• 제목/요약/키워드: Military Science

검색결과 3,329건 처리시간 0.027초

군 병영시설의 실내 공기질 평가 및 특성 (The Assessment and Characteristics for Indoor Air Quality in Military Barracks)

  • 김석봉;정상조;백상호;김태욱;박영준
    • 한국군사과학기술학회지
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    • 제10권4호
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    • pp.168-175
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    • 2007
  • In this study, the Indoor Air Quality(IAQ) in military barracks is evaluated and its characteristics is discussed as well. The military barracks of R.O.K Army are categorized into three types and the IAQ in these individual facilities is measured for 24 hours both in summer and winter. Test results show that the particulate matters($PM_{10}$) and carbon dioxide($CO_2$) were the main causes contaminating IAQ in military barracks. While $CO_2$ can be purified by ventilation, adequate facilities have to be installed in case of the new type of combination barracks to remove $PM_{10}$. In addition, to improve the living condition of military barracks and to recover IAQ in new combination style barracks which is planned to complete by 2011, a standard or law regulating IAQ in military barracks has to be established.

장간조립교 주요 부재의 강도 분석 연구 (A Study on the Analysis for the Strength of Bailey Panel Bridge)

  • 이종우;유삼현;김인수;김태양;최현호;윤우섭;김영철
    • 한국군사과학기술학회지
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    • 제14권1호
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    • pp.15-21
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    • 2011
  • In this paper, the results of experimental analysis for the chemical composition and strengh verification of Bailey Panel Bridge have been presented. Some of main sections of bailey bridge colllected from military engineer troops were prepared for the chemical composition and strengh verification. The composition test and strength verification were conducted by using the optical microscope and Scanning Electron Microscope(SEM), Automatic Control Spark Emission Spectrometer(OBLF), X-ray Fluorescence Spectroscopy(XRF) and Instron measurement. The results showed that currently used sections of bailey bridge passed the strength verification and could be operated in drill of troops and battle fields.

기존의 예비군 동원 방식과 소셜네트워크를 응용한 새로운 동원 체계의 효율 및 확산 속도 비교연구 -을지 포커스 렌즈 훈련 상황 전제- (Comparing the application of social network service with existing method on the efficiency and velocity of spreading mobilization order -Based on the circumstance of Ulchi focus lens training of South Korean military-)

  • 성기석;강성우
    • 대한안전경영과학회지
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    • 제14권3호
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    • pp.183-191
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    • 2012
  • Since June 25th 1950, the beginning of the cold war (Korean war), Korean peninsula is still in a state of war. Officially South and North Korean government call a truceafter three years from the beginning day, however both countries are still having several combats in these days. So every Korean citizen male has duty for serving military duty and this lasts even after the serving regular military force, as reserved military. Although South Korea is very small country, the size of military is very large so informing all reserved military takes some time. Since this nation is confronting the enemy and considering the global potential threat, South Korean military needs expedite informing system to call up the reserved military to active duty. In this project, the current informing system has been analyzed and compared with the new method which is using social network service such as Twitter. However mobilization order is very critical. So in our new model there are two ways combined. Using twitter to inform and then use traditional ways to finish the order. This method will provide more efficient and accurate way to cover the call ups.

차기 군 위성통신 체계 및 운용에 대한 연구 (A Study on the System and Operation of the Next Military Satellite Communication)

  • 김진;하수철
    • 안보군사학연구
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    • 통권4호
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    • pp.419-442
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    • 2006
  • In this paper, we introduce the operational management architecture on the military satellite communication of United States and analyze the current problems of Korea military. We discuss on the development scheme and the idea of construction to manage and to operate the next military satellite communication stabilitly.

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군 장성 진급 제도 개선에 관한 연구-역량 평가위원회 제도 도입을 중심으로 (The Study of Assess Center Method Applied to Military General's Promotion System)

  • 김원형
    • 안보군사학연구
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    • 통권3호
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    • pp.243-263
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    • 2005
  • The purpose of present study is to applied center assess method to Military General's Promotion System. This study aim to examine assessment center method based on core competency model will be applied to Military General's Promotion System and Human Resource Management. This study propose that Military General's core competency model based on job analysis to identify competency of Army, Navy, Air Force's Generals and to identify the consequences and performances of assess center method. This study propose that assess center method applied to Military General's Promotion System have many kinds. Facilitated Simulation methods were Planning and Analysis /Oral Presentation, Presentation management Coaching, customer /Peer lnteraction. Non-facilitated Simulation methods were In-Basket game, Leaderless Group Discussion, role playing. And this study propose that Military General's assessment center method based on core competency model will be effective in Military field.

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Cordycepin inhibits chondrocyte hypertrophy of mesenchymal stem cells through PI3K/Bapx1 and Notch signaling pathway

  • Cao, Zhen;Dou, Ce;Li, Jianmei;Tang, Xiangyu;Xiang, Junyu;Zhao, Chunrong;Zhu, Lingyu;Bai, Yun;Xiang, Qiang;Dong, Shiwu
    • BMB Reports
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    • 제49권10호
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    • pp.548-553
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    • 2016
  • Mesenchymal stem cells (MSCs) are widely used in cartilage tissue engineering to repair articular cartilage defects. However, hypertrophy of chondrocytes derived from MSCs might hinder the stabilization of hyaline cartilage. Thus, it is very important to find a suitable way to maintain the chondrogenic phenotype of chondrocytes. It has been reported that cordycepin has anti-inflammatory and anti-tumor functions. However, the role of cordycepin in chondrocyte hypertrophy remains unclear. Therefore, the objective of this study was to determine the effect of cordycepin on chondrogenesis and chondrocyte hypertrophy in MSCs and ATDC5 cells. Cordycepin upregulated chondrogenic markers including Sox9 and collagen type II while down-regulated hypertrophic markers including Runx2 and collagen type X. Further exploration showed that cordycepin promoted chondrogenesis through inhibiting Nrf2 while activating BMP signaling. Besides, cordycepin suppressed chondrocyte hypertrophy through PI3K/Bapx1 pathway and Notch signaling. Our results indicated cordycepin had the potential to maintain chondrocyte phenotype and reconstruct engineered cartilage.

작전기상 지원을 위한 PC 클러스터 기반의 기상수치예보시스템 (A Numerical Weather Prediction System for Military Operation Based on PC cluster)

  • 이용희;장동언;안광득;조천호
    • 한국군사과학기술학회지
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    • 제6권4호
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    • pp.45-55
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    • 2003
  • Weather conditions have played a vital role in a war. Many historical records reported that the miss use of weather information is the main reason of the lost a war. In this study we demonstrated the possibility of applying the numerical weather prediction system(NWPS) for military operations. The NWPS consists of PC-cluster as a super computer, data assimilation system ingesting many remote sensing observation, and graphic systems. High resolution prediction in NWPS can provide useful weather information such as wind, temperature, sea fog and so on for military operations.

IDEA모델을 이용한 지방병무청 운영효율성 평가 (An Evaluation of the Operational Effectiveness of the Local Military Manpower Administrations Using IDEA Model)

  • 이재영
    • 경영과학
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    • 제22권1호
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    • pp.1-13
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    • 2005
  • This paper proposed a quantitative evaluation method to measure the operational effectiveness of the local military manpower administrations. The proposed method compared the relative operational effectiveness level for 12 local military manpower administrations in Korea.. The method used the IDEA (imprecise Data Envelopment Analysis) model which Is able to measure relative operational effectiveness level, and also used two input variables (labor cost, operational cost) and three output variables (number of military applicants, number of civil application approved & processed, management accuracy level). Through the model output analysis, we presented the relative effectiveness scores, the reason for non-effectiveness, and the relationship between non-effective ness level and input/output variables for each local military manpower administration. We also presented a few recommendations how to improve the effectiveness level on particular local military manpower administration.

전투복 최적 표준 호수 결정에 관한 연구 (A Study on Determination of Optimal Standard Sizes for Military Combat Fatigues)

  • 김충영;백창현
    • 경영과학
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    • 제14권1호
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    • pp.53-66
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    • 1997
  • Generally, the standard sizes of military combat fatigues should be determined by considering the coverage rate in order to minimize the military personnel who can't put on the ready made military combat fatigues. The coverage rate should be increased by the longer interval of the standard size but the satisfactory rate will be decreased due to the longer interval of size. This study develops a method selecting optimal standard sizes of the military combat fatigues in order to maximize the satisfactory rate that insures the coverage rate to meet a given level for ready made military combat fatigues. This method selects candidate standard sizes at second and finally, establishes a 0-1 inter programming model. The result shows that the method increases both coverage and satisfactory rate more than those of the previous method.

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