Pub Date : 2017-02-01DOI: 10.1007/978-3-662-53474-8_10
A. Volokitin, B. Persson
{"title":"Casimir Forces and Near-Field Radiative Heat Transfer in Graphene Structures","authors":"A. Volokitin, B. Persson","doi":"10.1007/978-3-662-53474-8_10","DOIUrl":"https://doi.org/10.1007/978-3-662-53474-8_10","url":null,"abstract":"","PeriodicalId":54395,"journal":{"name":"Zeitschrift Fur Naturforschung Section A-A Journal of Physical Sciences","volume":"1 1","pages":"211-226"},"PeriodicalIF":1.8,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89493958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Electron Impact Phenomena and the Properties of Gaseous Ions (M. Pahl)","authors":"F. H. Field, J. L. Franklin","doi":"10.1063/1.3060898","DOIUrl":"https://doi.org/10.1063/1.3060898","url":null,"abstract":"","PeriodicalId":54395,"journal":{"name":"Zeitschrift Fur Naturforschung Section A-A Journal of Physical Sciences","volume":"66 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2013-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82995540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The lubrication performances of short journal bearings operating with non-Newtonian ferrofluids have been investigated in the present study. Based upon the ferrofluid model of Shliomis and the micro-continuum theory of Stokes, a two-dimensional modified Reynolds equation is derived by taking into account the effects of rotation of ferromagnetic particles and the effects of non-Newtonian properties. As an application, the short-bearing approximation is illustrated. Comparing with the conventional non-ferrofluid case, the short journal bearings with ferrofluids in the presence of magnetic fields result in a higher load capacity. Comparing with the Newtonian ferrofluid case, the non-Newtonian effects of couple stresses provide an enhancement in the load capacity, as well as a reduction in the friction parameter. The inclusion of non-Newtonian couple stresses signifies an improvement in performance characteristics of ferrofluid journal bearings.
{"title":"Lubrication Performances of Short Journal Bearings Operating with Non-Newtonian Ferrofluids","authors":"J. Lin, Po-Jui Li, T. Hung","doi":"10.5560/ZNA.2012-0114","DOIUrl":"https://doi.org/10.5560/ZNA.2012-0114","url":null,"abstract":"The lubrication performances of short journal bearings operating with non-Newtonian ferrofluids have been investigated in the present study. Based upon the ferrofluid model of Shliomis and the micro-continuum theory of Stokes, a two-dimensional modified Reynolds equation is derived by taking into account the effects of rotation of ferromagnetic particles and the effects of non-Newtonian properties. As an application, the short-bearing approximation is illustrated. Comparing with the conventional non-ferrofluid case, the short journal bearings with ferrofluids in the presence of magnetic fields result in a higher load capacity. Comparing with the Newtonian ferrofluid case, the non-Newtonian effects of couple stresses provide an enhancement in the load capacity, as well as a reduction in the friction parameter. The inclusion of non-Newtonian couple stresses signifies an improvement in performance characteristics of ferrofluid journal bearings.","PeriodicalId":54395,"journal":{"name":"Zeitschrift Fur Naturforschung Section A-A Journal of Physical Sciences","volume":"9 1","pages":"249-254"},"PeriodicalIF":1.8,"publicationDate":"2013-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89291714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This work presents a new approach for three-dimensional (3D) coastal deformation simulation using differential synthetic aperture interferometry (DInSAR). In doing so, conventional InSAR procedures are implemented to three repeat passes of RADARSAT-1 SAR fine mode data (F1). Further, the DInSAR method is implemented with the phase unwrapping technique. Consequently, DInSAR is used to eliminate the phase decorrelation impact from the interferograms. The study shows the accurate performance of DInSAR with a root mean square error of 0:02±0:21 m and 90% confidence intervals. In conclusion, the DInSAR technique produces an accurate 3D coastal geomorphology reconstruction.
{"title":"Three-dimensional coastal geomorphology deformation modelling using differential synthetic aperture interferometry","authors":"Maged Mahmoud Margany","doi":"10.5560/ZNA.2012-0031","DOIUrl":"https://doi.org/10.5560/ZNA.2012-0031","url":null,"abstract":"This work presents a new approach for three-dimensional (3D) coastal deformation simulation using differential synthetic aperture interferometry (DInSAR). In doing so, conventional InSAR procedures are implemented to three repeat passes of RADARSAT-1 SAR fine mode data (F1). Further, the DInSAR method is implemented with the phase unwrapping technique. Consequently, DInSAR is used to eliminate the phase decorrelation impact from the interferograms. The study shows the accurate performance of DInSAR with a root mean square error of 0:02±0:21 m and 90% confidence intervals. In conclusion, the DInSAR technique produces an accurate 3D coastal geomorphology reconstruction.","PeriodicalId":54395,"journal":{"name":"Zeitschrift Fur Naturforschung Section A-A Journal of Physical Sciences","volume":"121 1","pages":"419-420"},"PeriodicalIF":1.8,"publicationDate":"2012-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76619321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ordinary Non-Linear Differential Equations in Engineering and Physical Sciences (E. Ullrich)","authors":"T. Broadbent, N. Mclachlan","doi":"10.2307/3609229","DOIUrl":"https://doi.org/10.2307/3609229","url":null,"abstract":"","PeriodicalId":54395,"journal":{"name":"Zeitschrift Fur Naturforschung Section A-A Journal of Physical Sciences","volume":"35 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2007-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88771047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The molar enthalpies of mixing, < m i x H m in the binary liquid systems TbBr 3 -MBr (M = Li, Na, K, Rb, Cs) have been measured with a Calvet-type high-temperature microcalorimeter over the entire composition range with anaccuracy of about 6%. Mixing of the two liquid components was achieved by using the "break-off ampoule" technique. All the investigated systems show negative enthalpies of mixing with a minimum value of approximately -1.25, -8.3, -17.0, -20.0 and -22.5 kJ mol - 1 , for M = Li, Na, K, Rb and Cs, respectively. The mixing enthalpy in the TbBr 3 -LiBr system is positive in the TbBr 3 -rich region. For all the systems, the enthalpy minimum occurs at mole fraction x TbBr 3 0.3 - 0.4. The molar enthalpies of formation < f o r m H m (3MBr, TbBr 3 , 1) for M = Li, Na, K, Rb and Cs at 1113 K (arising from the reaction 3MBr ( 1 ) +TbBr 3 ( 1 ) = (3MBr, TbBr 3 ) ( 1 ) ) are found to be-4.8, -31.3, -63.3, -70.3 and -81.2 kJmol - 1 , respectively. The least-squares coefficients A, B, C, D and E in the equation A (kJ mol - 1 )=A+Bx+Cx 2 +Dx 3 +Ex 4 , where λ is an interaction parameter and x = x T b B r 3 , are also reported.
用calvet型高温微量热计测量了TbBr 3 -MBr (m = Li, Na, K, Rb, Cs)二元液体体系的摩尔混合焓< mix H m，在整个组成范围内的精度约为6%。两种液体组分的混合是通过使用“分离安瓿”技术实现的。M = Li, Na, K, Rb和Cs的混合焓均为负，最小值分别为-1.25，-8.3，-17.0，-20.0和-22.5 kJ mol -1。富tbbr3区tbbr3 -LiBr体系的混合焓为正。对于所有的体系，焓最小值出现在摩尔分数x TbBr 3 0.3 ~ 0.4处。在1113 K下(由3MBr (1) +TbBr 3 (1) = (3MBr, TbBr 3)(1)的反应)，m = Li, Na, K, Rb和Cs的摩尔生成焓< rm H m (3MBr, TbBr 3,1))分别为4.8，-31.3，-63.3，-70.3和-81.2 kJmol - 1。本文还报道了方程A (kJ mol - 1)=A+Bx+ cx2 +Dx 3 +Ex 4中的最小二乘系数A, B, C, D和E，其中λ为相互作用参数，x = x T B B r 3。
{"title":"Mixing enthalpies of TbBr3-MBr liquid mixtures (M = Li, Na, K, Rb, Cs)","authors":"L. Rycerz, M. Gaune-Escard","doi":"10.1149/200219.0603PV","DOIUrl":"https://doi.org/10.1149/200219.0603PV","url":null,"abstract":"The molar enthalpies of mixing, < m i x H m in the binary liquid systems TbBr 3 -MBr (M = Li, Na, K, Rb, Cs) have been measured with a Calvet-type high-temperature microcalorimeter over the entire composition range with anaccuracy of about 6%. Mixing of the two liquid components was achieved by using the \"break-off ampoule\" technique. All the investigated systems show negative enthalpies of mixing with a minimum value of approximately -1.25, -8.3, -17.0, -20.0 and -22.5 kJ mol - 1 , for M = Li, Na, K, Rb and Cs, respectively. The mixing enthalpy in the TbBr 3 -LiBr system is positive in the TbBr 3 -rich region. For all the systems, the enthalpy minimum occurs at mole fraction x TbBr 3 0.3 - 0.4. The molar enthalpies of formation < f o r m H m (3MBr, TbBr 3 , 1) for M = Li, Na, K, Rb and Cs at 1113 K (arising from the reaction 3MBr ( 1 ) +TbBr 3 ( 1 ) = (3MBr, TbBr 3 ) ( 1 ) ) are found to be-4.8, -31.3, -63.3, -70.3 and -81.2 kJmol - 1 , respectively. The least-squares coefficients A, B, C, D and E in the equation A (kJ mol - 1 )=A+Bx+Cx 2 +Dx 3 +Ex 4 , where λ is an interaction parameter and x = x T b B r 3 , are also reported.","PeriodicalId":54395,"journal":{"name":"Zeitschrift Fur Naturforschung Section A-A Journal of Physical Sciences","volume":"39 1","pages":"859-864"},"PeriodicalIF":1.8,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73255044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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