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Connection between heat diffusion and heat conduction in one-dimensional systems 一维系统中热扩散与热传导的关系
Science China Physics, Mechanics and Astronomy Pub Date : 2013-06-25 DOI: 10.0000/s00000-000-0000-0
Shunda Chen, Yong Zhang, Jiao Wang, Hong Zhao
{"title":"Connection between heat diffusion and heat conduction in one-dimensional systems","authors":"Shunda Chen, Yong Zhang, Jiao Wang, Hong Zhao","doi":"10.0000/s00000-000-0000-0","DOIUrl":"https://doi.org/10.0000/s00000-000-0000-0","url":null,"abstract":"Heat and energy are conceptually different, but often are assumed to be the same without justification. An effective method for investigating diffusion properties in equilibrium systems is discussed. With this method, we demonstrate that for one-dimensional systems, using the indices of particles as the space variable, which has been accepted as a convention, may lead to misleading conclusions. We then show that though in one-dimensional systems there is no general connection between energy diffusion and heat conduction, however, a general connection between heat diffusion and heat conduction may exist. Relaxation behavior of local energy current fluctuations and that of local heat current fluctuations are also studied. We find that they are significantly different, though the global energy current equals the globe heat current.","PeriodicalId":236111,"journal":{"name":"Science China Physics, Mechanics and Astronomy","volume":"231 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123433455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Precise simulation of surface acoustic wave devices using frequency-dependent coupling-of-modes parameters 使用频率相关模式耦合参数的表面声波器件的精确模拟
Science China Physics, Mechanics and Astronomy Pub Date : 2012-04-01 DOI: 10.1121/1.4709223
Hao Wang, Weibiao Wang, Haodong Wu, Bo Su, Y. Shui
{"title":"Precise simulation of surface acoustic wave devices using frequency-dependent coupling-of-modes parameters","authors":"Hao Wang, Weibiao Wang, Haodong Wu, Bo Su, Y. Shui","doi":"10.1121/1.4709223","DOIUrl":"https://doi.org/10.1121/1.4709223","url":null,"abstract":"Herein we extract all the frequency-dependent coupling-of-modes (COM) parameters, which will be used to the rapid simulation and optimal design of surface acoustic wave (SAW) devices. FEM/BEM is used to calculate the exact field distributions of forward and backward surface acoustic waves within a finite-length periodic grating at every frequency. The middle component of the grating, regarded as a periodic structure, is selected to be investigated which can satisfy the presupposition of the COM model. From these field distributions, the values of P-matrix elements of one cell are calculated. The COM parameters taken as functions of frequency are accurately obtained. Specifically, the frequency-dependent relationships of reflection coefficient and propagation velocity are obtained independently. Using the resultant COM parameters, a one-port resonator on the substrate of 128°YX-LiNbO3 is simulated and the admittance curve shows good agreement with the simulating results using FEM/BEM. These results verify the validity and accuracy of this method.","PeriodicalId":236111,"journal":{"name":"Science China Physics, Mechanics and Astronomy","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131880453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Constraint on the counter-jet emission in gamma-ray burst afterglows from GRB 980703 GRB 980703伽马暴余辉中反喷流发射的约束
Science China Physics, Mechanics and Astronomy Pub Date : 2010-05-20 DOI: 10.1007/S11433-010-0020-6
Xin Wang, Yong-Feng Huang, S. Kong
{"title":"Constraint on the counter-jet emission in gamma-ray burst afterglows from GRB 980703","authors":"Xin Wang, Yong-Feng Huang, S. Kong","doi":"10.1007/S11433-010-0020-6","DOIUrl":"https://doi.org/10.1007/S11433-010-0020-6","url":null,"abstract":"","PeriodicalId":236111,"journal":{"name":"Science China Physics, Mechanics and Astronomy","volume":"256 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115008496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
A study of a sequence of blazars from FSRQs to BL Lac objects 从FSRQs到BL Lac天体的耀变体序列研究
Science China Physics, Mechanics and Astronomy Pub Date : 2010-05-20 DOI: 10.1007/S11433-010-0018-0
Hongtao Liu, Liang Chen
{"title":"A study of a sequence of blazars from FSRQs to BL Lac objects","authors":"Hongtao Liu, Liang Chen","doi":"10.1007/S11433-010-0018-0","DOIUrl":"https://doi.org/10.1007/S11433-010-0018-0","url":null,"abstract":"","PeriodicalId":236111,"journal":{"name":"Science China Physics, Mechanics and Astronomy","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127538282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Progress of research on AGNs at the Urumqi Observatory 乌鲁木齐天文台agn研究进展
Science China Physics, Mechanics and Astronomy Pub Date : 2010-05-20 DOI: 10.1007/S11433-010-0063-8
L. Cui, Huagang Song, Jun Liu, Xiang Liu, T. Krichbaum, L. Fuhrmann, N. Marchili
{"title":"Progress of research on AGNs at the Urumqi Observatory","authors":"L. Cui, Huagang Song, Jun Liu, Xiang Liu, T. Krichbaum, L. Fuhrmann, N. Marchili","doi":"10.1007/S11433-010-0063-8","DOIUrl":"https://doi.org/10.1007/S11433-010-0063-8","url":null,"abstract":"","PeriodicalId":236111,"journal":{"name":"Science China Physics, Mechanics and Astronomy","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133321509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magnetic energy injection in GRB 080913 GRB 080913中的磁能注入
Science China Physics, Mechanics and Astronomy Pub Date : 2010-05-20 DOI: 10.1007/S11433-010-0049-6
Xueting Liu, Xuefeng Wu, T. Lu
{"title":"Magnetic energy injection in GRB 080913","authors":"Xueting Liu, Xuefeng Wu, T. Lu","doi":"10.1007/S11433-010-0049-6","DOIUrl":"https://doi.org/10.1007/S11433-010-0049-6","url":null,"abstract":"","PeriodicalId":236111,"journal":{"name":"Science China Physics, Mechanics and Astronomy","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134100419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
The relationship of extended radio power and broad emission line luminosity in blazars 耀变体中扩展射电功率与宽发射线光度的关系
Science China Physics, Mechanics and Astronomy Pub Date : 2010-05-20 DOI: 10.1007/S11433-010-0054-9
Hongtao Liu, J. Bai
{"title":"The relationship of extended radio power and broad emission line luminosity in blazars","authors":"Hongtao Liu, J. Bai","doi":"10.1007/S11433-010-0054-9","DOIUrl":"https://doi.org/10.1007/S11433-010-0054-9","url":null,"abstract":"","PeriodicalId":236111,"journal":{"name":"Science China Physics, Mechanics and Astronomy","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128208815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Decomposition of the X-ray waveform of soft gamma-ray repeaters during giant flares 巨型耀斑期间软伽玛射线中继器x射线波形的分解
Science China Physics, Mechanics and Astronomy Pub Date : 2010-05-20 DOI: 10.1007/S11433-010-0044-Y
Y. Xing, Wenfei Yu
{"title":"Decomposition of the X-ray waveform of soft gamma-ray repeaters during giant flares","authors":"Y. Xing, Wenfei Yu","doi":"10.1007/S11433-010-0044-Y","DOIUrl":"https://doi.org/10.1007/S11433-010-0044-Y","url":null,"abstract":"","PeriodicalId":236111,"journal":{"name":"Science China Physics, Mechanics and Astronomy","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130110999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A mathematical method for the de-dispersion of the pulsar profile 脉冲星轮廓去色散的数学方法
Science China Physics, Mechanics and Astronomy Pub Date : 2010-05-20 DOI: 10.1007/S11433-010-0062-9
J. Yuan, Na Wang, Xin-ji Wu, A. Esamdin
{"title":"A mathematical method for the de-dispersion of the pulsar profile","authors":"J. Yuan, Na Wang, Xin-ji Wu, A. Esamdin","doi":"10.1007/S11433-010-0062-9","DOIUrl":"https://doi.org/10.1007/S11433-010-0062-9","url":null,"abstract":"","PeriodicalId":236111,"journal":{"name":"Science China Physics, Mechanics and Astronomy","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126770430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Morphology and the MBH-σ* relation for NLS1s nls1的形貌及MBH-σ*关系
Science China Physics, Mechanics and Astronomy Pub Date : 2010-05-20 DOI: 10.1007/S11433-010-0051-Z
W. Bian, Li Huang
{"title":"Morphology and the MBH-σ* relation for NLS1s","authors":"W. Bian, Li Huang","doi":"10.1007/S11433-010-0051-Z","DOIUrl":"https://doi.org/10.1007/S11433-010-0051-Z","url":null,"abstract":"","PeriodicalId":236111,"journal":{"name":"Science China Physics, Mechanics and Astronomy","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129316723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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