만성 위염전 2 례

박찬규,이동욱,남성진,김추성,조성래,구본천,박영재,허규찬 啓明大學校 醫科大學 1997 계명의대학술지 Vol.16 No.3

위염전은 위의 비정상적인 회전으로 생기는데 급성증에서는 진단이 늦어질 경우 치명적일 수도 있으나, 만성증의 경우는 비특이적 위장관 중상을 나타내며, 치료되지 않을 경우 수년 동안 증상이 지속될 수도 있다. 최근 저자들은 소화불량, 식후 상복부 동통을 주소로 내원한 환자에서 만성위염전 2 례를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Gastric volvulus is an abnormal rotation of the stomach. Gastric volvulus may present as an emergency or as a chronic condition. Acute volvulus si potentially lethal if unrecognized, while a chronic volvulus may cause symptoms for years if not treated. Gastric volvulus may be more common than previously estimated. Approximately 700 cases have thus far been documented. In patients with vague upper abdominal pain, bloating, vomiting, early satiety and weight loss, chronic gastric volvulus are reported and the related literature reviewed. The clinical presentation, diagnosis, and treatment are treatment are discussed. Features of acute and chronic volvulus are compared.

Three-Dimensional Porous Collagen/Chitosan Complex Sponge for Tissue Engineering

Kim, Sung Eun,Cho, Yong Woo,Kang, Eun Jung,Kwon, Ick Chan,Lee, Eunhee Bae,Kim, Jung Hyun,Chung, Hesson,Jeong, Seo Young The Korean Fiber Society 2001 Fibers and polymers Vol.2 No.2

A three-dimensional, porous collagen/chitosan complex sponge was prepared to closely simulate basic extracellular matrix (ECM) constitutes, collagen and glycosaminoglycan. The complex sponge was prepared by a lyophilization method and had the regular network with highly porous structure, suitable for cell adhesion and growth. The pores were well interconnected, and their distribution was fairly homogeneous. The complex sponge was crosslinked using 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS) to increase its boilogical stability and enhance its mechanical properties. The crosslinking medium has a great effect on the inner structure of the sponge. The homogeneous, porous structure of the sponge was remarkably collapsed in an aqueous crosslinking medium. However, the morphology of the sponge remained almost intact in a water/ethanol mixture crosslinking milieu. Mechanical properties of the collagen/chitosan sponge were significantly enhanced by EDC-mediated crosslinking. The potential of the sponge as a scaffold for tissue engineering was investigated using a Chinese hamster ovary cell (CHO-K1) line.

폴리에스테르 섬유 감량시스템용 프로세서 타이트레이터 개발

조진호,이흥락,이종현,김명남,구성모,김무영,진경찬,유병희,강민수,김국진 경북대학교 센서기술연구소 1993 연차보고서 Vol.1993 No.-

폴리에스테르 섬유 감량시스템의 제어를 위해서는 처리조 내에서 감량되는 섬유가 목표 감량치에 도달했는지를 판단해 주는 장치가 필요하다. 본 연구에서는 가성소다용액의 초농도 및 섬유 감량 정도의 정확한 측정과 감량 종료시간의 산출 및 이에 따른 종료신호를 발생할 수 있는 폴리에스테르 섬유 감량기 전용의 자동적정장치를 개발하였다. To control caustic soda treatment system for the polyester fabric reduction, we need the device to determine that the fabric has been arrived target reduction value. In this study, we develope an automatic process titrator for the caustic soda treatment system. Major functions of the target titrating system are accurate measurements of the caustic soda concentration and then producing the end point signal for caustic soda treatment system.

술후 Morphine과 Butorphanol의 지속적 정주 효과 비교

조상선,안정찬,이상근,한인숙,장사충 日新基督病院 1997 日新基督病院論文集 Vol.12 No.-

TDNN을 이용한 음악 장르 분류

조찬윤,김상균 인제대학교 2001 仁濟論叢 Vol.16 No.1

This paper proposes a music genre classifier using Time Delay Neural Network(TDNN). The classifier will be used as a basic engine for an audio data retrieval system and considers eight kinds of genres such as Blues, Country, Hard Core, Hard Rock, Jazz, R&B(Soul), Techno and Trash Metal. Training pattern for the TDNN classifier is Fourier transformed frequency feature vector extracted from one unit of audio data. The unit is data between bars and the starting point of the bar is calculated using a rule based system. We experimented the classifier on eighty training data from ten musics for each genres and forty test data from five musics for each genres, and obtained correct classification rates of 92.5% and 60%, respectively. This result suggests that the proposed classifier has the possibility of a practical use for a content based audio retrieval system on the Web.

강남성모병원에서의 정신과 자문경험

조용찬,이성필,유태열 大韓神經精神醫學會 1984 신경정신의학 Vol.23 No.2

In an attempt to evaluate the current trends of psychiatric consultation, authors investigated 142 cases of in patients who were referred for psychiatric consultation at Kangnam St. Mary's Hospital from April 1, to November 30, 1983. The results were as follows: 1. The majority of consultations was requested from the department of internal medicine(67.61%). 2. The overall consultation rate was 1.71% of total inpatients for the time period. The department of internal medicine ranked highest in the consultation rate(5.12%). 3. Among the immediate reasons for psychiatric consultation, request for diagnostic evaluation and treatment was 65.63% and request for control of specific symptoms or behavior was 34.37%. 4. Among the somatic symptoms present on consultation, gastrointestinal symptoms and head & CNS symptoms were the most frequent ones. 5. Affective disorders including depression(25.39%), and organic mental disorder(16.58%) were the most frequent diagnostic impressions given by consultant. 6. Regarding the concordance rate with the recommendations given by consultant, absolute concordance with laboratory tests(including psychological tests), drug treatment and psychotherapeutic approach was observed among 62.39% of total consultees. However, non-concordance was observed among 11.93%. 7. For the discharge diagnosis, psychiatric diagnosis was given to 33.03% among all the consultees. 8. The inter-departmental transfer rate following psychiatric consultation was 21.20%.

산발성 장형 위선암 환자의 Microsatellite Instability와 병리학적 양상

조창희,홍유찬,안지현,최경현,이상호,신영명,윤기영,정민정,장희경 고신대학교의과대학 2007 고신대학교 의과대학 학술지 Vol.22 No.2

Background : Through many researches, microsatellite is expected to be a good diagnositic and prognostic factor in colorectal cancer, endometrial cancer, gastric cancer, and the others. The prevalence of microsatellite instability (MSI) in gastric carcinoma has reported variously, 13~44%. Purpose : We aimed to determine the prevalence of MSI-high and the relationship between MSI and pathological characteristics of sporadic intestinal type adenocarcinoma of stomach. Material and Methods : We analyzed 106 sporadic intestinal type adenocarcinoma specimens excised from patients who were over thirty-five years old to determine the statue of microsatellite by DNA sequencing. The tissues were formalin-fixed and paraffin embedded. DNA were extracted and amplified by polymerase chain reaction (PCR). MSI was determined using five markers recommended by National Cancer Institute (NCI). Specimens were also studied with five patholical factors-differenciation of tumor cells, depth of invasion, lymph node metastasis, vessel invasion, and perineural invasion- to determine pathological state. Result : The microsatellite statue was determined as MSI-High in 5 cases (4.7%), no MSI-low, and MSS (microsatellite stable) in 101 cases (95.3%). Within the frequency, there was no large gap in the distinction of gender in MSI cases, but in MSS cases, there was three-times more cases in male. MSI cases had moderate-to-poor differenciation and trend to invade toward serosa. All MSI cases showed no perineural invasion. But we could not find any statistical significance between MSI and pathological characteristics of sporadic intestinal type adenocarcinoma. Conclusion : Results suggest that MSI can not make any certain pathological significance in sporadic intestinal type adenocarcinoma. Even though less than 5% of sporadic intestinal type adenocarcinoma patients showed MSI, it can be used as a influential prediagnostic factor of gastric cancer. Further study with large scale of cases will be followed to verify these results.

全南住民에 있어서 惡性腫瘍의 統計的 觀察 (第2報)

曺圭赫,柳柱容,尹康爀,鄭相愚,梁東旭,李珉撤,崔燦 全南大醫大 1983 전남의대학술지 Vol.20 No.4

요로감염이 진단되었거나 의심되는 영아에서 방광요관역류를 예측할 수 있는 임상적, 실험실적 지표들에 대한 연구

조승만,홍성완,홍찬의,정철주,노영일 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.3

Background: Vesicoureteral reflux (VUR) in infants may be the main cause of recurrent urinary tract infection (UTI) and renal scarring. So the early diagnosis of VUR is helpful to prevent recurrence of UTI and to alleviate the grade of VUR. This study is to examine the predictability of clinical and laboratory variables for VUR in infants with confirmed or suspected UTI. Material and Methods: Data of infants younger than 12 months who underwent voiding cystourethrography (VCUG) between 2003 and 2006 were evaluated retrospectively. Among the infants with suspected UTI, infants with VUR (Group 1) vs no VUR (Group 2) were compared. And among the Infants with confirmed UTI, infants with VUR (Group 3) vs no VUR (Group 4) were compared, Variables selected in this study were age at onset, gender, fever, laboratory data and imaging (ultrasonography). Results: Among the variables, the mean of C-reactive protein (CRP) in Group 1 and Group 2 were 5.24±6.82 and 2.46±3.75, respectively, showing that Group 1 had a higher value than Group 2 (P=0.0104). And the number of patients with fever □38.5℃ in Group 1 was higher than in Group 2 (U=0.0004). The mean of C-reactive protein (CRP) in Group 3 and Group 4 were 8.95±6.1 and 5.39±6.0, respectively, showing that Group 3 had a higher value than Group 4 (P=0.0409). Conclusion: Fever≥38.5℃ and CRP≥0.6 ㎎/dL were closely associated with VUR in infants with suspected UTI. And CRP□3.4㎎/dL was closely associated with VUR in infants with confirmed UTI. However, further evaluations and studies for these variables will be needed to use them as predictors for VUR.

Drill가공에 있어서 ADI재료의 절삭성에 관한 연구

조상순,조규재,전언찬,장성규 東亞大學校 大學院 1995 大學院論文集 Vol.20 No.-

The drilling tests were performed on austempered ductile cast irons(ADI) with 2∼3% silicon to clarify the factors influencing the driling characteristics of ADI material. The machinability of each material was evaluated using high speed steel drills of 4mm diameter. The ductile cast iron materials were austenized at 900℃ for 1 hour and then held at 375℃ for 2 hours. Austempered ductile cast iron containsa great deal of retained austenite which contributes to an improvement of impact strength. The machinability of ADI depends on Si components and machinability of workpice has been proved better 3% Si material with high Si components than 2% and 2.5% Si material. It was found that the tool life was a great affected by the feed rate and as feed rate increses, tool life gradually decreased.