检索结果-南通市图书馆

Clinical use of genotype to predict chemosensitivity in oligodendroglial tumors

中国神经肿瘤杂志 2006年第3期4卷 179-179页

作者： Walker C Haylock B Husband D joyce kA Fildes D jenkirtson MD Smith T Broome j du Plessis DG Warnke PC j.k. douglas laboratories Clatterbridge Hospital Bebington Wirral UK

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Prepulse inhibition (PPI) of tactile startle response in recombinant congenic strains of mice:QTL mapping and comparison with acoustic PPI

引用

journal of Genetics and Genomics 2008年第3期35卷 139-151页

作者： Adam Torkamanzehi Patricia Boksa Ridha joober University of Sistan and Baluchestan douglas Hospital Research Centre

Prepulse inhibition （PPI） of the startle response is a psychophysiological measure of sensorimotor gating believed to be cross-modal between different sensory systems. We analyzed the tactile startle response （TSR） and PPI of TSR （tPPI）, using light as a prepulse stimulus, in the mouse strains A/j and C57BL/6j and 36 recombinant congenic strains derived from them. Parental strains were significantly different for TSR, but were comparable for tPPI. Among the congenic strains, variation for TSR was significant in both genetic backgrounds, but that of tPPI was significant only for the C57BL/6j background. Provisional mapping for loci modulating TSR and tPPI was carried out. Using mapping data from our previous study on acoustic startle responses （ASR） and PPI of ASR （aPPI）, no common markers for aPPI and tPPI were identified. However, some markers were significantly associated with both ASR and TSR, at least in one genetic background. These results indicate cross-modal genetic regulation for the startle response but not for PPI, in these mouse strains.

关键词： tactile startle response prepulse inhibition (PPI) acoustic startle response recombinant congenic strains of mice QTL mapping microsatellite markers

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

An efficient method for unfolding kinetic pressure driven VISAR data

引用

High Power Laser Science and Engineering 2015年第3期3卷 50-58页

作者： M.Hess k.Peterson A.Harvey-Thompson Sandia National laboratories

Velocity Interferometer System for Any Reflector(VISAR) [Barker and Hollenbach, j. Appl. Phys. 43, 4669(1972)]is a well-known diagnostic that is employed on many shock physics and pulsed-power experiments. With the VISAR diagnostic, the velocity on the surface of any metal flyer can be found. For most experiments employing VISAR, either a kinetic pressure [Grady, Mech. Mater. 29, 181(1998)] or a magnetic pressure [Lemke et al., Intl j. Impact Eng. 38,480(2011)] drives the motion of the flyer. Moreover, reliable prediction of the time-dependent pressure is often a critical component to understanding the physics of these experiments. Although VISAR can provide a precise measurement of a flyer's surface velocity, the real challenge of this diagnostic implementation is using this velocity to unfold the timedependent pressure. The purpose of this paper is to elucidate a new method for quickly and reliably unfolding VISAR data.

关键词： laser driven blast wave pulsed-power VISAR

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

Recent laser upgrades at Sandia's Z-backlighter facility in order to accommodate new requirements for magnetized liner inertial fusion on the Z-machine

引用

High Power Laser Science and Engineering 2016年第4期4卷 1-12页

作者： jens Schwarz Patrick Rambo Darrell Armstrong Marius Schollmeier Ian Smith jonathan Shores Matthias Geissel Mark kimmel john Porter Sandia National laboratories

The Z-backlighter laser facility primarily consists of two high energy, high-power laser systems. Z-Beamlet laser(ZBL)(Rambo et al., Appl. Opt. 44, 2421(2005)) is a multi-kj-class, nanosecond laser operating at 1054 nm which is frequency doubled to 527 nm in order to provide x-ray backlighting of high energy density events on the Z-machine. Z-Petawatt(ZPW)(Schwarz et al., j. Phys.: Conf. Ser. 112, 032020(2008)) is a petawatt-class system operating at 1054 nm delivering up to 500 j in 500 fs for backlighting and various short-pulse laser experiments(see also Figure 10 for a facility overview). With the development of the magnetized liner inertial fusion(MagLIF) concept on the Z-machine, the primary backlighting missions of ZBL and ZPW have been adjusted accordingly. As a result, we have focused our recent efforts on increasing the output energy of ZBL from 2 to 4 kj at 527 nm by modifying the fiber front end to now include extra bandwidth(for stimulated Brillouin scattering suppression). The MagLIF concept requires a well-defined/behaved beam for interaction with the pressurized fuel. Hence we have made great efforts to implement an adaptive optics system on ZBL and have explored the use of phase plates. We are also exploring concepts to use ZPW as a backlighter for ZBL driven MagLIF experiments. Alternatively, ZPW could be used as an additional fusion fuel pre-heater or as a temporally flexible high energy pre-pulse. All of these concepts require the ability to operate the ZPW in a nanosecond long-pulse mode, in which the beam can co-propagate with ZBL. Some of the proposed modifications are complete and most of them are well on their way.

关键词： adaptive optics high energy lasers MagLIF OPCPA petawatt lasers SBS suppression

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

Terpenoid Biosynthesis and Specialized Vascular Cells of Conifer Defense

引用

journal of Integrative Plant Biology 2010年第1期52卷 86-97页

作者： katherine G. Zulak jrg Bohlmann Michael Smith laboratories University of British Columbia

Defense-related terpenoid biosynthesis in conifers is a dynamic process closely associated with specialized anatomical structures that allows conifers to cope with attack from many potential pests and pathogens. The constitutive and inducible terpenoid defense of conifers involves several hundred different monoterpenes, sesquiterpenes and diterpenes. Changing arrays of these many compounds are formed from the general isoprenoid pathway by activities of large gene families for two classes of enzymes, the terpene synthases and the cytochrome P450-dependent monooxygenases of the CYP720B group. Extensive studies have been conducted on the genomics, proteomics and molecular biochemical characterization of these enzymes. Many of the conifer terpene synthases are multi-product enzymes, and the P450 enzymes of the CYP720B group are promiscuous in catalyzing multiple oxidations, along homologous series of diterpenoids, from a broad spectrum of substrates. The terpene synthases and CYP720B genes respond to authentic or simulated insect attack with increased transcript levels, protein abundance and enzyme activity. The constitutive and induced oleoresin terpenoids for conifer defense accumulate in preformed cortical resin ducts and in xylem trauma-associated resin ducts. Formation of these resin ducts de novo in the cambium zone and developing xylem, following insect attack or treatment of trees with methyl jasmonate, is a unique feature of the induced defense of long-lived conifer trees.

关键词： Terpenoid Biosynthesis and Specialized Vascular Cells of Conifer Defense GPPS

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

Efficient Design of Multi-stage Cascade Waveband Separator

引用

光学学报 2003年第S1期23卷 621-622页

作者： Samrat Ganguly Rauf Izmailov Nan Tu Ting Wang NEC laboratories America Princeton USANEC Laboratories America Princeton USANEC Laboratories America Princeton USANEC Laboratories America Princeton USA

We propose a cascade system of filters for realizing a non-uniform waveband separation for optical networks. The use of such separation is required at the DEMUX stage in a optical OXC switching wavebands. The design o... 详细信息

关键词： of as Cr with be Efficient Design of Multi-stage Cascade Waveband Separator tree

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

China ASON Network Migration Scenarios and Their Quantitative Analysis

引用

光学学报 2003年第S1期23卷 667-668页

作者： Soichiro Araki Itaru Nishioka Yoshihiko Suemura Networking Research laboratories NEC CorporationNetworking Research Laboratories NEC CorporationNetworking Research Laboratories NEC Corporation

This paper proposes two migration scenarios from China ring networks to ASON mesh networks. In our quantitative analysis with ASON/GMPLS simulator, a subnetwork protection scheme achieved best balanced performance in ... 详细信息

关键词： ASON it from for be In of China ASON Network Migration Scenarios and Their Quantitative Analysis LSC

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

Highly efficient GaAs solar cells by limiting light emission angle

引用

Light(Science & Applications) 2013年第1期2卷 236-241页

作者： Emily D kosten jackson H Atwater james Parsons Albert Polman Harry A Atwater Thomas j.Watson laboratories of Applied Physics California Institute of TechnologyPasadenaCA 91125 USA Center for Nanophotonics FOM-Institute AMOLFScience Park 1041098XG AmsterdamThe Netherlands

In a conventional flat plate solar cell under direct sunlight,light is received from the solar disk,but is re-emitted *** isotropic emission corresponds to a significant entropy increase in the solar cell,with a corresponding drop in ***,using a detailed balance model,we show that limiting the emission angle of a high-quality GaAs solar cell is a feasible route to achieving power conversion efficiencies above 38%with a single *** highest efficiencies are predicted for a thin,light trapping cell with an ideal back reflector,though the scheme is robust to a non-ideal back *** with a conventional planar cell geometry illustrates that limiting emission angle in a light trapping geometry not only allows for much thinner cells,but also for significantly higher overall efficiencies with an excellent rear ***,we present ray-tracing and detailed balance analysis of two angular coupler designs,show that significant efficiency improvements are possible with these couplers,and demonstrate initial fabrication of one coupler design.

关键词： detailed balance GaAs solar cell light trapping photovoltaics two photon lithography

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

临界热流密度实验数据库的整理

引用

核动力工程 2006年第4期27卷 26-29,39页

作者：单建强 D．C．Groeneveld S．C．Cheng 西安交通大学 710049 Chalk River laboratories Atomic Energy of Canada Ltd. Chalk River. ON Canada K0J IJ0 University of Ottawa Department of Mechanical Engineering Ottawa ON Canada

采用切片法、相似度概念和热平衡以及进口温度检验法,对收集到的圆管垂直向上流动临界热流密度实验数据库进行了分析。分辨出坏数据库522点、实验坏点326点、重复点1640点、不满足热平衡点619点,进口温度错误10点,得到一个完善的CHF数... 详细信息

采用切片法、相似度概念和热平衡以及进口温度检验法,对收集到的圆管垂直向上流动临界热流密度实验数据库进行了分析。分辨出坏数据库522点、实验坏点326点、重复点1640点、不满足热平衡点619点,进口温度错误10点,得到一个完善的CHF数据库。

关键词：临界热流密度数据库相似度

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

A system-on-chip microwave photonic processor solves dynamic RF interference in real time with picosecond latency

引用

Light(Science & Applications) 2024年第1期13卷 91-102页

作者： Weipeng Zhang joshua C.Lederman Thomas Ferreira de Lima jiawei Zhang Simon Bilodeau Leila Hudson Alexander Tait Bhavin j.Shastri Paul R.Prucnal Department of Electrical and Computer Engineering Princeton UniversityPrinceton08544NJUSA NEC laboratories America Princeton08540NJUSA Department of Electrical and Computer Engineering Queen’s UniversityKingstonK7L 3N6OntarioCanada Department of Physics Engineering Physics and AstronomyQueen’s UniversityKingstonK7L 3N6OntarioCanada

Radio-frequency interference is a growing concern as wireless technology advances,with potentially life-threatening consequences like interference between radar altimeters and 5 G cellular *** transceivers mix signals with varying ratios over time,posing challenges for conventional digital signal processing(DSP)due to its high *** challenges will worsen as future wireless technologies adopt higher carrier frequencies and data ***,conventional DSPs,already on the brink of their clock frequency limit,are expected to offer only marginal speed *** paper introduces a photonic processor to address dynamic interference through blind source separation(BSS).Our system-on-chip processor employs a fully integrated photonic signal pathway in the analogue domain,enabling rapid demixing of received mixtures and recovering the signal-of-interest in under 15 *** reduction in latency surpasses electronic counterparts by more than three orders of *** complement the photonic processor,electronic peripherals based on field-programmable gate array(FPGA)assess the effectiveness of demixing and continuously update demixing weights at a rate of up to 305 *** compact setup features precise dithering weight control,impedance-controlled circuit board and optical fibre packaging,suitable for handheld and mobile *** experimentally demonstrate the processor’s ability to suppress transmission errors and maintain signal-to-noise ratios in two scenarios,radar altimeters and mobile *** work pioneers the real-time adaptability of integrated silicon photonics,enabling online learning and weight adjustments,and showcasing practical operational applications for photonic processing.

关键词： processor mixing dynamic

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

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：