• 제목/요약/키워드: Determination of main dimension

검색결과 7건 처리시간 0.018초

수치고도모형을 이용한 본류하천길이에 관한 프랙탈 차원의 해석 (The Analysis of Fractal Dimension on the Main-Stream Length using Digital Elevation Model)

  • 차상화
    • 한국환경과학회지
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    • 제11권9호
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    • pp.915-923
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    • 2002
  • Recently, GIS(Geographic Information System) is used to extract various hydrological factors from DEM(Digital Elevation Model) in river basin. Therefore, this study aims at the determination of river fractal dimension using DEM. In this paper, the main-stream length in river basin was grid-analyzed for each scale(1/5,000, 1/25,000, 1/50,000) and each cell size(5m$\times$5m, l0m$\times$l0m, 20m$\times$20m, 30m$\times$30m, 40m$\times$40m, 50m$\times$50m, 60m$\times$60m, 70m$\times$70m, 80m$\times$80m, 90m$\times$90m, 100m$\times$l00m, 120m$\times$120m, 150m$\times$150m) using GIS. Also, fractal dimension was derived by analyzing correlation among main-stream lengths, scale, and cell size which were calculated here. The result of calculating fractal dimension for each cell size shows that the fractal dimension on the main-stream length is 1.028.

딥러닝을 이용한 연안 소형 어선 주요 치수 추정 연구 (A study on estimating the main dimensions of a small fishing boat using deep learning)

  • 장민성;김동준;자오양
    • 수산해양기술연구
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    • 제58권3호
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    • pp.272-280
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    • 2022
  • The first step is to determine the principal dimensions of the design ship, such as length between perpendiculars, beam, draft and depth when accomplishing the design of a new vessel. To make this process easier, a database with a large amount of existing ship data and a regression analysis technique are needed. Recently, deep learning, a branch of artificial intelligence (AI) has been used in regression analysis. In this paper, deep learning neural networks are used for regression analysis to find the regression function between the input and output data. To find the neural network structure with the highest accuracy, the errors of neural network structures with varying the number of the layers and the nodes are compared. In this paper, Python TensorFlow Keras API and MATLAB Deep Learning Toolbox are used to build deep learning neural networks. Constructed DNN (deep neural networks) makes helpful in determining the principal dimension of the ship and saves much time in the ship design process.

PARAMETRIC MAIN DIMENSION FIXING OF MEDIUM SIZED BULK CARRIERS

  • LEE KWIJOO;KIM KYOUNG HWA;KARL ISAACS
    • 한국해양공학회:학술대회논문집
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    • 한국해양공학회 2004년도 학술대회지
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    • pp.73-78
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    • 2004
  • For the preliminary stages of ship design it is necessary to develop a basic design, which specifies the main particulars of the vessel. based on the requirements given by the owner. An efficient design enables the shipyard to make a rough estimate of the construction costs and to put forward a favourable quote during the call for tenders. The parametric determination of the main particulars of the vessel involves the application of empirical formulae. These formulae have been created after detailed tests and research by maritime research institutions and researchers had been carried out. Here, the design of a medium sized Bulk Carrier (26000t dwt) with a service speed of 17 knots for carrying rice and rock phosphate has been illustrated. Medium sized Bulk Carriers (25,000t dwt - 50,000t dwt) are in steady demand among small shipping companies. They have a size advantage, in that port size restrictions do not affect their design tremendously. Nevertheless, structurally. they are one of the most difficult to build. During design, the rules of the maritime regulatory bodies were strictly adhered to.

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자동차 프레스공정의 자동검사/계측시스템 (Automated Inspection/Measuring System for Automotive Press Line)

  • 정원;신현명;박종락
    • 한국경영과학회지
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    • 제16권2호
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    • pp.79-79
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    • 1991
  • This paper presents an automated visual inspection/measuring system for the door inner panel manufacturing process. The main objective of this research is to develop inspection applications with a machine vision system related to the determination or quantification of parameters such as dimension, shape, quality of surfaces, number of holes in a panel, and presence or absence of specific features. For quality measurements, we showed a subpixel image processing technology that will improve the consistency of results and level of precision. Also presented is a data analysis method th detect process shifts so that corrective action can be undertaken before more defective units are manufactured.

자동차 프레스공정의 자동검사/계측시스템 (Automated Inspection/Measuring System for Automotine Press Line)

  • 정원;신현명;박종락
    • 경영과학
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    • 제16권2호
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    • pp.79-92
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    • 1999
  • This paper presents an automated visual inspection/measuring system for the door inner panel manufacturing process. The main objective of this research is to develop inspection applications with a machine vision system related to the determination or quantification of parameters such as dimension, shape, quality of surfaces, number of holes in a panel, and presence or absence of specific features. For quality measurements, we showed a subpixel image processing technology that will improve the consistency of results and level of precision. Also presented is a data analysis method th detect process shifts so that corrective action can be undertaken before more defective units are manufactured.

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Determination of Factors in Cultural Dimensions and SERVQUAL Model Affecting the Corporate Image of Pharmacy Retail Stores

  • KLONGTHONG, Worasak;THAVORN, Jakkrit;WATCHARADAMRONGKUN, Suntaree;NGAMKROECKJOTI, Chittipa
    • The Journal of Asian Finance, Economics and Business
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    • 제7권10호
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    • pp.875-884
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    • 2020
  • Thailand has a rapidly growing pharmaceutical sector, which is the eighth largest in the Asia-Pacific region and one of the largest and most developed among the Association of Southeast Asian Nations (ASEAN) countries. This study examines how to provide the most appropriate approach to enhance Thailand's pharmaceutical services to dispense medicine to end consumers. The main objective is to determine the most appropriate corporate image for Thai Pharmacy Retail Stores (PRSs) for entering the ASEAN market community. An exploratory mixed-method design characterized by qualitative and quantitative phases of data collection and analysis and the linking of data from these two separate data strands was adopted to conduct an in-depth interview with pharmacists and the owner of pharmacy retail stores as well as 405 respondents who had visited a pharmacy retail store and interacted with pharmacists during the previous year. The multiple linear regression (MLR) was applied to analyze the relative influences of perceived service quality and the cultural dimension on the corporate image. Findings reveal that the perceived service quality and cultural dimension contribute 50% towards the corporate image, and the perceived service quality had more effect than cultural dimension. This study mainly focuses on PRSs in Thailand, while the findings show other analyses concerning how to successfully create and promote an effective PRS image for ASEAN markets.

삼대록계 국문 장편소설에 나타난 가족치료양상 연구 - 보웬의 이론에 근거하여 - (Three-generation stories of the Joseon Dynasty, A Study on the Aspects of Family Therapy)

  • 이희수
    • 동양고전연구
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    • 제49호
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    • pp.393-430
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    • 2012
  • 이 논문에서는 보웬의 가족치료 이론의 관점에서 삼대록계 국문 장편소설의 서사를 분석하였다. 보웬은 가족 내에서 문제를 일으키는 개인의 행동을 설명함에 있어 자기분화와 불안이라는 두 변인을 사용하였는데 이들 작품에서 문제나 갈등이 표출된 가정의 경우, 문제의 중심에 자아 미분화된 인물이 존재하였다. 자아가 미분화된 인물들은 적장자 위주의 가족 관계에서 소외될 때 극도로 불안감을 느꼈으며, 불안을 해소하고 가족 관계에서 자신의 입지를 확고히 하기 위해 자아 미분화된 인물들끼리 연대의식을 강하게 발휘하였다. "소현성록"과 "조씨삼대록" 연작의 가정 내 문제 발생의 구조와 양상은, '자아 미분화된 어머니와 자아 분화된 아들, 자아 분화된 어머니와 자아 미분화된 아들, 자아 미분화된 어머니와 자아 미분화된 아들'로 세분화할 수 있다. 서사 전개 방식에 있어 이들 간의 공생 관계 성립과 미성립, 치료자의 존재 양상 등이 달랐으며, 그에 따라 자결하는 아들, 처형당하는 아들, 회개를 통해 거듭나는 아들로 나뉘어졌다. 서술상의 전개나 구조는 무엇보다 치료자 존재 유무에 따라 달라졌다. 자아 미분화된 어머니와 자아 미분화된 아들의 경우, 가족 내에 치료자가 존재함으로써 가족문제는 해결되고, 문제를 일으킨 아들은 회개하여 거듭나는 아들이 된다. 그러나 자아 미분화된 어머니와 자아 분화된 아들, 자아 분화된 어머니와 자아 미분화된 아들은 가정 내 치료자 부재로 각각 아들이 자결하고 처형되는 비극이 빚어졌다. 이처럼 보웬의 가족 치료 이론을 적용하여 삼대록계 국문 장편소설을 분석했을 때 가정에서 발생한 갈등이나 문제에 대해 개인의 차원이 아니라 가족 간의 관계 차원에서 조망이 가능하였다. 즉 가정 내의 심각한 갈등과 문제는 어느 한 개인의 인성이나 욕망이 아니라 가족 제도 자체에 근본 원인이 있었다. 그리고 가족 치료자의 유무에 따라 서사의 전개 양상이 크게 달라졌는데 그의 역할에 따라 나머지 가족의 안위와 평화 여부가 결정됨으로써 삼대록계 국문 장편소설에서 남성의 수신은 중요한 서사축을 형성하고 있음도 알 수 있었다. 이처럼 삼대록계 국문 장편소설 속의 문제 상황을 한 개인의 욕망 혹은 인성에 국한하지 않고 가족 전체의 차원에서 살피고 심리학적 외재적 접근을 통하여 삼대록계 국문 장편소설의 주요 서사인 여성수난담의 배경에 대해 접근한 것에 의의를 두고자 한다.