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홍상표,구성회,우세홍,김을환,최한영 서울보건대학 1997 서울보건대학 부설 한국보건과학연구소 논문집 Vol.4 No.1
LHR(Landfill Site Hazard Ranking Model)was developed for assessing the relative hazard of landfill sites by using the method of value-structured approach. LHR consists of combining a multiattribute decision-making method with a qualitative risk assessment approach. AHP(Analytic Hierarchy Process)based on the pairwise comparison method was applied to determine weights of landfill site factors related. To determine the relative hazard of landfill sites evaluated, hydrogeological factors, waste characteristics factors and recptors factors were evaluated by LHR. LHR can help decision-makers prioritization of remediation of landfill sites through the relatively convenient and concise evaluation metl10d of landfill site features related. LHR focuses mainly on pathways of groundwater and surfacewater for evaluating landfill hazard to receptors including humans. To validiate the applicability of LHR, Nanjido Landfill site, Metropolitan Landfill site, and Hwasung Landfill site were evalulated. LHR scores of the above-mentioned landfills were 55, 19, and 7 respectively.
박성회 동의공업대학 1999 論文集 Vol.25 No.1
This study is for preserving his health by the exercise which prevent disease taken frequently today during dairy life. The conclusions of this study com be summarized as follows. 1. We always have to take good care of ourselves by doing Sport for all regularly. 2. We have to do Sport for all to be able to show our abilities efficiently in high level life style. 3. Sport for all will have family and group keep their unity strong. 4. In the upcoming 21st century, As the life time sport, The importance of the Sport for all is more emphasized for the better life environment.
가덕도 주변 해역에서 채집된 실양태 (Repomucenus valenciennei)의 식성
허성희,백근욱 한국어류학회 2003 韓國魚類學會誌 Vol.15 No.4
실양태의 식성을 연구하기 위해 가덕도 주변해역에서 소형 기전저인망을 이용하여 1998년 1월부터 12월까지 채집된 실양태의 위 내용물을 조사하였다. 실양태의 가장 중요한 먹이 생물은 이매패류(Bivalvia)였다. 다음으로 단각류(Amphipoda), 갯지렁이류(Polychaeta), 요각류(Copepoda), 쿠마류(cumacea)가 비교적 많이 섭이 되었다. 그 외에 패충류(Ostracoda), 복족류(Gastropoda), 거미불가사리류(Ophiuroidea), 게류(Brachyura), 어류(Pisces) 등이 위 내용물 중 발견되었으나, 그 양은 많지 않았다. 실양태는 성장함에 따라 먹이생물의 전환이 명확히 나타났는데, 체장 2~4㎝의 작은 개체들은 단각류와 요각류를 주로 먹었다. 그러나 6㎝ 이상 크기의 개체들은 이매패류와 갯지렁이류를 주로 섭이하였다. We examined the stomach contents of Repomucenus valenciennei collected monthly by a small otter trawl in the coastal waters of Gadeok-do, Korea, from January to December 1998. The main prey items of R. valenciennei were bivalves, amphipods, polychaets, copepods, and cumaceans. Its diet also included small quantities of ostracods, gastropods, ophiuroids, crabs, and fishes. It showed distinct ontogenetic changes in feeding habits. Small individuals (2-4㎝ SL) preyed mainly on amphipods and copepods. However, individuals over 6 ㎝ SL preyed mainly on bivalves and polychaets.
김상회,유은나 한국관광정책학회 2002 觀光政策學硏究 Vol.8 No.1
This study identifies Korean outbound travelers' characteristics by clusters of the travel agent select scale, and investigates the differences between these clusters on travel behavior feature and socio-demographic characteristics. Authors took a on-site self-administered survey of 237 visitors to outbound tourism destination. Analysis purpose were proposed and tested by factor analysis, cluster analysis, and cross-tab analysis. Four distinctive clusters were found. The clusters revealed distinctive differences on travel selected behavior feature and socio-demographic characteristics.
임희순,김병국,정성수 전남대학교 치과대학 2000 전남치대논문집 Vol.12 No.1
Background : The purpose of this study was to investigate whether there were any changes in fungiform papilla with advancing age. Being senile, patients with tongue disease have tended to be increased in prevalence, they will require medical care to improve the quality of life. Methods : The ninty-seven subjects (71 males and 26 females) were included for the study and they are categorized into 7 age groups (0-9, 10-19, 20-29, 30-39, 40-49, 50-59, and above 60 age group). Specimens were obtained from autopsy. 0.25㎠ sized tissue was taken from the tip of the tongue and midlateral region. The number of fungiform papilla in the tip of tongue and midlateral region were counted using an darkfield Quebeg colony counter. After hematoxyline-eosin staining, fungiform papilla, circumvallate papilla were observed with light microscopy. By using scanning electron microscope, the surface of the fungiform papilla was observed. Results : There was no change of the number of fungiform pailla in the area tip of tongue and midlateral region with age. Fungifrom pailla in dorsal surface of tongue transformed hemispheric form to cuboidal form with aging. Tongue fissures were found above twenties. At the light microscopic examination, squamous metaplasia, epithelial hyperplasia, keratohyaline granules with aging were examined. For the scanning electron microscopic examination, outline of fungiform papilla was circular, superficial surface in fungifrom papilla was smooth ; only a few desquamating cells were seen. With aging microplica, microbiae colony, complex of kerainized cells and increase in depth of keratin layer were noted. The superficial cells that had pitted in appearance and cell boundaries are overlapped, also showed the irregular pattern with aging, but there was no significant dirrerence between both sexes. Conclusions ; The number of fungiform papilla was not decreased by aging, its general morphology are maintained even in old age. Any age-relative differences in taste behavior could not be attributed to degenerative changes in fungiform papilla.
티타늄 임플랜트의 표면 마무리 상태 및 NaOH 수용액 침적이 유사체액 중에서의 인산칼슘 석출에 미치는 영향
정회웅,최규형,이민호,배태성 대한치과기재학회 1999 대한치과재료학회지 Vol.26 No.3
The purpose of this study was to examine whether the precipitation of calcium phosphate on titanium implant are affected by surface modification. To improve the bone conductivity of the Cheil implant(Cheil Pharma & Instrument Inc), samples were divided into 3 groups. Group 1 was untreated, group 2 was immersed in 5M-NaOH solution at 60℃ for 24 hours, and group 3 was immersed in 5M-NaOH solution at 60℃ for 24 hours and heat-treated at 600℃ for 1 hour. And then, all specimens were immersed in the MEM Eagle's medium whose composition was similar to that of extracellular fluid for 30 days. After immersion, the surfaces were observed with scanning electron microscope. The results obtained were summarized as follows; 1. The surface of Branemark implant showed more regular and smooth machined surface than that of Cheil implant. 2. The precipitation of the calcium phosphate on implant surface was increased by the immersion in the NaOH solution, and more highly accelerated by heat treatment. 3. The precipitation of the calcium phosphate on titanium implant was lower than that on the polished titanium surface.