نتایج جستجو برای: plant fibres
تعداد نتایج: 410661 فیلتر نتایج به سال:
Fibres from annual plants are a sustainable alternative to glass fibres in composite manufacturing. However, both synthetic fibres, such as carbon and cellulosic exhibit heterogeneities along their lengths, which appear localised morphological misorientations known kink-bands. In plant kink-bands occur due growing conditions under abiotic stress during the retting stage fibre extraction process...
OBJECTIVES The relation between lifetime cumulative exposure to asbestos, pathological grade of pulmonary fibrosis, and lung burden of asbestos at death, was explored in a necropsy population of former workers in a chrysotile asbestos textile plant in South Carolina. METHODS Estimates of cumulative, mean, and peak exposures to asbestos were available for 54 workers. Necropsy records and lung ...
rutting in asphalt concrete is a very common form of distress in asphalt concrete pavement which unfortunately has been incurable to date. one of the prime reasons of rutting is attributed to the behaviour of asphalt binder at elevated temperature. this study has investigated the performance of polypropylene fibres modified asphalt concrete mix against rutting. two types of asphalt concrete sam...
Prompted by environmental legislation and citizens’ awareness induced global warming effects, the market for plant-fibre reinforced composites has been growing steadily past 10–20 years, as observed substantial increase in academic industrial research developments. However, transition to larger production still requires several uncertainties be overcome. Among these uncertainties, defects plant...
The plant hormone auxin (indole-3-acetic acid, IAA) has a crucial role in plant development. Its spatiotemporal distribution is controlled by a combination of biosynthetic, metabolic and transport mechanisms. Four families of auxin transporters have been identified that mediate transport across the plasma or endoplasmic reticulum membrane. Here we report the discovery and the functional charact...
We describe preparations of plant cell walls and polysaccharides obtained from plant cell walls that are added to food products for two purposes: as modifiers of food texture and/or as dietary fibres with potential health benefits. Although a number of different types of plant cell walls occur, only some are presently exploited. Commercial ‘fibre preparations’ range from those containing mostly...
Volume fraction of fibres (A), aspect ratio of fibres (B) and fibres orientation (C) are considered as control factors in the determination of hardness strength, hardness strength of plantain fiber reinforced polyester composites (PFR P). These properties were determined for plantain empty fruit bunch (PEFB) and plantain pseudo stem (PPS). Hardness tests were conducted on the replicated samples...
cotton fibres were subjected to cleaning process and then characterized for maturity. decrystallisation and swelling processes with caustic soda, ethanol, propan-2-ol and trichloroethene on the native fibres were carried out. the effects of these on the strength and moisture regain were investigated. the activation energies of the dyeings were also analysed with durazol scarlet red 4 bas. the r...
Oroxylum indicum (Linn.)Vent. is one such plant which is extensively used in the Indian systems of medicine as an important ingredient of “Dashmula” and in the treatment of many diseases. Proper identification of the drug is desired for obtaining its complete therapeutic effects. It is with this aspect in view the present study dealing with pharmacognostical study and some other related studies...
As plant fibres are increasingly used in technical textiles and their composites, underlying principles of wound healing in living plant fibres are relevant to product quality, and provide inspiration for biomimetic healing in synthetic materials. In this work, two Linum usitatissimum cultivars differing in their stem mechanical properties, cv. Eden (stems resistant to lodging) and cv. Drakkar ...
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