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A proposal for detecting weak electromagnetic waves around 2.6μm wavelength with Sr optical clock

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Chinese Physics B 2024年第4期33卷 452-457页

作者：韩弱水王伟汪涛 Department of Physics and Chongqing Key Laboratory for Strongly Coupled PhysicsChongqing UniversityChongqing 401331China Center of Modern Physics Institute for Smart City of Chongqing University in LiyangLiyang 213300China State Key Laboratory of Quantum Optics and Quantum Optics Devices Shanxi UniversityTaiyuan 030006China

Infrared signal detection is widely used in many *** to the detection principle,however,the accuracy and range of detection are *** to the ultra stability of the^(87)Sr optical lattice clock,external infrared electromagnetic wave disturbances can be responded *** the ac Stark shift of the clock transition,we propose a new method to detect infrared *** to our calculations,the theoretical detection accuracy in the vicinity of its resonance band of 2.6μm can reach the order of 10-14W,while the minimum detectable signal of common detectors is on the order of 10^(-10)W.

关键词： infrared signal detection ^(87)Sr optical lattice clock ac Stark shift ultra stability

Crystal Structure of〔（PPh3）2（C6H5COO）RuB10 H8Cl〕·C5H12

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Chinese Journal of Structural Chemistry 1995年第Z1期 364-368页

作者： Yao Hai-Jun Fu Jun jin ruo-shui Wei jing-De Chen Jian Zheng Pei-Ju (Research Center of Analysis and Measurement, Fudan University,Shanghai 200433) (Chemistry Department.Fudan University, Shanghai 200433)

ＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆ〔（ＰＰｈ３）２（Ｃ６Ｈ５ＣＯＯ）ＲｕＢ１０Ｈ８Ｃｌ〕·Ｃ５Ｈ１２￥ＹａｏＨａｉ－Ｊｕｎ；ＦｕＪｕｎ；ＪｉｎＲｕｏ－Ｓｈｕｉ；ＷｅｉＪｉｎｇ－Ｄｅ；ＣｈｅｎＪｉａｎ；ＺｈｅｎｇＰｅ... 详细信息

ＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆ〔（ＰＰｈ３）２（Ｃ６Ｈ５ＣＯＯ）ＲｕＢ１０Ｈ８Ｃｌ〕·Ｃ５Ｈ１２￥ＹａｏＨａｉ－Ｊｕｎ；ＦｕＪｕｎ；ＪｉｎＲｕｏ－Ｓｈｕｉ；ＷｅｉＪｉｎｇ－Ｄｅ；ＣｈｅｎＪｉａｎ；ＺｈｅｎｇＰｅｉ－Ｊｕ(Ｒｅｓｅ...

关键词： crystal structure metallaborane ruthenaborane

Erythropoietin-induced hepatocyte receptor A2 regulates effect of pyroptosis on gastrointestinal colorectal cancer occurrence and metastasis resistance

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World Journal of Gastrointestinal Oncology 2024年第9期16卷 3781-3797页

作者： Yu-Kun Zhang Ran Shi ruo-Yu Meng shui-Li Lin Mei Zheng Department of Rehabilitation Medicine The First Affiliated Hospital of Shandong First Medical University&Shandong Provincial Qianfoshan HospitalJinan 250014Shandong ProvinceChina Department of Minimally Invasive Comprehensive Treatment of Cancer Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250021Shandong ProvinceChina Department of Ana and Intestinal Surgery The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina

Erythropoietin-induced hepatocyte receptor A2(EphA2)is a receptor tyrosine kinase that plays a key role in the development and progression of a variety of *** article reviews the expression of EphA2 in gastrointestinal(GI)colorectal cancer(CRC)and its regulation of *** is a form of programmed cell death that plays an important role in tumor *** have shown that EphA2 regulates pyrodeath through various signaling pathways,affecting the occurrence,development and metastasis of GI *** overexpression of EphA2 is closely related to the aggressiveness and metastasis of GI CRC,and the inhibition of EphA2 can induce pyrodeath and improve the sensitivity of cancer cells to *** addition,EphA2 regulates intercellular communication and the microenvironment through interactions with other cytokines and receptors,further influencing cancer *** role of EphA2 in GI CRC and its underlying mechanisms provide us with new perspectives and potential therapeutic targets,which have important implications for future cancer treatment.

关键词： Colorectal cancer Pyroptosis Erythropoietin-induced hepatocyte receptor A2 Tumor metastasis Drug resistance

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金融科技伦理:特征、治理架构及实践

科学学研究 2024年第7期42卷 1345-1353,1386页

作者：何若水陈光宇税发萍鲁若愚电子科技大学经济与管理学院四川成都611731

金融科技伦理是金融服务高质量发展的基石。鉴于学界在系统性治理方面研究不足,本文通过金融科技伦理的内涵剖析,揭示层次结构与演化过程的复杂性特征,包括技术隐蔽性、应用多样性、社会影响广泛性以及跨层次的纵向交互作用,还有横向的... 详细信息

金融科技伦理是金融服务高质量发展的基石。鉴于学界在系统性治理方面研究不足,本文通过金融科技伦理的内涵剖析,揭示层次结构与演化过程的复杂性特征,包括技术隐蔽性、应用多样性、社会影响广泛性以及跨层次的纵向交互作用,还有横向的导入期、技术入侵期和融合波动期以及周期性迭代增长。接着,构建针对融合波动期的引导性和预防性的协同治理架构,凸显以政府为主导并连接市场和个人的三元协同治理主体作用,强调从法律干预、市场调节到引导伦理嵌入的层层递进,以解决政策失灵、风险失控和伦理意识不足等主要问题。最后,对比分析世界主要经济体在金融科技伦理问题治理方面的规制措施和实例并给出治理建议,对于我国金融生态系统建设具有积极的意义。

关键词：金融科技复杂性三层架构伦理风险协同治理

高性能La-Co共替代M型永磁铁氧体的磁各向异性增强机理研究进展

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物理学报 2024年第12期73卷 35-59页

作者：刘若水王利晨俞翔孙洋何诗悦赵同云沈保根中国科学院宁波材料技术与工程研究所宁波315201 中国科学院物理研究所北京凝聚态物理国家研究中心北京100190 中国科学院赣江创新研究院赣州341119 中国科学技术大学稀土学院合肥230026

自20世纪末以来,La-Co共替代的M型铁氧体备受关注,已成为高性能永磁铁氧体的基础材料.Co2+的未淬灭轨道矩被认为是增强铁氧体单轴各向异性的原因,但其微观作用机理尚未完全解释清楚.为了满足铁氧体材料日益增长的性能需求,理解其磁各向... 详细信息

自20世纪末以来,La-Co共替代的M型铁氧体备受关注,已成为高性能永磁铁氧体的基础材料.Co2+的未淬灭轨道矩被认为是增强铁氧体单轴各向异性的原因,但其微观作用机理尚未完全解释清楚.为了满足铁氧体材料日益增长的性能需求,理解其磁各向异性增强机理至关重要,并寻求从根源上的提升、低成本和高效的方法,以制定开发高性能产品的指导原则.本文综述了一系列研究工作,旨在确定Co离子在晶格中的取代位置,这是增强磁各向异性的关键.这些研究为进一步提高永磁铁氧体的磁性能提供了重要的材料设计参考.

关键词：永磁铁氧体 La-Co 共替代磁晶各向异性 Co 占位

Ti^(4+)掺杂对Ca_(3)Co_(2)O_(6)磁性和磁-介电性能的影响

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物理学报 2024年第17期73卷 258-265页

作者：王明豪龚高尚张会均何诗悦刘若水王利晨杨淑娴郑州轻工业大学电子信息学院郑州450000 郑州轻工业大学河南省磁电信息功能材料重点实验室郑州450000 中国科学院宁波材料技术与工程研究所宁波315201 中国电子信息产业发展研究院集成电路研究所北京100081

本文采用溶胶-凝胶法制备了一系列Ca_(3)Co_(2-x)Ti_(x)O_(6)(x=0,0.02,0.04,0.06)多晶样品,并对他们的磁性、介电和磁介电性能进行了研究.X射线衍射结果显示少量的Ti4^(+)并未改变Ca_(3)Co_(2)O_(6)的晶体结构.虽然非磁性的Ti4^(+)离... 详细信息

本文采用溶胶-凝胶法制备了一系列Ca_(3)Co_(2-x)Ti_(x)O_(6)(x=0,0.02,0.04,0.06)多晶样品,并对他们的磁性、介电和磁介电性能进行了研究.X射线衍射结果显示少量的Ti4^(+)并未改变Ca_(3)Co_(2)O_(6)的晶体结构.虽然非磁性的Ti4^(+)离子破坏了Ca_(3)Co_(2)O_(6)的长程铁磁链并抑制了部分铁磁相互作用,使得掺杂样品的磁化强度有所降低.但磁性测量结果拟合得到的居里-外斯温度和交换常数均为正值,说明在Ti4^(+)掺杂的Ca_(3)Co_(2-x)Ti_(x)O_(6)样品中铁磁相互作用依旧是占据主导地位的.由于Ti4^(+)离子的引入,Ca_(3)Co_(2)O_(6)的自旋阻挫得到一定程度释放,抑制了Ca_(3)Co_(2)O_(6)磁化台阶的形成.Ca_(3)Co_(2)O_(6)作为一种典型的磁介电耦合材料,Ti4^(+)离子掺杂对体系自旋阻挫的释放和精细磁结构的调控也使得样品的磁介电耦合效应受到了一定程度的抑制.

关键词： Ca_(3)Co_(2)O_(6) 磁化台阶磁介电效应

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骨质疏松症患者脆性骨折危险因素分析及骨折风险评估模型的建立

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中华骨质疏松和骨矿盐疾病杂志 2024年第4期17卷 308-317页

作者：吴芷若黄水金霍亚南熊昌辉邓颖钟彦嘉王晨秀林安华江西省鹰潭市疾病预防控制中心慢病科江西鹰潭335000 江西省人民医院(南昌医学院第一附属医院)内分泌骨质疏松与骨病科南昌330000

目的探索骨质疏松症患者发生脆性骨折的影响因素,并构建骨折风险评估模型。方法纳入912例骨质疏松症患者,分为骨折组595例,无骨折组317例。通过医院电子病历信息系统和骨质疏松患者数据管理平台查阅患者病历资料,获得临床特征、骨密度... 详细信息

目的探索骨质疏松症患者发生脆性骨折的影响因素,并构建骨折风险评估模型。方法纳入912例骨质疏松症患者,分为骨折组595例,无骨折组317例。通过医院电子病历信息系统和骨质疏松患者数据管理平台查阅患者病历资料,获得临床特征、骨密度、实验指标和生活方式等38个变量。对比骨折组与无骨折组的差异,通过Logistic回归分析脆性骨折的影响因素,并建立回归模型。采用Bootstrap法内部验证模型、绘制模型校准曲线及列线图。结果与无骨折组比较,骨折组的年龄更大、碱性磷酸酶(alkaline phosphatase,ALP)更高,有跌倒史和有父母髋部骨折史的发生率更高,运动和日照时间更少,腰椎、股骨颈、全髋骨密度(bone mineral density,BMD)更低,(P0.05,提示模型具有较好的校准度与区分度。结论骨质疏松症患者的年龄、过去一年跌倒史、父母髋部骨折史、ALP是骨质疏松症患者发生脆性骨折的危险因素,腰椎BMD是保护因素。研究建立的模型中包含的4个变量均是简单、易获得的指标,无需进行双能X线吸收测量仪(dual energy X-ray absorptiometry,DXA)检测即可判断骨质疏松症患者的脆性骨折风险,在各级别医疗机构都有一定推广价值。

关键词：骨质疏松症脆性骨折骨密度

Is the Paris rulebook sufficient for effective implementation of Paris Agreement?

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Advances in Climate Change Research 2022年第4期13卷 600-611页

作者： ruo-shui SUN Xiang GAO Liang-Chun DENG Can WANG School of Environment Tsinghua UniversityBeijing 100084China National Center for Climate Change Strategy and International Cooperation Beijing 100035China Center for Environmental Progress Wuhan 430070China

Glasgow Climate Conference concluded the negotiation on implementing rules for Paris Agreement and adopted the Glasgow Climate *** on practices under the UNFCCC and its Kyoto Protocol,Paris Agreement enhanced global climate change *** Agreement established a system centered around‘nationally determined contributions’(NDCs)of Parties,with a transparency framework to ensure information flow running the system,meanwhile facilitating implementation by Parties through the mechanism on facilitation and compliance,as well as urging Parties to enhance ambition both at individual level and aggregate level through the mechanism on Global *** doing so,it is logical that the system would lead to the achievement of the goal set by Paris ***,the system stil faces significant deficiency,such as lack of information timeliness,intransparency of some necessary information,hypothesis-based but not solution-based decision-making,and lack of effective assurance for developing countries to get finance and technology *** is concluded that this system is beneficial to long-term climate change policy decision and tracking progress of actions,while for shor-term decision-making,more comprehensive consideration is needed than only based on the mechanisms of and outcomes from the *** society should pay more attention to the progress of implementation,as well as ambition of various support provided to developing countries,than only the ambition of mitigation target numbers.

关键词： Global climate govermnance Paris Agreement Paris rulebook Nationally determined contribution Multilateral environmental agreement

Comparison of Two Dripper Line Designs to Assess Cotton Yield,Water Use,and Net Return in Northwest China

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Journal of Integrative Agriculture 2012年第11期11卷 1924-1932页

作者： WANG ruo-shui WAN Shu-qin KANG Yue-hu LIU Shi-ping Key Laboratory of Water Cycle and Related Land Surface Processes Institute of Geographic Science and Natural Resources Research Chinese Academy of Sciences Beijing 100101 P.R.China University of Chinese Academy of Sciences Beijing 100049 P.R. China

This study aimed to compare the effects of two types of drip irrigation line design on cotton yield, water use, and net returns. The experiments were carried out in the arid region of Xinjiang, Northwest China, during 2009-2010 growing years. The two types of lateral placement are commonly used by the local farmers in the area： double lines （two laterals controlling four rows） and single line designs （one lateral controlling four rows）. The results indicated that less irrigation water was applied by single line compared with double lines design. This implies that more irrigation water could be saved using single line, by reducing the water consumption of cotton. The emergence rates for double lines were 2 and 6% higher than those for single line design in 2009 and 2010. The seed cotton yields for double lines design were 5.76 and 6.41 Mg ha-1 which were 13 and 9% higher than for single line design in 2009 and 2010, respectively. Single lines could however lower the investment cost compared to double lines, which produced 10 and 7% more net income in 2009 and 2010, respectively. By contrast, the double lines was more profitable and suitable for the farmers in Northwest China than single line design.

关键词： drip irrigation lateral layout economic benefit water saving water use efficiency (WUE)