고로슬래그시멘트를 사용한 다공성 황토콘크리트의 성능 평가

김황희,강수만,박종식,박상우,전지홍,이진형,차상선,박찬기,Kim, Hwang-Hee,Kang, Su-Man,Park, Jong-Sik,Park, Sang-Woo,Jeon, Ji-Hong,Lee, Jin-Hyung,Cha, Sang-Sun,Park, Chan-Gi 한국농공학회 2010 한국농공학회논문집 Vol.52 No.3

This study aims to evaluate a porous concrete using hwang-toh, blast furnace slag and blast furnace slag (BFS) cement instead of type I cement. The tests that were carried out to analysis the properties of porous hwang-toh BFS cement concrete included compressive strength, continuous void ratio, absorption rate, and pH value, repeated freezing and thawing test were conducted. Test results indicated that the performance in porous hwang-toh concrete are effective on the kaoline based binder materials. The pH value were shown in about 9.5 ~ 8.5. The compressive strength was increased and void ratio was decreased with increasing the kaoline based binder materials, respectively. The void ratio and compressive strength were in the range of about 21 ~ 30 %, 8 ~ 13 MPa, respectively. The increased in void ratio of more than 25 % is showed to reduce the resistance of repeated freezing and thawing. Also, the resistance of repeated freezing of thawing and the compressive strength of porous hwang-toh BFS cement concrete are independent with hwang-toh content and BFS cement amount. But, the void ratio was decreased with increasing the high volume hwang-toh contents (more than 15 %).

섬유보강 다공성 옥상녹화 황토콘크리트의 물리·역학적 및 온도변화 특성 평가

오리온,김춘수,김황희,전지홍,권완식,박찬기,Oh, Ri On,Kim, Chun Soo,Kim, Hwang Hee,Jeon, Ji Hong,Kwon, Wan Sig,Park, Chan Gi 한국농공학회 2013 한국농공학회논문집 Vol.55 No.4

The physical, mechanical, water purification and temperature properties of fiber reinforced porous hwang-toh green roof concrete have been evaluated in this study. The effect of the depending on replacement ratio of blast furnace slag to cement was investigated such that the replacement ratio is varied to 0 % and 30 %. Also, the replacement ratios of hwang-toh were 0, 20 and 30 %. The polyvinyl alcohol fiber was used for the reinforcing fiber. A series of pH test, unit weight, void ratio, compressive strength, after purification and variation of temperature test have been performed to evaluate the performance, water purification effect and temperature properties of the fiber reinforced porous hwang-toh green roof concrete. The test results indicate that the physical and mechanical properties of fiber reinforced porous hwang-toh green roof concrete is affected by the replacement ratio of the blast furnace slag and hwang-toh contents. Results of purifying water showed that the water purification effect of porous hwang-toh green roof concrete is about 40 %. Also, the temperature properties test results indicate the green roof blocks using fiber reinforced porous hwang-toh green roof concrete have insulation and temperature reduction effect.

세계유산 지역주민, 그들은 행복한가?

황희정(Hee Jeong Hwang) 한국관광연구학회 2015 관광연구저널 Vol.29 No.3

It frequently happens that local residents’ opinions are ruled out when world heritages are registered and managed. World heritage committee(WHC) has recently given attention to the local residents’ rights with regard to their exclusion issue. At this juncture it is considerably important to examine domestic local residents who inhabit world heritage areas and their experiences. Suwon Hwasung, one of prominent world heritages of Korea, is no exception. not only did the related government not acknowledge or recognize the local residents’ rights, but also the locals have completely excluded from the entire stages of a management and applications. Given these circumstances, this study analyzed the effects of non-recognition perception towards the local residents on their settlement intentions. The concepts of the non-recognition perceptions are divided into three subordinate concepts. The result of this analysis shows that two out of three non-recognition concepts are closely related to the policy satisfactions and settlement intentions of the local residents. It is obvious that the pervasive non-recognition perception brings about the locals’ negative awareness of a local tourism business, which can be substantially related to their settlement intentions. The big goal of a local tourism business is to develop the specific area. We need to reconsider the goal and the direction of a local tourism business with a lens of local residents.

학술지 연구윤리 위반 적발 사례

황희중(Hee-Joong Hwang),윤명길(Myoung-Kil Youn) 한국유통학회 2016 International Forum on Business Convergence (IFBC) Vol.2016 No.-

한국유통과학회(KODISA)의 유통과학연구(JDS)에서는 지난 1년간 온라인논문투고시스템을 유지하면서 연구윤리 위반 기준을 학회 홈페이지에 공지함으로써 연구자들에게 연구윤리 위반 가능성에 대한 불안을 해소시켜 주고 창의적인 연구풍토를 만들어 왔다. 이로써 유통과학연구는 사회과학 학문 분야 학술지 가운데 연구윤리 분야에서 가장 모범적이고 선도적인 학술지의 위상을 확보하게 되었다. 유통과학연구는 연구 윤리 가운데 가장 문제되는 표절과 이중(중복)게재를 중심으로 투고된 논문을 검증하고 있다. 이를 위해 논문유다고 검사 프로그램을 활용하기도 하지만 편집위원회와 심사자들이 투고된 논문의 내용을 면밀히 살펴보고 확실한 연구윤리 위반 증거를 제시하여 투고자들에게 통보하고 있다. 본 연구를 통해 최근 적발된 연구윤리 위반 검증 사례를 중심으로 현행 학회 연구윤리 검증 시스템과 연구윤리 규정을 면밀히 검토한 후 문제점을 추출해서 그에 대한 개선방안을 모색할 것이다.

Surface 및 Solid 방식의 비교를 통한 Parametric 기법의 토공물량산출 방법

황희석(Hwang Hee Su),이재홍(Lee Jae Hong),김태영(Kim Tae Young) 한국BIM학회 2018 KIBIM Magazine Vol.8 No.1

There exists no precedented case of quantity take-off, using parametric modeling, from BIM-based irregular structures. Civil 3D provides earthwork quantity take-off based on surface modeling. Generally, designers should enter data into the specification additionally after extracting quantity estimation from earthwork modeling design. The objective of this report is to suggest the method from quantity take-off to specification of BIM-based earthwork quantities. We intend to investigate earthwork take-off method by Civil3D and explain why parametric information extraction is required for quantity estimation and specification and how information of earthwork quantity based on solid and surface modeling is connected to open quantity take-off module. It is highly expected that this suggestion would be the practical methodology of earthwork quantity take-off and specification in the field of civil engineering.

관광객의 진정성 경험을 통한 관광지로의 장소 구성

황희정(Hee Jeong Hwang),윤현호(Hyun Ho Yoon) 한국관광연구학회 2016 관광연구저널 Vol.30 No.1

A regional culture or a story is a good material for a regional tourism and its development. However, the Fairtale Village, the research subject of this study, is a good example of a region that has developed as a tourist attraction, by carrying forward a huge mural project, not relying on the regional cultures and stories. This village lagged behind for a long time, recently, has turned to an energetic area due to the active influx of tourists. This study focuses on the phenomenon of the village and attempts to bring out an in-depth understanding of what it means to be the phenomenon in a way that a living place for local residents gradually transforms to a tourist attraction. The result shows that despite the fact that tourists are well awar/e of the unreality and fabrication of the village, not only most of them enthusiastically interactwith the contents of the village, but also they take an active part in experiences. We can draw the conclusion that the fairy tale village, not based on an own culture and history, by having developed and implemented diverse tour experiences in contents, now has become a representative of a significantly meaningful place for the tourism. At the initial stage of creating the Fairtale Village, local residents were in conflicts with tourists. This study argues that the conflicts have been completely resolved now and the village has gained an exceptional meaning in terms of a regional tourism.

노인의 동거형태에 따른 자아존중감, 건강상태, 생활만족도에 관한 조사연구

황희원(Hee-won Hwang),박오장(Oh-Jang Park) 전남대학교 간호과학연구소 2007 Nursing and Health Issues(NHI) Vol.12 No.1

Ⅰ. 서 론 II. 연구 방법 Ⅲ 연구결과 Ⅴ. 논 의 Ⅵ. 결론 및 제언

초공동화 수중운동체용 가스발생기의 점화특성 연구

황희성(Hee-Seong Hwang),윤현걸(Hyun-Gull Yoon),이효남(Hoy-Nam Lee) 한국추진공학회 2018 한국추진공학회 학술대회논문집 Vol.2018 No.5

환기 공동용 초공동화 수중운동체의 실험적 연구

황희성(Hee-Seong Hwang),윤현걸(Hyun-Gull Yoon),이효남(Hyo-Nam Lee) 한국추진공학회 2018 한국추진공학회 학술대회논문집 Vol.2018 No.12

분산객체 처리 성능향상을 위한 디자인 패턴

황희정(Hee-Joung Hwang),최진탁(Jin-Tak Choi) 한국정보기술학회 2007 Proceedings of KIIT Conference Vol.2007 No.-

보다 많은 애플리케이션이 컴포넌트 및 서비스와 상호작용을 위한 네트워크에 포함되고, 그와 같은 분산 아키텍처 에서의 성능향상에 대한 이슈는 점점 중요해 지고 있다. 분산객체에 있어 함수나 메서드 호출시간은 경우 여전히 중요한 문제이기는 하지만 분산 컴포넌트간의 커뮤니케이션 시간에 대한 교려가 성능에 대한 새로운 이슈로 주목받고 있다. 본 논문 에서는 쇼핑카드 사례를 들어 분산 디자인에 대한 연구를 진행 했다. 본 논문에서 제안하는 디자인 패턴은 매우 단순하지만 필요한 모든 요소를 모두 가지고 있다. 제안된 디자인 패턴은 분산호출을 줄임으로서 덜 세분화된 커뮤니케이션을 유지하고 다중 원격 호출을 하나로 조합하는 D-List 패턴을 제안한다. The more applications evolve into networks of interacting components and services, the more important it becomes to consider the potential performance issues that typically arise from such distributed architectures. The execution time of certain functions or methods is certainly still important, but the communication time between distributed components now gains influence in terms of its affect on performance considerations. We study distributed designs by the means of a shopping cart example. This design pattern is quite simple, but still powerful enough to provide important insights into good and not so good practices. It shows that keeping the communication coarse-grained by reducing the number of remote calls is a good practice. It also proposes an ID-Lists pattern to combine multiple remote calls into one.