• 통상정보연구
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• 제19권1호
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• pp.43-63
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• 2017

본 논문은 거액지급결제시스템인 캐나다의 LVTS와 미국의 Fedwire를 비교하여 연구하였다. 왜냐하면 양국은 국제결제은행(BIS) 지급결제제도위원회(CPSS)에 참가하고 있는 주요 14개국 중 동일한 북미경제권이며, LVTS와 Fedwire는 양국을 대표하는 거액지급결제시스템이기 때문이다. 연구의 결과, 양국의 시스템은 지급시스템의 제도적 기반과 지배구조, 참가방법, 지급지시의 착오, 위험관리정책 및 지급의 최종성과 효과가 다르다는 결론에 도달하였다. 또한 양 지급시스템의 연구를 통하여 한국의 지급결제시스템이 참여자들에게 인정받으면서 더욱 보편적인 시스템으로 발전하기 위한 정책적 시사점으로 다음과 같은 점을 제시하였다. 첫째, 소액과 거액이체시스템을 분리운영하고 있는 미국 및 캐나다와 다르게 한국은 통합시스템을 운영해왔다. 비록 연계결제망의 구축으로 10억원이상의 거액자금도 1회이체가 가능하게 되었으나 이를 통제할 수 있는 제도적 장치, 즉, 자금이체 주체별 및 금액별로 분리하여 참가자를 규율하는 것이 바람직하다. 둘째, 미국이나 캐나다에서 규정하고 있는 착오에 관한 명확한 정의 및 유형에 관하 규정이 한국의 제도에서는 명확한 명시가 없다. 참가자를 안정적으로 규율하기 위해서는 이를 별도로 규정할 필요가 있다. 마지막으로 이체규모에 제한이 사라진 만큼 참가기관에게 지급시스템 운영 기술력 확보, 적절한 비상시에 대비 백업자원 및 엄격한 보안 및 기술 요구조건 등을 추가하여 참가요건을 더욱 엄격히 요구할 필요가 있다.

• IUGG한국위원회:학술대회논문집
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• IUGG한국위원회 2003년도 정기총회 및 학술발표회
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• pp.18-18
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• 2003

Three-dimensional finite-difference simulation of earthquake ground motion is performed using a locally variable time-step (LVTS) scheme matching with discontinuous grids. Discontinuous grids in three directions and extension of the discontinuous grids' boundary to the free-surface in the LVTS scheme minimize the cost of both the computational memory and the CPU time for models like the localized sedimentary basin. A simplified model of sedimentary basin is dealt to show the feasibility and efficiency of the LVTS scheme. The basin parameters are examined to understand the main characteristics on ground-motion response in the basin. The results show that the seismic energy is concentrated on a marginal area of the basin far from the source. This focusing effect is mainly due to the constructive interference of the direct S-wave with the basin-edge induced surface waves. The ground-motion amplification over the deepest part of the basin is relatively lower than that above the shallow basin edge. Therefore the ground-motion amplification may be more related to the source azimuth or the direction of the incident waves into the basin rather than the depth of it.

• 통상정보연구
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• 제10권1호
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• pp.139-154
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• 2008

This research want to discuss some issues about payment system of America. This research focuses on comparing ACH with Fedwire. Firstly Fedwire is the payment system for only large-dollar transfer(Large-Value Transfer System; LVTS), while ACH(Automated Clearing House)payment mainly applies a consumer account. Secondly ACH transaction is either credit or debit transfer, while Fedwire is only credit transfer. Thirdly the communication system of Fedwire has twoway method, telephonelike communication network, but ACH is oneway store and forward electronic mail. At present LVTS divides into RTGS(Real-Time Gross Settlement) and DNS(Deferred Net Settlement). However Fedwire uses either RTGS(instantaneous for every transaction) or DNS(net net transaction) but ACH uses only DNS(net net transaction). Fourthly ACH is substantially cheaper than the Fedwire payment. lastly security is important in both Fedwire and ACH, it is even more crucial in Fedwire In addition, for each transaction, Fedwire may entail individual instantaneous confirmation to the originator and notification to the receiver, whereas ACH do not.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 제38회 하계학술대회
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• pp.1704-1705
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• 2007

A step-down procedure employing low voltage thermal transfer standard(LVTS) and micropotentiometer is described for the establishing the ac low voltage standards in the range of 2 mV to 200 mV below 1 MHz. Techniques are given for measuring input impedance with insertion method and calculating the loading error for the ac-dc transfer difference of the LVTS.

• 전자공학회논문지D
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• 제34D권12호
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• pp.89-100
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• 1997

This paper investigated a new type of low voltage threshold switch (LVTS). As distinguished from the many other types of electronic threshold switches, the LvTS is ; voltage controlled, occurs at low voltages ($V_{2}$ $O_{5}$lV devices. The average low threshold voltage < $V_{LVT}$>=218 mV (standard deviation =24mV~kT/q, where T=300K), and was independent of the device area (x100) and amorphous oxide occurred in an ~22.angs. thick interphase of the V/amorphous- $V_{2}$ $O_{5}$ contacts. At $V_{LVT}$ there was a transition from an initially low conductance (OFF) state into a succession of quantized states of higher conductance (ON). The OFF state was spatically homogeneous and dominated by tunneling into the interphase. The ON state conductances were consistent with the quantized conductances of ballistic transport through a one dimensional, quantum point contact. The temeprature dependence of $V_{LVT}$, and fit of the material parameters (dielectric function, barrier energy, conductivity) to the data, showed that transport in the OFF and ON states occurred in an interphase with the characteristics of, respectively, semiconducting and metallic V $O_{2}$. The experimental results suggest that the LVTS is likely to be observed in interphases produced by a critical event associated with an inelastic transfer of energy.rgy.y.rgy.