• 제목/요약/키워드: Human impact

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인간 뇌의 충격 부상에 대한 유한요소모델 개발에 관한 연구 (Development of Finite Element Model for impact Human Brain Injury)

  • 김영은;남대훈;왕규창
    • 한국자동차공학회논문집
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    • 제4권4호
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    • pp.97-106
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    • 1996
  • The impact response of the human brain has been determined by three-dimensional finite element modeling. The model includes a layered shell closely representing the cranial bones with the interior contents occupied by an incompressible contimuum to simulate the brain. Flax and tentorium modeled with 4 node membrane element were also incorporated. The computed pressure-time histories at 4 locations within the brain element compared quite favorably with previously published experimental data from cadaver experiments. A parametric study was subsequently conducted to identify the model response when the impact were varied.

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The Financial Performance of Korean Manufacturing SMEs: Influence of Human Resources Management

  • KHAN, Umair;ZHANG, Yongan;SALIK, Madiha
    • The Journal of Asian Finance, Economics and Business
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    • 제7권8호
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    • pp.599-611
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    • 2020
  • The purpose of this study is to explore and empirically analyze the factors affecting the financial performance of Korean small- and medium-sized manufacturing companies, which are relatively insufficiently researched, in terms of human resource management (HRM). In particular, this study intends to examine the human resource management activities focusing on the individual influences of workers' attitudes on systems and policies as well as jobs and organizations. This study reviews previous research and discussions on the human resource management system, as well as the organization and job-related attitudes and financial performance of workers, for the formulation of two hypotheses. Among the HCCP data, the hypothesis was verified through reliability and correlation analysis and stepwise multiple regression analysis for small- and medium-sized manufacturing enterprises. The results show, firstly, that human resource systems and systems have the same effect, but there were differences in the degree of impact. Secondly, job satisfaction has a statistically significant influence on financial performance. Lastly, all worker/employee attitude determinants are statistically significant for both job satisfaction and organizational commitment. HRM, previously relatively overlooked, provided theoretical and practical implications by demonstrating the direct impact on financial performance and the impact of individual human resource management systems and policies.

태권도 옆차기 동작의 동력학해석과 충격해석에 관한 연구 (A Study on the Dynamic and Impact Analysis of Side Kick in Taekwondo)

  • 이중현;한규현;이현승;이은엽;이영신
    • 대한기계학회논문집A
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    • 제32권1호
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    • pp.83-90
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    • 2008
  • Taekwondo is a martial art form and sport that uses the hands and foot for attack and defense. Taekwondo basic motion is composed of the breaking, competition and poomsea motion. In the side kick among the competition motion, the impact force is larger than other kinds of kicks. The side kick with the front foot can be made in two steps. In the first step, the front foot is stretched forward from back stance free-fighting position. For the second step, the rear foot is followed simultaneously. Then, the kick is executed while entire body weight rests on the rear foot. In this paper, impact analysis of the human model for hitting posture is carried out. The ADAMS/LifeMOD is used in hitting modeling and simulation. The simulation model creates the human model to hit the opponent. As the results, the dynamic analysis of human muscle were presented.

Human Resource Management Practices and Employee Performance: The Role of Job Satisfaction

  • ALSAFADI, Yousef;ALTAHAT, Shadi
    • The Journal of Asian Finance, Economics and Business
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    • 제8권1호
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    • pp.519-529
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    • 2021
  • This study aims to investigate the impact of Human Resource Management Practices (HRMP) on improving Employee Performance (EP). The study is accomplished by hypothesizing the impact of HRMP on EP, additionally, this impact is theorized to be mediated through job satisfaction. Employee engagement is also taken into account because of the potential moderating effect it has within the theorized model. Data was collected from 480 questionnaires which were distributed among commercial banks' workers in Jordan and were analyzed using structural equation modeling techniques (SEM), path analysis, and confirmatory factor analysis (CFA). Analysis of a moment structures (AMOS) software version 24 was applied to complete our analysis. The results show that HRMP had a positive impact on EP, as well as job satisfaction and its components (job stability and job enrichment). The mediating role of job satisfaction (enrichment and stability) was discovered. Finally, employee engagement emerged as a moderating variable linking HRMP and EP. The findings of this study show the importance of the role played by job satisfaction and employee engagement in achieving human resources performance goals. Future analysis is recommended to gain deeper insight into the relationship between HRMP, job satisfaction, worker training, and performance appraisal.

전략적 인적자원관리가 혁신행동과 조직성과에 미치는 영향에 관한 연구 (A Study on the Effect of Strategic Human Resource Management on Innovation Behavior and Organizational Performance)

  • 김문준
    • 산업진흥연구
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    • 제5권1호
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    • pp.21-33
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    • 2020
  • 본 연구는 중소기업에서 조직구성원들이 지각하고 있는 전략적 인적자원관리가 조직성과와 혁신행동에 미치는 영향관계와 전략적 인적자원관리와 조직성과의 관계에서 혁신행동의 매개효과를 검증하기 위해 통계프로그램 SPSS 21.0프로그램을 활용하여 검증하였다. 첫째, 가설1인 전략적 인적자원관리(채용과 보상, 직무설계, 교육훈련과 경력관리, 의사결정 참여)는 조직성과에 정(+)의 영향관계에 대한 검증결과 긍정적 영향관계를 나타내어 가설 1은 채택이 되었다. 둘째, 전략적 인적자원관리(채용과 보상, 직무설계, 교육훈련과 경력관리, 의사결정 참여)는 혁신행동에 정(+)의 영향관계에 대한 가설 2를 검증한 결과 통계적으로 유의하게 나타내어 가설 2는 채택이 되었다. 셋째, 가설 3인 조직구성원들이 지각하고 있는 혁신행동은 조직성과에 유의한 정(+)의 영향관계를 나타낸 것으로 분석되었다. 따라서 가설 3은 채택이 되었다. 넷째, 가설 4인 전략적 인적자원관리와 조직성과 간의 영향관계에서 혁신행동의 매개효과를 검증한 결과 혁신행동은 부분매개를 하는 것으로 분석되었다. 즉, 조직구성원의 전략적 인적자원관리는 조직성과에 직접적인 영향을 미치지만, 자신의 직무수행에 있어 혁신행동을 거치면서 조직성과에 더욱 더 높은 긍정적인 영향관계를 나타낼 수 있다는 의미이다.

Effects of Asset Diversification and Human Capital Efficiency on Bank Performance: Evidence from Asian Countries

  • BAWONO, Suryaning;SANUSI, Anwar;SUPRIADI, Bambang;TRIATMANTO, Boge;WIDARNI, Eny Lestari
    • The Journal of Asian Finance, Economics and Business
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    • 제10권1호
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    • pp.123-132
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    • 2023
  • This study seeks to determine if the efficiency of bank human resources, as played by human capital, impacts the performance and diversification of banks. This study uses secondary data from data obtained from 385 commercial banks in 33 countries in Asia during the 2010-2020 period with the diversification analysis method. We use the Z-score to measure the amount of standard deviation that must be from earnings (ROAA). We examined it using the Tobit regression technique. According to the regression estimation results, human capital has a significant role in the performance and effective diversification of Asian banks. The human capital efficiency coefficient (HCE) is significantly negative with the cost-to-income ratio (CTIR) and significantly positive with Profitability, Financial Stability, and cost efficiency score. The level of efficiency of human resources has an effective role in increasing human capital which has an impact on bank diversification and performance. The development of human resources in a human capital framework plays an important role in the diversification and improvement of bank performance. Human capital has a significant role in the performance and effective diversification of Asian banks. The level of efficiency of human resources has an effective role in increasing human capital which has an impact on bank diversification and performance.

환경영향평가에서 건강위해성평가 기법을 이용하기 위한 실내공기 모델링 적용 (Application of Indoor Air Modelling for Using Health Risk Assessment in Environmental Impact Assessment)

  • 양원호;손부순;박종안;김임순;한상욱
    • 환경영향평가
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    • 제10권3호
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    • pp.211-221
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    • 2001
  • Recognizing interaction between the environment and humans, the EIA(environmental impact assessment) movement has sought to promote more environmentally sound and informed decisions for the sake of human welfare. Therefore, most EIA programs require the consideration of human health impacts. Yet relatively few EIA documents adequately address those impacts. This study was carried out to investigate the role of EIA for reuniting the environment and human health, for preventing and reducing significant health risks, and for improving human health impact assessment by means of risk assessment. Risk assessment consists of 4 components; hazard identification, dose-response assessment, exposure assessment and risk characterization. Since most people spent their times in indoor, indoor air quality modelling can be used in exposure assessment and risk assessment. In this study, indoor $NO_2$ concentration and personal $NO_2$ exposure were estimated by Box Model using mass balance equation and time weighted average, respectively. The estimated indoor $NO_2$ concentration and the personal $NO_2$ exposure were compared by those measured, respectively. Subsequntly, health effect was assessed with these results. Consequently, exposure assessment and risk assessment using indoor air quality model may be considered to be applicable to EIA.

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낙하 충격을 받는 다점 구속 장치를 착용한 헬기 승무원의 상해도 평가에 관한 연구 (A Study on the Injury Assessment of Helicopter's Crew with Multi Point Restraint System under Drop Impact)

  • 이중현;이영신
    • 대한기계학회논문집A
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    • 제33권6호
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    • pp.590-599
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    • 2009
  • In this paper, a method of modeling seat belts on crew seat during dynamic seat testing was studied. The body segments of the occupant were modeled with joints. The joints consisted with various stiffnesses, dampings, and frictions. Three types of seat belt restraint systems were investigated. The analysis for on the injury assessment of helicopter's crew under drop impact was conducted. The effectiveness of the seat belt system for crashworthiness and safety was evaluated. As the results of impact analysis, head, neck and spine of the crew can be easily damaged in the vertical direction more than the longitudinal direction. Based on the verified model, behavior of human body was studied with three-point restraint systems. The displacement and injury level of the 12-point restraint system was the smallest.

충격과 ZMP 조건을 고려한 인체 모델의 착지 동작 해석 (Landing Motion Analysis of Human-Body Model Considering Impact and ZMP Condition)

  • 소병록;김희국;이병주
    • 제어로봇시스템학회논문지
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    • 제11권6호
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    • pp.543-549
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    • 2005
  • This paper deals with modeling and analysis fer the landing motion of a human-body model. First, the dynamic model of a floating human body is derived. The external impulse exerted on the ground as well as the internal impulse experienced at the joints of the human body model is analyzed. Second, a motion planning algorithm exploiting the kinematic redundancy is suggested to ensure stability in terms of ZMP stability condition during a series of landing phases. Four phases of landing motion are investigated. In simulation, the external and internal impulses experienced at the human joints and the ZMP history resulting from the motion planning are analyzed for two different configurations. h desired landing posture is suggested by comparison of the simulation results.

A plant-specific HRA sensitivity analysis considering dynamic operator actions and accident management actions

  • Kancev, Dusko
    • Nuclear Engineering and Technology
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    • 제52권9호
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    • pp.1983-1989
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    • 2020
  • The human reliability analysis is a method by which, in general terms, the human impact to the safety and risk of a nuclear power plant operation can be modelled, quantified and analysed. It is an indispensable element of the PSA process within the nuclear industry nowadays. The paper herein presents a sensitivity study of the human reliability analysis performed on a real nuclear power plant-specific probabilistic safety assessment model. The analysis is performed on a pre-selected set of post-initiator operator actions. The purpose of the study is to investigate the impact of these operator actions on the plant risk by altering their corresponding human error probabilities in a wide spectrum. The results direct the fact that the future effort should be focused on maintaining the current human reliability level, i.e. not letting it worsen, rather than improving it.