골반내에 발생한 Proximal-type 유상피성 육종 1예

길준철,이상수,전병화,김성훈,손우석,목정은,박양순,강길현 대한부인종양 콜포스코피학회 2003 Journal of Gynecologic Oncology Vol.14 No.4

유상피성 육종은 매우 드문 악성 연조직 육종으로, 전형적인 경우들은 주로 젊은 남성의 수부, 전완부와 같은 신체의 원위부에 피하 혹은 심재성 피부 종괴로 발생하며, 조직학적 소견상 적은 비정형성을 나타내는 유상피성 세포와 방추형 세포의 증식에 의한 다발성 결절 형태의 배열을 보인다. 최근에 전형적인 유상피성 육종과 조직학적 유사성을 가지나 더 공격적인 형태인 proximal-type 유상피성 육종이 보고되었으며, proximal-type은 전형적인 유상피성 육종에 비하여 현저한 유상피성 세포의 발현과 매우 심한 비정형성을 나타내며, 세포가 매우 크고, 소포성 핵과 뚜렷한 핵소체를 보이며, 자주 rhabdoid 세포의 양상을 띈다. 임상적으로는 전형적인 형태에 비하여 호발 연령이 조금 늦고, 주로 체간부에, 특히 골반, 회음부, 생식기 등과 같은 심부에 발생하고, 더욱 공격적인 양상을 나타낸다. 저자들은 13세 소녀에서 원발부위를 알 수 없는, 골반내에 발생한 proximal-type 유상피성 육종 1예를 경험하여, 문헌 고찰과 함께 보고하는 바이다. Epithelioid sarcoma is a rare malignant soft-tissue sarcoma with an unknown histiogenesis, typically presenting as a subcutaneous or deep dermal mass lesion in the distal portions of the extremities of young adults. Recently, a more aggressive, so-called 'proximal-type' epithelioid sarcoma has been reported. In contrast to conventional epithelioid sarcoma, the proximal type is characterized by a predominantly large cell epithelioid cytomorphology, marked cytologic atypia, and frequent occurrence of rhabdoid features in most patients. Proximal-type epithelioid sarcoma has a predilection for appearing in the genitalia, especially the vulva, penis, pelvis and buttocks. Also this lesion appears to be somewhat more aggressive or at least metastasizes earlier than the conventional epithelioid sarcoma. We report a 13-year-old girl who presented with a buge mass filling the pelvic cavity which was painful, hard and fixed on palpation, and was radiologically diagnosed as a malignant germ cell tumors on the CT scan. The mass was surgically excised and pathologically proved to be an proximal-type epithelioid sarcoma of unknown origin.

소형 기기용 효율적인 바이트 코드 검증기술에 관한 연구

황철준,조증보,정민수 慶南大學校 附設 工業技術硏究所 2003 硏究論文集 Vol.21 No.2

USIM(Universal Subscriber Identity Module) 기술은 데이터의 관리와 보호를 하나의 소형 칩 내에 집약시킨 기술로 최근에 이 기술에 대한 관심도가 증가하고 있다. 자바카드 가상기계는 자바 언어로 작성된 프로그램이 USIM 칩 내부에서 실행 가능하도록 해준다. 하지만 자바카드 가상 기계는 자원 제약적인 디바이스의 특성으로 인하여 검증기술을 제공하지 않는다. 본 논문에서는 정적 체크 기반의 효율적인 바이트코드 검증기를 제안한다. 연구 결과 본 논문에서 제안하는 검증기는 일반적인 것에 비해 90% 이상의 사이즈가 감소되었다. As Universal Subscriber Identity Module (USIM) technology can handle, manager and protect data within a small sized chip, peopled are more interested in USIM technology lately. Java Card Virtual Machine (JCVM) enables programs written by Java programming language to be run in smart cards with USIM chips. However JCVM does not have a verifier as limits of hardware. In this paper, we propose a ByteCode verifier with novel algorithm based on Static Check policy. We experiment that the size of our verifier is reduced by 90% over generals.

황놀래기,Pseudolabrus japonicus (HOUTTUYN)의 生殖周期와 性轉換

安哲民,李榮敦,李定宰,李澤烈 濟州大學校海洋硏究所 1992 해양과환경연구소 연구논문집 Vol.16 No.-

1990년 12월부터 1991년 10월까지, 그리고 1992년 7월부터 11월까지 제주도 북방합덕연안을 중심으로 채집된 황놀래기, Pseudolabrus japonicus를 대상으로 그들의 生殖生態를 파악하기 위하여 體色變化와 生殖巢熟度指數, 그리고 生殖巢의 조직학적 방법에 의한 生殖週期, 性轉換 過程등을 조사한 결과는 다음과 같다. 1. 생식소 숙도지수(GSI)는 암수 다같이 8월에 접어들면서 상승하기 시작하며 10월에 최대 치를 나타내고, 12월에 접어들면서 하강하기 시작하여 1월부터 낮은 값을 나타내고 있다. GSI최대값은 암컷 2.32(±0.35), 수컷 0.38(±0.18)을 나타냈다. 2. 生殖週期는 成長期(8∼9월), 成熟期(9∼10월), 完熟 및 産卵期(10∼12월), 回復 및 休止期(12∼7월)등의 연속적인 주기를 나타냈다. 3. 體長 11.5∼16.0㎝되는 개체들에서 雌性에서 雄性으로 性轉換 단계의 生殖巢를 갖고 있다. 4. 본 種은 1차정소와 2차정소가 혼합되어 나타나는 複雄性의 雌性完熟魚에 속하는 것으로 나타났다. 5. 암컷에서 수컷으로 性轉換 함에 따라 적색에서 청색으로 體色變化가 나타나고 있다 Reproductive cycle and sex reversal of Pseudolabrus japonicu s were investigated histologically on the gonadal development, sex change of the gonad and studied by gonadosomatic index(GSI), color patterns. Sample were collected at the costal area of Ham duck in Cheju-do, from December, 1990 to November 1992. In male and female, GSI began to increase from August and reached it's maximum value in October, respectively. It began to decrease from December, the low temperature season, thereafter, maintained relatively low values until July of next year. The annual reproductive cycle of this species could be classified into four sucessive developmental stage : growing stage(August-September), mature stage(September-October), ripe and spent stage(October-December), degenerative and resting stage(December-July). The species is a diandric, protogynous hermaphrodite, and has two color patterns: red-yellow (A) and dark-green (B). A-fish were less than 14.5㎝ SL and consisted of females (92.7%), secondary male(80.2%), primary male(5.5%), female(5.5%) and fish with transitional gonad(8.8%). In P.japonicus, individuals with hermaphrodic gonad were observed in 11.5∼16.0㎝ SL. Sex reversal of this species could be occured from 11.5 to 16.0㎝ SL.

인듀서 내부의 캐비테이션 유동과 흡입성능에 관한 연구

申澈洙,金鍾喆,姜宇政,李先基 충주대 산업과학기술연구소 1995 産業科學論文集 Vol.3 No.-

In order to understand the influence of the inducer inlet angle on cavitation and suction performance, experiments were carried out for two kinds inducer, which have the same outlet angle distribution, length and number of inducer blades. The results showed that the change of inducer inlet angles influenced not only internal flow conditions but also cavity flow and suction performance. The improvement of suction performance by using inducer were also discussed.

하수 슬러지 건조 공정의 경제성 평가에 관한 연구

姜宇政,申澈洙,梁晶模 충주대 2004 産業科學論文集 Vol.12 No.-

To solve the water pollution prevention problems, sewage and wastewater disposal system as the basic facilities are required strongly. However, the production of sewage sludge, a by-product of sewage and wastewater disposal system, is tending to increase. Therefore, efficient disposal method of sewage and wastewater is needed. At present, there are many problems in current disposal methods such as open dumping, ocean disposal, and incineration. These cause secondary environmental problems. Recycling sewage sludge is an alternative method to solve these problems thoroughly and prevent environmental disruption and maximize economic usefulness. This study presents LCA(Life Cycle Assesment) application to analyze the environmental loads and economy of sewage sludge drying process. The obtained results are applied to prepare fundamental understanding and judgement in view of environmental and economical consideration on drying process of sewage sludge by local authorities. The results are as follows; The economic assessment showed that the expense of drying process of sewage sludge was 45,603 won per ton. Among the expense items, the fuel cost is around 35%(15,961 won per ton) and it is the main cause. It is regarded that reducing the fuel can obtain the reduction of the cost and carbon dioxide, major environmental pollution discharge.

축류팬의 소음저감 설계에 관한 연구

申澈洙,姜宇政,李東勳 충주대 산업과학기술연구소 1994 産業科學論文集 Vol.2 No.-

This paper is to describe the design of the noise reduction of the axial flow fans. The nature and magnitude of the noise-producing mechanisms and the noise reduction are discussed on the basis of the results and theories published up to now. Sources of noise in axial fans can be classify into rotational and non-rotational noise. Rotational noise which is caused by inflow distortion and turbulence consists principally of tones related to the blade passage frequency. While, non-rotation noise which is caused by an interaction of the blade with the tip clearance vortex is broad band in character. The main parameters investigated for noise reduction in axial fans are as follows ; tip clearance, number of blade, chord length, camber angle, solidty, blade thickness, twisting angle, serrations attached on the blade, rotating shroud attached on the tip blade tip, bellmouth, etc.

PSCD를 이용한 NOx 저감에 대한 C₂H₄ 가스의 첨가효과에 대한 연구

신철수,강우정 충주대 산업과학기술연구소 1998 産業科學論文集 Vol.6 No.-

The purpose of this study is to investigate the reduction rate of NOx according to sever al parameters(NOx concentration, the flow rate of gas, the additional amount of C2H4, input voltage, input frequency and so on) when NOx is reduced by using PSCD(Pulse Streamer Corona Discharge). PSCD is based on the plasma-chemical technology, which induces narrow voltage pulses to binary electrode structure.

지방행정구역 개편에 관한 고찰

河喆永,全得祚 동의대학교 법정연구소 2001 공공정책연구 Vol.17 No.-

祖稅爭訟에 있어서 總額主義와 爭點主義에 관한 考察

河喆永,金必宗 東義大學校 法政硏究所 1998 공공정책연구 Vol.14 No.-

豚內 副産物의 特性과 加工利用에 關한 硏究 : Ⅱ. 加熱處理가 物理的 性質과 嗜好에 미치는 영향

양철영,이상건,윤정의,허윤행,채수규,노완섭 서울保健大學 1989 論文集 Vol.9 No.1