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최홍렬(Heung Ryeol Choi),김명남(Myung Nam Kim),홍창권(Chang Kwun Hong),노병인(Byung In Ro) 대한피부과학회 1993 大韓皮膚科學會誌 Vol.31 No.3
Background : Alopecia totalis and alopecia universalis are uncomman and developed from 5-10% of the patients with alopecia areata. Objective : The authors perfcirmed a study for clinical obervations and the effects of treatments of alopecia totalis and alopecia universalis in order that this study may cointribute to further studies and treatments of them. Methods : The author performed a clinical study of 42 patients with alopecia totalis and alopecia universalis retrospectively in order to evaluate the clinical manifestation. and the effects of treatments from January 1984 to March 1992 at the department of Dermatology, College of Medicine, Chung Ang University. Results : 1. The incidence of alopecia totalis and alopecia universalis was 6.7% (42/623) among the alopecia patients who were occtipied 1.4% (623/44,839) among the all new dermatologic out patients. 2. The age distributions at the onset of disease showed a peak incidenced an age of less than 15 years (52.4%, 22/42) and the average age was 19.7 years. 3. The laboratory fi ndings showed decreased total T cell count in 1 case(1/10), inversed T/T ratio in 6 cases(6/10), poisitive anti-thyroglobulin anti-body in 3 cases(3/11), and abnormal serum levels of testosterone, esradiol and progesterone in 5 cases(5/22), 2 cases(2/14) and 8 cases(8/13), respectively. 4. The effects in the group treated with topical immunotherapy with DPCP(2,3-diphenylcyclopropenone) or DI CB(2,4-dinitrochlorobenzene) revealed no significant difference from those in the group treated with an intralesional injection of triamcinolone acetonide. 5. The response rates to treatment were make ily higher in the patients with alopecia totalis than alopecia uriiversalis, in cases where the duration of disease was less than 5 years, and in the patients associated with psychologic stress. Conclusion : These results suggested that alopecia totalis and alopepia aniversalis frequently occur in children, and some of them we eassociated with cell mediated immunity defects, autoantibody and endocrine factors. The patients with alopecia totalis, with short duration if disease and associated with emotional stress showed better therapeutic responses. (Kor J Dermatol 1993; 31(3): 341-348)
최흥렬(Heung Ryeol Choi),전태진(Tae Jin Chun),서성준(Seong Jun Seo),홍창권(Chang Kwun Hong),노병인(Byung In Ro) 대한피부과학회 1992 대한피부과학회지 Vol.30 No.2
Osteoma cutis is a primary cutaneous ossification, which has no preceding trauma or skin disease and no evidence of Albrights hereditary osteodystrophy n the patient or his family. The lesion appears as hard, round to irregular, sharply defined tumor of varying size within the skin or subcutis, and color ranges from flesh-colored to purple or brown. We report herein a case of osteoma cutis in a 32-year-old female, who had a 1 x 1cm sized, asymptomatic, round, flesh colored, hard nodule on the right side of her forehead for 5 years. Histopathologic examination showed mature bone with many ostocytes, osteoblasts, cement lines and Haversian canals in the dermis. (Kor J Dermatol 1992;30(2): 249-252)
Choi, Jae-Hyuk,Jang, Jinhyeok,Shim, Wonbo,Cho, Jeong-Min,Yoon, Sang-Jae,Choi, Chi-Hoon,Han, Heung Nam,Yu, Woong-Ryeol Elsevier 2019 COMPOSITE STRUCTURES -BARKING THEN OXFORD- Vol.229 No.-
<P><B>Abstract</B></P> <P>Accurate in-plane shear properties are essential to simulate the mechanical behavior of fiber-reinforced laminated composites. Herein, a digital image correlation technique was used to analyze unidirectional carbon fiber-reinforced composites by three shear-test methods (±45° in-plane, Iosipescu, and V-notched rail shear tests), focusing on the uniformity of shear deformation during each test. The V-notched rail shear test imposed the most uniform shear deformation. This test, however, still imposed non-uniformity around the deformation regime for the in-plane shear modulus calculation, which needed to be accommodated. The non-uniformity was virtually characterized by a combination of various material properties using finite-element analysis. A universal correction factor of 0.925 resolved the non-uniformity involved in the V-notched rail shear test. This enabled the in-plane shear modulus of unidirectional carbon fiber- or glass fiber-reinforced composites to be accurately determined.</P>
화예상품의 시장환경 분석 도구에 관한 연구 - 구매자 및 판매자를 위한 설문 기획을 중심으로 -
최사랑 ( Choi Sa Rang ),김흥렬 ( Kim Heung Ryeol ) 한국화예디자인학회 2017 한국화예디자인학 연구 Vol.36 No.-
본 연구는 화예상품의 시장환경을 분석하기 위한 도구를 설문형식으로 설계하여 현 시장을 분석하고 경제활동의 주체인 구매자와 판매자를 구분하여 기획하였다. 시장환경 분석을 위해서 현재의 구매, 판매의 실태를 파악하는 문항과 꽃에 대한 정보제공, 이해정도를 파악하기위한 구조로 주요문항을 구성하였다. 또한 화예산업에서 많은 부분을 차지하는 소비상품인 경조사상품에 대한 생각을 묻는 문항, 화예상품의 관리 및 폐기에 대한 실태와 의견을 파악하기 위한 문항도 제시하였다. 본 설문을 통해 화예산업의 통계적, 수치적 자료 등의 기본자료를 수집, 추출하여 기초연구자료의 토대를 마련하고자 한다. 이를 기반으로 판매자 관점과 구매자 관점간의 상관관계를 파악하여 신뢰도 높은 데이터를 추출하여, 새로운 구매 방법을 제안하고, 화예에 대한 인식향상을 위한 가이드라인을 제안하는 등 여러 활용방안을 모색하는 연구를 진행할 것이다. This study analyzed the current market by designing the tools to analyze the market environment of the products of flower products in the form of questionnaires, and designed the customer and supplier which are the subjects of economic activities separately. In order to analyze the market environment, the main items were composed with the structure to understand the degree of understanding, providing information about the current purchase and sales, information about flowers and flowers. In addition, the question to ask about the idea of the congratulatory gift of commodity which is a large part of the flower industry and the question about the management and disposal of the commodity of the flower product are also presented. Through this questionnaire, basic data such as statistical and numerical data of flower industry are collected and extracted to lay the foundation of basic research data. Based on this, we study the correlation between the customer and supplier perspectives, extract reliable data, propose new purchasing methods, and propose guidelines for improving perception of flowers.