• 한국품질경영학회:학술대회논문집
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• 한국품질경영학회 1998년도 The 12th Asia Quality Management Symposium* Total Quality Management for Restoring Competitiveness
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• pp.531-543
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• 1998

TRIZ, the Russian acronym for Theory of Inventive Problem Solving(TIPS) is introduced in this paper. The core concepts of TRIZ such as levels of inventions, patterns of technological evolution, technical and physical contradictions are explained. It is also discussed that how TRIZ can be applied to quality function deployment in order to overcome negative correlations(i.e., trade-off relationships) between engineering characteristics. Some case examples are presented for the purpose of explanation.

• 경영과학
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• 제15권2호
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• pp.239-257
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• 1998

Facing the globalization of world economy, intense market competition, radical change of information technology, firms are obliged to create a new type of organizations characterized by flexibility and adaptability to new and dynamic environments. This paper reviews the theories of complexity in physics briefly and discusses the implications of them on the management of business organizations. It analogizes the core concepts from complexity theories such as cooperative phenomena, self-organization, adaptation, positive feedback, and butterfly effect, and attempts to identify their implications on business management. Particularly, it suggests principles of 'Fractal' management which apply the fractal structure to the business organization.

• Journal of Information Technology Applications and Management
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• 제23권2호
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• pp.143-152
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• 2016

We can organize, manage, search, and process the documents efficiently by a document clustering. In general, the documents are clustered in a high dimensional feature space because the documents consist of many terms. In this paper, we propose a new method to cluster the documents efficiently in a low dimensional feature space by finding the core concepts from a domain ontology corresponding to the particular area documents. The experiment shows that our clustering method has a good performance.

• Journal of Information Display
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• 제12권1호
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• pp.57-59
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• 2011

Drastic performance increase and accelerated progress in organic light-emitting diodes from solutions are shown using solution-processable small molecules based on the core structures of vacuum-evaporable materials. Systematic modification of small-molecule materials toward better processability from solutions at identical electro-optical properties is shown. This is demonstrated to lead to a significant improvement in the device performance.

• 동력기계공학회지
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• 제21권3호
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• pp.85-92
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• 2017

Global air traffic is forecast to grow at an average annual rate of around 5% in the next 20 years. The continuous growth of air traffic and raised environmental awareness put increasing pressure on aero engine manufacturers to reduce fuel burn and emissions. NEWAC are a new integrated program of the European Union with focus on innovative core engine concepts to achieve this problem. In this paper, Within NEWAC, active core engine configurations will be investigated. the investigation is focused on the optimal design of the CAC heat exchanger for active core. For optimal design of he CAC heat exchanger, the HTFS of basic design of heat exchanger are analyzed so as to proceed an optimization routines based on Response Surface Method(RSM) and Design of Experiment(DOE). As a result, CAC heat exchanger optimized by 1.0314 lb/s mass flow rate and 3.9058 mm TP of tube layout and 206.8181 mm height of heat exchanger and 918 tube number for heat transfer and pressure drop. We confirm the design optimization using RSM and DOE is useful on complex structure of heat exchanger.

• 한국문헌정보학회지
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• 제15권
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• pp.45-72
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• 1988

A study has been made prior to the emphatic research to see how the curriculum of the Library Science Departments, in general, has developed to date. In the principles of the composition of the curriculum of library science, research has been conducted to determine what decisions will be the most appropriate for the changing trend of the society, regarding the matters of general specialization versus subject specialization education, the definition, change and operation of the core subject, the expansion of the elective specialized subjects and the composition of the curriculum by types of the library, and the curriculum composition in terms of subject specilization. The curriculum should consist of a unified series of courses and other educational experiences, designed to meet specific program objectives. Principles and concepts should be emphasized, over routines and techniques. All students should study certain fundamental 'core' subjects, as well as more specialized electives. General education (studies outside of librarianship) should be a major component of the total education of the librarian. Fundamental core subjects should be treated as introductory courses covering deep studies that can provide the most inclusive information related to the library science field. They should be offered as pre-requisites required of all the students entering the Department of Library Science. Specialized subjects and interdisciplinary courses comprising subject concentration should be offered as electives at the advanced level.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2004년도 Proceedings of the 4th Korea-China Joint Workshop on Nuclear Waste Management
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• pp.150-164
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• 2004

According to the Korean long-term plan for nuclear technology development, KAERI is conducting a few R&D projects related to the proliferation-resistant back-end fuel cycle. The R&D activities for the back-end fuel cycle are reviewed in this work, especially focusing on the study of the partitioning and transmutation(P&T) of long-lived radionuclides. The P&T study is currently being carried out in order to develop key technologies in the areas of partitioning and transmutation. The partitioning study is based on the development of pyroprocessing such as electrorefining and electrowinning because they can be adopted as proliferation-resistant technologies in the fuel cycle. In this study, various behaviors of the electrodeposition of uranium and rare earth elements in the LiCl-KCl electrorefining system have been examined through fundamental experimental work. As for the transmutation system, KAERI is studying the HYPER (HYbrid Power Extraction Reactor), a kind of subcritical reactor which will be connected with a proton accelerator. Up to now, a conceptual study has been carried out for the major elemental systems of the subcritical reactor such as core, transuranic fuel, long-lived fission product target, and the Pb-Bi cooling system, etc. In order to enhance the transmutation efficiency of the transuranic elements as well as to strengthen the reactor safety, the reactor core was optimized by determining its most suitable subcriticality, the ratio of height/diameter, and by introducing the concepts of optimum core configuration with a transuranic enrichment as well as a scattered reloading of the fuel assemblies.

• Nuclear Engineering and Technology
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• 제52권2호
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• pp.238-247
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• 2020

The Burnable Poison (BP) is very important for all Light Water Reactors in order to hold-down the initial excess reactivity and to control power peaking. The use of BP is even more essential as the excess reactivity increases significantly with a longer operation cycle. In this paper a feasibility study was conducted in order to investigate the benefits of a new combinational BP concept designed for 24-month cycle PWR core. The reference designs in this study are based on the two Korean fuel assemblies; 17 × 17 Westinghouse (WH) design and 16 × 16 Combustion Engineering (CE) design. A modification was done on these two designs to extend their cycle length from 18 months into 24 months. DeCART2D-MASTER code system was used to perform assembly and core calculations for both designs. A preliminary test was conducted in order to choose the best BP suitable for 24-month as a representative for single BP concept. The comparison between the results of two concepts (combinational BP concept and single BP concept) showed that the combinational BP concept can replace the single BP concept with better performance on holding down the initial excess reactivity without violating the design limitations.

• 한국CDE학회논문집
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• 제13권5호
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• pp.342-351
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• 2008

ISO 10303-AP241 is an Application Protocol of ISO 10303, which specifies the representation of AEC facility's life cycle information. The Working Draft of AP241 was submitted to the TC184/SC4 of ISO in July, 2007 by Korean team of ISO TC184/SC4/WG3. This paper introduces the currently developed draft Ap241 core model, and describes the life cycle support modules which are required to represent the life cycle information of AEC facilities. The draft core model is developed as a generic data model which is useful as a basis for implementation in a data warehouse. This core model could be used in combination with reference data such as PLCS RDL, Gellish table and RDL of ISO 15926. These concepts already exists in ISO 10303-AP221, AP239 and ISO 15926. In order to support maintenance and feedback of operational information concerning the AEC facilities, the AP241 team re-used many modules from AP239, and developed various STEP Application Modules which are adapted from the ISO 15926.

• 디지털콘텐츠학회 논문지
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• 제19권5호
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• pp.891-898
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• 2018

4차 산업혁명시대에서 그 중요성이 날로 증대하고 있는 소프트웨어의 핵심 교육 영역인 프로그래밍 언어는 논리적 사고 능력을 요구하고 있어 SW전공 학생들에게도 어려운 과목으로 인식되고 있다. 이런 어려움으로 인해 SW전공 학생이 프로그래밍 언어 입문 수업 도중 전공에 대한 흥미와 자신감을 잃고 전공을 변경하거나 학업 자체를 포기하는 상황이 발생하기도 한다. 본 연구는 SW전공자의 프로그래밍 입문 수업에 일반적으로 사용되는 C 언어 교육에 스크래치를 활용하는 수업 모형을 설계하였다. 이를 위해, C언어가 지원하는 프로그래밍 개념들 중 스크래치로 교육 가능한 개념들을 명확히 파악하고 그 개념들의 이해와 활용 능력을 배양하기 위한 스크래치 실습 예제들을 개발하였다. 본 수업 모형은 프로그래밍 개념들에 대해서 먼저 스크래치의 구현 방식 교육과 예제들을 통해 명확하게 이해하고 C언어로 교육 내용을 확장하는 절차를 지원하며 모 지방 사립대의 SW전공 신입생들을 대상으로 효과를 실험하였다.