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Residue 수체계에 의한 복소 프로세서의 이론적 고찰
김덕현,김재공,Kim, Duck-Hyun,Kim, Jae-Kong 대한전자공학회 1983 전자공학회지 Vol.20 No.6
본 논문은 조합논리회로를 사용하여 레지듀 수체계에 의한 고속 복소수 곱셈기의 구성에 대하여 검토하였다. 레지듀 덧셈에서 나타나는 부호 결정과 오버플로우 교정 문제의 다른 방법을 제시하였으며 고려된 곱셈기의 연산 추정시간은 약 53. 15ns이었다. This paper discussed the high speed complex multiplier based on the Residue Number System (RNS) using combinational logic circuits. In addition, the sigil determination and overflow correction problem in residue addition has been studied. The estimated multiplication time of considered processor were about 53.15 ns.
김덕현(Duck Hyun Kim),김동건(Dong Kun Kim),김형일(Hyung Il Kim),전수일(Soo Il Chun),조정구(Chung Koo Cho) 대한피부과학회 1984 대한피부과학회지 Vol.22 No.3
Two cases of malignant histiocytosis, in which skin involvement was a prominent finding at initial clinical presentation, are reported. 1nteresting histopathologic findings, including Langerhans granule in one case and numerous eosinophils in another, were observed. In one case remission was achieved with BACOP chemotherapy (Bleomycin, Adriamycin, Cyclophosphamide, Vincristine, and Prednisone). In the other case, the patient died nine months after the onset of the disease without any treatment.
화장품에 의한 접촉 피부염이 의심되는 환자에서의 첩포 시험에 관한 연구
김덕현(Duck Hyun Kim),김형일(Hyung Il Kim),박희용(Hee Young Park),이성낙(Sung Nack Lee) 대한피부과학회 1987 大韓皮膚科學會誌 Vol.25 No.2
Of the 166 cases of suspected cosmetic contact dermatitis, 92 showed positive reactions to one or more of the allergens of the commercial test kits or patients, own coametics by patch test. Tincture of benzoin, ammoniated mercury, cinnamic alcohol and benzyl salicylate were the most commonly identified agents. By product category, skin care produts dominated as the cause of the cosmetic conact dermatitis. However, it was suspected that the most common sensitizer may be present in the eye-make up preparations. The positive rate of foreign cosmetics was more than 2 fold higher than the domestic ones.
수은 흡입에 의한 전신성 접촉 피부염 ( Mercury Exanthem ) 2예
김덕현(Duck Hyun Kim),김형일(Hyung Il Kim) 대한피부과학회 1987 대한피부과학회지 Vol.25 No.2
We herein report two cases of systemic contact dermatitis probably due to inhalation of mercury. The first case is a 13 year-old boy who developed generalized erythema and dyspnea following the use of a coin-bleaching solution of unknown ingredient in his room. And the second case is a 10 year-old boy who developed generalized scarlatiniform eruptions on his trunk and flexural aspect of his extremities after hreaking a clinical thermometer. The typical clinical feature, the inverted triangular shaped erythema on flexural aspect of inner thigh, were appeared in both patients. On patch testing, they showed positive reactions to mercury and other mercury compounds.
김덕현(Duck Hyun Kim),황규천(Kyoo Cheon Whang),이정복(Jung Bock Lee) 대한피부과학회 1986 대한피부과학회지 Vol.24 No.3
The vermilion border of the lips has a modifed epithelium, which is much more likely to develop allergic contact sensitivity reactions than oral mucosa. Allergens in contact with both the oral mucosa and the lips oftens produce only cheilitis. Allergic contact cheilitis may result from topical medicaments, dentifrices, cosmetics, foods, plants or metals. We present six cases of allergic contact cheilitis confirmed by patch test. The toot4paste was incriminated in 2 cases, the lipstick in 3 cases and the bubble gum in one rase as producing chelitis respectively.
김덕현(Duck Hyun Kim),방동식(Dong Sik Bang),한신원(Shin Won Han),황규천(Kyoo Cheon Whang),이해을(Hae Eul Lee) 대한피부과학회 1986 대한피부과학회지 Vol.24 No.3
A 18-month-old girl was seen because of an yellowish brown papular eruptions on the face, earlobes and neck of one year duration. A skin biopsy specimen revealed circumscribed cellular infiltrates composed of predorninantly pleornorphic histiocytes. Electron microscopy of biopsy material disclosed numerous worm like particles and coated vescles in limited area of the cell cytoplasm, consistent with the findinga described in benign cephalic histiocytosis. After six months of her first visit, the individual papules became flattened.
김덕현(Duck Hyun Kim),박윤기(Yoon Kee Park),조정구(Chung Doo Cho),이민걸(Min Geol Lee),한신원(Shin Won Han),신극선(Keuk Shun Shin) 대한피부과학회 1984 대한피부과학회지 Vol.22 No.3
We report two cases of angiokeratoma circumcriptum. One of them was 20 year- old male, who had multiple dark erythematous 0.5 cm to 2 cm sized keratotic papules and nodules surrounding irregular shaped erythema scattered or grouped on the right lower leg. The other case was 36 year-old male, who had Q. 7 cm sized dark erythematous papules and 2 cm sized dark brown colored nodule with central ulceration on the medial part of the left upper thigh, The two patients had skin lesions at birth. Histopathologic finding disclosed markedly dilated vessels containing many red blood cells mainly in the papillary dermis, which in some, were surrounded by elongated rete ridge. Cavernous hemangioma like lesion was present in the lower dermis and subcutaneous fat in case 2.