• Title/Summary/Keyword: exit cost

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Fishery Exit Model under Individual Transferable Quota System : An Inquiry into the Economic Efficiency Achievement in Fishery (수산자원 ITQ 하에서의 어업퇴출모형)

  • Park, Hojeong;Jang, Heesun
    • Environmental and Resource Economics Review
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    • v.18 no.1
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    • pp.1-22
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    • 2009
  • The primary purpose of ITQ (individually transferable quota) is to reduce the overcapitalization problem in the open-access fishery. It has been argued that the least cost-efficient vessels under ITQ may exit first from the fishing by selling their quotas, thereby also reducing the excess capital. The purpose of this paper is to provide a case when ITQ may prompt the exit of less cost-inefficient vessels in the presence of irreversible exit cost which is proportional to the cost-inefficiency. Real option model is adopted in order to analyze the source of hysteresis associated with fishery exit decision. By linking the interaction between vessels' adjustment costs, cost-efficiency of harvest and uncertainty of fishery return, we show that cost-inefficient vessels will not exit always first from the fishery in contrast to the conventional wisdom. Relevant policy implications is discussed.

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Effect of Reducing and Increasing Factors in Relationship Conflict on Relationship Exit in the Relationship Between Auto Parts Supplier and Buyer (자동차부품 공급업체와 구매업체의 관계에서 관계갈등 감소요인과 증대요인이 관계이탈에 미치는 영향)

  • Pyun, Hae-Soo
    • Journal of Arbitration Studies
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    • v.31 no.4
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    • pp.99-117
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    • 2021
  • In this study, the effect of reducing and increasing factors in relationship conflict on the relationship exit between auto parts suppliers and buyers was analyzed based on transaction cost theory and relational exchange theory. As a result of the hypothesis test, Hypothesis 1, which states that relationship commitment will hurt relationship exit, and Hypothesis 3 that replacement will harm relationship exit were supported. In addition, Hypothesis 2 which states that transaction-specific investment will positively affect relationship exit was not supported. The theoretical and practical implications of this study are as follows. This study has identified the antecedents of relationship exit by comprehensively applying the transaction cost theory and relational exchange theory. In addition, this study can identify what a company should manage specifically to lower conflict and relationship exit by identifying the antecedents of relationship exit. The limitations of this study and the directions for future studies are as follows. First, not all of the antecedents of relationship exits between auto parts suppliers and buyers have been extensively investigated in the viewpoint of the transaction cost theory and relational exchange theory. In the future, it is necessary to identify additional factors. Second, the study was conducted only from the supplier's viewpoint. In future studies, it is expected that more accurate research results can be obtained by simultaneously examining the supplier's point of view and the buyer's point of view.

A Study on Exit Burr Formation in Face Milling (페이스 밀링 가공시 출구버 형성에 관한 연구)

  • Han, Sang-Woo;Ko, Sung-Lim
    • Journal of the Korean Society for Precision Engineering
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    • v.19 no.8
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    • pp.55-62
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    • 2002
  • A burr has been defined as undesirable projection of material formed as the result of plastic flow from a cutting or shearing operation. It is unavoidable in all kinds of machining operation. As a result, burr makes troubles on manufacturing process due to deburring cost, quality of products and productivity. In face milling operation, burrs are formed along five edges on the workpiece. In this study, the primary interest is about exit burr The influence of the cutting parameters on the formation of exit burrs in face milling will be described experimentally. Using the results of experimental study, burr types are classified according to appearance and formation mechanism in exit burr. The burr formation mechanism in each type of burr is suggested. Data bases are developed to predict burr formation result.

Impact of Changes in Medical Aid Status on Unmet Need and Catastrophic Health Expenditure: Data from the Korea Health Panel

  • Kim, Woo-Rim;Nam, Chung-Mo;Lee, Sang-Gyu;Park, So-Hee;Kim, Tae-Hyun;Park, Eun-Cheol
    • Quality Improvement in Health Care
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    • v.25 no.2
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    • pp.44-55
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    • 2019
  • Purpose: To investigate whether changes in Medical Aid (MA) status are associated with unmet need and catastrophic health expenditure (CHE). Methods: Data from the 2010 to 2014 Korea Health Panel (KHP) were used. The impact of changes in annual MA status ('MA to MA,' 'MA to MA Exit,' 'MA Exit to MA,' and 'MA Exit to MA Exit') on unmet need (all-cause and financial) and CHE (10% and 40% of household capacity to pay) were examined using the generalized estimating equation (GEE) model. Analysis was conducted separately for MA type I and II individuals. Results: In 1,164 Medical Aid type I individuals, compared to the 'MA to MA' group, the 'MA to MA Exit' group had increased likelihoods of all-cause and financial unmet need. This group also showed higher likelihoods of CHE at the 10% standard. The 'MA Exit to MA Exit' group showed increased likelihoods at the 10% and 40% CHE standards. In 852 type II recipients, the 'MA to MA Exit' group had higher likelihoods of CHE at the 10% standard. Conclusions: Type 1 MA exit beneficiaries had higher likelihoods of all-cause and financial unmet need, along CHE at the 10% standard. Type I 'MA Exit to MA Exit' beneficiaries also showed higher likelihoods of CHE at the 10% and 40% standards. In type II recipients, MA exit beneficiaries had higher likelihoods of CHE at the 10% standard. The results infer the importance of monitoring MA exit beneficiaries as they may be vulnerable to unmet need and CHE.

Development of optimal process planning algorithm considered Exit Burr minimization on Face Milling (Face Milling에서 Exit Burr의 최소화를 고려한 최적 가공 계획 알고리즘의 개발)

  • 김지환;김영진;고성림;김용현;박대흠
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.1816-1819
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    • 2003
  • As a result of milling operation, we expect to have burr at the outward edge of workpiece. Also, it causes undesirable problems such as deburring cost, low quality of machined surface, and bottleneck in manufacturing process. Though it is impossible to totally remove burr in machining, it is necessary to plan a machining process that minimizes the occurrence of burr. In this paper, a scheme is proposed which identifies the tool path of the milling operation with minimum burr. In the previous research, a Burr Expert System was developed where the feature identification, the cutting condition identification, and the analysis on exit burr formation are the key steps in the program. The Burr Expert System predicts which portion of workpiece would have the exit burr in advance so that we can calculate the burr length of each milling operation. Here, the critical angle determines whether the burr analyzed is an exit burr or not. So the burr minimization scheme becomes to minimize the burr with critical angle. By iterating all the possible tool paths in certain milling operation, we can identify the tool path with minimum burr.

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A Study on Burr Formation in Face Milling(II) (페이스 밀링 가공시 버형성에 관한 연구 (II))

  • 한상우;고성림
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2000.11a
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    • pp.810-813
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    • 2000
  • Burr makes trobles on manufacturing process due to deburring cost, quality of products and productivity. This paper described the results of experimental study on the influence of the cutting parameters on the formation of exit burrs in face milling. The cutting parameters were investigated changing exit angle, rake nagle , lead angle in tool geometry as well as feed per tooth. Also we carried out experimets on several materials. Using the result of experimental study, burr types are classified according to appearance and formation mechanism in exit burr and we are considered the burr formation in each type of burr.

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Development of Expert System for Burr Formation Prediction in Face Milling (밀링가공시 버 형성 예측을 위한 Expert System 개발)

  • 고성림;김영진;고대철;한상우;이제열;안용진
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2000.05a
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    • pp.717-720
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    • 2000
  • Burr makes troubles on manufacturing process due to of deburring cost, quality of products and automation. This paper described the results of experimental study on the influence of the cutting parameters on the formation of exit burrs in face milling. Using the results of experimental study, we classified the burr type and developed data bases to predict burr formation result. This program will be used to predict burr type and geometry at a specified location. Simulation results on deformation strain and temperature are also available. Also algorithm which calculate the exit angle is proposed.

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Geometrical Analysis on the Formation Mechanism of Milling Burr on Arbitrary Feature (임의형상의 버 발생 메카니즘의 기하학적 해석)

  • 이제열;안용진;김영진
    • Korean Journal of Computational Design and Engineering
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    • v.6 no.4
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    • pp.222-228
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    • 2001
  • In the milling operation, the burr can be generated on the intersection of cutting tool and workpiece. Due to burr formation, we expect lower efficiency in the operation and the cost increase. In order to understand the burr formation mechanism in the milling operation on the arbitrary feature, we developed an algorithm to analyse and predict the exit burr formation mechanism. Firstly, the recognition of arbitrary shaped workpiece was done through the CAD data. This data includes point information on the vertices of the workpiece. Secondly, tile CAM data regarding tool geometry, tool path, cutting speed, and material data are retrieved to simulate the actual cutting process. Thirdly, we predict the exit burr formation on the edge of workpiece based on the geometric analysis. Lastly, an algorithm implemented in the Windows environment to visualize the burr formation simulation. With this information, we can predict which portion of workpiece would have the exit burr in advance so that we call manage to find a way to minimize the edit burr formation in the actual cutting.

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A Study on the Remote Control for Exit Sign Using High Efficiency LED (고효율 LED를 이용한 유도등의 원격제어에 관한 연구)

  • 백동현;홍석표
    • Fire Science and Engineering
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    • v.16 no.2
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    • pp.1-7
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    • 2002
  • In the normally, exit sign is always lighting on status by the connected to normal electrical source. So, there are happened to rise of the economical cost such as power consumption, maintenances and repair replacement of lamp etc. This paper are study on the new exit sign circuits by using high efficiency LED that is available for remote control and reduceible to power consumption, maintenance cost by the way of compensation fluorescent and incandescent lamps. As a results on the study, exit sign lamp is capable of control and supervisory in trigger angle by the remote control switch, widely and easily. And then, the response time was very fast in 600〔$\mu$s〕and also it can be find that the rising and fall time of oscillate circuit is maximum 200〔ns〕 as high sensitively. Finally, it obtain to the result that reducible of electrical power consumption and not required for replacement of lamp by using the high efficiency LED lighting source.

IoT Enabled Smart Emergency LED Exit Sign controller Design using Arduino

  • Jung, Joonseok;Kwon, Jongman;Mfitumukiza, Joseph;Jung, Soonho;Lee, Minwoo;Cha, Jaesang
    • International journal of advanced smart convergence
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    • v.6 no.1
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    • pp.76-81
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    • 2017
  • This paper presents a low cost and flexible IoT enabled smart LED controller using Arduino that is used for emergency exit signs. The Internet of Things (IoT) is become a global network that put together physical objects using network communications for the purpose of inter-communication of devices, access information on internet, interaction with users as well as permanent connected environment. A crucial point in this paper, is underlined on the potential key points of applying the Arduino platform as low cost, easy to use microcontroller with combination of various sensors applied in IoT technology to facilitate and establishment of intelligent products. To demonstrate the feasibility and effectiveness of the system, devices such as LED strip, combination of various sensors, Arduino, power plug and ZigBee module have been integrated to setup smart emergency exit sign system. The general concept of the proposed system design discussed in this paper is all about the combination of various sensor such as smoke detector sensor, humidity, temperature sensor, glass break sensors as well as camera sensor that are connected to the main controller (Arduino) for the purpose of communicating with LED exit signs displayer and dedicated PC monitors from integrated system monitoring (controller room) through gateway devices using Zig bee module. A critical appraisal of the approach in the area concludes the paper.