Results 11 to 20 of about 937,596 (337)
BMC Medical Education, 2023 Background To determine physician assistant/associate (PA) perceptions of the value of certification and explore how they vary across demographic and practice characteristics.
Andrzej Kozikowski +5 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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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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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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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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Ensuring the safety of workers in underground electrical installations - professional risk assessment [PDF]
MATEC Web of Conferences, 2020 Occupational risk assessment is a prevention tool used to manage safety and health at work in the national economy sectors of activity. Within the operation and maintenance in underground electrical installations, several major risk factors are ...
Buică Georgeta +4 more
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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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Ensuring the safety and health of workers performing work at heights in the industrial sectors [PDF]
MATEC Web of Conferences, 2020 The research study aims to implement the general principles for the prevention of professional risks at employers’ level in relation to low-mobility workers in order to ensure an adequate level of safety and to ensure protection measures in support of ...
Antonov Anca Elena +2 more
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Effect of the size of the seeds of the main and second cob of maize hybrid Maxima on physiologic quality of seeds being dried by dryer and air-dried [PDF]
علوم و فناوری بذر ایران, 2020 This study was aimed to determine the effect of seed size of the first (main) ear and the second ear and drying methods on seed quality of maize hybrid Maxima.
Zahra Radmanesh, Samad Mobasser
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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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