• 한국환경과학회지
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• 제28권2호
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• pp.211-217
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• 2019

A Numerical modeling approach is usually applied to reproduce the physical phenomena of a fill dam-break. The accuracy of the dam-break model depends on the physical structure that defines input variables such as the storage volume, breach formation and progress, and the parameters of the model, which are subjective as they are prescribed by users. In this study, a sensitivity analysis was performed for the nonlinear breach progression curve that was already developed, which includes four parameters. The study focuses on the two of the parameters which control the breach forming time and peak discharge. The model is coupled with a two-dimensional flood simulation model (FLO-2D) to examine flood coverage and depth. It is generally observed that the parameter ${\beta}$ controls only the breach forming time, the parameter ${\gamma}$ is particularly sensitive to the peak flow.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2006년도 학술발표회 논문집
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• pp.1666-1670
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• 2006

The purpose of this study is to analyze how a downstream channel is affected in case of hypothetical dam failure. The object of it is Hwacheon dam basin within the basin of North Han river. This study has analyzed the influence on Pyeonghwa(Peace) dam and Hwacheon dam supposing that the Imnam dam in North Korea on the upper stream of North Han river is failed hypothetically at the MFWL(maximum flood water level) by a deluge of rain. The model applied at the main study is NWS(National Weather Service) FLDWAV(Flood Wave Routing Model). Dam breach characteristics data are analyzed by making nine hypothetical scenarios on the basis of other studies on the shape and size of dam breach, time of failure and so on. Expected peak discharge through the breach is verified to have the propriety in comparison with empirical function which is developed on the basis of the case of dam breach in the foreign countries and it is observed that peak discharge is more increasing, as the time of breach gets shorter and the breach width gets bigger. As a result of main study, even though the Imnam dam is hypothetically failed down, there has no influence on the Hwacheon dam of the downstream as the extended Pyeonghwa dam on the downstream controls the volume of discharge properly.

• 무역상무연구
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• 제55권
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• pp.95-124
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• 2012

Referring to Buyer's obligations, the Buyer must pay the price for the goods and take delivery of them as required by the contract. There are vital importances to the Buyer's Fundamental Breach. The legal effects of a breach of contract do not depend on the nature of the obligation broken, but on the consequences of the breach the detriment to the other party. The obligations mentioned to Article 53 are primary obligations which are to be fulfilled in the normal performance of the contract. They include a number of different acts which could be seen as the subject-matter of different obligations. CISG gives further details for the payment of the price in Articles 54 to 59 and for taking delivery in Article 60. The buyer has to take delivery at the respective place within a reasonable period after this communication since he cannot be required to take delivery immediately. Refusing to take delivery in case of delay not constituting a ground for avoiding the contract makes no sense, since this would lead to even later delivery. For the understanding of Buyer's Fundamental Breach, We need to search the Cases referring to the breach of buyer's main obligations.

• 정보보호학회논문지
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• 제27권6호
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• pp.1507-1517
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• 2017

일반적으로 정보유출사건은 외부 해커에 의해 발생된다고 생각되지만 내부자에 의한 직간접적인 정보유출사건이 더 많고 전체 유출비중의 과반 수 이상을 차지하기 때문에 내부자 유출에 대한 대비가 필요하다. 본 연구에서는 일반 억제 이론과 합리적 선택 이론을 기반으로 교통심리학 분야에서 연구되었던 행동결정요인인 위험감수성과 상황불안을 통합해 연구모델을 구성하고 설문조사를 통해 실증분석 하였다. 분석 결과, 위험감수성이 지각된 처벌의 심각성 및 확실성에 미치는 영향은 통계적으로 유의미하지 않았으나, 지각된 이익, 상황불안, 지각된 처벌의 심각성 및 확실성은 정보유출의도에 영향을 주는 것으로 확인되었다.

• 대한핵의학회지
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• 제19권1호
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• pp.45-47
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• 1985

We conclude that Nuclear Medicine technology has much to offer in the diagnosis of cardiovascular pathologies. Its potnetials have yet to be fully appreciated by those who have access to the facility, as also by those who practise speciality with resigned pessimism.

• 무역상무연구
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• 제15권
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• pp.7-31
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• 2001

All legal systems set out the principle of full compensation of damages, which aims to fulfil the plaintiff's expectations by putting him into as good a position as he would have been in if the contract had been performed. On the other hand, they place some limitations on the full recoverability of damages for breach of contract. In Civil Law systems, 'fault' is a necessary requirement for liability for damages, and the extent of recoverable damages is directly related to the degree of the dependent's fault. This principle, however, is not adopted by Common Law systems, in which the dependent would be liable in damages for breach of contract even though the breach was not due to his fault. The CISG is in a similar position to the latter systems. In Common Law systems as well as CISG, the extent of liability of the party in breach for damages depends on whether he foresaw or could have foreseen the damages at the time of contracting. Unlike the position in Civil Law systems, foreseeability seems to be the most effective principle to decide the extent. The tests for remoteness centre on reasonable foreseeability or contemplation of the loss. The party in breach is liable even for loss indirectly caused to the other party provided that this loss was foreseeable or contemplated by the party in breach. However, this manner to decide remoteness may lead to unreasonable results in some cases. If the party in breach were the inveterate pessimist who foresaw all sorts of possible damages, he could foresee damages too remote from the breach of duty. If this fact were revealed in the course of trial, he should be liable for such indirect damages. This is really undesirable result. Therefore, as to the remoteness test, the criterion of whether the loss is foreseen or contemplated must not be adopted. Foreseeability by reasonable person must be the only available criterion.

• 한국심리학회지 : 문화 및 사회문제
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• 제25권1호
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• pp.27-53
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• 2019

본 연구는 테크노 스트레스의 유발요인 중 테크노 과중과 테크노 침해가 심리적 계약 위반에 미치는 영향을 확인하고, 심리적 계약 위반이 정서적 소진에 어떠한 영향을 미치는지 그 과정을 살펴보기 위해 이루어졌다. 또한 테크노 과중 및 테크노 침해와 심리적 계약 위반간의 관계에서 발언행동의 조절 효과를 검증하고자 했다. 이를 위해 40문항으로 구성된 자기보고식 설문지를 이용하여 현재 조직에서 종사하고 있는 직장인들을 대상으로 설문조사를 실시하였으며, 296명의 자료가 분석에 사용되었다. 분석 결과, 테크노 과중 및 테크노 침해를 높게 지각하는 구성원일수록 심리적 계약 위반을 더 경험하는 것을 확인할 수 있었으며, 테크노 과중과 테크노 침해가 심리적 계약 위반을 매개하여 정서적 소진을 높인다는 것을 확인할 수 있었다. 또한, 발언행동의 수준이 높을수록 테크노 과중 및 테크노 침해와 심리적 계약 위반 간의 정의 관계가 감소하는 조절 효과가 관찰되었다. 이러한 연구 결과를 바탕으로 본 연구가 갖는 시사점과 한계점, 향후 연구를 위한 제언에 대해 논의하였다.

• 무역상무연구
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• 제19권
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• pp.67-93
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• 2003

The CISG approach was intended to make the remedial system clear, but produced ambiguity, and complexity. The CISG does not differentiate between main, auxiliary and participatory obligations. There is no distinction between breaches of main or breaches of auxiliary obligations, rather, a distinction is made between fundamental and other breaches of contract. Articles 25 gives the definition of fundamental breach of contract. This concept is the essential of avoidance and remedial system in the CISG. This concept, however, is ambiguous. The fact that the fundamentality of a breach of contract in many cases is the condition for an avoidance of contract, is expression of the trend of the CISG to preserve contracts, which I consider as essential in international trade. The elements which define a substantial detriment are extremely complex. It will become obvious that the relevant detriment is not a static element, but in many instances occurs only when the breach of contract continues. It should be added that it is the circumstances of each individual case which are relevant. It is to be stressed that a fundamental breach of contract must constitute also a non-fulfillment of a contractual obligation.

• Communications for Statistical Applications and Methods
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• 제27권4호
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• pp.487-500
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• 2020

Insurers face increasing demands for cyber liability; entailed in part by a variety of new forms of risk of data breaches. As data breach occurrences develop, our understanding of the volatility in data breach counts has also become important as well as its expected occurrences. Volatility clustering, the tendency of large changes in a random variable to cluster together in time, are frequently observed in many financial asset prices, asset returns, and it is questioned whether the volatility of data breach occurrences are also clustered in time. We now present volatility analysis based on INGARCH models, i.e., integer-valued generalized autoregressive conditional heteroskedasticity time series model for frequency counts due to data breaches. Using the INGARCH(1, 1) model with data breach samples, we show evidence of temporal volatility clustering for data breaches. In addition, we present that the firms' volatilities are correlated between some they belong to and that such a clustering effect remains even after excluding the effect of financial covariates such as the VIX and the stock return of S&P500 that have their own volatility clustering.

• 한국산학기술학회논문지
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• 제19권2호
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• pp.1-8
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• 2018

최근 전 세계적으로 이상기후에 따른 국지성 폭우로 인한 홍수 발생과 하천제방의 노후화로 인하여 제방이 소실되고 저지대에서의 엄청난 재산 피해 및 인명 피해가 발생되고 있다. 특히 월류에 의한 제방붕괴는 약 40%에 달하는 것으로 보고되고 있다. 본 연구는 월류에 의한 제방붕괴의 원인 및 메커니즘을 파악하기 위해 수리모형실험을 수행하였고 제방의 내구성 향상을 위한 친환경 신소재인 바이오폴리머를 이용하여 월류에 따른 제방사면의 안정성 및 붕괴지연효과 등을 평가하였다. 영상계측장치를 이용한 실험분석 결과, 제방사면에 신소재 적용 시 총 제방붕괴시간은 흙 제방과 비교했을 때 약 2.25배의 차이를 보였고 신소재가 적용되지 않은 흙 제방의 경우 초기 붕괴발달속도가 약 1.43배 빠르게 나타났으며 시간이 지날수록 제체가 급격하게 붕괴되는 것을 관찰할 수 있었다. 또한 신소재 적용 제방의 붕괴메커니즘은 흙 제방에 비해 확연히 다르게 나타났으며 월류 흐름에 저항하여 사면침식속도를 경감시킴으로써 급격한 제체붕괴 예방이 가능한 것으로 평가되었다.