• 수산해양교육연구
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• 제26권6호
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• pp.1417-1424
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• 2014

This study is supposed to offer data related to whether circulation training(aerobic and anaerobic exercise) focused on overweight women has positive effects on reducing fat and increasing muscles for middle-aged women. This study aims to investigate how the circulation training effect overweight middle-aged women's female hormone, blood lipid, which offers basic data of exercise program to keep the overweight middle-aged women healthy. Participants for the study are 30 to 45-year-women who were willing to take part in a M Sports Diet Program in G gu, B metropolitan city, did not have any disease. They were 29 overweight women and showed more than 30% of body fat percentage. Female hormone, blood lipid were measured twice before and in 12 weeks after exercise. The results obtained from this study are given as in the following. Although estrogen has significantly increased after the circulation training, there was no meaningful difference from the control group. After 12-weeks-circulation training, even though there were no meaningful differences. before the training, the circulation training group was significantly higher than the control group. Although TC has significantly decreased after the circulation training, there was no meaningful difference from the control group. the circulation training group was significantly lower than the control group. Even though TG was no significantly decreased after the circulation training, there was no significantly difference from the control group. the circulation training group was significantly lower than the control group. Even though HDL-C has significantly increased after the circulation training, there was no meaningful difference from the control group. the circulation training group was significantly higher than the control group. Even though LDL-C has significantly decreased after the circulation training, there was no significantly difference from the control group. the circulation training group was significantly lower than the control group.

• 제어로봇시스템학회논문지
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• 제10권12호
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• pp.1181-1188
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• 2004

This paper reviews the main aspects of cardiovascular system dynamics with emphasis on modeling hemodynamic characteristics using a lumped parameter approach. Methodological and physiological aspects of the circulation dynamics are summarized with the help of existing mathematical models: The main characteristics of the hemodynamic elements, such as the heart and arterial and venous systems, are first described. Lumped models of micro-circulation and pulmonary circulation are introduced. We also discuss the feedback control of cardiovascular system. The control pathways that participate in feedback mechanisms (baroreceptors and cardiopulmonary receptors) are described to explain the interaction between hemodynamics and autonomic nerve control in the circulation. Based on a set-point model, the computational aspects of reflex control are explained. In final chapter we present the present research trend in this field and discuss the future studies of cardiovascular system modeling.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제25권1호
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• pp.41-49
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• 2019

Purpose: After Mers breakout in 2015, major hospital in Korea have been renovated the emergency department to make a separate infection control zone for high-risk patient with potential infection and to improve a triage area and an entrance area for efficient patient evaluation. However, there are no specific design standards to reinforce infection control for patients and staffs safety. Therefore, it is important to establish of initial design factors in the triage and entrance area as a guideline. Methods: 5 cases which had been recently renovated are selected to analyze patient circulation and spatial composition in a triage area and an entrance area. The partial floor plans of each case are represented as bubble diagrams to help understanding of different patient circulation flows. Based on this analysis, significant design factors which should be considered in planning stage for infection control have been extracted. Results: 13 design factors are established. Using these design factors, patient circulation diagram is generated to provide an optimized suggestion for efficient infection control. Implications: This suggestion provides basic databases to start to establish design guideline in the triage area and the entrance area to minimize infection spreading in the emergency department.

• 한국해양공학회지
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• 제15권3호
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• pp.35-42
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• 2001

The characteristics of tidal circulation with the flow-control structures using the three-dimensional numerical model (POM, Princeton Ocean Model) of Chinhae Bay, Korea were investigated. To confirm th efficiencies of flow-control structures, the training wall and submerged training wall were constructed at the mouth and narrow channel in Chinhae Bay. On the basis of the present investigation, the tidal circulation induced by the construction of flow-control structures could enhance the water exchange improvement appropriately. And, th training wall at the central is more dominated than the other structures for the efficient of water exchange. The sites and types of structure and flow patterns seem to be very sensitive in tidal simulation and changes in flow fields.

• 설비공학논문집
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• 제25권8호
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• pp.443-449
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• 2013

The purpose of this study is to propose an enhanced variable-speed control method of ground-water circulation pumps using inlet and outlet ground-water temperature difference and analyze its effect for the ground source multi-heat pump system installed in a single-family house. As a result, it has shown to significantly reduce the electricity use of ground-water circulation pump and improve overall system Coefficient of Performance (COP) due to the proposed variable-speed control under partial load conditions after oversized and inefficient single-speed pump retrofit.

• 조명전기설비학회논문지
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• 제28권2호
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• pp.60-69
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• 2014

This paper proposed the circulation current control scheme in the single phase inverter system. The load experiment of the power conversion system including the UPS usually uses the passive components such as resistors and inductors. Therefore, the energy consumption is serious problem. In addition, the system is out of order when it is installed in the local area, and the load experiment can not perform adequately after troubleshooting, because there is no the load equipment, and the power capacity is not enough in the local area. The paper does the research on the circulation current control scheme, it does not need the load equipment, and the load current can reuse as the input current of the equipment. Instead of the conventional method the voltage-voltage and voltage-current control scheme introduced the parallel converter concept is newly proposed, and the validity of the proposed control scheme is investigated by both simulation and experimental results.

• 대한간호학회지
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• 제39권5호
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• pp.662-672
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• 2009

Purpose: This study was to examine the effects of self-foot reflexology on stress, fatigue and blood circulation in premenopausal middle-aged women. Methods: A quasi-experimental nonequivalent control group, pretest-posttest design was used. Participants were 59 premenopausal, middle-aged women in their 40s and 60s living in G city: 30 in the experiment group and 29 in the control group. Data were collected from May to August 2008. Self-foot reflexology was performed three times a week for 6 weeks for 40 min at each session. Results: The results showed that self-foot reflexology was effective in reducing perceived stress and fatigue and helped blood circulation in premenopausal middle-aged women. Conclusion: Self-foot reflexology may be an effective nursing intervention in reducing perceived stress and fatigue and in improving blood circulation.

• 한국융합학회논문지
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• 제13권1호
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• pp.261-268
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• 2022

코로나 19의 확산 방지를 위하여 다중이용시설의 입구를 통제하는 것은 일반적인 상황이 되었다. 이 연구는 현재의 코로나 19와 같은 재난으로 인하여 건축물내 동선체계의 변화가 발생하였을 때 효과적인 피난계획을 수립하기 위한 연구이다. 만일 다중이용시설의 분석을 통하여 건축물의 동선체계의 변화에 대한 사항을 미리 고려하여 건축계획을 한다면 재난의 발생 시 확산을 막을 수 있을 것으로 기대한다. 본 연구는 인간의 행동패턴의 특성과 다중이용건축물의 설계단계에서 고려하여야 할 사항을 분석하여 재난의 발생시에 능동적으로 대처가능한 임시적인 동선체계의 변경에 유효한 피난계획의 수립에 대해서 연구하고자 한다.

• 대한조선학회논문집
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• 제40권5호
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• pp.10-16
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• 2003

To investigate the jet effect on circulation control, a segment of model was prepared and inserted horizontally across the test section of the cavitation tunnel. The hydrodynamic forces acting on the model were measured under the 2 dimensional flow behavior. Circulation flow control requires higher flow rate of water jet than boundary layer control does. Jet injection is effective in increasing lift coefficient and the increments reach to 160% in a certain combination of parameters such as an angle of attack, jet flow rate and flap angle. The blown water jet not only reduces form drag but also thrust effect, which is sometimes greater than the form drag in specific conditions.

• 한국해양공학회지
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• 제14권3호
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• pp.20-28
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• 2000

Using the hydraulic and numerical model of semi-enclosed bay (Chinhae Bay), the efficiencies of flow-control structures on the seawater-circulation in the inner bay were investigated. Expecially, this study was confirmed the effectiveness of the flow-control structures at the mouth and narrow channel of Chinhae Bay through the experiments. The system of flow-control structures could enhance the water exchange improvement appropriately. The results of this study can be used as the long-term and integrated environmental impact assessment model in the inner bay.