• Title/Summary/Keyword: Computer program.

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Computer Simulation Program for Central Limit Theorem - Dynamic MS Excel Program -

  • Choi, Hyun-Seok;Kim, Tae-Yoon
    • Journal of the Korean Data and Information Science Society
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    • v.16 no.2
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    • pp.359-369
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    • 2005
  • Central limit theorem is known as one of the most important limit theorem in statistics and probability. This paper provides a dynamic MS Excel program that demonstrates computer simulation of various types of central limit theorems. Our result will be of great use for better understanding of central limit theorems.

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A Study of Variables and Subject to the Restrictions using the Program of Simplex Method (단체법중 프로그램을 이용한 변수와 제약조건에 관한 연구)

  • 고용해
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.3 no.3
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    • pp.49-53
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    • 1980
  • Computer program about the simplex method -one of the most popularity used linear programming- has been studied. Variable and subject to the restriction are growing according to the growing of all of the problem. In this paper, the problem that can be solved by simplex method may be processed with enormous block unit ( $50\;{\times};\50$ ). Because of using computer all of the problem can be solved more accurately and quickly. In appendix, computer program and running example are recorded.

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Strategy to parsing Table about Event Information for integrated digital broadcasting environment (통합 디지털 방송 환경을 위한 Program Event에 대한 정보를 포함하는 Table의 통합 parsing 기법)

  • Shin, Yun-ho;Lee, Hyuk-Joon;Kim, Jung-sun
    • Proceedings of the Korea Information Processing Society Conference
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    • 2010.11a
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    • pp.855-858
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    • 2010
  • 여러 표준이 존재하는 디지털 방송 환경에서 각 표준별로 Electronic Program Guide(EPG)를 얻기 위한 Program Event에 대한 정보를 포함하는 Table 파싱 기법이 다르다. 이를 해결하고 통합 디지털 방송 환경을 만들기 위해서 XML 파일을 이용한 테이블 통합 파싱 기법을 제안한다.

Inelastic vector finite element analysis of RC shells

  • Min, Chang-Shik;Gupta, Ajaya Kumar
    • Structural Engineering and Mechanics
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    • v.4 no.2
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    • pp.139-148
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    • 1996
  • Vector algorithms and the relative importance of the four basic modules (computation of element stiffness matrices, assembly of the global stiffness matrix, solution of the system of linear simultaneous equations, and calculation of stresses and strains) of a finite element computer program for inelastic analysis of reinforced concrete shells are presented. Performance of the vector program is compared with a scalar program. For a cooling tower problem, the speedup factor from the scalar to the vector program is 34 for the element stiffness matrices calculation, 25.3 for the assembly of global stiffness matrix, 27.5 for the equation solver, and 37.8 for stresses, strains and nodal forces computations on a Gray Y-MP. The overall speedup factor is 30.9. When the equation solver alone is vectorized, which is computationally the most intensive part of a finite element program, a speedup factor of only 1.9 is achieved. When the rest of the program is also vectorized, a large additional speedup factor of 15.9 is attained. Therefore, it is very important that all the modules in a nonlinear program are vectorized to gain the full potential of the supercomputers. The vector finite element computer program for inelastic analysis of RC shells with layered elements developed in the present study enabled us to perform mesh convergence studies. The vector program can be used for studying the ultimate behavior of RC shells and used as a design tool.

A Study on the Curriculum and Computer Program Subjects in Department of Architecture-related (국내 건축분야 학과의 현황과 컴퓨터 과목에 대한 조사연구)

  • Nam, Yun-Cheol
    • Journal of The Korean Digital Architecture Interior Association
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    • v.13 no.2
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    • pp.27-34
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    • 2013
  • According to current digital and information society, architecture related departments in universities give and educate computer courses to train top-level human resources suiting the needs of the time. The aim of this study is to curriculum of architecture related departments and to use the references for curriculum organization by understanding computer courses for architecture related departments. The results are as follows: (1) There are 100 departments (28.2%) in the field of architecture and 130 departments including an academic system that is the most departments. Also, there are 86 departments (39.8%) in the field of architecture engineering and 117 departments including an academic system. There are 77 departments in the field of interior architecture, which contain 48 departments (62.3%) of two- or three-year bachelor course college. (2) Department in the field of architecture opens a program study course in the second year of the program that is the most courses had been opened. First, most departments selected an order of learning a structure/detail construction techniques of architecture and design skills such as a foundation system and expression of the structure by hand in the first grade and processing it using a computer in the second grade. (3) BIM was opened in only three departments of 31 departments surveyed and was opened in a senior class. The reasons of still lack of BIM are the compatibility deficit of partners such as building structure, building equipment, securing lecturer, and still the dominant point of CAD in the field. (4) Six departments of 31 departments surveyed did not open a program study course as a major. That is to say, it is learned in a basic course or basic liberal arts education requirements (information area) of each department, or in an own program of each department. (5) The program study is only a means to create architectural drawings in department of the field of architecture. Thus, we should remember not only the drawing through the program but also drawing up a floor plan after understanding of methods such as constructional methods, detail drawing, and expression.

Volume Control using Gesture Recognition System

  • Shreyansh Gupta;Samyak Barnwal
    • International Journal of Computer Science & Network Security
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    • v.24 no.6
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    • pp.161-170
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    • 2024
  • With the technological advances, the humans have made so much progress in the ease of living and now incorporating the use of sight, motion, sound, speech etc. for various application and software controls. In this paper, we have explored the project in which gestures plays a very significant role in the project. The topic of gesture control which has been researched a lot and is just getting evolved every day. We see the usage of computer vision in this project. The main objective that we achieved in this project is controlling the computer settings with hand gestures using computer vision. In this project we are creating a module which acts a volume controlling program in which we use hand gestures to control the computer system volume. We have included the use of OpenCV. This module is used in the implementation of hand gestures in computer controls. The module in execution uses the web camera of the computer to record the images or videos and then processes them to find the needed information and then based on the input, performs the action on the volume settings if that computer. The program has the functionality of increasing and decreasing the volume of the computer. The setup needed for the program execution is a web camera to record the input images and videos which will be given by the user. The program will perform gesture recognition with the help of OpenCV and python and its libraries and them it will recognize or identify the specified human gestures and use them to perform or carry out the changes in the device setting. The objective is to adjust the volume of a computer device without the need for physical interaction using a mouse or keyboard. OpenCV, a widely utilized tool for image processing and computer vision applications in this domain, enjoys extensive popularity. The OpenCV community consists of over 47,000 individuals, and as of a survey conducted in 2020, the estimated number of downloads exceeds 18 million.

Development of Portfolio Computer Program for Efficient Household Financial Program: Comparison between Korea & U.S.A. (가계재무관리의 효율성을 높이기 위한 포트폴리오 구성 및 프로그램 개발 : 한미간 비교)

  • Lee, Seung-Sin;Bae, Mi-Kyeong;Fan, Jessie
    • Journal of the Korean Home Economics Association
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    • v.41 no.9
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    • pp.105-120
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    • 2003
  • This study has conducted to develop the computer program for households portfolio management to enhance their financial well-being. The study has divided into two parts. First, descriptive statistics has used to analyze as a basis of computer program and it includes the comparison of household asset allocations between households in Korea and U. S. A., Second, it shows the components of the portfolio program developed to manage households efficiently. For both two countries, recent four years data has been used and in part two, total sample size of households in Korea is 2155. From the statistical analysis, households in U. S. A. tend to invest more on the stock & bonds as their net-asset is increased. However households in Korea tend to have less financial assets and it might be found the fact that they prefer to own real-estate because of the inflation. In the part of computer program, it is included the average financial asset responding to the demographic variables and households could refer those average amount as a reference planning their asset portfolio.

A Development of Program on the Hydraulic Calculation in Sprinkler System Based on the Piping Network Analysis Method (배관망 해석 방법을 이용한 스프링클러 시스템의 수리계산 프로그램 개발)

  • 송철강;이명호;강계명
    • Fire Science and Engineering
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    • v.16 no.1
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    • pp.24-29
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    • 2002
  • The purpose of this study is developing the computer program for hydraulic design sprinkler systems have performed the means for the general use of network analysis method. The computer program is based on the theoretical concepts of the related Hazen-Williams equations, a modified Bernoulli equations, and the Hardy Cross method of pipe network analysis. Looped piping calculations are solved by using either the Hardy Cross method or the other iteration methods. While the other methods are solved using simultaneous equations, the Hardy Cross method is concerned with one loop at a time using reiterative process. Due to its simplicity the Hardy Cross method will be the primary method described in this thesis. The purpose of this study is to develope hydraulic calculation program by using algorithm for network analysis method. The development of computer program for the hydraulic design of sprinkler systems will perform the means in the performance-based sprinkler system design.

Development of Computer Program for Design of the Small Annular Linear Induction EM Pump (소형 환단면 선형유도전자펌프 설계를 위한 전산 프로그램 개발)

  • Kim, H.R.;Nam, H.Y.;Hwang, J.S.
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2002.05b
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    • pp.137-140
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    • 2002
  • EM(ElectroMagnetic) pump is used for the purpose of transporting liquid sodium coolant with electrical conductivity in the LMR(Liquid Metal Reactor). In the present study, computer program for the pilot annular linear EM pump has been developed for the maximum flowrate with 200 l/min and maximum developing pressure with 3 bar. Firstly, Balance equation is induced by the equivalent circuit method which is commonly employed to analyze linear induction machines and the calculation of the hydraulic pressure drop. Then, design equation is converted to the computer program and optimum pump variables are determined by this code. The code is verified by the comparative analysis with the characteristic of the commercialized pump.

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Efficient Script-File based Profiling for Web Attack Detection (스크립트 파일 기반의 효율적인 웹 공격 탐지 프로파일링)

  • Im, Jong-Hyuk;Park, Jae-Chul;Kim, Dong-Kook;Noh, Bong-Nam
    • Proceedings of the Korean Information Science Society Conference
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    • 2006.10c
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    • pp.511-514
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    • 2006
  • 비정상행위 탐지를 위한 프로파일 기술은 침임탐지시스템의 성능 향상을 위한 핵심기술로서, 높은 공격 탐지율과 침입탐지시스템의 수행 시간 단축을 위해 반드시 요구되는 기술이다. 최근 인터넷의 보급과 활성화로 웹 어플리케이션 보안을 위한 연구가 활발히 진행되고 있으나, 웹 애플리케이션의 개발 언어와 공격 특성을 반영하지 못해 그 효율성이 저하되고 있다. 본 논문에서는 웹 공격 탐지를 위해 연구 되었던 서열정렬 알고리즘을 이용한 웹 공격 탐지의 성능 개선을 위하여 웹 애플리케이션 개발에 주로 사용되는 스크립트파일을 기반으로 한 프로파일 방법을 제안하고 실험 결과를 기술하였다.

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