Results 11 to 20 of about 199,415 (266)

Formation and Inhibition of Calcium Carbonate Crystals under Cathodic Polarization Conditions

Crystals, 2020
The formation of CaCO3 crystals on the cathode surface and the scale-inhibition performance of scale inhibitor 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA) on the cathode surface were studied by methods of solution analysis, gravimetric analysis ...
Kun Sheng, Honghua Ge, Xin Huang, Yi Zhang, Yanfang Song, Fang Ge, Yuzeng Zhao, Xinjing Meng   +7 more
doaj   +1 more source

The Mechanical Behavior and Microstructure of a Multilayer Nanostructured Ni-Co Alloy Fabricated by Electrodeposition

International Journal of Electrochemical Science, 2021
A bulk multilayer nanostructured Ni-Co alloy with nano-grains (NG) layer with a thickness of 2.7μm and ultrafine grains (UFG) layer with a thickness of 0.9μm alternately grown is fabricated by an electrodeposition process.
Xiaoxue Zhang, Xixun Shen, Jiawen Chen
doaj   +1 more source

Research on the Ratio between the Convection and Radiation Heat Exchange Amount of the Face and Head of Manikin in the Thermal Comfort Condition [PDF]

E3S Web of Conferences, 2022
In this paper, the radiation heat exchange coefficient of the exposed parts of human body is firstly obtained through pre-experiment, which is used to separate the total output heat exchange amount of the manikin. Then the heat exchange amount of manikin
Yang Xinwei, Wang Lihui, Bai Xinhui, Ma Changjiang, Ma Jianan, Zhu Jialiang   +5 more
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Computational parametric study on efficiency of low boiling point fluid plants under heat exchange process intensification [PDF]

E3S Web of Conferences, 2021
One of the main challenges for the energy industry is to improve the reliability and efficiency of heat exchange equipment in heating plants. Phase-change heat exchangers with low boiling point fluid (LBPF) are widely used in both conventional and ...
Likhaeva Alena, Grigoriev Sergey, Trushin Evgeniy, Dasaev Marat   +3 more
doaj   +1 more source

Inhibition of Poly(ethylenediaminetetraacetic acid-diethanolamine) on Deposition of Calcium Sulfate Crystal in Simulated Industrial Water

Crystals, 2020
Calcium sulfate scale is a typical deposit on the equipment pieces or pipes of an industrial water system. Scale inhibitors could obviously reduce the precipitation of calcium sulfate crystal.
Jian-Qiu Chen, Ting-Ran Liu, Miao-Miao Sun, Yu-Zeng Zhao, Hong-Hua Ge   +4 more
doaj   +1 more source

The Microstructure and Properties of Nitrided Chromium Coating on 316 Stainless Steels Fabricated by Electrodeposition and Electrolytic Nitriding for PEMFC Bipolar Plate

International Journal of Electrochemical Science, 2021
In this paper, a nitrited chromium composite coating is fabricated as a protective coating for the 316 stainless steels bipolar plates by a combination process of electrodeposition and liquid-phase plasma electrolysis. The pre-treatment of chemical micro
Yaxue Wang, Chengwei Deng, Yi Sun, Xixun Shen, Yanyan Zhu   +4 more
doaj   +1 more source

A dynamic stiffness model for high-speed ball screw pair with the mass center of screw nut considered

Mechanics & Industry, 2023
The development of accurate dynamic stiffness models is a key aspect in the design process of ball screws. However, variations in the nut center of mass position can affect the dynamic stiffness, which makes it difficult to develop a stiffness model.
Jin Lan, Li Chunhui, Wang Xiao, Xie Liming   +3 more
doaj   +1 more source

Non-premixed combustion and NOX emission characteristics in a micro gas turbine swirl combustor fueled by methane and ammonia at various heat loads

Heliyon, 2023
In comparison to methane (CH4), ammonia (NH3) is considered a potential carbon-free alternative fuel that can reduce greenhouse gas emissions. But a principal concern is the generation of elevated nitrogen oxide (NOX) emissions from NH3 flame.
Yunyun Wang, Jiang Liu, Luyu Wang, Zaiguo Fu, Peifen Weng   +4 more
doaj   +1 more source

Synthesis of 3-arylphthalides with a quaternary carbon center via [4+1] cycloaddition of 2-carbonylcyclohexadienimines with isocyanides under metal-free conditions

Journal of Saudi Chemical Society, 2020
Rapid synthesis of 3-arylphthalides with a quaternary carbon center has been achieved via a cascade [4+1] cycloaddition/nucleophilic 1,4-addition of 2-carbonylcyclohexadienimines with two molecules of isocyanides.
Zhihao Du, Qunjie Xu, Guangxin Gu
doaj   +1 more source

Effect of Carbon Nanoparticles on the Crystallization of Calcium Carbonate in Aqueous Solution

Nanomaterials, 2019
Nanofluids have great application prospects in industrial heat exchange systems because they can significantly improve the heat and mass transfer efficiency.
Chuan Wan, Le-Tian Wang, Jun-Yi Sha, Hong-Hua Ge   +3 more
doaj   +1 more source