팔영산 삼림식생과 토양환경

이호준,김종홍,배병호,박문수,전영문,강재구,신정식 建國大學校基礎科學硏究所 1997 理學論集 Vol.22 No.-

전라남도 고흥군 소재 팔영산 (608.6 m) 일대의 삼림군락에 대한 색생조사를 1993년 10월부터 1995년 7월까지 실시하였다. 조사한 자료는 Z-M 방식에 의해 종조성표를 작성하였다. 이에 따라 삼림군락은 신갈나무군락, 졸참나무군락, 굴참나무군락, 서어나무군락, 소나무군락등 5 개 군락으로 분류되었다. 입지와 환경과의 유기적 관계를 조사하기 위해 토양을 분석한 결과, 신갈나무군락은 토양의 비옥도가 높은 산의 능선 부위에 집중 분포하였으며, 굴참나무군락과 소나무군락은 토양의 비옥도가 낮고 비교적 건조한 고도 400 m 이하 지역에 주로 군락을 형성하고 있었다. 또한 졸참나무군락은 고도 300 - 550 m 이내에서 부분적으로 나타났으며, 서어나무군락은 토양의 비옥도가 양호한 고도 300 - 550 m 사이의 골짜기 주변에 국지적으로 분포하였다. 팔영산 삼림식생의 특징은 상록활엽수림이 형성될 수 있는 지역이나 후박나무, 동백나무, 사스레피나무 등의 몇몇 종을 제외하고는 상록활엽수의 분포를 확인할 수 없었으며, 일부 식재림을 제외한 대부분의 지역이 낙엽활엽수와 소나무의 혼효림으로 구성되어 있었다. The phytosociological study forest vegetation on Mt. Palyoung (608.6 m) was investigated from October 1993 to July 1995 in Koheug-Gun, Cheonnam province. According to Z-M method, the floristic composition table of the forest vegetation was divided into five community as follows; Quercus mongolica community, Quercus serrata community, Quercus variabilis community, Pinus densiflora community, Carpinus laxiflora community. The soil was analyzed to investigated the soil conditions and soil fertility. As a result, the organic matters which showing soil fertility were found to be low Quercus variabilis and Pinus densiflora community at comparatively xerophic conditions, below 400 m altitude, while they were increased in Quercus mongolica community on mountain ridge, and that Quercus serrata community was appeared 300-550 m altitude around mountain stream to moderate soilfertility. The forest vegetation of Mt. Palyoung area unconfirmed capable of evergreen broad-leaved forest, but appeared to Machilus thunbergii, Camellia japonica and Eurya japonica species etc. On the other hand, surveyed site's vegetation was distributed mixed forest of deciduous leaved forest and Pinus desiflora, except for some afforestation.

전격성 경과를 취한 만성 호산구성 폐렴 환자 1예

윤호상,진춘조,유광하,이상엽,이수인,정상만,김선두,이순제,이길도,전혜정 건국대학교 의과학연구소 2000 건국의과학학술지 Vol.10 No.-

Chronic eosinophilic pneumonia(CEP) is a rare disease of unknown etiology characterized by chronic infiltration of the lung with eosinophils. It presents with profound systemic symptoms comprising fever, night sweats, weight loss, dyspnea and blood eosinophilia with nonsegmental air-space consolidation confined to the outer third of the lung, the "photographic negative of pulmonary edema". Histopathologic features of chronic eosinophilic pneumonia are intraalveolar and interstitial infiltrations with eosinophils, histiocytes, giant cells, scattered lymphocytes and plasma cells. Glucocorticoid therapy cause prompt resolution of symptoms as well as disappearans of blood eosinophils, elevated serum Ig E levels and the roentgenographic lesions. Infrequent radiographic findings include nodular infiltrates, consolidations, cavitations, atelectasis and pleural effusions. Deaths from CEP although rare, have been reported, but the majorities of CEP have benign courses and do not need a therapy with ventilator. We report a case of chronic eosinophilic pneumonia, which had a sudden course associated with diffuse pneumonic consolidations on the both lung and bilateral pleural effusion.

서남해안 지방에서 발생한 Vibrio vulnificus 감염의 임상적 고찰

조남수,김춘호,김성중,김용배,조수형,안태훈 大韓應急醫學會 1999 대한응급의학회지 Vol.10 No.2

Background: V. vulnificus infection in found between May and October when the man who has hepatic disorder or immunity disorder eats raw shellfish and it causes the systemic symptoms such as sudden fever, chilling, shock and stupor and local skin lesions like bleb and necrosis. This disease has 46∼61% of fatality rate in spite of intensive treatment. This study conducts the examination of history, epidemic study, ingesting raw fish and bacteriologic investigation in the patients with similar clinical symptoms to the above and examines the diagnostic dorrelations. Method: It is conducted with 31 cases who admitted at emergency medical center of Chosun University Hospital from May of 1995 to September of 1998 and are suspected to have V.vulnificus infection. It analyze bacteriologic examination, the survey of residence, eating raw shellfish, hepatic disorder, alcohol drinking habits and skin lesion. Results: 1) The rate of male and female is 15.5:1 and in the age, 18 cases are in fifties, seven are in forties and six are over sixties. 2) Clinically, V.vulnificus is detected in 20 of 31 cases which is suspected to have V.vulnificus infection and it is not detected in 5 cases. Other bacteria are detected in 6 cases and they include staphylococcus aureus, pseudomonas species, β-hemolytic streptococcus and E-coil. 3) In local distribution, Kohung has 10 cases, Shinan and Mokpo have six, Haenam and Kangjin have five, Yongkwang and Muan have five, Naju and Yongam have five and Kwangju has one. 4) Eating fishes and raw shellfishes is found in 31 cases. In the kind of shellfishes, eating raw clam is 10 cases, raw thin-shelled surf calm is 8 cases, raw oyster is 5 cases and sliced raw fish is 4 cases and pickled sea foods are 4 cases. 5) The cases with hepatic disorder are 23 and 15 cases with heavy alcohol drinking Carrier are included. The cases with Diabetic Mellitus are four and those with pulmonary tuberculosis are two. Two cases have not basal diseases. 6) On the opinion of skin lesion, 20 cases show vesicular necrosis, 7 cases have dendriform erythema, 3 cases have papule and one case doesn't show clear skin lesion. Conclusion: When V.vulnificus infection is detected, it is fatal and those who have hepatic disorder or heavy alcohol drinking habit must avoid eating fishes and shellfishes raw in summer. It is important to have emergency treatment for the patient whose V.vulnificus infection is suspected. It is considered that the administration of initial antibiotics is effective by generalizing the clinical symptom, epidemic opinion and patient history even before the results of bacteriologic confirmed.

Phase-Type 분포를 이용한 보증서비스 비용 분석

김호균,백천현,조형수 한국경영과학회 2000 韓國經營科學會誌 Vol.25 No.3

We consider the question of servicing warranties for repairable items. During the warranty period, each time an item fails the manufacturer has the obligation to restore the item to operational condition either by repairing the item or by replacing it by a new item. For products with phase-type lifetime distributions where the phases represent the condition of the item. We develop algorithms to determine the expected cost of servicing a warranty and use it in making the repair/replacement decision. Illustrative numerical examples are presented.

改善된 Ritz벡터를 이용한 構造物의 動的 解析

金春浩,沈在守 慶熙大學校 1991 論文集 Vol.20 No.-

Direct integration methods are not economical for dynamic analysis of structures in time domain. For economical analysis, the dimension of system is generally reduced using the eigen solution. Eigen solution, however, includes a lot of calculations, and neglects the characteristics of dynamic loading. Therefore the economical analysis method incoporating the modified ritz algorithm considering load characteristics is presented for dynamic analysis of the structures. The results show that the modified ritz vector performs better than the eigen vector in economics and accuracy.

土留構造物의 버팀과 Anchor 軸力에 關한 硏究

서정호,류제천,김송만,박춘수 충남대학교 산업기술연구소 2000 산업기술연구논문집 Vol.15 No.2

When SUNEX program was used to research for design axial force of strutting and anchoring for retention. In comparing to horizontal displacement and material force calculated elasto-plastic analysis that found following conclusion. 1)Increasing the initial axial force of strutting and anchoring for the retaining wall, the effect of wall displacement control become increase. 2)In the last stage of excavation, respectively, the reaction of strut and anchor, loading the initial axial force, increase in a linear. 3)Loading the initial axial force, bending moment is inclined to reduce, but the shearing force is increase. Therefore the safety of the cross section of wall have to be a fully assessment. 4)I propose the result in this study that the design axial force of strutting is "design load×(1-a), and the design axial force of anchoring is "design load×1.5×(1+a)". From the comparative study, I proposed the Design Axial Force of strutting and anchoring for retention. However further study is needed to verify in this value using another research and actual design.

제왕절개술 환자에서 수술전 투여한 ketamine의 혈청 interleukin-6 및 수술후 통증에 대한 효과

김진수,김유재,안기량,김천숙,김일호,한찬수 순천향의학연구소 1997 Journal of Soonchunhyang Medical Science Vol.3 No.2

The inflammatory reaction to tissue damage during surgery may induce central sensitization followed by hyperalgesia. Previous studies suggest that central sensitization is related to N-methyl-D-aspartate (NMDA) receptor activation, which can be blocked with NMDA antagonist, ketamine. Thus, we compared the effect of preoperative intravenous and epidural low doses of ketamine with placebo on serum interleukin-6 (IL-6) level and postoperative pain. ASA class I and II women scheduled for C-sections received intravenous ketamine 0.15mg/kg(group 2) or placebo(group 1), or epidural ketamine(0.15 mg/kg) before the operation. IL-6 levels were measured before and during the operation, and 8, 24, and 48 hrs after the operation. Visual Analogue Scales(VAS) and Verbal Ration Scales(VRS) were measured at 8, 24, and 48 hrs after the operation. Serum IL-6 levels at 8, 24, and 48 hrs after the operation were significantly lower in the intravenous ketamine and epidural ketamine groups than in the control group. VAS at 8 hrs and 48 hrs after the operation were significantly lower in the epidural ketamine group. VAS at 8 hrs and 48 hrs after the operation were significantly lower in the epidural ketamine group than in the control and intravenous ketamine groups. In conclusion, in the preoperative intravenous and epidural administration of low doses(0.15mg/kg) of ketamine, both are effective in reducing postoperative IL-6 levels. Epidural Ketamine is more effective than intravenous ketamine in postoperative pain control.

기도이물에 관한 임상적 고찰

한찬수,김태정,김일호,김유재,김천숙,안기량 순천향의학연구소 1996 Journal of Soonchunhyang Medical Science Vol.2 No.2

Aspiration of a foreign body in the airway is common cause of sudden obstructive breathing, crouping cough, hoarseness, and wheezing. Especially that caused serious problem in case of the young children. A past history of foreign body aspiration is itself an indication for bronchoscopic examination of the airway, because some children with aspirated foreign bodies are without symptoms and chest X-ray films may not show abnormalities. So the anesthesiologist should take a notice of removing foreign body in the anesthetic procedure. The author have experienced 36 cases removal of foreign bodies in the airway under general anesthesia from July, 1982 to January, 1996 in Chunan Hospital, College of Medicine, Soonchunhyang University. The results were as follows 1) Among the 36 cases, 25 cases(69.7%) were under the age of 5. The ratio of male and female was 1.8 : 1. 2) In duration of lodgement, there was most frequent within one day in 15 cases(41.7%) and the longest duration was 20 days. 3) The most common symptom, sign and auscultation finding were cough 19 cases(52.8%). chest retractions 7 cases(19.4%) and decreased breathing sound 20 cases(55.6%) 4) Abnormalities in the chest X-ray were found in 15 cases(41.7%) among 36 cases. 5) Vegetable foreign bodies, expecially peanut were the most common airway foreign body(28.7%), followed by plastic foreign body(14.4%) and mucous plug(11.3%). 6) The foreign body involved the right bronchus 16 cases(45.7), left bronchus 10 cases(28.6%), trachea 5 cases(14.3%), and larynx 4 cases(11.4%). 7) Foreign body induced complications occurred in 9 cases(25.0%); pneumonia 8 cases and pneumomediastinum 1 case, and all of postoperative complication was pneumonia(25.0%). 8) 34 foreign objects(94.4%) were removed by endoscopy but tracheostomy was required in two patients.

미용사들의작업관련성 근골격계 장애에 관한 연구

박수경,최영진,문덕환,전진호,이종태,손혜숙 大韓産業醫學會 2000 대한직업환경의학회지 Vol.12 No.3

목적 : 미용사의 작업관련 근골격계 장애 실태와 관련 요인을 알아보고자 한 것이다. 방법 : 최종 대상이 된 미용사 267명에 대하여 2000년 3월부터 5월까지 Karasek의 J7Q와 N10SH의 표준화 설문지를 이용하여 일반적 특성, 직무관련 스트레스, 근골격계 장애 자각증상 등을 자기 기입식으로 작성하게 하였다. 결과 : N10SH 감시기준에 의한 근골격계 자각 증상 호소율은 전체적으로 94.4%으로 높은 편이었으며, 각 신체부위별로는 어깨 부위(61.0%), 목 부위(59.9%), 허리 부위(53.2%), 손 및 손목 부위(41.6%)의 증상 호소율이 비교적 높게 나타났으며, 상대적으로 무릎 및 허벅다리 부위(36.7%), 발 및 발목 부위(34.8%), 등 부위(28.8%), 팔 및 팔꿈치부위 (28.5%), 종아리 부위 (28.5%), 손가락 (22.8%) 등은 낮았다. 다변량 분석 결과, 미용사들의 WRMDS는 직무 스트레스와 건강관련 습관 등에 영향을 받은 것으로 관찰되었으며, 부위별로 목부위는 직무의 불안정성, 허리부위는 여자, 음주, 결정의 허용범위, 손 및 손목부위는 음주, 무릎 및 허벅다리 부위는 흡연, 발 및 발목부위는 흡연, 결정의 허용범위, 그리고 등부위는 직무의 불안정성 등이 유의한 요인으로 관찰되었다. 결론 : 주관적인 증상 호소만을 이용한 제한점에도 불구하고 산업보건의 명확한 대상이 되지 않고 있는 미용사 등의 서비스업 종사자에 대한 WRMDS 연구의 기초자료로서 활용될 수 있을 것이다. Objectives : To determine the prevalence and related factors of work related musculoskeletal symptoms in hairdressers. Methods : Informations on general characteristics, job strain, and musculoskeletal symptoms were obtained by a self-administered questionnaire, through adopting NIOSH instrument and JCQ (Job content questionnaire) , from 267 hairdressers, between March and May, 2000. Results : The symptom prevalence by N10SH surveillance criteria in total was high as 94.4%; shoulder (61.0%), neck (59.9%), low back (53.2%), hand and wrist (41.6%), etc. In multiple logistic regression, significant factors affecting the symptoms by body region , job insecurity on neck; gender, alcohol, decision latitude on low back; alcohol on hand and wrist; smoking on thigh and knee; smoking, decision latitude on ankle and foot; job insecurity on upper back. Conclusions : Musculoskeletal symptoms of hairdresser were highly prevalent, and associated with job strain and their health habits. This Is a basic data of work related musculoskeletal disorders among hairdressers who are not the subjects of occupational health service at the present time in Korea.

의사국가시험성적과의 상관관계로 살펴본 임상종합평가시험의 가치 : 2002년 연세대 원주의대 졸업생을 대상으로

김명수,김춘배,차병호,박기창,권상옥,신계철,이혜용,강성준,차봉석 한국보건의료인국가시험원 2004 보건의료교육평가 Vol.1 No.1

Korean Medical Licensing Examination(KMLE) 2002 focused on evaluation of the integrative medical knowledge such as primary clinical care or problem-solving competence. We analyzed the correlation among the year-wise student academic scores(grade score), trial examination scores and KMLE score by correlation analysis and multiple regression method. Four times of trial examination were taken in 2001, which were composed according to the principles of KMLE. Trial examination scores were significantly correlated with student grade scores (p(0.05). KMLE score also correlated with student grade score a nd trial examination score. The grade score at senior had higher correlation coefficient than the grade score at junior in correlation analysis. In multiple regressions, grade score at senior and mean score of trial examinatio n score were significant variants affecting KMLE score. Based on this result, regression formula such as [KMLE score] = 110.596+21.449^*[6th grade score of student] + 0.577^*[mean of trial examination score] was established (R2=0.764, p<0.001). Our results show that the trial examination is useful evaluation tool for final assessment of medical achievements. Also a trial examination is used as a reference data for student guidance and control in preparing for KMLE.