KR – Page 57 – TechConnect Briefs

cDNA Microarray Data Based Classification of Cancers Using Neural Networks and Genetic Algorithms

Cho H.S., Kim T.S., Wee J.W., Jeon S.M., Lee C.H., Catholic Univ. of Korea, KR

In this paper, we developed intelligent gene selection and cancer classification method using genetic algorithms and neural networks. To select valid genes from gene expression data set, genetic algorithms were applied and neural networks were [...]

Texture and Grain Growth in Nanocrystalline Permalloy

Park J., Park Y.B., Park J., Park Y.B., Ha C.S., Yim T.H., Sunchon National University, KR

The texture evolution accompanied by grain growth was investigated in a nanocrystalline Fe-78wt%Ni alloy, namely permalloy fabricated by using an electrodeposition method. The as-deposited specimen revealed a strong //ND and a weak //ND fibre-type textures. [...]

Metastable Site in Amorphous Carbon Lattice Generated by Rapid Quenching of Liquid Diamond

Lee J-G, Lee K-R, Lee K.H., Lee S-C, Lee S-H., Lee J-G, Lee K-R, Lee K.H., Lee S-C, Lee S-H., Lee J-G, Lee K-R, Lee K.H., Lee S-C, Lee S-H., Lee J-G, Lee K-R, Lee K.H., Lee S-C, Lee S-H., Lee J-G, Lee K-R, Lee K.H., Lee S-C, Lee S-H., Korea Institute of Science and Technology, KR

Formation of amorphous structure of carbon by rapid quenching of the liquid phase was investigated by molecular dynamic (MD) simulation using Tersoff’s empirical potential. Physical properties of crystalline diamond, such as lattice parameter, surface energy [...]

Molecular Dynamics Study on Deposition Behaviors of Au Nanocluster on Substrates of Different Orientation

Lee J-G, Lee K-R, Lee K.H., Lee S-C, Lee J-G, Lee K-R, Lee K.H., Lee S-C, Lee J-G, Lee K-R, Lee K.H., Lee S-C, Lee J-G, Lee K-R, Lee K.H., Lee S-C, Hwang N.M., Korea Institute of Science and Technology, KR

Effects of the substrate orientation on the homo-epitaxial rearrangement of the deposited Au cluster were studied by molecular dynamics (MD) simulation using embedded-atom method (EAM) potential. (011), (001), and (111) low indexed surfaces were used [...]

Field Emission of Carbon Nanotubes and the Electronic Structure of Fullerenes Encapsulated in Carbon Nanotubes

Cho Y., Kim G., Lee S., Ihm J., Seoul National University, KR

We have performed first-principles calculations on the field emission of carbon nanotubes. The three-dimensional character of the current source, as well as the effect of the external electric field, are explicitly considered. The calculated electron-leakage [...]

CMOS RF Modeling and Parameter Extraction Approaches Taking Charge Conservation into Account

Je M., Kwon I., Han J., Shin H., Lee K., Korea Advanced Institute of Science and Technology, KR

A charge conserving small-signal equivalent circuit with very simple and accurate parameter extraction method for a three-terminal CMOS RF model is presented. We found that significant errors in circuit performances can be obtained if charge [...]

Extraction of Coupled RLC Network from Multi-level Interconnects for Full Chip Simulation

Yoon S., Won T., Inha University, KR

In this paper, an approach is proposed for extracting coupled RLC network from multi-level interconnects. The proposed approach starts with a step of partitioning the layout of the full-chip under consideration into several sub-layouts, followed [...]

A Novel Scheme of Mesh Generation from an Arbitrary Topography for MEMS Analysis

Kwon O-S, Yoon I-T, Yoon S-H, Yoon S-I, Yoon I-T, Yoon S-H, Yoon S-I, Ha T-S, Yoon I-T, Yoon S-H, Yoon S-I, Won T-Y, Inha University, KR

Binding energies for an exciton (X) trapped in the two-dimensional quantum dot by a charge impurity located on the z axis at a distance from the dot plane are calculated by using the method of [...]

Nonlinear Micromachined Flexure for Stiction Reduction

Shim D-H, Cho J-W, Samsung Advanced Institute of Technology, KR

This paper reports the nonlinear micromachined flexure to reduce the stiction in MicroElectroMechanical Systems (MEMS). Good electrical contacts are essential in the applications like MEMS switches or relays. In this case high contact forces are [...]

Prediction Model of Microlens Fabricated by Modified LIGA Process

Kim D.S., Lee S-K, Lee S.S., Yang S.S., Kwon T.H., Lee S-K, Lee S.S., Pohang University of Science and Technology, KR

In this paper, we present a prediction model for microlens formation by means of a deep X-ray lithography followed by a thermal treatment of a PMMA (Polymethyl-methacrylate) sheet. According to this modeling, X-ray irradiation causes [...]