• Journal of the Korea Convergence Society
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• v.9 no.5
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• pp.239-246
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• 2018

In this study, we analyzed the balance of the both legs and the kinematic analysis of the upper limb segments and joints during archery shooting and compared the differences according to the scores. 9 K-university elite archery athletes participated. Each archer was asked to shoot 3-shots and 5-ends on a 122 cm target at a distance of 70 m. Seven infrared cameras (Qualisys, sweden) and two force plates (Kistler, Switerland) were used to calculate the upper limb segments and joint movements and the center of pressure (COP). When the archers shot 8 points, range of motion of elbow joint angle on drawing-arm and mediolateral COP range of motion on the left foot were larger than when 9-10 points were shot (p<.05). In order to maintain a high score in the archery game, constant balance is required, and the balance of the left foot supporting the bow during the shooting is an important factor. In addition, minimizing elbow joint movement of the drawing-arm supporting the bow will help stabilized shooting.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.1
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• pp.91-95
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• 2009

We investigated the characteristics of a capacitive nano-accelerometer based on carbon nanotube by means of classical molecular dynamics simulations. The position of the telescoping nanotube was controlled by the externally applied force and the feedback sensing was achieved from the capacitance change. Considering energy dissipation, the oscillation features of the nano-accelerometers were similar, regardless of their initial displacements. The capacitance variations, which were almost linearly proportional to the applied acceleration, were monitored within an error tolerance.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1995.09a
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• pp.415-419
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• 1995

소위 '무한경쟁'과 '경영혁명'이라는 시대조류에 따라 모든 기업들이 너나 할 것 없이 조직혁신의 대열에 합류하면서 '인사파경', '신인사제도', '학습조직'등 다양한 개념과 제도가 기업현장에 등장하고 있다. 이와 더불어 '구성원의 욕 구'와 '조직의 생존논리' 사이에 형성되어 있던 힘의 균형이 점차 조직의 생 존논리 쪽으로 기울어지면서, 그간 기업의 발전을 위해 전력해 왔던 중간관 리자들이 심리적 압박감과 함께 점차 여과되어지는 추세에 있다. 본 논문은 이러한 현상에 주목하면서 'K'은행의 관리자를 대상으로 한 설문조사를 토대 로 바람직한 중고령자 대책의 방향을 살펴보려는데 그 목적을 두고 있다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.05a
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• pp.289-289
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• 2004

보행 시작(Gait Initiation)은 정적 기립상태에서 출발하여 일정한 보행주기가 반복되기 전까지의 과정을 말한다. 이러한 보행의 시작은 아주 짧은 시간에 무의식적으로 이루어지는 움직이지만, 신경계의 조절 근육의 작용 및 생체역학적인 힘의 복합적인 통합에 의해 이루어진다. 노인의 낙상은 보행시작의 과정에 있어서 주로 신체노화와 질병으로 인한 균형 조절능력의 감소를 가장 큰 요인으로 보고 있다. 하지만 지금까지는 주로 운동역학과 동적 근전도에 대한 연구가 주류를 이루었다.(중략)

• The Journal of Society for e-Business Studies
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• v.10 no.4
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• pp.35-52
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• 2005

Collaboration among companies is being emphasized, as e-business is expanding its domain. Generally the collaboration it discussed on the basis of business and technology. In reality, however, collaboration is determined by competitive power of corporation. From this point of view, this study examines a type of collaboration which is effective when the parties concerned have equal footings.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.987-988
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• 2007

리니어 모터는 일반적으로 회전하는 모터와 같이 여러 형상의 극간에서 발생되는 힘의 균형에 의해서 구동되는 것이 일반적이다. 특히 하나의 극간에서 미소 구동하는 리니어 모터는 구동력과 실제 이동하는 위치 사이에서 댐핑이나 무게와 함 사이에서 발생하는 가속력의 차이에 의해서 주어진 힘의 파형과 움직이는 위치의 괴적이 만들어가는 이동자의 위치 사이에는 다소 시간 처짐이 발생하게 된다. 본 논문에서는 구동력과 실제 이동하는 위치 사이의 시간 처짐의 원인으로 알려져 있는 여러 요소중 주파수와 입력전류를 변화시키고 이에 따른 선형전동기의 power factor의 변화와 공진주파수의 관계 등 선형전동기의 구동력 변화를 알아보았다. IT 기기 냉각용으로 제작한 횡자속 선형전동기에서 공진구동용 스프링을 장착하고 공진주파수 부근과 power factor가 가장 큰 값을 가지는 부근의 주파수를 선정하고 입력전류에 따른 전류, 전압, 위치, 역율을 알아보았다.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.2
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• pp.379-386
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• 2023

When patients suffer from finger injuries, their finger joints can become stiff and inflexible due to decreased ability to exercise the finger tendons. This can lead to a loss of strength and difficulty using their hands. To address this, it is important to provide patients with consistent rehabilitation treatment that can help restore finger flexibility and strength simultaneously. In this study, we propose wearable gloves that use FSRs (force sensitive resistors) for finger strength training. The glove is designed to be adjustable using rubber bands and a custom PCB is designed for signal acquisition. For the evaluation of finger strength training, the result was analyzed in four cases. We suggest a vector that represents the center of five finger forces, and the result shows that the vector can indicate the level of force balance.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.10 no.2
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• pp.169-177
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• 1999

Human being can be defined in several ways. These are biological, psychological, social and religious, ethical and philosophical aspects. The first two viewpoints refers to the intrapersonal aspects and the last two viewpoints deals with the interpersonal aspects. There have been numerous thoeries and hypotheses to explain the human behavior and psychopathology, but the author does not find any theory or hypothesis to integrate the biological and psychological viewpoints. In addition, The author does not find any theory to integrate the intrapersonal and interpersonal aspects in interpersonal relationships. Thus, the author proposed one model to explain the human behavior. In proposing this theory, the author has the following hypotheses：1) All human being can not exist by oneself. 2) The ultimate goal of all human being is to achieve 'Survival'. 3) There are four kinds of survivals and they are biological, psychological, social and religious, ethical and philosophical survivals. 4) Power and control are two prerequisites for survival and there are four kinds of power and control. 5) The four elements of power and control are biological, psychological, internal and external ones. 6) The conflict between buman being can also be explained in terms of power, control and survival. 7) Normality and abnormality of human behavior can be explained in terms of the harmony and balance among the powers and controls.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.26 no.6
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• pp.580-593
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• 1993

The Tsushima Current has been known to branch out from the Kuroshio west of Kyushu and to flow north to the Korea Strait. Then, it has to flow across the isobaths and so needs some driving forces. As the forces, sea level difference between the Korea and Tsugaru Straits, Reynolds stress west of Kyushu and density differences have been suggested, In this paper, their roles have been numerically studied in the barotropic case. Model results show that the Tsushima Current is possible without any above force. The flows just follow isobaths over the East China Sea. They seem to be driven by their own dynamics without any external force. The mechanism is just like outflows from a gap. Model results also show that the flows in this area could be significantly affected by the external forces such as Reynolds Stress. Then the dynamics and flows in real ocean might be complicated. However, the barotropic study tells us that the Tsuahima Currents is basically driven by geostrophic adjustment.

• The Journal of the Korea Contents Association
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• v.14 no.9
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• pp.120-130
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• 2014

The purpose of this study was to evaluate the effects of line dance activity on the balance factors during static standing to reveal the exercise intervention for fall prevention. A 15-week line dance programme was applied to 16 elderly females who aged more than 65 years in the community. Balance ability during static standing was evaluated by the range of center of pressure(cop), the velocity of cop, and sway area that calculated on the basis of ground reaction force data, forces, and moments. The range and velocity of cop in the anterio-posterior were significantly reduced after line dance(p<.01, p<.05, respectively), but change in those of cop in the medio-lateral was not found. It was demonstrated that 16-week line dance activities allow more effective in anterio-posterior stability and sway area of static standing. It was suggested that the effect of fall prevention exercise should be studied more associate with fall from vestibular and sensory system as future study.