Results 11 to 20 of about 1,045,115 (361)
Shipin gongye ke-ji, 2023 To investigate the rare earth elements residues in teas from Jiangxi Province in order to provide suggestions on reducing rare earth elements (REEs) contamination, and to improve the quality of tea.
Zhiliang XU, Xinquan ZHANG
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Hangkong gongcheng jinzhan, 2020 With the best comprehensive performance, Li-ion batteries are widely applied to civil aviation. As the research of its technical characteristics and security risks are defective, and the applicable airworthiness regulations are short of safety standards,
MA Yingkun, QIU Tao
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Determination of Trace Elements in Nickel-based High-temperature Alloy by High Resolution Plasma Mass Spectrometry [PDF]
Zhipu Xuebao, 2023 The nickel content of nickel-based high-temperature alloy is between 50% and 70%, and the alloy contents of chromium, iron, cobalt, molybdenum, aluminum, titanium and tungsten are within 20%.
HU Xuan1 +6 more
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The effect of acetic acid extraction time on the dissolution of lead and cadmium in ceramic tiles [PDF]
E3S Web of Conferences, 2020 With the improvement of people's living standard, the glazed tiles will be decorated with some colored glaze materials in order to increase strength and surface decoration effect, and these ceramic tiles containing lead and cadmium will be dissolved out ...
Tian Tao +3 more
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Yankuang ceshi, 2021 BACKGROUND Composition analysis of copper concentrate is an important method to determine its quality, especially the analysis of the main element copper.
ZHOU Cheng-ying +6 more
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Kuangchan zonghe liyong, 2023 This is a paper in the field of metallurgical engineering. In order to solve the lack of mineral elements in pure water, increasing their concentration via the dissolution characteristics of mineral materials was a valid method.
Mingtao Hou +5 more
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The Design of The Positioning Mechanism of The Mould Car in The Intelligent Manufacturing Production Line of Sanitary Ceramics [PDF]
E3S Web of Conferences, 2021 The social production demand of intelligent manufacturing production line of sanitary ceramics was expounded, the technological process of intelligent manufacturing of sanitary ceramics was analyzed, and the importance of mold car positioning in the ...
Zhong Bo, Lv Huachao, Gao Hui, Wang Ying
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Effect of oil palm sustainability certification on deforestation and fire in Indonesia. [PDF]
, 2017 Many major corporations and countries have made commitments to purchase or produce only "sustainable" palm oil, a commodity responsible for substantial tropical forest loss.
Burns, David N +8 more
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Formation and growth of precipitates in a Mg-7Gd-5Y-1Nd-2Zn-0.5Zr alloy aged at 200 °C
Journal of Magnesium and Alloys, 2023 Crystal structures, growth characteristics, and transformation of the precipitates in a Mg-7Gd-5Y-1Nd-2Zn-0.5Zr (wt.%) alloy aged at 200 °C for various durations were investigated using transmission electron microscopy (TEM) and high-angle annular dark ...
Zhiwei Du +9 more
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A Study on FMECA by Technical Specification for Railway Constituent [PDF]
한국정밀공학회지The Technical Specification for Interoperability (TSI) legally mandates the prediction and verification process of the Reliability, Availability, Maintainability and Safety (RAMS) in signaling and communication systems.
Kang Ho Lee +3 more
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