Results 21 to 30 of about 3,506,686 (362)
Study on Comprehensive Recovery and Utilization of a Low-grade Gold-Copper Ore in Fujian
A low-grade gold-copper mixed ore in Fujian contains Au 0.36 g/t, Cu 0.29%, Ag 7.4 g/t, S 4.02%. If it is directly cyanidized, copper enters the gold cyanide leaching system, not only cannot be recovered, It will also worsen the gold selection index and ...
Tao Yue +4 more
doaj +1 more source
Depression, School Performance, and the Veridicality of Perceived Grades and Causal Attributions [PDF]
An external criterion was assessed to test whether depressives have distorted perceptions of covariation information and whether their attributions are consistent with this information.
Buchanan, G. M. +7 more
core +1 more source
Performance Analysis on a Power and Ejector-Refrigeration System and the Involved Ejector
In order to make better use of the thermal energy at low and medium temperature and improve the organic Rankine cycle performance, the power, and ejector-refrigeration system has been put forward and a lot of research has been carried out.
Xiaolin Zhang +5 more
doaj +1 more source
A dynamic model for the optimization of oscillatory low grade heat engines [PDF]
The efficiency of a thermodynamic system is a key quantity on which its usefulness and wider application relies. This is especially true for a device that operates with marginal energy sources and close to ambient temperatures.
Markides, CN, Smith, TCB
core +2 more sources
Numerical Simulation and Analysis of CO2 Removal in a Polypropylene Hollow Fiber Membrane Contactor
This present study shows a comprehensive 2D numerical model for removal of CO2 in a polypropylene (PP) hollow fiber membrane contactor (HFMC) using the computational fluid dynamics (CFD) method.
Zhien Zhang +3 more
doaj +1 more source
A numerical model of a zinc-para-benzoquinone membrane-free organic flow battery
Organic flow batteries have received a great deal of interest in the past five years as potential candidates for large-scale energy storage, due to their low costs, abundant active materials and multi-electron transfers.
Feilin Yu, Akeel Shah, Puiki Leung
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The increase in electricity demand is caused by population density, gross domestic product growth and technological conditions. A long-term forecast study on the electricity demand could be a promising alternative to the investment planning of power ...
Moussa Kanté, Yang Li, Shuai Deng
doaj +1 more source
The introduction of renewable resources into the distributed energy system has challenged the operation optimization of the distributed energy system. Integration of new technologies and diversified characteristics on the demand side has exerted a great ...
Pengwei Su +6 more
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MicroRNA-551b expression profile in low and high-grade cervical intraepithelial neoplasia [PDF]
OBJECTIVE: To evaluate the expression of microRNA (miR)-551b in patients with low and high grade cervical intraepithelial neoplasia (CIN) and to find an association with high-risk Human Papillomavirus (HR-HPV) infection-related prognostic biomarkers ...
Bordi, G +7 more
core +1 more source
China’s coal-fired power plants emit over 5.7 billion tons of CO2 annually. To realize the dual carbon goals in time, it is necessary to reduce the carbon emissions of coal-fired power plants. Microalgae carbon fixation can efficiently absorb CO2 through
Ao XIA +6 more
doaj +1 more source

