Modelling of the Dynamical Fluorescent Micro-Thermal Imaging Experiment on the Heat Diffusion in the La5Ca9Cu24O41 Spin Ladder Compound - new
E. Khadikova, F. de Haan, P. H. M. van Loosdrecht
Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands
Department of Physics, University of Cologne, Köln, Germany
The dynamical fluorescent micro-thermal imaging (FMI) experiment has been used to investigate the phonon-magnon interaction in the 1D Heisenberg antiferromagnet La5Ca9Cu24O41. This material shows highly anisotropic heat conductivity due to the efficient magnetic heat transport along the spin ladders in the compound carried by magnetic excitations (magnons). To extract information on the phonon ...
A. Cockx, R. Degrave, P. Schmitz
University of Toulouse, Toulouse, France
This study deals with the 3D modeling of a light photocatalytic textile. This process aims to decontaminate industrial effluents such as water with pesticides. The present study describes the implementation of a reactive transport model in a computational fluid dynamics model developed on a Representative Volume Element (RVE) of the textile, i.e. at the microscopic scale. The final ...
S. Skoda, E. Robalinho, E. F. Cunha, M. Linardi
Instituto de Pesquisas Energéticas e Nucleares - IPEN/CNEN-SP, São Paulo, SP, Brazil
Universidade Nove de Julho - UNINOVE, São Paulo, SP, Brazil
The use of numerical techniques in PEM fuel cell sensoring represents an advantage of project engineering, reducing the costs and accelerating the manufacturing of prototypes. In this work some numerical responses are shown, relating to numerical sensoring of water and oxygen mole fractions at cathode of a 5 cm² of geometric area PEM fuel cell. The need to recognize a geometric figure of merit ...
Department of Mathematics, Monmouth University, West Long Branch, NJ, USA
Atherosclerotic lesions preferentially develop in certain regions like bifurcations, branches, and bends [1, 2]. A possible explanation for such a preferential localization of atherosclerosis is that the geometry of the vessel influences the blood flow pattern. It suggests that the arterial geometry plays an important role in determining the localized blood flow information. Thus hemodynamic ...
Ankit , T. K. Kundu , R. P. Kumar ,
 Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
HSBC India(Formerly with IIT Kharagpur) , Bangalore , India
The rotary kiln process is a commonly practiced method in the industry for producing sponge iron using coal. In the industry, there have been recent reports of premature failures of certain air tubes in a rotary kiln. Most of those cases have concentrated on those air tubes which run into the kiln around the middle portion of the kiln. This research work aims at identifying the probable cause of ...
H. Weng , Y. Yang , B. Liu , X. Ma 
 Institute of Semiconductors, Chinese Academy of Science, Beijing, China
In the past decades, equilateral polygonal microcavity lasers with whispering-gallery modes (WGMs) have attracted great attentions due to their potential application in photonic-integrated circuits. Compared to the perfect microdisk without deformation, the polygonal microcavities such as triangle, square, hexagonal and octagonal can easily realize the light directional emission and single mode ...
N. Chamuah , P. Nath ,
 Tezpur University, Sonitpur, Assam, India
Present work demonstrates a detail simulation results on enhanced generation of localized surface plasmon resonance (LSPR) field condition in a periodically varying height metal nano-pillars. Periodically varying height metal nanopillar provides enhanced LSPR field conditions than uniformly structured metal nanopillar. However the refractive index sensing for periodically varying height metal ...
H. J. Hall , L. A. Starman ,
 Sensors Directorate, Air Force Research Laboratory, Wright-Patterson AFB, OH, USA
Beam steering and adaptive optics micromirror applications commonly demand optically flat surfaces with minimal mass. When reflective coatings (usually metallic Au or Al) are applied to micromirror surfaces in order to meet optical reflectivity requirements the resulting film stress (usually tensile) can be substantial. The mass of the mirror can be a limiting factor in the dynamic performance. ...
J. Persad , S. Rocke , D. Ringis , A. Abdool ,
 Department of Electrical and Computer Engineering, University of the West Indies, St. Augustine, Trinidad and Tobago
3D printing as applied to the area of electronics manufacture covers a broad range of traditional printing technologies . The attraction in 3D printing lies in its potential to disrupt the traditional photolithographic/subtractive manufacturing line with simpler additive processes. Additive electronics manufacturing which utilises 3D printing techniques allow for fewer production steps and ...
王 松 , , 唐小金 
 军械工程学院静电与电磁防护研究所, 石家庄，河北，中国
 北京卫星环境工程研究所, 北京，中国
摘要：在太空高能带电粒子作用下，航天器上存在绝缘介质深层充电的危险。介质内沉积电荷导致局部出现强电场（达到107V/m），有可能造成介质击穿放电。一方面，充电过程与介质电导率密切相关，而电导率受温度影响显著，另一方面，介质中的通电导体发热会影响介质的局部温度，于是有必要综合考虑介质中电场与热场的耦合变化过程。对此，我们建立了考虑电场与热场耦合变化的介质深层充电模型，并采用 COMSOL Multiphysics® 软件，实现了数值求解。结果表明，在一定的空间辐射环境下，考虑热场是十分重要的，热导率会对充电结果产生不可忽视的影响。该模型有利于多因素作用下的航天器介质深层充电评估计算。 1. 引言： 近些年，卫星充放电效应得到了广泛关注和研究[1, 2]。太空高能电子会射入航天器绝缘介质中，因为该介质极低电导率（10-15S/m量级），使得内部沉积电荷难以泄放 ...