• 디지털산업정보학회논문지
• /
• 제6권3호
• /
• pp.211-219
• /
• 2010

This paper designs the dynamic symbol automatic trading system in Korean option market. This system is based on Multichart program which is convenient and efficient system trading tool. But the Multichart has an important restriction which has only one constant symbol per chart. This restriction causes very useful strategies impossible. The proposed design uses global variables, signal chart selection and position order exchange. So an automatic trading system with dynamic symbol works on Multichart program. To verify the proposed system, BS(Buythensell)-SB(Sellthenbuy) strategies are tested which uses the change of open-interest of stock index futures within a day. These strategies buy both call and put option in ATM at start candle and liquidate all at 12 o'clock and then sell both call and put option in ATM at 12 o'clock and also liquidate all at 14:40. From 23 March 2009 to 31 May 2010, 301-trading days, is adopted for experiment. As a result, the average daily profit rate of this simple strategies riches 1.09%. This profit rate is up to eight times of commision price which is 0.15 % per option trade. If the method which raises the profitable rate of wining trade or lower commission than 0.15% is found, these strategies make fascinated lossless trading system which is based on the proposed dynamic symbol automatic trading system.

• 동력기계공학회지
• /
• 제6권2호
• /
• pp.24-32
• /
• 2002

A program is developed to analyze and design the frequency and rigidity of the corrugated plates with various corrugation shapes (the considered corrugation shapes are triangular and trapezoidal) and 36 kinds of boundary conditions using smeared theory. The system is consisted of input, solution and output routines, and its routine is made up pull-down menu type and run in Window basis using Visual Basic Language. The input routine helps the design engineers to make the input data user-friendly. The solution routine uses the homemade solver. In the output routine, automatic designs can be done using AutoCAD and Intent Tool package by interfacing the input data.

• 한국공작기계학회논문집
• /
• 제14권5호
• /
• pp.55-61
• /
• 2005

In this paper, we propose the visual simulation system for virtual reality motion rider system. The visual simulation system can apply verity virtual reality system. This paper deals with programs on 3D automatic creation of terrain, road design, and a realtime rendering program for the virtual reality system. For the 3D automatic creation of terrain, DEM data and rectangular grid method are applied. We can make two different road object with the road design program. One of them includes road definition, and the other is obtained by using 'NURBS curve.' Visual simulation is consisted by additional modeling and real-time rendering. We can apply the programs made in this way to visual system of driving simulator.

• 한국측량학회지
• /
• 제11권2호
• /
• pp.89-100
• /
• 1993

본 연구는 CAD와 LISP(LIST Processing)을 이용한 도로노선 결정에 있어서의 토공량 산정에 관한 연구이다. 컴퓨터의 비약적인 발전과 산업분야에서의 이용증대는 CAD/CAM/CAE 기술의 발전으로 이어져 자동설계 및 자동제작을 가능케 하고 있으며 또한 토목설계의 자동화도 꾸준히 추진되어 오고 있는 실정이다. 이러한 자동화 작업의 일환으로 본 연구에서는 도로노선 결정시 각 노선의 토공량 산정을 자동화하여 토목설계업무의 효율성을 높이고자 하였다. 연구의 방법으로 지형도에 DTM(Digital Terrain Model) 개념을 도입하여 지형정보를 자동독취할 수 있도록 프로그램화 한 후 이 데이타를 가지고 LISP 언어를 이용하여 체계적인 알고리즘을 만든 후 CAD 시스템과 접목시켜 종·횡단 면적과 토공량을 산정해서 유토곡선을 출력하는 자동설계 시스템을 시험적으로 구축하는 데 그 목적을 두고 있다.

• Journal of Mechanical Science and Technology
• /
• 제18권11호
• /
• pp.1923-1931
• /
• 2004

Manufacturing of complex surface plates in stern and stem is a major factor in cost of a preliminary ship design by computing process. If these hull plate parts are effectively classified, it helps to compute the processing cost and find the way to cut-down the processing cost. This paper presents a new method to classify surface plates effectively in the preliminary ship design using neural network. A neural-network-based ship hull plate classification program was developed and tested for the automatic classification of ship design. The input variables are regarded as Gaussian curvature distributions on the plate. Various applicable rules of network topology are applied in the ship design. In automation of hull plate classification, two different numbers of input variables are used. By observing the results of the proposed method, the effectiveness of the proposed method is discussed. As a result, high prediction rate was achieved in the ship design. Accordingly, to the initial design stage, the ship hull plate classification program can be used to predict the ship production cost. And the proposed method will contribute to reduce the production cost of ship.

• 한국전산구조공학회:학술대회논문집
• /
• 한국전산구조공학회 2003년도 봄 학술발표회 논문집
• /
• pp.305-312
• /
• 2003

Recently, with a progressive development of hardware of computer, the internet and network technology, the environment of construction varies rapidly due to increase the complex form in structure shape and system. With variations, the CAD system for design and products also varies from 2D system to 3D system. This study mainly deals with the methodology of automatic connection design of 3D CAD system, steel connection system (XSteel) using macro. First, using design program in the steel connection system, Xsteel, the joint connection macro will be made up and established the detail classes of design. The next, Database Program (Converter Program) related to the general structural analysis program (MIDAS) and the steel connection program (Xsteel) is constructed for data interface between two programs. From this study, if the merits of 3D CAD system and converter program are utilized well, it is expected that the time needed in modeling and the amounts due to material loses decrease gradually.

• 한국CDE학회논문집
• /
• 제4권2호
• /
• pp.79-86
• /
• 1999

A general approach to automatic generation of triangular meshes on three-dimensional surfaces is presented in this paper. The approach, developed with emphasis on program generality and interface with CAD/CAM systems, is based on the double mapping method and the looping method. The double mapping method is introduced and anew splitting scheme is proposed for the looping method employed for triangular mesh generation on the parametric domain. Several application examples are given.

• 한국자동차공학회논문집
• /
• 제4권6호
• /
• pp.205-215
• /
• 1996

In this paper, the performance analysis of the vehicle with the Ravigneaux type automatic transmission has been carried out using information of engine and drivetrain. It is necessary to understand the overall system including engine, torque converter, clutch, planetary gears, and road load. The equations of motion are derived from dynamic model. The GUI computer simulation program has been developed to analyze the powertrain performance of the vehicle with the Ravigneaux type automatic transmission.

• 정보과학회 컴퓨팅의 실제 논문지
• /
• 제24권1호
• /
• pp.33-39
• /
• 2018

현재 국방시뮬레이션 분야에서 통합시험을 위해 각각의 실 장비 및 모의기(Simulator)들 자체 로깅정보는 자동화가 되어있다. 통합시험시스템의 특이사항은 시험일지로 작성하고 있지만, 자동화가 되어 있지 않아 여전히 운용자의 수기작성 또는 파일작성에 의존하고 있어, 기록 내용 부실 및 동일 내용 반복작성 등 비효율적인 면이 존재한다. 본 논문에서는 이러한 문제점들을 해결하기 위해 자동 시험일지 기록 프로그램을 제안하고자 한다. 자동 시험일지 기록프로그램은 프레임워크 기반 기술을 활용해 시험일지에 기록해야 할 정보를 운용통제컴퓨터와 운용자로부터 수신 받아 일지를 기록해준다. 자동 시험일지 기록프로그램이 운용자의 반복적인 시험내용을 안정적으로 기록할 수 있게 한다. 또한, 시험 운용인원이 제한적이어도 운용자가 통합시험에만 집중할 수 있도록 효율성을 높여주었다.

• 한국의상디자인학회지
• /
• 제14권1호
• /
• pp.81-96
• /
• 2012

The purpose of this study is to provide fundamental information for standardization of 3D body measurement. This research analyzes errors occurring in the process of extracting body size from 3D body scan data. First, as a result of analyzing basic state of the 3D body scanner's calibration, the point number of each section was almost the same, while the right and left as well as the front and back coordinates of the center of gravity are not, showing unstable data. Nevertheless, the latter does not influence on the size of cylinder such as width and circumference. Next, we analyzed point coordinates variations of scan data on a mannequin nude by life casting. The result was great deflection in case of complicated or horizontal sections including the reference point beyond proper distance from centers of four cameras. In case of the mannequin's size, accuracy proves comparatively high in that measurement errors in height, width, depth, and length dimension occurred all within allowable errors, only except chest depth, while there were a lot of measurement errors in a circumference dimension. Secondly, analysis of accuracy of automatic extraction identification program algorithm presented that a semi-automatic measurement program is better than an automatic measurement program. While both of them ate very acute in parts related to crotch, they are not in armpit related parts. Therefore, in extracting of human body size from 3D scan data, what really matters seems to parts related to armpits.