期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
磨矿环境和晶格杂质对锂辉石浮选的影响(英文) 被引量:5
1
作者 朱广丽 王毓华 +5 位作者 王旭明 Jan D.MILLER 卢东方 郑霞裕 赵悦豪 郑海涛 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2019年第7期1527-1537,共11页
研究油酸钠体系中磨矿对锂辉石浮选行为的影响。不同磨矿环境导致锂辉石表面暴露的金属活性位点的含量有差异,从而显著影响锂辉石的可浮性。酸处理后金属活性位点脱离锂辉石表面,使得锂辉石的可浮性下降,进一步表明金属活性位点对锂辉... 研究油酸钠体系中磨矿对锂辉石浮选行为的影响。不同磨矿环境导致锂辉石表面暴露的金属活性位点的含量有差异,从而显著影响锂辉石的可浮性。酸处理后金属活性位点脱离锂辉石表面,使得锂辉石的可浮性下降,进一步表明金属活性位点对锂辉石浮选的重要作用。金属离子杂质可能来源于磨矿环境或晶格杂质。密度泛函理论(DFT)计算表明,杂质铁、钙质点主要是以晶格取代的形式存在于锂辉石表面,镁难以发生晶格取代。与钙和镁相比,铁更易于与油酸钠发生相互作用。扫描电镜结果表明,锂辉石的粒度和解理特性不同,导致其暴露晶面的差异。在不同磨矿环境下,粒度、解理特性和金属离子杂质对油酸钠捕收剂浮选锂辉石起着重要作用。 展开更多
关键词 磨矿 晶格取代 金属杂质 DFT计算 锂辉石 解理 浮选
下载PDF
Zoonotic parasites carried by invasive alien species in China 被引量:2
2
作者 guang-li zhu Yi-Yang Tang +3 位作者 Yanin Limpanont Zhong-Dao Wu Jian Li Zhi-Yue Lv 《Infectious Diseases of Poverty》 SCIE 2019年第1期1-17,共17页
Background:The invasive alien species may lead to great environmental and economic crisis due to its strong capability of occupying the biological niche of native species and altering the ecosystem of the invaded area... Background:The invasive alien species may lead to great environmental and economic crisis due to its strong capability of occupying the biological niche of native species and altering the ecosystem of the invaded area.However,its potential to serve as the vectors of some specific zoonotic pathogens,especially parasites,has been neglected.Thus,the damage that it may cause has been hugely underestimated in this aspect,which is actually an important public health problem.This paper aims to discuss the current status of zoonotic parasites carried by invasive alien species in China.Main body:This review summarizes the reported zoonotic parasites carried by invasive alien species in China based on the Database of Invasive Alien Species in China.We summarize their prevalence,threat to human health,related reported cases,and the roles of invasive alien species in the life cycle of these parasites,and the invasion history of some invasive alien species.Furthermore,we sum up the current state of prevention and control of invasive alien species in China,and discuss about the urgency and several feasible strategies for the prevention and control of these zoonoses under the background of booming international communications and inevitable globalization.Conclusions:Information of the zoonotic parasites carried by invasive alien species neither in China or worldwide,especially related case reports,is limited due to a long-time neglection and lack of monitoring.The underestimation of their damage requires more attention to the monitoring and control and compulsory measures should be taken to control the invasive alien species carrying zoonotic parasites. 展开更多
关键词 Invasive alien species Zoonotic parasite China
原文传递
Comparative role of real-world study and traditional randomized controlled trials in head and neck cancer:a literature-based analysis
3
作者 guang-li zhu Cheng Xu +7 位作者 Si-Qi Tang Lei Chen Yan-Ping Mao Ling-Long Tang Guan-Qun Zhou Qing Liu Ying Sun Jun Ma 《Chinese Medical Journal》 SCIE CAS CSCD 2021年第4期489-491,共3页
To the Editor:In the era of evidence-based medicine,the traditional randomized controlled trials(RCT)is on the top of the pyramid of evidence hierarchy.With well-controlled inclusion and exclusion criteria,randomizati... To the Editor:In the era of evidence-based medicine,the traditional randomized controlled trials(RCT)is on the top of the pyramid of evidence hierarchy.With well-controlled inclusion and exclusion criteria,randomization,and strict intervention protocol,traditional RCT construct the ideal medical circumstance,under which the causal relationship between the outcome and intervention can be better interpreted.However,it will also make the external validity and generalizability of traditional RCT limited. 展开更多
关键词 RANDOMIZED PYRAMID validity
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部