시스틴 결석 : 증례 보고 A Case Report

이길용,노준,정충식 조선대학교 부설 의학연구소 2002 The Medical Journal of Chosun University Vol.27 No.2

Cystine calculi is the consequence of cystinuria, an autosomal recessive defect of the transepithelial of cystine and dibasic acids in the kidney and intestine. The hardness and frequent reccurrence of cystine stones present a special challenge to the urologist. we report a case of 15-year-old man who had a cystine calculi, which was successfully treated with percutaneous lithotripsy (PCNL), extracorporeal shock wave lithotripsy (ESWL) &edical therapy include high fluid intake, alkalinization and chelating agent.

1100 및 6061 알루미늄 합금에 있어서 Strain Rate가 流動應力에 미치는 영향

鄭潾相,李鍾武,芮吉村 慶北大學校 産業開發硏究所 1976 硏究報告 Vol.4 No.-

The effect of the strain rate on the flow stress and the strain rate sensitivity were investigated for 1100 and 6061 aluminum alloy heat-treated in the different ways. The flow stress increment increased with the increase of the strain rate over the range of 0.01∼1.0 min_-1 in the furnace cooled 1100 aluminum specimens, while it was aproximately constant in the water quenched ones. When the ratio of the strain variation increased up to a hundred times, the value of the strain rate sensitivity decreased for the water quenched 1100 aluminum specimens. And the effect of the strain rate was negligible in either case of the furnace cooled 1100 aluminum and 6061­T_6 heat treated alloy. The load carring ability rised along with the extent of decrease in the strain rate over the range of 0.01∼1.0 min^-1 for the water quenched 6061 aluminum alloy.

갑상샘암 수술환자의 심리 및 신체적 불편감에 미치는 정보교육 프로그램 효과

이양희,정영,박연주,최길순,정지연 朝鮮大學校 附設 醫學硏究所 2008 The Medical Journal of Chosun University Vol.33 No.2

본 연구는 정보교육 프로그램이 갑상샘암 수술 환자의 심리 및 신체적 불편감 감소에 미치는 효과를 검정하기 위해 실시된 비동등성 대조군 전,후 시차 설계의 유사 실험연구이다. 자료수집 기간은 2006년 6월 17일 부터 9월 19일 까지 3개월간 이었으며, 연구 대상자는 일개 종합병원에 갑상샘암 수술을 받기위해 입원한 환자 가운데 6월 17일 부터 8월 3일 까지 입원환자 29명을 대조군으로 하였고, 8월 5일 부터 9월 19일 까지 입원환자 30명을 실험군으로 하였다. 연구도구는 심리적 불편감을 측정하기 위해 Derogatis 등(14)이 개발한 ‘자기보고식 다차원 증상목록(Multidimensional Symptom Inven- tory)검사를 사용하였고, 신체적 불편감 측정은 McCorkle & Young(16)이 개발한 도구를 사용하였다. 본 연구의 결과는 다음과 같다; 1) 정보교육 프로그램을 받은 실험군은 정보교육 프로그램을 받지 않은 대조군에 비해 심리적 불편감 정도의 차이는 통계적으로 유의한 차이를 보이지 않았다(p= .135). 다만 ‘근심 걱정’요인에서 유의한 불편감 감소효과를 보였다(p= 0.49) . 2) 정보교육 프로그램을 받은 실험군과 정보교육 프로그램을 받지 않은 대조군은 두군 모두 신체적 불편감 정도가 사후 유의한 수준으로 증가함을 보였다(p= 0.90). 결론적으로 본 연구를 위해 만들어진 정보교육 프로그램은 갑상샘암 수술 환자의 신체적 불편감 감소에는 효과적이지 못하였으나 심리적 불편감의 근심걱정 요인을 감소시키는데는 효과가 있음을 알게 되었다. Objectives: This study was designed as a non-equivalent control group pre and post-test quasi-experimental study to examine the effects of education program using information on the psychological and physical discomfort of patients undergoing operation for cancerous thyroid glands. Methods: The study covered for three months from June 17, 2006 to September 19, 2006. The subjects of this study were selected from those patients who were admitted in one of the general hospitals in order to receive the operation for cancerous thyroid glands. They include 29 control group patients who were hospitalized during the period of Jun 17th to August 3rd 2006, and 31 experimental group patients who were hospitalized during the period of August 5th to September 19th, 2006, respectively. The instruments utilized for conducting this study includes the Multidimensional Self-Report Symptom Inventory test originally developed by Derogatis & et al. (1983) for measuring psychological discomfort. And for measuring physical discomfort, the tools developed by McCorkle & Young (1978) was utilized. Results: 1) Hypothesis 1 “The level of psychological discomfort of the experimental group who completed the information education program would be decreased comparing with that of the control group who didn't complete the program” was partly supported (Worry & Anxiety factor: p= .049). 2) Hypothesis 2 “The level of physical discomfort of the experimental group who completed the information education program would be reduced comparing with that of the control group who didn't complete the program” was not supported (p= -.90). Conclusion: The information program provided for this study was proved to be not effective for decrease physical discomfort of the patients undergoing operations for cancerous thyroid glands but proved to be effective for decrease the anxiety factor of psychological discomfort.

레반다이어트 식품섭취가 비만여성의 신체구성성분, 혈중 렙틴 및 지질수준에 미치는 영향

이규성,유병렬,정락희,김문희,송봉준,이길자 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.2

This study was to varify the effects of levan diet administration on body composition, blood leptin level and lipids components (TC, TG, LDL-C, HDL-C) in obese women during 8 weeks. The subjects of study were divided into 20-29year group (n=15) and 30-39year group (n=15) randomly selected. Administration of Levan Diet in this study was 2 times (breakfast, lunch or dinner) per day, 11tablets per 1times. Statistical method for data processing produced mean and SD of total variable. To analyze difference between groups and periods had executed 2? ANOVA. This study was given conclusion as follows: First, systolic blood pressure showed decrease after administration of levan diet in 30-39years, but it was not statistically significant. Second, body weight and %fat gradually decreased according to the application period of levan diet administration in 20-29years and 30-39years, and it was statistically significant (p<.05). Third, blood leptin level and blood lipid levels (TC, TG, LDL-C) showed decrease after administration of levan diet in 20-29years and 30-39years, but it was not statistically significant. In conclusion, this study shows that the administration of levan diet play a positive role as assistant diet. Therfore, levan diet administration should be recommended as ergogenic aids for these who do obese adults.

황산스트론튬으로부터 탄산스트론튬으로서의 전환에 관한 연구

이성룡,조충형,황용길 東亞大學校 大學院 1995 大學院論文集 Vol.20 No.-

This study to convert strontium sulfate into strontium carbonate after reduction to strontium sulfide soluble in water was performed with sodium carbonate solution at various temperature. The results obtained from the above are as follows. The reduction temperature of strontium sulfate to strontium sulfide was 800℃. But strontium sulfide was reoxidized to strontium sulfate at the over 1000℃. Lid of reaction vessel closed up influenced increasing carbon activity during the reduction of strontium sulfate to strontium. Leachability of strontium sulfide reduction from strontium sulface in water was increased at high temperature, but decreased at 6mole carbon ratio because of excess carbon not reacted. Recovery of strontium carbonate from strontium sulfate was high at he high concentration of sodium carbonate solution, but low at 3 and 6 mole carbon ratio relatively Recovery of strontium carbonate from strontium sulfide was increased at high temperature, but decreased at 3 and 6 mole carbon ratio relatively. Agitation effect so accelerated to increase recovery of strontium carbonate. Impurities exist in cellestite as calcium sulfate, calcium carbonate, barium sulfate and barium carbonate compounds were not converted into other compounds during reduction of strontium sulfide from strontium sulfate. These compounds insoluble in water are able to be removed during water leaching of strontium sulfide.

全南地方에서 飼育中인 乳牛의 血液像에 關한 硏究

李政吉 全南大學校 農漁村開發硏究所 1973 農業科學技術硏究 Vol.7 No.-

The samples of blood from 140 Holstein cows in Chonnam area were examined and analysed on the basis of age. The results were as follows: 1. The mean values of erythrocyte counts and hemoglobin contents were low in comparison with other reported values. There were no significant differences of the values between age groups. 2. Total and differential leukocyte counts in percentage were same as other reported values. The total white cell counts decreased with age, while with the eosinophil counts the opposite was the case. 3. Mean absolute values in differential leukocyte counts were same as other values previously reported. 4. The observed neutrophil-lymphocyte ratio was 0.45, which was normal value. 5. The direct and indirect eosinophil counts were made on the same samples. The direct method gave higher estimated numbers of eosinophils, and there were no significant differences between the eosinophil numbers estimated by the two methods except in the age group of 3-year.

쥐의 實驗的 葡萄狀球菌性乳房炎에 關한 硏究

李政吉,康炳奎,李採瑢 全南大學校 農漁村開發硏究所 1980 農業科學技術硏究 Vol.15 No.-

The purpose of the present experiment is to determine the suitability of rat model for the experimental staphylococcal mastitis. A strain of Staphylococcus aureus isolated from a case of bovine mastitis was inoculated through the teat canal into the mammary gland of lactating rats. The rats were removed from their offspring or left with them to allow suckling, as required by the experimental design. 1. No generalized reactions or symptoms of mastitis were observed in all rats. 2. At necropsy, affected glands showed discoloration; abscesses up to 2.5mm in diameter were observed in one group of "lactating" rats inoculated with 10x10?? colony-forming units of staphylococcus. 3. Histologically fat droplets retained within the alveoli were prominent in many sections. Epithelial hyperplasia and slight interalveolar fibrosis were also noted. 4. The number of bacteria recovered from the inoculated mammary gland was smaller than that of bacteria inoculated. The bacteria were more readily recoverable from the mammary glands of "non-lactating" rats than from "lactating" rats. 5. To determine a suitable rat model for the experimental staphylococcal mastitis, further studies should be carried out, using different strains of Staphylococcus aureus and also different strains of rats.

전류의 양에 따른 백서의 대퇴골 골형성 변화에 관한 연구

김충길,이긍호 大韓小兒齒科學會 1991 大韓小兒齒科學會誌 Vol.18 No.1

The present study was undertaken to determine the optimum current range which can elicit an osteogenic response by observing the changes in osteogenesis induced when varying amount of constant direct current was applied to rat(Sprague-Dawley strain) femur. In oder to carry out this experiment,18 rats weighing about 200gm were selected and divided into 2 groups,one control group consisting of 3 rats and one experimental group consisting of 15 rats.The control group was received the dummy electrodes that were not connected to the power supply pack.The experimental group was subdivided into 3 groups according to the amount of constant direct current applied(5-15㎂,20-3㎂,and 40-50㎂). Under the general anesthesia with intravenous injection of thiopental sodium,all surgery was performed with aseptic precautions, and each animal was administered soluble cephradine by intramuscular injection at the end of the surgical procedure. A 0.010 inch stainless steel wire covered with polyethylene tube was tied at the right mid femoral portion of the rat, and this wire,serving as a cathode,was connected to the Constant Current Sink. Anode was implanted subcutaneously over the dorsum at the cross section area where the vertebral column and a line connecting the both iliac crests, and then connected to the Sink. All animals sacrificed at 7 days after application of electrical stimulation. 2 sites near the cathode were prepared for histologic findings including LM and SEM. Based on the present study the followeing conclusions can be made: 1.In both control experimental group,new bone formed by a process of intramembranous bone formation was appeared in the periosteal and endosteal surface of the bone at the vicinity of the cathode,and the area of bone resorption was found at the margin of the newly formed bone,and bone resorption was occurred between newly formed bone and old bone at the endosteal surface. 2.According to the increased amount of the direct current applied, a new bone formation was significantly occurred in a more rough and irregular pattern. 3.The optimum current range seemed to be in 5-30μA and the current in 40-50μA range caused tissue degeneration and severe bone resorption. 4.In the newly formed bone on the periosteal surface,the new bone trabeculae were formed at a more perpendicular direction to the long axis of the femur according to the increased amount of the direct current.

폐전선 피복재 건류탄을 이용한 제강분진처리를 위한 기초연구

황용길,이상화,이성룡,정석수,최재신,조충형 東亞大學校 1995 東亞論叢 Vol.32 No.-

Distilled carbon from waste electric wire coated by vinyl is used to recover valuable metal such zinc, lead and iron in dust. Pemeability and compressive tests are who done to present basic data on extraction of zinc in dust. Experimental results obtained from sintering property of steelmaking dust, distilled carbon from waste electric wire coated by vinyl and waste pulp sludge mixture briquet at various sintering temperature are as followings; Permeability is increased as increasing distilled carbon and pulp amount at higher temperature than room temperature condition. Compressive strength at room temperature is increased as increasing distilled carbon and decreasing waste pulp amount, but decreased as increasing temperature and waste pulp amount. Weight Loss reaction experiment is increased a increasing distilled carbon and waste pulp amount. ZnO and Fe₃O₄ are obtained from sample containing ZnO, Fe₂O₃ and ZnO at 800℃. Permeability test at 500℃ and 800℃ did not well, because of 13.3% CaO in distilled carbon. Sample because semmi melted state at 1000℃. Distilled carbon obtained from waste electric wire showed effect of reduction and flux material.

원형관로내 층류 맥동유동의 속도와 압력 분포에 관한 연구

박길문,유영태,위광환,이충주,정지철 조선대학교 생산기술연구소 1996 生産技術硏究 Vol.18 No.2

In this study basic equations for the pulsatile laminar flow in a circular rigid pipe containing a slightly compressible fluid are derived and analytical solutions for the distributions of wave propagation factor K, cross-sectional mean velocity u_(m) and pressure P are schematically developed and confirmed experimentally. The pulsatile flow with 0 ≤ f ≤ 48Hz and 0 ≤ Re ≤ 2500 generated by summing the oscillatory flow made by ball valve into steady one. The wave form of pulsatile flow is described as a longitudinal wave and particle velocities measured experimentally are group velocities of the wave packet which are always smaller than phase velocities which are approximate to the sonic velocity C when the radial dispersion and wall friction are negligible. Therefore wave number is approximated to k = ω/c for high angular velocity region. The axial pressures and centerline velocities were measured by strain-gage type pressure transducers and Pito-static tubes, respectively. The cross-sectional mean velocities calculated from centerline velocities with the parabolic distributions of the laminar flow and confirmed by using the ultrasonic flowmeter. We knew that axial distributions of oscillatory velocity and pressure coincide with thoeretical and depend on the Reynolds number and angular velocity.