http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Young-Joon Yang,Osamu Kadosaka,Masahiko Shibahara,Masashi Katsuki,Si-Pom Kim 대한기계학회 2004 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.18 No.12
Surface degreasing method with premixed flame is proposed as the removal method of adherent impurities on materials. Effects of adherent molecular thickness and surface potential energy on evaporation rate of adherent molecules and molecular evaporationmechanism were investigated and discussed in the present study. Evaporation processes of adherent molecules on surface molecules were simulated by the molecular dynamics method to understand thermal phenomena on evaporation processes of adherent molecules by using high temperature gas like burnt gas. The calculation system was composed of a high temperature gas region, an adherent molecular region and a surface molecular region. Both the thickness of adherent molecules and potential parameters affceted the evaporation rate of adherent molecules and evaporation mechanism in molecular scale.<br/>
Homogeneous and Heterogeneous Nucleation Simulation by Molecular Dynamics on Parallel Computers
Donguk Suh(서동욱),Woong-sup Yoon(윤웅섭),Masahiko Shibahara(시바하라 마사히코) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.10
Molecular dynamics (MD) on parallel computers was used to investigate homogeneous and heterogeneous nucleation. The behavior of Lennard-Jones (LJ) molecules were studied inside a system where all dimensions of the wall were periodic and a carrier gas within the system controlled the temperature. The results with and without a seed particle were compared subject to various thermodynamic conditions. Moreover, the effects of the number of the seeds were also studied. We confirmed that even when the supersaturation ratio is inadequate for homogeneous nucleation, in some conditions, once a seed is introduced to the system, a cluster is formed. Furthermore, the addition of seeds not only enhances nucleation but renders coagulation as an important nucleation mechanism.
고온가스에 의한 표면부착분자 증발ㆍ제거과정의 분자동역학적 연구
양영준(Youngjoon Yang),이치우(Chiwoo Lee),시바하라 마사히코(Masahiko Shibahara) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The interaction between adherent molecules and gas molecules was modeled in molecular scale and simulated by the molecular dynamics method in order to understand the evaporation and removal processes of adherent molecules on metallic surface using high temperature gas flow. Methanol molecules were chosen as adherent molecules to investigate effects of adhesion quantity and gas molecular collisions because the industrial oil has too complex structures of fatty acid. The effects of adherent quantity, gas temperature and surface temperature for the evaporation rate of adherent molecules and the molecular removal mechanism were investigated and discussed in the present study. Evaporation and removal rates of adherent molecules from metallic surface calculated by the molecular dynamics method showed the similar dependence on surface temperature shown in the experimental results.
나노구조기판의 형상 및 온도변화에 따른 액체 클러스터의 거동에 대한 분자동역학적 연구
고선미 ( Sun Mi Ko ),정흥철 ( Heung Cheol Jeong ),최경민 ( Gyung Min Choi ),김덕줄 ( Duck Jool Kim ),( Masahiko Shibahara ) 한국액체미립화학회 2008 한국액체미립화학회지 Vol.13 No.1
Molecular dynamic simulations have been carried out to study the effect of the nano-structure substrate and its temperature on cluster laminating. The interaction between substrate molecules and liquid molecules was modeled in the molecular scale and simulated by the molecular dynamics method in order to understand behaviors of the liquid cluster on nano-structure substrate. In the present model, the Lennard-Jones potential is applied to mono-atomic molecules of argon as liquid and platinum as nano-structure substrate to perform simulations of molecular dynamics. The effect of wettability on a substrate was investigated for the various beta of Lennard-Jones potential. The behavior of the liquid cluster and nano-structure substrate depends on interface wettability and function of molecules force, such as attraction and repulsion, in the collision progress. Furthermore, nano-structure substrate temperature and beta of Lennard-Jones potential have effect on the accumulation ratio. These results of simulation will be the foundation of coating application technology for micro fabrication manufacturing.