. Such difficulties, as extended order lead times, high inventory costs, and struggle in answering proactive to real time variations, having lowerRead MoreNike s Global Supply Chain Problem1072 Words à |à 5 PagesNikeââ¬â¢s global supply chain problem. Nike had encountered problems with the management of their global supply chain in the past. Nike is an iconic footwear and apparel manufacturer that operates in over 180 countries with reported revenues of $25.3 billion in 2013. Nike currently has 719 factories, employing 990,325 workers in 44 countries around the world. It is the worldââ¬â¢s leading manufacturer and seller of athletic apparel and sports equipment. It takes its name from the Greek goddess of victoryRead MoreEssay about Khalideoq823 Words à |à 4 Pagesto minimize both ordering and inventory costs. You need to provide a recommendation of the optimal order quantity of raw materials to your plant manager. Your objective is to determine the economic order quantity (EOQ). If the annual demand for Ultamyacin at Smitheford is 400,000 units, then the annual carrying cost rate is 15% of the cost of the unit. The product costs $48/unit to purchase, and the product ordering cost is $28.00. Given: Demand or Annual inventory requirement = 400,000 units OrderingRead MoreAn Inventory Management System For A Mass Production Manufacturing Facility962 Words à |à 4 PagesAn inventory management system, inventory control and inventory accuracy are paramount to a mass production manufacturing facility, especially when multiple part types and multiple product types are being produced. Raw component inventory can account for millions of dollars of an organizationsââ¬â¢ cash, which is not contributing to profitability until converted to a product and sold. Therefore, it is essential for an organization to have an inventory management system and an inventory control processRead MoreInventory Management : Forecasting And Replenishment1154 Words à |à 5 PagesInventory Management: Forecasting and Replenishment Efficiently managing the supply chain flow between the vendor and the client plays a critical role in effective supply chain management. Systematic and methodical inventory management and forecasting are pivotal in the supply chain operation. Demand and timing coincide for optimal forecasting. One needs to understand the customer needs and determining the forecasted quantities. Guesswork and hope is not the answer. ââ¬Å"As the term suggests, forecastingRead MoreIHC distribution Center Operations Review on Supply Chain Management, Logistics, and Inventory.955 Words à |à 4 Pagesways that Supply Chain Management, Inventory, and Logistics have been successfully implemented in the Intermountain Healthcare Supply Chain Center. Peggy Lee, Card Program Manager at IHC led the tour in the Supply Chain Center. The goal of IHC distribution center is reduce waste, cost and centralized the high volume supplies in one location and distribute across all their facilities. This gives Intermount ain better control of their inventories and negotiation advantages. Using these methods has had
Monday, May 11, 2020
Engineer of the Brooklyn Bridge Washington A. Roebling
Washington A. Roebling served as the chief engineer of the Brooklyn Bridge during 14 years of construction. During that time he coped with the tragic death of his father, John Roebling, who had designed the bridge and also overcame serious health problems caused by his own work at the construction site. With legendary determination, Roebling, confined to his house in Brooklyn Heights, directed the work on the bridge fromà a distance, watching progress through a telescope. He trained his wife, Emily Roebling, in engineering and she would relay his orders when she visited the bridge nearly every morning during its final years of construction. Fast Facts: Washington Roebling Born: May 26, 1837, in Saxonburg, Pennsylvania.Died: July 21, 1926, in Camden, New Jersey.Accomplishments: Trained as an engineer, served as an officer in the Union Army, with his father worked designing and building revolutionary suspension bridges.Best known for: Overcame injuries, and with the help of his wife Emily Roebling, built the Brooklyn Bridge, which had been designed by his father, John A. Roebling. As work on the enormous bridge progressed, rumors swirled about the condition of Colonel Roebling, as he was generally known to the public.à At various times the public believed he was entirely incapacitated or had even gone insane. When the Brooklyn Bridgeà finally opened to the public in 1883, suspicions were raised when Roebling did not attend the enormous celebrations. Yet despite theà nearly constant talk about his frail health and rumors of mental incapacity, Roebling lived to the age of 89. When he died in Trenton, New Jersey, inà 1926, an obituary published in the New York Times shut down many of the rumors. The article, published on July 22, 1926, said that in his final years Roebling was healthy enough to enjoy riding the streetcar from his mansion to the wire mill his family owned and operated. Roebling's Early Life Washington Augustus Roebling was born May 26, 1837, in Saxonburg, Pennsylvania, a town founded by a group of German immigrants which included his father, John Roebling. The elder Roebling was a brilliant engineer who went into the wire rope business in Trenton, New Jersey. After attending schools in Trenton, Washington Roebling attended Rensselaer Polytechnic Institute and received a degree as a civil engineer. He began working for his fathers business and learned about bridge building, a field in which his father was gaining prominence. Within days of the bombardment of Fort Sumter in April 1861, Roebling enlisted in the Union Army. He served as a military engineer in the Army of the Potomac. At the Battle of Gettysburg Roebling was instrumental in getting artillery pieces to the top of Little Round Top on July 2, 1863. His quick thinking and careful work helped fortify the hill and secure the Union line at a desperate time in the battle. During the war, Roebling designed and built bridges for the Army. At theà wars end, he returned to working with his father. In the late 1860s, he became involved in a grandly ambitious project thought by many to be impossible: building a bridge across the East River, from Manhattan to Brooklyn. Chief Engineer of the Brooklyn Bridge John Roebling, the designer of the Brooklyn Bridge, severely injured his foot in a freak accident while the site of the bridge was being surveyed in 1869. He died of an infection before any major work had started on the bridge. The massive project amounted to a collection of plans and drawings, and it fell to his son to make his vision a reality.à While the elder Roebling was always credited for creating the vision for what was known as The Great Bridge, he had not prepared detailed plans before his death. So his son was responsible for virtually all the details of the bridges construction. And, as the bridge was not like any other construction project ever attempted, Roebling had to find ways to overcome endless obstacles. He obsessed over the work and fixated on every detail of construction. During one of hisà visits to the underwater caisson, the chamber in which men dug at the river bottom while breathing compressed air, Roebling was stricken. He ascended to the surface too quickly, and suffered from the bends. By the end of 1872 Roebling was essentially confined to his house. For a decade he oversaw construction, though at least one official investigation sought to determine if he was still competent to direct such a massive project. His wife Emily would visit the work site nearly every day, relaying orders from Roebling. Emily, by working closely with her husband, essentially became an engineer herself.à After the successful opening of the bridge in 1883, Roebling and his wife eventually moved to Trenton, New Jersey. There were still many questions about his health, but he actually outlived his wife by 20 years. When he died on July 21, 1926, at the age of 89, he was remembered for his work making the Brooklyn Bridge a reality.
Wednesday, May 6, 2020
Experimental Techniques For The Synthesis And...
CHAPTER 2 EXPERIMENTAL TECHNIQUES FOR THE SYNTHESIS AND CHARACTERIZATION OF NANOMATERIALS. In order to explore novel physical properties and phenomena and realize potential applications of nanostructures and nanomaterials, the ability to fabricate and process nanomaterials and nanostructures is the first corner stone in nanotechnology. There exist a number of methods to synthesize the nanomaterials, which are categorized in two techniques ââ¬Å"top down and bottom upâ⬠. Solid state route, ball milling comes in the category of top down approach, while wet chemical routes like sol-gel, co-precipitation, etc. come in the category of bottom up approach. Secondly, characterization of nanomaterials is necessary to analyze their various properties. Therefore, this chapter describes the various methods of synthesis and characterization of nanomaterials. Characterization techniques include XRD, SEM, TEM, EDAX, UV-Visible spectroscopy, FTIR spectroscopy, etc. 2.2. Synthesis of Nanomaterials: Fabrication of nanomaterials with strict control over size, shape, and crystalline structure has become very important for the applications of nanotechnology in numerous fields including catalysis, medicine, and electronics. Synthesis methods for nanoparticles are typically grouped into two categories: ââ¬Å"top-downâ⬠and ââ¬Å"bottom-upâ⬠approach. The first involves the division of a massive solid into smaller and smaller portions, successively reaching to nanometer size. This approach may involve milling orShow MoreRelatedExperimental Investigation on Zirconium Oxide with Engine Oil 20W401534 Words à |à 7 Pagesincreasing availability of methods, synthesis of nanomaterials as well as tools of characterization and manipulation. Nanotechnology makes us to believe that we would have the ability to create anything that we could precisely define. Synthesis of nanomaterials is another key issue. General approaches in synthesizing nanomaterials involve vapour, liquid or solid state routes or their intelligent combinations. Size effects are an essential aspect of nanomaterials. Size effects are of two types: oneRead MoreIs Nanotechnology A Field Of Applied Science?7916 Words à |à 32 PagesChapter 1 Introduction 1.1 Background Nanotechnology is a field of applied science, focused on the design, synthesis, characterization and application of materials and devices at the nanoscale. This is an emerging field which plays a major role in the development of innovative methods to produce new products. Because of its greater role in enhancing the performance of several existing technologies, it is gaining high attention. Properties of materials often change dramatically when size reducesRead MorePreparation Of A Innovative Mixed Matrix Polyethersulfone Membranes By Inserting Graphene Oxide Nanosheets For Wastewater Purification Essay1505 Words à |à 7 Pagesmembrane to be either hydrophobic or hydrophilic and also change the surface charge of membrane to be either electropositive or electronegative, changing operating conditions, and periodic cleaning . Generally, Ultrafiltration (UF) is a widely used technique in the treatment wastewater.. Asymmetric UF membranes can be prepared using a range of suitable polymers, including polysulfone (PSf), polyethersulfone (PES), poly(aryleneethersulfone) block copolymer, cellulose acetate (CA),polyetherimide(PEI),polyimide(PI)Read MoreThe Doping Of Semiconductor By Rare Earth Metal Nanoparticle1754 Words à |à 8 Pagesgel-combustion method. It was found that La can greatly enhance the cytotoxicity and photocatalytic activity of ZnO nanoparticles towards various cell lines and paracetamol drug. These nanoparticles were characterized by various spectroscopic and other techniques which clearly revealed the presence of lanthanum ions. The absorption edge shifts towards the visible region after doping with La ions. This shift shows that the doping of La ions is favorable for absorbing the visible light. The comparative photocatalyticRead MoreTitanium Cerium Ferrite ( Tcf ) Was Prepared By A Simple Solvothermal Method5630 Words à |à 23 Pagesfriendly, simple and effective method for uranium (VI) removal from wastewaters. However, the separation process of adsorbents from aqueous solution after saturated sorption is usually complex and time-consuming. To overcome this difficulty, nanomaterials have been concerned among the scientists and researchers because these materials possess high specific surface areas, plentiful functional groups and abundant sorption sites on their surfaces [magnetic graphene/iron oxides]. ManyRead MoreModeling Of Engineering And Biomedical Sciences9738 Words à |à 39 Pagesmechanical properties, thermal conductivity and electrically insulating property, boron nitride nanotubes and nanosheets have promising applications in the field of engineering and biomedical sciences. Accurate modeling of failure or fracture in a nanomaterials inherently involves coupling of atomic domains of crack, voids as well as deformation mechanism ori ginating from grain boundaries. This review highlights the recent progress made in the atomistic modeling of boron nitride nanofillers. Continuous
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