담관결석증이 동반된 담도회충증 1예

주봉덕,유철재,이헌영 충남대학교 의과대학 지역사회의학연구소 1990 충남의대잡지 Vol.17 No.1

Biliary ascariasis results not only in biliary tract disease, but also in secondary stone formation, hemorrhage into biliaty tract, acute cholecystitis, biliary perforation, invasion to pancreatic duct, pancreatitis, he%atitis, and liver abscess. In recent, we experienced a case of biliary ascariasis with concomitant biliary stones, which was identified by ultrasonogram percutaneous transhepatic cholangiography, and computed tomography, thereby reporting it herein with a review of literatures.

국내 이동통신시장의 네트워크 효과

주기중,안봉근 한국의사결정학회 2004 경영과학연구 Vol.12 No.-

본 논문은 국내 이동통신시장의 네트워크 효과를 측정하였다. 이를 위해 국내 이동통신서비스업체의 1998년부터 2002년까지의 사업보고서와 감사보고서 등 2차자료를 중심으로 시장점유율과 재무적 지표인 매출액, 당기순이익, 주당순이익을 분석하였다. 그 결과 시장점유율의 차이, 재무적 지표에서도 투자자산 대비의 매출액 차이, 당기순이익 차이, 주당순이익 차이에 있어서 이동통신시장에 먼저 진입하여 다수의 초기가입자를 확보한 시장선도기업과 2위, 3위 기업간의 차이가 시간의 흐름에 따라 더욱 크게 벌어져 네트워크 효과가 발생함을 알 수 있었다.

V1과 V2 피부분절에 국한된 감각저하를 보인 다리뇌출혈

나주영,김명국,유봉구 고신대학교 의과대학 2010 고신대학교 의과대학 학술지 Vol.25 No.2

Pontine tegmental hemorrhage involving the trigeminal tract, the medial lemniscus, and the spinothalamic tract frequently give rise to various sensory dysfunctions. However, isolated hypesthesia confined to certain parts of trigeminal sensory dermatomes is very rare. We experienced a case of impairment of pain and temperature sense over the unilateral ophthalmic (V1) and maxillary (V2) nerve distribution. Brain CT and gradient echo MRI showed a small hemorrhage in the right dorsomedial midpons. The segmental sensory impairment may explain by somatotopic representation of trigeminal nucleus and tract in the ventral to dorsal and cranio-caudal direction

새 차(New Vehicle) 실내공기 오염물질에 관한 연구

차봉주 외 순천향대학교 기초과학연구소 2011 순천향자연과학연구 논문집 Vol.17 No.2

In this study, the concentrations of indoor environment HCHO, VOCs in New Vehicle and Old Vehicle were surveyed. The result of the concentration of indoor air pollutants were 159.01㎍/㎥, 49.29㎍/㎥, 39.57㎍/㎥, 17.82㎍/㎥, 16.75㎍/㎥ and 15.01 ㎍/㎥ for toluene, HCHO, benzene, ethylbenzene, xylene and styrene, respectively. The concentrations of toluene were 261.29㎍/㎥ and 56.73㎍/㎥ respectively, in the New Vehicle and Old Vehicle. The concentrations were presented higher in the new vehicle.

과호산구증가증의 원인과 발생율에 대한 임상적 고찰

김봉준,이천우,조은주,김희규 고신대학교 의과대학 2010 고신대학교 의과대학 학술지 Vol.25 No.2

Background: Eosinophilia is associated with various primary and reactive conditions. The incidence and causes of eosinophilia might have changed through time according to the changes in the incidence of diseases such as cancer, chronic degenerative diseases, and so forth. This study was sought to investigate the causes and the incidence of hypereosinophilia and compare the results with those obtained by other reports in Korea. Methods: Eosinophilia and hypereosinophilia are diagnosed when the absolute eosinophil count is greater than 500/μL and 1,500/μL, respectively. Patient's clinical records were reviewed to determine the underlying clinical conditions in relation to what causes hypereosinophilia. Results: Out of 18,941 patients who undertook hematology profiles, 1,584 (8.4%) and 143 (0.75%) were found to have eosinophilia and hypereosinophilia, respectively. Among patients with hypereosinophilia, 106 patients (74.1%) had identifiable and/or possible causes. The major causes of hypereosinophilia were malignancy (48.1%), allergy and skin diseases (22.6%), infectious diseases (9.4%), gastrointestinal tract diseases (5.7%), and hepatobiliary diseases (4.7%). Conclusion: We found various causes of hypereosinophilia in this study, and the most common cause of hypereosinophilia was malignancy. Therefore, a thorough study in patients with hypereosinophilia is necessary.

日帝下 農地改良事業의 展開와 性格에 關한 硏究

朱奉圭 서울대학교 농과대학 농업개발연구소 1992 서울대농학연구지 Vol.17 No.2

일제하 산미증식계획은 수리사업추진에 따른 수리조합설치의 강권적인 작용 속에서 추진된바 있었고 그것은 소농의 수리조합비 부담을 가중케 하였으며 마침내는 자영농토의 포기 및 토지방매사태를 빚어내게 하였다. 일제하 산미증식계획 추진을 위한 수리조합의 설치는 한국에 있어서 근대적인 토지집중화의 촉구제로 작용된바 있었고 이것은 마침내 지주경제의 확대강화로 나타나게 되었다. 일제하 산미증식계획에 의한 수리사업의 진전에 수반하여 계급적 분화는 가일층 뚜렷하게 되었고 이에 따라서 농민층 분해가 촉구케 되었다.

IS 품질과 IS 성과간의 관계에 관한 연구

주기중,안봉근 한국의사결정학회 2001 경영과학연구 Vol.10 No.-

정보화, 지식화 사회로 접어들면서 기업에서는 IS의 도입과 활용이 급격히 증가하고 있다. IS를 통한 기업의 경쟁력을 갖기 위해서는 기업이 확보하고 있는 IS 품질과 성과의 정확한 측정이 선행되어야 한다. IS의 사용범위가 확대되고 사용이 간편화되면서 사용자들은 보다 다양한 IS의 품질을 요구하게 되었다. 본 연구는 선행연구의 고찰을 통해 사용자 중심의 IS 품질을 시스템 품질, 정보품질, 서비스 품질, 보안품질로 설정하고, IS 성과를 현재시점의 성과인 사용도, 사용자 만족, 미래시점의 성과인 지속적인 사용의도로 설정하여 IS 품질과 성과간의 관계를 분석하였으며, 그 결과 IS 품질과 IS 성과간의 관계에 대한 전체적인 모형은 모두 통계적으로 유의한 관계가 있는 것으로 나타났다.

活性炭에 의한 重金屬 시안化物 錯陰이온의 吸着特性

金柱奉,李成植,李來雨,孫晋彦 東亞大學校 1985 東亞論叢 Vol.22 No.1

It is the purpose of this study to investigate the possibility and mechanisms of complex formation for the removal of cyanide and toxic heavy metals from mining and electroplating industrial wastewater simultaneously. The adsorption forms of heavy metals from a synthesized wastecyanide water by activated carbon is discussed. Under the cyanide complexiation, mercury ion is adsorbed in the formation of complex anion as ?? and Hg(CN)₃, but zinc and cadmium are also as ?? and ?/?. The effects are established under the presence of ?? in the concentration range ?? mol/ℓto ?? mol/ℓand the presence of heavy metals.

진공 승화법에 의한 금속 디티조네이트 화합물의 분리거동과 물질전달

金柱奉,朴東源,李成植 동아대학교 공과대학 부설 한국자원개발연구소 1985 硏究報告 Vol.9 No.1

The heating temperature, vacuum condensing point, velocity of sublimation and distance of diffusion were measured according to the change of vacuum degree of metal dithizonates by vacuum sublimation method. Mass transfer was studied with their diffusion coefficient and mass transfer coefficient. Results obtained on the sublimatographic character of metal dithizonates are as follows; 1) t_(h)-V.C.P. graphs were obtained according to the heating temperature and change of vacuum degree and V.C.P. was increased according as vacuum degree is lower and heating temperature higher. 2) G-V.C.P. graphs obtained according to V.C.P. vs velocity of sublimation and velocity of sublimation was increased according as V.C.P. was higher. 3) The vapor pressure, velocity of sublimation and mass transfer coefficient of metal dithizonates are calculated by experimental data; P_(s)=kGⁿ k=0.63~0.80 n=0.12~0.23 _(r)P_(s)=k'Gⁿ' k'=0.43~0.83 n'=0.18~0.31.

에어로빅댄스가 비만여중생의 복부지방, 심장구조 및 혈청지질에 미치는 효과

신주화,김기봉 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2

The purpose of this study was to analyze the effects of aerobic dance on the changes of body composition. abdominal fat, ventricular structure and function, serum lipids and insulin in the obese middle school girls. The subjects recruited for the study were 20 obese middle school girls composed with 10 aerobic dancers who were participated in aerobic dance training for 20 weeks and 10 non-exercisers who do not exercise regularly. The statistical methods utilized in the study was paired t-test and the .05 level was initially established in significance. The findings of this study were as follows; 1. In the changes g fat. WHR and visceral fat volume were significantly decreased, but LVIDD, IVSD, LVPWD, LVM, LVDV, SV and FS were not changed significantly in aerobics training group. 2. In the changes TC, TG, LDL-C and insulin were significantly decreased, but HDL-C and LPL were significantly increased in aerobics training group. So aerobic dance training was effective to change body composition. ventricular structure and function. serum lipids and insulin. Therefore aerobic dance training will be effective for preventing the geriatric diseases caused by obesity. Further study should be analyzed in more specific measurements after more long combined training with aerobic and anaerobic exercises.