• KSCE Journal of Civil and Environmental Engineering Research
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• v.32 no.2A
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• pp.97-108
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• 2012

Dynamic responses were measured using long-term monitoring system for Uldolmok tidal current pilot power plant which is one of jacket-type offshore structures. Among the dynamic quantities, the tilt angle was chosen because the low frequency response components can be precisely measured by dynamic tiltmeter, and the natural frequencies and modal damping ratio were successfully identified using proposed LS-FDD (least squared frequency domain decomposition) method. And the effects of tidal height and tidal current velocity on the variation of natural frequencies and modal damping ratios were investigated in time and frequency domain. Also the non-parametric models were tested to model the relationship between tidal conditions and modal properties such as natural frequencies and damping ratios.

• Annual Conference on Human and Language Technology
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• 2023.10a
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• pp.281-286
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• 2023

더욱 사람같은 대화 모델을 실현하기 위해, 페르소나 메모리를 활용하여 응답을 생성하는 연구들이 활발히 진행되고 있다. 다수의 기존 연구들에서는 메모리로부터 관련된 페르소나를 찾기 위해 별도의 검색 모델을 이용한다. 그러나 이는 전체 시스템에 속도 저하를 일으키고 시스템을 무겁게 만드는 문제가 있다. 또한, 기존 연구들은 페르소나를 잘 반영해 응답하는 능력에만 초점을 두는데, 그 전에 페르소나 참조의 필요성 여부를 판별하는 능력이 선행되어야 한다. 따라서, 우리의 제안 모델은 검색 모델을 활용하지 않고 생성 모델의 내부적인 연산을 통해 페르소나 메모리의 참조가 필요한지를 판별한다. 참조가 필요하다고 판단한 경우에는 관련된 페르소나를 반영하여 응답하며, 그렇지 않은 경우에는 대화 컨텍스트에 집중하여 응답을 생성한다. 실험 결과를 통해 제안 모델이 장기적인 대화에서 효과적으로 동작함을 확인하였다.

• Journal of the Korea Convergence Society
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• v.9 no.7
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• pp.95-103
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• 2018

The purpose of this study was to awareness of dental care services in the elderly long-term care insurance system and retirement preparation of middle-aged people. The survey respondents had a 56.1% saving for old age life, And showed a tendency to they don't like depend on one's family(41.8%), elderly care was intended to use facility services and nursing care. 36.7% of respondents answered "I know a little" about the system. Also, the need for dental care services within the system was high (98.5%), If the service is provided, 92.3% of the respondents said that they would participate, otherwise unrecognized rate of dental care services in long-term care insurance was 85.2%. Therefore, it is necessary to expand the awareness of the part of dental care service in the system. The results of this study can be used as basic data for the improvement of the system of dental care services in long-term care insurance for elderly.

• The Journal of the Korea Contents Association
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• v.14 no.6
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• pp.298-306
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• 2014

This study aims to investigate the awareness and needs of patients as consumers and therapists as providers on the introduction of home physical therapy in the long-term care insurance. The survey participants were 96 patients and 132 physical therapists to a questionnaires, we analyzed for frequency of each questionnaire about awareness and necessity. As a result of the test, they considered that physical activity support services provided by nurse and nurses aid ware not specialized enough(pt 60,4%, PT 75,4%) and quality therapy should be available through a home physical therapy(pt 47.9%, PT 59.2%). Also, patients responded that the priorities to improve long-term care insurance were given to lowering expenses(35,4%) and expanding coverage of subjects(32.3%) while the physical therapists responded that professionals should be expanded(73.8%) and diverse rehabilitation services(20.2%) and a rehabilitation team should be introduced. They responded that the reasons of home physical therapy were needed that it was hard for patients to visit medical centers(PT 30.0%) themselves and it would be improvable for them to get physical function in elderly(pt 47.1%) through the service. In conclusion, as most patients as well as physical therapists responded that home visit therapy services should be introduced and their awareness of it was very high, it is suggested that the service should be quickly introduced as soon as possible.

• KDI Journal of Economic Policy
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• v.17 no.1
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• pp.181-183
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• 1995

• Journal of the Korean Society of Propulsion Engineers
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• v.18 no.6
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• pp.68-74
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• 2014

During the life firing test of 1 N-class thruster development model, pulse mode performance and performance changes were examined. The deviation of pulse mode response time according to thruster feed pressure was relatively small and the resultant ignition delay, response time, tail-off time were 32-35 ms, 86-91 ms, 89-98 ms, respectively. For the stabilized pulse region the impulse bit revealed the outstanding reproducibility of 1.41, 1.32, 2.10% at $3{\sigma}$. During the life firing test, the impulse bit was decreased with limited amounts, therefore the pulse mode performance could be considered to be maintained. The thrust centroid was also maintained during the life firing test.

• Journal of Korean Society of Steel Construction
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• v.12 no.5 s.48
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• pp.605-615
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• 2000

Cerebellar model articulation controller (CMAC) is introduced and used for the identification of structural dynamic model. CMAC has fascinating features in learning speed. It can learn structural response within a few seconds. Therefore it is suitable for the real time identification structures. Real time identification is required in the control of structure which may be damaged or undergo severe change in mechanical properties due to shrinkage or relaxation etc. In numerical examples, it is shown that CMAC trained with the dynamic response of three-story building can predict responses under not trained earthquakes with allowable error. Finally, CMAC has great potential in structural and control engineering.

• 한국벤처창업학회:학술대회논문집
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• 2016.04a
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• pp.88-92
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• 2016

2008년 글로벌 금융위기 이후 세계 주요 국가들은 이러한 상황의 생존전략으로 창업 및 기업가정신의 부활을 강조하고 있다. 우리나라도 경기침체 및 청년실업률 증가와 같은 장기불황을 극복하기 위해 '국민행복, 희망의 새 시대'라는 국정비전하에 '일자리 중심의 창조경제' 실현을 제1의 국정목표로 설정하였다. 2016년 4년차에 접어드는 창조경제는 수많은 예산과 인력을 투입하여 창업지원사업을 하고 있지만, 그 효과성에 대해서는 의문이 든다. 이에 본 연구는 실제 창업을 하거나 준비 중인 창업가, (예비)창업가, 학생을 중심으로 현 창업생태계의 문제점을 분석하였고, 이 분석결과를 토대로 정부, 지방자치단체 및 민간의 창업지원사업에 바람직한 지원방향을 제시하여 건강한 창업생태계 구축을 위한 방안을 제시하고자 한다. 분석결과, 정부의 창업지원 정책의 문제점은 보겨 주기식 창업지원사업 및 행사라고 응답한 비율이 41.5%로 가장 높은 응답률을 보였고, 국내 창업생태계 조성을 위해 제 역할을 충분히 하지 않은 당사자는 34.1%가 중앙정부, 28.3% 국내 대기업이라고 응답하였다. 창업경험 유무에 따른 창업과정의 애로사항은 자금조달이 46.1%로 가장 높았고, 창업 초기자금 조달방법은 응답자의 절반인 50.4%가 개인자금으로 창업 초기자금을 조달한다고 응답하였다. 창업이 주저되는 주요 이유로는 창업자금 마련 및 기회비용이 40.4%로 가장 높은 응답률을 보였고, 창업 시 가장 필요하고 중요하다고 생각되는 지원정책으로는 자금 및 투자 지원이 26.6%, 사무실공간지원 13.5%, 마케팅 및 판로 지원이 13.5%의 응답률을 보였다.

• Journal of the Society of Naval Architects of Korea
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• v.40 no.5
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• pp.60-67
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• 2003

For risk or reliability assessment of ship structures against particular hazardous situations such as total loss or sinking due to hull girder collapse, the short-term based response analysis rather than the long-term response analysis is required to determine wave-induced bending moments when the ship encounters a storm of specific duration and with a specified small encounter probability. In the present study, the effects of operational condition and sea states on wave-induced bending moments of large merchant vessels are investigated. A series of the short-term response analyses for a hypothetical VLCC and a Capesize bulk carrier (CSBC) are carried out with varying operational condition and sea states which include ship speed, significant wave height and wave persistence time, using the linear-strip theory based program ABS/SHIPMOTION and the MIT sea-keeping tables. The computed results are also compared with the IACS design formula predictions. The results and insights developed from the present study are summarized.

• The Korean Journal of Applied Statistics
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• v.32 no.3
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• pp.375-389
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• 2019

Sample attrition according to a long-term tracking reduces the representativeness of the sample data in a panel study. Most panel surveys in South Korea and other countries have prepared response adjustment weights in order to solve problems regarding representativeness due to sample attrition. In this paper, we divided the panel data into continuous response group and non-continuous response group according to response patterns and considered a weighting adjustment method to reduce the bias of the non-continuous response group. A simulation indicated that the proposed composite estimation type weighting method, which reflected the characteristics of non-continuous response groups, could be more efficient than other weighting methods in terms of reducing non-response bias. As a case study, the proposed methods are applied to the Korean Longitudinal Study of Ageing (KLoSA) data of the Korea Employment Information Service.