• Bulletin of the Korean Chemical Society
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• 제33권3호
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• pp.803-808
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• 2012

We have implemented two-component spin-orbit relativistic effective core potential (SOREP) methods in an all-electron relativistic program DIRAC. This extends the capacity of the two-component SOREP method to many ground and excited state calculations in a single program. As the test cases, geometries and energies of the small halogen molecules were studied. Several two-component methods are compared by using spin-orbit and scalar relativistic effective core potentials. For the $I_2$ molecule, excitation energies of low-lying excited states agree well with those from corresponding all-electron methods. Efficiencies in SOREP calculations enhanced by using symmetries are also discussed briefly.

• 인터넷정보학회논문지
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• 제7권6호
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• pp.1-10
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• 2006

컴포넌트 재사용을 통한 소프트웨어의 개발은 소프트웨어 생산비용을 절감할 수 있는 유용한 방법이다. 그러나 컴포넌트 재사용에 있어 키워드나 카테고리 분류에 의한 검색 방법은 컴포넌트 개체의 복잡성으로 인하여 정확한 컴포넌트 검색이 어렵다. 따라서 기존의 다른 연구 방법을 조사/분석하여 XML 명세를 이용한 컴포넌트 분류 및 검색에 효과적인 방법 및 이를 기반으로 한 컴포넌트 통합관리 시스템 구조를 제시하고자 한다. 컴포넌트 검색에 있어 많은 일치하지 않은 컴포넌트 메타 표현인 DTD 항목이 존재한다. 이를 보완하기 위하여 정확도 및 간결도 측정을 사용한 검색 방법은 우선적으로 고려해야할 컴포넌트를 찾는데 효과적인 하나의 방법이다. 이 방법은 기존의 키워드 검색으로 어려운 유사하게 일치하는 항목의 컴포넌트를 찾음으로써 보다 나은 우선순위를 갖는 적합한 컴포넌트 검색이 가능하게 한다.

• 한국정보과학회논문지:소프트웨어및응용
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• 제31권6호
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• pp.741-749
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• 2004

컴포넌트 기반 개발에서 컴포넌트 사용자는 개발 목적에 맞추어 컴포넌트를 맞춤 할 필요가 있다. 컴포넌트는 그 내부에 블랙박스특성을 갖는 부분과 화이트박스특성을 갖는 부분이 공존하고, 맞춤으로 인해 화이트박스 부분이 변형되며, 이때 발생하는 오류는 블랙박스 부분과 화이트박스 부분의 상호작용을 통해 나타나게 된다. 블랙박스 부분과 화이트박스 부분 사이의 통합 테스트인 맞춤 테스트를 위해서 새로운 테스트 기법이 요구된다. 또한 테스트 기법이 비용 절감 효과를 노리는 컴포넌트 기반 개발에 사용되기 위해서는 효율적인 테스트 데이타의 선정이 요구된다. 따라서 본 논문에서는 컴포넌트 아키덱쳐로 COM(Component Object Model)을 대상 컴포넌트로 선정하고, 다양한 COM 컴포넌트들의 분석을 통하여 효율적인 테스트 데이타를 선정하는 맞춤 테스트 기법을 제안한다. 본 논문에서는 제안하는 기법이 선정하는 테스트 데이타가 오류 감지 능력에 있어서 효과적이라는 것을 실험을 통해 평가한다. 또한 본 기법을 실제 대규모 컴포넌트 기반 시스템인 샤모아에 적용하는 예제를 수행함으로써, 본 기법이 컴포넌트 기반 시스템의 일원으로서 실제 동작하는 COM 컴포넌트의 맞춤을 테스트할 수 있음을 보인다.

• Bulletin of the Korean Chemical Society
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• 제34권1호
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• pp.179-187
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• 2013

We describe newly developed software named KPACK for relativistic electronic structure computation of molecules containing heavy elements that enables the two-component ab initio calculations in Kramers restricted and unrestricted formalisms in the framework of the relativistic effective core potential (RECP). The spin-orbit coupling as relativistic effect enters into the calculation at the Hartree-Fock (HF) stage and hence, is treated in a variational manner to generate two-component molecular spinors as one-electron wavefunctions for use in the correlated methods. As correlated methods, KPACK currently provides the two-component second-order M${\o}$ller-Plesset perturbation theory (MP2), configuration interaction (CI) and complete-active-space self-consistent field (CASSCF) methods. Test calculations were performed for the ground states of group-14 elements, for which the spin-orbit coupling greatly influences the determination of term symbols. A categorization of three procedures is suggested for the two-component methods on the basis of spin-orbit coupling manifested in the HF level.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.496-498
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• 2003

Signal is composed of the independent components that can describe itself. These components can distinguish itself from any other signals and be extracted by analysis itself. This algorithm is called Independent Component Analysis (ICA) and image signal is considered as linear combination of independent components and features that is the weighted vector of independent component. This algorithm is already used in order to extract the good feature for image classification and very effective In this paper, we'll explain the method of stereo matching using independent component analysis and show the experimental result.

• 한국멀티미디어학회논문지
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• 제9권6호
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• pp.750-761
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• 2006

As CBD technologies and researches have been matured, component framework as a larger reuse unit than component is being introduced. Especially issues related with adaptation and integration of components in CBD are being raised as a new research topic. The component framework is given as a solution to resolve these issues. However, current approaches don't suggest a sound and comprehensive reference model and development process applying reference model. In order to develop practical and stable component framework, reference model and concrete guidelines are essential elements. In this paper, we propose a generic reference model integrating existing reference models and a design technique of component framework based on it. Especially, we propose concrete and pragmatic guidelines such as how to design component framework architecture's view and style, how to design commonality and variability of component framework, how to design macro workflows among components, and so on. We believe that the proposed reference model becomes basis for component framework development, and the proposed design technique will support reliable and effective development of the component framework.

• 대한안전경영과학회지
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• 제5권2호
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• pp.75-85
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• 2003

Manufacturing firms have adapted seriously the Design for Manufacture and Assembly (DFMA) techniques which consider concurrently all factors related to the product development by using effective communications and sharing of information on product development processes. This study performed modelling and characterizing the data related to product manufacturing information for Design for Manufacture(DFM) evaluation and analysis. It adapted component-based development method for communicating and managing manufacturing information among distributed manufacturing organizations. Introducing component-based development offers safety and speed to network based system. This development using Unified Modelling Language(UML) provides efficient way for reconstruction and distribution of applications. Also, the integration of database and component into the internet environment enables to communicate and manage effectively manufacturing information for DFM evaluation and analysis at any place in the world. Therefore this system can make it more reasonable that evaluating, analyzing, and effective decision making of product design using DFM technique.

• Journal of Preventive Medicine and Public Health
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• 제30권4호
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• pp.815-829
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• 1997

This study was performed to assist the employer to establish the effective program for hearing conservation of noisy industry. The study subjects were health care managers of an industry and the study industries were devided into two groups(Group I, 37 industries; have the workers diagnosed as noise-induced hearing loss, Group II, 41 industries; not have the workers diagnosed as noise-induced hearing loss) and the question method carried out through the face to face interview. The contents of questionnaire for OSHA's hearing conservation program(HCP) consisted of seven components: 5 questions of monitoring of employee noise exposures(component 1), 6 questions of the institution of engineering, work practice, and administrative controls for excessive noise(component 2), 8 questions of the provision of each overexposed employee with an individually fitted hearing protector with an adequate noise reduction rating(component 3), 14 questions of employee training and education regarding noise hazards and protection measures(component 4), 9 questions of baseline and annual audiometry(component 5), 3 questions of procedures for preventing further occupational hearning loss by an employee whenever such an event has been identified(component 6), and 1 question of recording keeping(component 7), thus total numbers of questions was 46. The numbers of statistially significant difference(p<0.05) between two groups were 2(25.0%) among 8 questions of component 3, 10(71.4%) among 14 questions of component 4, 3(33.3%) among 8 questions of component 5, 2(6.7%) among 3 questions of component 6, and 17(37.0%) among total 46 questions of questionnaire. Above results showed that the level of HCP acceptance in group I was lower than in group II. Thus employer's understanding about HCP should be precede for the effective hearing conservation program of employee and the adequate hearing protector, training and education, baseline and annual audiometry, and procedures for preventing further occupational hearning loss for hearing conservation would be more emphasized.

• 정보처리학회논문지D
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• 제9D권3호
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• pp.417-426
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• 2002

컴포넌트 저장소의 효율적인 검색이 컴포넌트 재사용에 매우 중요하다. 컴포넌트 저장소에 보관할 컴포넌트에 대한 정보를 얻는데 일반적으로 많은 시간과 노력이 필요하다. CORBA 3의 컴포넌트 소프트웨어 서술자는 XML을 사용하여 일반적인 컴포넌트의 특성을 서술한다. 본 논문에서 CORBA 3의 소프트웨어 컴포넌트 서술자를 확장하며 이를 사용하여 컴포넌트 저장소의 검색에 필요한 정보를 얻는다. 패싯에 기초한 새로운 검색 방법을 제안하여 기존의 패싯 방법에서 지원하지 않았던 논리 연산자를 사용한 검색이 가능하며 또한 검색의 복잡도가 향상된다.

• 대한가정학회지
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• 제35권1호
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• pp.47-58
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• 1997

The purpose of this study was to investigate the relationship between children's gender role attitude measured by component model and social competency. Subjects were 232 elementary school children: 113 4th graders and 119 6th graders. The main results were as follows. First there were significant differences in mean scores of gender role attitude with age and sex variable. And among three dimensions of component model(i.e, gender label-component links within-component links between-component links) the difference was most discriminant in gender label-component links. Second there were significant relationship between gender role attitude and social competency. Among three dimensions of gender role attitude the most predictor variable for social competency was gender label-component links. And among four dimensions of social competency the most effective criterion variable for gender role attitude was leadership. And there were significant differences in social competency score with mother's educational level and sex of children as well as gender role attitude. In conclusion children's gender role attitude influence their social competency. More flexible gender role attitude they have more improved in their social competency , especially in boys.