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20篇 您的检索式:作者名="YIMING L"
    题名 作者 年代 出处 被引量
1饮水微量元素与老年人群认知能力关系研究显示文摘在中国山东与河南两省农村研究了饮水中微量元素与老年人群认知能力 (CognitiveFunction)之间的关系。采用中国国标方法分析了饮水中氟、钙、硒、铝、铁、锌、镉、铅、砷微量元素和pH值 ;用老年性痴呆症 (Dementia)调查表 ,进行了≥ 6 5岁老年暴露人群认知能力的测定。调整年龄、性别和文化水平后 ,对微量元素与老年认知能力之间的关系进行直线模型、二次方模型和联合作用模型的统计分析 ,评价饮水中每种微量元素浓度对老年认知能力的影响。结果表明 ,单因素分析时发现几种微量元素对老年认知能力有明显作用。然而 ,在调整其它元素水平后 ,其中一些元素的作用消失。饮水中钙浓度对老年认知能力呈现一作用曲线 ,即随着饮水钙水平升高而认知能力增加 ;到某一点高峰后 ,又随钙水平增加而认知能力降低。而锌与镉之间存在一种相互作用 ,即在低饮水镉水平时 ,锌浓度与认知能力呈正相关 ,但在高饮水镉水平时 。梁超轲 吉荣娣 曹静祥 姜玉亭 余波 马凤 吴云鹏 应波 张妍 孙淑庄 Li Yiming Christine L Emsley Gao Sujuan Kathleen S Hall Hugh C Hendrie 2003卫生研究2003,32,5:12
2Dual-layered metasurfaces for asymmetric focusing显示文摘Asymmetric transmission,defined as the difference between the forward and backward transmission,enables a plethora of applications for on-chip integration and telecommunications.However,the traditional method for asymmetric transmission is to control the propagation direction of the waves,hindering further applications.Metasurfaces,a kind of two-dimensional metamaterials,have shown an unprecedented ability to manipulate the propagation direction,phase,and polarization of electromagnetic waves.Here we propose and experimentally demonstrate a metasurface-based directional device consisting of a geometric metasurface with spatially rotated microrods and metallic gratings,which can simultaneously control the phase,polarization,and propagation direction of waves,resulting in asymmetric focusing in the terahertz region.These dual-layered metasurfaces for asymmetric focusing can work in a wide bandwidth ranging from 0.6 to 1.1 THz.The flexible and robust approach for designing broadband asymmetric focusing may open a new avenue for compact devices with potential applications in encryption,information processing,and communication.BINGSHUANG YAO XIAOFEI ZANG ZHEN L LIN CHEN JINGYA XIE YIMING ZHU SONGLIN ZHUANG 2020Photonics Research2020,8,6:2
3A Reviewand Analysis of Current Computer-Aided Fixture DesignApproaches 显示文摘B O Y L E Iain R O N G Yiming B R O W N David C 2011Robotics and Computer-Integrated Manufacturiiig2011,27,1:1
4Comparison of Clinical Efficacy and Safety of Three Professional At-Home Tooth Whitening Systems显示文摘Yiming Li Sean S Lee Susan L Cartwright 2003Compendium2003,24,5:1
5Neurotoxic effects and biomarkers of lead exposure显示文摘Talia S Yiming L Virginia B 2009Rev Environ Health2009,24,1:1
6Can market oriented economic reforms to energy efficiency improvement ? evidence from china显示文摘Ying F Hua L Yiming W 0,,04:1
7Control of β-catenin phosphorylation/degradation by a dual-kinase mechanism显示文摘CHUNMING L YIMING L MIKHAIL S 2002Cell2002,108,6:1
8Human genomes as email attachments显示文摘SCOTT CHRISTLEY YIMING L U CHEN L I 2009Bioinfonnatics2009,25,2:1
9Reverse Logistics in the Electronic Industry ofChina: a Case Study 显示文摘KwokH L Yiming W 2009An International Journal of Supply ChainManagement2009,14,6:1
10Pressure-induced robust emission in a zero-dimensional hybrid metal halide (C_(9)NH_(20))_(6)Pb_(3)Br_(12)显示文摘Zero-dimensional(0D)hybrid metal halides are under intensive investigation owing to their unique physical properties,such as the broadband emission from highly localized excitons that is promising for white-emitting lighting.However,fundamental understanding of emission variations and structure–property relationships is still limited.Here,by using pressure processing,we obtain robust exciton emission in 0D(C_(9)NH_(20))_(6)Pb_(3)Br_(12) at room temperature that can survive to 80 GPa,the recorded highest value among all the hybrid metal halides.In situ experimental characterization and first-principles calculations reveal that the pressure-induced emission is mainly caused by the largely suppressed phonon-assisted nonradiative pathway.Lattice compression leads to phonon hardening,which considerably weakens the exciton–phonon interaction and thus enhances the emission.The robust emission is attributed to the unique structure of separated spring-like[Pb_(3)Br_(12)]^(6−)trimers,which leads to the outstanding stability of the optically active inorganic units.Our findings not only reveal abnormally robust emission in a 0D metal halide,but also provide new insight into the design and optimization of local structures of trimers and oligomers in lowdimensional hybrid materials.Mengting Chen Songhao Guo Kejun Bu Sujin Lee Hui Luo Yiming Wang Bingyan Liu Zhipeng Yan Hongliang Dong Wenge Yang Biwu Ma Xujie Lü 2021Matter and Radiation at Extremes2021,6,5:1
11Neuroprotective effects of breviscapine against apoptosis induced by transient focal cerebral ischaemia in rats 显示文摘Yiming L Wei H Aihua L 2008J Pharm Pharmacol2008,60,3:1
12Neurotoxic effects and biomarkers of lead exposure 显示文摘Talia S Yiming L Virginia B 2009Rev Environ Health2009,24,1:1
13Robust stabilization of infinite-dimensional systems using sliding-mode output feedback control 显示文摘Yury O Yiming L 2004International Journal of Control2004,77,12:1
14Neurotoxic effects and biomarkers of lead exposure显示文摘Talia S Yiming L Virginia B 0,,01:1
15Energy conservation in China: Key provincial sectors at two -digit level 显示文摘HUA L JIAN D YIMING W 2013Applied Energy2013,104,1:1
16Autogenous coronoid process pedicled on temporal muscle grafts for reconstruction of the mandible condylar in patients with temporomandibular joint ankylosis显示文摘YIMING L I U JIHUA L I JING H U 2010Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology2010,109,2:1
17The primary observation and approach to effects of hepatic artery on the results of liver transplantation显示文摘Li Yiming Roger L Jenkins W David Lewis 1993J Xi''an Med Univ1993,5,2:1
18Neuroprotective effects of breviscapine against apoptosis induced by transient focal cerebral ischaemia in rats显示文摘Yiming L Wei H Aihua L 2008J Pharm Pharmacol2008,60,3:1
19Mass transfer trends and the formation of a single deposition spot during high-energy micro- arc alloying of AZ31 mg alloy显示文摘Changjun C Maoeai W Yiming L 2008Journal of Materials Processing Technology2008,198,:1
20Reverse logistics in the elec- tronic industry of China: A case study 显示文摘Kwok H L Wang Yiming 2009Supply Chain Management An International Journal2009,14,6:1
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