...Fiber Ropes And Wire Ropes During this segment we will cover the different types of fiber ropes, such as manila, sisal, hemp, coir, cotton and nylon. We will also discuss the fabrication, care, handling, characteristics and the inspection of fiber ropes. During the wire rope segment, we will discuss the fabrication, fiber core and characteristics of wire rope; wire rope lay, and the safe working capacity of wire rope. Fiber Rope: • Types of ropes • Fabrication • Care • Handling • Characteristics • Inspection Wire Rope: • Fabrication • Fiber core and characteristics • Wire rope lay • Safe working capacity MANILA ROPES The quality of the fiber and its length give manila rope relatively high elasticity, strength and resistance to wear and deterioration. In many instances, the manufacturer treats the rope with chemicals to make it more mildew-resistant, which increases the quality of the rope. Manila rope is generally the standard item of issue, because of its quality and relative strength. Select the INFO button for additional information on the manila fiber rope. Fiber Rope - Sisal The next fiber rope is the sisal fiber rope. Sisal rope is made from either the sisalana or the henequen plant. Sisal rope is about 80 percent as strong as high quality manila rope and is easily obtained. It withstands exposure to seawater very well and is often used for this reason. Select the INFO button for additional information on the sisal fiber rope. Fiber Rope Hemp ...
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...Question #3: In what respects did the use of fiber evidence in the Wayne Williams trial differ significantly from its use in previous cases? Numerous criminal trials over the years have used fiber evidence. In 1936, the wife of a NBC executive was murdered and the killer caught partly due to fibers from twine used to bind her during the murder. Ted Bundy was convicted of the murder of a 12-year old girl partly due to fibers found in his van. The trial of Wayne Williams, also based on fiber evidence, differed from other cases in several significant ways. From July 1979 to May 1981, thirty black children and young men were reported missing or found dead in the area of Atlanta, Georgia. The Georgia State Crime Lab found yellow-green nylon fibers and violet acetate fibers on the bodies and clothing of victims. The fibers from the different victims were generally similar to each other, linking them to a single source and tying them to one killer. The Wayne Williams case was the first time fiber evidence played a significant role in a case involving a large number of murder victims. An Atlanta newspaper wrote an article about several different fibers being located on the bodies. After the article, bodies located in the Atlanta area rivers were nude or clothed only in underwear. The release of the information caused a change in the way the suspect disposed of bodies, in an apparent effort to eliminate fiber evidence. Media attention appeared to result in a change in pattern of...
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...“accidents” we will be focusing on are nylon (yes, the material panty hose are made of), Silly Putty®, and the bouncy ball. Nylon Nylon, a synthetic polymer fiber, was invented by Wallace Hume Carothers at the E.I. DuPont de Nemours Company in Delaware in 1934. Nylon stockings became a huge hit as soon as they were released during World War II after a public supply cut-off. Although Carothers receives recognition for the creation of the polymer, another DuPont employee may the actual inventor. Julian Hill worked with Carothers, and had spent time developing a process where a long fiber with a silky texture could be created of carbon polymers. Carothers may have had a psychological issue, and committed suicide in 1937. The company accredited the invention of nylon to him in honor of him. Nylon was created entirely from petrochemicals unlike previous artificial fabrics like rayon and acetate, which were plant based. Nylon was designed as a synthetic silk for women’s stockings. The material was intended to be less expensive while adding qualities such as strength and insulation. Nylon is not only used in stockings, but is also used in an enormous amount of other products, including basketball nets, carpeting, clothing, fishing line, guitar strings, surgical sutures, tennis racquet strings and vehicle upholstery, among others. Nylon has even been to the moon. On the first trip to the moon, the astronauts wore space suits containing nylon fibers. The flag that Neil Armstrong...
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...CHAN KA HEI 13057598D CHUNG PUI WA 13088021D WONG YAT LUN 13057927D YIM MAN KEI 13059341D Dyeing Cotton & Wool with Direct Dyes Introduction Direct dyes, also called substantive dyes, are popular dyes for dyeing cellulosic fibers such as cotton. It can also be used to dye protein fibers such as wool. The purpose of this experiment is to study the exhaustion and water fastness behavior of three classes of direct dyes (1% Solophenyl Yellow, 1% Cuprophenyl Red & 1% Cuprofix Blue) when used on cotton and wool fabrics. Materials: 3 pieces of 2g bleached cotton fabric 3 pieces of 2g scoured wool fabric Stock solutions: 1% Soda Ash | | 1% Solophenyl Yellow | (Class A dye) | 1% Cuprophenyl Red | (Class B dye) | 1% Cuprofix Blue | (Class C dye) | Recipes: The liquor ratio of the dye baths to be 50 : 1 and the final dyeing temperature to be 95°C. Dye/Chemical | Bath 1 | Bath 2 | Bath 3 | Class A dye(1%) | 2% | --- | --- | Class B dye(1%) | --- | 2% | --- | Class C dye (1%) | --- | ---- | 2% | Soda ash | 0.5% | 0.5% | 0.5% | Common salt | 20%(added in 1 portion) | 20%(added in 2 equal portions) | 20%(added in 4 equal portions) | Calculation of the amount of chemicals for each dye bath: 1. | Volume of liquor (2g material with LR of 50:1) | == | 2 x 50100ml | | | | | 2. | Volume of Class A, B, C dyes | = | In 2 g, 2% is 0.04 g. As 3 classes are using 1% stock solution, it needs 4 mL. | | | | | 3. | Weight of common salt...
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...used to shape these different types of brushes are quite different. The injection-molding machine deposits liquid plastic into the mold and then pushes the handle out of the mold once the handle is solidified. Multi Injection. For multicolored brushes, there will be two-stage injection process as described below: When the pre-injection is completed, the mold slides open with the handles still attached to it. Then the mold rotates 180° and closes so that the brush handles now face another die / cavity which can inject different shape and different color on to the handles. EMM2512_ICA02_1 Bristling. After the handles are formed, a filling machine is used to attach the bristles. In modern toothbrushes, these are made from nylon or plastic. The filling machine pushes the bristles into holes in the head of the handle and then...
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...Introduction The staining test is a test for fiber identifycation. The test aims to identify four fiber contents of samples. It is to distinguish four fiber samples A, B, C and D from cotton, wool, polyester and nylon. The principle of that is to make use of small tuft of fiber samples and treated it with staining agent by dyeing it at short time. When different types of fibers are treated with staining agent, they will produce different coloration due to the differential of fibers construction and degree of staining agent uptake. The chemical composition, morphological structure and reativity of fibers differ from each other leading them to have particular affinity for specific staining agent. Test procedure i. At first, fiber sample A is taken for test. ii. Put the sample in the beaker with shirlastain A at 2 minues with tweezer and use glass rod to stir the fiber sample soaked into the staining agent thoroughly under room temperature.. iii. Take out the sample from the staining agent with tweezer and rinse it with cool water to wash out any excess staining agent from fiber surface. iv. Examine the fibres for staining and compare the color of the fiber sample with the samples. Observation of experiment i. During the experiment, when fiber sample A immersed into the staining agent, it is hard to soak thoroughly. While it keeps the better amount of staining agent after rinsing. Thus, it obtained the deepest color result. ii. When fiber sample B immersed into the...
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...HUM2020 24 March 2015 Golden Caps Shrooms are a lot more appealing to the eye than I always thought them to be. My girlfriend Sam and I got ahold of some hydroponic mushrooms and it is our first time doing them. We have to chew and swallow them. I hate mushrooms anyway so this is a real treat for me. After washing down the taste of dirt with some fruity juice, we wait for the effects. Sam and I are in the tent put up in our front yard, and I am tripping balls. Tonight is mildly windy – a perfect night to be in a tent under the influence of hallucinogens. The nylon walls of the tent are breathing; laughing along with Sam and I. Everything is alive and wants to play with me. The blue tent floor is a rippling wave and I am walking on water. We have colored water speakers that are blasting; groovy tunes aid in tripping. We hooked up our Christmas lights up inside the tent to boost the mood as well. From the outside, it looks as if we have our own party tent! I am expecting to see Sam’s face melt off or have my spirit animal visit me in some crazy tie-dye visual; and a come down that will make me not want to eat these wretched things again. Stepping outside of the tent to smoke a cigarette, I am slapped in the face with the pure beauty of the night. This euphoric sense of wellbeing consumes me. The stars twinkle brighter – beaming their light directly down onto me letting me know I am not alone. The wind is roaring, demanding the trees to bend and the leaves...
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...-- Prof. -- English 101 26 August 2015 Unfulfilled Desires In "A Pair of Silk Stockings," Little Mrs. Sommers shows a slight dilemma that finally becomes a responsive expression of her ambition to return to a past that she can no longer have, reversing her hidden craving for the freedom and independence that she does not have while under the burdens of debt. She is a perfect example of how humans are seduced by material gain, "the life of luxury", and the savage way society judges things (or people). Society views people who live in the loop of luxury as "gods", they are above those who are not so wealthy. Anyone can fall casualty to this common societal problem, even honest "Little Mrs. Sommers". This is visible when she can feel the fifteen dollars in her porte-monnaie and she says "it gave her a feeling of interest such as she had not enjoyed for years". Mrs. Sommers does not simply aspire to wealth in the appearance of those who have never had money; instead, as Mrs. Sommers's neighbors note, she has in fact seen good days and possibly equates her youth with simple extravagance such as silk stockings and kid gloves. The second element of Mrs. Sommers's ambition for her desire purchases relates to her need to allege personal autonomy. As Chopin enacts at the beginning of the story, Mrs. Sommers has several kids to feed and clothe, and her first thoughts for spending her money come precisely from the need to skimp and save every piece of her money. Although fifteen...
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...tensile strength of various polymers. These tests were done to determine the material properties, such as modulus of elasticity and the ultimate strength. The polymers that were tested were an acrylic and a nylon sample. Each specimen was placed in a tensile test machine and placed under load until failure. This is an important test because polymers are very lightweight and strong materials and it allows uses for them to be discovered by knowing their tensile strength. After the testing the data showed that the acrylic sample had a higher ultimate strength than the nylon sample. Table of Contents Title | Page No. | Introduction | 3 | Experimental Apparatus and Procedure | 4 | Results | 8 | Discussion | 10 | Conclusion | 10 | References | 10 | Homework | 11 | List of Nomenclature -Engineering Stress -Engineering Strain -Modulus of Elasticity -Ultimate Strength List of Figures and Tables Title | Page No. | Figure 1—Specimen Load Sample | 4 | Figure 2—Instron Machine | 4 | Figure 3—Nylon Stress Strain Curve | 5 | Figure 4—Acrylic Stress Strain Curve | 5 | Figure 5—Stress Strain Curve of Different Materials | 8 | Table 1—Acrylic Measurements | 4 | Table 2—Nylon Measurements | 4 | Table 3—Acrylic Properties | 6 | Table 4—Nylon Properties | 6 | Introduction There are many materials which are used in the world today in which they are specifically designed for a certain task. An example of these materials are called polymers....
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...Abstract In this lab, we synthesize three types of polymers including the Nylon 6,10. During the process, observations of the physical characteristics and appearance are taken. Subsequently, these properties are discussed and related to the structure of the reactants used, and the products formed. Lab 1 Report Condensation polymers are the type of polymers formed through condensation reactions, in which molecules join together with the release of small products such as water and methanol. Condensation polymerization plays an important role in our lives since many of the products we use and rely on are prepared through these reactions. Our choice of polymer-based products in our lives depends on the properties of the polymers and the way we want to utilize them. Therefore, it became necessary to have the techniques and the knowledge of how to produce polymers with the specific properties needed for ultimate performance. In this lab, we prepare a variety of polymers and observe their properties. After that, a discussion is made of the reasons behind the differences in their characteristics. We began the procedure by choosing between reacting either ethylene glycol or glycerin with phthalic anhydride. Our group had the choice of glycerin. We added 1.00 g of phthalic anhydride into a test tube. 50 mg of sodium acetate was added to the tube as a catalyst. Then we added 0.4 ml of glycerin to the mixture to start the reaction. The test tube was heated using an alcohol...
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...Competitive Advantages Riordan Manufacturing, Inc. is a corporation that focuses on the manufacturing of fans, plastic bottles, and plastic injection molding. Over the years Riordan Manufacturing Inc. has managed to expand its business into several cities and also around the world. A company who has a similar background is IKEA. IKEA has expanded its business to around the world branding itself as a household name. One way IKEA has a better competitive advantage over Riordan Manufacturing Inc. is the cost leadership strategy. IKEA has managed to sustain its operation by creating a product that is unique and which appeals to the masses but yet it is very cost effective to the consumers. Riordan Manufacturing has been able to stay in business due to the differentiation strategy but it could continue to grow globally and ensure its long term success by focuses on how it can reduce costs and pass that savings to the end users. IKEA has also used the cost focus strategy which has propelled its popularity and success globally. Using this method, IKEA has been able to identify a certain need in specific areas of the world and designed its furniture according to the style preference of that area while still keeping costs low and providing the savings to the end user. Riordan Manufacturing, Inc. could use this strategy to expand its products or manufacturing capabilities to specific groups of clientele around the world and beat out the competition cost wise. References ...
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...Claudia S. Silva A01139056 Case. DuPont Kevlar Aramid Fiber Industrial. The DuPont’s major core has been the creation and innovation of fibers for several uses, such as Lycra spandex fiber, diverse polyester forms, Nomex Aramid fiber and Qiana nylon. The invention of Kevlar brought a new market cluster for DuPont to develop, and that one is the tire and aerospace industries. The important assumptions to have in consideration before making a decision is to first know who your market target is, who your competition is, and the pros and cons to start to develop a niche in this industry, for that I mean, what would be the production cost and what would be the selling cost, knowing those data, you can estimate the profit for a certain period, and with that, you can know if its profitable to start in this area. It’s important to understand, before starting a business to have the whole thing strategically planned. To have a good innovation starting I would say you need to try to develop in a market pull instead of technology push. With this, is easier to get your technology out there and sell it for sure, because the market is already there waiting for something to solve their problems. Returning to the part of “to have to whole thing strategically planned”, it is needed to be said that, part of that plan is to know who your market is, as it was said before. Being a fiber product, in the first line of costumers, it can be said that the market attended would be car’s business (for...
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...E.I. du Pont de Nemours and Company Jeffery D. Mack HRM / 531 Instructor: Dr. Lloyd Polen, PH.D. November 7, 2012 The Process Founded in 1802 by E.I. du Pont, E. I. du Pont de Nemours and Company, or DuPont, is a landmark in the global science and engineering community. As a current Fortune 500 Company, DuPont has been responsible for the innovation and/or manufacturing of black powder, dynamite, neoprene, rayon, and nylon (E.I. du Pont Nemours and Company, n.d., p. 1). With a vision to be the world’s most dynamic science company, DuPont strives to recruit, select, and retain the world’s most sought after talent. In this paper, Jeffery Mack and Geoff Varell will review DuPont’s potential recruitment and selection process when hiring for one of their key positions, Compensation and Benefits Manager, in their efforts to achieve their vision of “…creating sustainable solutions essential to a better, safer and healthier life for people everywhere” (E.I. du Pont Nemours and Company, n.d., p. 1). Selection Process “In DuPont, recruitment is based on matching competencies identified for the job (and it’s future state) with those exhibited by the candidate” (Bhargava, 2006, p. 1). Once an effective communication mean has been reach between the company and the candidates, DuPont uses a competitive selection process to match candidates with the desired qualifications. “While hiring is driven by business requirements...
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...Polycaprolactam Student Name: Syed Ali Shahid, ID Number # 20595181; email: sashahid@uwaterloo.ca 1. Introduction and Applications Polycaprolactam or PA 6 is a synthetic polyamide commonly recognized by its trade name Nylon 6. Polyamides or nylons are polymers characterized by the amide group –CONH-as recurring part of their polymer chain. The original nylon was first made in a laboratory in DuPont, USA in 1935 by Wallace Carothers. It was recognized as the first semicrsytalline polymer, the first engineering thermoplastic, and the first synthetic fiber .Amongst various variants of polyamide, polycaprolactam is particularly different in that it is made from only 1 kind of monomer- caprolactam which will be discussed in this paper in further detail from various aspects. Schalak while working on polyamides in IG Fabraen laboratory synthesized polycaprolactam through ring opening polymerization of caprolactom. He heated caprrolactam in a flask to about 250oC with about 5-10% water which hydrolyzed a few percent of the caprolactam to aminocaproic acid. The NH2 group of the aminocaproic acid acted as ring opening initiator for polycaprolactam followed by a polycondensation reaction of the NH2 and COOH group of the low molecular weight product of the ring opening polymerization reaction resulting in a high molecular weight product-Polycaprolactam. The key properties of polycaprolactam that have made them suitable for a variety of industrial applications are toughness, fatigue...
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...Mr. X Head of the SME division, Brac Bank Limited Dhaka, Bangladesh Dear Mr. X: In order to seek finance for my business, I am writing to you. For my new business which involves producing and selling banana-fiber related products, I need you to join hands with me with some cash from your bank. I have the confidence to state that my newly-established company has the potential to maintain your interest. BestFiber Bangladesh, a company intending to become born- global right from the start, is designed to take advantage of the market opportunities present throughout the world with high quality and diversified product portfolio produced from fiber extracted from banana stem. This business being relatively new has the potential to become a high- growth yielding one as there is no such domineering firms with similar businesses as is found in other industries. I strongly believe that, of course I have the necessary backing tools here, Bestfiber with its professional approach to branding and marketing and high- quality machines for production can leverage the opportunities present for this industry. Though starting with small- scale manufacturing, the company has the plan to grow big and enter into associated businesses with strength gained from the earlier operation. We currently require8,500,000taka that will be used to finance the purchasing of infrastructure like land at Bonpara,Natore, office space at Dhaka, machineries import, worker recruitment and training and other...
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