Results 21 to 30 of about 1,168,560 (301)

Provenance and Tectonic Setting Discrimination and Their Effects on the Pore-Scale Fluid Flow of Black Shale: Take the Micangshan Tectonic Belt, Central China, as an Example

open access: yesGeofluids, 2023
The Lower Paleozoic reservoir in the Micangshan tectonic belt is a new shale gas exploration area with excellent potential. However, the black shale’s sedimentary environment and tectonic setting and their effects on pore-scale fluid flow have not been ...
Tao Tian   +5 more
doaj   +1 more source

The Effect of Acidized Sodium Silicate on Flotation Separation Behavior of Barite and Dolomite

open access: yesKuangchan zonghe liyong, 2022
Effects of different degree of acidification water glass on the floatability of barite and dolomite as well as its possible principle of action were studied by means of single mineral flotation, solution chemical calculation, Zeta potential test and ...
Haiyong Jiang   +4 more
doaj   +1 more source

Origin and Circulation of Springs in the Nangqen and Qamdo Basins, Southwestern China, Based on Hydrochemistry and Environmental Isotopes

open access: yesGeofluids, 2022
The Nangqen and Qamdo (NQ-QD) basins in China have very rich geothermal and brine resources. The origin and spatiotemporal evolutionary processes of its hot and saline springs however remain unclear.
Xiwei Qin   +12 more
doaj   +1 more source

SHALE OIL RECOVERY FROM OIL SHALE SLUDGE USING SOLVENT EXTRACTION AND SURFACTANT WASHING; pp. 269–287 [PDF]

open access: yesOil Shale, 2015
Shale oil recovery from oil shale sludge can reclaim secondary energy source and has drawn widespread attention in recent years. In this study, three oil recovery approaches, namely surfactant washing, solvent extrac­tion, and the combination of the two
HONG QIN   +6 more
doaj   +1 more source

THE SIMULATION STUDY OF APPLICATION OF THE FG-DVC MODEL TO THE PYROLYSIS OF HUADIAN OIL SHALE OF CHINA AT DIFFERENT HEATING RATES; pp. 111–124 [PDF]

open access: yesOil Shale, 2016
In order to study the relationship between the chemical structure and pyrolysis products of oil shale, a series of experiments with Huadian oil shale of China were performed at various heating rates (10, 20 and 50 °C/min) by using Thermogravimetric ...
QING WANG   +5 more
doaj   +1 more source

Comprehensive Utilization Analysis of Tailings

open access: yesScientific Journal of Technology, 2022
In the face of China's rapid economic development, China's mineral industry continues to improve, and the amount of tailings is also rising year by year. The economic and environmental problems caused by tailings are becoming more and more serious. According to the current tailings storage and utilization rate in China, this paper analyzes the types ...
Lijie Ma, Jinyi Liu
openaire   +1 more source

Complete chloroplast genomes of Rubus species (Rosaceae) and comparative analysis within the genus

open access: yesBMC Genomics, 2022
Background Rubus is the largest genus of the family Rosaceae and is valued as medicinal, edible, and ornamental plants. Here, we sequenced and assembled eight chloroplast (cp) genomes of Rubus from the Dabie Mountains in Central China.
Jiaojun Yu   +4 more
doaj   +1 more source

Rationale, design and conduct of a comprehensive evaluation of a primary care based intervention to improve the quality of life of osteoarthritis patients. The PraxArt-project: a cluster randomized controlled trial [ISRCTN87252339] ; study protocol [PDF]

open access: yes, 2005
Background: Osteoarthritis (OA) has a high prevalence in primary care. Conservative, guideline orientated approaches aiming at improving pain treatment and increasing physical activity, have been proven to be effective in several contexts outside the ...
Thomas Rosemann   +31 more
core   +2 more sources

Anti-aging effect of polysaccharides from the peel of Zanthoxylum schinifolium Sieb. et Zucc. on the nematode Caenorhabditis elegans

open access: yesActa Agriculturae Scandinavica. Section B, Soil and Plant Science, 2022
Zanthoxylum schinifolium Sieb. Et Zucc. (green pepper), a well-known traditional Chinese spice, recent studies found that the water extract of Z. schinifolium could significantly enhance the innate immune system, and Z.
Chengying Shan   +5 more
doaj   +1 more source

Industrial Application of New Environmentally friendly Tungsten Collector

open access: yesKuangchan zonghe liyong, 2022
In order to solve the problem of high COD value of tailings wastewater caused by tungsten collector during production, a new environmental friendly floating tungsten collector was developed and an industrial test was carried out in a concentrator in ...
Jin Liu, Hongying Zhang
doaj   +1 more source

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