• 대한기계학회논문집A
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• 제30권3호
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• pp.241-248
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• 2006

Shoe cushioning systems are important to prevent body injuries. This study developed and evaluated a cushioning system to reduce impact force on the heel. The cushioning system suggested consist of a polyurethane pocket, which contains water and porous grains of open cell to dissipate the energy effectively. Load-displacement curves fer the shoe cushioning system were obtained from an instrumented testing machine and the results were compared with various pockets with air, water or grains. Mechanical testings showed that the pocket with 5g porous grain was the best for the cushioning system. This system can be applied to the design of various kind of sport shoes.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 2002년도 춘계학술대회 논문집
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• pp.30-33
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• 2002

There are several methods to implement the logical machine reasoning such as a frame theory and a production system of artificial intelligence. And these algorithms can explain the obtained result through the inference processes. However, emotional (KANSEI) patterns are not so easily implement. One of reason is that some emotional expression is the result of process from unconscious level to conscious level, and not easily identified the original unconscious causes. Therefore, a function of KANSEI database needs to structuralize unconscious level. Our approach is to develop the computerized counseling support system which can structuralize the unconscious brain functions from the view point of the psychology with focusing physiological and emotional responses. Especially, development of the algorithm that can form the network from unconscious to conscious using the image recollection is the application of the structured association technique (SAT). The developed system was implemented on the Web using CGI and emotional network database.

• 정보통신설비학회논문지
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• 제2권3호
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• pp.24-35
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• 2003

With the arrival of 3rd generation cellular networks it is expected that a lot of new cellular services will be available to the mobile users like video calling, location based services etc. Similarly MBMS is one such service which is targeted for 3G mobile users for viewing talk shows, live sport events etc. One shall view this service like a small portable T.V being carried by the mobile user. The user watches the programs of his liking by joining if he wishes. In this paper we focus on the possible UTRAN architectures to provide MBMS service within UMIS networks. The paper primarily focuses on the requirement aspect, notification aspect and the mobility aspect. The paper lists many options for notifications and elaborates on them in terms of pros and cons. In the end the paper conclude with an UTRAN architecture for MBMS service which meets the requirements of this service as well as makes minimum changes to the existing UTRAN architecture while attempting to save terminal power for this service.

• Molecules and Cells
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• 제23권3호
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• pp.272-279
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• 2007

The maintenance of normal blood glucose levels at rest and during exercise is critical. The maintenance of blood glucose homeostasis depends on the coordination and integration of several physiological systems, including the sympathetic nervous system and the endocrine system. During prolonged exercise increased demand for glucose by contracting muscle causes to increase glucose uptake to working skeletal muscle. Increase in glucose uptake by working skeletal muscle during prolonged exercise is due to an increase in the translocation of insulin and contraction sensitive glucose transporter-4 (GLUT4) proteins to the plasma membrane. However, normal blood glucose level can be maintained by the augmentation of glucose production and release through the stimulation of liver glycogen breakdown, and the stimulation of the synthesis of glucose from other substances, and by the mobilization of other fuels that may serve as alternatives. Both feedback and feedforward mechanisms allow glycemia to be controlled during exercise. This review focuses on factors that control blood glucose homeostasis during prolonged exercise.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.73.1-73
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• 2001

To utilize the uranium resources contained in the spent nuclear fuel generated from the nuclear power plants, the remote handling and dismantling technology is required. The dismantling process of the sport fuel is the most common process involved in the spent fuel recycling, the rod consolidation and the disposal processes. Since the machine used in the dismantling process are located and operated in isolated space, so called a hot cell, the reliability of machines is very important. To enhance the reliability of the process, in this research, the graphical monitoring system is developed for the fuel dismantling process. The graphic model of each machine is composed of many parts and every parts of the graphic model are given their own kinematics. Using the kinematics and simulating the graphic model in the virtual environment, the validity of the conceptual design can be verified before ...

• 생명과학회지
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• 제17권8호통권88호
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• pp.1166-1171
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• 2007

면역학이 발점함에 따라서 인간의 면역체계에 영향을 미치는 많은 요인들에 대한 수많은 연구들이 진행되고 있다. 연령, 영야상태, 스트레스, 질병, 비만, 고지혈증, 장애 등 무수히 많은 변인들이 면역방응에 직접적인 영향을 주고 있으나 운동 또한 상당한 영향력이 있어, 운동시 나타나는 면역 반응에 대하여 고찰하게 되었다. 규칙적인 운동은 초기면역과 그 이후의 적응면역을 증진시키며 특히 적응면역 중 세포 매개 면역반응과 항체매개 면역반응에 영향을 미치는 것으로 알려져 있다. 하지만 이러한 운동도 몸의 상태가 건강하거나 몸에 맞는 운동을 규칙적으로 실시해야 효과적이며, 운동의 경험이 없거나 스트레스나 질병이 있는 상태에서의 운 동은 오히려 신체에 부담을 주어 면역력을 악화하는 결과를 초래하게 된다. 또한 일회성의 운동도 체력수준에 맞게 수행되어야 하는데, 장시간 너무 무리하게 수행하면 에너지 고갈과 함께 면역력의 감소를 초래하여 상기도 감염과 같은 질환을 야기하게 된다. 따라서 무리한 운동 후 'open window' 시기에 적절한 이온음료의 섭취, 영양분 공급 및 휴식은 건강 관리에 필수적이라 할 수 있다. 또한 수행한 운동이 규칙적이라 할지라도 운동은 운동 환경이나 선천적인 요소에 따라 운동 유발성 천식을 포함하는 운동 유발성 알레르기 질환을 야기하는 환경을 조성할 수 있으므로 본론에서 제시한 지식을 바탕으로 마라톤과 같은 장기간 운동 시 특히 주의해야 할 것으로 여겨진다.

• 대한기계학회논문집A
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• 제36권6호
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• pp.673-679
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• 2012

차량의 롤오버는 심각한 사고중의 하나로 SUV 에 있어서 더욱 위험하나 롤오버 방지시스템을 통하여 발생을 최소화 시킬 수 있다. 하지만 이러한 방지 시스템의 성능은 승객 수나 다른 하중 조건에 따라 변하는 차의 질량이나 무게중심 같은 차량 관성 파라미터에 매우 민감하다. 본 논문에서는 이러한 문제점을 개선하기 위하여 종 방향, 횡 방향, 수직 방향 동역학을 기반으로 한 세 가지 질량 추정 알고리즘을 개발하고 이 세 가지 알고리즘들을 통합하여 임의의 주행 상황에서 실시간 연산을 통해 차량의 질량을 추정할 수 있는 통합 차량 질량 추정 방법을 제안하였다. 또한 실시간 시뮬레이션과 실험을 통하여 이 방법의 성능을 검증하였다.

• 지능정보연구
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• 제9권1호
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• pp.251-267
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• 2003

객체지향 데이터 베이스에서는 지능 정보시스템에서 요구하는 것을 만족하기 위하여 보다 지능적인 질의 처리 기법이 필요하다. 본 논문에서는 추론적 기법을 사용하여, 객체지향 데이터베이스에서의 지능적인 질의 처리하는 방법에 대하여 논의한다. 논문에서 제시하는 방법을 사용하여, 객체지향 데이터베이스에서 주어진 질의에 대한 답을 추상적으로 표현하는 지능적인 답을 얻을 수 있다. 본 논문에서 제안하는 지능적인 질의 처리 방법은 규칙 표현, 규칙 재편성, 전 분석, 분석의 네 단계로 구성된다. 규칙 표현 단계에서는 객체지향 데이터베이스 스키마를 사용하여 추론 규칙을 생성한다. 규칙 재편성 단계에서는 규칙에서 순환을 제거한다. 전 분석 단계에서는 유일한 내포적 문자를 얻기 위하여 규칙변환이 이루어진다. 분석 단계에서는 SLD-분석을 사용하여 내포적 답을 구한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권11호
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• pp.5512-5526
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• 2019

In sports video games, especially ball games, motion capture techniques are used to reproduce the ball-driven performances. The amount of motion data needed to create different situations in which athletes exchange balls is bound to increase exponentially with resolution. This paper proposes how avatars in virtual worlds can not only imitate professional athletes in ball games, but also create and edit their actions effectively. First, various ball-handling movements are recorded using motion sensors. We do not really have to control an actual ball; imitating the motions is enough. Next, motion is created by specifying what to pass the ball through, and then making motion to handle the ball in front of the motion sensor. The ball's occupant then passes the ball to the user-specified target through a motion that imitates the user's, and the process is repeated. The method proposed can be used as a convenient user interface for motion based games for players who handle balls.

• Journal of Information Processing Systems
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• 제12권4호
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• pp.711-723
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• 2016

With the rapid development of both ubiquitous computing and the mobile internet, big data technology is gradually penetrating into various applications, such as smart traffic, smart city, and smart medical. In particular, smart medical, which is one core part of a smart city, is changing the medical structure. Specifically, it is improving treatment planning for various diseases. Since multiple treatment plans generated from smart medical have their own unique treatment costs, pollution effects, side-effects for patients, and so on, determining a sustainable strategy for treatment planning is becoming very critical in smart medical. From the sustainable point of view, this paper first presents a three-dimensional evaluation model for representing the raw medical data and then proposes a sustainable strategy for treatment planning based on the representation model. Finally, a case study on treatment planning for the group of "computer autism" patients is then presented for demonstrating the feasibility and usability of the proposed strategy.