Benzoate, m-Toluate, Phenol의 Pseudomonas putida에 의한 생분해

김장규,김석형,김태환,이대광,김남기 成均館大學校 科學技術硏究所 1993 論文集 Vol.44 No.1

It this study, basic data were obtained for the treatment of industrial waste water which includes aromatic compounds. Substrate concentrations used were 100ppm, 500ppm, and 1,000pprn and initial pH's were pH6, pH7, and pH8 in order to obtain the optimum conditions for treating benzoate, m-toluate, and phenol by Pseudomonas putida(KCTC 1644). Durations were 20hrs for 100ppm, 40hrs for 500ppm, and 60hrs for 1,000ppm before the static growth of Pseudomonas putida. 100% of 100ppm benzoate(0.31g cell/1) was biodegraded at pH6, pH7, and pH8 before 20hrs, 52.8% of 500ppm at pH8 in 40hrs, and 27.9% of 1,000ppm at pH8 in 60hrs. The best initial pH was pH8 for the biodegradation and the growth of Pseudomonas putida in benzoate medium. For m-toluate, the best initial pH was also pH8. At this pH, 40.6% of 10Dppm(0.31 cell/1), 21.9% of 500ppm, and 14.1% of 1,000ppm m-toluate were biodegraded respectively in limited time. But for phenol, the best initial pH was pH7. At this point, 9.8% of 100ppm(0.218 cell/1), 7.1% of 500ppm, and 4.7% of 1,000ppm phenol were biodegraded respectively. Therefore, the best carbon source in this experiment was benzoate. Pseudomonas putida was also able to biodegrade m-cresol, p-hydroxybenzoic acid, and benzaldehyde.

Original Articles : Clinical significance of occult hepatitis B virus infection in chronic hepatitis C patients

( Jae Young Jang ),( Soung Won Jeong ),( Sung Ran Cheon1 ),( Sae Hwan Lee1 ),( Sang Gyune Kim ),( Young Koog Cheon ),( Young Seok Kim1 ),( Young Deok Cho1 ),( Hong Soo Kim ),( So Young Jin ),( Yun Soo 대한간학회 2011 Clinical and Molecular Hepatology(대한간학회지) Vol.17 No.3

Background/Aims: We investigated the frequency of occult hepatitis B virus (HBV) infection in anti-hepatitis C virus (HCV)-positive individuals and the effects of occult HBV infection on the severity of liver disease. Methods: Seventy-one hepatitis B virus surface-antigen (HBsAg)-negative patients were divided according to their HBV serological status into groups A (anti-HBc positive, anti-HBs negative; n=18), B (anti-HBc positive, anti-HBs positive; n=34), and C (anti-HBc negative, anti-HBs positive/negative; n=19), and by anti-HCV positivity (anti-HCV positive; n=32 vs. anti-HCV negative; n=39). Liver biopsy samples were taken, and HBV DNA was quantified by real-time PCR. Results: Intrahepatic HBV DNA was detected in 32.4% (23/71) of the entire cohort, and HBV DNA levels were invariably low in the different groups. Occult HBV infection was detected more frequently in the anti-HBc-positive patients. Intrahepatic HBV DNA was detected in 28.1% (9/32) of the anti-HCV-positive and 35.9% (14/39) of the anti-HCV-negative subjects. The HCV genotype did not affect the detection rate of intrahepatic HBV DNA. In anti-HCV-positive cases, occult HBV infection did not affect liver disease severity. Conclusions: Low levels of intrahepatic HBV DNA were detected frequently in both HBsAg-negative and anti-HCV-positive cases. However, the frequency of occult HBV infection was not affected by the presence of hepatitis C, and occult HBV infection did not have a significant effect on the disease severity of hepatitis C. (Korean J Hepatol 2011;17:206-212)

연속 저항 회로망을 이용한 국소 광적응 윤곽검출 시각칩의 설계

김경문,김정환,박종호,공재성,신장규,이민호 경북대학교 센서기술연구소 2002 센서技術學術大會論文集 Vol.13 No.1

프로 축구팀 이미지가 기업 이미지에 미치는 영향

김장환,이성노,김민지,박진기 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

This Study has examined the influences of the images of the pro soccer teams on the images of the businesses by the method of covariance structure analysis. That is, the structural model of the influences of the images of the pro soccer teams and then the causal relationship of each variable has been analyzed quantitatively. For this purpose, the general people seeing the soccer games in the soccer grounds have been the population, and 280 sampling objects have been selected out of them by simple random sampling. Out of the 250(89.3%) collected questionnaires, 213(76.1%) questionnaires, excluding those questionnaires are those whose answers are insincere or some parts of which are missing, are as valid samples. As the measuring instrument for this study, the measures of Aaker (1997) are used, and the questionnaires used by Yu, Taeyong(1990) are revised and restructured to be fit for the purpose of the study. The method of the statistical analysis used to find out the influences of the pro soccer teams on the images of businesses are the covariance structure analysis. The findings concerning the structural models obtained on the basis of the methods of the study and the analysis of the data are as follows: The analysis of the images of the pro soccer teams on the images of businesses show that the factor of credibility influences the intellect, vividness, inhumanity and solidity, the factor of certainty influences vividness, solidity, the factor of advancedness influences inhumanity, wildness. On the other hand, the factor of interestingness doesn't influences the intellect, vividness, inhumanity, wildness, and solidity.

골프 라운딩 환경이 스포츠 몰입과 경기결과에 미치는 영향

김장환,임대욱,박진기 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

The present study analyzed change in golf players' performance and their immersion in sports according to golf rounding environment and change in golf players' performance according to their immersion in sports, with the object of providing basic materials for improving the quality of golf participants' golf activities. The subjects of this study were golfers who had just finished their golf rounding, A total of 250 golfers were selected through random sampling. Data were analyzed statistically through factor analysis, t-test, one-way ANOVA and regression. First, the condition of golf course and fairway and the manner of companions affect the player's psychological expectation in the golf rounding, preference for golf, desire to play golf, and perception on golf. Second, weather, the condition of golf course and fairway, the difficulty of golf course and the manner of companions affect the player's psychologcal expectation in the golf rounding, preference for golf, desire to play golf, perception on golf, information about golf, and interest in golf related imaginary acts. Third, immersion in acts according to the type of golf rounding was higher in competition than in leisure, This suggests that golf players who play golf for competition is more interested in golf acts than those who play for leisure. Fourth, golfers' performance is expected to be higher ft they have a good sleep on the previous night, if the condition of golf course and tee ground is satisfactory, and if they play with well-mannered companions. Fourth, golfers' performance is expected to be higher ft they have a good sleep on the previous night, if the condition of golf course and tee ground is satisfactory, and if they play with well-mannered companions. Fifth, golfers' performance is expected to be higher if they have high psychological expectation in the golf rounding, strong preference for golf, strong desire to play golf, and high immersion in golf competition.

수영장의 서비스 품질, 고객만족, 전환장벽이 고객충성도에 미치는 영향

김장환,박진기,예종현 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.3

This Study, Effects of Quality Services, Customer Satisfaction, and the Switching Barrier on Customer Loyalty of Swimming Pools, aims to determine the relationships between (1) services rendered, (2) customer satisfaction, and (3) the switching barrier of public swimming pools in Daegu, Korea with resultant (4) customer loyalty using the regression analysis. To achieve this goal, the Study establishes a hypothetical model based on prior related research, The Systematic Stratified Cluster Random Sampling Method was used in evaluating the sampling data The results of the research conducted using the above-mentioned study methods and data analysis are as following: 1. The more a customer was aware of the services provided by swimming pools, the closer the reciprocal personal relationship and the higher switching costs. Both the reciprocal personal relationship and switching costs are sub-variables of the switching barrier, However, when customers were well-aware of the services being provided, the attractiveness of alternatives seemed to decrease, 2. The more customers were aware of the services provided by swimming pools, the more they felt satisfied with a pools services. 3. As the reciprocal personal relationship developed and the switching costs increased, the switching barrier appeared to increase, However, the attractiveness of alternatives turned out to have minimal or no influence on the switching barrier, 4. The more customers felt satisfied with the pool they were using, the greater the switching barrier became and thus less likely that the customer would change pools, 5. As the switching barrier increased, the customer loyalty to a pool also improved, 6. The service quality, sub-variables of the switching barrier, customer satisfaction, and the switching barrier had significant impacts on customer loyalty to the swimming pool he or she was using at the time, In summary, a customers awareness of exemplary user services of a swimming pool helps him or her to better understand the sub-variables of the switching barrier (except the attractiveness of alternatives) and results in greater customer satisfaction and loyalty of a truly quality-conscious, health facility, In turn, a better understanding by a customer of a pool facilities, services and customer-conscious ness contributes significantly to building the switching barrier and results In higher customer loyalty by the client, Therefore, owners and operators of swimming pools in Dae gu, Korea should focus on three key elements to customer satisfaction: (1) quality of user-services, (2) customer satisfaction, and (3) the switching barrier, Prioritizing pool operations around these three fundamentals will enable pools in the area to gain market share and improve customer loyalty, long term.

고대 韓民族의 생물 이용과 음양오행론 : BC 8,000년부터 AD 100년경까지 from BC 8000 to AD 100

金玄,申桓浩,宋美長 한국정신과학학회 2001 韓國精神科學學會誌 Vol.5 No.2

Investigation fields of tins study has mainly focused on diversity of bio-organisms and principle of bio-organism utilization practiced by the inhabitants of Far Eastern Asia from BC 8000 to AD 100. The investigation shows that Korean ancestors before 6000 years utilized various bio-organisms similar to modem Koreans. We also learned from the study that utilization of various bio-organism induced anginal principle In their applications. It was confirmed that applications of this principle were practically used by Korean ancestors after BC 4000. Upon review carried out on the food, clothing and shelter with bio-organism application at that time, we could find out that principle of bio-organism utilization was based on theory of the cosmic dual forces and five elements.

주택가격 분석을 통한 친환경인증단지 실효성 연구 : 수도권 공동주택을 중심으로 Focused on The Multi-Family Housing in The Capital Region

김연준,성장환,안태선 대한건축학회 2004 대한건축학회논문집 Vol.20 No.12

The propose of this study is to evaluate the environment-friendly housing estates by the housing price analysis in the capital region of Korea For this purpose this study compares the certified and the non-certified housing estates in terms of the housing price differences between them. 20 certified and 40 non-certified estates were selected to analyze housing price difference according to the factors which affect the housing price In order to find out the evaluation factor differences T-test and Chai square were conducted and Cluster analysis was also done for the different housing estates It finds that no housing price differences between the certified and non-certified estates exist clearly It means the Environment-friendly certification system does not work effectively in the housing development in Korea From the price difference analysis this study suggests the environment elements to be provided In the new housing development It also discusses the reasons why the certification system does not operate in the housing development Finally, this study concludes with the some recommendations for the future Environment-friendly housing development

格技種目 選手의 Personality 特性에 관한 硏究

金正幸,趙章煥 龍仁大學校 1991 용인대학교 논문집 Vol.7 No.-

This study was performed in search for the personalities of the martial arts including Judo, taekwon-do, wrestling, boxing, weight-lifting etc, in collelge. 142 collegiate students were selected for the object. The result can be summarized as follows : 1. In sociality I (Family), Judo players had average quctient of 8.65(9.30%) and weight-lifting players showed 11.67%(9.48%) in average. 2. In sociality II (associates), Taekwon-do players showed 15.81 (9.19%) and wrestlers showed 22.03(9.40%) in average. 3. In conformity, Jodo players showed average quotient of 9.54(9.35%) and boxers had 11.14(19.52%). 4. In adaptability, weight-lifting players, showed average quotient of 14.98(± 6.16) and wrestlers had 21.33(9.63%). 5. In Mood, Taekwon-do players showed average quotient of 12.06%(9.20%) and wrestlers showed 16.29(9.46%). 6. In Emotional stability, Judo players, weight-lifting players and Taekwon-do players showed average quotient of 13.14(9.35%) 13.22(9.36%), and 13.54(9.37%), and boxers and wrestlers showed (9.66±5.12) and 18.31 (±4.89). 7. In leadership, Each of Taekwon-do players and weight -lifting players showed average quotient of 13.37(9.27%) and 13.68(9.29%), and Judo players and wrestling players showed each 15.10(9.48%) and 15.09(9.47%).

고조선 이후 한민족의 생물 이용과 그 변화 양상 : AD 100년경부터 현대까지 from AD 100 to modern times

金玄,申桓浩,宋美長 한국정신과학학회 2001 韓國精神科學學會誌 Vol.5 No.2

Although principle of bio-organism utilization was established from the Go-chosun, the period of ethnobiological bio-organism utilization started after the Go-chosun which was actively utilized bio-organisms according to principle. The period of ethnobiological bio-organism utilization is divided in to duration of application, curtailment and loss Consequently, the Korean principle and method of bio-organism utilization lost progressively. It must be actively used through reconsideration of modem scientific methods.