Ground cover fabrics

Geotextiles are the most commonly used fabric product for ground cover. Ground cover fabrics can be used in outdoor areas, greenhouses, gardens, nursery farms, orchards, vineyards, and other areas. These fabrics are light weight, flexible, permeable, and durable. 

Major applications for PL A fibres and non-wovens include clothing and furnishings such as drapes, upholstery and covers. Some interesting potential applications include household and industrial wipes, diapers, feminine hygiene products, disposable garments, and UV resistant fabrics for exterior use (awnings, ground covers). 

Radome Also called radiation dome. It is a cover for a microwave antenna used to protect the antenna from the environment on the ground, underwater, and in the air (aircraft nose cone, etc.). The dome is basically transparent to electromagnetic radiation and structurally strong. Different materials have been used such as wood, rubber-coated air-supported fabric, etc. The most popular is the use of glass fiber-TS polyester RPs. The shape of the dome, that is usually spherical, is designed not to interfere with the radiation. 

Researchers have been exploring a variety of ways in which piezoelectric sensors can be used to help solve such problems. For example, composite fabrics have been developed for use as seat covers in which piezoelectric fibers are embedded in a ground material. The fibers detect the position a person takes on the seat, the person s weight, and any changes the person makes while seated in the car. This information can be used to determine whether an airbag needs to be deployed and, if so, to what pressure it should be inflated. 

We have covered considerable ground in this chapter discussing methods used to produce a wide array of polymer products. For any of these products to be useful, the polymers used in fabricating them must possess a set of... 

The sample disc is contained in a chamber formed from two nonmagnetic stainless steel parts, base and chamber cover. The vapor escapes from the chamber through a small hole (of accurately determined area and thickness) directly under and about 4 mm. from the collection surface. The collection surface, which is ground flat and polished, is the bottom surface of a well containing the coolant which is normally liquid nitrogen. This glass apparatus was fabricated from a section of standard... 

Contamination of austenitic stainless steels of the 300 type by compounds which can alter the physical or metallurgical structure and/or properties of the material is avoided during all stages of fabrication. Painting of 300 series stainless steels is prohibited. Grinding is accomplished with resin or rubber-bounded aluminum oxide or silicon carbide wheels which were not previously used on materials other than austenitic alloys. Outside storage of partially-fabricated components is avoided and in most cases prohibited. Exceptions are made for certain components provided they are dry, completely covered with a waterproof material, and kept above ground. 

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