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정상훈(Chung, Sanghoon),김지은(Kim, Jieun),유한주(Yoo, Hanjoo) 한국서비스경영학회 2018 서비스경영학회지 Vol.19 No.3
Kano model provides logical explanation on how users’ requests affect their level of satisfaction in terms of products or services, and clearly explains methods that can be used to measure such correlations. Thus, based on researches on Kano model, we intended to distinguish which service quality factors can increase the customer satisfaction. The result of the study shows that; first, implementing Kano model, this paper has categorized webtoon services’ qualities into attractive, one-dimensional, must-be and indifferent qualities and provided theoretical basis to design distinguished services for webtoon services; second, based on researches on webtoon service and Kano model, this study implies that which quality factors need to be improved in order to increase the webtoon service quality.
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일본잎갈나무 천연갱신지의 종자 결실 및 벌채 유형별 종자 비산 특성
정준모 ( Junmo Chung ),김현섭 ( Hyun Seop Kim ),정상훈 ( Sanghoon Chung ) 한국산림과학회 2021 한국산림과학회지 Vol.110 No.3
본 연구는 일본잎갈나무 인공림에서 천연하종갱신을 이용한 후계림 조성 방법을 제안하고자 수행되었다. 이를 위해 2016년 경기도 가평에 모수작업과 개벌작업을 실시하여 시험지를 조성하고, 2014년에 조성된 경상북도 봉화의 시험지와 함께 천연갱신지의 종자결실 및 종자낙하 특성을 분석하였다. 그 결과, 결실이 좋은 해에 Ⅴ영급 일본잎갈나무의 개체 목당 종자 수는 690,340립이며, 모수가 ha당 25본인 일본잎갈나무 천연갱신지에서는 ha당 1,380만립의 종자가 결실되는 것으로 추정되었다. 종자의 비산은 9월부터 시작되었으며, 11월까지 낙하된 종자의 발아율은 종자품질 기준인 40%를 넘는 것으로 나타났다. 갱신유형별 종자 낙하량은 보잔목작업, 모수작업, 개벌작업 순이었고, 보잔목작업이 종자의 균등한 비산에 유리한 것으로 나타났다. 따라서 일본잎갈나무의 천연갱신을 위한 벌채와 갱신상 조성 시기는 종자가 비산하는 9월 이전이 효과적이고, 보잔목작업이 균일한 종자공급에 유리한 방법인 것으로 판단된다. This study proposed a field-applicable natural regeneration method using natural seeding to afforest a secondary growth forest after felling in Larix kaempferi plantations. In 2016, an experimental site was established usingseed- tree and clear-cutting methods in Gapyeong, Gyeonggi-do, South Korea. Characteristics of seed fructification and inflow in the natural regeneration site were analyzed along with an experimental site in Bonghwa, Gyeongsangbuk-do, which was established in 2014. As a result, the number of seeds per individual tree of V age class L. kaempferi was 690,340 seeds in a good year, with an estimated 13.8 million seeds per ha fruited in natural regeneration sites of L. kaempferi with 25 seed-trees per ha. Seed dispersal began in September and germination rates of seeds dispersed until November were greater than 40%. Reserved seed-tree sites showed the highest amount of seed inflow, followed by the seed-tree site and clear-cut site in descending order. The reserved seed-tree method performed better than other methods for evenly scattering seeds. Therefore, the timing of logging and seedbed generation for natural regeneration of L. kaempferi is estimated to be most effective before September when seeds are purposefully scattered using the reserved seed-tree method as an effective method for uniform seed supply.
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마자브라우드(Mazabraud) 증후군 환자의 증례보고
홍정근,정상훈,임진수,권호 大韓成形外科學會 2000 Archives of Plastic Surgery Vol.27 No.2
Mazabraud's syndrome is rare benign disease characterized by the association of intramuscular myxoma and fibrous dysplasia of bone. We present a case of multiple intramuscular myxomaas of the right forearm with polyostotic fibrous dysplasia. X-rays suggested fibrous dysplasia of adjacent bones and CT scans showed two intramuscular cystic masses on the right forearm. 99mTc bone scintigraphy also showed a markedly increased uptake in the skull, both scapulas, both clavicles and both humeri. The masses were successfully removed. Fibrous dysplasia of the radius and myxoma were confirmed by pathologic study.
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