检索结果-南通市图书馆

第十届全国青年通信学术会议

作者： Zhengjun Cao institute of Systems Science, academy of Mathematics and Systems Science, chinese academy of sciences, beijing, P.R. china. 100080

＜正＞We show the untraceability of two group signatures [1,5] by very simple attacks.

关键词： Group signature Untraceability.

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Impaired long-term plasticity in the mice lacking xCT,a subunit of cystine/glutamate transporter

Impaired long-term plasticity in the mice lacking xCT,a subu...

引用

The 2nd International and 11th National Symposium on Membrane Biology

作者： Yan Li~(1,2),Wei Li~1 1.Key Laboratory of Molecular and Developmental Biology,institute of Genetics and Developmental Biology,chinese academy of {3.,beijing,china 2.Graduate University of chinese academy of {3.,beijing,china

xCT is the functional subunit of amino acid transporting system X which exchanges extracellular cystine with intracellular *** has been demonstrated to play an important role in redox maintenance,mostly in vitro or under pathological *** we use sut mouse,an xCT null mutant,to explore the function of xCT under physiological

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Boundary Uniform Stabilization of Wave Equations with Variable Coefficients

Boundary Uniform Stabilization of Wave Equations with Variab...

引用

第十九届中国控制会议

作者： FENG Shao-Ji FENG De-Xing institute of Systems Science, academy of Mathematics and Systems Science chinese academy of sciences, beijing 100080, china

The aim of this paper is to obtain the exponential energy decay of the solution of the wave equation with variable coefficients under suitable linear boundary feedback. Multiplier method and Riemannian geometry method... 详细信息

关键词： Wave equations boundary feedback exponential energy decay Riemannian manifold

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Investigation and protection strategies of fishes of Lhasa River

Investigation and protection strategies of fishes of Lhasa R...

引用

中国鱼类学会2008年学术研讨会

作者： CHEN Feng~(1,2),CHEN Yi-Feng~1 (1.institute of Hydrobiology,chinese academy of {3.,Wuhan 43.072,china 2.The Graduate School of chinese academy of {3.,beijing 10003.,china)

＜正＞Lhasa River is the biggest tributary of Yarlung Zangbo *** fish fauna comprised 13.fish species and a natural bastard,belonging to Schizothoracinae,Nemacheilinae and Sisoridae. Disturbed by human activities,plen...

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Dependence of the IMF sector structure on the solar dipole tilt angle

Dependence of the IMF sector structure on the solar dipole t...

引用

中国科学院地质与地球物理研究所2008学术年会

作者： A.M.Du,W.Y.Xu,and X.S.Feng 1 institute of Geology and Geophysics,chinese academy of {3., beijing,china. 2 State Key Laboratory for Space Weather,chinese academy of {3.,beijing,china.

[1]The quasiperiodic variations of the interplanetary magnetic field(IMF) sector structure at the ACE satellite(L1) are investigated using power spectrum *** appears that the two-sector structure of the IMF dominates during the solar maximum, lasting 3.years from 2000 through 2003.and the four-sector structure dominates during the solar activity minimum.A possible explanation is introduced for this phenomenon in which the IMF sector structures vary with the tilt angle of the heliospheric current sheet (HCS) with respect to the solar rotation *** the solar activity maximum,the HCS is perpendicular to the ecliptic *** the spacecrafts at L1 point are expected to pass through the HCS only twice in one solar rotation,which gives rise to the observed two-sector structure of the *** the other hand,during the solar activity minimum,the HCS is nearly parallel to the ecliptic plane,and the polarity of IMF Bx changes several times in one solar rotation due to the wavy nature of the HCS, which may lead to the observed four-sector structure.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

R & D OF CAST SUPERALLOYS AND PROCESSING FOR GAS TURBINE BLADES IN BIAM

引用

Acta Metallurgica Sinica(English Letters) 1996年第6期9卷 457-463页

作者： Y.F. Han and R.Z. Chen(institute of Aeronautical Materials, beijing 100095,china ) beijing Inst of Aeronautical Materials Beijing China

Research and development of cast superalloys and processing for turbine blades in BIAM during the last 3. years have been reviewed briefly in this paper.

关键词： cast nickel base superalloy turbine blade ceramic core shell Mold

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Uppermost mantle structure of the North china Craton:Constraints from interstation Pn travel time difference tomography

Uppermost mantle structure of the North China Craton:Constra...

引用

中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： LI ZhiWei~(1,2),HAO TianYao~(1*) & XU Ya~1 ~1Key Laboratory of Petroleum resources Research,institute of Geology and Geophysics,chinese {3. of sciences,beijing 100029,china ~2Key Laboratory of Dynamical Geodesy,institute of Geodesy and Geophysics,chinese {3. of sciences,Wuhan 43.077,china

The uppermost mantle is the key area for exchange of heat flux and material convection between the crust and lithospheric mantle. Spatial variations of lithospheric thinning and dynamic processes in the North china Craton could inevitably induce the velocity heterogeneity in the uppermost *** this study,we used Pn arrivals from permanent seismic stations in North china and surrounding regions to construct a tomographic image of the North china *** tomographic method with Pn travel time difference data were used to study the velocity variations in the uppermost *** velocities in the uppermost mantle varied significantly in the Eastern,Central and Western blocks of the North china *** suggests that the lithosphere beneath different blocks of the North china Craton have experienced distinct tectonic evolutions and dynamic processes since the Paleozoic. The current uppermost mantle has been imprinted by these tectonic and dynamic *** Pn velocities are prominent beneath the Bohai Bay Basin in the Eastern Block of the North china Craton,suggesting residuals of the Archean lithospheric *** the Tanlu Fault Zone and Bohai Sea,slow Pn velocities are present in the uppermost mantle,which can be attributed to significant lithospheric thinning and asthenospheric *** newly formed lithospheric mantle beneath Yanshan Mountain may be the dominant reason for the existence of slow Pn velocities in this ***,the ancient lower crust and lithospheric mantle already have been *** the Central Block,significant slow Pn velocities are present in Taihangshan Mountain,which also extends northward to the Yinchuan-Hetao Rift on the northern margin of the Ordos Block and Yinshan *** characteristic probably is a result of hot asthenospheric upwelling along the active tectonic boundary on the margin of the Western *** protracted thermal erosion and underplating of hot asthenospheric upwelling may induce

关键词： North china Craton Lithospheric thinning Uppermost mantle Pn travel time difference Cratonic destruction

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Modelling the geochemical response of CO2 injection into the Guantao Formation,North china Basin

Modelling the geochemical response of CO2 injection into the...

引用

中国科学院地质与地球物理研究所第十届(2010年度)学术年会

作者： Y.Li Key Laboratory of Engineering Geomechanics,institute of Geology and Geophysics & Graduate School,chinese academy of {3.,beijing,china Z.Pang Key Laboratory of Engineering Geomechanics,institute of Geology and Geophysics,chinese academy of {3.,beijing,china F.Yang & Z.Duan Key Laboratory of Engineering Geomechanics,institute of Geology and Geophysics & Graduate School,chinese academy of {3.,beijing,china

CO sequestration in saline aquifers is presently one of the most promising options for reducing anthropogenic emissions of *** order to study the reservoir responses to large volumes of CO injection,we performed a chemical thermodynamic modelling of the CO-water-rock interaction using PHREEQC 2.15 in the Guantao *** upper Tertiary saline aquifer,which is widely found in the North china Basin,has been chosen as the target reservoir for a pilot field test of CO injection. Five scenarios have been modelled with the addition of 9.68,14.24,27.82,69.92 and 196.8 mmol of CO, respectively,into 1 kg of formation water and 0.01 mol of *** show that pH decreased from 7.7 to 6.3.when 27.82 mmol(PCO2(g))=1 bar)of CO is injected,but Al,Si Ca,Mg,HCOand K will increase. The resulting solution is over-saturated with respect to minerals like dawsonite,illite and kaolinte.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

CMOS image sensor with optimal video sampling scheme

引用

Science china(Information sciences) 2012年第6期55卷 1429-1435页

作者： GUAN Ning,ZHANG Xu,LIU Bo,DONG Zan,HUANG BeiJu,GUI Yun,HAN JianQiang,WANG Yuan,ZHANG ZanYun & CHEN HongDa State Key Laboratory on Integrated Optoelectronics,institute of Semiconductors,chinese academy of Science,{3. 100083.china 1. State Key Laboratory on Integrated Optoelectronics Institute of Semiconductors Chinese Academy of Science Beijing 100083 China

Time-varying illumination on the focal plane is a three-dimensional *** sam-pling theory proves that the temporal resolution can be optimally improved by a factor of 2～(1/2) while the spatial resolution is reserved by changing the sampling *** on the theory,a prototype multi-field CMOS image sensor (CIS) is designed for a 0.3.-μm 2P4M CMOS *** pixels in 4×4-pixel clusters are assembled into 16 fields over the whole *** pins (resets and shutters) of pixels are separated which provides the ability of sampling the illumination with the optimal sampling scheme.

关键词： CMOS image sensors sampling methods deinterlacing high speed photography selective readout

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Changes of response dynamics and functional connectivity in barrel microcircuit associated with tactile frequency discrimination

Changes of response dynamics and functional connectivity in ...

引用

中国神经科学学会第九届全国学术会议暨第五次会员代表大会

作者： Jun ZHAO,Jin-Hui WANG~* State Key Laboratory of Brain and Cognitive sciences,institute of Biophysics,chinese {3. of sciences,beijing 100101,china

＜正＞Objective Cortical processing of somatosensory information is performed by a large population of neurons with complex dynamics and interactions in barrel *** evidences recently suggest that astrocytes receive surrounding synaptic inputs and participate in sensory information ***,the knowledge of population response dynamics and functional connectivity on processing tactile frequency information in barrel cortex at the level of neuro-astrocytic microcircuits remains comparably poor.A key step to understand the complex mechanisms of how these nerve cells work is measuring and analyzing the dynamic interactions in the local microcircuits in vivo under different conditions of sensory ***,we used two-photon calcium imaging to monitor the neuronal and astrocytic activities in barrel microcircuit,which would help to explore the processing mechanisms for tactile frequency *** FVB mice（20-3. PND）were anesthetized by the intraperitoneal injections of urethane.A population of neocortical cells was labeled by injecting the calcium indicator Oregon Green BAPTA-1 AM into layer I and *** were distinguished by co-injecting the astrocytic specific marker sulforhodamine 101. Population neuronal and astrocytic calcium signals in barrel microcircuit were simultaneously recorded in vivo by two-photon laser scanning microscopy with the resolution of individual *** of FVB mice in the contralateral sides of the imaged barrel cortices were deflected in a caudal-to-rostral direction by air-puffing during the experiments. Whisker deflections were done by giving the paired repetitive pulses of air-puffing（50 psi,50 ms）through a tiny steel tube that was mounted on a micromanipulator and controlled with costume-made Lab VIEW *** stimulus patterns were paired bursts that constituted of frequency patterns as 10 and 10 Hz（named as 10-to-10 Hz） or 8 and 12 Hz（i.e.,8-to-12 Hz）,closely to the natural frequenc

关键词： neuro-astrocyte network functional connectivity barrel cortex sensory processing two-photon calcium imaging

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：