• 대한의용생체공학회:의공학회지
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• 제11권2호
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• pp.257-268
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• 1990

A system has been developed for monitoring the effect of neuromuscular blocking frugs and the neuromuscular function during anesthesia and surgery. This system is composed of software and hardware, the latter are nerve stimulator, force transducer, interface board(preamplifier, filter, peripheral input/output) and personal computer (apple ll) , the former are programmed in ASSEMBLY and BASIC language. The nerve stimulator which is controlled by personal computer is capable of delivering single shocks at o.)Hz, train of four at 2Hz and tetanic stimulation at 30, 100, 200Hz. The response, adduction of the thumb, is sensed by the force transducer. The output of the force transducer Is amplified, filtered, converted digital signal and then processed by the per- sonal computer. The personal computer quantia4es twitch and traln of four tesponse and calculates the 74 ratio (Ta/Tl )between the first and fourth response of train of four. This ratio is used to estimate the level of the neuromuscular block. This system has reaserch potential for determining the effect of newer neuromuscular blocking drugs for comparlsion with presently used drugs of alternatively, for delerminig the effects of blocking drugs in altered physilogical states.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 학술회의 논문집 정보 및 제어부문 B
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• pp.968-970
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• 2003

Fuzzy Controller is a system that displays a person's thoughts using membership function and IF-THEN rules. With the help of specialists' knowledge, rule bases can be explained in easy language. Furthermore Fuzzy Controller has strong resistance against turbulence. Its performance is especially prominent when targets cannot be measured in mathematic methods because the fuzzy controller can measure the output using only the relations between the input and output. But Fuzzy System has a problem that is calculation speed. I suggest you a theory to solve it. I applied a theory to inverted pendulum. Because it is represent of nonlinear system.

• 한국통신학회:학술대회논문집
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• 한국통신학회 1991년도 추계종합학술발표회논문집
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• pp.69-72
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• 1991

This paper proposes an efficient algorithm that constructs 3 dimensional solid object from orthographic views. The 3D object construction algorithm inputs vertices and edges information of 3 orthogonal views, generates 2 dimensional surfaces of input views, 3 dimensional possible vertices, possible edges and possible surfaces, compares 2 dimensional projections of 3 dimensional possible surface with two dimensional surfaces from orthogonal views and then determines the solution. This algorithm has been proved to be efficient in reducing the time taken and is useful for CAD system, 3 dimensional scene analysis system and object modellings for 3D graphics. The algorithm has been implemented in C language on the IBM PC/AT.

• 한국문헌정보학회지
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• 제6권
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• pp.53-70
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• 1979

This is to report the objectives, planning and the process of the establishment of an on-line information retrieval system in Korea. The model is the case of the Library of the Korea Institute of Science and Technology (KIST) which is the multi-disciplinary contract research organization in science and technology. The report explains the objectives and the step by step process such as input materials, analysis of the materials, structure of the data base files, indexes, command language, and the process, technique and logic of information retrieval. A brief comparison is made with other systems such as OCLC and BALLOTS and the authors gave various illustrations and samples to clarify the processes. The authors regrets that they could not give any detailed information on the budget or the cost accrued so far.

• 해양환경안전학회지
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• 제1권2호
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• pp.83-94
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• 1995

The purpose of this paper is to develop an integrated environment system for finite element structural analysis using OOA(Object-Oriented Analysis) and OOD(Object-Oriented Design), with may reduce inconveniencies in use such as file input of macro command and improve lacks of graphic presentation in the established finite element analysis program. This paper is attempted to suggest an easy approach to object-oriented concept and convenient programming. Two languages are used together in this paper instead of single C++ language for the development of object-oriented program. : Visual Basic with CDK(Custom Development Kit), and Borland C++ with OWL(Object Windows Library).

• 한국환경과학회지
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• 제14권10호
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• pp.929-935
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• 2005

The Monitoring System developed in this study was designed to help manage the recreational forests by gathering data on visitors' profiles and their opinions about recreational use and related facilities, This data could identify for changing situations in forest recreation demand as well as providing information on planning the management and use of the forest areas in advance. The standardized questionnaire had contained visitor profiles, activities, distribution of use by area, distribution us by time, duration of the visit, expenditure of visitors and information on visitor satisfaction and motivation. Also, the questionnaire had included the evaluations visitors' perception of facilities in order to identify the importance and performance of the various facilities, such as recreational and educational facilities, accomodations, directional signs as well as infrastructure. The monitoring system was developed in the object-oriented programming (OOP) environment. Microsoft Visual Basic 6,0 for the program language, Microsoft Access, and Excel program were used to develop the system. The monitoring system was composed of data input, database, and data analysis system, Once data were put into data input system, it automatically transferred to database, and it eventually produced the results of statistical analysis with one step procedure. This study was integrated with facilities and visitor monitoring system to identify the visitor impact at the recreational forests. In addition, this monitoring system would provide necessary and useful background information for management on recreational use of natural resources in a practical manner.

• 한국정밀공학회지
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• 제16권12호
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• pp.230-238
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• 1999

This paper describes a research work of developing computer-aided design of lead frame, semiconductor, with blanking operation which is very precise for progressive working. Approach to the system is based on the knowledge-based rules. Knowledge for the system is formulated from plasticity theories, experimental results and the empirical knowledge of field experts. This system has been written in AutoLISP on the AutoCAD using a personal computer and in I-DEAS Drafting Programming Language on the I-DEAS Master Series Drafting with Workstation, HP9000/715(64) and tool kit on the ESPRIT. Transference of data among AutoCAD, I-DEAS Master Series Drafting, and ESPRIT is accomplished by DXF(drawing exchange format) and IGES(initial graphics exchange specification) methods. This system is composed of six modules, which are input and shape treatment, production feasibility check, strip-layout, die-layout, modelling, and post-processor modules. The system can design process planning and Die design considering several factors and generate NC data automatically according to drawings of die-layout module. As forming process of high precision product and die design system using 2-D geometry recognition are integrated with technology of process planning, die design, and CAE analysis, standardization of die part in die design and process planning of high pression product for semiconductor lead frame is possible to set. Results carried out in each module will provide efficiencies to the designer and the manufacturer of lead frame, semiconductor.

• 한국지리정보학회지
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• 제11권3호
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• pp.1-12
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• 2008

본 연구에서는 다양한 수문 모형에 적용을 위한 입력자료 도출 기반을 마련하고자 보다 편리하고 체계적인 유역특성자료 분석시스템을 개발하였다. PRMS 모형을 이용하여 유출분석 수행시 입력자료 생성을 위해 사용되는 USGS WEASEL을 참고하여 시스템 개발항목을 도출하고, 체계적이고 효율적인 시스템 개발 및 유지관리를 위하여 UML을 이용한 객체지향 시스템을 설계하였다. 또한, 편리한 사용자 인터페이스 제공 및 다양한 수질 수문 모형에 적용하기 위하여 GIS 컴포넌트 기반인 ArcGIS ArcObjects를 이용하여 유역특성자료 분석시스템을 개발하였다.

• 대한전기학회논문지:전력기술부문A
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• 제48권11호
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• pp.1457-1463
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• 1999

This paper develops an real-time expert system for the electronic interlocking system. it obtains the higher safety by determining the railway interlocking strategy in order to prevent trains from colliding, and derailing in the viewpoint of veteran expert, considering the situation of station in real-time. The expert system determines the real-time interlocking strategy by confirming the interlocking relationships among signal facilities based on the interlocking knowledge base from input information such as signal, points, and it is implemented as the rule-based system in order to represented accurately and effectively the interlocking relationships. Especially in case of emergency the function which determines the rational route coordinating with IIKBAG on the workstation is designed in order to minimize the spreading effect. It is implemented in C computer language for the purpose of the implementation of the inference engine using the dynamic memory allocation technique, the build and interface of the station structure database. And, the validity of the built expert system is proved by simulating the diversity cases which may occur in the real system for the typical station model.

• 한국농림기상학회지
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• 제20권3호
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• pp.243-251
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• 2018

작물 생산량의 시 공간적 분석은 정책입안자와 이해관계자들에게 중요한 정보를 제공할 수 있으나, 이를 위해서는 공간적 기상자료를 처리하고 이에 맞추어 작물 모형을 구동할 수 있는 작업들이 필요하다. 이에 따라 DSSAT (Decision Support System for Agrotechnology Transfer)을 기반으로 지역내 작물 생산성 자료를 생산할 수 있는 자동화 시스템을 개발하고자 하였다. 이 시스템은 전문적인 컴퓨터 프로그래머가 아니더라도 사용가능한 R과 shell script를 기반으로 개발되었다. 먼저, 격자형 기상자료의 각 격자에 해당하는 정보를 텍스트 형식의 기상 입력자료 형식으로 변환하는 기능을 가지는 모듈을 작성하였다. 다음으로 R 패키지를 사용하여 GIS자료 처리와 병렬 처리기능이 구현된 R script을 작성하였다. 또한, 작물 모델을 자동으로 구동하는 기능을 shell script를 사용하여 구현하였다. 사례 연구로, 미국 Illinois 주에서 콩의 최대 수량을 얻을 수 있는 재배관리 조건의 공간적인 분포를 파악하고자 하였다. 개발된 도구를 통해 AgMERRA 자료로부터 Illinois 주의 1981 - 2005년 까지의 기상입력자료를 생산하였다. 해당 지역에서 1개의 CPU 코어를 사용하여 1년간의 자료를 처리하기 위해 7.38 시간이 걸렸으나, 병렬처리를 통해 16개의 CPU 코어를 사용하였을 때 처리 시간이 크게 줄어, 35분만에 처리가 가능하였다. 이렇게 생산된 기상 입력자료들을 작물 모형 자동 구동 시스템에 활용하여 해당 지역에서의 최대 수량과, 최대 수량을 가지는 성숙군 및 파종일 지도를 작성할 수 있었다. 특히, 본 연구에서 개발된 도구는 DSSAT 모델뿐만 아니라 국내에서 사용되는 다른 작물모델들에게 적용될 수 있어 공간적 작물 생산성 평가에 도움을 줄 수 있을 것으로 보인다.