In this paper, a comprehensive study on the performance of parallel plate and rectangular micro channel counter flow heat exchangers is presented. The geometrical parameters of the two configurations are optimized for a given heat transfer rate, effectiveness and pressure drop. In case of rectangular micro channel counter flow heat exchanger, a reduced order model is developed first in which re...

In this paper, nonlinear control techniques are developed to control parallel-plate micro electrostatic actuators in the presence of parasitics and parametric uncertainties. The movable plate of the micro actuator is actively controlled utilizing the measurements of internal charge and movable plate’s displacement. A velocity observer is designed to estimate the velocity of the plate that is ne...

Automatic plate recognition of vehicles is of great importance in route management systems. Especially that such systems require real-time algorithms to perform the plate recognition task as soon as possible. In this paper, a new plate recognition system based on a fuzzy noise removal technique and the opposition-based micro-differential evolution (OMDE) algorithms is presented. Since populatio...

A new microtransfer technique is described which uses a modified, V-bottom, disposable, 96-cup plastic plate that permits serial dilutions and direct rapid transfer to a recipient micro cell culture plate.

kocho and bula are fermented product of enset (ensete ventricosum). it is the staple food for 20 million people in ethiopia. the aim of study was to isolate, identify and characterize yeast species from fermented kocho and bulla by using biolog micro station. 300 kocho samples were collected from angacha district. 0.1ml of serially diluted samples were streaked on yeast pepton dextrose agar and...

Currently, temporary anchorage devices (TADs) are being used in orthodontic treatments for skeletal anchorages. However, patients remain apprehensive regarding the use of this novel concept in orthodontic procedures. The purpose of this study was to compare the differences and the change in pain perception after treatment using TADs (micro-implant, mini-implant and mini-plate). Fifty-seven TADs...

Introduction: Micro-perforated absorbents are one of the structures that are widely used nowadays. The sound absorption mechanism is performed by viscous energy losses in the cavities on the plate. In this study, the acoustic properties of non-flat perforated panels in oblique angle was investigated in numerical method. Material and Methods: This paper examined the effect of the surface shape ...

The modelling, simulation, fabrication and testing of a microchannel cooling plate are described in this article. The cooling component is to be used in microelectronic packaging applications. The nickelbased micro-channel cooling plate is fabricated on a glass substrate using a two-layer electroforming process borrowed from UV-LIGA. Forced convection of air or liquid is scheduled for this micr...