• 대한치과보철학회지
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• 제31권3호
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• pp.351-384
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• 1993

Complete denture occlusion must be developed to function efficiently and with the least amount of trauma to the supporting tissues. For the preservation of supporting tissues, it is imperative to reduce to a minimum the functional stress induced by dentures. The magnitude of the horizontal component of functional stress contributed by various occlusal teeth forms has not been studied. This study was aimed to investigate the influence of different occlusal teeth forms on the mode of distribution of the stresses in the mandibular tissue, and the displacement of lower dentures during the variant functional movement of mandible for this study three dimensional finite element analysis was used. FEM models were created using commercial software Super Sap for IBM 32 bit computer. The model was composed of 3380 brick elements and 4346 nodes. The results were as follows. 1. The magnitude of stress was similar between two models in centric occlusion, in the case of anatomic model, the stress was concentrated on the buccal side of alveolar ridge beneath the bicuspids. 2. During the protrusive movement, the increasing of stress from the posterior to anterior part of mandible was seen in the case of anatomic model. 3. During the lateral movement, the stress of anatomic model was greater than that of nonanatomic model. 4. The stress of anatomic model was concentrated on the anterior region of residual ridge during the lateral movement. 5. In the case of anatomic model the anterior part of denture was displaced severely at the centric and lateral position, but the denture of nonanatomic model was displaced minutely at the protrusive and lateral position.

• 한국정보통신학회논문지
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• 제1권2호
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• pp.145-158
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• 1997

멀티미디어 동기화는 분산 멀티미디어 환경에서 주어진 시간내에 멀티미디어 데이터를 네트워크를 통해 동기식으로 전송하여 연속적인 멀티미디어 프리젠테이션을 보장하는데 필요한 기법이다. 본 논문은 멀티미디어 응용의 서비스 품질 및 특성을 이용하여 지연에 민감한 멀티미디어 데이터를 서비스 품질의 저하없이 동기식으로 전송 및 출력할 수 있도록 하는 미디어 간 및 미디어 내 동기화 기법을 제안한다. 제안된 기법에서는 네트워크 지연 변동으로 인하여 미디어 데이터의 전송 시간을 예측할 수 없고 지역 및 원격 시스템 사이에 동기화를 위한 전역 클럭을 이용할 수 없는 환경에서 스큐와 지터로 인한 비동기 현상을 방지하기 위해 논리 시간 시스템, 동적 버퍼 관리 기법, 동기화 구간의 조정 기법을 적용하였다. 특히, 최대 전송 지연허용 시간, 최대 패킷 손실률 등과 같은 프리젠테이션 품질을 이용하여 네트워크 지연 변동을 흡수할 수 있고 동기화에 필요한 버퍼 요구량을 줄일 수 있는 방안을 제시하였다.

• 한국통신학회논문지
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• 제33권5B호
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• pp.296-303
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• 2008

본 논문에서는 hard handoff 발생시에 sender와 MN 사이의 전 구간의 RSVP session을 재설정하는 문제를 해결하기 위해 이미 설정되어 있는 RSVP session 지원 node를 검색하고, 종단 간 전구간이 아닌 경로가 변경 되는 node에서 자원을 할당하는 데이터의 전송 경로 회유 방안을 제안하였다. 기존의 설정된 RSVP session을 지원하는 노드를 검색하기 위한 처리 과정으로써, PCR 알고리즘을 제안하였으며 PCR 알고리즘을 동작시키고, 기존의 PATH 메시지와 RESV 메시지의 교환 절차를 줄임으로써, 전송되는 데이터를 바로 회유 시킬 수 있도록 Route_Reconf 메시지를 새롭게 정의 하였다. PCR 과 Route_Reconf 메시지를 사용하여 session이 유지됨과 종단간 RSVP session 재설정 없이 중간 노드의 경로 변경을 통해 그로 인해 효율적으로 자원 관리가 이루어질 수 있음을 종명하기 위하여 시뮬레이션을 수행하였다.

• 사회복지연구
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• 제43권1호
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• pp.229-247
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• 2012

본 연구는 전국 345명의 사회복지전담공무원의 제도에 대한 인식 및 평가를 중심으로, 국민기초생활보장제도의 개선방안에 대한 평가와 이에 영향을 미치는 요인을 분석하였다. 분석결과, 사회복지전담공무원의 제도 및 수급자에 대한 인식 및 평가 수준에 따라서 각 개선방안에 대한 평가에 차이가 나타났다. 특히, 사회복지전담공무원의 재직년수, 업무량 수준에 따라, 그리고 국민기초생활보장 급여수준, 수급자의 탈빈곤 가능성, 자활근로사업의 성과에 대한 사회복지전담공무원의 제도 인식에 따라 개선방안 중 근로능력자 제한규정에 대한 평가가 다르게 나타났다. 이러한 분석결과를 바탕으로 제도 시행 10주년을 맞이한 국민기초생활보장제도의 주요과제와 개선방안을 탐색하였다.

• 시큐리티연구
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• 제61호
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• pp.333-352
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• 2019

2019년 1월과 8월 영업비밀보호법과 산업기술보호법의 각각의 개정이 있었다. 이들 법률의 개정은 기술 보호에 크게 기여할 것으로 보인다. 그러나 민·형사적 구제와 관련하여 몇 가지 더 보완되어야 할 사항이 있다. 민사구제 분야와 관련하여 영업비밀보호법과 산업기술보호법의 경우 3배 손해배상 도입에도 불구하고, 입증자료제출과 관련된 규정은 정비가 되지 못한 상태이다. 따라서 입증자료의 제출 범위 확대, 손해액 산정을 위한 서류인 경우의 제출 강제, 서류제출 명령을 따르지 않는 경우 상대방의 주장을 진실한 것으로 인정하는 등 개정 특허법의 수준으로 정비될 필요가 있다. 한편 산업기술보호법은 손해배상규정이 도입되었지만, 손해액 추정규정이 없는 상태이므로, 일실이익·이익액·로열티 상당액에 대한 추정규정이 필요하다. 형사구제와 관련하여서는 영업비밀보호법과 산업기술보호법 모두 형벌의 상향화는 이루어졌지만 양형규정이 정비되지 못하고 있으므로 이의 정비가 필요하다. 또한 최근의 기술유출은 개인의 일탈을 넘어 조직적인 유출로 확대되고 있음에도 불구하고 이에 가담한 기업 등 관련 법인의 처벌에 대한 중과(重課)와 관련하여 개정이 필요하다. 일본과 미국의 경우 법인 중과 규정을 두고 있다는 점을 참고하여야 할 것이다. 또한 몰수제도와 관련하여서는 범죄수익은닉규제법에서는 방위산업기술은 국내유출도 몰수의 대상으로 하고 있는 반면에, 영업비밀과 산업기술은 '국외'유출만 몰수의 대상으로 하고 있으므로 이의 개정도 필요하다.

• 무역상무연구
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• 제77권
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• pp.239-258
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• 2018

The purpose of this study is to examine the legal standards of agreements on the origin of liability and the relevant laws in Korea, to suggest implications for custom authorities and traders wishing to benefit from preferential tariff via FTA, citing the excluded cases of related FTA preferences (court cases and administrative judgments). In order to examine the provisions related to supporting evidence of the origin of liability in FTA, we examined FTAs agreed between Korea and EU, EFTA, ASEAN, U.S., and India relevant to FTA Special Customs Act, court cases and administrative judgements. If verifying the origin to protect the fair trade order impedes to promote utilizing FTA, solutions will need to be suggested. If FTA preference is exempted due to verifying the origin by the import customs authorities, the importer shall pay the income tax calculated in accordance with the general tax rate. This is because the certificate of origin confirmed during verification process is different from the actual origin. In most agreements, the exporter (the producer) shall issue the certificate of origin and since the importer has no other option than obtaining the certificate of origin from the exporter, it may face consequences such as declined credibility from the custom authorities in addition to being disqualified for FTA preferential, if the certificate of origin received from the exporter has flaws. On the other hand, the exporter cannot help but being punished by the customs authorities due to issuing defective origin certificates, but it doesn't have conventionary liabilities for damages incurred to the importer. As a result, importers are forced to pursue legal proceedings to claim damages to exporters or to give up FTA preference. As FTA is increasingly utilized, the number and amount of origin verification in Korea has continuously been increasing while administrative judgements indicates other FTA exporters doesn't seem to gain any support in utilizing FTA like Korea does. It has been 8 years since full-scale supports in FTA launched and now is the time to introduce more efficient and intensive FTA support system In this regard, it is desirable to conduct comprehensive verification on export Next, an institutions that assures FTA-based exports should be established in order to compensate the importer's damages that may occur from disqualified certificate of origin issued by the exporter.

• 대기
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• 제16권3호
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• pp.247-257
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• 2006

The Yeong-dong heavy snowfall forecast supporting system has been developed during the last several years. In order to construct the conceptual model, we have examined the characteristics of heavy snowfalls in the Yeong-dong region classified into three precipitation patterns. This system is divided into two parts: forecast and observation. The main purpose of the forecast part is to produce value-added data and to display the geography based features reprocessing the numerical model results associated with a heavy snowfall. The forecast part consists of four submenus: synoptic fields, regional fields, precipitation and snowfall, and verification. Each offers guidance tips and data related with the prediction of heavy snowfalls, which helps weather forecasters understand better their meteorological conditions. The observation portion shows data of wind profiler and snow monitoring for application to nowcasting. The heavy snowfall forecast supporting system was applied and tested to the heavy snowfall event on 28 February 2006. In the beginning stage, this event showed the characteristics of warm precipitation pattern in the wind and surface pressure fields. However, we expected later on the weak warm precipitation pattern because the center of low pressure passing through the Straits of Korea was becoming weak. It was appeared that Gangwon Short Range Prediction System simulated a small amount of precipitation in the Yeong-dong region and this result generally agrees with the observations.

• Journal of Chest Surgery
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• 제22권4호
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• pp.601-608
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• 1989

We sought the relationship between the pulmonary artery development and cardiac performance from the analysis of the 36 cyanotic congenital heart disease patients [mainly TOF] who were operated and indwelled the pulmonary artery and left atrial pressure monitoring catheters for the postoperative care at the department of Thoracic and Cardiovascular Surgery SNUH in 1988. They were pre-evaluated of the pulmonary artery index from the cineangiographic films and post-operatively, calculated the cardiac index from the arterial and mixed venous blood gas and also measured the mean left atrial pressure and total inotropic supporting amount after operation. The post-operative cardiac indices were 3.46 * 1.03 1/min/M2 [immediate postoperative], 3.31 [ 1.08 [postoperative 6 hrs], 3.29 [ 1.01 [12 hrs], 3.54 * 1.02 [24 hrs], 3.92 * 1.14 [48 hrs], respectively. We divided the patients the group A and group B from the size of the pulmonary artery index, that is, group A was below 200 mm2/M2 and group B above 200 mm2/M2 of the pulmonary artery index. The cardiac indices and left atrial pressure between the group A and B were not different in the view of the statistical significance but the total post-operative inotropic amount of group A was more than group B and it was significant statistically. We concluded that the smaller the pulmonary artery index is, the more postoperative supportive treatment [for example, inotropics] for the enhancement of cardiac performance is needed, and indirectly, which means that the pulmonary artery index was correlated with the postoperative cardiac performance in cyanotic congenital heart disease.

• 환경영향평가
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• 제19권3호
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• pp.357-365
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• 2010

This study evaluated current status of marine sand mining and related assessment systems in Korea for supporting effective policy development. The estimated total deposit of sand was ca. 10 billion $m^3$, while the estimated minable amount was ca. 5.5 billion $m^3$, in which marine sand accounted for 21%. The proportion of marine sand to the total mined aggregates has steadily increased by 15% in 1992 to 28% in 2002, but recently slightly decreased. Marine sand mining is regulated under a consultation system on the coastal development according to the "Marine Environmental Management Act". During 2002-2009, a total of 184 million $m^3$ of marine sand was mined, and the annual amount ranged from 17,440,000-33,698,000 $m^3$ the coastal area accounted for 64.5% and the Exclusive Economic Zones (EEZs) 35.5%. In the coastal area, the major area supplying the marine sand was Gyeonggi Bay (>62%) followed by some southwestern coastal areas. The South and the West EEZ explained 23.9% and 11.6% of the total mined sand. The extent of marine sand mining in Korea was evaluated to be greater compared with other countries. Large-scale concentrated and repeated sand mining can damage environmental changes and ecology with long-term accumulated impacts.

• 대한치과보철학회지
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• 제21권1호
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• pp.59-66
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• 1983

Distal extension partial dentures are supported by both the relatively rigid teeth and the resilient mucosa. So impression techniques of residual alveolar ridge in case of distal extension partial denture have particular importance in order to broad distribution of the masticatory force. McLean recognized the need for recording the tissues supporting distal extension partial denture base in functional form to equalize the resilient and non-resilient support, and this was called functional impression. Many investigators proposed various techniques of the functional impression for a distal extension partial denture, but only a little studies were performed about displacement of soft tissue under distal extension partial denture base. The purpose of this study is to investigate the amount of vertical displacement of the soft tissue under distal extension partial denture base by different functional impression techniques. Impression techniques used were Z.O.P. Impression, Selective Tissue Placement Impression, Functional Relining Impression. Measurement of the vertical displacement of soft tissue were made with Depth Gauge and Measuring Platform. A Anatomic Impression was used as a control. The results were tested statistically using 3 way ANOVA and Scheffe test. The followings were the results obtained from this study. 1. The greatest amount of soft tissue displacement was observed in the center of the retromolar pad. 2. No significant differences were found between the crest of alveolar ridge and the buccal shelf area. 3. The greatest soft tissue displacement was observed in Functional Relining Impression using Iowa wax, and the least displacement was observed in Selective Tissue Placement Impression using murcaptan rubber base. 4. No significant differences were found between finger pressure and biting pressure in Z.O.P. Impression, but greater displacement was observed by biting pressure than finger pressure in Functional Reling Impression.