결절성 및 괴상성 간세포암에서 역동적 전산화단층촬영 소견에 따른 경동맥화학색전술결과의 예측

이성문,김홍,지성우,우성구,이정형,서수지,손철호 啓明大學校 醫科大學 1997 계명의대학술지 Vol.16 No.2

Purpose: To evaluate retrospectively whether it is possible to predict the transarterial chemoembolization(TACE) result with the pre-TACE dynamic CT findings. Materials and Methods: The dynamic CT findings of 33 patients with 35 nodular and 8 massive hepatocellular carcinoma(HCCs) who was taken follow up CT after TACE, were reviewed retrospectively. After excluding the diffuse or infiltrative HCCs, the mass was classified into two groups of nodular and massive types. The size, location, degree of enhancement, pseudocapsule, portal vein(PV) thrombosis and arterioportal(AP) shunt were evaluated on the dynamic CT scans. The vascularity, multiple or parasitic blood supply, AP shunt and the possibility of superselection were considered on the angiography. After TACE, the pattern of lipiodol uptake and residual enhancing nodules were evaluated on the follow-up CT scans. Results: The good TACE results could be obtained in 18 of 35 nodular HCCs with dynamic CT findings of small size(mean=2.94cm), peripheral location, hyper-or iso-enhancement, and absence fo PV thrombosis, with angiographic finding of possible superselection, but the pseudocapsule did not give important effect on the result. Most of the massive HCCs had poor TACE results. Conclusion: The prediction of the TACE results of nodular and massive HCCs was possible with dynamic CT findings. If the good prognostic factors were not observed on the pre-TACE dynamic CT, the multiple TACE and/or combination therapy with percutaneous ethanol injection(PEI), surgical resection or others should be considered for the effective control of the HCCs.

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.

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.

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

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.

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.

太谿穴의 臨床 活用에 대한 文獻考察

구성태,송문영,강정묵,김용명,박보라,이은석,홍정아,김경식,손인철 한국전통의학연구소 2003 한국전통의학지 Vol.13 No.1

Literally, the mean of Tae-gye is highest brook. And on the basis of the acupuncture theory, Tae-gye point is the Soo earth point and source point of the Kidney Channel as well. In addition, Tae-gye point is one of the Yang-Returning Nine points. We were trying to study bibliographically on the Tae-gye point because Tae-gye point can be used very broadly across the symptoms in the theoretical aspect described above. As a results, we found out that according to the classical books of acupuncture, Tae-gye point is entering point of the Meridian Water as a source point and can be used at both Kidney-Sufficient Syndrom and Kidney-Deficient Syndrom. And Tae-gye can be applied to the disease of kidney or bladder that is urogenital symtoms, Also, Tae-gye is an useful option of tooth-ache, asthma, indigestion, constipation, edema etc whose cause is related with decrease of Kidney ki.

Shake-table responses of a low-rise RC building model having irregularities at first story

Lee, Han Seon,Jung, Dong Wook,Lee, Kyung Bo,Kim, Hee Cheul,Lee, Kihak Techno-Press 2011 Structural Engineering and Mechanics, An Int'l Jou Vol.40 No.4

This paper presents the seismic responses of a 1:5-scale five-story reinforced concrete building model, which represents a residential apartment building that has a high irregularity of weak story, soft story, and torsion simultaneously at the ground story. The model was subjected to a series of uni- and bi-directional earthquake simulation tests. Analysis of the test results leads to the following conclusions: (1) The model survived the table excitations simulating the design earthquake with the PGA of 0.187 g without any significant damages, though it was not designed against earthquakes; (2) The fundamental mode was the torsion mode. The second and third orthogonal translational modes acted independently while the torsion mode showed a strong correlation with the predominant translational mode; (3) After a significant excursion into inelastic behavior, this correlation disappeared and the maximum torsion and torsion deformation remained almost constant regardless of the intensity of the two orthogonal excitations; And, (4) the lateral resistance and stiffness of the critical columns and wall increased or decreased significantly with the large variation of acting axial forces caused by the high bi-directional overturning moments and rocking phenomena under the bi-directional excitations.

영아기 심실중격결손 봉합술의 임상적 고찰

정태은,이장훈,이동협,이정철,한승세,김세연,지대림 영남대학교 의과대학 2002 Yeungnam University Journal of Medicine Vol.19 No.2

Background: Simple ventricular septal defect(VSD) is the most common congenital heart disease. Although closure of VSD is currently associated with a relatively low risk, experience with younger and smaller infants has been variably less satisfactory. We assessed the results of surgical closure of VSD in infant. Materials and Methods: Between 1996 and 2000, 45 non-restrictive VSD patients underwent patch repair and retrospective analysis was done. Patients were divided into two groups based on weight: group I infants weighed 5kg or less(n=16), and group II infants weighed more than 5kg(n=29). Both groups had similar variation in sex, VSD location, aortic cross clamp time and total bypass time. But combined diseases (ASD, PDA, MR) were more in group I. We closed VSD with patch and used simple continuous suture method in all patients. Results: There were no operative mortality, no reoperation for hemodynamically significant residual shunt and no surgically induced complete heart block. As a complication, pneumonia(group I: 2 cases, group II: 2 cases), transient seizure(group II: 2), wound infection(group I:, group II:1), urinary tract infection(group I: 1) and chylopericardium(group I: 1) developed, and there was no significant difference between two groups(p>0.05). Conclusion: Early primary closure with simple continuous suture method was applicable in all patients with non-restrictive VSD without any serious complications.

Anti-Cancer Effect of the Combination of Thiacremonone and Docetaxel by Inactivation of NF-κB in Human Cancer Cells

( Jung Ok Ban ),( Jin Suk Cho ),( In Guk Hwang ),( Jin Woo Nah ),( Wun Jae Kim ),( Ung Soo Lee ),( Dong Cheul Moon ),( Heon Sang Jeong ),( Hee Soon Lee ),( Bang Yeon Hwang ),( Jae Kyung Jung ),( Sang 한국응용약물학회 2009 Biomolecules & Therapeutics(구 응용약물학회지) Vol.17 No.4