termed the rule of mixtures. Assumptions 1. 2. 3. 4. 5. 6. Fibers are uniformly distributed throughout the matrix. Perfect bonding between fibers and matrix. Matrix is free of voids. Applied loads are either parallel or normal to the fiber direction. Lamina is initially in a stress-free state (no residual stresses). Fiber and matrix behave as linearly elastic materials. Longitudinal Modulus Equal strain assumption: εc = εf = εm 2 Matrix Fiber σ1 1 σ1 Matrix L Representative Volume Element
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INTRODUCTION a) Background of the Study Ever since man utilized various species of plants for food‚ clothing‚ as medicines‚ fibers and other useful things. In fact‚ the interaction of man and the plants led to the establishment of the so-called traditional knowledge. One should look into the potential impact of the plant which are generally rich sources of many natural products‚ and its ecological environment and the manner on how it could be utilized for significant use for human welfare
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The Apparel Industry: Issues and Solutions 1 Please note: This report focuses on environmental impacts and solutions associated with apparel‚ a second report will present the equally complex social responsibility (SR) issues associated with this industry’s life cycle including fair trade‚ fair labor and animal well-being issues. Published by Labeling Ecologically Approved Fabrics (LEAF) Special thanks to: Coral Rose‚ Founder Eco-Innovations Sustainable Textile Strategies Dr. Gwendolyn Hustvedt-Professor
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and the durability and wrinkle resistance of polyester. Rayon is a “Man-Made Fiber”. Rayon is highly absorbent‚ soft‚ comfortable and drapable. Some Rayons wrinkle easily and become weak when wet. Trademark uses of Rayon are blouses‚ dresses‚ coats‚ suits‚ and lingerie. It is found in a range of woven and non-woven apparel and is also in home furnishing fabrics. To care for this fiber‚ follow care label instructions precisely. Some Rayons may need to be dry cleaned and some are
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as a viable alternative to glass fiber reinforced composites especially in automotive and building product applications. The combination of biofibers such as kenaf‚ hemp‚ flax‚ jute‚ henequen‚ pineapple leaf fiber‚ and sisal with polymer matrices from both nonrenewable and renewable resources to produce composite materials that are competitive with synthetic composites requires special attention‚ i.e.‚ biofiber–matrix interface and novel processing. Natural fiber–reinforced polypropylene composites
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at a crime scene and can be used in cases. However‚ the weight of a given piece of evidence is ultimately decided by a jury. The types of physical evidence include but are not limited to; blood‚ semen‚ saliva‚ documents‚ hair‚ fingerprints‚ paint‚ fibers‚ and drugs. The collection of evidence must be thorough enough to include as many pertinent clues as possible‚ but selective enough not to delay the laboratory. (Saferstein‚ R. 2009) Handling Evidence When handling evidence it must be done to
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milk fabric is new born fabric. The milk protein fabric moistens skin and it is healthy and bacteriostatic - it is the perfect material to produce underwear and socks‚ pants‚ long-sleeve T’s and jackets also. The important ingredients of milk protein fiber are milk casein proteins‚ which can nourish and lubricate the skin. The milk protein contains the natural humectant factor‚ which can capture the moisture and maintain skin’s moisture to make the skin tender and smooth and reduce wrinkles. Its cost
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REFERENCES 9 1. INTRODUCTION: Nanofiber technology is a part of nanotechnology. The major purpose of this technology is to create nanoscale fiber materials which can achieve superior functions. The nanofibers have such good features as flexibility‚ high specific surface area and should have a good directional strength. For these features‚ the nanofibers are used in a lot of applications that
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NCRETE [pic] [pic] ACKNOWLEDGEMENT This project report presents a general preview of “WASTE WATER ENGINEERING”. It gives information of functions‚ types‚ Properties and some design aspects of construction. Regarding this report I would like to express my sincere gratitude of Prof. Amitava Ganguly for providing important information‚ guidelines and acquainting me with the relevant books‚ and websites
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Cotton Chemistry of Cotton Fiber The chemical composition of cotton fibers and the quantity of different constituents vary greatly with the type of plant‚ soil and climate. Row cotton fiber‚ after ginning‚ is essentially composed 94% cellulose. Chemical composition of cotton fiber: Constituents Percent Cellulose 94.0% Protein 1.3 Paretic substances 1
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