检索结果-内蒙古大学图书馆

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2004年 3314卷 460-464页

作者： Zhang, Qiang Zhou, Dongsheng Wei, Xiaopeng Center for Advanced Design Technology University Key Lab of Information Science and Engineering Dalian University Dalian 116622 China School of Mechanical Engineering Dalian University of Technology Dalian 116024 China

The stability of non-autonomous delayed cellular neural networks is studied in this paper. By applying a delay differential inequality, a new sufficient condition which guarantees the global asymptotic stability is established. Since the condition does not impose differentiability on delay, it is less conservative than some established in the earlier references. © Springer-Verlag 2004.

关键词： Asymptotic stability

来源：评论

学校读者我要写书评

暂无评论

Vibro-acoustics of functionally graded porous beams subjected to thermo-mechanical loads

引用

Structural engineering and Mechanics 2022年第6期44卷 829-843页

作者： Chinnapandi, Lenin Babu Mailan Pitchaimani, Jeyaraj Eltaher, Mohamed A. ESchool of Mechanical Engineering Vellore Institute of Technology Tamil Nadu Chennai600127 India Electric Vehicles-Incubation Testing and Research Centre Vellore Institute of Technology Tamil Nadu Chennai600127 India Advanced Dynamics Lab Department of Mechanical Engineering National Institute of Technology Karnataka Mangalore Surathkal575 025 India Mechanical Design and Production Dept. Faculty of Engineering Zagazig University P.O. Box 44519 Zagazig Egypt P.O. Box 80204 Jeddah Saudi Arabia

This manuscript work presents a comprehensive continuum model capable to investigate the effect of porosity on vibro-acoustic behaviour of functionally graded (FG) beams resting on an elastic foundation subjected to thermal and mechanical loadings. Effects of uniform temperature rise and edge compressive load on the sound radiation characteristics are studied in a comparative manner. The numerical analysis is carried out by combining finite element method with Rayleigh’s integral. Detailed parametric studies are accomplished, and influences of power law index, porosity volume, porosity distribution and boundary conditions on the vibro-acoustic response characteristics are analyzed. It is found that the vibroacoustic response under mechanical edge compression is entirely different compared to from that under the thermal load. Furthermore, nature of grading of porosity affects the sound radiation behaviour for both the loads. The proposed model can be used to obtain the suppression performance of vibration and noise FG porous beams under thermal and mechanical loads. Copyright © 2022 Techno-Press, Ltd.

关键词： Finite element method

来源：评论

学校读者我要写书评

暂无评论

The first chiral cerium halide towards circularly-polarized luminescence in the UV region

引用

Science China Chemistry 2024年第6期67卷 1961-1968页

作者： Xinyi Niu Zhichao Zeng Zhaoyu Wang Haolin Lu Bing Sun Hao-Li Zhang Yongsheng Chen Yaping Du Guankui Long Tianjin Key Lab for Rare Earth Materials and Applications Renewable Energy Conversion and Storage CenterSmart Sensing Interdisciplinary Science CenterSchool of Materials Science and EngineeringNational Institute for Advanced MaterialsNankai UniversityTianjin300350China Tianjin Key Lab for Rare Earth Materials and Applications Center for Rare Earth and Inorganic Functional MaterialsHaihe Laboratory of Sustainable Chemical TransformationsSmart Sensing Interdisciplinary Science CenterSchool of Materials Science and EngineeringNational Institute for Advanced MaterialsNankai UniversityTianjin300350China State Key Laboratory of Applied Organic Chemistry Key Laboratory of Special Function Materials and Structure Design(Ministry of Education)College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China The Centre of Nanoscale Science and Technology and State Key Laboratory of Elemento-Organic Chemistry Frontiers Science Center for New Organic MatterCollege of ChemistryNankai UniversityTianjin300071China

Chiral organic-inorganic hybrid metal halides(OIHMHs)have attracted broader scientific community recently in spin lightemitting diodes,and circularly polarized light-emitting ***,the emission peaks of the reported chiral OIHMHs mainly locate in the visible region,and chiral OIHMH with ultraviolet(UV)circularly polarized luminescence(CPL)has been rarely *** fill this gap,cerium,a unique rare-earth(RE)element with tunable luminescence from UV to the visible region owing to the 4 f-related electronic transition,was introduced to construct the first RE-based chiral OIHMHs,R/*** chirality is successfully transferred from the chiral organic cations to the inorganic cerium chloride framework in R/S-MCC,as confirmed by the single crystal structures,circular dichroism,and *** emission spectra of R/S-MCC are in the UV region,originating from the characteristic d-f transition of Ce^(3+),which making the Ce-based metal halides are ideal candidates towards CPL light sources in the UV ***,R-and S-MCC are the first RE-based OIHMHs,also the first chiral metalhalides with UV *** work opens a new avenue for the development of the chiral OIHMH family towards RE-based chiral *** RE-based chiral metal halides couple the unique and superior optical,electrical,magnetic,and spintronic properties of RE elements with chirality could accelerate the development of chiral optoelectronics and spintronics toward real applications.

关键词： chiral rare-earth halide ultraviolet circularly-polarized luminescence d-f transition rare-earth halide perovskite chiral perovskite

来源：评论

学校读者我要写书评

暂无评论

Parallel processor system specific for Monte Carlo analysis based on ring bus architecture 6

Parallel processor system specific for Monte Carlo analysis ...

引用

6th International Workshop on Computational Electronics, IWCE 1998

作者： Kurino, H. Ono, T. Kuroishi, N. Kawata, T. Miyakawa, N. Fukase, M. Aibara, R. Koyanagi, M. Intelligent System Design Lab. Dept. of Machine Intelligent and Systems Engineering Graduate School of Engineering Tohoku University Aoba-yama 01 Sendai980-8579 Japan Advanced Technology and Engineering Center Fuji Xerox Co. Ltd. Japan Faculty of Science and Technology Hirosaki University Japan Information Processing Center Hiroshima University Japan

ISBN: (纸本)0780343697

We have developed a new parallel processor system specific for the MC analysis, to dramatically reduce the calculation time. Our parallel processor system is based on ring bus architecture. The RISC micro processor chip, which contains a ring bus interface unit (RBIU), a floating point arithmetic unit (FAU) and so on, was also developed for our system. Speed up ratio compared with a single processor reached to 13.5 at 23 PEs. © 1996 IEEE.

关键词： Digital arithmetic

来源：评论

学校读者我要写书评

暂无评论

Information Technology Systems at the sharp end of medication therapy management

引用

Proceedings of the Human Factors and Ergonomics Society Annual Meeting 2019年第1期63卷 698 - 702页

作者： Reicelis Casares Li Rodrigo Arcuri Marques Pereira Alessandro Jatobá Mario Cesar Rodríguez Vidal Paulo Victor Rodrigues de Carvalho Kelly Grindrod Catherine Burns Advanced Interface Design Lab Systems Design Engineering University of Waterloo Ontario Canada Advanced Interface Design Lab Systems Design Engineering University of Waterloo Ontario CanadaComplex Systems Ergonomics Research Unit (GENTE) Federal University of Rio de Janeiro Brazil Oswaldo Cruz Foundation (FIOCRUZ) Rio de Janeiro Brazil Complex Systems Ergonomics Research Unit (GENTE) Federal University of Rio de Janeiro Brazil Nuclear Engineering Institute (IEN) Rio de Janeiro Brazil School of Pharmacy University of Waterloo Ontario Canada

This study explored how to inform the design of information systems for medication therapy management, in the context of the southwestern Ontario health system. The data collection comprised document analysis, interviews, and process mapping, and the analysis of previous interview records. The Functional Resonance Analysis Method (FRAM) was used for data analysis to identify the effects of functional variability in system outcomes, and to propose ways to redesign future systems. The results from the FRAM showed that shortcomings in the information systems require users to adapt in many ways. While these adjustments are essential to delivering care in everyday practice, they may lose their effectiveness in the face of specific situations, creating brittleness and risk of adverse outcomes as users are led to make challenging decisions.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The Influence of Ejector’s Structure Parameters on the Performance of Ejector Refrigeration System

引用

Procedia engineering 2017年 205卷 2683-2690页

作者： Wenju Hu Meng-yuan Wang Jin-zhe Nie Yan Gao Qun-li Zhang Beijing Key Lab of HVAC Beijing University of Civil Engineering and Architecture Beijing 100044 China Beijing Advanced Innovation Center for Future Urban Design Beijing University of Civil Engineering and Architecture Beijing 100044 China

Ejector refrigeration system has been used popularly for its simple structure, fewer moving parts and fully use of low grade heat. Ejector is the main part of the ejector refrigeration system, and the structure and size design of ejector strongly affect the performance of refrigeration system. Mathematical model of an ejector refrigeration system was developed and the influence of different ratio of throat area and mixed area on performance of refrigeration system was analyzed. Results show that under the given operating condition there exists an optimal ratio of injector nozzle throat area to the cylinder area of the mixing section making the best performance for the refrigeration system. When the optimal ratio value kept, the cooling capacity, heat requirement, injection coefficient and COP reach the maximum value at the optimal ratio value while the pump power reaches the lowest value.

关键词： Ejector refrigeration system Coefficient of performance

来源：评论

学校读者我要写书评

暂无评论

Next generation more-electric aircraft: a potential application for hts superconductors

Next generation more-electric aircraft: a potential applicat...

引用

作者： Luongo, Cesar A. Masson, Philippe J. Nam, Taewoo Mavris, Dimitri Kim, Hyun D. Brown, Gerald V. Waters, Mark Hall, David Department of Mechanical Engineering Florida AandM-Florida State University College of Engineering Tallahassee FL United States ITER IO France Center for Advanced Power Systems Tallahassee FL United States Advanced Magnet Lab. Palm Bay FL United States Department of Aeronautical Engineering Aerospace Systems Design Laboratory Georgia Institute of Technology Atlanta GA United States NASA Glenn Research Center Cleveland OH United States DHC Engineering San Luis Obispo CA United States

Sustainability in the aviation industry calls for aircraft that are significantly quieter and more fuel efficient than today's fleet. Achieving this will require revolutionary new concepts, in particular, electric propulsion. Superconducting machines offer the only viable path to achieve the power densities needed in airborne applications. This paper outlines the main issues involved in using superconductors for aeropropulsion. We review our investigation of the feasibility of superconducting electric propulsion, which integrate for the first time, the multiple disciplines and areas of expertise needed to design electric aircraft. It is shown that superconductivity is clearly the enabling technology for the more efficient turbo-electric aircraft of the future.© 2009 IEEE.

关键词： Electric propulsion

来源：评论

学校读者我要写书评

暂无评论

Matthew effect:General design strategy of ultra-fluorogenic nanoprobes with amplified dark–bright states in aggregates

Aggregate

引用

Aggregate 2024年第2期5卷 482-492页

作者： Shinsuke Segawa Xinwen Ou Tianruo Shen Tomohiro Ryu Yuki Ishii Herman H.Y.Sung Ian D.Williams Ryan T.K.Kwok Ken Onda Kiyoshi Miyata Xuewen He Xiaogang Liu Ben Zhong Tang Translational and Advanced Bioimaging Laboratory Department of Chemical and Biological EngineeringSchool of EngineeringThe Hong Kong University of Science and TechnologyKowloonHong KongChina Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced StudyThe Hong Kong University of Science and TechnologyKowloonHong KongChina Science Mathematics and Technology ClusterSingapore University of Technology and DesignSingaporeSingapore Department of Chemistry Graduate School of ScienceKyushu UniversityNishi-kuFukuokaJapan The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhouJiangsuChina School of Science and Engineering Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong KongShenzhenGuangdongChina

Fluorescence imaging,a key technique in biological research,frequently utilizes fluorogenic probes for precise imaging in living *** is an effective emission quencher in fluorogenic probe designs,which can be selectively damaged upon bioorthogonal click reactions,leading to considerable emission *** significant efforts to increase the emission enhancement ratio(I_(AC)/I_(BC))of tetrazine-functionalized fluorogenic probes,the influence of molecular aggregation on the emission properties has been largely overlooked in these probe *** this study,we reveal that an ultrahigh I_(AC)/I_(BC)can be realized in the aggregate system when tetrazine is paired with aggregation-induced emission(AIE)*** amplifies its quenching efficiency upon aggregation and drastically reduce background *** click reactions damage tetrazine and trigger significant AIE,leading to considerably enhanced I_(AC)/I_(BC).We further showcase the capability of these ultra-fluorogenic systems in selective imaging of multiple organelles in living *** term this unique fluorogenicity of AIE luminogen-quencher complexes with amplified dark-bright states as“Matthew effect”in aggregate emission,potentially providing a universal approach to attain ultrahigh I_(AC)/I_(BC)in diverse fluorogenic systems.

关键词： aggregation-induced emission bioorthogonal chemistry click chemistry fluorescence imaging tetrazine

来源：评论

学校读者我要写书评

暂无评论

Generating broad-spectrum tolerance to ALS-inhibiting herbicides in rice by base editing

引用

Science China(Life Sciences) 2021年第10期64卷 1624-1633页

作者： Rui Zhang Sha Chen Xiangbing Meng Zhuangzhuang Chai Delin Wang Yuge Yuan Kunling Chen Linjian Jiang Jiayang Li Caixia Gao State Key Laboratory of Plant Cell and Chromosome Engineering Center for Genome EditingInstitute of Genetics and Developmental BiologyInnovation Academy for Seed DesignChinese Academy of SciencesBeijing 100101China College of Advanced Agricultural Sciences University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyInnovation Academy for Seed DesignChinese Academy of SciencesBeijing 100101China Key Lab of Pest Monitoring and Green Management MOA/Department of Plant PathologyCollege of Plant ProtectionChina Agricultural UniversityBeijing 100193China

Herbicide-tolerant rice varieties generated by genome editing are highly desirable for weed *** have used a cytosine base editor to create a series of missense mutations in the P171 and/or G628 codons of the acetolactate synthase(ALS)gene to confer herbicide tolerance in *** four different missense mutations in the P171 codon,P171S,P171A,P171Yand P171F,exhibited different patterns of tolerance towards five representative herbicides from five chemical families of ALS *** example,P171S and P171A had lower levels of tolerance than P171Y and P171F to bispyribac but not to the other ***,a novel triple mutant(P171F/G628E/G629S)had the highest tolerance to all five tested *** trials showed that both P171F and P171F/G628E/G629S could potentially be used with *** work illustrates an effective way of using base editing to generate herbicide tolerance in elite rice varieties.

关键词： base editing herbicide tolerance rice acetolactate synthase(ALS)

来源：评论

学校读者我要写书评

暂无评论

Scenario Mapping with Work Domain Analysis

引用

Proceedings of the Human Factors and Ergonomics Society Annual Meeting 2001年第4期45卷 424 - 428页

作者： Catherine M. Burns David J. Bryant Bruce A. Chalmers Advanced Interface Design Lab Systems Design Engineering University of Waterloo Waterloo Ontario Canada Humansystems Incorporated Guelph Ontario Canada Naval Command and Control Defence Research Establishment Atlantic Dartmouth Nova Scotia Canada

Work domain analysis is an approach that is moving from research to practical usage. Being highly analytical and time-intensive in its early stages, clients will search for early indications that the analysis is on track and relevant. This paper presents one approach for validating a work domain analysis by mapping the action patterns of operators against the work domain space developed by the analysis. This approach provides some validation the analysis, shows the use of the work domain over time in three dimensions, and provides a substantial link between the work analysis approach and traditional task-based approaches.

关键词：

来源：评论

学校读者我要写书评

暂无评论

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

请选择保存的检索档案：

请选择收藏分类：

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

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

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：