• 경영과학
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• 제22권1호
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• pp.103-125
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• 2005

Korean government is planning to adopt double entry bookkeeping with accrual basis in the government accounting system. This paper attempts to identify influencing attitudes of information producers toward the acceptance of the new service system. Several models are introduced, including Luder's Contingency Model, Cheng's Politico-Economic Model of Accounting Policy Choice, Roger's Diffusion of innovation, and Davis's Technology Acceptance Model(TAM). A set of constructs are developed as fellows : information producers' knowledges, experiences, altitudes toward the reform, characteristics of cash based accounting system and new accrual based system, a chief executive officer's willingness to support, availability of supporting systems, and social Influences from external environment. This study also incudes hey factors used in TAM, such as perceived usefulness and ease of use. Survey responses are gathered from accounting officers in government ministries and agencies as well as from local governments. Regression analysis shows that, for information producers, both 'perceived ease of use' and 'perceived usefulness' of the new system are the best explanatory variable for the dependent variable. It has also found that 'perceived usefulness' is explained best by individual characteristics such as knowledge and experiences, quality of current cash based s1n91e entry bookkeeping system, chief executive's support, Positive supporting systems and social influences. The useful guidelines for implementing double-entry bookkeeping system with accrual basis are also provided.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2000년도 춘계학술대회논문집
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• pp.1945-1950
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• 2000

When one build a building that posses Precison production process to be sensitive to vibration and SMD to procuce a large dynamic force, how do one predict & answer vibration control problem at building structure design at first stage, That is a question. It has tried to predict dynamic response and establish answering about global or local dynamic problem in building using experimental and analysis method. One of such a try, it be proposed Semi-Empirial Method that reduce error element of input information about dynamic analysis using dynamic experimental study and measurement data in the basis of real-structure. In this paper, the dynamic response problem about RC-structure building that will be set-up SMD produce large transient dynamic force using Semi-Empirical Method.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2002년도 춘계학술대회논문집
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• pp.147-152
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• 2002

It has tried to predict dynamic response and establish answering about global or local dynamic problem in structures using experimental and analysis method. One of such a try, it be proposed Semi-Empirical Method that reduce error element of input information about dynamic analysis using dynamic experimental study and measurement data in the basis of real-structure. In this paper, the dynamic response problem about piping system that be set-up THERMOWELL produce flow fluid dynamic force using Semi-Empirical Method

• 대한전기학회논문지
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• 제35권8호
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• pp.309-315
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• 1986

We proposed a preliminary Data Flow Machine Model(DNL1) operating on the basis of Node Label. In this model, all the PMs(Processing Modules) were synchronized with the content of LC(Level Counter) and were not implemented dy the processing cability on conditional nodes. This paper presents an architecture of a concurrent multiprocessor system which was developed from DNL1 with two additional types of memories, CF(Control Flag) and ETF (Enabled Token Flag). The CF memory holds the control condition flag ('1' or '0') to be referenced to when a node is fired and the ETF represents the firability of a certain node. Firable nodes are fetched to the PU(Processing Unit) and processed. This Data Flow system can be extended hierarchically by a network of simple modules. The principle working elements of the machine are a set of PMs, each of which performs the execution of the data flow procedures held in a local memory, NTM(Node Token Memory) within the PM.

• 대한화학회지
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• 제47권4호
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• pp.325-333
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• 2003

1,2-와 1,3-dioxetane$(C_2O_2H_4)$, 그리고 1,3-cyclodisiloxane$(Si_2O_2H_4)$에 대하여 높은 이론 수준에서 분자구조, 진동주파수, 그리고 에너지 등을 계산하였다. 위의 모든 분자들에 대하여 TZ2P CCSD(T)의 이론 수준까지 분자구조를 최적화 하였으며. 진동주파수는 여러 basis set에서 SCF 방법으로 계산하였다. 본 연구에서 최적화된 분자구조들에 대한 진동주파수가 모두 실수(real number)로 예측됨으로서, 제안된 모든 분자구조가 local minimum 구조임을 확인하였다. 1,2- 및 1,3-dioxetane들과 cyclodisiloxane이 두 분자의 aldehyde와 silanone으로 해리 될 때의 중합에너지를 zero-point vibrational energy(ZPVE)를 고려하여 계산하고, 안정성을 비교하였다.

• 대한화학회지
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• 제45권5호
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• pp.401-412
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• 2001

$H_{2n+1}^+$ (n=1~6) cluster들에 대하여 높은 수준의 순 이론적(ab initio) 양자역학적 방법을 사용하여 분자 구조, 진동 주파수(vibrational frequency), 그리고 해리 에너지 등을 계산하였다. 분자구조는 $H^+_g$까지는 TZ2P+ d CCSD(T) 수준에서 그리고 $H_{11}^+$과 $H_{13}^+$에 대해서는 TZ2P CCSD(T) 수준까지 최적화하였다. 진동 주파수는 여러 basis set에서 SCF 방법으로 계산하였으며, 본 연구에서 최적화된 모든 분자구조들이 local minimum 구조임을 확인하였다. $H_{2n+1}^+$로부터 $H_2$ 의 해리 에너지($D_e$)는 각각의 최적화된 분자구조에서의 에너지 차로부터 계산하였으며, 영점 진동에너지(ZPVE)를 고려하여, 지금까지의 이론 및 실험결과($D_0$)와 비교하였다.

• 시큐리티연구
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• 제4호
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• pp.343-363
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• 2001

Chapter 1 is the introduction part. With the development of modem science and technology, the world has experienced serious disaster. Each occurrence of such disaster has reminded the people all over the world of the importance of coping with the disaster and therefore all the countries have set up the disaster administration system to handle their disasters in efficient way. The principal purpose of this research is to establish ways and means needed to improve the disaster management system in Korea. Chapter 2 introduces the reader to a disaster management theory Chapter 3 dealt with the problems on the disaster administration system, under which the first and second section mention the points at issue in the system of law and administration of our country, respectively, Chapter 4 dealt with the plan to improve the disaster adminstration system under which the first section describes its basic direction while the second section describes the clarification of the role share of the central government and local autonomous body, beefing up the functions of disaster administration of the central government and local autonomous body. establishment of disaster prevention system, activation of support program against disaster, raising the professional personnels, extending the disaster prevention facilities, etc. Chapter 5, the conclusion, describes the difficulties in coping with the disaster under the existing disaster administration system. Therefore, the entire fundamental of disaster administration is in need such as distinct roles of the central government and local autonomous body, improving the systems of law and administration, education and training, and guidance and superintendence, etc. In addition, the control function of the concerned authorities must be reinforced to perform the disaster administration system smoothly while establishing 24 hour emergency system. Also, the financial support from the central government and technical study on the disaster administration should be done continuously on long-term basis.

• 만화애니메이션 연구
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• 통권28호
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• pp.209-233
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• 2012

국내 애니메이션 산업 클러스터는 기업, 지자체, 교육기관, 인력 등의 다양한 클러스터 구성 요소를 가지고 1990년대 후반에 지역 문화산업 클러스터 형성 시기에서 시작되었다. 국내 문화산업 클러스터는 그 범위를 전국 단위로 하고 각 지역의 특성을 도입하여 육성하는 것이 타당하나, 지역 단위의 산업 진흥이라는 정책 목표에 의해 지역 단위의 소규모 클러스터로 육성 되어졌다. 이로 인해, 지역 문화산업은 태생적 한계의 문제를 가지고 시작되었고, 지역 애니메이션 산업도 지역 산업으로의 정착할 때까지 인위적인 진흥 정책이 필요하였다. 이 과정에서 지역 진흥 기관이 등장하였고, 지역 진흥 기관의 진흥 정책 성과에 의해 클러스터의 성과가 나타나기 시작하였다. 이러한 성과는 대단위 클러스터에서의 영향 분석은 가능하지만, 국내 현실과 같은 소단위 클러스터에서는 영향과 성과 분석이 매우 힘든 문제를 가지고 있다. 또한, 지금까지 클러스터 성과를 바라보는 시각은 클러스터의 성격이나 효과가 아닌 클러스터의 존재의 유무 판별이 중심적이었다. 즉, 지금까지의 방식으로는 국내 지역 산업 클러스터의 성과를 평가하기 힘든 문제가 존재한다. 구체적인 애로점은 첫째, 현재 지역 문화산업클러스터는 자생적 클러스터가 아닌 정책적 진흥으로 생성된 인위적 클러스터에 가깝기 때문에 기존의 평가로는 진단을 하기가 어려운 문제가 있다. 둘째, 각 지역 애니메이션 산업 클러스터들은 거의 동일한 국내 시장을 가지고 있으며, 각 클러스터간의 지리적 거리가 크게 이격되어 있지 않아 각각의 클러스터의 성과 및 효과를 판단하는데 많은 애로가 있다. 셋째, 이러한 지역 문화산업 클러스터 성과의 중심에는, 위에서 언급한 바와 같이 진흥기관이 존재하는 특징을 가지고 있어 기존 방식의 진단 분석으로는 정확한 성과 분석이 되지 않는 어려움이 있다. 따라서 본 연구에서는 클러스터 경쟁론을 기반으로 다이아몬드 모델을 활용하여 새로운 모델을 만들어, 지역 애니메이션 산업 클러스터 진흥기관의 존재를 파악하고, 클러스터의 성과 보다는 지역 산업 진흥의 주체인 진흥기관의 역할을 분석할 수 있게 하였다. 또한, 춘천과 부천의 사례를 대입하여 실증해 봄으로써 진흥기관의 진흥 성과 분석이 가능한지를 검토해 보았다. 이 과정을 통하여 애니메이션을 중심으로 한 지역 문화산업 클러스터 진흥기관의 진흥 성과에 대한 분석이 가능함을 발견할 수 있었고, 클러스터의 활성 정도와 방향성을 볼 수 있었다.

• Wind and Structures
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• 제9권2호
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• pp.95-108
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• 2006

Wind turbines are highly complex structures for numerical flow simulation. They normally comprise of a turbine mounted on a tower thus the movement of the turbine blades and the blade/tower interaction must be captured. In addition the ground effect should also be included. There are many more important features of wind turbines and it is difficult to include all of them. A simplified set of features is chosen here for both the turbine and the tower to show how the method can begin to identify the main points connected with wind turbine wake generation and tip vortex tower interaction. An approach to modelling the rotating blades of a turbine is proposed here. The model uses point forces based on blade element theory to model the blades and takes into account their time dependent motion. This means that local instantaneous velocities can be used as a basis for the blade element theory. The model is incorporated into a large eddy simulation code and, although many important features are left out of the model, the velocity/power performance relation is generally of the correct order of magnitude. Suggested improvements to the method are discussed.

• Structural Engineering and Mechanics
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• 제49권3호
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• pp.355-372
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• 2014

Considering the history of severe earthquakes and the presence of active faults in the greater Tehran region, the possibility of a destructive earthquake occurring is high and seismic hazard analysis is crucial. Gumbel distributions are commonly-used statistical distributions in earthquake engineering and seismology. Their main advantage is their basis on the largest earthquake magnitudes selected from an equal-time predefined set. In this study, the first asymptotic distribution of extremes is used to estimate seismicity parameters and peak ground acceleration (PGA). By assuming a Poisson distribution for the earthquakes, after estimation of seismicity parameters, the mean return period and the probable maximum magnitude within a given time interval are obtained. A maximum probable magnitude of 7.0 has a mean return period of 100 years in this region. For a return period of 475 years, the PGA in the greater Tehran region is estimated to be 0.39g to 0.42g, depending on local site conditions. This value is greater than that of the Iranian Code for Seismic Design of Buildings, indicating that a revision of the code is necessary.