부산, 울산, 경남지역 직업병감시체계에서 나타난 수지진동증후근의 역학적 특성

최영희,유철인,이지호,이충렬,이헌,김영욱,채창호,고상백,김은아,이유진,김양호 大韓産業醫學會 2003 대한직업환경의학회지 Vol.15 No.3

목적: 국내에서도 국소진동에 의한 수지진동증후군이 다수 있을 것으로 추정하나 최근에 이에 대한 보고가 적어 부·울·경 직업병감시체계를 통하여 수지진동증후군에 대한 환례를 수집하여 이의 역학적 특성을 밝히고자 본 연구를 실시하였다. 방법: 2001년 44월부터 2002년 12월까지 부산, 울산, 경남지역에 있는 종합병원 9곳을 통하여 특수 건강진단과 산업의학과 외래를 방문한 근로자를 대상으로 진동폭로에 대한 설문조사를 실시하고 이들중에서 수지진동으로 인한 증상을 호소하는 근로자는 이학적 검사와 Stockholm workshop scale을 이용하여 수지진동증후군이 있는지 평가하였다. 결과: 남자 188명, 여자 4명 등 총 192례의 수진진동증후군이 의심되는 환례를 수집하였으며, 업종별로는 조선업에 종사하는 근로자들이 가장 많았다. 국소진동의 주된 폭로원은 그라인더가 가장 많았으며, 혈관장해로 인한 증상보다 감각신경성 장해로 인한 증상을 많이 호소하였다. 결론: 전국적으로 조선업종의 그라인더 사용자를 중심으로 많은 수의 수지진동증후군의 환자가 있을 것으로 추정되며, 이들에 대한 예방대책을 마련하기 위하여 전국규모의 정확한 유병률 조사 및 실태파악이 필요한 것으로 판단된다. Objects: The objectives of this study were to estimate the epidemiologic characteristics of hand-arm vibration syndrome (HAVS) due to occupational exposure of hand transmitted vibration and to identify the occupations and industries where such exposures arises, and the main sources of exposure. Methods: In April 2001 the Busan, Ulsan, and Kyung-Nam Province occupational disease surveillance system was established to measure the incidence and prevalence of work-relatd HAVS and other occipational diseases in these Korean provinces. Occupational physicians of nine hospitals in Busan, Ulsan, and Kyung-nam Province were involved in this project between April 2001 and November 2002. Physicians collected information through questionnaires and interviews. Information gathered included age, occupation, types of vibration tools used and presence of subkective symptoms such as vibration-induced white finger (VWF), numbness and tingling. Results: A total 192 cases were reported with 188 males and 4 females. The shipbuilding industry was the most common type of industry and grinders were the most common source of exposire. Symptoms of neurological disorder were more common than those of vascular disprder. Conclusions: The authors concluded that exposure to hand transmitted vibration is common and that HAVS is one of the most common occupational diseases in Korea. However, the range and extent of hand transmitted vibration and the overall prevalence of HAVS in Korea is still unknown. More extensive research on this syndrome in order to priorite necessary preventive measures is required.

대구지역 일부 고등학생들의 건강관련 위험행동조사

김성희,이충원,전영호 대한보건협회 2000 대한보건연구 Vol.26 No.1

This survey measured the levels of risk behaviors in six categories in high school students in Taegu, to collect basic data to develop school health policy and health promotion programs. The target population was high school students in Taegu. Out of 136,973 students, 1,853 were sampled through stratification of gender, class and grade. We used a 1999 version of the Youth Risk Behavior Survey of CDC, which was translated. Many high school students engaged in behaviors that will increase the likelihood of death or illness. Vocational high school students and male students were significantly more likely than general high sachool and female students respectively, to have risk behaviors in most categories except, physical inactivity. First graders were significantly more likely to have violence-related risk behaviors(<0.05) and second graders were significantly more likely to have depression (<0.05). Third graders were significantly more likely to be physically inactive(<0.01). Almost 70% of students rarely or never wore seat belt. Lack of safety practice was prevalent and significantly undiffered by gender, class and grade. 62.3% had recently drank alcohol, 31.8% had ever tried cigarrette smoking, 67.7% had unhealthy diets behaviors, 62.5% had a low level of physical activity and 5.4% had had sexual intercourse. Conclusion; A High percentage of high school students engaged in risk behaviors and some subgroups were exposed to significantly more risks. Particularly, vocational high school and male students were high risk subgroups.

90年代 觀光事業의 經營 環境과 社會變化

金忠鎬 京畿大學校 관광개발연구소 1988 觀光硏究論集 Vol.5 No.-

As our economic society has been changed by the internal and the external factors, this change is expected to continue hereafter. The change of economic society is considered to be determined by the behavior, consciousness and the value criteria of the people who is the subject of the economic society. As a result of the nationwide effort to realize the industrialization like western countries, the flow of production, income and consumption has advanced through the high economic growth in 1970s. But our economic society faces the new aspect of the trade unbalance and the regulation of import by developed countries. Our society is now in the step left 13 years to 21st century, to grope the new guidelines. In establishing the new economic society towarding 90s, the realty of the economic society must be recognized right and the exact strategies must be presented to cope with the structural changes in our society. In order to build the new economic society towarding 1990s, the change of social behavior such as maturity from growth, choice from uniformity, competition from coordination, diversity from standardization, synthesis from singleness and opening from closing, must be anticipated and the tourism management environment also must be reorganized.

폐결핵 초치료 환자들의 치료 결과에 영향을 주는 요인

김경순,조영하,전진호,조은희,은충기 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.3

Objectives : To figure out the factors related to the failure of primary pulmonary tuberculosis(Tb) treatment and to enhance the efficiency of the treatment. Methods and Materials : The subjects were 137 Tb patients composed of the two groups; 44 failure cases and 93 success cases who admitted in National Masan Tuberculosis Hospital during 2001. The failure means no improvement with the standard short term regimen of INH and RFP. Patients' informations were gathered through medical records and face-to-face interview survey, and, the data were analyzed with SPSS(ver 10.0). Results : Mean age of the subjects were 47.6 years. Most cases were diagnosed at clinics or hospitals at first, due to the symptoms. No difference in smoking and alcohol habits between the two groups. The cases who got the informations about the whole process of treatment, and following regular regimens were more in the success group. The proportion of multi-drug resistance to the regular primary Tb regimen was higher in the failure group 8 cases out of 25 detectable failure cases. 0 case among 46 successful cases. And the four regular regimen(INH, RFP, EMB, PZA) was popular type of the resistance. In chest X-ray, multiply involved lesion(≥ two lobes), atelectasis and pleurisy were more frequent in the failure group. Conclusion : The major factors that enhance the efficiency of Tb treatment were the informations and compliance. Enough explanation about the whole process would be essential during Tb treatment, and, in case of MDR-Tb, susceptible regimen and surgical therapy should be considered.

單純slab橋의 動的解析에 관한 硏究

김기대,함충호 大邱大學校 科學技術硏究所 1998 科學技術硏究 Vol.5 No.4

In this paper, the analytical and experimental treatments of dynamic behavior of beams with moving loads are shown by using mode superposition technique. Therefore, this study analyzes dynamic behaviors of simply supported slab bridge subjected to vehicle loads of constant velocities. The purposes of this study are to propose the proper dynamic analysis algorithm and the impact factors considering the above numerical results. The results by the proposed method are compared with those of field vehicle tests. As a result, it is found that the proposed procedure could provide the accurate estimation of dynamic analysis of bridge, and appeared applicable to real structures such as multispan, nonuniform beams. Moreover, the impact factors specified in the design codes seem to be higher value than the results of the experiment.

역상 액체 크로마토그래피에 의한 금속-N-Benzylisonitrosoacetylacetone Imine 킬레이트의 분리에 관한 연구

金仁煥,李忠壎,李萬浩 대구대학교 기초과학연구소 1989 基礎科學硏究 Vol.6 No.-

Liquid chromatographic behavior of Pd(Ⅱ) and Co(Ⅲ) in N-benzylisonitrosoacetylacetone imine(HIAA-NBz) chelates were investigated by reversed phase high performance Liquid chromatography (HPLC) on Novapak C_(18) and μ-Bondapak C_(18) Columns. The optimum conditions for the separation of the above metal chelates with respect to column, flow rate, sample solvent and mobile phase strength were determined. The metal ions chelated with HIAA-NBz were successfully separated on Novapak C_(18) Column using acetonitrile/methanol/water/(55/10/35) as mobile phase. The capacity factors(k') of Pd(Ⅱ), Co(Ⅲ)-HIAA-NBz chelates were measured as a function of the mobile phase composition. It was found that metal HIAA-NBz chelates were eluted properly in the acceptable range of capacity factor values(0≤log k'≤1) The Iinear calibration curves were obtained in the concentration range of 0∼20㎍/ml of Co(Ⅲ) and 0∼30㎍/ml of Pd(Ⅱ). The recovery and the coefficient of variation of this proposed method were obtained in the range of 101.4∼102.7% and 3.0∼6.7% respectively.

충격내압을 받는 두꺼운 원통의 비선형 동적해석

金忠浩 慶星大學校 1992 論文集 Vol.13 No.3

Dynamic loading of structures often causes a over-stresses, deviation of the elastic range and geometrical large deflection. Thus, in many case, material and geometrical nonlinear effects should be considered in dynamic analysis. In this research, material nonlinear behavior were considered by adopting elastoviscoplastic material represented by 1-D. rheological model. Geometrical nonlinear effects were considered with modifing the straindisplacement matrix by adding to the Green-Langrange's nonlinear strain terms, In appling the thick sylinder subjected to impulsive internal pressure, the results were reasonable in practice.

만성 요통 환자의 심리사회적 특성

김용민,원중희,최의성,서중배,이호승,허윤무 충북대학교 의학연구소 2001 忠北醫大學術誌 Vol.11 No.2

연구목적: 만성 요통 환자의 많은 수가 직업 등 주변 환경과 심리 상태의 영향을 받는 것으로 추정되나 그 연관성은 아직 논란이 많다. 본 연구에서는 설문 조사를 통하여 만성 요통 환자의 심리사회적 특성을 알아보고자 하였다. 대상 및 방법. 1997년 7월부터 1998년 12월까지 6주 이상 지속된 만성 요통으로 본원 정형외과 외래를 내원한 환자들 중 기질적 원인이 불명확한 62명의 환자들에서 직업, 유발요인, 치료 등 요통 관련 요소 설문과 Minnesota Multiphasic Personal Inventory (MMPI)를 실시하였다. 요통 관련 사항에는 통증의 기간, 정도, 통증이 유발 또는 심해지는 자세, 그리고 본인이 생각하는 요통의 원인 등을 포함하였다. MMPI는 전체 평균을 이용한 방법과 two-code 방법을 이용하여 평가하였다. 결과: 만성 요통환자의 직업 상 실내에서 앉아 일하는 직업이 가장 맡았으며 일정한 자세를 오래 유지하며 앉거나 서 있는 경우 증상이 악화되는 것으로 기술되었다. MMPI에서는 건강 염려증, 우울증, 히스테리의 세 척도의 평균이 55이상으로 상승되어 있었다. Two-code 방법에서는 92% (46/50)의 환자에서 위 세 척도 중 적어도 하나 이상 상승되어 있었다. 결론: 만성 요통 환자들에서 일상 생활의 자세와 직업이 요통의 발생 및 악화에 영향이 있을 것으로 보여졌다. MMPI를 통한 심리 인성 검사 상 건강 염려증, 우울증, 히스테리의 성향이 증가되어 있어 요통의 발생과 만성화에 심리적 요소가 영향을 미치는 것으로 보여졌다. 사회경제학적, 정신심리학적 요인이 만성 요통에 미치는 영향의 규명을 위한 다양하고 심도 있는 연구가 필요하다고 생각된다. Purpose : Socioeconomic and psychologic factors seem to affect incidence, severity, and chronicity of low back pain. Purpose of this study is to survey socioeconomic factors and document psychoneurotic traits via MMPI in chronic low back pain patients. Materials and Methods : From July 1997 to December 1998, questionnaire about low back pain-related factors such as duration, severity, posture, occupation etc. and MMPI were given to patients who visited our department for chronic low back pain()6weeks). 62 patients completed, and 50 of them completed MMPI. The answers were analyzed. MMPI scores were evaluated in mean±SD method and two-code method. Results : Sedentary workers were the most common. And symptoms were told to be elicited by long sitting or standing posture(job) . Hs, D, Hy scales of MMPI, which are know as "neurotic triad by two-code method was observed in 92% (46/50) . Conclusion : It seemed that job and posture had Important role in chronic low back pain. And, it seemed that chronic low back pain patients had some psychoneurotic traits especially in hypochondriasis, depression, and hysteria. More investigations to document the influences of socioeconomic and psychoneurotic factors in chronic low back pain seems to be necessary.

Directed Diffusion을 이용한 등산객 경로추적 시스템 설계 및 성능 분석

김광호,이구연,정충교 江原大學校 産業技術硏究所 2007 産業技術硏究 Vol.27 No.B

In this paper, we propose a design of the implementation for a search and rescue system for mountain climbers and evaluate the performance of the system. Search and rescues of people in emergency situations in mountain areas have been difficult due to lack of information about their location, In the proposed design, several small and commonly-available RF-based sensors, some amount of storage and processing devices are used. Infestations offer geographically intermittent coverage at high speeds. The proposed mountain climber tracking system use the directed diffusion scheme combined with infostation system. We also analyze the performance of the proposed system with NS-2 simulation package. From the performance analysis results, we expect that the proposed system will be very useful to early detect climbers' locations in emergency situations in Korea mountain areas.

호텔事業計劃을 爲한 段階的 모델設定 : 設計에서 開業段階까지

金忠鎬 京畿大學校 附設 觀光開發硏究所 1985 觀光硏究論集 Vol.2 No.-

The hotel business in modern industry has become a rising industry; today the modern hotel is no longer defined as a mere facility only to provide accommodations, food and beverage for its guests since it has become a joint enterprise of a given society and its customers are not limited to a few privileged people in the past. Though there still remain a fatal household nature in some parts of hotel business, it is now growing as an industry with commodities such as rooms, food and beverage, and service based on the ability of management and facilities. In modern industry the hotel business has come to play a very important role, representing a country since it not only makes great contribution towards the earing of foreign exchange, the security of revenue. It further contributes to the world peace, national and regional land development, and the promotion of people-to-people diplomacy. Thus the present worldwide tourism boom through the rapidly developing mechanical civilization has made more and more foreign tourists visit Korea, bringing about the demand for hotel accommodations in both cities and resort areas. But since in Korea there have been no experts in the construction of hotel and its management, and no concrete suggestions in planning the project and in examining the marketability and its long term plan, the domestic economic circles tend to rely on foreign technology and capital. As a result it is evident that in recent years more foreign hotels have began to advance into Korea in the form of a joint investment or technical introduction, and accordingly the whole operation of hotel ranging from the process of hotel construction to its management sums to be controlled by foreigners. This reality actually runs counter to the development of Korea's travel industry, resulting in bringing forth the backward flow of the in-flow of foreign. It also invites unemployment in the existing domestic man power, In the light of the present sistuation and based on its long research experiences at home and abroad in the field of hotel business, this research institution in this study is primarily aimed to suggest the concrete direction in the construction of hotel and its systematized operation and management best fit for Korea's situation, thereby contributing to the development of Korea's hotel business circles as a whole. Comparing with foreign hotels growing as a modern industry, I have in this study studied the marketability, the process of hotel construction, and the rational management after its opening, and analyzed all the equipments and materials necessary before its opening, and worked out a basic model plan.