• Title/Summary/Keyword: Military Units

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Practical Semiactive Control of Hydropnematic Suspension Units (유기압 현수장치의 반능동 제어 구현에 관한 연구)

  • 이윤복;송오섭
    • Journal of the Korea Institute of Military Science and Technology
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    • v.6 no.4
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    • pp.9-21
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    • 2003
  • This paper describes the practical implementation of a semiactive hydropneumatic suspension system to provide the high off-road performance of military tracked vehicles. Real gas behavior of a spring system, frictional forces of joints, and the dynamics of a continuously variable damper are considered. The control system is consisted of two control loops, an outer loop calculates a target spool position which can deliver the required damping force and an inner loop tracks the required spool position. Dynamic tests of the one axis model show that the semiactive suspension system considerably reduces the acceleration as well as velocity and displacement of the sprung mass than the passive one.

A Comparison of EMG Amplitude between the Biceps Brachii and the Quadriceps Femoris Muscles in Static Exertions (상완이두근과 대퇴사두근의 등장성 수축에 대한 EMG Amplitude의 비교${\cdot}$분석)

  • Lee, Koo-Hyung;Lee, Nyun-Woo
    • Journal of the military operations research society of Korea
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    • v.8 no.1
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    • pp.77-98
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    • 1982
  • Experiments have been performed for estimating the individual muscle capabilities of the biceps brachii and the quadriceps femoris muscle. The surface EMG has been recorded on the bellies of the biceps brachii and the quadriceps femoris muscle during isometric contractions at $50\%,\;75\%,\;and\;100\%$ MVC. The rectified EMG amplitudes of the maximum voluntary contraction (MVC) were in the range of $2.8\~3.0\;mV\;and\;6.9\~7.2\;mV$ the biceps brachii and the quadriceps femoris, respectively. In the biceps brachii, Type S motor units were recruited in the range of $41\~49\%$ MVC; and Type F motor units were recruited in the range of $51\~59\%$ MVC, In the quadriceps femoris, Type S, Type SF, and Type F motor units were recruited in the ranges of $31\~38\%,\;33\~48\%$, and $21\~29\%$ MVC respectively.

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A Study on Defense Robot Combat Concepts Using Fourth Industrial Revolution Technologies

  • Sang-Hyuk Park;Jae-Geon Lee;Moo-Chun Kim
    • International Journal of Advanced Culture Technology
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    • v.12 no.1
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    • pp.249-253
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    • 2024
  • The ultimate purpose of this study is as follows: The current primary concern in the defense sector revolves around how to strategically utilize Fourth Industrial Revolution technologies in combat. The Fourth Industrial Revolution denotes a shift towards an environment where automation and connectivity are maximized, driven by technologies such as artificial intelligence. Coined by Klaus Schwab in the 2015 Davos Forum, this term highlights the significant role of machine learning and artificial intelligence. Particularly, the military application of Fourth Industrial Revolution technologies is expected to be actively researched and implemented. Combat involves military actions between units, typically conducted as part of a larger war, with units striving to achieve one or more objectives. The concept of combat refers to the fundamental ideas of how units should engage with the enemy, both presently and in future scenarios, to achieve assigned objectives.

The Study on the Sustainable Sharing Plans of Military Installations for a Civil Military Co-existence (민군상생을 위한 지속가능한 군사시설 공유방안 연구)

  • Park, Young Jun;Son, Kiyoung
    • Korean Journal of Construction Engineering and Management
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    • v.17 no.2
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    • pp.110-117
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    • 2016
  • This paper shows procedure and strategies to improve military facilities and local residents' welfare through a civil-military sustainable cooperation project. Military installations tend to impede urban developments, so that a few civil compliant have been often filed. Meanwhile, it is sometimes impossible to relocate military units due to their own unique purpose, even though they belong to core sites of civil developments, which are generally indispensible due to urban expansion, magnified road networks and so on. The solution to offset these conflicts between civil and military demands, which are associated with military units and urbanization surrounding them, is to establish sustainable strategies which enable both civil and military be beneficial. In this study, it is described, decision making procedure to make some facilities of a military unit be better as well as promote local residents' welfare through securing high-quality sports facilities. Delphi-technique and Paired Comparison Method are used to collect civil and military opinions regarding sustainable agreements. As a case study, a civil military cooperation project between a military unit and a local government is introduced. With successful projects, it is expected that the better installations could lead positive images of a military unit, provide advanced athletic environments for both local residents and military personnels, and lessen defense cost to maintain them. Moreover, this project will go down as a paragon of civil military sustainable cooperation.

Factors Associated with Health Status of Male Military Officers (남자 직업군인의 건강수준 관련 요인)

  • Kim, Bong-Jeong;Jeong, Ae-Suk;Lee, Ju-Yul
    • Korean Journal of Health Education and Promotion
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    • v.26 no.3
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    • pp.49-62
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    • 2009
  • Objectives: To identify factors affecting the health of male professional soldiers. Methods: Cross-sectional questionnaire data was collected from a randomly stratified sample population of 763 officers and sergeants who were employed in 34 units in the Korean military. Data were statistically analyzed using Chi-square test and multiple logistic regression analysis. Results: Work environment and personal health behavior were influential factors, which were differentiated by recent disease history including cardiovascular disease and self-rated health status. Sergeants in special forces/units or engaged in front-line military activities, and soldiers who were current smokers and heavy drinkers were more likely to have been diagnosed with a disease in the preceding three months. Those who were older, obese, and heavy drinkers were more likely to have cardiovascular disease than those who were less obese and more physical active. Soldiers exhibiting signs of extreme stress were more likely to poorly self-rate their health status. Conclusion: Health behaviors and characteristics of work environment significantly influence the health status among Korean professional soldiers. Health promotion strategies are needed to change individual heath behaviors such as smoking, alcohol consumption, and work stress. A healthier working environment should also be promoted.

A Study on Development Process of Military library in the United States of America and the U.S. Armed Forces library Services during the Korea War (미국의 병영도서관의 발전과정과 한국전쟁 중의 병영도서관 서비스에 관한 연구)

  • Song Sung-Sub
    • Journal of Korean Library and Information Science Society
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    • v.36 no.3
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    • pp.257-273
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    • 2005
  • This study inquired into the significance and the Process of development of military library being recently issued as a movement to establish a library In the military units in Korea, focusing on the library management of military in the United States. Firstly, the history of military libraries in the United States and military library service of the U.S. Armed Forces during the Korea War was investigated and analyzed. And, the establishing status, organization, and the contents of library service program in the United States was researched.

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Psychiatric Evaluation of Maladaptive Male Conscripts in a Division of the Republic of Korean Army : Focus on Green Camp Participants (한국 육군 일개 사단에서 군 복무 부적응자들의 정신의학적 평가 : 그린캠프 참가자들을 중심으로)

  • Kim, Ju-Hyun;Kang, Suk-Hoon;Ye, Byoung-Seok;Hwang, Hyun-Kuk;Suh, Jae-Won;Chai, Gong-Ju;Lee, Hwan-Bae;Kim, Chan-Hyung
    • Anxiety and mood
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    • v.6 no.2
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    • pp.131-136
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    • 2010
  • Objectives : In this study, we aimed to elucidate the demographic and psychological characteristics of maladaptive soldiers in the Republic of Korean Army. Methods : Study participants included 110 male conscripts who had participated in the Green camp, which was a form of group psychosocial treatment program for maladaptive soldiers. All participants were interviewed and diagnosed by a psychiatrist, and classified into two groups according to whether they left or rejoined the army. We analyzed the differences between these two groups in terms of demographic features, psychiatric diagnosis and the Minnesota Multiphasic Personality Inventory (MMPI) subscores. Results : Compared with soldiers who rejoined their units, those who left military service exhibited significantly lower educational level (p=0.041) and a higher rate in psychiatric treatment prior to enlistment (p=0.011). Among the 106 subjects, 63 (59.4%) and 23 (21.7%) were diagnosed with personality disorder and adjustment disorder, respectively. Further, those who left military service were diagnosed more frequently with mood disorder (p=0.001) and schizophrenia (p=0.014) than those who rejoined their units. Additionally, the MMPI scores of soldiers who left military service were significantly higher on the psychasthenia (p=0.028) and schizophrenia (p=0.039) scales than those of soldiers who rejoined their units. Conclusion : Most of the maladaptive soldiers were diagnosed with mental disorders. The results of this study suggest that systematic, consistent psychiatric evaluation and intervention for maladaptive male conscripts is crucial in the Republic of Korean army.

A Case Study on The Drone Battle between Azerbaijan and Armenia

  • Sang-Hyuk Park;Seung-Pil Namgung;Sung-Kwon Kim
    • International Journal of Advanced Culture Technology
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    • v.11 no.3
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    • pp.94-98
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    • 2023
  • This study analyzes the combat case involving military drones during the Azerbaijan-Armenian War, which erupted on September 27, 2020. The background of the war revealed that Azerbaijan extensively and aggressively employed offensive drones, which played a decisive role in reshaping the dynamics of the battlefield. Despite Azerbaijan's GDP of $4.639, which corresponds to the level of a developing country, and its 64th rank in global military strength, the country boldly allocated a significant portion of its budget to develop its drone capabilities in preparation for the war. As a result, Azerbaijan effectively utilized offensive drones acquired from Turkey and Israel to neutralize hundreds of tanks, armored vehicles, artillery units, and air defense systems. The purpose of this study is to examine this context and explore how our Korean military organization can enhance its combat capabilities by developing a drone combat system, thereby enabling an effective response posture against multifaceted threats.

Utilizing Future Female Personnel in the South Korean Military

  • Myung-Sook Hong;Sang-Keun Cho;Eui-Chul Shin;In-Chan Kim;Jong-Hoon Kim;Sung-Hu Kang;Sang-Hyuk Park
    • International Journal of Advanced Culture Technology
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    • v.11 no.1
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    • pp.147-152
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    • 2023
  • The South Korean military has undergone four changes in operating methods since its inception with 31 nursing officers in August 1948. While it initially began as a special unit for nursing and other specialized services, it later expanded to include various fields including technology, administration, and special forces. However, analysis shows that there have been few significant changes in how it operates and remains largely centered around technology, administration, and special forces. With the development of advanced science and technology and a decrease in military resources, there is a need for the South Korean military to proactively expand its use of female personnel, as has been done by the US military, Canadian military, Israeli military with female conscription, and Norwegian military. In order to achieve this, there needs to be a cultural shift towards co-ed military units, improvements in facilities and equipment, adequate pay and benefits, and resolution of childcare issues through institutional reforms.

Application of Augmented Reality Technology to small-unit's field training and Legal System Analysis (증강현실 기술의 소부대 야외 전술훈련 활용 방안 및 법제도에 관한 고찰)

  • Kim, Kyoung Min;Park, Sangjun;Kim, Jee Won;Kim, Hoedong
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.22 no.7
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    • pp.963-969
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    • 2018
  • According to the dictionary definition Augmented Reality Technology is "an enhanced version of reality where live direct or indirect views of physical real-world environments are augmented with superimposed computer-generated images over a user's view of the real-world, thus enhancing one's current perception of reality". Since civilian property damages, noise and accidents during the field exercise by military or drills so that AR technology are indispensible with small units drills in Army. However because AR technology which Army has adopted are usually use for special units or need separate spaces which costs lots of budgets, those are not fit for small unit drills or tactics in regular Army. In this regards this paper suggests the AR technology which can apply small unit drill field and the efficiency and legal concerns thereof as well.