서평 : 생물환경공학 - 생물학적 처리 원리와 응용 - ( 공성호, 생물산업, 2002 )

공성호 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 2002 생물산업 Vol.15 No.2

전시발표 : F 분야: 임산에너지 ; P-68 : 용탈처리와 습식 반탄화 연속처리에 의한 팜 부산물(Empty Fruit Bunch, EFB)의 연료적 특성 향상

공성호,이형우,이재원 韓國木材工學會 2016 한국목재공학회 학술발표논문집 Vol.2016 No.-

염촉매 습식 반탄화 바이오매스의 연료적 특성 연구

공성호,이재원 韓國木材工學會 2016 한국목재공학회 학술발표논문집 Vol.2016 No.2

Reverse double-stapling esophagogastrostomy in proximal gastrectomy

공성호 대한외과학회 2010 대한외과학회 학술대회 초록집 Vol.2010 No.11

[< 전시-P-84 >] 리그닌 분석방법에 따른 측정값 비교 및 통계적 분석

공성호,이재원 韓國木材工學會 2017 한국목재공학회 학술발표논문집 Vol.2017 No.1

소아 경부 감염의 임상 양상과 농양 형성의 예측 인자

공성호,최용준,유건희,김윤우,박주현,임윤성 대한이비인후과학회 2017 대한이비인후과학회지 두경부외과학 Vol.60 No.2

Background and Objectives Abscess of neck is a life-threatening disease in children. Detection of abscess is important because it is essential for the determination of surgical drainage. However, clinical diagnosis is difficult, because children are seldom able to verbalize their symptoms or cooperate with physical examination. This study aims to review the clinical characteristics of 157 pediatric patients with neck inflammation and investigate the relative risk factors for abscess. Subjects and Method Pediatric patients who were admitted to Dongguk University Hospital from January 2005 to July 2014 with acute neck inflammation were reviewed. All 157 pediatric patients were divided into two groups, based on radiologic findings with and without neck abscess. Results Of 157 patients, 53 children were diagnosed with neck abscess, and peritonsillar abscess was the most common type of neck abscess followed by submandibular abscess, retro·parapharyngeal abscess and posterior triangle & other abscess. The dominant pathogens, staphylococcal infection (≤2 yr) and streptococcal infection (>3 yr), was different for the different age group. The abscess group except for peritonsillar abscess was characterized by younger age, higher heart rate and WBC count, and longer hospital days than those without abscess (p=0.026, 0.026, <0.001, 0.007 respectively). Multivariate analysis revealed younger age (≤24 mo) and higher heart rate were independent predictors for abscess formation (odds ratio: 3.022, 2.923). Conclusion Pediatric patients with high heart rate & younger age are at risk for abscess formation; meticulous care and early imaging work up are required in younger children with deep neck infection, and especially with higher heart rate. Korean J Otorhinolaryngol-Head Neck Surg 2017;60(2):76-82

국내탄을 이용한 활성탄의 제조와 흡착특성에 관한 연구

공성호,김재호 漢陽大學校 環境科學硏究所 2001 環境科學論文集 Vol.22 No.-

본 연구는 국내무연탄의 비연료 활용을 위해 국내무연탄을 원료로 하여 흡착제를 제조하는 것을 목적으로 하고 있다. 우선 활성탄 원료를 제조하기 위해서 중액선탄 방법으로 저회분 탄을 제조하였다. 파쇄탄과, 미분탄과 석탄 타르피치를 혼합하여 제조한 조립탄을 원료로 스팀과 CO_2로 활성화하여 활성탄을 제조하였다. 활성화 전에 알칼리로 처리하여 화학적 전처리의 영향을 고찰하였다. 활성탄의 흡착성능을 위해 액상으로는 페놀, 클로로포름을 중금속 시험으로는 Fe, Cr을, 그리고 기상용 실험으로는 벤젠, 사염화탄소 등을 사용하여 비교하였다. 활성화 결과 파쇄원탄으로 제조된 활성탄은 표면적 650㎡/g, 조립활성탄은 920㎡/g의 활성탄이 제조되었다. 파쇄원탄을 NaOH로 강한조건에서 화학적 처리한 결과 표면적이 650㎡/g에서 840㎡/g으로 증가하였으며 온순조건에서는 기공부피와 burn-off을 증가시키는 효과를 보였다. 화학적으로 처리된 파쇄활성탄과 CO₂로 활성화된 조립활성탄은 미세기공이 발달하여 기상용에 적합하였으며 스팀으로 활성화된 조립활성탄은 기공이 다양하게 발달하여 액상용으로 적합하였다. TPurpose of this study is development of activated carbons from domestic anthracite for non-fuel use. In order to obtain raw materials for activation, preparation of low ash coals by heavy media separation was conducted. Activated carbons were made with steam or CO₂ from crushed coals and granules made by mixing of pulverized coal and coal tar pitches. Treatment with alkali hydroxides was conducted prior to activation for the investigation of the effect of chemical pretreatment on the activation. Test for liquid phase organic compound removal, heavy metal removal and gas phase adsorption have been performed with phenol, chloroform, Fe, Cr, and with fumes of benzene and carbon tetrachloride. Activated carbons of surface area of 650㎡/g from crushed coals and of 920㎡/g from granules were produced. Chemical pretreatment has an effect on the surface area increase from 650㎡/g to 840㎡/g for the crushed raw coals at the strong pretreatment condition, and on the increase of pore size and burn-off by mild pre-treatment condition. It was found that the activated carbons from crushed coals by chemical pretreatment and from CO₂ activation have well developed microporosity, and that the activated carbons from granules by steam activation have wide ranges of porosity that are suitable for gas phase and liquie phase adsorption respectively.

하부 1/3에 위치한 위암에서 침습 깊이에 따른 림프절 전이의 양상과 적절한 림프절 절제의 범위

공성호,유문원,김종원,이혁준,김우호,이건욱,양한광 대한외과학회 2009 대한외과학회 학술대회 초록집 Vol.2009 No.11

건강검진에서 발견된 위선암 환자의 임상병리학적 특성

공성호,이혁준,양한광,이건욱,최국진 대한외과학회 2002 대한외과학회 학술대회 초록집 Vol.2002 No.10

Intraoperative Neurophysiologic Testing of the Perigastric Vagus Nerve Branches to Evaluate Viability and Signals along Nerve Pathways during Gastrectomy

공성호,김성민,김동건,박기홍,서윤석,김태한,Il Jung Kim,Jeonghwa Seo,Young Jin Lim,Hyuk-Joon Lee,Han-Kwang Yang 대한위암학회 2019 Journal of gastric cancer Vol.19 No.1

Purpose: The perigastric vagus nerve may play an important role in preserving function after gastrectomy, and intraoperative neurophysiologic tests might represent a feasible method of evaluating the vagus nerve. The purpose of this study is to assess the feasibility of neurophysiologic evaluations of the function and viability of perigastric vagus nerve branches during gastrectomy. Materials and Methods: Thirteen patients (1 open total gastrectomy, 1 laparoscopic total gastrectomy, and 11 laparoscopic distal gastrectomy) were prospectively enrolled. The hepatic and celiac branches of the vagus nerve were exposed, and grabbing type stimulation electrodes were applied as follows: 10–30 mA intensity, 4 trains, 1,000 μs/train, and 5× frequency. Visible myocontractile movement and electrical signals were monitored via needle probes before and after gastrectomy. Gastrointestinal symptoms were evaluated preoperatively and postoperatively at 3 weeks and 3 months, respectively. Results: Responses were observed after stimulating the celiac branch in 10, 9, 10, and 6 patients in the antrum, pylorus, duodenum, and proximal jejunum, respectively. Ten patients responded to hepatic branch stimulation at the duodenum. After vagus-preserving distal gastrectomy, 2 patients lost responses to the celiac branch at the duodenum and jejunum (1 each), and 1 patient lost response to the hepatic branch at the duodenum. Significant procedure-related complications and meaningful postoperative diarrhea were not observed. Conclusions: Intraoperative neurophysiologic testing seems to be a feasible methodology for monitoring the perigastric vagus nerves. Innervation of the duodenum via the celiac branch and postoperative preservation of the function of the vagus nerves were confirmed in most patients.