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Article
Improvement of high-speed stability of an aerostatic bearing-rotor system using an active magnetic bearing
This paper presents an improvement of the high-speed stability of an aerostatic bearing (ASB) rotor system with an active magnetic bearing (AMB). The AMB can effectively extend the operating range of the ASB-r...
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Article
Optimal microchannel design using genetic algorithms
This paper presents a novel method of optimizing particle-suspended microfluidic channels using genetic algorithms (GAs). The GAs can be used to generate an optimal microchannel design by varying its geometric...
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Article
A pressure output feedback control of turbo compressor surge with a thrust magnetic bearing actuator
This paper presents a pressure output feedback control of turbo compressor surge using tip clearance actuation with a thrust magnetic bearing actuator. First, static and dynamic compressor models were obtained...
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Article
A self-sensing technology of active magnetic bearings using a phase modulation algorithm based on a high frequency voltage injection method
Conventional AMB(active magnetic bearings) systems consist of electromagnetic coils, position sensors, power amplifiers and a feedback controller. This hardware configuration can lead to a structural complexit...
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Article
Design and fabrication of a scanning electron microscope using a finite element analysis for electron optical system
In this paper, we describe the design and fabrication of a thermionic scanning electron microscope (SEM) and examine its characteristics analytically. In the design process, the dimensions and capacity of the ...
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Article
A directly stackable microsystem onto the cultured cells for cytotoxicity tests
Today’s pharmaceutical industry is facing several challenges resulting from a vastly increasing number of samples through a high-throughput screening. In addition, the increased demand for cytotoxicity tests h...
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Article
Design parameter study of a permanent magnet biased magnetic actuator for improving stiffness and linearity
This paper presents a study on the design parameters of a permanent magnet (PM) biased magnetic actuator (MA) for improving stiffness and linearity of the system by using a dimensional analysis. To reduce the ...
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Article
Abstracts from the 6th International Conference on the Engineering of Sport, 10–14 July 2006, Olympic Hall, Munich, Germany
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Article
Microfabricated fluorescence-activated cell sorter through hydrodynamic flow manipulation
In this paper, we present a novel flow manipulation and signal detection scheme for a microfabricated fluorescence-activated cell sorter (μFACS). Optics setup was built on an inverted fluorescence microscope (...
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Chapter and Conference Paper
Optimal Adjustment of Composite-Material Club Shaft Characteristics
In this study, we present a methodology for optimization of golf club shaft design. Shaft characteristics are considered for different player’s preference, such as flexural and torsional stiffness, kick-point ...
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Chapter
Techniques in the Development of Endovascular Microtools & Their Applications
Endovascular is an English word meaning “within the vessel” from Latin endo (within) and vascularis (vessel) and is synonymous with intravascular. Cardiovascular refers to the interaction between the heart and...
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Article
System modeling and robust control of an AMB spindle: part I modeling and validation for robust control
This paper discusses details of modeling and robust control of an AMB (active magnetic bearing) spindle, and part I presents a modeling and validation process of the AMB spindle. There are many components in A...
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Article
System modeling and robust control of an AMB spindle : part II a robust controller design and its implementation
This paper discusses an entire procedure for a robust controller design and its implementation of an AMB (active magnetic bearing) spindle, which is part II of the papers presenting details of system modeling ...
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Article
Development of MEMS-based Cerebrospinal Fluid Shunt System
We have developed a micro cerebrospinal fluid (CSF) shunt system with a MEMS-based micro CSF shunt valve. This valve consists of flow nozzles with membrane connected to anchor by bridges. The up-down movement ...
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Article
Functional integration of serial dilution and capillary electrophoresis on a PDMS microchip
For the quantitative analysis of an unknown sample a calibration curve should be obtained, as analytical instruments give relative, rather than absolute measurements. Therefore, researchers should make standar...
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Article
Model validation and controller design for vibration suppression of flexible rotor using AMB
This paper discusses the model validation and vibration suppression of an AMB flexible rotor via additional LQG controller. The main difficulty in the vibration suppression of the flexible rotor using AMB is t...
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Chapter and Conference Paper
Fabrications and Applications of Micro Hemocytometer for Early Detection of Cancer
There are a lot of clinical studies about the relations between the erythrocyte deformability and the local blood flow mediated diseases like cancer. [1,2] Normally they have used the hemorheological technique...
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Article
Calculation of mixed lubrication at piston ring and cylinder liner interface
This paper reports on the theoretical analysis of mixed lubrication for the piston ring. The analytical model is presented by using the average flow and asperity contact model. The cyclic variations of the nom...
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Chapter and Conference Paper
Development of Serial Dilution Chip for Cellular Based Analysis
Dilution of microfluids is very complex because of the flexibility of microfluids concerned with the channel size, surface characteristics and Reynolds number. With the simulation results of dilution in microc...
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Article
Analysis of ring pack lubrication
This paper describes a method developed for the simulation of ring pack lubrication characteristic in an internal combustion engine. In general, the quantity of oil supply for piston ring lubrication may be in...
