Mechanical ventilation systems for controlling conditions in individual zones can move a constant or variable supply of conditioned air to handle all or some of the heating and cooling loads. They are classified as all-air, air-water, and all-water systems. All-air systems include single-duct, dual-duct and multizone. The systems can be designed to operate at Constant Air Volume (CAV) or Variab...

The effect of a sacrificial layer residue on a cantilever beam in the nano-electro-mechanical nonvolatile memory is investigated for the optimization of reliability characteristics. Different from previous research, pull in voltage model of nano-electro-mechanical nonvolatile memory used triangular residue layer which is considered by real wet etching process. Modified pull in voltage model was...

The paper introduces an electro-mechanical transducer finite element (EMT) for the strongly coupled simulation of micro electro-mechanical system (MEMS) devices in the commercial finite element analysis (FEA) package ANSYS.

This paper presents a comprehensive case study on electro-mechanical analysis of MEMS[1] variable capacitors. Using the fundamental mechanical and electrical equations, static and dynamic behaviors of the device are studied. The analysis is done for three different modes, namely: dc (static mode), small signal ac and large signal regime. A complete set of equations defining dynamic behavior of ...

In this study, we first demonstrate that the J-integral in classical linear elasticity becomes path-dependent when the solid is subjected to combined electrical, chemical and mechanical loadings. We then construct an electro-chemo-mechanical J-integral that is path-independent under such combined multiple driving forces. Further, we show that this electro-chemo-mechanical J-integral represents ...

Packaging costs of Micro-Electro-Mechanical System (MEMS) are still contributing with >50% to the total costs of most devices. Aligned wafer bonding techniques for Wafer-level packaging (WLP) demonstrates a huge potential to reduce these costs due to a smaller size of the total package, improved performance and shorter time to market. A special group of MEMS devices, Micro-OptoElectro-Mechanica...

Department of Automation Engineering, National Formosa University Huwei, Yunlin, Taiwan, (Email: [email protected]) *Department of Electrical Engineering, National Winlin University of Science and Technology Douliou, Yunlin, Taiwan **Institute of Electro-Optical and Material Science, National Formosa University Huwei,Yunlin, Taiwan ***Institute of Mechanical Engineering, National Cheng Kung Uni...

The evolution of critical care and mechanical ventilation has been dramatic and rapid over the last 10 years and can be expected to continue at this pace into the future. As a result, the competencies of the respiratory therapist regarding mechanical ventilation in 2015 and beyond are expected to also markedly increase. Respiratory therapists are expected to be the experts on the mechanical ven...