충남대학교 학술림 산책로 훼손실태 및 관리방안에 관한 연구

이준우,김명준,최윤호,전용준,오도교,김민호,이소연,이경형 충남대학교 농업과학연구소 2004 농업과학연구 Vol.31 No.2

This study concentrates an the trail of the CNU(Chungnam National University) forest. The amount of use and the pattern of damage are considered, as well as the extent of environmental damage. Finally, some managerial strategies are proposed in connection with sustainable maintenance. The trail of the university forest is composed of three sections; one is the neighborhood park and the Institute of Information Technology/Communications, the second is the Institute of Information Technology/Communications and the Dormitory, and the third section is the Dormitory and the Foreign prof's Apt. The total length of the trail is 2.6km. The daily amount of use is 1,269 visitors per day. The amount of using increased three times the amount of that in 1998. This study shows the pattern of damage of the trail in the order of root-exposure, widening, rock-exposure, deepening and the divergence in the frequency of occurrence of all these factors. Environmental damage is also graded thus: grade 3 is 27.4m, grade 4 is 0.8m, grade 5 is 1.5m, and grade 6 is 0.2m. Accordingly, some managerial strategies were proposed in connection with the sustainable trail maintenance.

파랑하 세장형 파일 주변의 국부세굴 방지대책

이준한 ( Jun Han Lee ),김경호 ( Kyoung Ho Kim ) 충북대학교 건설기술연구소 2015 建設技術論文集 Vol.34 No.1

파일 주변에 발생하는 세굴을 감소시키는 방법은 크게 1)세굴에 대한 해저 지반의 저항력을 증가시키는 방법과, 2) 세굴을 일으키는 요인(하강류, 말굽형 와류, 배후류 등)의 흐름을 차단함으로서 세굴 유발능을 감소시키는 두 가지 방법으로 대별된다. 본 논문에서는 파일에 원형 반사판을 설치하여 접근 흐름의 하강 유속을 감소시켜 세굴을 억제하는, 후자의 방법에 대하여 실험적 연구를 수행하였다. 사용된 파는 주기와 파고를 각각 달리하는 정현파를 이용하였고, 세굴 방지공은 방지공의 간격파 부착되는 방지공익 개수를 변화시키며 감소 효율을 측정하였다. 측정된 감소공의 각각의 효율파 KC 수와의 상관성을 검토하여 최적화된 방지공의 구성을 분석하였다. 실험결과, 평균 감소율은 36.8%였으며, 가장 효과적인 세굴방지공은 두께와 간격비가 0.25일 때,평균 감소율이 52.3%였다. There are two methods to protect the damage of the scour around a pile. One is the method of increasing resistance of seabed, and another is that of controlling flow causing scour such as down flow, horseshoe vortex and lee-wake vortex. The former is to place protecting layer using riprap or tetrapod around a pile. The latter is to install protection devise. Experiment of the reduction of scour around a pile using protection wing are carried out under regular wave. Experiments are performed with the variation of the breadth and interval of the protection wing, wave periods(T) and wave heights (H). The each experiment shows that protection reduces the scour depth. Using the experimental results, combination of breadths and intervals the protection wing is found. Finally, the correlations of relative scour depth and KC number were analyzed. The average reduction of the scour depth by the protection wing is 36.8%. The breadth - interval ratio of protection wing was found to be 0.25 for the best combination, in which average scour depth reduction was 52.3%.

전통시장 시설현대화사업이 전통시장 활성화에 미치는 영향 분석

이준호(Lee, Jun-Ho),김영(Kim, Yeong),김경훈(Kim, Kyoung-hun) 한국지역개발학회 2013 韓國地域開發學會誌 Vol.25 No.1

After full opening of distribution market in 1996, its competitiveness was lost and declined due to the emergence of a variety of distribution types, change of customers consumption habits, and purchase patterns. Therefore, Korean government began to support the modernization projects of traditional markets through the establishment of law for the activation of existing traditional markets. In this regard, this study attempts to diagnose the problems of facility modernization projects through substantial and concrete effect analysis on facility modernization projects to provide the activation methods effectively. To achieve this goal, we analyzed the overall satisfaction and substantial effect of facility modernization projects for traditional markes by carrying out questionnaire surveys on merchants at Jun-gang Yudeung Market in Jinju. As a result of questionnaire survey, customers were generally satisfied with the facility modernization project, the market environment was improved and the customer numbers and sales amount which show the actual improvement also increased after implementing the projects. Also, it was proved that customer numbers and the sales amount after the facility modernization project of traditional markets increased and the degree in the increase was low level of 5~20%. Therefore, it was analyzed that sub-project items of the facility modernization project, which have a significant effect on the activation of traditional markets, had a low level of influence.

정신과에서의 뇌파

전태연,양완석,이경욱,채정호 한국의학사 2004 診斷과治療 Vol.24 No.1

양극성 장애 1형에서 종양괴사인자 베타 유전자 다형성

전태연,이경욱,배치운,김원,우영섭,채정호,박원명 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.6

Objectives : Bipolar disorder is known to have a high genetic predisposition. Recently, the main focus of etiologic studies in bipolar disorder has been concentrated on molecular genetic approach including gene polymorphism analysis. The present study was conducted to investigate whether TNFB polymorphism is associated with bipolar I disorder in the Korean population. Methods : 89 bipolar I disorder patients diagnosed by DSM-IV criteria were assigned as the patient group and 202 normal population, matched on age and sex from Catholic hemopoietic stem cell bank (Seoul, Korea), were enrolled as the control group in this study. Genotyping was performed by a polymerase chain reaction-restriction fragment length polymorphism method. All data was analyzed by x² test. Results : There were no significant differences in frequency of TNFB*1/1,TNFB*1/2 and TNFB*2/2 between bipolar I disorder patient group and normal control group. The frequency of TNFB*1 was not statistically different between bipolar I disorder patient group and normal control group. Conclusion : The difference of frequency in TNFB*1/TNFB*2 gene between the bipolar I disorder gropup and the normal contro1 could not be verified. The present result suggested that the gene polymorphism of TNFB may not play a significant role in susceptibility to bipolar I disorder. Studies with a larger number of subjects from different ethnic backgrounds, considring clinical phenotype and controlling various factors, should be launched to further determine the role of TNFB in bipolar I disorder.

국내 민간투자(SOC)사업의 효율화 방안에 대한 연구

이호경,김상철,윤준선,백준홍 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1

The purpose of this study is to examine the theoretical concept and practical example of Social Overhead Capital(SOC) project based on development of nation the world. Also, the critical access is to find the way we can develop domestic SOC project underway in private and nationwide. Furthermore, anther access is to propose clearly how to utilize BOT, BTO in financial, technical, CM method focusing on more systematic and effective result.

Hinman 증후군(비신경인성 신경인성 방광) 1예

이경욱,채정호,이승주,김세웅,박원명,전태연,김광수 大韓神經精神醫學會 2003 신경정신의학 Vol.42 No.3

Objectives : The Hinman Syndrome is a condition representing urinary voiding dysfunction in a neurologically intact child. This syndrome probably is an acquired behavioral and psychosocial disorders. We present a case presenting voiding dysfuntion with no neurologic etiology. Case : The departmcnt of urology consulted the department of psychiatry for a psychiatric evaluation of a 14-year-o1d girl with a history of recurrent urinary tract infections, enuresis, and urinary dribbling since early childhood. She visited the emergency room bccausc of severe abdominal pain and hematuria. She was admitted to the department of urology. Neurological tests showed no abnormality, but a retrograde cystogram showed free vesicoureteral reflux to the level of the dilated intrarenal collecting systems. Marked blunting and dilatation of the caliccs suggested longstanding urinary flow obstruction. She had a history of scparation anxiety disorder and was very competetive, perfectionistic, and nervous. She also had very poor relationships with her friends and had difficults in managing them. Afer admission, she had stent operation and cystostomy. Antidepressant and anxiolytic medications with supportive psychotherapy were administered to treat anxiety, tension and depression. Gradually, her depressive symptoms and voiding difficulties improved. Conclusions : Psychological factors such as a perfectionistic and obsessive personality, a history of severe separation anxiety, stressors from poor interpersonal relationships and Ihe failure of an entrance examination seem to have contributes to the development and exacerbation of the urinary dysfunction. Pharmacotherapy and supportive psycho-therapy may be efective in treating associated psychiatric problems of these patients with hinman syndrome.

오차 역전 기법을 이용한 인터넷 트래픽의 분석 및 예측

이경묵,이희춘,정영준 강원대학교 정보통신연구소 2004 정보통신논문지 Vol.8 No.-

An interest in traffic analysis has been increasing to evaluate the internet performance and stability between ISPs(Internet service Providers) In general, two parameters such as delay and packet loss are used for performance analysis Existing studies only discuss traffic measurement and simple performance test to check if measured values exceed their thresholds In this paper, we present a BP(Back Propagation) based evaluation scheme for performance estimation. The BP is a neural network, which can estimate the target performance continuously applying supervised learning patterns We have collected real data by measuring delay and loss over a commercial ISP line last two months and performed the BP computation using these data Then we show that the estimation mapping formula obtained between loss and delay can be used for performance evaluation metrics.

통풍 환자에서의 지질대사

이은우,강기서,강수용,이한준,김경환,임정일,박철경 중앙대학교 의과대학 의과학연구소 2001 中央醫大誌 Vol.26 No.2

Objective: To evaluate hyperlipidemia, a msjor tisk factor of coronary artery disease, frequently asscoiated with gout patients, we compared the mean lipid level of gout patient with that of non-gout male and accessed statistical significance for treatment of gout patient. Method: This study ws performed in the 266 male gout outpatients of the CAU medical center, who had serum lipid level test from Apr. 1996 to Aug. 2000. Serum uric acid, total cholesterol, triglyceride, HDL -cholesterol, and LDL-cholesterol level were measured after 12 hours of fasting. The patients with high lipid level were further evaluated into each type of the hyperlipidemia through electrophoresis study, and the test results were compared with that of the non-gout male adults(40∼60yr), and the statistical significance was examined. Results : The gout patients showed high levels of total cholesterol, triglyceride, and LDL-cholesterol. Especially they showed high level of triglyceride and LDL-cholesterol which suggested as the risk factors of atherosclerosis and coronary heart disease, but shoewed low level of HDL -cholesterol. But there were no definite relations between lipid level and other factors auch as age of patient, initial uric acid ;eve; and duration od gout. Conclusion: To evaluate the risk factors of atherosclerotic change of cadriac vascular system in gout patient, screening tests of serum lipid level of the patient seem mandatory.

조직공학적 연골생성에 있어서 연골막의 필요성

오경석,김해진,이동준,정재호,최준혁 大韓成形外科學會 2001 Archives of Plastic Surgery Vol.28 No.4