检索结果-南通市图书馆

STOCHASTIC PROCESSES WITH TWO-PARAMETERS POSSESSING A SKOROHOD INTEGRAL REPRESENTATION

在线全文

学校读者我要写书评

暂无评论

数学理论与应用 2000年第1期20卷 1-7页

作者： A.N. Al-Hussaini(University of Alberta and University of Manitoba,Canada)Lingqi Tang(University of California,Los angeles,USA)

The purpose of this paper is to extend to results of [2] to the two-parameter case,i. e.,to obtain a necessary and sufficient condition for a stochastic process with two-parameters to be expressed as an indefi-nite Sk... 详细信息

关键词：双参数随机过程 Skorohod积分表示

Recent Progress on Organic Electronics at UCLA

在线全文

学校读者我要写书评

暂无评论

Recent Progress on Organic Electronics at UCLA

Highly efficient multi-metal catalysts for carbon dioxide reduction prepared from atomically sequenced metal organic frameworks

全国第八届有机固体电子过程暨华人有机光电功能材料学术讨论会

作者： Yang Yang~* (Department of Materials Science and Engineering,University of California, Los angeles,California,USA) Department of Materials Science and Engineering University of CaliforniaLos Angeles California USA

In this presentation,we will present the progress on organic electronics at UCLA in the past two *** exciting progresses have been demonstrated since ***,we have increased the polymer solar cell efficiencv from 4%to b...

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

Nano Research 2021年第2期14卷 493-500页

作者： Celia Castillo-Blas Consuelo Alvarez-Galvan Ines Puente-Orench Alba Garcia-Sanchez Freddy E.Oropeza Enrique Gutirrez-Puebla angeles Monge Victor A.de la Pena-O'hea Felipe Gandara Materials Science Institute of Madrid(CSIC) C/Sor Juana Ines de la Cruz 3Madrid 28049Spain Instituto de Catalisis y Petroleoquimica(CSIC) dM arie Curie 2Madrid 28049Spain Instituto de Ciencia de Materiales de Aragon Pedro Cerbuna 12Zaragoza 50009Spain Institut Laue Langevin 71 Avenue des Martyrs38042 GrenobleFrance Photoactivated Processes Unit IMDEA Energy Institute Mostoles Technology ParkAvenida Ramdn de la Sagra 3MostolesMadrid 28935Spain Department of Inorganic Chemistry University Autonomous of MadridC/Frandsco Tomdsy Valiente 7Madrid 28049Spain

The precise control on the combination of multiple metal atoms in the structure of metal-organic frameworks(MOFs)endowed by reticular chemistry,allows the obtaining of materials with compositions that are programmed for achieving enhanced *** present work illustrates how through the transformation of MOFs with desired arrangements of metal cations,multi-metal spinel oxides with precise compositions can be obtained,and used as catalyst precursor for the reverse water-gas shift *** differences in the spinel initial composition and structure,determined by neutron powder diffraction,influence the overall catalytic activity with changes in the process of in s itu formation of active,metal-oxide supported metal nanoparticles,which have been monitored and characterized with in situ X-ray diffraction and photoelectron spectroscopy studies.

关键词： reticular chemistry multi-metal metal-organic frameworks(MOFs) carbon dioxide reduction heterogeneous catalysis reverse water-gas shift in-situ X-ray photoelectron spectroscopy(XPS)

Energy-Efficient Methods for Highly Correlated Spatio-Temporal Environments in Wireless Sensor Network Communications

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

Wireless Sensor Network 2014年第5期6卷 67-92页

作者： Mohammad Abdul Azim Zeyar Aung Sofiane Moad Nizar Bouabdallah Mario E. Rivero-angeles Israel Leyva-Mayorga DYONISOS INRIA Rennes France Masdar Institute of Science and Technology Abu Dhabi UAE National Polytechnique Institute CIC-IPN Mexico City Mexico National Polytechnique Institute SEPI ESCOM-IPN Mexico City Mexico

Continuous-monitoring (CM) of natural phenomenon is one of the major streams of applications in wireless sensor networks (WSNs), where aggregation and clustering techniques are beneficial as correlation dominates in both spatial and temporal aspects of sensed phenomenon. Conversely, in Event Driven Reporting (EDR), the efficient transmission of sensitive data related to some predefined alarm cases is of major importance. As such, reporting latency is a more important performance parameter. However, in some applications, the transmission of both CM and EDR data is encouraged or even required. For either CM or EDR applications, system performance can be greatly improved when both the number of packets to be transmitted as well as the packet size is reduced. This is especially true for highly dense sensor networks where many nodes detect the same values for the sensed phenomenon. Building on this, this paper focuses on studying and proposing compression techniques to improve the system performance in terms of energy consumption and reporting latency in both CM and EDR applications. Furthermore, we extend our analysis to hybrid networks where CM and EDR are required simultaneously. Specifically, this paper presents a simple aggregation technique named smart aggregation (SAG) for the CM applications and an event driven scheme named compression cluster scheme in spatial correlated region (CC_SCR). The proposed SAG exploits both spatial and temporal correlations where CC_SCR exploits the spatial correlation of such networks by data compression. Rationalizing the developments is attained by simulations that compare energy efficiency of the proposed SAG with k-hop aggregation and CM based event driven reporting (CMEDR) schemes. Results of CC_SCR show that the technique may reduce the energy consumption drastically. In some specific cases the reduction becomes more than 10 times compared to a classical clustering scheme. Two different strategies for the transmission of event

关键词： Wireless Sensor Networks Aggregation Continuous-Monitoring Event Driven Reporting Data Compression Clustering

1.3 μm emitting SrF2：Nd^3＋ nanoparticles for high contrast in vivo imaging in the second biological window

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

Nano Research 2015年第2期8卷 649-665页

作者： Irene Villa Anna Vedda Irene Xochilt Cantarelli Marco Pedroni Fabio Piccinelli Marco Bettinelli Adolfo Speghini Marta Quintanilla Fiorenzo Vetrone Ueslen Rocha Carlos Jacinto Elisa Carrasco Francisco Sanz Rodrfguez angeles Juarranz Blanca del Rosal Dirk H. Ortgies Patricia Haro Gonzalez Jose Garcia Sole Daniel Jaque Garcia Department of Materials Science University of Milano-Bicocca Via R. Cozzi 55 20125 Milano Italy Dipartimento di Biotecnologie Universita di Verona and INSTM UdR Verona Strada le Grazie 15 37134 Verona Italy Institut National de la Recherche Scientifique-Energie Materiaux et Telecommunications Universitd du Quebec Varennes QC PQ J3X 1S2 Canada Grupo de Fotonica e Fluidos Complexos Instituto de Fisica Universidade Federal de Alagoas 57072-970 Maceio Alagoas Brazil Departamento de Biologia Facultad de Ciencias Campus de Cantoblanco Universidad Autdnoma de Madrid Madrid 28049 Spain Fluorescence Imaging Group Departamento de Fisica de Maferiales Facultad de Ciencias Campus de Cantoblanco Universidad Aut6noma de Madrid Madrid 28049 Spain

Novel approaches for high contrast, deep tissue, in vivo fluorescence biomedical imaging are based on infrared-emitting nanoparticles working in the so-called second biological window （1,000-1,400 nm）. This allows for the acquisition of high resolution, deep tissue images due to the partial transparency of tissues in this particular spectral range. In addition, the optical excitation with low energy （infrared） photons also leads to a drastic reduction in the contribution of autofluorescence to the in vivo image. Nevertheless, as is demonstrated here, working solely in this biological window does not ensure a complete removal of autofluorescence as the specimens diet shows a remarkable infrared fluorescence that extends up to 1,100 nm. In this work, we show how the 1,340 nm emission band of Nd3. ions embedded in SrF2 nanoparticles can be used to produce autofluorescence free, high contrast in vivo fluorescence images. It is also dem- onstrated that the complete removal of the food-related infrared autofluorescence is imperative for the development of reliable biodistribution studies.

关键词： fluorescence imaging rare earth dopednanoparticles nanomedicine

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

加州大学(洛杉矶)La Kretz大楼

城市环境设计 2006年第4期 100-107页

作者： University of California, Los angeles, California, USA USA University of California Los angeles California

La Kretz大楼是融合可持续设计理念与建筑弹性设计的典范。这栋教学兼办公楼既是洛杉矶盆地环境研究学会的总部,也为邻近的研究实验室服务。建筑坐落于研究区内硕果仅存的几块基地内部,顺应该地形并横跨在一个巨大的热能存储箱之上。为... 详细信息

La Kretz大楼是融合可持续设计理念与建筑弹性设计的典范。这栋教学兼办公楼既是洛杉矶盆地环境研究学会的总部,也为邻近的研究实验室服务。建筑坐落于研究区内硕果仅存的几块基地内部,顺应该地形并横跨在一个巨大的热能存储箱之上。为此,我们不得不设计一个特殊的地基结构。先进的设

关键词：加州大学弹性设计 La Kretz 办公楼

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

绿藻——刺激免疫反应的天然替抗选择

国外畜牧学（猪与禽） 2020年第7期40卷 93-94页

作者： Maria angeles Rodriguez Olivier Biannic 欧密斯(北京)贸易有限公司北京100081

大型藻类含有丰富的海藻硫酸多糖,该成分与动物多糖在结构上有一定相似性,具有独特的生物活性。文章介绍了海藻硫酸多糖在刺激肠道免疫反应方面的作用,为畜禽生产中替抗、减抗提供了一个新的解决方案。

关键词：海藻硫酸多糖肠道免疫反应抗生素

Hexameric Helicases And DNA Replication Licensing:Two Heads Are Better Than One

在线全文

学校读者我要写书评

暂无评论

Hexameric Helicases And DNA Replication Licensing:Two Heads ...

Control the invasive growth of gastrointestinal epithelial tumor

首届国际生物经济高层论坛

作者： Xiaojiang Chen Molecular and Computational Biology University of Southern California Los angeles California 90089 USA

＜正＞To replicate genomic DNA,the double helix DNA has to be unwound and opened up efficiently, a job done by protein molecular machines called *** are essential not only for passing genetic information but also for keeping the integrity of *** of hleicases has been associated with diseases such as cancer and premature *** helicases for cellular DNA replication（replicative helicases） assemble into ring-shaped complexes that regulate initiation and

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

Engineering Sciences 2014年第4期12卷 35-37页

作者： Wang Cunyu University of California Los Angeles California 90095-1668 USA

Invasive growth of epithelial tumor is a very complex process. Therefore,clarifying the molecular mechanisms of the invasive growth of tumor cells will help us find new targets for cancer therapy,and suppress tumor gr... 详细信息

关键词： gastrointestinal epithelial tumor control