检索结果-内蒙古大学图书馆

SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, IMOC 2015

作者： Neto, Alfrêdo Gomes E Silva, Jefferson C. De Carvalho, Joabson Nogueira Cruz, Josiel Do Nascimento Ferreira, Hillner De Paiva Almeida Group of Telecom. and Applied Electromagnetism Federal Inst. of Educ. Science and Technology of Paraíba GTEMA IFPB João PessoaPB Brazil Post-Graduate Program in Electrical Engineering Federal University of Campina Grande Campina Grande Brazil

ISBN: (纸本)9781467394925

In this paper the resonant behavior of frequency selective surfaces, FSS, using matryoshka geometry is analyzed considering polarizations x and y. The basics of the FSS using matryoshka geometry are described for usual and open cases, including an expression to estimate the first resonant frequency. Initially, the FSS with two concentric square rings is considered and its resonant behavior analyzed. Then, the resonant behavior of FSS with two rings matryoshka geometry is examined. The analysis is based on the electric current distribution obtained using the commercial software ANSYS-Designer. With a better understanding of the resonance nature in matryoshka geometry the design parameters can be better adjusted and desired frequency responses properly achieved. © 2015 IEEE.

关键词： Geometry

来源：评论

学校读者我要写书评

暂无评论

Commentaries on Viewpoint: V̇o2peak is an acceptable estimate of cardiorespiratory fitness but not V̇o2max

引用

Journal of applied physiology (Bethesda, Md. : 1985) 2018年第1期125卷 233-240页

作者： Paulo Azevedo Dharini M. Bhammar Tony G. Babb T. Scott Bowen Klaus K. Witte Harry B. Rossiter Julien V. Brugniaux Ben D. Perry Ricardo Dantas de Lucas Tiago Turnes Jeann L. Sabino-Carvalho Thiago Ribeiro Lopes Rodrigo Zacca Ricardo J. Fernandes Greg L. McKie Tom J. Hazell Lucas Helal Anderson Donelli da Silveira Craig Ryan McNulty Robert Andrew Roberg Tom E. Nightingale Abdullah A. Alrashidi Evgeny Mashkovskiy Andrei Krassioukov Pierre Clos Davy Laroche Benjamin Pageaux David C. Poole Andrew M. Jones Gustavo Z. Schaun Diego Santos de Souza Tatiane de Oliveira Barreto Lopes Mary Vagula Li Zuo Tingyang Zhao Exercise Physiology Studies and Research Group (GEPEFEX) Federal University of São Paulo Santos São Paulo Brazil Kinesiology and Nutrition Sciences School of Allied Health Sciences University of Nevada-Las Vegas Las Vegas NV Institute for Exercise and Environmental Medicine Texas Health Presbyterian Hospital Dallas and UT Southwestern Medical Center Dallas TX Faculty of Biological Sciences University of Leeds Leeds UK Faculty of Medicine University of Leeds Leeds UK Rehabilitation Clinical Trials Center Division of Respiratory and Critical Care Physiology and Medicine Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center Torrance CA School of Science & Health Western Sydney University Australia Physical Effort Laboratory Sports Centre Federal University of Santa Catarina Brazil NeuroVASQ – Integrative Physiology Laboratory Faculty of Physical Education University of Brasília Brasília DF Brazil Federal University of São Paulo São Paulo SP Brazil Centre of Research Education Innovation and Intervention in Sport Faculty of Sport University of Porto Porto Portugal Porto Biomechanics Laboratory University of Porto Porto Portugal CAPES Foundation Ministry of Education of Brazil Brasília Brazil Department of Kinesiology and Physical Education Faculty of Science Wilfrid Laurier University Waterloo Ontario Canada Graduate Program in Cardiology and Cardiovascular Sciences School of Medicine Hospital de Clinicas de Porto Alegre Universidade Federal do Rio Grande do Sul Exercise Pathophysiology Laboratory Hospital de Clinicas de Porto Alegre Exercise Cardiology Laboratory Hospital de Clinicas de Porto Alegre Queensland University of Technology Brisbane QLD Australia International Collaboration on Repair Discoveries Vancouver British Columbia Canada Faculty of Medicine Division of Physical Medicine and Rehabilitation University of British Columbia Vancouver British Columbia Canada Faculty of Medicine Experimental Medicine University of Brit

来源：评论

学校读者我要写书评

暂无评论

A productivity analysis considering environmental pollution and diseases in China

引用

Journal of Economic Structures 2015年第1期4卷 1-19页

作者： Cao, Huijuan Fujii, Hidemichi Managi, Shunsuke Graduate School of Environmental Studies Tohoku University 6-6-20 Aramaki-Aza Aoba Sendai 980-8579 Aoba-Ku Japan Graduate School of Fisheries Science and Environmental Studies Nagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan Global Environmental Engineering Program School of Engineering Kyushu University 744 Motooka Nishi-ku Fukuoka 819-0395 Japan Queensland University of Technology Level 8 Z Block Gardens Point 2 George St Brisbane QLD 4000 Australia

environmental pollution and human health problems are becoming serious issues in China. This research focuses on regional differences in productive inefficiencies and attempts to clarify the determinants of inefficiency, accounting economic, environmental and health-related factors. Our dataset includes information of 29 areas in China from 2003 to 2009. We find that after accounting for environmental pollution and health impacts, the productive inefficiency of the examined areas reduced;this result holds for both the national and provincial levels. Our results imply that government efforts to improve social welfare should emphasize increases in foreign direct investment and private medical expenditures. JEL codes: I15, O44, O47, R11. © 2015, Cao et al.

关键词： China Disease environmental pollution Regional disparity Weighted Russell directional distance function

来源：评论

学校读者我要写书评

暂无评论

An embedded asterisk platform instructional design to teach voice over IP in information technology undergraduate courses: Using raspberry PI and asterisk to build an embedded portable didactic tool 7

An embedded asterisk platform instructional design to teach ...

引用

7th International Conference on Computer Supported Education, CSEDU 2015

作者： Dias, M.C. Bezerra, L.C. Morais, D. Gabi, C.F. Perkusich, A. Electrical Engineering Coordination Laboratory of Telephony and Convergent Networks - LTCON Federal Institute of Education Science and Technology of Paraíba - IFPB João Pessoa Brazil Post-graduate Program in Electrical Engineering - PpgEE - COPELE Electrical Engineering Department Federal University of Campina Grande - UFCG Campina Grande Brazil

ISBN: (纸本)9789897581076

This paper shows the building of an embedded Asterisk platform as a key technique for providing Information technology classes with an extra laboratorial environment for learning Voice over Internet Protocol. Besides building the platform, the students are asked to mount a functional telephony system with it that meets the criteria of low cost, low building complexity and high adaptability to convergent networks. The Raspberry PI version B was the board used to provide portability for the students to work outside the laboratory environment. Asterisk was presented as a useful tool on which the students could create a flexible system that could be easily deployed on convergent networks. This work was developed in the Telephony subject for the Electrical Engineering and the Telecommunications Systems undergraduate courses from the Federal Institute of Education, science and technology of Paraíba - IFPB, and presented good results in the students' learning achievements.

关键词： Students

来源：评论

学校读者我要写书评

暂无评论

Archimedean Spiral Multi-resonator for Chipless RFID Tag Using Frequency-Coded Decimal Method

Archimedean Spiral Multi-resonator for Chipless RFID Tag Usi...

引用

SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference

作者： Hillner de P. A. Ferreira Alexandre J. R. Serres Georgina Karla de F. Serres Francisco M. de Assis Alfredo Gomes Neto Post-Graduate Program in Electrical Engineering Federal University of Campina Grande Group of Telecom. and Applied Electromagnetism Federal Inst. of Educ. Science and Technology of Paraiba

ISBN: (纸本)9781467394932

A compact electromagnetic multi-resonator is presented in this paper using a new technique for chipless RFID tag data encoding. Employing Archimedean spirals, the information is applied into the spectral signature shifting resonant frequencies in several positions. The multi-resonator tag proposed operates in microwave band (between 3.0-7.0GHz) and has a coding data capacity of up to 100 decimal numbers for two resonant frequencies. The simulated and measured results show a good concordance and a great perspective to use in low-cost RFID chipless tag applications.

关键词： RFID chipless Frequency-Coded Decimal Archimedean spiral Multi-resonator

来源：评论

学校读者我要写书评

暂无评论

An isolated microlens observed from K2, Spitzer and earth

arXiv

引用

arXiv 2017年

作者： Zhu, Wei Udalski, A. Huang, C.X. Novati, S. Calchi Sumi, T. Poleski, R. Skowron, J. Mróz, P. Szymanski, M.K. Soszynski, I. Pietrukowicz, P. Koz lowski, S. Ulaczyk, K. Pawlak, M. Beichman, C. Bryden, G. Carey, S. Gaudi, B.S. Gould, A. Henderson, C.B. Shvartzvald, Y. Yee, J.C. Bond, I.A. Bennett, D.P. Suzuki, D. Rattenbury, N.J. Koshimoto, N. Abe, F. Asakura, Y. Barry, R.K. Bhattacharya, A. Donachie, M. Evans, P. Fukui, A. Hirao, Y. Itow, Y. Kawasaki, K. Li, M.C.A. Ling, C.H. Masuda, K. Matsubara, Y. Miyazaki, S. Munakata, H. Muraki, Y. Nagakane, M. Ohnishi, K. Ranc, C. Saito, To. Sharan, A. Sullivan, D.J. Tristram, P.J. Yamada, T. Yonehara, A. Department of Astronomy Ohio State University 140 W. 18th Ave. ColumbusOH43210 United States Canadian Institute for Theoretical Astrophysics University of Toronto 60 St George Street TorontoONM5S 3H8 Canada Warsaw University Observatory Al. Ujazdowskie 4 Warszawa00-478 Poland Department of Physics Kavli Institute for Astrophysics and Space Research Massachusetts Institute of Technology CambridgeMA02139 United States IPAC Mail Code 100-22 Caltech 1200 E. California Blvd. PasadenaCA91125 United States 84084 Italy Department of Earth and Space Science Graduate School of Science Osaka University 1-1 Machikaneyama Toyonake Osaka560-0043 Japan Department of Physics University of Warwick Gibbert Hill Road CoventryCV4 7AL United Kingdom NASA Exoplanet Science Institute MS 100-22 California Institute of Technology PasadenaCA91125 United States Jet Propulsion Laboratory California Institute of Technology 4800 Oak Grove Drive PasadenaCA91109 United States Spitzer Science Center MS 220-6 California Institute of Technology PasadenaCA United States Korea Astronomy and Space Science Institute 776 Daedeokdae-ro Yuseong-Gu Daejeon34055 Korea Republic of Max-Planck-Institute for Astronomy Königstuhl 17 Heidelberg69117 Germany NASA Postdoctoral Program Smithsonian Astrophysical Observatory 60 Garden St. CambridgeMA02138 United States Institute for Natural and Mathematical Sciences Massey University North Shore Mail Centre Private Bag 102904 Auckland0745 New Zealand Laboratory for Exoplanets and Stellar Astrophysics NASA/Goddard Space Flight Center GreenbeltMD20771 United States Institute of Space and Astronautical Science Japan Aerospace Exploration Agency 3-1-1 Yoshinodai Chuo Sagamihara Kanagawa252-5210 Japan Department of Physics University of Auckland Private Bag 92019 Auckland New Zealand Institute of Space-Earth Environmental Research Nagoya University Furo-cho Chikusa Nagoya Aichi464-8601 Japan Department of Physics Unive

We present the result of microlensing event MOA-2016-BLG-290, which received observations from the two-wheel Kepler (K2), Spitzer, as well as ground-based observatories. A joint analysis of data from K2 and the ground leads to two degenerate solutions of the lens mass and distance. This degeneracy is effectively broken once the (partial) Spitzer light curve is included. Altogether, the lens is found to be an extremely low-mass star located in the Galactic bulge. MOA-2016-BLG-290 is the first microlensing event for which we have signals from three well-separated (∼ 1 AU) locations. It demonstrates the power of two-satellite microlensing experiment in reducing the ambiguity of lens properties, as pointed out independently by S. Refsdal and A. Gould several decades ago. Copyright © 2017, The Authors. All rights reserved.

关键词： Geometrical optics

来源：评论

学校读者我要写书评

暂无评论

Equivalency of the diagnostic accuracy of the PHQ-8 and PHQ-9: a systematic review and individual participant data meta-analysis (vol 50, pg 1368, 2020)

引用

PSYCHOLOGICAL MEDICINE 2020年第16期50卷 2816-2816页

作者： Wu, Yin Levis, Brooke Riehm, Kira E. Saadat, Nazanin Levis, Alexander W. Azar, Marleine Rice, Danielle B. Boruff, Jill Cuijpers, Pim Gilbody, Simon Ioannidis, John P. A. Kloda, Lorie A. McMillan, Dean Patten, Scott B. Shrier, Ian Ziegelstein, Roy C. Akena, Dickens H. Arroll, Bruce Ayalon, Liat Baradaran, Hamid R. Baron, Murray Bombardier, Charles H. Butterworth, Peter Carter, Gregory Chagas, Marcos H. Chan, Juliana C. N. Cholera, Rushina Conwell, Yeates de Manvan Ginkel, Janneke M. Fann, Jesse R. Fischer, Felix H. Fung, Daniel Gelaye, Bizu Goodyear-Smith, Felicity Greeno, Catherine G. Hall, Brian J. Harrison, Patricia A. Harter, Martin Hegerl, Ulrich Hides, Leanne Hobfoll, Stevan E. Hudson, Marie Hyphantis, Thomas Inagaki, Masatoshi Jette, Nathalie Khamseh, Mohammad E. Kiely, Kim M. Kwan, Yunxin Lamers, Femke Liu, Shen-Ing Lotrakul, Manote Loureiro, Sonia R. Lowe, Bernd McGuire, Anthony Mohd-Sidik, Sherina Munhoz, Tiago N. Muramatsu, Kumiko Osorio, Flavia L. Patel, Vikram Pence, Brian W. Persoons, Philippe Picardi, Angelo Reuter, Katrin Rooney, Alasdair G. Santos, Ina S. Shaaban, Juwita Sidebottom, Abbey Simning, Adam Stafford, Lesley Sung, Sharon Tan, Pei Lin Lynnette Turner, Alyna van Weert, Henk C. White, Jennifer Whooley, Mary A. Winkley, Kirsty Yamada, Mitsuhiko Benedetti, Andrea Thombs, Brett D. [a1]Lady Davis Institute for Medical Research Jewish General Hospital Montréal Québec Canada [a2]Department of Psychiatry McGill University Montréal Québec Canada [a3]Department of Epidemiology Biostatistics and Occupational Health McGill University Montréal Québec Canada [a4]Department of Psychology McGill University Montréal Québec Canada [a5]Schulich Library of Physical Sciences Life Sciences and Engineering McGill University Montreal Quebec Canada [a6]Department of Clinical Neuro and Developmental Psychology Amsterdam Public Health Research Institute Vrije Universiteit Amsterdam the Netherlands [a7]Hull York Medical School and the Department of Health Sciences University of York Heslington York UK [a8]Department of Medicine Department of Health Research and Policy Department of Biomedical Data Science Department of Statistics Stanford University Stanford California USA [a9]Library Concordia University Montréal Québec Canada [a10]Department of Community Health Sciences University of Calgary Calgary Alberta Canada [a11]Hotchkiss Brain Institute and O’Brien Institute for Public Health University of Calgary Calgary Alberta Canada [a12]Department of Medicine Johns Hopkins University School of Medicine Baltimore Maryland USA [a13]Department of Psychiatry Makerere University College of Health Sciences Kampala Uganda [a14]Department of General Practice and Primary Health Care University of Auckland Auckland New Zealand [a15]Louis and Gabi Weisfeld School of Social Work Bar Ilan University Ramat Gan Israel [a16]Endocrine Research Center Institute of Endocrinology and Metabolism Iran University of Medical Sciences Tehran Iran [a17]Ageing Clinical & Experimental Research Team Institute of Applied Health Sciences School of Medicine Medical Sciences and Nutrition University of Aberdeen Aberdeen Scotland UK [a18]Department of Medicine McGill University Montréal Québec Canada [a19]Department of Rehabilitation Medicine University of Washington S

BackgroundItem 9 of the Patient Health Questionnaire-9 (PHQ-9) queries about thoughts of death and self-harm, but not suicidality. Although it is sometimes used to assess suicide risk, most positive responses are not associated with suicidality. The PHQ-8, which omits Item 9, is thus increasingly used in research. We assessed equivalency of total score correlations and the diagnostic accuracy to detect major depression of the PHQ-8 and *** conducted an individual patient data meta-analysis. We fit bivariate random-effects models to assess diagnostic ***16 742 participants (2097 major depression cases) from 54 studies were included. The correlation between PHQ-8 and PHQ-9 scores was 0.996 (95% confidence interval 0.996 to 0.996). The standard cutoff score of 10 for the PHQ-9 maximized sensitivity + specificity for the PHQ-8 among studies that used a semi-structured diagnostic interview reference standard (N = 27). At cutoff 10, the PHQ-8 was less sensitive by 0.02 (−0.06 to 0.00) and more specific by 0.01 (0.00 to 0.01) among those studies (N = 27), with similar results for studies that used other types of interviews (N = 27). For all 54 primary studies combined, across all cutoffs, the PHQ-8 was less sensitive than the PHQ-9 by 0.00 to 0.05 (0.03 at cutoff 10), and specificity was within 0.01 for all cutoffs (0.00 to 0.01).ConclusionsPHQ-8 and PHQ-9 total scores were similar. Sensitivity may be minimally reduced with the PHQ-8, but specificity is similar.

关键词： Depression diagnostic accuracy individual participant data meta-analysis meta-analysis PHQ-8 PHQ-9 screening systematic review

来源：评论

学校读者我要写书评

暂无评论

Analysis of the resonant behavior of FSS using matryoshka geometry

Analysis of the resonant behavior of FSS using matryoshka ge...

引用

SBMO/IEEE MTT-S International Conference on Microwave and Optoelectronics (IMOC)

作者： Alfrêdo Gomes Neto Jefferson C. e Silva Joabson Nogueira de Carvalho Josiel Do Nascimento Cruz Hillner De Paiva Almeida Ferreira Group of Telecom. and Applied Electromagnetism Federal Inst. of Educ. Science and Technology of Paraiba Joao Pessoa PB Brazil Post-Graduate Program in Electrical Engineering Federal University of Campina Grande Brazi Brazil Group of Telecom. and Applied Electromagnetism Federal Inst. of Educ. Science and Technology of Paraíba Brazil Post-Graduate Program in Electrical Engineering Universidade Federal de Campina Grande Campina Grande PB BR

ISBN: (纸本)9781467394932

关键词： Frequency selective surfaces Geometry Resonant frequency Current Frequency response Europe

来源：评论

学校读者我要写书评

暂无评论

Solid electrolyte for solid-state batteries: Have lithium-ion batteries reached their technical limit?

引用

AIP Conference Proceedings 2016年第1期1710卷

作者： Evvy Kartini Maykel Manawan 1Center for Science and Technology of Advanced Materials – National Nuclear Energy Agency Kawasan Puspiptek Serpong Tangerang Selatan15314 Banten Indonesia 2Post Graduate Program of Materials Science University of Indonesia Jl.Salemba Raya No.4 Jakarta 10430 Indonesia

With increasing demand for electrical power on a distribution grid lacking storage capabilities, utilities and project developers must stabilize what is currently still intermittent energy production. In fact, over half of utility executives say “the most important emerging energy technology” is energy storage. Advanced, low-cost battery designs are providing promising stationary storage solutions that can ensure reliable, high-quality power for customers, but research challenges and questions lefts. Have lithium-ion batteries (LIBs) reached their technical limit? The industry demands are including high costs, inadequate energy densities, long recharge times, short cycle-life times and safety must be continually addressed. Safety is still the main problem on developing the lithium ion *** safety issue must be considered from several aspects, since it would become serious problems, such as an explosion in a Japan Airlines 787 Dreamliner’s cargo hold, due to the battery problem. The combustion is mainly due to the leakage or shortcut of the electrodes, caused by the liquid electrolyte and polymer separator. For this reason, the research on solid electrolyte for replacing the existing liquid electrolyte is very important. The materials used in existing lithium ion battery, such as a separator and liquid electrolyte must be replaced to new solid electrolytes, solid materials that exhibits high ionic conductivity. Due to these reasons, research on solid state ionics materials have been vastly growing worldwide, with the main aim not only to search new solid electrolyte to replace the liquid one, but also looking for low cost materials and environmentally friendly. A revolutionary paradigm is also required to design new stable anode and cathode materials that provide electrochemical cells with high energy, high power, long lifetime and adequate safety at competitive manufacturing costs. Lithium superionic conductors, which can be used as solid electrolytes, promis

关键词：

来源：评论

学校读者我要写书评

暂无评论

Correlation Equation to Predict HHV of Tropical Peat Based on its Ultimate Analyses

引用

Procedia Engineering 2015年 125卷 298-303页

作者： Wiwiek Setyawati Enri Damanhuri Puji Lestari Kania Dewi Faculty of Civil and Environmental Engineering Bandung Institute of Technology Jl. Ganesha 10 Bandung 40132 Indonesia Centre for Atmospheric Science and Technology LAPAN Jl. Dr Djundjunan 133 Bandung 40173 Indonesia Graduate Program Bandung Institute of Technology Jl. Ganesha 10 Bandung 40132 Indonesia

The aim of the research is to develop correlation equation to predict HHV of tropical peat based on its ultimate analysis. The Eijkelkamp peat sampler was employed to take samples of peat in five different districts in Pontianak, Indonesia. Samples were taken up to 2 m depth with 50 cm increments therefore total 20 samples were obtained. Ultimate analyses and higher heating value (HHV) of peat were evaluated in order to predict HHV based on its ultimate analyses results. It was found that C, H, O, S, N and ash contents in dry bases (in weight %) had ranges of 15.63 – 59.43%, 2.63 – 6.47%, 13.35 – 36.84%, 0.12 – 3.86%, 0.48 – 2.01% and 1.00 – 64.05%, respectively. HHV had ranges of 8.07 – 21.69 MJ/kg. Based on chemical composition of dry peat therefore new equation formulae to predict HHV peat was HHV = 17.830 + 1.508 H + 0.102 N + 0.575 S – 0.192 O-0.205 Ash, with an average absolute error and bias error of 2.18% and 0.17%, respectively.

关键词： Tropical peat Pontianak ultimate analysis high heating value prediction

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：