Results 11 to 20 of about 16,058,836 (348)

The chemical composition of the Sun [PDF]

Astrophysics and Space Science, 2009
We present a redetermination of the solar abundances of all available elements. The new results have very recently been published by Asplund et al. (Annu. Rev. Astron. Astrophys. 47:481, 2009).
M. Asplund, N. Grevesse, A. Sauval, Pat Scott   +3 more
semanticscholar   +17 more sources

Chemical Composition of Kombucha

Beverages, 2022
Kombucha is a fermented sweetened tea with a mixed fermenting culture of yeast and acetic acid bacteria. While the history of kombucha is not completely clear, it is now available around the world and has shown an increase in availability and demand in ...
Peyton Bishop, Eric R. Pitts, Drew Budner, Katherine A. Thompson-Witrick   +3 more
doaj   +2 more sources

Tracking Daily Concentrations of PM2.5 Chemical Composition in China Since 2000

Environmental Science & Technology, 2022
PM2.5 chemical components play significant roles in the climate, air quality, and public health, and the roles vary due to their different physicochemical properties. Obtaining accurate and timely updated information on China’s PM2.5 chemical composition
Qingyang Xiao, Guannan Geng, Yixuan Zheng   +2 more
exaly   +2 more sources

Chemical composition of snakes.

PLoS ONE, 2022
The present study was carried out to provide insight into the body composition of snakes, which is an important basis for determination of nutrient requirement and physiological processes.
Petra Kölle, Linda F Böswald, Annita Brenner, Ellen Kienzle   +3 more
doaj   +4 more sources

An Overview of the Chemical Composition of Biomass

Fuel, 2010
An extended overview of the chemical composition of biomass was conducted. The general considerations and some problems related to biomass and particularly the composition of this fuel are discussed.
Stanislav V Vassilev, Lars K Andersen, David Baxter   +2 more
exaly   +2 more sources

Preparation and Separation Properties of Electrospinning Modified Membrane with Ionic Liquid Terminating Polyimide/Polyvinylpyrrolidone@Polydopamine

Membranes, 2022
In this paper, superhydrophilic polyimide (PI) membranes were prepared using the electrostatic spinning method, capped with a hydrophilic ionic liquid (IL), and blended with polyvinylpyrrolidone (PVP).
Peng Qi, Hongge Jia, Shuangping Xu, Qingji Wang, Guiming Su, Guoxing Yang, Mingyu Zhang, Yanqing Qu, Fuying Pei   +8 more
doaj   +1 more source

The Chemical Composition and Health-Promoting Benefits of Vegetable Oils—A Review

Molecules, 2023
With population and economic development increasing worldwide, the public is increasingly concerned with the health benefits and nutritional properties of vegetable oils (VOs).
M. Tian, Yuchen Bai, Hong-Yu Tian, Xuebing Zhao   +3 more
semanticscholar   +1 more source

Synthesis of a novel phosphate-containing ligand rhodium catalyst and exploration of its optimal reaction conditions and mechanism for the polymerization of phenylacetylene

Heterocyclic Communications, 2023
Due to the chemical properties of Group VIII transition metals and their importance in catalytic processes, the reactions of rhodium and its neighboring organic complexes have received much attention as model systems.
Zhang Mingyu, Tang Yuqi, Xu Rui, Yan Dong, Xu Shuangping, Qu Yanqing, Xu Jingyu, Jia Hongge   +7 more
doaj   +1 more source

Synthesis of rhodium catalysts with amino acid or triazine as a ligand, as well as its polymerization property of phenylacetylene

Heterocyclic Communications, 2022
Three novel rhodium complexes, with l-tyrosine (l-Tyr), l-arginine (l-Arg), or 2,4-diamino-6-phenyl-1,3,5-triazine (Dpt) as a ligand, named as [Rh(cod)(l-Tyr)], [Rh(cod)(l-Arg)], and [Rh(cod)(Dpt)2], respectively, had been synthesized for catalyzing the ...
Xu Rui, Zhang Mingyu, Zhang Yuyan, Jia Hongge   +3 more
doaj   +1 more source

Analysis of the chemical composition of natural carbohydrates - An overview of methods.

Food Chemistry, 2022
Natural carbohydrates are gaining importance over a wide spectrum of human activity due to their versatile functionalities. The properties of carbohydrates are currently used in many branches of industry and new possibilities of their utilization, like ...
Magdalena Kurzyna-Szklarek, J. Cybulska, A. Zdunek   +2 more
semanticscholar   +1 more source