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Weber - Cockayne형 수포성 표피 박리증으로 사료되는
천영일(Young Il Chun),장인성(In Seoung Jang),박상수(Sang Soo Park),최병문(Byoung Moon Choi),안규중(Kyu Joong Ahn),이유신(Yoo Shin Lee) 대한피부과학회 1985 대한피부과학회지 Vol.23 No.4
We report herein a case of epidermolysis bullosa (Weber-Cockaynetype) in a 22-year-old male soldier. He had tense egg sized bulla on the both feet for about 10 years. The lesions were exacerbated during hot weather but were mild. After entering military service, lesions became severe by mecanical trauma such as prolonged walking or marching. Histopathological findings showed subepidermal bulla and a few inflammatory infiltration in the dermis.
천영일(Young Il Chun),김제곤(Je Ghon Kim),안규중(Kyu Joong Ahn),전경호(Kyung Ho Chun),이유신(Yoo Shin Lee) 대한피부과학회 1985 대한피부과학회지 Vol.23 No.4
Cutaneous horn is a clinical term for a circumscribed concial hyperkeratotic mass amounts to at least half of its largest diameter. The number of lesion may be single or multiple. We report herein a cases of penile cutaneous horn in a 22-year-old male. He had dark brownish colored conical shaped protruded mass on the penile shaft for about 2 months. We performed excisional biopsy and curettage. Histopathologic findings showed verruca vulgaris.
천영일(Young Il Chun),김신규(Shin Kyoo Kim),안규중(Kyu Joong Ahn),오영진(Young Jin Oh),이유신(Yoo Shin Lee) 대한피부과학회 1985 대한피부과학회지 Vol.23 No.3
Juvenile xanthogranuloma is characterized by one, or oftener many, yellow, re3dish yellow, or, brown 4-to-20 mm papules or nodules on the face, scalp, trunk, and mostly, extensor surfaces. It may involve internal organ besides the skin such as eye, gastrointestinal and genitourinary tracts. anthogranuloma in adult is usually solitary and dose not involve organs other than skin, and generally dose ncit resolve without treatment. Histopathologically, characteristic Touton giant cells usually appear numerously. We report a case of juvenile xanthogranulorna which occured on scalp of 49 year-old male showing typical clinical and histopathological findings.
스포츠센터 마케팅 활성화를 위한 지리정보시스템(GIS)의 활용방안
천영일(Young Il Chun),신윤호(Youn Ho Shin) 한국사회체육학회 2002 한국사회체육학회지 Vol.18 No.1
This study aims to present the effectiveness of using Geographic Information System(GIS) in the marketing for sports centers and find out the utilization methods by analyzing the requirements needed for sports-related marketing on GIS and comprehend the problems on spatial data. Through the precedent researches on the location of sports facilities and the analysis of service zones, and case studies of marketing application utilizing GIS, this study implemented visualization of distribution of sports facilities, service zones and their competition states. Also, this study proved the fact that sports facilities can be properly distributed, in order to induce active utilization of GIS to sports marketing strategies. As a result of this study, following utilization methods of GIS were suggested. First, mapping the current location of sports center customers through collecting customer data and coordinate transformation of address; Second, identifying the boundary of primary, secondary and tatiery service zones by the application of spatial mutual working model; Third, grasping approach to the sports centers through range; Fourth, grasping the location having potential customers using population geographic data; Fifth, specifying goal market of sports center using data of each stage. However, in order to reflect requirements for spatial decision making of a company, it is required to set up and distribute socioeconomic data considering data aspects required for GIS application in business field. For the purpose, further researches should be made as well.
Finn Chamber Occlusion 과 Histometry 를 사용한 수종 스테로이드제의 표피 위축에 대한 관찰
천영일(Young Il Chun),양준모(Joon Mo Yang),서명수(Myoung Soo Suh),은희철(Hee Chul Eun),이유신(Yoo Shin Lee) 대한피부과학회 1986 大韓皮膚科學會誌 Vol.24 No.5
The aim of this stud y was to compare the epidermal thinning properties of four corticosteroid ointments applied under occlusion, using histology and histometry. The results were surnmerized as follows: 1.The stratum corneurn was dramatically thinned, appearing as a wispy layer of horny cells as apposed to the norrnal basket-weave configuration. this effect was prominent at sites treated with clobestasol propionate, fluocinonide, and fluocinolone acetonide. 2. With the histometry, visible epidermal thickness wa.s markedly reduced. This effect w is prominent in the following ascending order: fluocinolone acetonide, fluocienonide, clobestasol-17-propionate. Hydrocortisone was the least atrophogenic. 3. Clohestasol-17-propionate and fluocinonide caused significant flattening of der- mo-epidermal junction, Fluocinolone acetonide and hydrocortisone caused less pronounced cbanges. 4. Marked capillary dilation af papilly dermis is caused by clobestasol-17-propionate, fluocinonide and fluocinolone acetonide.
천영일(Young Il Chun),윤재일(Jai Il Youn),이유신(Yoo Shin Lee) 대한피부과학회 1986 大韓皮膚科學會誌 Vol.24 No.1
This study was aimed to investigate the clinical manifestation of nail changes in psoriasis and was based on analysie of 205 p oriatics visited the department of dermatology, Seoul National University Hospital from November, 1984 to June, 1985. The results were summerized as follows: Nail changes were noted in 78(38. 0%) out of 205 patients in the finger nails. Toe nails were involved in 26(12 7%) cut of 205 patients. 2 Nail changes in male were noted in 49 (46, 7%) out of 105 patients and in female, 29(29%) out of 100 patients. 3. The peak incidence of nail changes according, to age group was over 40 years (45. 1%.) and the lowest incidence, under 9 years(26. 7%). 4, Pitting(57. 7%) was the commonest change ii the finger nails and subungal keratosis(50. 0%) and discoloration(46 2%) in the toe nails. 5 Incidence of nail changes according to psoriatic type was 23. 7% in guttate type, 42. 6% in nummular type, 53 3% in annular type. 6 The patients with the more severe degrees of psoriasis had a higher incidence of nail involvement. Mean duration of psoriatics with nail change and without nail change was 6. 3 years and 6. 5 years, respectively, 8 Among 65 patients with psoriatic nails, onychomycosis was noted in 9 patients(13. 8%).
UWB 초고속 무선통신 시스템을 위한 FFT 프로세서 설계에 관한 연구
이상일,천영일,Lee, Sang-Il,Chun, Young-Il 한국정보통신학회 2008 한국정보통신학회논문지 Vol.12 No.12
UWB 초고속 무선통신 시스템을 위한 MB-OFDM용 128-포인트 FFT 프로세서를 설계하였다. 128-포인트 FFT 프로세서는 Radix-2 FFT 알고리듬과 R2SDF 파이프라인 구조에 기초하고 있으며, VHDL을 이용하여 구현되었다. 그 결과는 Modelsim을 이용하여 검증되었으며, Xilinx Vertex-II FPGA를 이용하여 합성된 결과 18.7MHz의 동작주파수를 얻을 수 있었다. 제안된 128-포인트 FFT 프로세서는 병렬처리 되는 FFT 프로세서의 한 블록으로 이용될 수 있으며, 이를 이용하여 고속의 병렬처리 FFT 모듈이 구현될 수 있게 된다. 따라서 본 논문은 4개의 128-포인트 FFT 프로세서를 병렬로 연결하여 4배의 동작주파수를 얻을 수 있었으며, 결과적으로 MB-OFDM에서 요구되는 동작주파수 이상의 성능을 얻게 되었다. We design and synthesize a 128-point FFT processor for multi-band OFDM, which can be applied to a UWB transceiver. The structure of a 128-point FFT processor is based on a Radix-2 FFT algorithm and a R2SDF pipeline architecture. The algorithm is efficiently modeled in VHDL and the result is simulated using Modelsim. Finally, they are synthesized on Xilinx Vertex-II FPGA, and an operational frequency of 18.7MHz has been obtained. It is expected that the proposed 128-point FFT processor can be applied to an entire FFT block as one of parallel processed FFTs. In order to obtain the enhanced maximum frequency of operation, we design the FFT module consisting of four 128-point FFT processors for parallel process. As a result, we achieve the performance requirement of computing the FFT module in multi-band OFDM symbol timing in 90nm ASIC process.
장인성(In Seong Jang),천영일(Young Il Chun),김광중(Kwang Joong Kim),이병호(Byung Ho Lee),현종명(Jong Myung Hyun) 대한피부과학회 1984 대한피부과학회지 Vol.22 No.2
We present a case of metastatic mailgnant melanoma developed in the 40 year- old male patient. Six month prior to visit to our department of dermatology, the patient found an egg sized mass covered with normal skin on his right inguinal area, which showed typical findings of the metastatic malignant melanoma histopathologically. The primary malignant melanoma on the right shin was removed by wide surgical excision at 18 months prior to visit to our department of dermatology.