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12주간의 규칙적인 복합운동 프로그램이 비만노인의 신체구성과 간기능에 미치는 영향
안도열,최병환 한국웰니스학회 2012 한국웰니스학회지 Vol.7 No.2
The purpose of this study was to investigate the changes of body composition and liver function in obese elderly people after complex exercise programs. These people were classified to two groups, who one group or exercise group(n=13) was participating in an exercise program for 12 weeks, and the other group or non-exercise group(n=13) was not in that program. And the exercise programs were performed by warm up, work-out(involving aerobic exercise and resistance training), and then cool down. The results of all the Studies and inspections are as followed: At first, in the body composition, there were significant differences in body weight, muscle mass, fat mass, percent fat, and body mass index in exercise group. At second, in the liver function, there were no significant differences in both exercise group and control group. But there were a significant differences in T. Bilirubin in control group. In conclusion, the investigation of this paper has shown the results, which involved in positive changes of 12 weeks complex exercise programs on body composition(ex, fat mass) in elderly people who had been to exercise regularly.
Orbital Quantum Bit in Si Quantum Dots
안도열,오정현,황성우,Ahn, D.,Oh, J.H.,Hwnag, S.W. The Korean Superconductivity Society 2006 Progress in superconductivity Vol.8 No.1
In this paper, current status of experimental and theoretical work on quantum bits based on the semiconductor quantum dots in the University of Seoul will be presented. A new proposal utilizing the multi-valley quantum state transitions in a Si quantum dot as a possible candidate for a quantum bit with a long decoherence time will be also given. Qubits are the multi-valley symmetric and anti-symmetric orbitals. Evolution of these orbitals is controlled by an external electric field, which turns on and off the inter-valley interactions. Initialization is achieved by turning on the inter-valley Hamiltonian to let the system settle down to the symmetric orbital state. Estimates of the decoherence time is made for the longitudinal acoustic phonon process.
Hawking Effects on the Entanglement near a Schwarzschild Black Hole
안도열 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.50 No.2
Hawking radiation effects on an entangled pair near the event horizon of a Schwarzschild black hole are investigated. The Hawking radiation was found to degrade both the quantum coherence of the entangled state and the mutual correlations of the entangled pair. When the black hole evaporated completely, the measure of entanglement vanished, but the classical correlation between the entangled pair still remained.