• 한국게임학회 논문지
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• 제7권4호
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• pp.117-123
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• 2007

본 논문은 컴퓨터 바둑에서 돌의 영향력(Stone Influence)과 영향력점(Influence Point) 그리고 영향력 영역(Influence Area)을 제안한다. 돌의 영향력은 놓인 돌과 빈 정점사이의 거리에 따라 정의하며, 영향력점은 돌의 영향력에 대해 임계치를 이용하여 정의한다. 형세평가를 위한 요소로 영향력 영역을 영향력점 덩어리와 코어를 이용하여 정의한다. 저자는 정석 자료를 이용한 실험을 통해서 영향력점의 임계치를 구하였으며, 영향력 영역이 바둑 게임에서 세력으로 성공적으로 적용 가능하였습니다.

• 대한한의학회지
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• 제18권2호
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• pp.199-213
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• 1997

A comparative study of influence by area between acupuncture points on hand of original acupuncture system with those of hand acupuncture system was resulted as followes 1. The influence of acupuncture points on original acupuncture system was different from those on hand acupuncture system by meridian system even though on same area or point but was similar by meridian coordination even though on different area or point. 2. The influence of acupuncture points on hand acupuncture system was almost added by those of coordinated original acupuncture system point on those of hand acupuncture system point. 3. The influence of non coordinated hand acupuncture points with several original acupuncture points was according to those of up or down point on same meridian. 4. Tung;s acupuncture system had no corelationship with other two acupuncture systems, where it has no holistic system on original princeple and Extra-points had also no corelationship, where it has no meridian system.

• 대한약침학회지
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• 제4권1호
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• pp.49-53
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• 2001

This experiment has investigated the influence of Yamen (Du. 15) point injection on learning and memory dysfunction caused by cerebral ischemia and reprofusion in bilateral cervical general artery combined with bleeding on mouse tail to mimic vascular dementia in human beings. By dividing 40 mice into 4 groups (group1false operation group, group2model group, group3point injection with Cerebrolysin group4point injection with saline.) According to random dividing principles, we observed the influence of Yamen(Du. 15) point injection on the time of swimming the whole course used by model mice which had received treatment for different days in different groups, and the influence of those mice on wrong times they entered blind end. The result showed that point injection with Cerebrolysin and saline could improve learning and memory dysfunction of the mice caused by cerebral ischemia.

• 한국환경과학회지
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• 제17권10호
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• pp.1075-1080
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• 2008

The influence of the point source inflow on the water quality variation in the downstream of Hyeongsan River was investigated. As the results of seasonal variation, the pollutant concentrations of dry season were 1.5-4 times higher than those of wet season. The increase rate of $BOD_5$, $COD_{Mn}$, T-N, T-P due to point source were ranged to $8.1\sim42.6%$, $7.3\sim41.9%$ and $17.1\sim207%$ as the inflow of P1, P2 and P3, respectively. After P1, P2 and P3 inflow, the accumulated increase rate were 64.3%, 32.6%, 93.1% and 258.9% in $BOD_5$, $COD_{Mn}$, T-N, T-P, respectively. It was found that the influence of point source inflow on the water quality in the downstream of Hyeongsan River is severe.

• 한국기계가공학회지
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• 제6권3호
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• pp.71-76
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• 2007

The fatalities of pedestrian account for about 40.0% of all fatalities in Korea 2005. Vehicle-Pedestrian accident generates trajectory of pedestrian. In pedestrian involved accident, the most important data to inspect accident is throw distance of pedestrian. The throw distance of pedestrian can be influenced by many variables. The variables that influence trajectory of pedestrian can be classified into vehicular factors, pedestrian factors, and road factors. Vehicular factors are the frontal shape of vehicle, impact speed of vehicle, the offset of impact point. Many studies have been done about the relation between impact speed and throw distance of pedestrian. But the influence of the offset of impact point was neglected. The influence of the offset of impact point was analyzed by Working Model, and the trajectory of pedestrian, dynamic characteristics of multi-body were analyzed by PC-CRASH, a kinetic analysis program for a traffic accident. Based on the results, the increase of offset reduced the throw distance of pedestrian. However box type vehicle just like bus, the offset of impact point did not influence the throw distance of pedestrian considerably.

• Spatial Information Research
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• 제17권4호
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• pp.445-454
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• 2009

이 연구는 센서 네트워크를 통한 단순한 정보 전달을 넘어서서 유비쿼터스 컴퓨팅 환경에서의 진정한 상황인식 위치 기반 서비스를 구현하기 위한 방법에 대한 제안을 하고자 한다. 그러기 위해, 이 글에서는 점 개체의 영향력 범위에 대한 새로운 형식의 접근이 소개된다. 여기서, 영향력 범위란 점 개체 주변에 점 개체로 인해 어떤 현상이나 사건이 발생한 가능성이 있는 구역을 설정한 것을 뜻한다. 점 개체는 이러한 영향력 범위설정을 통해 공간적으로 확장 될 수 있다. 이러한 점 개체를 Spatially Extended Point (SEP) 개체라 한다.SEP와 그 주변 환경 사이의 위상적 관계의 점진적 변화 조합은 그 개체의 정성적 공간 행위를 표현하는데 이용될 수 있다. 이렇게 표현된 정성적 공간 행위들은 좀더 구체적이고 적합한 정보를 사용자에게 제공하는데 필요한 기준으로 쓰일 수 있다.

• Journal of Power Electronics
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• 제15권1호
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• pp.106-115
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• 2015

This paper proposes a novel direct power control (DPC) strategy for neutral-point-clamped (NPC) three-level rectifiers, to directly control the active power, the reactive power and the neutral point potential of the rectifiers by referring to three pre-calculated vector influence tables and minimizing an objective function. In the three vector influence tables, the influences of different voltage vectors on the active power, the reactive power and the neutral-point potential are shown explicitly. A conceptual description and control algorithm of the proposed controller are presented in this paper. Then, numerical simulations and experiments are carried out to validate the proposed method. Both the simulation and experimental results show that good performances during both the steady-state and transient operating conditions are achieved. As a result, the proposed strategy has been proven to be effective for NPC three-level rectifiers.

• Structural Engineering and Mechanics
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• 제24권5호
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• pp.585-599
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• 2006

This paper describes a series of laboratory tests carried out to evaluate the influence of bed joint orientation on interlocking grouted stabilised mud-flyash brick masonry under uniaxial cyclic compressive loading. Five cases of loading at $0^{\circ}$, $22.5^{\circ}$, $45^{\circ}$, $67.5^{\circ}$ and $90^{\circ}$ with the bed joints were considered. The brick units and masonry system developed by Prof. S.N. Sinha were used in present investigation. Eighteen specimens of size $500mm{\times}100mm{\times}700mm$ and twenty seven specimens of size $500mm{\times}100mm{\times}500mm$ were tested. The envelope stress-strain curve, common point curve and stability point curve were established for all five cases of loading with respect to bed joints. A general analytical expression is proposed for these curves which fit reasonably well with the experimental data. Also, the stability point curve has been used to define the permissible stress level in the brick masonry.

• Journal of Advanced Marine Engineering and Technology
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• 제2권1호
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• pp.3-14
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• 1978

The authors have developed a calculating method of propeller shaft alignment by the finite element method. The propeller shaft is divided into finite elements which can be treated as uniform section bars. For each element, the nodal point equation is derived from the stiffness matrix, the external force vector and the section force vector. Then the overall nodal point equation is derived from the element nodal point equation. The deflection, offset, bending moment and shearing force of each nodal point are calculated from the overall nodal point equation by the digital computer. Reactions and deflections of supporting points of straight shaft are calculated and also the reaction influence number is derived. With the reaction influence number the optimum alignment condition that satisfies all conditions is calculated by the simplex method of linear programming. All results of calculation are compared with those of Det norske Veritas, which has developed a computor program based on the three-moment theorem of the strength of materials. The authors finite element method has shown good results and will be used effectively to design the propeller shaft alignment.

• Structural Engineering and Mechanics
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• 제70권6호
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• pp.711-722
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• 2019

Considering stress singularities at point support locations, buckling solutions for plates with arbitrary number of point supports are hard to obtain. Thus, new Hp-Cloud shape functions with Kronecker delta property (HPCK) were developed in the present paper to examine elastic buckling of point-supported thin plates in various shapes. Having the Kronecker delta property, this specific Hp-Cloud shape functions were constructed through selecting particular quantities for influence radii of nodal points as well as proposing appropriate enrichment functions. Since the given quantities for influence radii of nodal points could bring about poor quality of interpolation for plates with sharp corners, the radii were increased and the method of Lagrange multiplier was used for the purpose of applying boundary conditions. To demonstrate the capability of the new Hp-Cloud shape functions in the domain of analyzing plates in different geometry shapes, various test cases were correspondingly investigated and the obtained findings were compared with those available in the related literature. Such results concerning these new Hp-Cloud shape functions revealed a significant consistency with those reported by other researchers.