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| 1 | A stepwise-designed Rh-Au-Si nanocomposite that surpasses Pt/C hydrogen evolution activity at high overpotentials显示文摘由 electrocatalysis 的氢进化是供应干净精力的一个吸引人的方法。然而,它正在质问发现稀罕、昂贵的铂的便宜、有效的选择基于催化剂。磅提供最好的氢进化表演,因为它最佳地平衡吸附和解吸附作用的免费精力。这些数量的适当控制为生产有效 electrocatalyst 是必要的。我们示威,基于第一原则计算,逐步的设计 Rh-Au-Si 第三的催化剂,吸附(Volmer 反应) 和解吸附作用(Heyrovsky 反应) 在发生在 Rh 和 Si 上分别地出现。中间的 Au 表面由从 Rh 把氢散开提升到 Si 表面起一个重要作用。理论预言广泛地被探索了并且由试验性的观察验证了。优化催化剂(Rh-Au-SiNW-2 ) 有 2.2:28.5:69.3 的一篇作文(Rh : Au : Si 集体比率) 并且展出 24.0 mV 的一个 Tafel 斜坡 ? | Binbin Jiang Lulu Yang Fan Liao Minqi Sheng Haozhe Zhao Haiping Lin Mingwang Shao | 2017 | Nano Research2017，10，5： | 3 |
| 2 | The Influence of Ultrasonic Frequency on the Properties of Ni-Co Coatings Prepared by Ultrasound-assisted Electrodeposition显示文摘In this paper,Ni-Co coatings were electrodeposited onto carbon steel substrates with the aid of ultrasonic agitation.The coatings were analyzed by energy dispersive X-ray analysis(EDX),X-ray difraction analysis(XRD)and scanning electron microscopy(SEM).The efects of the ultrasonic frequency on the roughness,hardness and corrosion resistance of the Ni-Co coatings were also investigated.The results indicated that the increase of the ultrasonic frequency from 20 to 120 kHz reduced the Ni content and the grain size of Ni-Co coatings.Moreover,the phase structure of the electrodeposited coatings was influenced by the ultrasonic frequency.Under 55 kHz ultrasonic agitation,the Ni-Co coating was single fcc phase and showed the finest roughness and the strongest corrosion resistance in 5 wt.%NaCl solution at the ambient temperature.Under ultrasonic agitation with frequency of 90 kHz,the coating was a mixture of fcc and hcp structure and showed the maximal hardness of about 420 HV.Therefore,ultrasonic agitation helped decrease the roughness,and enhance hardness and corrosion resistance of Ni-Co coatings. | Minqi SHENG Chenkai LV Lan HONG Mingwang SHAO Kang WAN Fan LV | 2013 | Acta Metallurgica Sinica(English Letters)2013，26，6： | 2 |
| 3 | The effects of nano-SiO 2 additive on the zinc phosphating of carbon steel显示文摘 | Minqi Sheng Yi Wang Qingdong Zhong Hongyan Wu Qiongyu Zhou Hai Lin | 2010 | Surface & Coatings Technology2010，，11： | 1 |
| 4 | The relationships between step count and all-cause mortality and cardiovascular events:A doseresponse meta-analysis显示文摘Background:A goal of 10,000 steps per day is widely advocated,but there is little evidence to support that goal.Our purpose was to examine the doseresponse relationships between step count and all-cause mortality and cardiovascular disease risk.Methods:Cochrane Central Register of Controlled Trials,EMBASE,OVID,PubMed,Scopus,and Web of Science databases were systematically searched for studies published before July 9,2021,that evaluated the association between daily steps and at least 1 outcome.Results:Sixteen publications(12 related to all-cause mortality,5 related to cardiovascular disease;and 1 article contained 2 outcomes:both allcause death and cardiovascular events)were eligible for inclusion in the meta-analysis.There was evidence of a nonlinear doseresponse relationship between step count and risk of all-cause mortality or cardiovascular disease(p=0.002 and p=0.014 for nonlinearity,respectively).When we restricted the analyses to accelerometer-based studies,the third quartile had a 40.36%lower risk of all-cause mortality and a 35.05%lower risk of cardiovascular event than the first quartile(all-cause mortality:Q1=4183 steps/day,Q3=8959 steps/day;cardiovascular event:Q1=3500 steps/day,Q3=9500 steps/day;respectively).Conclusion:Our meta-analysis suggests inverse associations between higher step count and risk of premature death and cardiovascular events in middle-aged and older adults,with nonlinear doseresponse patterns. | Mingxin Sheng Junyue Yang Min Bao Tianzhi Chen Ruixue Cai Na Zhang Hongling Chen Minqi Liu Xueyu Wu Bowen Zhang Yiting Liu Jianqian Chao | 2021 | Journal of Sport and Health Science2021，10，6： | 0 |
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