Articles techniques et présentations

The Electromagnetic Signatures of Explosives Laboratory (EMXLAB) at the U.S. Department of Homeland Security, Science and Technology Directorate's Transportation Security Laboratory (TSL) supports the test and evaluation of millimeter wave imaging systems through the measurement of the ... En savoir plus

We used COMSOL Multiphysics® simulation software to model mass flow calorimetry in a metal-hydride chemisorption reaction. Using a reaction chamber with 100W input, we measured the temperature of flowing water in contact with the chamber and calculated the heat output of our reaction. ... En savoir plus

The present author’s specialty is Aerodynamics, a field in which problems in unbounded fluid domains are common. The COMSOL Multiphysics® simulation software's support of Infinite Elements is attractive as a tool for addressing such problems. Be that as it may, neither the COMSOL ... En savoir plus

Introduction: Keratin protein biomaterials (KTN) are used in various tissue engineering applications including liquid infusions and gel implants. Random movement of molecular species is characterized by Fick’s laws of diffusion (and velocity-dependent convection) with the ... En savoir plus

Bi2Sr2CaCu2O8+δ (Bi 2212) is being developed as a high temperature superconductor (HTS) technology with practical use in ultra-high field (+30 T) magnets. A critical processing step for this conductor is a ~890 degC heat treatment at elevated pressure (~50 atm). The reaction of this ... En savoir plus

MEMS microphones consist of a conductive backplate and a conductive flexible membrane. The backplate and the membrane are at a certain distance from each other to be interpreted as parallel plates of a capacitor. When a bias voltage is applied to the electrodes, membrane deflection ... En savoir plus

Numerical study of fluid flow and heat transfer in a finite three-dimensional rectangular, horizontal duct of length to width, and length to height ratio of 12:1 is investigated in this study. The left wall of the duct is uniformly heated while the right, top, and bottom walls are ... En savoir plus

Introduction: Design of a thermally driven actuator used in Micro Electro Mechanical Systems (MEMS) with two different metal materials is discussed. To achieve best performance of the thermally driven actuator in this work, it is desired to use a metal material with both high coefficient ... En savoir plus

Incompressible flow field past a circular cylinder within parallel plate channel is very important in industry and science. As well known, beyond the Reynolds number based on the diameter of the cylinder and uniform flow velocity of 40, flow past a circular cylinder cannot hold its two ... En savoir plus

Flow past a circular cylinder arises in many engineering applications, but there is significantly less work studying flow past a cylinder in a confined domain, such as pipe flow or flow in a plane channel. There are many applications where the scaling of a particular problem requires ... En savoir plus