نتایج جستجو برای: chemical material

تعداد نتایج: 718865  

H. Bousseboua R. Bodas S. López S. Medjekal,

The nutritive value of Ceratonia siliqua and Gleditsia triacanthos pods was determined on the basis of their chemical composition, in vitro gas production and rumen fermentation end-products. Medicago sativa was used as a reference feed material. The studied samples showed differences in chemical composition and phenolic compounds. Crude protein (CP) content was particulary low (80 g/kg DM) in ...

Anita Shafaroudi Hamid Ghanbari- Tuedeshki Hamid Reza Hafizi-Atabak Javad Safaei-Ghomi Mahdi Akbari Mojtaba Shariaty-Niassar,

Cellulose wastes of a wood and paper factory were used to produce activated carbon. Several chemical agents under various conditions were used for production of activated carbon and hence their adsorption properties have been evaluated. In addition the effect of process parameters such as raw material, chemical agent concentration, impregnation ratio, carbonization temperature, carbonization ti...

2006
Daniel C. Olk

Chemical extractions of soil organic matter (SOM) have not been widely used to elucidate the dynamics of SOM in field settings, especially to address issues of nutrient cycling. To illustrate potential applications of chemical extractions to nutrient issues, this report reviews studies in which the extraction of SOM fractions was based on their binding to polyvalent soil cations. Radiocarbon ag...

2016
Juvenal Yosa Reyes Sebastian Brickel Oliver Unke Tibor Nagy Markus Meuwly

1 Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics. This journal is © the Owner Societies 2016

Journal: :jundishapur journal of microbiology 0
somayeh talebi 1department of microbiology, karaj branch, islamic azad university, karaj, ir iran azar sabokbar 1department of microbiology, karaj branch, islamic azad university, karaj, ir iran; department of microbiology, islamic azad university, karaj branch, karaj, ir iran.tel: + 98-2634182454 majid riazipour applied microbiology research center, baqiyatallah university of medical sciences, tehran, ir iran; department of parasitology and mycology, school of medicine, baqiyatallah university of medical sciences, tehran, ir iran mohsen saffari department of health education, school of health, baqiyatallah university of medical sciences, tehran, ir iran

results based on these findings on agar diffusion with (p = 0.764), mic and mfc tests (p = 0.879), there were no significant differences between the antifungal effect of herbal and chemical mouthwashes. conclusions this study showed that, chemical mouthwashes acted better than herbal mouthwashes and among different chemical mouthwashes, oral b was most effective. objectives the aim of the curre...

A carbon nanotube (CNT) is a miniature cylindrical carbon structure that has hexagonalgraphite molecules attached at the edges. Nanotubes look like a powder or black soot, but they'reactually rolled-up sheets of graphene that form hollow strands with walls that are only one atom thick.Carbon nanotube has been one of the most actively explored materials in recent year(s) due to...

2013
Jerome Niogret Nancy D. Epsky Raymond J. Schnell Edward J. Boza Paul E. Kendra Robert R. Heath

Chemical analyses were conducted to determine the qualitative and quantitative differences in monoterpenes and sesquiterpenes in plant material from avocado trees, Persea americana Mill. (Lauraceae). The initial study analyzed plant material sampled from the trunk to the leaves through different branch diameters to quantify proximo-distal spatial differences within a tree. All trees were seedli...

Journal: :Nanoscale 2013
Zaixing Jiang Qiang Li Menglin Chen Jingbo Li Jun Li Yudong Huang Flemming Besenbacher Mingdong Dong

Graphene oxide (GO) with extraordinary chemical, thermal and mechanical properties offers possibilities in a variety of applications. Many materials have been fabricated through physical blending of GO with other materials, while, the chemical functionalization of GO has generally been considered challenging. Here, we report the preparation of a novel GO-functionalized fibrous material in which...

Journal: :Physical chemistry chemical physics : PCCP 2013
Ajit K Katiyar Arun Kumar Sinha Santanu Manna Rakesh Aluguri Samit K Ray

The paper deals with the fabrication of a p-CuS-n-Si nanocone heterojunction based highly sensitive broad band photodetector. Cone-like one dimensional Si nanostructures formed by metal assisted chemical etching, with superior antireflection characteristics have been used as templates for fabrication of the heterojunction. Covellite CuS material was synthesized by a simple chemical reaction for...

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