• 한국안전학회지
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• 제29권4호
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• pp.180-183
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• 2014

The purpose of this study is to assess for scattering object for the missile ejection round due to analysis of the human body effectiveness safely. To achieve this goal the measurement method of scattering objects by comparative 2 measurement methods studied, the risk of scattering of the object is evaluated. Result of this study, applied in Europe and Japan, based on the safety criteria for the human body effectiveness when missile ejection round. data showed is not effectiveness to the operator's body safely. Data showed that satisfies the safety criteria for missile ejection round in Europe and Japan through the similarity for the case studies. In case of these safety criteria does not exist regulation in South Korea, this study will be referred as guidelines are considered.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.314-314
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• 2000

This study deals with the analysis of the effectiveness of a safer belt in frontal crash. ATB, Articulated Total Body, program is used as a dynamics solver of the occupant model. ATB is a public code, however, the program is somewhat cumbersome to use due to lack of sufficient user interface. A preprocessor and a postprocessor are, therefore, developed for a user friendly graphic interface in Windows environment. Dialog boxes are used for an interface with GEBOD, Generator of Body Data, for human anthropometry and with ADAMS for vehicle dynamics. It is found through three test simulations that simulated results are in good agreement with those obtained by ATB. The effect of the initial slack of safety belt is investigated for frontal crash using the developed program.

• 한국자동차공학회논문집
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• 제10권5호
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• pp.214-222
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• 2002

Computer simulations are widely used to analyze passenger safety in simulated traffic accidents. ATB, Articulated Total Body, is a computer simulation model developed to predict gross human body response to such dynamic environments as vehicle crashes and pilot ejections. ATB, whose code is open, has high flexibility and application capability that users can easily insert defined modules and functions. ATB is, however, inconvenient as it was coded in FORTRAN and it needs a formated input file. Moreover, it takes much time to make input files and to modify coding errors. This study aims to increase user friendliness by adding a preprocessor program, WINATB(WINdows ATB), to the conventional ATB. WINATB, programmed in Visual C＋＋ and OpenGL, uses ATB IV as a dynamic solver. The preprocessor helps users prepare input files through graphic interface and dialog box. An additional postprocessor makes the graphical presentation of simulated results. In these case of the frontal crash, the rear impact and the side impact, the simulation results obtained by WINATB and MADYMO(MAthematical Dynamic Model) are compared to validate the effectiveness of WINAIB.

• 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.

• 한국정밀공학회지
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• 제17권12호
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• pp.169-175
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• 2000

Stable and comfortable walking supports, which can reduce the body weight load partially, are needed for the recovering patients from neurologic disease and orthopedic procedures. In this paper, the development of a manipulator of rehabilitation robot for the patients with walking disabilities are studied. A force controller using pneumatic actuators is designed and implemented to the human friendly rehabilitation robot considering the safety of patients, reliability of the system, effectiveness of the unloading control and economic maintenance of the system. The mechanism of the unloading manipulator is devised to improve the sensibility for the movement of the patients such as direction and velocity. For the unloading force control, fuzzy control algorithm is adopted to reduce the partial body weight and suppress the unwanted fluctuation of the body weight load to the weak legs due to the unnatural working of the patients with walking disabilities. The effectiveness of the force control is experimentally demonstrated.

• 대한인간공학회지
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• 제35권4호
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• pp.263-275
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• 2016

Objective: This paper introduces the regulatory oversight approaches and issues to consider in the course of safety culture oversight model development in the nuclear field. Common understanding on regulatory oversight and present practices of international communities are briefly reviewed. The nuclear safety culture oversight model of Korea is explained focusing on the development of safety culture definition and components, and their basic meanings. Oversight components are identified to represent the multiple human and organizational elements which can affect and reinforce elements of defense in depth system for nuclear safety. Result of validation study on safety culture components is briefly introduced too. Finally, the results of the application of the model are presented to show its effectiveness and feasibility. Background: The oversight of nuclear licensee's safety culture has been an important regulatory issue in the international community of nuclear safety regulation. Concurrent with the significant events that started to occur in the early 2000s and that had implications about safety culture of the operating organizations, it has been natural for regulators to pay attention to appropriate methods and even philosophy for intervening the licensee's safety culture. Although safety culture has been emphasized for last 30 years as a prerequisite to ensure high level of nuclear safety, it has not been of regulatory scope and has a unique dilemma between external oversight and the voluntary nature of culture. Safety culture oversight is a new regulatory challenge that needs to be approached taking into consideration of the uncontrollable aspects of cultural changes and the impacts on licensee's safety culture. Although researchers and industrial practitioners still struggle with measuring, evaluating, managing and changing safety culture, it was recognized that efforts to observe and influence licensees' safety culture should not be delayed. Method: Safety culture components which regulatory oversight will have to focus on are developed by benchmarking the concept of physical barriers and introducing the defense in depth philosophy into organizational system. Therefore, this paper begins with review of international regulatory oversight approaches and issues associated with the regulatory oversight of safety culture, followed by the development of oversight model. The validity of the model was verified by statistical analysis with the survey result obtained from survey administration to NPP employees in Korea. The developed safety culture oversight model and components were used in the "safety culture inspection" activities of the Korean regulatory body. Results: The developed safety culture model was confirmed to be valid in terms of content, construct and criterion validity. And the actual applicability in the nuclear operating organization was verified after series of pilot "safety culture inspection" activities. Conclusion: The application of the nuclear safety culture oversight model to operating organization of NPPs showed promising results for regulatory tools required for the organizations to improve their safety culture. Application: The developed oversight model and components might be used in the inspection activities and regulatory oversight of NPP operating organization's safety culture.

• 대한기계학회논문집A
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• 제24권9호
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• pp.2274-2282
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• 2000

An MR(Magneto-Rheological) fluid damper is designed and applied to the semi-active suspension system of a 1/4 car model. The damping constant of the MR damper changes according to input current and the time delay of the damper is included in the system dynamics. The passive method, LQ control and Frequency shaped LQ control are compared in experiments. The advantage of the proposed frequency shaped LQ control is that the ride comfort improves in frequency range from 4 to 8Hz where human body is most sensitive and the driving safety improves around the resonance frequency of unsprung mass, 11Hz. The experiments using a 1/4 car model show the effectiveness of the algorithm.

• 한국지역사회생활과학회지
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• 제18권1호
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• pp.87-95
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• 2007

This study was to determine the effect of cooling parts of the limbs without harm to health. The results provide basic data for the development of clothing which could increase work efficiency and reduce body strain in hot environments. Five male adults took part in the study, conducted in a climate chamber with an ambient temperature of $37^{\circ}C$ and a relative humidity of 50%. The limbs were divided into six areas to be cooled: upper arm, forearm, thigh, calf, hand, and foot. According to preceding studies, permissible cooling safety limits of skin temperature for each part of the body for one-hour were $20^{\circ}C$ on the upper arm, forearm, thigh, and calf, and $23^{\circ}C$ on the hand and foot. For this reason, cooling the skin of each region was carried out at the above mentioned temperatures. In conclusion, cooling the hand and foot reduced perspiration, rectal temperature and heart rate. Therefore, the heat stress of workers exposed to hot environments would be reduced by decreased subjective sensations of heat and increased comfort. The effectiveness of cooling was better on the arm than on the leg.

• Korean Journal of Acupuncture
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• 제20권3호
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• pp.35-47
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• 2003

Objective : The purpose of this study was to investigate the significance of the Oriental medical treatment using He-Ne laser with low energy intravascular Laser Irradiation of Blood(ILIB) through the superficial venules. Methods : The investigation of details connected with the superficial venules in the literature is performed. The investigation of details connected with the pricking blood techniques through the superficial venules in the literature is performed. The classification of the pricking blood techniques through the superficial venules by the blood-letting puncture methods in the literature is performed. The arrangement of domestic clinical treatises on the effectiveness of medical treatment using He-Ne laser with low energy ILIB through the superficial venules is performed. The consideration on the methodology for the improvement of the clinical effectiveness of He-Ne laser with low energy ILIB through superficial venules is performed. Results and Conclusions : The superficial venules are small arteries, veins and capillaries in the superficial region of the human body. In the pricking blood techniques, there are the blood-letting puncture using the implement of acupuncture to the Jing points, Extra points and superficial blood vessels and the acupuncture using the Hirudo. The methods of the blood-letting puncture are classified into the venous blood-letting puncture, the pricking , the picking out white fiber-like substances from the subcutaneous tissue, the cluster needling, the scattered needling, the blood-letting puncture of the tready collateral branch of the large channel and the blood-letting puncture of skin. The He-Ne laser with low energy ILIB through the superficial venules belongs to the Oriental medical treatment as the method of the blood-letting puncture in the vein of cubital fossa. The He-Ne laser with low energy ILIB has an effect on hyperfibrinogenemia, hyperlipidemia, speech and motor dysfunction in the case of cerebral infarction, headache, dizziness, pain and numbness. It is considered that fundamental research on the biological change of the human body, the experimental animal and the unicellular animal, and research on the effectiveness and the safety, and the development of He-Ne laser with low energy ILIB of an effective wavelength range are necessary.

• 동의생리병리학회지
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• 제30권6호
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• pp.385-396
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• 2016

It is a fact that the existing pharmacological research method is difficult to explain the effect and mechanism of action of herbal formula of Korean medicine. We are now very pleased with the development of modern science and the development of a methodology for studying herbal formula characterized by network targets and multi-component therapeutics over the human body. In this review, systems pharmacology or network pharmacology is demonstrated how these are applied to explain the effectiveness of herbal medicine. The post-genomic era provides a unique opportunity for the two fields to understand and benefit from each other. In particular, recent research trends, research methodology, useful databases and results of research on herbal formula are introduced. China already has a policy of scientific development of traditional chinese medicine (TCM) and the development of Chinese medicine industry with a focus on herbal formula research at national level, and in Korea, it is urgent to support and nurture the methodology appropriate to the characteristics of the herbal formula in order to study the safety and efficacy of Korean medicine.