초음파로 진단된 자궁동정맥 기형 2예

최홍준,이해혁,김태희,김정식,남계현,이권해,박성진 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Arteriovenous fistula of uterus is a very rare cause of massive uterine bleeding. However, it is important to make a rapid and precise diagnosis when it does occur, because life-threatening massive vaginal bleeding may occasionally be a symptom of this disease. Uterine curettage or surgical trauma can cause vascular abnormalities, including pseudoaneurysms, acquired ateriovenous malformations, ateriovenous fistulas, and rupture of vessels. The diagnosis is made by angiography, and gray scale ultrasonography, color and duplex doppler ultrasonography, computed tomography, magnetic resonance imaging is helpful. Ultrasonography is the most commonly performed initial imaging examination for evaluation of abnormal uterine bleeding. Color and duplex Doppler US is an appropriate modality for the detection and diagnosis of uterine ateriovenous malformations and for follow-up after embolization. Transcatheter embolization has replaced hysterectomy as the treatment of choice in women wish to retain thier fertility. A case of arteriovenous malformation of the uterus which was diagnosed by ultrasonography. So reported this case with a brief review of the literature.

접촉연소검지방식을 이용한 후막형 메탄가스센서의 제조 및 그 특성

박준식,이재석,홍성제,박효덕,신상모 경북대학교 센서기술연구소 1995 센서技術學術大會論文集 Vol.6 No.1

본 연구에서는 스크린 프린팅 기술을 이용한 병렬저항열원을 갖는 후막형 가연성 가스센서를 제조하고, 메탄가스에 대한 감도특성을 조사하였다 알루미나 기판의 양면 위에 제조된 병렬형 백금 후막발열체는 후막형 백금 저항체로 사용된 백금페이스트 온도 감지 특성과 표면 특성을 조사하여 paste A로 선정하였다. 제조된 백금 후막 발열체는 평균저항값이 1.8Ω이고, TCR값은 3685ppm/℃이었다. 제조된 백금 발열체상에 Pt과 Pd이 첨가된 촉매 페이스트를 제조하고 가지부는 Pt과 Pd가 첨가된 촉매를 스크린 프린팅하여 후막을 형성하고 열처리하여 제조하였다. 제조된 후막형 센서는 메탄가스에 대해 4.3mV/1009ppm의 감도를 보였으며, 소비전력은 2.12W이었다. We fabricated the sensors with parallel Pt heaters using screen printing process and investigated sensitivities to hydrocarbon gases. The paste A was selected as Pt paste for heater by investigated the properties of TCRs and thick film microstructures. The average resistance of parallel Pt heaters was 1.8Ω, and the best TCR obtained was 3685ppm/℃. On the top of the Pt heaters, a sensing layer added with Pt and Pd as catalyst paste was screen printed and heat treated. The sensitivity of fabricated the sensor was 4.3mV/1000ppm to methane. The power consumption of the sensors was 2.12watts

비구조화 환경의 입력영상에 대한 영역기반의 추적 방법

오홍균,손용준,장동식 한국경영과학회 2001 한국경영과학회 학술대회논문집 Vol.- No.1(3)

The main problems of computational complexity in object tracking were object definition, identification and segmentation in non-structured environments with erratic movements and object collisions. Therefore, for efficiency, we considered the object information as a region that corresponds to objects without discriminating among objects in the same frame. This paper describes the algorithm that, automatically and efficiently, recognizes and keeps tracks of interest-regions selected by a user in video or camera image sequences. The block-based feature matching method was used for region tracking. This matching process considers only dominant feature points such as corners , edges, bright and dark spots without requiring a pre-defined model of object s . Experimental results showed that matching process captured correct region successfully even when the objects undergo scaling and 3-dimensional movements in successive image sequences.

중증 외상환자에서 염기 결핍수치의 유용성

문준동,김수진,문철규,최성혁,전정민,이성우,홍윤식 대한응급의학회 2001 대한응급의학회지 Vol.12 No.3

Background: This study's objective was to determine the prognostic value of the base deficit measured in the emergency department(ED) and to determine whether base deficit can provide information not provided by advanced injury scoring system. Methods: This study was a retrospective analysis of data collected for two years. Thirty-two severe trauma patients who were admitted to the Emergency Department of Korea University Hospital were included in this study. The patients were divided into two groups: the normal base deficit group(-3 mmol/L to 3 mmol/L) and the elevated base deficit group(>3 mmol/L). The base-deficit value, age, sex, head injury, organ failure rate, and survival were considered, and the also Revised Trauma Score(RTS), Acute Physiology And Chronic Health Evaluation(APACHE II), and Injury Severity Score(ISS) were measured. Result: The elevated base-deficit group showed a lower survival rate and a higher organ failure rate compared to the normal base deficit group. Logistic Regression showed a strong association between base deficit and mortality rate. Among the previous injury scoring Systems(RTS, APACHE II, ISS), base deficit had the strongest correlation with RTS. By using base deficit value and the RTS together, we obtained a higher positive predictive value than that obtained by using base deficit or RTS alone. Conclusion: The admission value of the base deficit in the ED is a useful tool in predicting the outcome in severe trauma patients, and it can be an adjunct to previous injury scoring systems. As an advanced injury scoring System is developed in the future, the base deficit may have some significant role.

脂質을 추출한 녹두 및 쌀보리 澱粉의 Amylogram 특성과 X-ray Diffraction 특성에 관한 연구

최홍식,엄수현,전영수 부산대학교 가정대학 1989 家政大學硏究報告 Vol.15 No.-

Starch lipids (lipids bound to starch) and non-starch lipids from two different types of starch of naked barley(Hordeum vulgave, L.) and mungbean(Phaseolus radiatus, L.) were extracted by following techniques. Non-starch lipids were extracted from starch by petroleum ether(PE) and then starch lipids were reextracted from PE extracted starch by the solvent systems of water saturated butanol(WSB) at 25℃ and at 95℃, respectively. And also physical properties of the related lipid extrated starch were compared with those of raw starch(starch-lipid complex) through X-ray diffraction and amylogram studies. The contents of neutral lipid(NL), glycolipid(GL) and phospholipid in starch lipid of naked barley were 34.9~54.6%, 30.0~45.5% and 15.4~19.6%, on the other hand, those of mungbean were 84.3~85.7%, 10.5~11.0% and 15.4~19.6%, respectively. The starches showed charactistic amylograms and X-ray diffractograms. Defattening of starch lipid was found to slightly change the physical properties of raw starches. Especially, gelatinization temperature of starch was a marked lowering by defattening process in naked barley starch. And also, a significant change was observed at viscosity in Brabendar amylograms when starch was defatted by various extraction procedures. On the other hand, X-ray differaction pattern of original starch was changed slightly by defattening process. This change was found in the extraction procedure with water-satruated butanol.

초등학교용 웹 기반 교수-학습 자료 개발 전략

김홍래,정인기,신준식,이대형 춘천교육대학교 과학교육연구소 2001 과학교육연구 Vol.25 No.-

우측 대장에 발생한 연소성 용종 1예

이준식,박성한,홍현진,안광순,김지연,배용목,이은영,박선자 고신대학교의과대학 2007 고신대학교 의과대학 학술지 Vol.22 No.2

Juvenile polyp, also known as a retention polyp because they contain mucin cysts, is a relatively common hamartomatous lesion in chlidhood. It occurs in 1-2% of children and young adults; however it is uncommon in adulthood. Juvenile polyp is rare in the first year of life and is thus presumed to be acquired and not congenital. It is pedunculated, 2-3 cm in size, red-tan in colour, smooth and always shows fluid filled cystic spaces on cut surface. Histologically, Juvenile polyps are hamartomatous with distended, mucus-filled glands, often with cystic dilatation and edematous lamina propria containing abundant vasculature. The most common manifestation is rectal bleeding produced by auto-amputation of the polyp. Juvenile polyp has been considered not to be at increased risk of developing carcinoma. However, atypical epithelium is observed in some lesions, especially in larger polyps, which may give rise to adenoma and subsequent malignant transformation. Therefore the diagnosis of solitary juvenile polyp should not be made only with colonoscopy and biopsy, but should be totally resected endoscopically for pathologic evaluation. About 90% of the lesions are solitary and localized within 20cm from anal verge. In Korea, there are some reports of juvenile polyps located in the rectosigmoid colon. We report one case of juvenile polyp in adolescent that presented as a hematochezia & abdominal pain, which is located at right colon.

재발성 복부 통증을 호소한 환자에서 복벽에 발생한 자궁내막증 1예

홍현진,박성한,이준식,배용목,김지연,안광순,박선자 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.1

Endometriosis is the abnormal growth of endometrial tissue outside the uterine cavity. Endometriosis in the abdominal scar following cesarean section is very rare condition among the extrapelvic endometriosis. The frequency of abdominal wall endometriosis secondary to cesarean section is from 0.03% to 0.8% in some reports. It is difficult to diagnosed in spite of the typical symptoms. The typical symptom is aching swelling in the area of the surgical scar, which is influenced by the phases of menstruation. The definitive diagnosis is established by pathologic analysis. Surgical excision remains the treatment of choice. The majority of patients presented from 1 to 2 years after the precipitating operation. We experienced an unusual case of abdominal wall endometriosis presented over 10 years after cesarean section, who was admitted to our hospital complaining of recurrent left lower abdominal pain. So, we report this case with a brief review of the concerned literatures.

초경량성 재료인 Mg-10Li-3A1 합금의 TMP 처리를 통한 기계적 특성 향상 방안

김광배,홍준표,김영인,홍원식,배현근 한국 항공대학교 항공산업기술연구소 1998 航空宇宙産業技術硏究所 硏究誌 Vol.8 No.-

초경량 고강도 Mg-10Li-3Al 합금이 용탕단조법에 의해 제조되었다. 주도된 상태의 미세구조는 β상 기지에 균일하게 분포된 AlLi 및 MgAl₂Li를 포함하는 HCP α상과 BCC β상으로 이루어졌다. α상의 초기 결정립 크기는 100㎛였다. Mg-Li 합금에 Al을 첨가하는 것은 용체화 처리 및 시효를 통한 석출 경화에 기인하여 합금의 강도 및 경도를 향상시켰다. 결정립 미세화를 위한 TMP처리가 냉간 가공과 연이은 300℃, 30분 동안의 어닐링에 의해 수행되었다. 결과적으로 나타나는 미세구조는 재결정화되지 않은 α상과 재결정화된 β상으로 이루어졌다. 냉간 가공량이 증가함에 따라 합금의 결정립 크기가 감소하였고, 최종 결정립 크기는 3.5㎛였다. 가공 열처리된 Mg-10Li-3Al합금은 용탕단조된 합금보다 높은 강도와 연신율을 보였다. Superlight and high strength Mg-10Li03Al alloys were fabricated by squeeze casting. The as-casted microstructure was consisted of a mixture of a mixture of HCP α and BCC β phases including AlLi and MgAl₂Li precipitates, which were uniformly distributed in the βmatrix. Initial grain size of α phases was 100㎛. The addition of Al in Mg-Li alloy had improved the strength and hardness due to the precipitation hardening through solution heat treatment and aging. Thermomechanical Processing(TMP) for grain refinement was carried by cold working and immediate annealing for nucleation at 300℃ for 30 minutes. Subsequent microstructure was consisted of unrecrystallized α and recrystallized β phases. The more the amount of cold working increased, the more the grain size of the alloy was decresed. Final grain size was 3.5㎛. Thermomechanically processed Mg-10Li-3Al alloy had higher strength and elongation than as-casted alloy.

젖소 足皮膚炎에 대한 오존수의 治療 效果

이수진,조성환,전무형,김덕환,박창식,한홍율,김명철 충남대학교 형질전환복제돼지연구센터 2007 논문집 Vol. No.10

This study was carried out to determine therapeutic the effect of ozonated water therapy on bovine pododermatitis. In addition, bactericidal effect of ozonated water on etiological agent of bovine pododermatitis was examined. The pathohistological examination for the pododermatitis, according to application with ozonated water and ozone ointment was investigated. Thirty healthy cattle were divided two groups(each of 15) : control group (povidone group), treatment group (ozone solution group). Various parameters were evaluated in terms of the lameness score, swelling score, lesion score, WBC count, neutrophil count, pathohistological finding, and antimicrobial action. The decrease of lameness and lesion score were shown in hoof lesions on 14 days after application of ozonated water. Significant decrease of swelling was shown in hoof lesions on 14 days 1 Corresponding author after application of ozonated water(p < 0.01). In hematological findings, WBC count revealed values within normal range. The number of neutrophils was slightly higher than that of normal, however, this was improved on 14 days after application of ozonated water. In pathohistological findings, recovery was rapid macroscopically and microscopically in the treatment with ozonated water on the hoof lesions and ozonated water was effective. In antimicobial action, bactericidal effect was observed in treatment with ozonated water on the hoof lesions and ozonated water was effective.