• Title/Summary/Keyword: 인체역학

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Analysis of Golf Swing Motion and Applied Loads on the Human Body Using Soft-$Golf^{TM}$ Club (소프트 골프 클럽을 이용한 골프 스윙 동작과 인체 작용 하중 분석)

  • Kwak, Ki-Young;So, Ha-Ju;Kim, Sung-Hyeon;Kim, Nam-Gyun;Kim, Dong-Wook
    • Journal of the Korean Society for Nondestructive Testing
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    • v.31 no.5
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    • pp.472-478
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    • 2011
  • The purpose of this study was to analyze the kinetic effect of Soft-$golf^{TM}$ instrument on the human body structure. To analyze the kinetic effect of Soft-$golf^{TM}$ instrument, Golf swing using Soft-$golf^{TM}$ instrument and regular golf instrument was captured. And then Upper limbs and lumbar joint torques was calculated via computer simulation. Five man participated this study. Subjects performed golf swing using a regular golf and Soft-$golf^{TM}$ instrument. Golf swing motion was captured using three position sensor, active infrared LED maker and force plate. Golf swing model was generated and simulated using ADAMS/LifeMOD program. As a results, joint torque during Soft-golf swing were lower than regular golf swing. Thus soft-golf swing have joint load lower than regular golf swing and contribute to reduce joint injury.

Dioxins and Health: Human Exposure Level and Epidemiologic Evidences of Health Effects (다이옥신과 건강: 인체 노출 수준 및 건강영향에 대한 역학적 연구)

  • Jang, Jae-Yeon;Kwon, Ho-Jang
    • Journal of Preventive Medicine and Public Health
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    • v.36 no.4
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    • pp.303-313
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    • 2003
  • General information is summarized, that is necessary to introduce a scientific assessment of the human health and exposure issue concerning dioxin and dioxin-like compound. Scientific literatures were reviewed to assess the background exposures to the dioxin-like compounds for normal residents. Epidemiologic studies were also reviewed to assess malignant and nonmalignant sweets of dioxins. In 1997, the International Agency for Research on Cancer classified 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) as a human carcinogen, primarily based on occupational cohort studies. The US Environmental Protection Agency made the same decision in it's Draft Dioxin Reassessment. Epidemiologic evidences point to a generalized excess of all cancers, without any pronounced excess at specific sites. Reported non-cancer effects included a range of conditions affecting most systems. Among them, chloracne, elevation in gamma glutamyl transferase(GGT), and alterations in reproductive hormones are related to TCDO, Other adverse outcomes, such as lipid concentrations, diabetes, circulatory and heart diseases, immunologic disorders, neurobehavioral effects, and developmental outcomes require further study before their respective relationships to TCDD can be more definitively assessed.

A study of the Infantry Backpack System for Portability and Mobility Performance (보병용 배낭의 휴대 및 이동 성능에 관한 연구)

  • Chung, SungHak
    • Journal of the Korea Society of Computer and Information
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    • v.19 no.3
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    • pp.155-161
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    • 2014
  • The objective of this study is to weight analysis portable backpack system of infantry weapon systems for ergonomic design in manual materials handling tasks. For the product design, we analyzed the ergonomic guidelines and status of similar weapon systems by comparing the efficient operation performance provide for the basic data. Result of this study, the relationship between portability and mobility presented for schematic. In the short distance of the short biomechanical criterion, 1-2 hours in the middle of moving psychophysical criterion, 4 hour or more long-distance criterion applied for the physiological criterion for easy of trade-offs that need to be considered. This study suggests for 4 research items for infantry backpack system in manual materials handling tasks. Throughout the result of anthropometric populations, the 5%tile body weight for -0.91kg but 95%tile in 34.17kg considered to be margin for free, easy and efficient operation for the weight margin between portability and mobility in manual materials handling tasks.

Study on characteristics of air pollutant in $PM_{10}$ in costal city (해안도시지역에서 $PM_{10}$중 대기오염물질 특성에 관한 연구)

  • 차영희;강달선;송재종;김성천
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 1999.10a
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    • pp.35-36
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    • 1999
  • 최근 대기 중에 부유하는 입자상 물질의 농도와 인간의 질병 및 사망률에 관한 역학적 연구들은 대기중 부유분진에 대한 많은 관심들을 불러일으켜 오고 있다(Ackermann et at., 1997). 우리나라에서도 총 부유분진인 TSP 및 이와는 별도로 인체에 더욱 유해한 공기역학적 직경이 $10\mu\textrm{m}$ 미만인 먼지, 즉 $PM_{10}$을 대기 환경기준 항목으로 설정, 관리해 오고 있으며, 더 나아가 미국등 선진국에서는 인체의 영향 측면에서 더욱 더 심각한 영향을 미칠 수 있는 직경 $2.5\mu\textrm{m}$ 미만의 입자인 $PM_{2.5}$에 대한 규제를 시행해 오고 있다(QUARG, 1996).(중략)

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A Study of Portability and Mobility for Infantry Weapon System (보병용 무기체계의 휴대성 및 이동성에 관한 연구)

  • Chung, SungHak;Son, SungHan
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2013.07a
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    • pp.141-143
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    • 2013
  • 본 연구에서는 인력물자취급시 역사적 관점에서 생리학적 연구방법, 생체역학적 연구방법, 인체심리학적 연구방법들을 검토하여 보병용 무기체계의 휴대성 및 이동성을 분석하였다. 본 연구에서는 휴대성과 이동성 간의 관계를 도식하였다. 단거리의 짧은 기동거리에서는 생체역학적 기준치를, 1-2시간의 중간인 이동에서는 인체심리학적 기준치를, 4시간 혹은 그 이상의 장거리에서는 생리학적 기준치를 적용하여 각각의 가이드라인들을 상호 절충하는 것이 필요한 것으로 판단된다. 본 연구에서는 보병의 물자취급시 4가지 연구방법을 제안하였다.

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Size Distribution of Metals and Ionic Species of $PM_{10}$ in Industrial Complex of Gunsan(Korea) (군산 산단의 PM10 중 금속성분과 이온성분의 크기 분포)

  • 김성천
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2003.11a
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    • pp.405-406
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    • 2003
  • 현재 우리나라 입자상물질에 대한 대기환경기준은 공기역학적 직경 10 $\mu\textrm{m}$ 이하인 PM$_{10}$ 기준이 연평균 70 $\mu\textrm{g}$/㎥ 및 일평균 150 $\mu\textrm{g}$/㎥이다. 그러나 영국의 PM$_{10}$ 기준은 24시간 평균 50 $\mu\textrm{g}$/㎥로 강화하여 입자상물질에 의한 건강피해를 줄이기 위해 노력하고 있다(EPAQS, 1995). 분진은 공기역학적 직경 2.5 $\mu\textrm{m}$를 기준으로 미세입자와 거대입자로 나누어지는 쌍극분포의 형태(Whitby et al., 1972)를 나타내며, 분진이 인체에 미치는 영향에 관한 많은 연구를 통해 10 $\mu\textrm{m}$ 이하의 입자가 호흡성 분진으로 인체에 더 유해한 영향을 미치고 있음이 밝혀졌다(Emison, 1988). (중략)

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A Study on Development of 3D Analysis Tool for Estimation of Body Segment Parameter (인체분절계수 추정을 위한 CT 영상기반 3D 분석도구 개발에 관한 연구)

  • Park, Seong Bin;Chung, Kyung-Ryul;Choi, Chunho;Kim, sa-yup
    • Proceedings of the Korea Contents Association Conference
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    • 2011.05a
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    • pp.325-326
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    • 2011
  • 인체의 질량분포, 부피, 무게중심 등은 운동역학적 변인들을 분석하기위한 중요한 파라미터로 활용된다. 본 연구는 이러한 파라미터, 즉 인체분절계수를 추정하기 위한 분석도구의 개발에 관한 연구이다. 분석은 CT촬영을 통해 얻어진 2차원 의료영상데이터에 대해, 영상정보를 읽어 watershed 알고리즘을 통해 체성분에 따라 지방조직, 뼈조직, 근육조직에 따른 영역경계를 반 자동으로 구분할 수 있다. 분절계수의 추정은 최종적으로 확보한 영상에 대해, 분절경계면을 구분하여 이에 따른 질량, 부피 및 무게중심에 대한 비율을 계산하고 결과는 CSV 타입으로 저장한다. 개발된 분석도구는 연구목적에 따라 다양하게 분절화가 가능할 뿐만 아니라 영상데이터의 확보를 통해 인체분절계수 데이터베이스의 확장 구축에 기여할 수 있다.

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Epidemiological Aspects and Trends of the Extensive Eradication Programs for Bovine Brucellosis Outbreaks-Associated Human Brucellosis in Korea, 2002~2013

  • Lee, Won-Chang;Yoon, Hachung;Lee, Myeong-Jin;Kwon, Young Hwan
    • Korean journal of aerospace and environmental medicine
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    • v.29 no.2
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    • pp.72-76
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    • 2019
  • Over the last decade, human brucellosis (HB) has become a principal zoonosis in Korea. The objective of this study was observing the epidemiological trends of the extensive eradication programs for bovine brucellosis (BB) outbreaks-associated HB in Korea from 2002 to 2013. The raw data analysis in this study was obtained from the website of brucellosis outbreaks by Korea Center for Disease Control and Prevention (KCDC) and Animal and Plant Quarantine Agency (QIA), Korea, 2002~2013. The number of cases of BB outbreaks-associated HB in Korea was increased after 2003 and peaked in 2006 before decreasing thereafter. There were a total of 89,240 infected BB in domestic cattle with a cumulative incidence rate (CIR) of 611.8 per 100,000 cattle; during the same period there were a total of 703 cases of HB with a CIR of 0.12 per 100,000 persons. Moreover, the correlation coefficient of brucellosis outbreaks between cattle and human was highly significant (r=+0.985). The attack ratio of HB was 7.88 per 1,000 BB cases. All of the control measures of HB were applied in the extensive eradication programs for brucellosis outbreaks of infection source in domestic animals and contributed significantly to the reduction in the outbreaks of HB in Korea.