M. A. Saucedo-Espinosa , M. Rauch , B. H. Lapizco-Encinas ,
 Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, NY, USA
 Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY, USA
Insulator-based dielectrophoresis (iDEP) employs arrays of electrically insulator posts in a microfluidic device to create dielectrophoretic forces that affect particle movement (Figure 1). The trapping performance of iDEP devices involves a careful balance between electrokinetics (EK) and dielectrophoresis (DEP), where EK is the superposition of electroosmosis (EO) and electrophoresis (EP). The ...
F. Mbailassem , Q. Leclere ,
 LVA - INSA de Lyon, France
This paper introduces an efficient model to describe energy dissipation in acoustic. When the propagation domain has hard wall boundary conditions only viscous and thermal losses happen and are completely described by the so-called Full Linearized Navier-Stokes model (FLNS) which is implemented in thermoacoutics interface using the COMSOL Acoustics Module. This model defined by a set of ...
E. Ruiz-Reina , F. Carrique , A.V. Delgado , M.M. Fernández ,
 Department of Applied Physics II, University of Málaga, Málaga, Spain
 Department of Applied Physics I, University of Málaga, Málaga, Spain
 Department of Applied Physics, University of Granada, Granada, Spain
Capacitive energy extraction based on double layer expansion (CDLE) is a new method devised for extracting energy from the exchange of fresh and salty water in porous electrodes. First suggested by D. Brogioli, it is enclosed in a group of emergent technologies jointly known as Capmix methods. The CDLE technique is based on the fact that the capacitance of the electric double layer (EDL) ...
A. Koushki ,
 Rostock University, Rostock, Germany
Solder connections are one of the most essential parts of the PCBs. Despite many well-known scientific works that have been done about overlap solder interconnection properties, such as fracture, fatigue and reliability studies, little attention have been given to the investigation of the connection between effects of electrical properties and laboratory soldering shortages such as effects of ...
李振 , 毛冬麟 , 李晨 , 路鹏 ,
引言：电容成像检测技术是一种新型的无损检测技术，它是利用一对共面电极板之间产生的准静态边缘电场对缺陷进行检测，电容成像探头的形状是成像性能的关键因素，据此设计了点对点三角形探头(A型)、边对边三角形探头(B型)、正方形探头(C型)和圆形探头(D型)，如图1所示，并利用 COMSOL Multiphysics® 对它们的性能进行分析。 计算方法：通过 COMSOL Multiphysics 软件的 AC/DC 模块对电容成像探头的电容值、电势分布和灵敏度进行研究。仿真中用到了“静电（es）”接口。 结果：仿真得到了四种电容成像探头的电容值（图2）、电势分布图（图3）和灵敏度分布图（图4）。 结论：电容成像探头的探测深度与灵敏度之间相互制约。在这四种电容成像探头中，点对点三角形探头的电容值是最大的，电势分布是趋于集中的，边对边三角形探头的灵敏度是最高的 ...
K. Durga Prasad , S.V.S. Murty , V. K. Rai ,
 Planetary Sciences Division, Physical Research Laboratory, Ahmedabad, Gujarat, India
A comprehensive three dimensional finite element thermal model has been developed using COMSOL Multiphysics® software to understand the thermo-physical behaviour of the uppermost regolith layer of the moon. The model can simulate variable layers, layer thickness and dimensions and can account for complex geometry, different size, irregular meshing, parametric based variation in physics and ...
王威 , 周超 ,
微纳米马达是一种能将周围环境的能量转化为自身自主运动的新型智能仿生材料，其在药物的运输与释放，低维材料的合成以及软物质研究中有着重要的应用。基于自电泳的双金属棒马达是研究时间最长的一类马达，它有着与自然界中类似的自组装和群体行为的特性。但是其运动机理复杂且涉及到多个物理场的紧密耦合，这就为其进一步的研究和应用带来了一定的困难。 COMSOL Multiphysics® 可以方便地进行多物理场的模拟。图(1)展示了双金属棒的自电泳机理， 由于棒两端的化学反应造成了带电离子浓度的分布不均匀，进而产生自生电场驱动马达运动。其中传质过程、流体流动以及电场形成相互影响，环环相扣。基于以上物理过程，我们对 COMSOL 中稀物质传递，静电和蠕动流接口进行了有效的耦合，从而实现了马达周围离子场，电场和流场的模拟(图2)，在此基础之上，我们研究了马达的运动速度(图3) ...
S. K. Nayaka,, S. Roya ,, K. Ghosha ,, S. Aroshb ,, S. Prakashb,, S. P. Duttaguptaa 
 Center for Research in Nanotechnology and Science, IIT Bombay, Mumbai, Maharashtra, India.
 Dept. of Electrical Engineering, IIT Bombay, Mumbai, Maharashtra, India.
Methane detection and quantification is of great importance due to its natural abundance, potential to cause explosions and known greenhouse effect. Leak detection and concentration monitoring at source is highly challenging as CH4 is odorless and colorless. This can be performed mounting sensor network over a potential diffusion area. It requires optimal positioning of those sensor nodes to ...
Simulation of a Diesel Oxidation Catalyst Used in a NOx Storage and Reduction system for Heavy Duty Trucks
C. Odenbrand, and E. Senar Serra
Department of Chemical Engineering, Lund University, Lund, Sweden
This work concerns the performance of an oxidation catalyst used in a NOx storage and reduction system. The oxidation of NO is the main objective of this study, where the presence of CO and propene has also been taken into account. Experimental data has been determined on a monolithic oxidation catalyst mounted after a heavy duty diesel engine in a rig. The conversion of hydrocarbons is ...
K. Zhou, S. Alpay, and S. Boggs
Institute of Material Science, University of Connecticut, Storrs, CT, USA
Finite Element analysis is used to model 2-D and 3-D paraelectric-dielectric composites (BaTiO3 spherical fillers randomly distributed in constant dielectric matrix). The effective dielectric response and tunability are studied under different filler sizes and different volume fractions. The results are consistent with previous theoretical and experimental results: with the increasing of filler ...