• Title/Summary/Keyword: Transfer of Risk

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Reliability Assessment in Hea-nam Cheju HVDC system using Well-being Method (Well-being기법을 이용한 해남-제주간 HVDC System신뢰도평가)

  • Son, Hyun-Il;Lee, Hyo-Sang;Shin, Dong-Joon;Kim, Jin-O
    • Proceedings of the KIEE Conference
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    • 2004.11b
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    • pp.227-229
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    • 2004
  • In a new competitive market environment, it is very important to determines how much power can be transferred through the network. It's known as Available Transfer Capability(ATC). This paper presents a technique to evaluate Reliability Assesment and the Available Transfer Capability of Haenam-Cheju HVDC transmission system using Well-being Method which is based on the probabilistic method. The system Well-being is categorized in terms of the system Healthy and Marginal in addition to the conventional Risk index. Haenam-Cheju HVDC system has been studied for the optimal ATC based in well-being categories.

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Disease Occurrence in Transgenic Rice Plant Transformed with Silbene Synthase Gene and Evaluation of Possible Horizontal Gene Transfer to Plant Pathogens

  • Yu, Sang-Mi;Jeong, Ui-Seon;Lee, Ha Kyung;Baek, So Hyeon;Kwon, Soon Jong;Lee, Yong Hoon
    • Research in Plant Disease
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    • v.20 no.3
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    • pp.189-195
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    • 2014
  • Genetic engineering is being used to enhance disease resistance and nutritional value of crops including rice plant. Considering the fast-growing agricultural biotechnology and rapidly increasing global area of transgenic crops, the risk evaluation on environment is necessary. In this study, we surveyed the difference of disease occurrence between transgenic rice variety, Iksan526 transformed with peanut stilbene synthase gene and non-transgenic rice varieties, Dongjin and Nampyeong in the field. Moreover, the possibility of gene transfer from transgenic rice to bacterial and fungal pathogens was investigated. The results of this study indicated that there was no significant difference in the occurrence and severity of the diseases between Iksan526 and Dongjin or Nampyeong. In addition, the results suggested that rice pathogen, such as Xanthomonas oryzae pv. oryzae, Rhizoctonia solani and Magnaporthe grisea did not take up stilbene synthase and bar genes under natural conditions. Moreover the transformed DNA was not transferred to the pathogens even in repetitive contacts.

Dosimetric Evaluation of an Automatically Converted Radiation Therapy Plan between Radixact Machines

  • Lee, Mi Young;Kang, Dae Gyu;Kim, Jin Sung
    • Progress in Medical Physics
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    • v.31 no.4
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    • pp.153-162
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    • 2020
  • Purpose: We aim to evaluate the accuracy and effectiveness of an automatically converted radiation therapy plan between Radixact machines by comparing the original plan with the transferred plan. Methods: The study involved a total of 20 patients for each randomly selected treatment site who received radiation treatment with Radixact. We set up the cheese phantom (Gammex RMI, Middleton, WI, USA) with an Exradin A1SL ion chamber (Standard Imaging, Madison, WI, USA) and GAFCHROMIC EBT3 film (International Specialty Products, Wayne, NJ, USA) inserted. We used three methods to evaluate an automatically converted radiation therapy plan using the features of the Plan transfer. First, we evaluated and compared Planning target volume (PTV) coverage (homogeneity index, HI; conformity index, CI) and organs at risk (OAR) dose statistics. Second, we compared the absolute dose using an ion chamber. Lastly, we analyzed gamma passing rates using film. Results: Our results showed that the difference in PTV coverage was 1.72% in HI and 0.17% in CI, and majority of the difference in OAR was within 1% across all sites. The difference (%) in absolute dose values was averaging 0.74%. In addition, the gamma passing rate was 99.64% for 3%/3 mm and 97.08% for 2%/2 mm. Conclusions: The Plan transfer function can be reliably used in appropriate situations.

Spontaneous ovarian hyperstimulation syndrome following a thawed embryo transfer cycle

  • Kim, Mi Kyoung;Won, Hyung Jae;Shim, Sung Han;Cha, Dong Hyun;Yoon, Tae Ki
    • Clinical and Experimental Reproductive Medicine
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    • v.41 no.3
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    • pp.140-145
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    • 2014
  • This article reports a case of spontaneous ovarian hyperstimulation syndrome (OHSS) following a thawed embryo transfer cycle. OHSS, a potentially life-threatening condition, is an iatrogenic complication of controlled ovarian stimulation; therefore, it is very important to prevent and treat OHSS during treatment with ovulation-inducing agents. Despite our efforts to prevent OHSS, in this case, severe spontaneous OHSS occurred, which resulted in uncontrolled preterm labor and a preterm delivery and also persisted for 6 weeks after delivery. Freezing all embryos cannot entirely prevent the development of OHSS because OHSS can occur spontaneously. Although spontaneous OHSS remains a rare event, females with a history of OHSS may have an elevated risk for spontaneous OHSS. We suggest closely monitoring cases of pregnancy following thawed embryo transfer for early diagnosis of spontaneous OHSS and the use of conservative management.

Gradational Risk Management in Procurement Phase for Plant Projects (플랜트 프로젝트의 구매조달 단계별 리스크 분석에 관한 연구)

  • Na, Sung-Yub;Moon, Seung-Jae;Yoo, Hoseon
    • Plant Journal
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    • v.5 no.3
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    • pp.59-65
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    • 2009
  • In the plant EPC project, the procurement work can be considered as the most important part that affects the success or failure of project as it has the closest mutual influence in every execution process of the project. Procurement takes up generally 60% ~ 70% of the entire project budget and the current trend of plant EPC project becoming larger in scale and a variety of process technology being applied. So, it is needed to identify the risks that are expected to occur according to the stages of procurement work, namely, proposal stage, manufacturer selection and purchasing agreement stage, expediting the process management of manufacturer stage, inspection stage and logistics & transportation stage. The management of observation and control of the risks should be performed with the response techniques which are 'avoid',' transfer'and' mitigate'.

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Development of Discharge Model and Preventive Diagnosis Program for Discharge Risk Assessment of Charged Human Body (대전인체의 방전위험성 평가를 위한 모델 및 예방진단 프로그램 개발)

  • 김두현;김상철;고은영
    • Journal of the Korean Society of Safety
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    • v.13 no.3
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    • pp.80-87
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    • 1998
  • This paper presents a study on the development of discharge model and computer program for assessing the risk of electrostatic discharge(ESD) of charged human body This ESD event is modelled as a two-body problem using spherical conductors, simulating the approach of a charged conductor (human body) to a second conductor (electronic equipment). The charge/discharge process for the model is formulated as a matrix of equations by Maxwell's method. Body potentials, energies and the charge transfer during a discharge are calculated. The developed program, based on the suggested scheme in this paper, is applied to a sample system. The results provide a better understanding of ESD event and demonstrate the usefulness of two-body model in practical applications.

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A Study on the Operation of SURF in the Bolero System (볼레로 시스템상의 SURF의 운영에 관한 연구)

  • Jeon, Soon-Hwan
    • The Journal of Information Technology
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    • v.6 no.4
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    • pp.163-175
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    • 2003
  • SURF is a compliance engine, checking document content against detail in an established agreement. It provides a single vehicle for handling documentary trade settlement, regardless of the risk profile and financing requirements of the parties involved. That is, SURF, a Value Added Service connected to the Core Messaging Platform, is a documentary trade settlement service. It offers users of the system automated document compliance checking and a tool to manage the workflow in connection with documentary trade settlement. The Service supports varying degrees of risk transfer between buyer, sellers and banks and supports transactions from open account to more complex Letters of Credit.

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A Study on the Natural Wind Measurement to Assess the Risk of Train Overturn due to the Strong Wind (강풍 시 열차전복위험도 평가를 위한 자연풍 측정에 관한 연구)

  • Kwon, Hyeok-Bin;Nam, Seong-Won;You, Won-Hee;Hong, You-Na
    • Proceedings of the KSR Conference
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    • 2006.11b
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    • pp.123-129
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    • 2006
  • The measurement method of natural wind to understand the characteristics of the natural wind along the railway lines in Korea has been investigated to be used in the assessment of the risk of train overturn. The weather information service provided by Korea Meteorological Administration has been employed to outline the broad characteristic of natural wind in Korea. Anemometers using CDMA telecommunication for data transfer have been installed near the railway lines to measure velocities and directions of natural wind and the data processing method has been studied using the measured data.

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Constructing Transfer Data in Seoul Metropolitan Urban Railway Using Transportation Card (교통카드기반 수도권 도시철도 환승자료 구축방안)

  • Lee, Mee Young;Sohn, Jhieon;Cho, Chong Suk
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.15 no.4
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    • pp.33-43
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    • 2016
  • Public transportation card data, which is collected for purposes of the Integrated Public Transportation Fare System, provides neither transfer time nor transfer frequency occurring on the metropolitan city-rail (MCR). And because there are no transfer toll gates installed on the MCR, data on transfers between lines are estimated through means such as elicitations using survey questionnaire, or otherwise through macroscopic observations, which poses the risk of transfer time and frequencies being underestimated. For the accurate estimation thereof, an explanation of the transit path that arises between the Entry-and Exit-Gates must be provided. The purpose of this research is twofold : 1) to build a transit path model to reflect the current state of transfer movements on the basis of transportation card reader data, and 2) to deduce information on transfers occurring in the greater metropolis. To achieve these aims, the idea of Big Nodes is introduced in the model to align transportation card reader operation system characteristics with those of the MCR network. The link-label method is applied in the model as well to make certain that the MCR network runs in an effective manner. Administrative information obtained by the transportation card reader is used to derive transfer time and frequency both in the city's mid-zones, and in the Seoul-Gyeonggi-Incheon district's large-zones. Public transportation card data from a single specific day in year 2014 is employed in the building of the quantified transfer specific data. Extended usage thereof as providing comprehensive data of transfer resistance on the MCR is also examined.

A Study on the Risk Management in the Electronic Commerce - Focus in Insurance System - (전자상거래 위험관리 방안에 관한 연구 - 보험제도를 중심으로 -)

  • La, Kong-Woo;Min, Tea-Hong
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.27
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    • pp.99-127
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    • 2005
  • This research can be summarized as follows: a. It provides the means how to manage risks in the electronic commerce with a focus on the insurance by which to transfer the risks to the third person. b. Since there are few preceding studies on the insurance of electronic commerce, further studies on the insurance stipulations about coverage and exclusions are needed. c. The risks in the electronic commerce are critical to the businessmen and the insurance can protect them from the perils and activate the electronic commerce. d. Inter-governmental and inter-organizational cooperations are needed to enact the unified international insurance clause. Researches on the electronic insurance should be vitalized for more objective analysis. A positive study needs a close survey on the individual and the business concerned, the insurance company, and the policy authorities, which will make it possible to adjust the coverage and exclusion and assess an optimum insurance rate.

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