• 화약ㆍ발파
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• 제39권3호
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• pp.24-34
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• 2021

정밀한 시차를 갖고 있는 전자뇌관은 다양한 건설현장에서 폭넓게 사용되고 있다. 전기뇌관이나 비전기뇌관을 이용한 발파현장에서 소음과 진동이 허용기준치를 초과하는 경우를 비롯하여, 발파작업에 의한 파쇄도를 개선하거나, 2차 소할의 비용을 절감하기 위해 사용된다. 또한 작업효율성을 극대화하여 공사기간을 단축시키며 비용을 절감하기 위해 전자뇌관을 이용하는 경우가 늘어나고 있는 추세이다. 본 사례는 도심지 내 GTX A 프로젝트에서 대단면 정거장 공사현장에 전자뇌관을 적용한 사례이다. 당 현장은 설계에 비전기뇌관을 이용하여 시공하도록 되어 있었으나, 발파작업을 진행하던 중 보안물건에 손상이 가해졌다. 이를 해결하기 위한 대안으로 전자뇌관을 이용한 발파공법을 검토하였다. 전자뇌관을 적용하여 발파소음과 진동에 대한 환경규제기준을 충족시켰으며 인근의 보안물건에 대한 손상을 방지할 수 있었다. 또한, 안전과 효율적인 시공을 위해 정거장 대단면을 1회 동시발파를 실시하였으며, 이를 통해 계획대비 공사기간을 단축시켰다.

• 한국소프트웨어감정평가학회 논문지
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• 제16권2호
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• pp.77-85
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• 2020

본 논문에서는 스마트 계약의 핵심 기술로 사용되는 분산원장 기술의 운영과 분산원장 기술의 구성요소에 대하여 연구하고 분산원장의 요소기술을 차세대 만물네트워크에 적용하기 위한 해결책으로 현재 ISO/IEC JTC1 SC6에서 표준화가 진행 중인 만물네트워크 프로토콜의 사물유저 소셜 그룹 관리 기능을 이용한 분산원장 기술의 프로토콜을 제시하였다. 만물네트워크의 사물유저 소셜 그룹 관리 기능은 안정적인 프로토콜 기능과 데이터 전송 관리를 제공하고 있으며 멤버 디스커버리기능, 데이터 전송 통로 관리기능 등의 그룹 관리 기능을 제공하고 있다. 분산원장 요소 기술을 상호 합의로 적용할 수 있는 서비스를 제공할 수 있어서 분산원장 노드들의 그룹 관리 기능에 도움이 될 것으로 예상하며 표준화가 진행되고 있는 ISO/IEC JTC1 SC6의 미래 네트워크 기능과 구조에 적극 반영하고자 한다.

• 한국비블리아학회지
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• 제20권2호
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• pp.59-73
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• 2009

도서관이 자료의 소장과 열람을 위한 공간만이 아닌 연구와 학습, 커뮤니케이션과 문화의 중심역할을 수행할 수있다면 '공간'으로서의 도서관은 무한한 가능성을 가질 수 있다. 또한, 실제(real)공간을 중시하는 전통적인 도서관과 가상(Cyber)공간의 활용을 중시하는 디지털도서관의 결합이라고 할 수 있는 하이브리드도서관 구현을 위한 바람직한 방안이 될 수 있다. 본 연구는 이와 같은 가능성을 위해 공간과 정보기술, 그리고 서비스의 효과적인 결합을 의미하는 Information Commons를 기반으로 하이브리드 도서관 모형을 제시하고자 하였다. 이를 위해 Information Commons 도입을 통한 서비스의 국내 외 사례 및 결합의 형태를 분석하였으며 운영을 위한 요소를 추출하였다. 또한, Information Commons 기반 하이브리드도서관의 서비스 개념 및 정보서비스 모형을 제시하였다.

• 대한토목학회논문집
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• 제26권4D호
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• pp.617-626
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• 2006

예비비의 산정은 건설공사에서 필연적으로 발생할 수뿐이 없는 예측불가능한 상황으로 인한 공사비의 증가와 공기의 연장에 대처하기 위해서이다. 예비비의 본 취지는 불확실한 요소로 인한 예기치 못한 공사비 증가에 대비하기 위한 수동적인 면에서의 전략도 있지만, 불확실한 요소의 분석을 통해 사전에 공사저해 요소를 제거하고자 하는 능동적인 면에서의 전략도 가지고 있다. 따라서 중장기적인 관점에서 예비비제도가 우리나라에 올바르게 정착되기 위해서는 공사종류별, 특성별 불확실한 요소로 인한 설계변경 사례에 대한 자료의 축적 및 면밀한 분석으로 적정한 예비비를 반영할 수 있어야 할 것이다. 이에 본 연구에서는 고속도로 공사라는 특정 공사에서 설계변경사례를 분석하여 공사비에 영향을 미치는 요소를 판별하고 회귀분석을 이용하여 예비비율을 산정하는 절차를 제시하고자 한다.

• 영어영문학
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• 제56권1호
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• pp.79-101
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• 2010

In "The Animal That Therefore I Am (More to Follow)," Derrida notices that he is being watched by his cat. He becomes ashamed of being naked in front of his cat. The sense of shame is a response to being reduced to the level of an animal. He is ashamed of being as naked as an animal. His next move is, therefore, to cover his nakedness from the gaze of his cat. By contrast, he realizes, the animal is not self-conscious of being naked and so does not shield its nudity. In a truer sense, then, the cat is not naked. Humans do not see animals for what they really are but what they project on them. Whereas the gap between man and animal is clearly identified by Derrida's philosophical discourse, the possibility of going beyond the gap can be suggested by fantasy stories in children's literature. Children's literature in Britain arose in the eighteenth century with the revival of traditional fairy tales and growth of literary fairy tales. Romanticism in the early nineteenth century contributed to opening up a new horizon for the concept of the child, in which the child is no longer defined as the object to be tamed and childhood imagination is glorified as a powerful means to reach the higher state, the spiritual origin prior to separation of Man from the 'thing-in-itself.' In The Wind in the Willows, animals talk and behave like humans. The anthropomorphic figuration of animals can be understood as a result of the one-sided projection of anthropocentric perspectives on animals rather than an interaction between humans and animals. Significant contradictions also emerge in this story, however, as traits particular to animals are vividly delineated even as the main didactic theme of good triumphing over evil reflects an anthropocentric projection on animals. An attempt to capture the true characteristics of animals and locate them in the text constitutes a remarkable achievement in The Wind in the Willows. This can be evaluated as an important step toward a more ecopocentric perspective on animals which appears in later children's fantasies like Charlotte's Web.

• 보건교육건강증진학회지
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• 제15권1호
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• pp.79-95
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• 1998

The purpose of this study was to investigate the sanitation affairs of general restaurants. The questionnaire survey on the attitude and knowledge toward sanitation, the attitude for sanitary administration and the sanitary education was conducted against new 600 restaurateurs who were educated from June 20 to July 11, 1996, at the administration hall's division of Kyungsangbook-do in charge of food industry that offered regular sanitary education to new restaurateurs annually. And the visit survey on sanitary practice was also conducted over 93 restaurateurs who obtained the commercial license for food service business. The findings from the survey were as follows; In regard to food sanitation, some 87.1 to 88.3% got the right knowledge about the reason and precaution of food poisoning, food's frozen or cold-storage, and the disposal of products after expiration of validity term. But it was about 20.8% to 50.0% who knew right about major precaution, storage temperature in refrigerator, fermented milk product's storage temperature and validity term. There was therefore a necessity for education in food sanitation. 38.2% of the subjects placed an emphasis on sanitary storage of foodstuffs as the most important thing in sanitary management. 33.8% emphasized cooking sanitation. The environmental sanitation was counted as the most important thing by 19.2%, and personal sanitation of worker was counted by 8.8%. There was differences in what they thought the most important thing was, according to the respondent's educational level and cooker. 86.6% replied it necessary to improve the sanitary level. The respondents who were younger or had better educational level emphasized more the need for it. Concerning health examination, 90.2% replied it necessary. 81.4% answered the reason was because there was a potentiality Quests might be infected with contagious disease. 78.5% pointed the need for sanitary education, but respondents with higher educational level less emphasized its needs. As the reason for poor sanitation, restaurateur's poor awareness about it was most frequently pointed out, by 46.9%. Cooking sanitation was most frequently counted, by 38.5%, as the first thing to be improved. As the most critical point in sanitary education, 34.5% indicated food's sanitary Quality control 30.9% mentioned sanitary treatment of kitchen facilities and peripheral environment, and 27.1% emphasized the summary of the general food sanitation. 77.7% answered to correct immediately in case of violating the Food Hygiene Law, and 12.0% replied to correct in the same case if they would get the order from public official or administrative action would be taken. Respondents with higher educational level answered more to correct immediately. What they wanted the government office to do toward sanitary improvement was a fund aid an facilities and management which was pointed out by 38.9%, a periodical sanitary education by 26.3% and a on-the-spot guidance of sanitary officials by 22.3%. In view of the food service business's sanitary practice, the rate of wearing a sanitary clothes was 32.9% in city and 35.0% in county. The rate of hand-washing without soap or non-washing at cooking was 73.9%, 85%, respectively. The rate of personnel sanitation was 34.2% in city and 50.0% in county. These things indicated the sanitation was not well practiced. To improve the poor sanitary conditions of the food service businesses, it is recommended to offer institutional backing and financial aid from administrative office, and encourage restaurateurs to take pride in their job. and conduct the sanitary education effectively by sanitary education institution.

• 한국건축시공학회지
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• 제5권1호
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• pp.123-129
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• 2005

This study is as a part of the new disposal and recycling plans of heat-resource waste of Daegu dyeing industrial center we tried to examine applicable possibility of crushed thing(waste aggregate) as aggregates for mortar and concrete. To examine applicable possibility of waste aggregate as a lightweight-aggregate for concrete and mortar, we carried this study by mainly property examination of concrete according to replacement ratio of waste aggregate. We carried slump, unit weight, compressive strength and bending strength test according to replacement ratio of waste aggregate. As the result of that, if we use waste aggregate, lightweight of concrete and mortar will be possible. Specially it shows a strength improvement effect of cement hardening according to using this so it is judged that applicable possibility as aggregate for concrete and mortar is very excellent.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 하계학술대회 논문집 C
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• pp.1982-1984
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• 2004

Stator coil of rotating machinery has shown different characteristics according to impregnated with coil or not. And this is major determinant of equipment's life. In this paper, PD characteristics is studied as a classification scheme between two specimens. Processing of the coil impregnation is very important thing because that influences on thermal and electrical characteristics of the coil. And then PD is occurring at the coil and causing insulation degradation. For processing statistical processing, PD data acquired from PD detector using PDASDA(partial discharge acquisition, storage and display system). And also these statistical distribution and parameter are applied to classify PD sources by neural networks. As a result of, Neural Networks have a good discrimination rate for classification PD sources.

• 산업경영시스템학회지
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• 제20권44호
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• pp.287-295
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• 1997

In existing technology planning, there is lack of considerations such as technology fusion, users' requirements of future, gap analysis between technology development and production, and industrialization process of development technology, that is, technology diffusion and technology transfer strategy. The most noticeable thing is that there is an obvious transition from supplier-centered to consumer-centered in the development of service or product because users' needs are getting a diverse and high level with the paradigm change of industry and society in the 21st century. So it is very important to design effectively a technology planning system under integration of R&D-production-sales system for satisfaction of customers' various choices. In this paper, we present considerations being required strategically in technology planning through analysis of mutual relationship and interface between technology planning, R&D and production system.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1995년도 하계학술대회 논문집 C
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• pp.1229-1231
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• 1995

XLPE cable, which has excellent electrical and thermal performance, has been widely used for HV transmission & distribution lines. The most important thing to produce the cable products having good performance is to set the optimal operating conditions of cable machinery. Because it is very difficult to measure the temperature of cable under curing process practically, it is necessary to evaluate the cable temperature by using the method to simulate real conditions numerically. In this work, We investigate the basic theory on transient heat transfer between curing tube and cable for making a numerical simulation program using computer. In this program, a differential equation is approximated by a infinite differential method and a few assumptions are used to simplify the model and minimize the calculation time of program.