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조광일 ( Cho Kwang-il ),문종훈 ( Moon Jonghoon ),이필구 ( Lee Pil-goo ),김진웅 ( Kim Jin-woong ) 한국구조물진단유지관리공학회 2020 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.24 No.2
리모델링 시공과 같은 추가적인 하중저항을 확보하기 위한 소규모 기초시공에서는 경제성, 시공성, 환경영향 등의 이유로 헬리컬 파일을 사용하고 있다. 좁은 공간에서 소규모 장비를 사용하여 3m의 길이 제약이 있는 파일을 연속적으로 연결하며 회전관입하므로 다양한 기술적 어려움이 있다. 이러한 헬리컬 파일의 시공성을 향상하기 위해 경제적이고 급속시공이 가능한 걸쇠형 연결부를 개발하였으며, 추가적으로 관입성 향상을 위한 나선형 날개와 신속한 시공이 가능한 두부 지압판을 개발하였다. 기술의 검증을 위해 시험시공을 수행하였으며 실제 현장에 본 기술을 적용함으로써 본 기술의 타당성을 확인하였다.
조광현 ( Kwang Hyun Cho ),박인화 ( In Hwa Park ),도재철 ( Jae Cheul Do ),장성준 ( Sung Jun Chang ),박노찬 ( No Chan Park ),권헌일 ( Huon Il Kwon ),박덕상 ( Duk Sang Park ) 한국가축위생학회 1996 韓國家畜衛生學會誌 Vol.19 No.2
Lungs from 109 slaughter pigs with gross lesions indicating enzootic Pneumonia of pigs(EPP) and 16 grossly normal lungs, all originating from seven different herds, were subjected to microbiological examinations. The microbiological studies were included both bacterial and mycoplasmal culture. From lungs of 125 slaughter pigs, 87.2% pigs were pneumonia lesions alone or complexly. Mycoplasma spp., pasteurella multocida (P. multocida), Streptococcus spp., and Actinobacillus pleuropneumoniae(A. pleuropneumoniae) were detected in 39.4%, 42.2%, 13.8%, and 3.7% of the pneumonic lungs, respectively. P. multocida was the most frequently isolated organism in pneumonic lungs. Mycoplasmas not isolated organism in 33.9% the pneumonic lungs even if there are gross lessions mycoplasmas. The amounts of pneumonia in lungs with Mycoplasma spp. alone, a concurrence of Mvcoplasma spp. and P. multocida, P. multocida alone, a concurrence of P. multocida and A. pleuropneumoniae, and a concurrence of Mycoplasma spp. and A. pleuropneumoniae were 10.1%, 22.7%, 18.7%, 25%, and 30%, respectively. These findings indicated that P. multocida might be involved in the pathogenesis of pneumonia in slaughter pigs. Mycoplasma spp. was also, in this study, associated with higher frequency of pneumonia. The frequency of pigs snout lesion grade 0~5 inclusive were 27.2%, 28%, 19.2%, 16%, 6.4%, and 3.2% from 125 slaughter pigs. 32(25.6%) pigs were positive and 13~30% in the pigs from seven herds were found to be infected with atrophic rhintis(AR). A total of 46 P. multocida strains in pneumonic lungs were further characterized by capsular serotyping and testing for production of dermonecrotic toxin. 42(91.3%) of strains were capsular A and 4(8.7%) were type D. Out of the type A and type D strains, 86% and 75% were toxigenic, respectively.
조광일 ( Cho Kwang-il ),문종훈 ( Moon Jonghoon ),이필구 ( Lee Pil-goo ),김진웅 ( Kim Jin-woong ) 한국구조물진단유지관리공학회 2019 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.23 No.2
다양한 리모델링 시공 중 추가적인 하중저항을 확보하기 위한 기초시공에서는 경제성, 시공성, 소음/진동 등의 이유로 헬리컬 파일을 사용하고 있으며, 좁은 공간에서 소규모 장비를 사용하여 회전관입하므로 파일의 길이가 3m로 제한되어 다수의 연결부가 소요된다. 이러한 연결을 위해 주로 가격이 낮은 pin 타입의 연결부가 사용되고 있으나 토크에 대한 저항력이 낮고 그라우팅이 어려운 단점을 가지고 있다. 이에 기존 대비 20% 이상 토크저항성을 가지며 동시에 경제성을 확보할 수 있는 새로운 헬리컬 파일 연결부를 고안하였고 유한요소해석을 통해 구조성능을 분석하였다.
건선 피부병소에서 표피세포의 증식 및 분화 - 건선 표피에서 DNA 합성세포 및 분화 표식자 발현의 검색 -
조광현(Kwang Hyun Cho),장승호(Seung Ho Chang),김영걸(Young Gull Kim),윤재일(Jai Il Youn),박상철(Sang Chul Park),함의근(Eui Keun Ham) 대한피부과학회 1992 대한피부과학회지 Vol.30 No.3
DNA replicating cells were detected in the psoriatic epidermis by anti BrdU antibody after incubating tissue sections biopsied in acute and chronic areas with BrdU. The expression pattern of No. 1 keratin, involucrin. filaggrin, loricrin and transglutaminase E was studied in the paraffin embedded sections of psoriatic specimen which showed various histopathological findings. The results are as follows 1) The labeling index of BrdU in lesional psoriatic skin was significantly greater than that in normal skin. The labeling index was greater in the clinically active lesion of psoriasis than that of the chronic lesion, which suggest that psoriatic lesions are composed of distinct lesions differing in activity. 2) In the epidermis of the psoriatic plaques with extensive parakeratosis or microabscesses at the base of the stratum corneum and absent granular layers, the expression pattern of five epidermal proteins appeared as follows : No. 1 keratin which is found in normal epidermis immediately above the basal layer, appeared several layers higher. Involucrin was detected in most of the suprabasal layers. Fillaggrin, loricrin and transglutaminase E showed negative expression. The results obtained in the present study suggest that the increment of DNA replicating cells and aberrant, maturation pathway of epidermis appear in active psoriatic plaques. (Kor J Dermatol 1992; 30(3): 291-302)
조광행(Cho, Kwang-Haeng),최현일(Choi, Hyun-Il) 한국부동산정책학회 2013 不動産政策硏究 Vol.14 No.2
In this study We hope to answer the question, “In real estate marketing, how to do brand management efficiently. In order to solve the research problem, we have established specific objectives of this study as follows. First, we should analyze the methodology of developing brand name in real estate marketing. Second, we should propose the brand strategy to establish brand equity in real estate. We have explored theoretical background to accomplish the research objectives by reviewing the related previous researches, reports, and case studies on marketing in real estate. The findings of this study can suggest the implications as follows. First, the methodology of developing brand name and evaluating brand power are analyzed. Secondly, the strategy of managing brand equity are specifically proposed. They will contribute to theoretical progress of understanding on brand in real estate. Our study enlarges general marketing to real estate marketing by analyzing brand power and brand management. However, our implications should be evaluated in the light of certain limitation. Because our study shows the characters of exploring study, the future study of cross-sectional design survey should be conducted so that brand power and brand management in real estate can be assessed more accurately.