• Title/Summary/Keyword: open-situation

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Survey on the Automation of Laying Hen Houses and Farmers' Awareness of its Significance (산란계농가의 자동화계사 시설실태 및 의식조사 연구)

  • Choe, Hui-Cheol;Seo, Ok-Seok;Lee, Deok-Su;Han, Jeong-Dae
    • Journal of Animal Environmental Science
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    • v.2 no.2
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    • pp.103-110
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    • 1996
  • This survey was conducted to investigate the situation of three types of laying hen houses and farmers' awareness of farm automation. Six windowless, three high-rising windowless and four open-sided laying hen houses were surveyed to compare their characteristics, and sixty farmers answered questionnaires. 1. Population density of laying hen was 13.9 birds/m^2$ in open-sided, 28.9 birds/m^2$ in high-rising windowless, and 44.9 birds/m^2$ in windowless laying hen houses. 2. Feeder space was $12{\sim}13.5cm$ in open-sided laying hen houses, but feeder space of windowless and high-rising hen houses was narrower than that of open-sided laying hen houses. 3. Thermal resistance values were $14.6{\sim}18.7\;m^2\;{\circ}C/W$ in wall, #22.0{\sim}23.7\;m^2\;{\circ}C/W$ in roof of windowless and high-rising windowless laying hen houses but the wall of open-sided laying hen houses was only $1.9\;m^2\;{\circ}C/W$. 4. Maximum ventilation capacity was 0.161{\sim}0.326$ cmm/bird in summer. Minimum rate of tunnel Ventilation laying hen houses in winter was $0.013{\sim}0.040$ cmm/bird, but minimum rate of crossflow and high-rising windowless laying hen houses was larger than that of tunnel ventilation houses. 5. One person managed about 8,100 birds in open-sided, and about 23,500 birds in windowless and high-rising windowless laying hen houses. 7. 90.7% of farmers responsed that they want to construct automatized laying hen houses in the future.

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A Study on the Development and Adaption of Open Innovation Analysis Model (특허기반 개방형 혁신 분석 모델 개발 및 적용 연구)

  • Yun, Jin-Hyo Joseph;Kwon, Oh-Jin;Park, Jin-Seo;Jeong, Eui-Seob
    • Journal of Korea Technology Innovation Society
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    • v.13 no.1
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    • pp.99-123
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    • 2010
  • We develop Open Innovation Analysis Method in the Patent analysis field and applies it to analyze Deagu-Gyung-buk Cases. After Chesbrough researches the open innovation situation about U. S. company Cases, many researchers began to study about Open Innovation of Companies. And Hippel participated in User Innovation research about Medical equipments and extreme sporting equipments. He pointed out that user innovation occurred new products. I call it User based Open Innovation. But the methods for Open Innovation are limited such as Case study, Survey analysis, and Quality study. So, we need to develop objective analysis method for open innovation of any firm. In this study, we want to develop new objective analysis method for open innovation and apply it to analyze rocal cases and global comparative studies. We will develop the Chesbrough's patent analysis method about open innovation.We apply this new open innovation analysis method to analyze medical equipment and fuel cell industries in Daegu and Gyung-buk Province. faembedded structure of the cooperative research network of innovation We also will apply this method to analyze Samsung and Nokia Mobile industry, and Hyundae and Toyota automobile industry.

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Type Classification and Shape Display of Brazing Defect in Heat Exchanger (열교환기 브레이징 결함의 유형 분류 및 형상 디스플레이)

  • Kim, Jin-Young
    • Journal of Institute of Control, Robotics and Systems
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    • v.19 no.2
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    • pp.171-176
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    • 2013
  • X-ray cross-sectional image-based inspection technique is one of the most useful methods to inspect the brazing joints of heat exchanger. Through X-ray cross-sectional image acquisition, image processing, and defect inspection, the defects of brazing joints can be detected. This paper presents a method to judge the type of detected defects automatically, and to display them three-dimensionally. The defect type is classified as unconnected defect, void, and so on, based on location, size, and shape information of defect. Three-dimensional display which is realized using OpenGL (Open Graphics Library) will be helpful to understand the overall situation including location, size, shape of the defects in a test object.

The Strength Evaluation of Reinforced Flaw by Stiffener in Woven Fiber Reinforced Composite Plates (섬유강화 복합재료에서 결함의 보강재에 의한 강도 평가)

  • 이문철;최영근;이택순
    • Journal of Ocean Engineering and Technology
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    • v.8 no.1
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    • pp.96-104
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    • 1994
  • The use of advanced composite materials has grown in recent years in aerospace and other structures. Out of various kinds of repairing methods the one selecteh for this study is an idealized case which simulates a situation where a damaged laminate has been repaired by drilling a hole and therefter plugging the hole with reinforcement. Two typesof reinforcement are investigated ;adhesively bonged plug reinforcement or snug-fit unbonded plug in the hole. For each case of reinforcement, four different sizes of hole diameter and three types of reinforcing material(steel, aluminum, plexiglass) are employed for investigation. The experiment are mainloy forced on the evaluation of ultimate strength of laminate with reinforced hole in comparison to its counterpart with the open hole.

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A Fundamental Study for Development of a Pepper Harvester (고추수확기 개발을 위한 기초연구)

  • Lee, C.H.;Park, S.J.;Kim, C.S.;Rhee, J.Y.;Kim, Y.H.
    • Journal of Biosystems Engineering
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    • v.18 no.2
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    • pp.110-121
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    • 1993
  • Pepper has been the second important income source of Korean farmer. Provided the agricultural market in Korea is opened, pepper of which price is more than three times of the world market price can not survive with current cultivation practice. Pepper harvesters have been developed in some countries but, they are not feasible in Korea due to difference of varieties, cultivation practice and climate between Korea and other countries. This is a fundamental study to develop a pepper harvester suitable to the current situation in Korea. Physical properties of a pepper plant and its fruit were investigated. Also, a pair of open helices was selected as a pepper removing mechanism and tested to determine the best operating conditions. This study revealed that a pepper harvester with more than 90% of pepper recovery is attainable. Best rotating speed of open helices with 30cm diameter and conveying velocity of pepper main stem were determined to be 180 rpm and 0.1 m/s respectively.

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(An) analysis of quantum cryptography vulnerability by Binary merge (이진 병합에 의한 양자암호 취약성)

  • Rim, Kwang-Cheol;Choi, Jin-Suk
    • Journal of the Korean Institute of Intelligent Systems
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    • v.20 no.6
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    • pp.837-842
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    • 2010
  • In this paper, quantum cryptography systems used in the design process inevitably open bit stream of pseudo-random number that exists multiple open channels between them and the need to share information on the part of the situation exposes a pair of bit stream. In this paper, the base test of pseudo-random number I tested out this process and the merge bit binary column look out for randomness.

A study on the Organizing Principle of Hwaeomsa Temple in Chiri Mountain - Focused on the Theory of Feng-Shui(Configuration of the Ground) - (지리산(智異山) 화엄사가람(華嚴寺伽藍)의 조영사상(造營思想)에 관(關)한 연구(硏究) -풍수사상을 중심(中心)으로-)

  • Lee, Dongyoung;Choi, Hyoseung
    • Journal of the Korean Institute of Rural Architecture
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    • v.2 no.3
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    • pp.77-84
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    • 2000
  • Kurye-gun, which Hwaeomsa temple is located, has huge scale's geographical characteristics, such as mountains, rivers and open fields. This is really blessing area because of Som-jin river at the bottom of Ghiri mountain and open fields, which this situation is very difficult. The location of Hwaeomsa temple is an end of The Baek-Doo Mountains and very important spot(where influences to its geometric converge) of the theory of feng-shui. On exposure logic of the Korean traditional theory of feng-shui, the organization in Ga-Ram of Hwaeomsa temple is inconsistent with representative theory and analyzing system. So, this is one of successful examples with the theory of feng-shui because exhalation from the earth and water was organized well with accuracy.

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Development of Open Type Scaffolding Foothold for Material Vertical Transport (자재 수직 운반용 개방형 비계발판 개발)

  • Kim, so-young;Kim, geun-yeong;Jang, Myunghoun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2021.05a
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    • pp.32-33
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    • 2021
  • When materials are to be transported vertically at the construction site, if the space is small, there is often a precarious situation in which materials are transported outside the scaffold or through the space secured by removing the safety footrest. In addition, if the safety foothold is removed, the reinstallation may not occur due to carelessness of a worker. To solve the problem of this particular case, we have created a safety foothold that is unnecessary to dismantle and can be opened.

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A Comparative Study on the Mutual Influence between Institutional Mechanisms and Trust in Online Platform Environment (온라인 플랫폼 환경에서 제도적 메커니즘과 신뢰 간 상호 영향에 관한 비교 연구)

  • YoonHo Roh;Yeong-Hyeon Hwang
    • Journal of Information Technology Services
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    • v.23 no.2
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    • pp.83-97
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    • 2024
  • This study was conducted to examine the effect of institutional mechanisms on customers' trust and continuous purchase intention in open market platforms, The research frame was expanded by setting institutional situations into positive and negative areas in order to examine the relationship between institutional mechanisms and trust in multiple dimensions. The results of this study confirmed that the feedback system, dispute resolution, and intermediary trust factors affect trust in positive areas, and dispute resolution, information security, and intermediary trust affect buyer trust in negative areas. For the relationship between trust and repurchase intention, it was confirmed that if the institutional situation is positive, trust leads to repurchase intention, and in negative areas, trust does not lead to repurchase intention. The results of this study show that institutional mechanisms are a key factor in building trust in online platforms according to institutional circumstances and play a role in offsetting trust in platforms in negative areas.

Development of a Limit Order Book Analysis Tool for Automated Stock Trading Systems

  • Gyu-Sang Cho
    • International Journal of Internet, Broadcasting and Communication
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    • v.16 no.3
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    • pp.363-369
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    • 2024
  • In this paper, we develope a LOB(Limit Order Book) analyzing tool for an automated trading system, which features real-time and offline analysis of LOB data in conjunction with execution data. The 10-tier LOB data analyzer developed in this paper, which contains ask/bid prices and the execution data, receivs transaction requests in real-time from the Kiwoom Open API+ server. In the OnReceiveTrData event, the transaction data from the server is received and processed. The real-time data, triggered by the transaction, is received and processed in the OnReceiveRealData event. These two types of data are stored in a database and replayed in the same way as if it were a real-time situation in simulation mode. The LOB data are selectively read and analyzed in a necessary time points. The tool provides various features such as bar chart analysis and pattern analysis of the total shares on the bid side and ask side, which are used to develop a tool to accurately determine the timing of stock trading.