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AS and A Level: Design and Technology

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  1. Textiles essay on environmental factors, product life, manufacturing methods and maintenance in relation to products

    Pollution could also be created from chemical dyes which might be used to dye products such as t-shirts, so both designers and manufacturers need to take into consideration the pollution creating from dyeing these products. The environmental conditions of factories also play a part in environmental consideration for designers and manufacturers. This is because if environmental conditions in a factory are bad then this might make a product buyer less likely to want to buy the product if the labour conditions in factories are bad and unethical to the factory workers.

    • Word count: 1704
  2. Multidisciplinary approaches in ergonomics

    The nurse gives emergency care, prepares accident reports, and arranges further treatment or care if required. They also assess work environments for potential or actual health problems. Their contribution to redesigning an assembly or packing line would be in the form of supplying valuable data from incident and accident reports that identifies hazards relating to the existing equipment (Lloyd, 2002; Quinlan & Bohle, 1991; Sanders & McCormick, 1993). Responsible for preventative modification of the working environment has generally been assigned to occupational hygienists, engineers, and ergonomists. Occupational hygiene is an environmental science concerned with physical, chemical, and biologic hazards to the worker.

    • Word count: 1091
  3. Describe the Benefits of Mobile Technology.

    Doubtlessly, enhanced mobile technology is a golden opportunity for all humans to get the utmost enjoyment of life in comfort. Initially, the latest technology lets people do what they cannot imagine. For instance, they are able to connect to the Internet at far greater speed through wireless service and make video calls on their mobile phones with ?3rd Generation (3G) Technology?. Moreover, 3G also enables them to use their phones for entertainment purposes as well. That is, they can watch and download videos as if they were using their laptop computers.

    • Word count: 535
  4. Uses For Polymers - my bullet proof vest design.

    Amazingly, Block-Tex even prevents blades piercing through and shrapnel from explosions. Manufacturing Block-Tex Chloride is synthesized in solution from the monomers 1,4-phenylene-diamine (para-phenylenediamine) and terephthaloyl chloride in a condensation reaction yielding hydrochloric acid as a by product. The result has liquid-crystalline behaviour, and mechanical drawing orients the polymer chains in the fibre's direction. Cracking will be featured in the creation of Block-Tex so it can break down molecules that are complex. Heavy hydrocarbons may also be broken down into simpler molecules by the breaking of carbon-carbon bonds in the precursors. The polymer will not be created to be monounsaturated because that may mean that only one double bond in the whole hydrocarbon will be able which wouldn’t work as this invention would need more than one.

    • Word count: 1354
  5. The Differences and Assimilation of Chinese and American Diet

    Frying is divided into deep frying, light frying, one side frying and slippery frying, and a few types of stir-frying; this method mainly deals with vegetables. One cooking method that American dishes seldom use is steaming. It is a kind of slow process and time consuming. Chinese cooking uses two methods of steaming, which are basic steaming and pot steaming which is placing a smaller pot inside of a bigger pot to steam. The product is usually extremely soft because the pot is dipped in boiling water for two to three hours.

    • Word count: 2424
  6. Describe the performance of characteristics of eggs.

    Coagulation is the process in which proteins change from their natural liquid state into a gel or a solid. This happens because each protein molecule is constructed from long chains of amino acids joined by peptide bonds. The bonds are weak and when heat, acid or mechanical action is applied they start to break. The changes are permanent. When the protein changes it physical structure when it coagulates is called denaturation. Syneresis can occur when the egg is overcooked. This is when the texture becomes porous as the protein shrinks and pockets of water are left in the product.

    • Word count: 795
  7. Explain the fundamental ways in which technical textiles and smart fibres differ. Using examples explain how these two types of textiles can benefit users in the 21st century.

    Some other technical textiles are Scotchlite, electronic textiles, the smart bra, microfibres, Nano-fibres and Skintex skincare. Smart fibres have been developed to provide functions that will respond to and protect our bodies. They can be said to be 'intelligent' because of their ability to react to external stimuli or changes in the environment without human intervention. Smart fibres are split into four categories; Biomimetic fibres that mimic nature, Shape Memory textiles, Sense and Track fibres and Chromatic fibres. Biomimetic fibres mimic good design in nature; some of these include Fastskin by Speedo and a fabric by Stomatex.

    • Word count: 656
  8. Advantages of CAD against traditonal methods of design.

    Dimensioning is vital for designers as it gives the proportion for the model which on cad can be drawn to real size without using scales to shrink the design for paper which can cause problems later. Dimensions can be added in an instant with two clicks. Many modern cad packages automatically dimension drawings to certain international standards like ISO 8888 or ISO128. ISO stands for the international organisation for standardisation. Existing designs can be easily edited or modified to insert new dimensions or parts, copies of designs can be individually edited to produce two different versions of the product from the same parent design.

    • Word count: 872

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