서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)

김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2

Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.

서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1997)

김재홍,문득곤,김정수,김용준,임동진,박상훈,김희성,이민수,송기훈,김갑형,김형석,성소영,이인섭,김석우,황지환,조창근,김경문,부태성 대한화학요법학회 2000 대한화학요법학회지 Vol.18 No.3

Background : In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. Objective & Methods : For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results : In 1997. 99 strains of N. gonorrhoeae were isolated, among which 45(45.5%) were PPNG. Conclusion : The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 45.5% in 1997.

황토골재를 사용한 콘크리트의 제특성에 관한 실험적 연구

황준필(Hwang, Jun Pil),김기범(Kim, Ki Beom),안기용(Ann, Ki Yong) 한국구조물진단유지관리학회 2009 한국구조물진단학회 학술발표회논문집 Vol.2009 No.2

For the characteristics of the concrete using Hwang-Toh aggregate, thermal Insulation capacity test, absorption capacity of heavy metals several test were performed. The study found that the Hwang-Toh concrete could improved the characteristics of conventional normal concrete. The Hwang-Toh concrete shows 67.7% lower thermal conductivity than normal concrete, so it shows good thermal insulation capacity. And the leaching test results showed that 96% of heavy metals such as Pb, Zn, Mn were absorbed by the Hwang-Toh concrete.

황토골재를 사용한 콘크리트의 제특성에 관한 실험적 연구

황준필 ( Hwang Jun Pil ),김기범 ( Kim Ki Beom ),안기용 ( Ann Ki Yong ) 한국구조물진단유지관리공학회 2009 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.13 No.2

For the characteristics of the concrete using Hwang-Toh aggregate, thermal Insulation capacity test, absorption capacity of heavy metals several test were performed. The study found that the Hwang-Toh concrete could improved the characteristics of conventional normal concrete. The Hwang-Toh concrete shows 67.7% lower thermal conductivity than normal concrete, so it shows good thermal insulation capacity. And the leaching test results showed that 96% of heavy metals such as Pb, Zn, Mn were absorbed by the Hwang-Toh concrete.

댐 붕괴 흐름에 의한 직립 홍수터의 범람 실험 및 모의

황승용(Hwang, Seung-Yong),김형석(Kim, Hyung Suk) 대한토목학회 2021 대한토목학회논문집 Vol.41 No.3

불연속 지형을 지나는 천수 흐름을 해석할 수 있는 Hwang의 기법이 채택된 수치 모의를 댐 붕괴 흐름에 의한 직립 홍수터의 범람 실험과 비교하였다. 모의 결과는 저수지, 저수로, 홍수터로 이루어진 실험 수로에서 측정한 결과와 잘 일치하였다. 특히, 댐 붕괴 흐름이 직립 홍수터로 차고 빠지는 과정이 잘 모의되었다. 흐름 저항의 종류에 따른 모의 결과의 차이는 미미하였다. 이 연구를 바탕으로 도심 하천의 범람 예측에서 정확도를 높일 수 있을 것으로 기대된다. Numerical simulation with Hwang’s scheme, which can analyze shallow-water flow over discontinuous topography, was compared with a laboratory experiment of flooding on a perpendicular floodplain with dam-break flows. The simulation results were in good agreement with the results measured in an experimental flume with a reservoir, channel, and floodplain. The wetting and drying process on a perpendicular floodplain with a dam-break flow was particularly well simulated. The difference in simulation results according to the type of flow resistance was insignificant. The results of this study are expected to improve the accuracy of predicting inundation in urban rivers.

원위 대퇴골의 고립성 골연골종에서 발생한 속발성 연골 육종 1례 보고

정필현,황장수,강석,김용민,오형호,채동주,김종필 동국대학교 경주대학 1996 東國論集 Vol.15 No.-

연골육종은 비교적 서서히 자라며 늦게 전이하는 악성 연골 종양으로 알려져 있다. 골 연골종에서 발생한 속발성 연골육종은 발생빈도는 드물며 타부위로의 전이가 적고 악성도가 낮은 경우가 많아 적합한 수술적 치료로서 좋은 예후를 보이는 것으로 보고되고 있다. 본 동국대학교 정형외과학 교실에서는 우측 대퇴골 원위부 골간단부에 생긴 고립성 골 연골종에서 이차적으로 발생한 연골육종을 치험한 바 문헌고찰과 함께 보고하는 바이다. A case of Secondary Chondrosarcoma Arising from Solitary Osteochondroma of the Distal Femur Department of Orthopaedic Surgery, College of Medicine, DongGuk University Phil Hyun Chung M.D., Jung Su Hwang M.D., Suk Kang M.D., Yang Mln Kim M.D., Hyung Ho Oh M.D., Dong Ju Chae M.D., Jong Pil Kim M.D. Chondrpsarcoma is a malignant cartilage-forming tumor that grows slowly and metastasis of this tumor occurs in late stage. Secondary chondrosarcomas arising from a solitary osteocartilaginous exostosis are rare and those have a better prognosis than other chondrosarcomas, and they rarely metastasize. We present our experience with a case of secondary chondrpsarcoma arising in solitary osteochondroma of distal metaphysis of right femur with clinical details.

담석증과 당뇨병

강진경(Jin Kyung Kang),최흥재(Heung Jai Choi),김경희(Kyung Hee Kim),황용(Yong Hwang),김용범(Yong Bum Kim),이원영(Won Yung Lee) 대한소화기학회 1985 대한소화기학회지 Vol.17 No.2

N/A Most authorities agree the higher incidence of gallstones among diabetic patient. Although many reports on gallstones or diabetes mellitus have been published, and actual correlation between gallstones and diabetes mellitus remains obscure. The purpose of this reports is to know the incidence of gallstone in diabetics and of diabetics in the patients with gallstone. Authors studied prospectively and clinically the diabetics in a group of 173 patients with gallstones and gallstone in a group of 98 diabetic patients who were admitted to Yonsei University Yong-Dong Hospital for the same period of April 1983 to May 1984. The results obtained are summarized as follow: The incidence of gallstone to general admission patients is 1.5% and the prevalence of diabetes mellitus to total in-patients is 0.8% The gallstone was found in 11.0% of diabetics and were diabetic 19.4% of patients with gallstones. The age of peak incidence of gallstones is 5th decade and female was more prevalent than male with the ratio of 1.37:1. The age of peak incidence of diabetes mellitus is 6 th decade and female is less prevalent with the ratio of 0.72:l.3, The most common characteristic finding of patients of gallstones with diabetes mellitus is symptomless(42.1%)4, There is no significant difference in serum levels of cholesterol and triglyceride between diabetic and non-diabetic groups or with and without gallstones. 5. Comparative study on location of stones revealed, 72.8% in gallbladder only, 12.7% in common bile duct only, 4. 6% in intrahepatic duct only, and remainders in multiple site. There is no significant difference in terms of location of stone between diabetic and nondiabetic group.

요관결석 환자에서 강성요관경하 제석술과 요관절석술에 대한 임상적 고찰

김홍섭,황선태,노용수,양상국,박치영 건국대학교 의과학연구소 1995 건국의과학학술지 Vol.5 No.-

Patients with ureteral calculi may be managed by expectant, invasive, or noninvasive treatments, depending on the stone composition, size and location, expectations of the patients, and experience of the surgeon. Currently ureteroscopic removal of stone(URS) has been popularly used for the treatment of ureteral calculi. From January 1992 to December 1994,we retrospectively compared the clinical results of 87 URS's to those of 31 ureterolithotomies and analysed the factors that affect the result of URS. The clinical results of two groups were summarized as follows The mean stone size was 7.6㎜ in URS group and 12.1㎜ in ureterolithotomy group. In 81.6% of URS group, the stone was located in the lower ureter and 71% of ureterolithotomy group in the upper ureter. The mean operation time, hospital stay and costs of the URS group, 96.6% of the stone were removed or disintegrated. There was no statistical significance in the success rate of URS along the sex difference, the location and size of stone. However, the higher the location of stone was, the more operation time spent. The complication rate of URS was estimated 26.5% but most of complications were resolved by conservative management. We conclusively suggest that the URS is the acceptable alternative modality of the ureterolithotomy for the treatment of the ureteral calculi.

窒素 및 加里 施肥水準이 飼料作物의 生育 및 乾物收量에 미치는 影響

黃鏞哲,金武成 경희대학교 부설 식량자원개발연구소 1984 硏究論文集 Vol.5 No.-

This study was conducted to investigate the effect of nitrogen and potassium fertilizers applied to forage crops grown alone and in mixture with grass and legumes of forage crops, on the yield of dry matter. The results are summarized as follows; 1. Nitrogen fertilizers for the yield of dry matter showed highly effective to orchardgrass in case of grown alone and were also effect of grown in mixture alfalfa and grasses, but potassium fertilizers did not show any significance on the dry matter yield increases compared with control. 2. In nitrogen fertilizer plots. alone and mixed sowings showed the total yields of dry matter in decreasing order of tallfescue>orchardgrass>alfalfa and alfalfa+orchardgrass (5:5)>alfalfa+orchardgrass(3:7)>alfalfa+orchardgrass(7:3)>alfalfa+tallfescue(3:7)>alfalfa+tallfescue (7:3)>alfalfa+tallfescue (5:5), respectively. 3. With nitrogen fertilizers for the yield of dry matter was highest effective with the application level of 20㎏/10a throughout the plots. except the with nitrogen plot of grown alone of alfalfa and orchardgrass. 4. In case of grown in mixture with grass and legume increasing total yields of dry matter with nitrogen and potassium fertilizers was ascribed to increase grasses. but botanical composition of alfalfa was decreased.

Ni鹽 溶液에서의 Ni 이온의 還元擧動

黃龍吉,金炳哲 東亞大學校 1987 東亞論叢 Vol.24 No.1

Electroless Nickel Plating was performed to investigate into the effect of change in deposite rate of nickelion, corrosion resistance of deposites layer and changes in hardness by heat treatment. The results obtained from this study are summarized as follows, The main factors controlling the deposite rate were NA₃C??. H??O??, 2H₂O and Pb(NO₃)₂. The highest hardness value obtained by heat treatment of deposite plating layer appeared to be H??975 at the temperature of 350。C for 1hour. The improvement of hardness value by heat treatment was caused by the formation of Ni₃P crystal from amorphous plating layer. The corrosion resistance of deposite layer was increased with increasing phosphorous content. The phosphorous content was related with PH of bath solution. Among the three specimens obtained by PH 4.1, 5 and 6, The highest corrosion resistance appeared for the specimen of PH 4.1 under the condition of immersion of the specimen in IN-HNO₃