• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 1999년도 제3회 압연심포지엄 논문집 압연기술의 미래개척 (Exploitation of Future Rolling Technologies)
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• pp.313-319
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• 1999

The development of deformation texture in FCC polycystalline metals during rolling was simulated by the finite element analysis using a large-deformation, elaatic-plastic, rate-dependent polycrystalline model of crystal plasticity. Different plastic anisotropy due to different orientation of each crystal makes inhomogeneous deformation. Assuming plane strain compression condition, the simulation with a high rate sensitivity resulted in main component change from Dillamore at low rate sensitivity to Brass component.

• 대한수학회지
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• 제43권3호
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• pp.659-676
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• 2006

In this paper, we consider three-component reaction-diffusion system. With an integral condition and a global coupling, this system gives us an interesting free boundary problem. We shall examine the occurrence of a Hopf bifurcation and the stability of solutions as the global coupling constant varies. The main result is that a Hopf bifurcation occurs for global coupling and this motion is transferred to the stable motion for strong global coupling.

• 인터넷정보학회논문지
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• 제5권4호
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• pp.125-134
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• 2004

최근 컴포넌트 기반의 소프트웨어 프러덕트 라인에 대한 연구와 소프트웨어 프러덕트 라인에 자동 생성 프로그래밍 기법을 적용하기 위한 연구가 활발히 진행 중이다. 본 논문은, 컴포넌트 기반의 소프트웨어 프러덕트 라인 개발에 활용될 수 있는 컴포넌트 재구성 자동화 도구를 제안한다. 본 도구는 도메인 공학의 주요 산물인 특성 모델로부터 재사용자의 요구 사항을 받아들여 특성 구성(feature configuration)을 만들고 이를 바탕으로 재구성된 컴포넌트 코드를 자동으로 생성한다. 이를 위하여 컨포넌트 패밀리는 자동 생성 프로그래밍의 한 기법인 GenVoco의 아키텍처를 가지며 XSLT 스크립트가 컴포넌트론 구성하는 구현 부품의 코드 템플릿을 제공한다. ‘은행 계좌’ 컴포넌트 패밀리를 사례 연구로 하여 본 논문의 컴포넌트 재구성 자동화 도구가 재사용자의 목적에 맞는 컴포넌트를 자동으로 생성함을 보였다. 본 논문의 연구 결과는 소프트웨어 프러덕트라인 개발의 생산성을 향상시키는데 응용될 수 있다.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.844-847
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• 2007

전 세계적으로 환경에 대한 관심이 고조되는 가운데 각 산업에서의 환경보호를 위한 노력이 꾸준히 진행되고 있다. 건설분야에서도 환경보존 을 노력이 지속되고 있는 실정이다. 이에 본 논문에서는 친환경성, 고내구성, 가변성, 갱신성능 그리고 쾌적성 등의 종합적인 성능을 갖춤으로써 미래형 건축물의 기본요소가 될 수 있는 친환경 지능형 건축 Component system 제안을 위한 요소기술 분석에 초점을 맞추었다. 친환경 지능형 건축 Component system 개발을 위해 요구되는 성능을 파악한 후 그 성능을 구현시키기 위한 요소기술을 분석한 결과, SI주택과 Home Automation 기술이 주요 요소기술로 도출되었다. 그리고 이론 및 문헌 고찰을 통해 도출된 요소기술의 개념 및 개발동향에 대하여 대해 살펴본 후 최종적으로 이러한 기술요소의 융합을 통한 친환경 지능형 건축 Component system 을 제안하였다.

• 대한한의학방제학회지
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• 제15권2호
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• pp.47-64
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• 2007

This report describes 94 prescriptions related to the use of Radix Angelicae Dahuricae main bl ended from Donguibogam. The following conclusions were reached through investigations on the prescriptions that use Radix Angelicae Dahuricae as a key component. 11.7% of wind. 10.6% of carbuncle and deep-rooted carbuncle. recorded the largest number of clinical frequency of the prescriptions in therapeutic use when Radix Angelicae Dahuricae was ta ken as a monarch drug in prescriptions, Prescriptions that utilize Radix Angelicae Dahuricae as t he main component are used in the treatment of apoplexy and carbuncle and deep-rooted carbuncle. headache. wound and they are also used for treating 26 different types of diseases. The prescriptions are compounded with Radix Angelicae Dahuricae as a monarch drug can ap ply to apoplexy, exogenous febrile disease, invasion by wind. wind-cold pathogen, wind-heat path ogen. epidemic disease, pestilence. bruise, bites, deficiency of liver and kidney, deficiency, phlegm-fire, phlegm-heat. The dosage of Radix Angelicae Dahuricae is 0.37g to 7.5g, however 3.75g has be en taken the most for clinical application. The function of Radix Angelicae Dahuricae is to expelling Wind and relieving pain, to expelling wound and forming muscle. to astrict and neutralizing poison. to expelling wind and to getting through body hole. to emit and relieving pain from the combination of drugs and prescriptions.

• 농촌계획
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• 제14권1호
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• pp.33-41
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• 2008

The main entrance is even disappeared nowadays when the component type is changed, because it loses the actual function. On the other hand, the type of main entrance is changed variously depended on the materials for house and method of construction. Eleven points in the Chungyang-Gun where the environment of rural villages is well maintained was choosed researched to make data. These data of visual component elements were analysed by using the SPSS 12.0 Windows. Cluster Analysis and Factor Analysis was performed to analyze the different types of main entrance in the rural villages. From the above research, we could conclude below results. Research result, The whole quality of the farming village gate with fine feeling and constant temperature characteristic order appeared with the fact that preference quality is highest, in afterwords was analyzed. Also the research which sees led and the result which appears from the landscape quality analysis which the residential gates are general and type by landscape quality analysis the result which appears with the comparative analysis overcomes the limit which the residential gates are general and type by landscape quality analysis the result which appears with the comparative analysis overcomes the limit which the abstractive landscape image has. Like this research result judges currently the research which is meaning which provides a planning standards and the guideline which the governmental department and the rural village improvement enterprising public opinion rural village residential enterprise which is propelling from oneself are detailed. Specially about landscape quality of the residential gate that presents a type classification and preference quality from the actual condition where the research is insufficient the hereafter rural village improvement enterprise specially, sees with the fact that will be the possibility of affecting is meaning to residential section the succeeding researches actively, there being could be advanced, wishes.

• 한국물환경학회지
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• 제30권2호
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• pp.119-127
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• 2014

The objective of this study is to evaluate and analyze Sumjin River Basin water environment system. It was necessary to improve the water quality. The data were collected from 2010 January to 2012 December including Water Temperature, pH, DO, EC, $BOD_5$, COD, TOC, SS, T-N, T-P. The data were used to study were required to; Correlation Analysis; Principle Component Analysis; Factor Analysis. The results were as followed. According to correlation analysis on $BOD_5$ against COD, TOC it revealed that the each value of correlation coefficient were 0.715 and 0.719; this means the strength of the relationship is strong. The same analysis on T-P against $BOD_5$, COD, TOC, SS has revealed that the range of the correlation coefficient value fell between 0.482 and 0.608 which means strength of the relationship between them remained normal. Through correlation analysis, it has been found that all elements except T-N have high correlation. The results of principal component analysis to target the overall water quality was extracted to three main components. The cumulative contribution rate is 68.990%. In the case of seasonal water quality, Spring and Summer are extracted to each of four main components. The cumulative contribution rate is 81.515% and 73.550% respectively. Fall and Winter are extracted to each of three main components. The cumulative contribution rate is 65.072% and 72.721% respectively. There is no seasonality in the case of factor analysis. The first common factor is $BOD_5$, COD, TOC, SS, T-P, which were classified. Totally speaking, Sumjin River Basin water system gets highly affected by the nutrient salts, organic matter and suspended solid at the same time.

• 대한한의학방제학회지
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• 제17권2호
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• pp.39-51
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• 2009

Objectives : In Korea the practice of folk remedies is widely spread. One of the main uses is the utilization of pumpkin in postpartum edema. While this practice is widely propagated no one could exactly define the evidence of its uses. Therefore we aimed to provide literature evidence of correct prescription in postpartum edema. Methods : As the use of pumpkin in postpartum edema is particular to korea, we revised all the medical book published from the 17th century, the time supposed to have been introduced pumpkin in Korean peninsula. We also researched the prescription mainly used in postpartum edema, and the common main herbal component, succium. As pumpkin and succium is homophony to 'Ho bak' in korean it had the possibility of being misinterpreted. Results : On our literature research we found the precautions of pumpkin to provoke gi-stagnatio and dampness obstruction and that it was restricted while the recovery of all kind of diseases as well as in puerperium. The main reason of postpartum edema is caused by blood stasis which when the blood gains its normal circulation, edema is dispersed by itself. For this propose main prescription was Jogyeongsan調經散 type with its main component succium which medical properties are cited in all medical classics consistently. From the literature of "Juchonsinbang" and "Uibanghapbu" we found three different prescriptions, Hobakgo琥珀膏, Hobakgo胡朴膏, and Namgwago南瓜膏 which contents and their medical proposes were equal. Conclusions : By these finding we could refer that the use of pumpkin in postpartum edema was caused by homophonic reasonal misinterpretation of succinum in korean. This research provides the literature evidence to correct pumpkin's misuse and also the necessity of restriction of the use of even most common products for medical proposes and/or at least the importance of being guided by the experts.

• International Journal of Contents
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• 제3권3호
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• pp.1-5
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• 2007

The main memory DBMS (MMDBMS) efficiently supports various database applications that require high performance since it employs main memory rather than disk as a primary storage. An index manager is an essential sub-component of a DBMS used to speed up the retrieval of objects from a large volume of a database in response to a certain search condition. Previous research efforts on indexing proposed various index structures. However, they hardly dealt with the practical issues occurred in implementing an index manager on a target DBMS. In this paper, we touch these issues and present our experiences in developing the index manager. The main issues are (1) compact representation of an index entry, (2) support of variable-length keys. (3) support of multiple-attribute keys, and (4) support of duplicated keys.

• 소성∙가공
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• 제29권1호
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• pp.27-36
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• 2020

The Goss texture component of {110}<001> is well known as one of the best texture components to improve the magnetic properties of electrical steel sheets. The small amount of the Goss texture component is obtained at the surface of the steel sheet by shear deformation due to friction between the steel sheet and the roll during conventional symmetric rolling. This study aims to identify a method to obtain high intensity of the Goss texture component not only at the surface but in the whole layer of the steel sheet by shear deformation of asymmetric rolling. Low carbon steel sheets, which have different initial texture, were asymmetrically rolled by about 50%, 70%, and 80%. The pole figures of the top, center, and bottom layers of the initial and asymmetrically rolled low carbon steel sheets were measured by an X-ray diffractometer. Based on the measured pole figures of these samples, the intensities of the main texture components were analyzed for the initial and asymmetrically rolled low carbon steel sheets. As a result, the initial low carbon steel sheet with the γ-fiber component showed a higher intensity of the Goss texture component in the whole layer than the steel sheet with other texture components after asymmetric rolling.