• Applied Biological Chemistry
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• 제47권2호
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• pp.208-215
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• 2004

양식산 굴을 동결 건조 및 분쇄하여 분말화한 다음 된장에 첨가하여 양식산 굴 첨가 된장의 제조를 시도하였으며, 아울러 이의 특성에 대하여 살려보고자 하였다. 시판 된장에 굴 분말을 첨가하는 경우 첨가량의 증가에 따라 굴 첨가 된장의 수분은 감소를 하였고, 조단백질 및 아미노질소 함량은 증가를 하였으며, 염도 및 산도는 거의 변화 없었다. 또한 굴 분말의 첨가량을 증가시킬수록 굴 첨가 된장의 색조는 짙어지는 경향을 나타내었다. 이와 같은 결과와 관능검사로 미루어 굴 첨가 된장의 제조를 위한 최적 굴 첨가량은 시판 된장에 대하여 9%로 판단되었다. 이와 같은 비율로 첨가하여 제조한 굴 첨가 된장은 시판 된장에 비하여 구성아미노산 함량의 경우 약 2% 정도 많았고, 무기질의 경우 칼슘과 인의 비율이 1:2-2:1의 범위로 개선되었으며, 건강 기능성 지방산으로 대표되는 EPA 및 DHA이 검출되었다. 한편 굴 첨가 된장의 맛을 지배하는 유리아미노산 중 대표되는 맛은 glutamic acid와 aspartic acid로 판단되었다. 이상의 결과로 미루어 보아 시판 된장에 굴 분말을 9%정도 첨가하여 제조하는 경우 된장의 영양성 단백질 및 건강 기능성 지질의 강화, 뿐만 아니라 다소의 맛 개선으로 된장 이외에 엑스분의 추출을 위해 별도의 굴과 같은 해산물을 첨가하기 위한 노력을 단축할 수 있으리라 판단되었다.

• 설비공학논문집
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• 제22권4호
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• pp.219-224
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• 2010

Recycling issue for the construction wastes is gradually important to future society. Recently, a star screen has been developed to use for this purpose, however some modifications were needed to enhance the separation accuracy. The objective of study is to evaluate and predict separation ability by verifying the effect for the modified shapes of the screen part. Two analysis models of the screen part were established using commercial software ADAMS to simulate the dynamic interaction of waste particles. Results showed that spacer and gear shapes directly affected separation ability. The modified spacer shapes were much higher screening rate with comparison to default shape. Screening ability for the half number of gear type was greater than other types. Therefore, modification of the design of screen part will be required to achieve better separation ability.

• 한국자동차공학회논문집
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• 제11권6호
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• pp.205-212
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• 2003

This paper may provide a basic design data for the safer car seat mechanism and the quality of the material used by finding out the passenger's dynamic behavior when protected by seat belt during collision. A computer simulation with finite element method is used to accomplish this objective. At first, a detailed geometric model of the seat is constructed using CAD program. The formation of a finite element from a geometric data of the seat is carried out using Hyper-Mesh that is the commercial software for mesh generation and post processing. In addition to seat modeling, the finite element model of seat belt and dummy is formed using the same software. Rear impact analysis is accomplished using Pam-Crash with crash pulse. The part of the recliner and right frame is under big stress in rear crash analysis because the acceleration force is exerted on the back of the seat by dummy. The stress condition of the part of the bracket is checked as well because it is considered as an important variable on the seat design. Front impact model which including dummy and seal belt is analyzed. A Part of anchor buckle of seat frame has high stress distribution because of retraction force due to forward motion of dummy at the moment of collision. On the basis of the analysis result, remodeling and reanalysis works had been repeatedly done until a satisfactory result is obtained.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2004년도 추계학술대회 논문집
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• pp.1295-1298
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• 2004

Selective Laser Sintering(SLS) method is one of Rapid Prototyping(RP) technologies. It is used to fabricate desirable part to sinter powder and stack the fabricated layer. To develop this SLS machine, it needs effective scanning path and the development of scanning device. This paper shows how to make fast scanning path with respect to scan spacing, laser beam size and scanning direction from 2-dimensional sliced file generated in commercial CAD/CAM software. Also, we develop the scanning device and its control algorithm to precisely follow the generated scanning path. Scanning path affects precision and total machining time of the final fabricated part. Sintering occurs using infrared laser which has high thermal energy. As a result, shrinkage and curling of the fabricated part occurs according to thermal distribution. Therefore, fast scanning path generation is needed to eliminate the factors of quality deterioration. It highly affects machining efficiency and prevents shrinkage and curling by relatively lessening the thermal distribution of the surface of sintering layer. To generate this fast scanning path, adaptive path generation is needed with respect to the shape of each layer, and not simply x, y scanning, but the scanning of arbitrary direction must be enabled. This paper addresses path generation method to focus on fast scanning, and development of scanning system and control algorithm to precisely follow generated path.

• 천문학회보
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• 제35권1호
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• pp.39.1-39.1
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• 2010

We are developing a CCD camera named CQUEAN (Camera for Quasars in Early Universe) to search for quasars at z > 7. CQUEAN has a 1024*1024 deep depletion CCD chip and will be attached to 2.1m Otto-Struve Telescope at McDonald Observatory, USA. Although commercial software for the CCD camera is provided by the vendor, we are going to develop our own software to control the other instruments as well, to carry out efficient observation. There are four major parts in our software: Instrument control part controls the camera and filter wheel to obtain imaging data. Quick look window is to display acquired imaging data for quick inspection. Telescope control part interfaces with Telescope Control System (TCS) to move the telescope and to get time or coordinate information. Finally, Observation scripting facility part carries out a series of short exposures in a batch. The whole software will be written in python on linux platform, using the instrument control software libraries provided by the vendors.

• 한국콘텐츠학회논문지
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• 제3권1호
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• pp.39-46
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• 2003

전자상거래분야는 시공간을 넘은 소비자의 취향 및 요구에 따라 보다 효율적인 서비스 지원을 위하여 급속히 변화 되고 있다. 이에, 다양한 상품에 따른 콘텐츠의 처리와 관리는 소비자의 측면에서 고려되고, 컴포넌트 기반의 개발은 이를 효과적으로 운영하기 위하여 개발자 및 관리자의 측면에서 고려되었다. 즉, 전자상거래 시스템은 소비자의 다양한 취향에 따른 상품콘텐츠 관리와 이를 효율적이고 능동적으로 대처할 수 있는 컴포넌트 기반의 개발을 필요로 한다. 따라서, 본 연구에서는 서버측 컴포넌트 모델인 EJB(Enterprise Java Beans)기반의 물품 구매 시스템을 구현하였다. 이는, 상품 콘텐츠에서 구매에 이르는 각 기능단위를 독립적인 수행모듈인 컴포넌트로 구현하며, 이를 합성함으로서 전체의 구매 시스템을 이루도록 하였다. 이에 따라, 독립 기능 단위인 컴포넌트는 다양하게 변화되는 콘텐츠의 처리에 능동적으로 대처할 수 있다.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2005년도 춘계학술대회 논문집
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• pp.219-222
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• 2005

The temperature difference between die and workpiece has frequently caused various surface defects. The non-homogeneous temperature distribution of forged part should be analyzed to prevent the generation of various defects related with the temperature. The surface temperatures were mainly affected by the coefficient of thermal contact conductance. The precise coefficient is necessary to predict accurately the temperature changes of die and workpiece. The experiment is preformed to measure the temperature distribution of die and workpiece in closed die upsetting. And then, the coefficient is classified into function of pressure and confirmed by the comparison between experiments and FE analyses using the other model. The FE analysis to predict the temperature distribution is performed by commercial software $DEFORM-3D^{TM}$. However, it might be impossible to measure directly the temperature distribution of forged part. Therefore, the comparisons between measured temperature and predicted values are performed with the hardness of Al6061-forged part.

• 국제초고층학회논문집
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• 제8권3호
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• pp.229-234
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• 2019

This report introduces the structural design of Hibiya Mitsui Tower built in Tokyo Midtown Hibiya. The upper part of this tower is used for offices and the lower portion is for commercial facilities and a cinema complex which need the large open spaces. The 192m-high building has 35 floors above ground and 4 below ground. The structure is a steel frame using CFT columns to feature the high-performance oil dampers and the buckling restrained braces for vibration control. First, an outline of the structural design of this building is presented. Second, we introduce the transfer frame adopted to realize the large open spaces in the lower part, and the long column supporting the corner part of the high-rise building to avoid making a shade on the adjacent Hibiya Park, which are the feature of this building. Finally, we present an outline of the latest highly efficient semi-active oil dampers adopted in this building, and the vibration responses of this tower.

• 한국정밀공학회지
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• 제14권8호
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• pp.57-64
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• 1997

The process design of backward and forward extrusion of axisymmetric part has been studied in this paper. The important factors of cold forging process with complex geometry are the design of initial billet shape, the possibility of forming by one-stage operation and the determination of preform shapes, etc. Based on the systematic procedure of process sequence design, the forming operation of cold forged part is analyzed by the commercial finite element program, DEFORM. The design criteria are forming load, geo- metrical filling without defect and a sound distribution of effective strain in final product. It is noted that one step of preform operation is required to obtain the final product. Numerical result is compared with experi- mental one. It is found that the analyzed result is in good agreement with actual forming result.

• 한국중재학회지:중재연구
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• 제17권1호
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• pp.97-116
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• 2007

This article has the objective of studying French ADR System which is unique and peculiar in the world. Nowadays commercial conflict is resolved by litigation or ADR. ADR plays an important part in resolving commercial conflict in the US, England, Germany, Japan and France. Untill now, only French ADR System has not been studied at all in Korea. So we can safely say that it is necessary to research into French ADR System in order to improve Korea's ADR System. This study is composed of Introduction, Concept of French ADR System, Actual Circumstances of French ADR System and Conclusion. The Fundamental system of French ADR is the law of February 8, 1995 that is made up of 82 articles. Among these articles, Judical Conciliation and Mediation are the most important. It is universally admitted by most of legal scholars that judicial conciliation and mediation have the character of contract. Because mutual consent is necessary in order for judicial conciliation and mediation to be effective. French system of judicial conciliation and mediation is provided in French Civil Procedure Law. Judicial conciliation plays an important role in Labor Law and Family Law. In the early part of litigation, the attempt of consiliation can be made very frequently in France. Successful conciliation and mediation are induced into negociation between parties. Arbitration has its long history in Europe. In the medieval times, Western European merchant began to use Arbitration System. After the medieval times had passed, Arbitration System took root in France. But Arbitration System has not so developed in France. On the other hand, Arbitration System has developed to a considerable degree in the US in spite of its short history. It is due to the fact that the French dislike to have recourse to litigation as compared with the Americans. However Arbitration can resolve securities conflict through various institutions in France, which is very similar to the concerned US phenomenon.