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분산 체제에서의 Branch - Bound에 의한 Optimal Task Allocation에 관한 연구
장준영(Jung Young Chang),송정길(Jung Kil Song),김영찬(Young Chan Kim) 한국정보과학회 1987 한국정보과학회 학술발표논문집 Vol.14 No.1
본 논문에서는 분산 처리시스템을 위한 task의 최적할당을 구하기 위해 Dynamic Programming을 가진 Branch-Bound 알고리즘을 제시한다. 이 알고리즘을 통해 task을 할당함으로써 task의 수행비용과 통신비용을 최소화하여 분산 처리 시스템의 성능을 향상시키고 적절한 constraints 포함시킴으로서 응용요구와 부하균등을 성취할 수 있다.
비점오염원 저감을 위한 요소기술의 연계처리 운전 효과 검토
김화중 ( Wha Jung Kim ),박준석 ( Jun Seok Park ),서대석 ( Dae Seuk Seo ),김봉균 ( Bong Kyun Kim ),이준헌 ( Joon Heon Lee ),장준영 ( Jun Young Chang ),오종민 ( Jong Min Oh ) 한국수처리학회 2015 한국수처리학회지 Vol.23 No.1
Because reduction facilities of existing non-point pollution source weren`t balanced with each element technologies, most of case were what damaged scene nature of river, neutralized pollution sources and reduction effect. Therefore it`s necessary to find a solution by integrating the operation system. Based on the comparative analysis that we have ran, we examined the capacity at individual operation`s water purification and linked the treatment to detention pond, constructed wetlands and revetment. The results of an experiment revealed that the Individual Operation shows a high level of processing performance. However, in terms of definitive processing performance linked treatment operation showed a higher level than element technology. Although performance of the Individual Operation was declined due to media clogging etc, linked treatment operation showed consistent efficiency. Therefore it has been evaluated that the linked treatment operation would improve performance on pollutant purification and run a stable operation.
이승엽,윤창교,민정아,이창욱,박동언,안종성,이상돈,백명재,장준영,양주연,채정호,Lee, Seung-Yup,Yoon, Chang-Gyo,Min, Jung-Ah,Lee, Chang-Uk,Park, Dong-Un,Ahn, Jong-Seong,Lee, Sang Don,Baik, Myung Jae,Jang, Jun Young,Yang, Juyoun,Chae, Jeo 대한불안의학회 2014 대한불안의학회지 Vol.10 No.1
Objective : To obtain the incidence rate of anxiety disorders among the active duty Korean military personnel, who visited the military hospitals from 2011 to 2013, this descriptive epidemiological study was performed. Methods : After acquiring the data for the anxiety disorders from Defense Medical Statistics Information System, the annual incidence rates were analyzed by forces, position status, and specific disease entities. Results : One thousand, nine hundred and thirteen (1,913) active duty male military personnel were diagnosed with any kinds of anxiety disorders in their first visit to the psychiatric outpatient department (OPD). The total OPD visit counts were 7,870 during the same period. Anxiety disorder, NOS was the most frequent disorder, followed by panic disorder. While the incidence rate for anxiety disorder, NOS decreased, panic disorder displayed increasing tendency. Stress-related disorders and obsessive-compulsive disorder were positioned third and fourth, respectively, for the number of first visit and they both showed decreasing tendency in annual incidence rates. Social anxiety disorder, specific phobias, generalized anxiety disorder (GAD) and mixed anxiety-depressive disorder followed next. The annual incidence rates for anxiety disorders showed decreasing tendency, particularly evident in army soldiers. However, naval officers showed higher anxiety disorder incidence rate compared to those of the army and the air forces. Conclusion : Comparing to general population, panic disorder was higher while specific phobias and GAD were lower in the Korean military. It is interesting to observe higher incidence rate for anxiety disorder in naval officers and warrants further evaluation.
수직자성박막에서 자구벽 속도 측정을 통한 샘플 재현성 확인 방법
문준(Joon Moon),이성협(Seong-Hyub Lee),김기태(Kitae Kim),박정현(Jung-Hyun Park),장준영(Jun-Young Chang),유지성(Ji-Sung Yu),최석봉(Sug-Bong Choe) 한국자기학회 2021 韓國磁氣學會誌 Vol.31 No.5
In this study, a method was developed to confirm the deposition reproducibility of the magnetic layer thickness through the magnetic domain wall velocity analysis in the perpendicular magnetic thin film. We analyzed the effect of magnetic layer thickness and magnetic anisotropy on the magnetic domain wall motion occurring in a perpendicular magnetic thin film composed of Pt/Co/Pt. It was confirmed that the creep scaling constant (α) changed rapidly in the thickness regime of the magnetic layer where perpendicular magnetic anisotropy was formed. Using this, it is possible to check the change of α with respect to the change in the thickness of the magnetic layer of several A.