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신준호,배원길 대한소화기내시경학회 1998 Clinical Endoscopy Vol.18 No.6
Background/Aims: Since the laparoscopic cholecystectomy has been introduced, minimally invasive techniques have been applied to the management of various intraabdominal lesions. Laparoscopic resection of benign gastric tumor has several advantages compared to open surgery; such as reduced postoperative discomfort, early hospital discharge and less complications. Methods: We performed laparoscopic gastric resection for 6 benign gastric leiomyomas and 3 heterotropic gastric pancreases diagnosed by gastric endoscopy and did endoscopic ultrasonography routinely to find out the exact location of mass and depth of invasion. Results: 1) Male to female ratio was 2: 7 and mean age was 48 years. 2) The masses were located at posterior wall of body in 5 cases, fundus in 2 cases, anterior wall of antrum in 1 case, and enterior wall of body, lesser curvature in 1 case. 3) Resection of benign gastric tumors were readily achieved laparoscopically, aided by disposable stapling instruments. 4) Mean operation time was 120 minutes and mean hospital stay was 5.1 days. Conclusions: The benign gastric tumors can be managed laparoscopically with good results and this procedure provides another choice for the resection of them.
Correcting Shape and Size Using Temporary Filler after Breast Augmentation with Silicone Implants
신준호,서정석,양시강 대한미용성형외과학회 2015 Archives of Aesthetic Plastic Surgery Vol.21 No.3
Breast contour deformities, lack of volume and asymmetry are common confronted problems after breast augmentation with implants. These problems can be corrected by using temporary fillers or autologous fat grafts. The purpose of this study was to introduce our experience using long lasting temporary filler (Aquafilling®) for the correction of unfavorable results after breast augmentation with silicone implants. Two non-pregnant, non-breastfeeding women unsatisfied with previous breast augmentation with silicone implants were recruited for this study. All procedures were performed under local anesthesia with sedation. Efficacy and safety assessments were carried out at follow-up visits (1, 3, and 6 months). The study showed that Aquafilling® could provide satisfactory improvement in breast shape and volume. Also it showed that the corrected volume and shape were lasting without affecting the breasts’ original volume. Patients reported high satisfaction as Aquafilling® was generally well tolerated with no inflammatory reactions or serious adverse events. We recommend that Aquafilling® as a new option for the correction of minor problems after breast augmentation surgery with implants. However, further follow-up studies are required to observe long-term results.
신준호,손병호,김흥대 연세대학교의과대학 2007 Yonsei medical journal Vol.48 No.3
Purpose: Most patients diagnosed with right-sided colonic diverticulitis complain of right lower quadrant pain, which is frequently confused for appendicitis and therefore may result in unnecessary emergency surgery. In this paper we intend to differentiate between right-sided colonic diverticulitis and appendicitis by initial presentation in the emergency department. Materials and Methods: We retrospectively reviewed the medical records of 450 patients between January 1997 and July 2003. Among these patients, 92 with right-sided colonic diverticulitis were classified as group I; 268 patients with simple appendicitis were classified as group II; and 90 patients with perforated appendicitis were classified as group III. Results: Prodromal symptoms were less common in group I (p<0.05) than in the other groups. In comparing the location of maximal tenderness among groups, 19.6% of group I patients complained of maximal tenderness at a point lateral to McBurney's point, a greater percentage than those in groups II and III (p=0.002). Group I experienced less leukocytosis (10,913.8/mm3) than did groups II (13,238.3/mm3) and III (15,589.3/mm3). The percentage of segmented forms in the differential counts was also smaller in group I (73.6%) than in groups II (79.1%) and III (81.8%). In addition, the proportion of lymphocytes was larger in group I (17.7%) than in groups II (13.9%) and III (9.3%). Conclusion: Among patients complaining of right lower quadrant pain in an emergency setting, right-sided colonic diverticulitis must be considered in the following conditions to avoid unnecessary emergency operations: lack of prodromal symptoms, tenderness at a point lateral to McBurney's point, and absent or mild leukocytosis with a low fraction of segmented forms and a high fraction of lymphocytes in the CBC.
휘발성 유기화합물 제거를 위한 제강슬래그로 제조된 세라믹 여재의 흡착효율
신준호,김태희,박경봉,Sin, Jun-Ho,Kim, Tae-Heui,Park, Kyung-Bong 한국결정성장학회 2010 韓國結晶成長學會誌 Vol.20 No.3
We studied the adsorption efficiency of steelmaking slag in removing volatile organic compounds (VOCs) for increasing the recycling rate of steel-making slag. Ceramic filter was prepared by mixing the steel-making slag and the diatomite which is used as adsorbents due to the advantage of the high specific surface area and regular mesopores. The adsorption efficiency for VOCs removal was about 80%, 96% and 85% in acetaldehyde, formaldehyde and ammonia, respectively. The adsorption efficiency over 80% for all The gases showed the practical possibility as the adsorption filter. 본 연구에서는 제강슬래그의 재활용 범위를 확대하기 위하여 제강슬래그를 접촉여재로 활용한 유기화합물의 흡 착성능을 평가하였다. 또한 표면에 미세한 기공을 가지고 있어 흡착여재와 여과필터로 많은 연구가 되어온 규조토를 제강 슬래그와 혼합하여 세라믹 여재를 만들고 유기화합물 흡착 특성을 평가하였다. 유기화합물로는 아세틸알데히드, 포름알데히드, 암모니아 기체를 사용하였으며, 각각 80%, 96%, 85%의 흡착 효율을 나타내었다. 사용된 모든 기체에 대해서 80% 이상의 흡착효율을 나타내어 흡착여제로의 활용 가능성을 확인할 수 있었다.
Hurst 지수를 이용한 주식가격의 단기기억속성에 관한 실증연구
신준호,구기환 한국재무학회 2019 한국재무학회 학술대회 Vol.2019 No.05
지난 수십 년 동안 해외 여러 논문들에서 Hurst 지수(Hurst exponent)를 이용하여 시계열 방향성 예측, 장기기억속성 및 단기기억속성의 유무에 대해 지속적으로 연구되어왔다. 본 연구는 Hurst 지수를 이용하여 국내 개별종목 내 단기적인 비효율성의 존재 여부를 실증 적으로 확인함으로써 국내 개별종목에도 관련된 연구가 유의미함을 보이려 하였다. 해당 목적을 달성하기 위해 Hurst 지수와 볼린저 밴드(Bollinger band)를 활용한 평균회귀(Mean reversion) 전략을 제안하고, Hurst 지수로 측정된 시계열 데이터의 단기기억속성이 평균회 귀전략에서 유효하게 활용될 수 있음을 보였다. 더불어 Hurst 지수와 전략수익률 및 승률 (Winning rate)간 관계를 파악하였다. 투자자산의 극대화와 더불어 투자자의 심리적 안정을 위해 전략의 수익률, 승률 등을 고려하여 해당 전략의 최종 매개변수들을 선정하였다. 결 론적으로 본 연구는 Hurst 지수를 국내 개별종목 주가의 시계열 데이터에 적용함으로써 단기기억속성이 존재함을 확인하고, 국내 주식시장의 단기 비효율성 여부를 판단하였다. 유가증권 시장에 상장된 시가총액 상위 종목을 대상으로 검증하였으며, Hurst 지수와 볼린 저 밴드를 이용한 평균회귀전략의 효용성을 확인하였다.