하악골 절제술후 재이식된 돌결자가골 재이식 : 치험 3례

김 식,김수관,김운규,김수민,류종희,이준길,조경안,김수흥,정태영,여환호 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.2

We described three cases of immediate reimplantation of a frozen-thawed autogenous mandible composed of a mixture of iliac bone, marrow, and particulate hydroxyapatite in tumors of the mandible. Acceptable outcomes were obtained in three patients who underwent immediate autogenous mandibular graft reconstruction. The conditions leading to successful outcome of the procedure are also discussed. Reimplantation of frozen autogenous lesioned mandible was performed in three patients with mandibular tumors. Two reimplanted grafts survived without complications following surgery. One case had postoperative infection that resolved with appropriate antibiotic treatment. There were no recurrences of the primary lesions. Satisfactory facial contour after surgery was achieved. These results are most promising, and we believe that, with further refinement, this technique will offer a new and acceptable modality for facial reconstruction in patients with cancer.

Metagenomic Analysis of Fungal Communities Inhabiting the Fairy Ring Zone of Tricholoma matsutake

( Miae Kim1 ),( Hyeok Jun Yoon ),( Young Hyun You ),( Ye Eun Kim ),( Ju Ri Woo ),( Yeong Gyo Seo ),( Gyeong Min Lee ),( Young Ja Kim ),( Won Sik Kong ),( Jong Guk Kim ) 한국미생물 · 생명공학회 2013 Journal of microbiology and biotechnology Vol.23 No.10

Tricholoma matsutake, an ectomycorrhiza that has mutual relationships with the rootlet of Pinus denisflora, forms a fruiting body that serves as a valuable food in Asia. However, the artificial culture of this fungus has not been successful. Soil fungi, including T. matsutake, coexist with many other microorganisms and plants; therefore, complex microbial communities have an influence on the fruiting body formation of T. matsutake. Here, we report on the structures of fungal communities associated with the fairy ring of T. matsutake through the pyrosequencing method. Soil samples were collected inside the fairy ring zone, in the fairy ring zone, and outside the fairy ring zone. A total of 37,125 sequencing reads were obtained and 728 to 1,962 operational taxonomic units (OTUs) were observed in the sampling zones. The fairy ring zone had the lowest OTUs and the lowest fungal diversity of all sampling zones. The number of OTUs and fungal taxa inside and outside the fairy ring zone was, respectively, about 2 times and 1.5 times higher than the fairy ring. Taxonomic analysis showed that each sampling zone has different fungal communities. In particular, out of 209 genera total, 6 genera in the fairy ring zone, such as Hemimycena, were uniquely present and 31 genera, such as Mycena, Boletopsis, and Repetophragma, were specifically absent. The results of metagenomic analysis based on the pyrosequencing indicate a decrease of fungal communities in the fairy ring zone and changes of fungal communities depending on the fairy ring growth of T. matsutake.

GLASS/UR계 복합재료의 파괴에 미치는 NOTCH반경의 영향

김귀식,오맹종,박경석,김주봉 濟州大學校 工科大學 産業技術硏究所 1992 産業技術硏究報告 Vol.3 No.-

This study is investigated by experimental method and FEM about the effect of notch root radious(ρ) on the fracture of GFRP. The smaller ρ showed the fracture behavior which was mainly caused by the propagation of the stable crack, but the fracture behavior in the larger ρ was mainly caused by the spread of damage. The experimental value of the nominal stress could be estimated by FEM simulation and the load-displacement curve could also be drawn. According to the results simulated damage zone by FEM. as the ρ is smaller, the damage begin at low stress.

GLASS/UP系 複合材料의 破壞에 미치는 NOTCH平徑의 影響

김귀식,박경석,오맹종,김주봉 濟州大學校工科大學附屬産業技術硏究所 1992 尖端技術硏究所論文集 Vol.3 No.-

This study is investigated by experimental method and FEM about the effect of notch root radious(ρ) on the fracture of GFRP. The smaller ρshowed the fracture behavior which was mainly caused by the propagation of the stable crack, but the fracture behavior in the larger ρwas mainly caused by the spread of damage. The experimental value of the nominal stress could be estimated by FEM simulation and the load-displacement curve could also be drawn. According to the results simulated damage zone by FEM, as the ρis smaller, the damage begin at low stress.

마산연안지역의 국지풍 순환 및 대기오염물질 확산에 관한 연구

김유근,이화운,문윤섭,김해동,원경미,정우식,오인보 부산대학교 환경문제연구소 1997 環境硏究報 Vol.15 No.1

To investigate a horizontal windrose and the mixing height in Masan coastal area, a local atmospheric flow and the concentration of air pollutants were analyzed by abserved data from AWS, airsonde and air sampler. The land-sea breeze model and the ISCST2 model of U. S. EPA(Environmental Protection Agency) were used to predict the concentration of air pollutants such as SO2 and TSP. As a result, during spring the principal wind direction in the Masan region is mainly represented by windrose of the WNW and NW, which can be induced by land breeze and the SE and SSW of sea breeze even if weak wind speed. The mixing height during the measurement was marked with the range from 400 m(0900 LST) to 1450 m(1500 LST), and the height of an inverse layer was presented as the range from 30 m(2100 LST) to 150 m(0300 LST). It is very important to cosider the local wind field for the accurate diffusion and movement of air pollutants in coastal urban area. The atmospheric flow was simulated by the two-dimensional local wind model upon considering the orographic characteristics such as land-sea contrast, mountain valley and urban building. The result of air quality simulated by ISCST2 support that the dispersion pattern of the pollutants in that area was followed as local circulation system in coastal urban area.

부산지역 환경관련 제조업의 산업연관분석

이대식,김경필 釜山大學校 商科大學 2001 釜山商大論集 Vol.72 No.-

The purpose of this paper is to evaluate the industrial importance of the environment industry in Pusan through regional input-output analysis. In the absence of the consensus on the definition and scope of environment industry and related data, this research inevitably focuses on environmental manufacturing industry. There are various techniques in converting the coefficients of a national table to those of a regional table. Among them, it is said that RAS procedure is most widely used method. So that method is adopted also in this research. The regional table can be obtained through 360 iterative adjustments of rows and columns by using GAUSS program. The empirical findings of this research show that among the manufacturing industries in Pusan environmental manufacturing industry has relatively strong backward linkage effect and the weakest forward linkage effect. From the above findings, if the demands for environmental industry in Pusan can be created by government policies, we can infer that the growth of other industries as well as environmental industry can be expected.

부산광역시의 대기질 변화경향 및 특성에 관한 연구

이화운,김유근,원경미,홍정혜,문윤섭,장난심,정우식 부산대학교 환경문제연구소 1997 環境硏究報 Vol.15 No.1

초등 사회과 3학년 지역화 교수·학습자료개발 연구

홍기대,손정선,김언식,김용조,이광성,김경운 光州敎育大學校 初等敎育硏究所 2002 初等敎育硏究 Vol.17 No.-

The purpose of this study is in developing locally-oriented teaching-learning materials to motivate students to effectively take part in activities using map and in improving the field work of social studies to plan a map learning and to give them the ability of practice. It represents the right order involved in teaching the activities using map after doing preceding learning : classroom, playground, and the environs of the school including to some learning methods such as a puzzle map, a correlative of learning. Field trip study planning and lesson-plan are designed in case of Sewage disposal plant, Duknam filtration plant, Bonchon industrial complex relating to field trip study. There are some effects expected which follow through this study. First, teachers are able to draw learner's interest in finding learning sources directly through the community where they live. Second, learners have active participation in class, motivation, drawing their interests through map learning by doing preceding study of learner-centered. Third, teachers can make use of it as useful tools to get high achievement goal with self-direct learning.

Characterization and Genomic Analysis of Novel Bacteriophage ΦCS01 Targeting Cronobacter sakazakii

( Gyeong-hwuii Kim ),( Jaegon Kim ),( Ki-hwan Kim ),( Jin-sun Lee ),( Na-gyeong Lee ),( Tae-hyun Lim ),( Sung-sik Yoon ) 한국미생물생명공학회(구 한국산업미생물학회) 2019 Journal of microbiology and biotechnology Vol.29 No.5

Cronobacter sakazakii is an opportunistic pathogen causing serious infections in neonates. In this study, a bacteriophage ΦCS01, which infects C. sakazakii, was isolated from swine feces and its morphology, growth parameters, and genomic analysis were investigated. Transmission electron microscopy revealed that ΦCS01 has a spherical head and is 65.74 nm in diameter with a 98.75 nm contracted tail, suggesting that it belongs to the family Myoviridae. The major viral proteins are approximately 71 kDa and 64 kDa in size. The latent period of ΦCS01 was shown to be 60 min, and the burst size was 90.7 pfu (plaque-forming units)/ infected cell. Bacteriophage ΦCS01 was stable at 4-60°C for 1 h and lost infectivity after 1 h of heating at 70°C. Infectivity remained unaffected at pH 4-9 for 2 h, while the bacteriophage was inactivated at pH < 3 or >10. The double-stranded ΦCS01 DNA genome consists of 48,195 base pairs, with 75 predicted open reading frames. Phylogenetic analysis is closely related to that of the previously reported C. sakazakii phage ESP2949-1. The newly isolated ΦCS01 shows infectivity in the host bacterium C. sakazakii, indicating that it may be a promising alternative to antibacterial agents for the removal of C. sakazakii from powdered infant formulas.

Prediction of Tensile Strength of a Large Single Anchor Considering the Size Effect

Kim, Kang-Sik,An, Gyeong-Hee,Kim, Jin-Keun,Lee, Kwang-soo Korea Electric Power Corporation 2019 KEPCO Journal on electric power and energy Vol.5 No.3

An anchorage system is essential for most reinforced concrete structures to connect building components. Therefore, the prediction of strength of the anchor is very important issue for safety of the structures themselves as well as structural components. The prediction models in existing design codes are, however, not applicable for large anchors because they are based on the small size anchors with diameters under 50 mm. In this paper, new prediction models for strength of a single anchor, especially the tensile strength of a single anchor, is developed from the experimental results with consideration of size effect. Size effect in the existing models such as ACI or CCD method is based on the linear fracture mechanics which is very conservative way to consider the size effect. Therefore, new models are developed based on the nonlinear fracture mechanics rather than the linear fracture mechanics for more reasonable prediction. New models are proposed by the regression analysis of the experimental results and it can predict the tensile strength of both small and large anchors.