• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2004년도 추계 학술발표회 제16권2호
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• pp.493-496
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• 2004

The change of creep deformation mechanism due to the persistent change of stress conditions requires the constitutive relation for the analysis of long tenn behaviors considering age dependent material properties of concrete. In the present research, the process of time dependent behaviors in structure is divided into two stages; the non-mechanical deforming level which causes creep and shrinkage deformations, and the mechanical deforming level which causes mechanical deformations by the restraints of non-mechanical deformations due to internal or external factors. The incremental constitutive relation is derived by expanding the total stress-strain relation on the present time, with respect to the reference time using the Taylor series, and the modulus of elasticity in early ages of concrete was defined thru this process.

• 대한디지털의료영상학회논문지
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• 제13권3호
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• pp.127-132
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• 2011

This is to improve the complicate process of the existing CD copy flow in Department of Radiology. It is also to improve the medical service of the hospital to secure private information of patients. Survey: The patients who ask for CD copies in the Department of Radiology of this hospital(for 6 months in 2010). Time: Comparing the total amount of time of the previous and the modified CD copy flow. Using the SPSS 12.0 program for testing significance of independent two-samples t-test. Private information: Introducing the identification-system based on the medical law to supplement the security of personal information of patients. There was manifold complaints due to receipt and issuing the prescription in Admission and Discharging office and outpatient department. The time has been approximately 50% reduced from 70 mistunes to 32 mistunes due to simplifying the routes. The security of the personal information has been supplemented by let patients submit documentary evidence based on the medical law. The service in the hospital has been improved as a result of simplifying the whole process of the routes and receipt process. Therefore, the each stage of waiting time has been decreased. In addition, the personal information of the patients has been more secured.

• 한국학교보건학회지
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• 제25권2호
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• pp.143-146
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• 2012

Purpose: The purpose of this study was to review the academic development of school health system and projects implemented in Korea since 1945. Methods: This study analyzed and reviewed literatures to find out the process of the development of school health system and projects implemented in Korea. Results: The history of school health in Korea since 1945 could be divided into three periods according to the development of school health system and projects; countermeasure period (1945-1969), support period (1970-1999), and innovation period (2000~). The major school health system and projects were focused on the health screening and prevention, health management and support, and health promotion for each period. Conclusion: School health system in Korea has been set successfully due to school health law(1967) and school meal law(1981), and various countermeasure, support, and innovation projects had implemented during last 60 years.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2008년도 추계 학술논문 발표대회
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• pp.151-154
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• 2008

In today's agriculture, there has been an increase in the construction of agricultural facilities due to the need to maximize land usage and many customer demands for products. But many agricultural facilities are constructed by not qualified construction company so it often causes many accidents like breakdowns and repairs. this study is to understand the construction process of agricultural facilities. The results of this research are that greenhouse is lack of the law of contract and the performance and need for the construction process supervision. Vinyl House is needed to supervise the design of the structure.

• 반도체디스플레이기술학회지
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• 제22권4호
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• pp.108-112
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• 2023

Precision manufacturing technology is rapidly developing due to the extreme miniaturization of semiconductor processes to comply with Moore's Law. Accurate and precise alignment, which is one of the key elements of the semiconductor pre-process and post-process, is very important in the semiconductor process. The center detection of wafer align marks plays a key role in improving yield by reducing defects and research on accurate detection methods for this is necessary. Methods for accurate alignment using traditional image sensors can cause problems due to changes in image brightness and noise. To solve this problem, engineers must go directly into the line and perform maintenance work. This paper emphasizes that the development of AI technology can provide innovative solutions in the semiconductor process as high-resolution image and image processing technology also develops. This study proposes a new wafer center detection method through variable thresholding. And this study introduces a method for detecting the center that is less sensitive to the brightness of LEDs by utilizing a high-performance object detection model such as YOLOv8 without relying on existing algorithms. Through this, we aim to enable precise wafer focus detection using artificial intelligence.

• 한국산업보건학회지
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• 제22권1호
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• pp.26-31
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• 2012

Objectives: To review the occurrence of cancer cluster in S Electronics semiconductor factories, process of epidemiological researches and lawsuit for industrial accident compensation. Methods: Occupational Safety and Heatlh Research Institute (OSHRI) epidemiological research report, Seoul National University (SNU) field survey report and Seoul Administrative Court ruling were investigated. Result:: OSHRI denied the association between working environment and outbreak of cancers, but SNU survey team reported that carcinogens do exist in workplace and the workers are exposed to them. Seoul Administrative Court ruled that 2 victims got cancer due to hazardous chemicals in working environment and be compensated but 3 victims were not acknowledged. Conclusions: Procedure of current OSHRI epidemiological research should be reassessed by the purpose of Occupational Accident Compensation Insurance Law.

• 대한산업공학회지
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• 제32권2호
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• pp.141-152
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• 2006

This paper presents the development of a decision model to examine the optimal repair action for a deteriorating system. In order to make a reasonable decision, it is necessary to perform an analysis of the uncertainties embedded in deterioration and to evaluate the repair actions based on the expected future cost. Focusing on the power law failure model, the uncertainties related to deterioration are analyzed based on the Bayesian approach. In addition, we develop a decision model for the optimal repair action by applying a repair cost function. A case study is given to illustrate a decision-making process by analyzing the loss incurred due to deterioration.

• 무역상무연구
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• 제57권
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• pp.61-78
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• 2013

The purpose of this study is to clarify the standard of fair and equitable treatment. Although most international investment treaties prescribe fair and equitable treatment that is the obligation to provide fair and equitable treatment to foreign investor, there is no clear definition and specific elements of fair and equitable treatment. Through the arbitral award cases we can find that tribunals have interpreted to include six principles; Due process & Protection from denial of justice, Good faith, Reasonableness & Nondiscrimination, Compliance with contractual obligation, Full protection and security, Transparency & Protection of the investor's legitimate expectations. This study suggest that host countries and investors focus on international trends concerning investment disputes in order to avoid future disputes. So future disputes can be prevented and prepared in advance.

• 무역상무연구
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• 제72권
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• pp.115-137
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• 2016

Trade can be greatly influenced by the change of international trade environment due to the characteristics of remote transactions. Furthermore, in the circumstance of emphasizing the national security again, the importance of the risk management of special materials has been increasing. As it was noted at Chapter 4, significant results such as the threat of enterprises' sustainable growth can be occurred when companies are related to the unlawful export of strategic materials or experience discouragement of export of main products. As the decision of strategic materials greatly depend on a specialized knowledge there is a possibility of misjudgement of strategic materials in terms of ordinary companies which is not accustomed to them. Furthermore risk management is more difficult due to the inclusion to the items of export license. To prepare such a risk of export of strategic materials, firstly, it should be checked to find whether counter traders are working in the industry which is not related to the spread of weapons of mass destruction, secondly, an appropriate process shall be designed and operated for products to be safely delivered to the trade counter. Therefore, our export enterprises have to introduce CP(Compliance Program), AEO or ISO28000 considering suitability for their actual situations not only to promote export and but also to avoid risk of export control and additional expenses. Through these appropriate processes, an efficient and effective management of the trade risk of strategic materials can be accomplished.

• 한국중재학회지:중재연구
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• 제27권3호
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• pp.53-76
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• 2017

Korean businesses, and their legal representatives, have observed the improvements of enforcement of commercial judgments through arbitration over traditional collections litigation in U.S. Courts-due to quicker proceedings, exceptional cost savings and more predictable outcomes-in attaching assets within U.S. jurisdictions. But how are the 2016 interim measures implemented by the Arbitration Act of Korea utilized to avoid jurisdictional and procedure pitfalls of enforcement proceedings in the Federal Courts of the United States? Authors examine the necessary prerequisites of the U.S. Federal Arbitration Act as adopted through the New York Convention, to which Korea and the U.S. are signatories, as distinguished from the Panama Convention. Five common U.S. arbitration institutions address U.S. "domestic" disputes, preempting U.S. state law arbitrations, while this article focuses on U.S. enforcement of "international" arbitration awards. Seeking U.S. recognition and enforcement of Korean arbitral awards necessitates avoiding common defenses involving due process, public policy or documentary formality challenges. Provisional and conservatory injunctive relief measures are explored. A variety of U.S. cases involving Korean litigants are examined to illustrate the legal challenges involving non?domestic arbitral awards, foreign arbitral awards and injunctive relief. Suggestions aimed toward further research are focused on typical Korean business needs such as motions to confirm foreign arbitration awards, enforce such awards or motions to compel arbitration.