In order to achieve the high-precision and high-efficiency machining of micro-channels for hard brittle materials, authors innovatively proposed a new technology called template-based electrophoretically assisted micro-ultrasonic (TBEPAMUSM). This transfers micro-channel shape punch-pin workpiece material through form micro-channel. At same time, it uses electrophoretic properties ultra-fine ab...

Mapping of tidal channels is significant and fundamental in intertidal hydrodynamic studies. This paper is an attempt to develop a new approach for tidal channel identification from remotely sensed data, by accounting for the spectral and shape properties of channels. The method begins with segmentation of the image ensuring similarity of neighbouring pixels in each segment. A few training pixe...

One of the simplest geometries for micro-mixers has a T-shape, i.e., two inlets join perpendicularly mixing channel. The cross-sections channels are usually square/rectangular, as straight walls facilitate experimental and modeling analysis. On contrary, this work investigates through Computational Fluid Dynamics effect cross-section with lateral inclined an angle α such inclination may stem fr...

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...

−This paper reports the design, modeling, fabrication and measurement of passive microvalves, which are applicable to glaucoma implants. The proposed microvalves were designed using fluidic theory. The microvalves consisted of microchannels and chambers. The microchannels had a constant fluidic resistance generating a pressure difference. Six kinds of microvalves were designed using fluidic equ...

A tissue-engineering scaffold resembling the structure of the natural extracellular matrix can often facilitate tissue regeneration. Nerve and tendon are oriented micro-scale tissue bundles. In this study, a method combining injection molding and thermally induced phase separation techniques is developed to create single- and multiple-channeled nanofibrous poly(L-lactic acid) scaffolds. The ove...

In this paper, a novel analysis was carried out on the biosensor microcantilevers in order to increase the sensitivity of a microcantilever based biosensor piezoresistive. Holes were made and compared with the basic rectangular (R), triangular (T), and step(S) profile cantilever. Effect of changing the micro-cantilevers profile and its cross-section shape was investigated. A finite element ANSY...

Experimental studies of blood microflows in rectangular biocompatible polymer microchannels measured using micro-particle image velocimetry are reported. The data processing methods, data collection methods, and choice of channel material are demonstrated to impact the velocity profile measurements obtained. Results show that the use of red blood cells as tracer particles creates a large depth ...

  Micro scale gas flows has attracted significant research interest in the last two decades. In this research, the fluid flow of gases in the stepped micro-channel at a wide range of Knudsen number has been analyzed with using the Lattice Boltzmann (MRT) method. In the model, a modified second-order slip boundary condition and a Bosanquet-type effective viscosity are used to consider the veloci...