• 물과 미래
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• 제23권4호
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• pp.467-476
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• 1990

급격한 댐 파괴로 인한 홍수파가 마른하도 상에 전파되어 나가는 현상을 정파와 부파의 선단부의 이동을 추적하는 Hartree이동기법에 의하여 해석하였다. 본 연구에서 개발한 모형을 WES의 실험조건에 적용한 결과, 댐 상하류부 수개 지점에서의 수문곡선의 형상과 특성선의 전파양상에 있어 실측치와 계산치가 잘 일치되고 있었다. 본 연구에서의 해석기법은 마른 하도상에 전파되는 각종 홍수파 해석에 효과적으로 응용될 수 있을 것으로 판단되었다.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1997년도 봄 학술발표회 논문집
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• pp.635-642
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• 1997

This research focused on the development of concrete overlay and test, which was conducted at 88 Highway 105k, 2 lanes of 290 m. The field application test consists of 6 cm and 10 cm bonded concrete overlay and 25 cm unbonded concrete overlay, using the slag cement for opening lanes for traffic early. The overlay were placed in a day. The whole period of traffic closing wes 8 day and it was reopened to traffic after concrete overlay has cured for 3 day. 5 cracks were founded when the field test section was investigated after 1 month, but all these may not make significant problems to overlay because these initiated and growed at the same line of repair section. The rideability and skid resistance become much better like in the new pavement after overlay. The structural capacity against deflection was much. which were verified by FWD(Falling Weight Deflectometer). The field test section is being used in a good condition and the results of field application and pavement performance analysis are encouraging. This rehabilitation methods may be adopted in Korea after a more field performance verifications.

• Computers and Concrete
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• 제9권4호
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• pp.293-310
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• 2012

This paper discusses a new constitutive model called the high-rate brittle microplane (HRBM) model and also presents the details of a new software package called the Virtual Materials Laboratory (VML). The VML software package was developed to address the challenges of fitting complex material models such as the HRBM model to material property test data and to study the behavior of those models under a wide variety of stress- and strain-paths. VML employs Continuous Evolutionary Algorithms (CEA) in conjunction with gradient search methods to create automatic fitting algorithms to determine constitutive model parameters. The VML code is used to fit the new HRBM model to a well-characterized conventional strength concrete called WES5000. Finally, the ability of the new HRBM model to provide high-fidelity simulations of material property experiments is demonstrated by comparing HRBM simulations to laboratory material property data.

• Journal of Advanced Marine Engineering and Technology
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• 제25권4호
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• pp.904-911
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• 2001

The fuels of water-in-oil emulsion have a potential of reducing PM(Particulate Matter) and NOx emissions, and increasing combustion efficiency in the furnaces and the burners. For making the most of the beneficial of the secondary atomization due to the microexplosion, the water droplets distributed in the oil must have the optimal sizes. The purpose of this paper is to investigate the water droplet size distribution characteristics of the different types of the static mixers. For analysis the size distribution characteristics efficiently, image analysis system wes constructed and an appropriate image processing algorithm was developed. Two kinds of static mixers: Kenics type and RF type, were tested. As a results, RF type static mixer shows a better characteristics in the mean drop size, particularly in the condition of high water content.

• 대한치과보존학회:학술대회논문집
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• 대한치과보존학회 2003년도 제120회 추계학술대회 제 5차 한ㆍ일 치과보존학회 공동학술대회
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• pp.581-581
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• 2003

The purpose of this study was to search non-invasive and reproductive pulp test. Temperature of the crown surface was measured using the infrared thermography, and the pulp test was investigated with difference of crown temperature of the vital and the non-vital tooth in vitro and in vivo. Twenty extracted human maxillary central incisors were used in this study. Two sample teeth after access cavity preparation were arranged setting with one pair. Then, the each tooth wes estimated as the vital and the non-vital tooth.(중략)

• Nuclear Engineering and Technology
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• 제49권5호
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• pp.914-919
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• 2017

While industry understands the importance of keeping equipment operational and well maintained, the importance of tracking maintenance information in reliability models is often overlooked. Prognostic models can be used to predict the failure times of critical equipment, but more often than not, these models assume that all maintenance actions are the same or do not consider maintenance at all. This study investigates the influence of integrating maintenance information on prognostic model prediction accuracy. By incorporating maintenance information to develop maintenance-dependent prognostic models, prediction accuracy was improved by more than 40% compared with traditional maintenance-independent models. This study acts as a proof of concept, showing the importance of utilizing maintenance information in modern prognostics for industrial equipment.

• 한국가축번식학회지
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• 제26권3호
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• pp.229-234
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• 2002

본 연구는 불임견의 번식장애를 해결할 목적으로 개 정소상체로부터 채취한 정액을 tris-buffer로 원심분리하여 정장을 제거한 RSP-T 희석 정자의 일반성상과 동결방법 및 glycerol 농도가 동결융해 후 생존성에 미치는 영향과 난자와 정소상체 정자를 매정시켰을 때 정자침입율을 조사하기 위하여 수행하였다. 1. WES, RSP-S 및 RSP-T 희석 정소상체 정액의 정자수는 각각 4.25 $\pm$ 0.25(X$10^{6}$ Cells/$m\ell$), 3.85 $\pm$ 0.20(x$10^{6}$cells/$m\ell$), 4.05 $\pm$ 0.28(X$10^{6}$cells/$m\ell$)이었고, 활력은 50.55 $\pm$ 2.75%, 67.25 $\pm$2.55%, 78.75$\pm$3.55%이었고, 기형정자율은 49.45$\pm$2.25%, 37.75 $\pm$ 2.10%, 24.25 $\pm$ 1.55%이었다. 2. RSP-S와 RSP-T 희석 정소상체 정액을 완만 동결을 했을 때 생존율은 각각 35.00 $\pm$2.35%, 45.50 $\pm$2.15%와 초급속동결시의 생존율은 16.50 $\pm$ 3.55%, 22.55 $\pm$ 3.95%이었다. RSP-T 희석 정소상체 정액을 동결시 내동제에 glycerol 농도를 2.0~8.0% 첨가하여 동결했을 때 생존율은 각각 9.25 $\pm$ 1.55%~17.50$\pm$2.50%로서 신선정액의 25.50% 4.50%~34.00$\pm$5.15%에 비해 낮은 생존율을 나타냈다. 3. 동결 융해한 정소상체 희석정자의 평균 수정 능 획득 율과 첨체반응 및 생존정자수는 각각 13.00 $\pm$ 2.35%, 3.55 $\pm$ 0.85%, 15.50 $\pm$ 1.90% 였고, 신선 정소상체 정액의 45.25$\pm$5.75%, 7.06 $\pm$0.25%, 49.20$\pm$6.80%이었다. 신선 및 동결 수정 능 획득 정자를 난자와 매정시켰을 때 난자내 정자의 침입율은 각각 39.25 $\pm$4.72 %와 34.24$\pm$3.93%였고, 난자당 정자의 침입 수는 각각 1.30$\pm$0.33개, 1.10$\pm$0.50개이었다.

• 대중서사연구
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• 제25권4호
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• pp.397-428
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• 2019

판타지는 합리적 현실의 균열과 틈새에서 출현한다. 이탈로 칼비노는 "판타지는 독자가 텍스트에 빠져들지 않고 일정한 거리를 유지할 때 가능한 것"이라고 말한다. 판타지는 현실과 가장 먼 곳에서 형성되는 것이 아니라, 현실과 허구 사이의 혼동에서 오는 것이다. 요컨대, 판타지는 사실성의 대척점에 존재하는 것이 아니라, 사실성의 경계에 존재한다고 봐야 할 것이다. 리얼리티와 판타지는 구조적으로 얽혀 있기도 하다. 어디까지가 현실이고, 어디부터가 판타지인지 명확하지 않은 경우이다. 사실, 이 경우에 독자나 관객은 내가 보고 있는 것이 현실인지 아닌지 혼란에 빠진다. 토도로프는 바로 이러한 경우를 '망설임'이라 표현하는데, 그에 따르면 이 망설임이 판타지의 핵심 요소이다. 이것이 잘 구현된 텍스트로 김영하의 단편소설 <흡혈귀>(1997), 웨스 앤더슨 감독의 영화 <그랜드부다페스트 호텔>(2014) 두 편을 살펴볼 수 있다. 겉으로만 보면, 전혀 상관이 없을 것 같은 이 두 텍스트는 서사 구조적인 유사성을 띠고 있다. 그리고 독자와 관객을 사실과 판타지의 경계에서 혼란을 겪게 하면서, 흥미를 유발하는 공통적 특성을 갖고 있다. 김영하의 <흡혈귀>에서는 하나의 텍스트가 독자에게 전달되면서 판타지와 리얼리티 사이의 혼란을 반복적으로 경험하는, 일종의 '서사적 감염'이 일어나는 과정을 살펴볼 수 있다. 영화 <그랜드부다페스트 호텔>에서는 비현실적인 스토리를 역사 속의 사실인 것처럼 느끼게 만들려는 전략과 더불어, 소외 계층의 인물의 성공담이 현실화되기 위한 전제 조건으로서의 '연대'의 의미가 판타지를 통해 부각되고 있다. 이 논문은 이 두 텍스트를 통해, 판타지가 어떻게 '리얼리티'를 만들어 내고, 독자에게 판타지를 느끼게 만들며, 어떻게 그것을 확산시키는가에 대한 연구이다.

• 호스피스학술지
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• 제3권2호
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• pp.55-60
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• 2003

Purpose: The appropriate duration for effective hospice care is estimated about 3 months. However, the length of hospice care of many hospice patients is mostly less than 1 months. This is too short for effective hospice care. Therefore we investigated the reason by clinical considuations include the length of hospie care, duration from diagnosed as terminatlly ill to refer to hospice, the recogntion of hospice of doctors, patients and familis. Methods: This study was designed to retrospective cohot study. The data was obtaind from 50 hospice patients those who died in hospital from July to September in 2003. Results: Out of 50 patient, 30 were male(60%). The median age wes 60years in males and was 61 years in femailes. The most prevalant cancer was colorectal cancer(9 patients, 18%), followed by hepatoma(8 patients, 16%), and stomach cancer(7 patients, 14%). The most prevalent symptom was pain(37 patients 74%) and most prevalant reason of admission was also pain(30 patients, 60%). The most prevalent physician specialty was general internal medicine(21 doctors, 42%), followed by oncology(19 doctors, 38%). The median days form diagnosed terminally ill to refere to hospice was 47 days. The median lengths of hospice care was 23 days and the median admission days was 17. Conclusion: We found that lack of recognition of hospice of doctors, patients and families made the lengths of hospice care too short. If the patient and family go to hospice just after diagnosed as terminally ill, they could get more effective hospice care. To resolve these problems, it is needed education for them constantly.

• 유통과학연구
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• 제16권11호
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• pp.5-10
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• 2018

Purpose - The recent establishment of many varieties of English language in the globe has created many models of English such as world Englishes (WEs), English as a Lingua Franca (ELF), English as a family of languages, and English as an Intercultural Language (EIcL). Among the models, the present study highlights 'English as an intercultural language (EIcL)' in relation to distribution science business English teaching to elucidate what EIcL is and why it is critical and how it can be realized in the business English classrooms. Research design, data, and methodology - This study look into the EIcL paradigm that empowers all active users to view English as universal and at the same time enables them to develop critical skills to bridge intercultural gaps or to cross borders. Results - Rather than just focusing on an acquisition of standardized English(es), EIcL serves as a major contextual factor facilitating success in getting competence among the different English languages. Conclusions - EIcL is a promising and ultimately rewarding approach to the contemporary business English teaching arena. EIcL should be achieved through policies, textbooks or living abroad, and, above all, learners/teachers' active awareness and understanding' of the EIcL mainstreams.