نتایج جستجو برای: 18 and 14 rp rice husk
تعداد نتایج: 16939785 فیلتر نتایج به سال:
The development of new fibrous composites with specific properties has attracted a big interest in the development of new technologies. One of the biggest problems in this area is the improvement of the fiber/matrix interface to increase the mechanical properties in the final composite. In this work, surface chemical modifications of the rice husk (by-product of the rice industry) were carried ...
Background and purpose: Rice (Oryzasativa L.) is one the most important staple food in the world. There is an increasing interest for pigmented varieties, due to their antioxidant properties. In this research, the antioxidant activities in different parts of three varieties of rice were studied. Materials and methods: White rice, brown rice, husk, and bran of Fajr, Hashemi and KB13 were extrac...
Poly(vinyl chloride) (PVC) and natural fiber composites were prepared by melt compounding and compression molding. The influence of fiber type (i.e., bagasse, rice straw, rice husk, and pine fiber) and loading level of styrene-ethylene-butylene-styrene (SEBS) block copolymer on composite properties was investigated. Mechanical analysis showed that storage modulus and tensile strength increased ...
Requirement of mineral elements in different plant tissues is not often consistent with their transpiration rate; therefore, plants have developed systems for preferential distribution of mineral elements to the developing tissues with low transpiration. Here we took silicon (Si) as an example and revealed an efficient system for preferential distribution of Si in the node of rice (Oryza sativa...
The high need for polymeric materials and the availability of agro-industrial wastes, such as rice production chain, demand development technologies to obtain composites based on these waste materials. Therefore, this work aims develop using low density polyethylene (LDPE) a polymer matrix husk or ash, prepared by micronization in whirlwind mill, reinforcing fillers. processing was carried out ...
The present study describes the adsorption of textile dye on rice hull. The adsorption parameters were obtained from Langmuir and Freundlich isotherms utilizing linear regression plots to fit the data. The results showed that Langmuir equation was more suitable than the Freundlich one to predict the experimental adsorption isotherms, indicating that the adsorption of dye molecules is localized ...
Background and Aim: Nanotechnology considered as one of the main management strategy in reducing negative effects of water pollution, which leads to treating of water inexpensive and more effective. This study aimed to investigate the removal of Cr and Cu from aqueous solutions using nano-silicate which is synthesized by rice husk. Materials and Methods: In the present study, functionalized ...
The present study was conducted to investigate the chemical composition of rice polishing available in Pakistan used in poultry rations as an energy source. Chemical analysis of 195 samples was done. Overall, 60% samples had either lower or higher percentage of ether extract as compared to reference value (1316%). Large number of samples (41.54%) showed lower value of ether extract (less than 1...
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