• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 ITC-CSCC -2
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• pp.794-797
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• 2002

We consider a master-slave pulse-coupled network of bifurcating integrate-and-fire circuits. The network exhibits in-phase chaotic synchronization and various periodic synchronization phenomena. In order to analyze these phenomena precisely, we derive a one-dimensional return map. Also using a simple test circuit, typical phenomena are demonstrated in the laboratory.

• 대한의용생체공학회:의공학회지
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• 제5권1호
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• pp.33-38
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• 1984

Biological rhythms are very important phenomena to generate, grow a living thing. However, the origin of rhythms are not disclosed completely until now. Eack myocardial cell has a natural rhythm of itself, and synchronization is happened when two cells are come in contact with each other. In this research, a simple synchronization model has been proposed and studied, refering to the physiological model. The changes of the synchronization rhythms in experimental results are compared with that of the model.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 ITC-CSCC -3
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• pp.2012-2015
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• 2002

Synchronization phenomena of chaos observed in a dual-structured system is presented. The system is consisting of two identical piecewise-linear systems and the simple coupling between the two systems enables the synchronization of the chaotic behavior. An application of the proposed dual-structure to a real power system for the parameter value identification is also presented.

• 한국통신학회논문지
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• 제40권11호
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• pp.2230-2237
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• 2015

본 논문에서는 자연계에 존재하는 동기화 현상에 착안하여 무선 네트워크를 위한 자율적 부하균형 기법을 제안한다. 이를 위해 본 논문에서는 무선 접속 서비스를 제공하는 셀 사이의 부하균형 문제를 자연계 동기화 현상을 이용하여 모델링 한 후 각 셀들이 이웃 셀과의 부하 차이에 따라 자율적으로 부하를 분배하기 위한 알고리즘을 설계한다. 모의실험을 통해 제안 기법을 이용하여 각 셀들이 자신의 지역적 정보만을 이용하여 자율적으로 부하 분배 여부를 결정하더라도 셀 간 부하균형을 이룰 수 있다는 것을 검증하였다.

• 대한의용생체공학회:의공학회지
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• 제3권2호
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• pp.101-104
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• 1982

Even one embryonic myocardial cell exhibits a spontaneous, periodic beating phenomena. When these cells come in contact with each other, they beat synchronously with a certain period. In this paper, the mechanism of this phenomena is investigated, and the synchronization model is presented. The physiological experimental results are compared with the simulated results of the model.

• 전자공학회논문지C
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• 제34C권2호
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• pp.19-28
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• 1997

This paper presents the design of an SSIC chip for synchronization between main and sub pictures in the multi channel TV system (MUCTS). This chip can resolve problems in MUCTS, such as passing through and vertical jolt phenomena. In addition, this chip rpvivides compatibility for normal/doulble scan, interlace/progressive and normal (4:3)/wide (16:9) systems and has high hjorizontal and vertical resolutions (340) dots and 150 lines). In each mode there are 1 channel, 3 channel, and 4 position display functions. This MUCTS chip including three A/D coverters, a D/A converter and seven line memories was fabricated with one chip by using the $0.8\mu\textrm{m}$ CMOS technology. The application areas of this MUCTS ASIC chip include the wide TV, projection TV and te next generation TV for the DBS (direct broadcast system).

• 수산해양기술연구
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• 제32권3호
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• pp.310-315
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• 1996

엔진 배기가스의 동력과 유량이 배기행정의 직전 단계에서 관찰되었다. 배기가스 양을 적당히 조정함으로써 터보 과급의 입구 압력을 증가시킬 수 있었으며 엔진의 흡기, 소기 및 배기과정에서 가스질량과 엔진의 동력, 그리고 터보과급 효과도 감소하였다. 터보 과급장치를 기하학적으로 적절화시킴으로써 싸이클의 동기화 및 동력의 효율이 고려된 열교환 과정의 효율 기준도 제기되었으며 디젤엔진의 연소싸이클을 재수정하는 과정과 터빈의 동역학적 특성도 제시되었다.

• 한국콘텐츠학회논문지
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• 제16권1호
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• pp.699-707
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• 2016

본 연구의 목적은 한국 주식시장을 비롯하여 주변국 시장들과의 상관관계와 동조화 현상을 살펴보는데 있다. 이를 위해 한국 주식시장에 영향을 미칠 것으로 예상되는 미국, 중국, 일본과 유럽을 대표하여 독일을 선정하여 지난 151개월 동안의 자료를 분석하였다. 상관분석 결과 한국시장은 독일 및 미국과 높은 상관관계를 보여 동조화 현상이 나타났으나 일본과는 낮은 상관관계를 보여주었다. 미국시장은 독일과 매우 높은 상관관계를 보인 반면 중국과는 낮은 관계가 나타났다. 중국시장은 미국 및 일본과 상관관계가 낮아 이들 시장에 영향을 받지 않는 독자적인 시장으로 판단되었다. 일본시장은 아시아시장보다는 독일과 미국에 더 많은 영향을 받고 있으며, 독일시장은 아시아시장의 영향을 받아서 미국시장에 영향을 주는 것으로 분석되었다.

• 드라이브 ㆍ 컨트롤
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• 제13권2호
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• pp.1-9
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• 2016

In this paper, an elementary force fighting problem was investigated. The problem is encountered when a double-rod type EHA(electro-hydrostatic actuator) is combined with a single-rod type EHA to build a redundant actuator system with synchronized motion. When the rod-side chambers of the two different types of EHAs have the same effective piston areas and are simultaneously pressurized by an external load, the two EHAs behave identically, sharing the external load equally. However, when the piston head-side chamber of the single rod type EHA, having a larger effective area than the rod-side chamber, is pressurized by the external load, an abnormal force fighting between the two EHAs occurs, unless their pump speeds are properly decoupled. In this study, the output drive forces of each EHA were obtained from the cylinder pressure signals and applied to the position control for each EHA to maintain the balance between their pump speeds. Adding minor force difference feedback loops to the position control, the force fighting phenomena could be eliminated and steady state synchronization errors were reduced. The power consumption of the pumps also could be remarkably reduced, avoiding unnecessarily high load pressures to the pumps.

• 산업경영시스템학회지
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• 제22권51호
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• pp.11-19
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• 1999

This study intends to define $\ulcorner$personality$\lrcorner$ as $\ulcorner$Human-ware$\lrcorner$ based on $\ulcorner$Gene-ware$\lrcorner$ in business management. The sides of personality in management are important source of manifestation of ‘Synergy’, because the importance of personality, that is, $\ulcorner$attitude$\lrcorner$ in individuals is increasing compared with the traditional techniques, $\ulcorner$craft$\lrcorner$. In this work it is considered that Human-ware activates interchange in reciprocal relation between Gene-ware and Hard-ware and performs balancing, intermediating (catalyzing) functions in relative that things(Geneware $\leftrightarrow$ Humanware $\leftrightarrow$ Hardware). $\ulcorner$Gene-ware$\lrcorner$ represents factor and phenomena of life in evolutionary information as human instincts, system of Gene-duum(Gene＋Residuum(in phenomenology) ), Synchronization(in structuralism). In this view, this paper defines the concepts and effects of personality in management as the results of creative and stational functions of Human-ware. And this paper intends to identify the strata of psycho in human as three vertical aspects of $\ulcorner$Manifest$\lrcorner$, $\ulcorner$Latent$\lrcorner$, and $\ulcorner$Found$\lrcorner$, in this respects, function of Human-ware have analogy to that of Manifest in psychological behaviors. Finally, reviewing the Ford system based on Fordism and Taylor's system in Industrial Engineering, pursues the meaning and importance of personality, that is Humanware in management.