우리나라의 국제회의 및 컨벤션산업 현황과 육성방안에 관한 연구

이현재 김혁수 청주대학교 경영경제연구소 2008 경영경제연구 Vol.31 No.1

본 논문은 세계의 국제회의산업, 컨벤션산업, 및 MICE산업의 현황을 파악하고 이를 바탕으로 이 부문과 관련된 우리나라 산업의 육성방안에 대해 분석하였다. 분석결과에 의하면 국제회의 참가자들은 장기간 체재하는 경우 회의기간 중 또는 그 전후에 국내관광과 쇼핑 등을 함으로써 일반관광객에 비해 많은 소비를 하므로 교통․항공․숙박․유흥업 등 관광관련 사업의 발전에도 크게 기여하는 것으로 나타났다. 따라서 국제회의 유치 및 개최관련 정부의 지원정책 확대, 회의 유치를 위한 홍보 마케팅 지원, 회의 주재 단체 및 국제회의 기획업체 지원 강화, 및 국제기구 진출 활성화 등의 정책이 필요한 것으로 판단된다. The paper is basically designed to evaluate meeting industry, convention industry, and MICE industry based on a current trend in the world markets. The following promoting devices could be considered as a police instrument in order to upbring these industries in Korea. That is, extending government aid to build up an invitational system, Increasing P & R opportunities and supporting a marketing procedure, increasing support for a hosting facility, and making inroads into the international organization.

교내 지하수의 수질 현황 조사

현재혁,조미영 忠南大學校 環境問題硏究所 1999 環境硏究 Vol.17 No.-

Groundwater in Chungnam National University was analyzed forty four terms (except THMs) to evaluate groundwater contamination. In case of microbiological contaminants, the concentrations were found less than those in regulation. Aesthetic contaminants showed same results. Inorganic contaminants such as fluoride and nitrate were found few Organic contaminants did not exist in groundwater at all. Consequently, all groundwater in campus can be regarded as satisfying the drinking water criteria. However, to maintain safe and pleasant groundwater, continuous monitoring should be performed on a regular base.

브러시리스 직류 전동기의 센서리스 고속 특성 개선

송명현,박규남,우혁재 順天大學校 1998 論文集 Vol.17 No.1

This study applies sensorless strategy that is based on detecting of terminal voltages for sensing the rotor position in real time. And, by providing high PWM frequency, a current ripple and a torque pulsation are removed. Also, and accuracy of position detection at high speed are improved and a high speed operation range is expanded. The sensorless driving system is implemented with an IPM module and 87C196MC one-chip microcontroller. For confirming the validity of the proposed methods. experimental results from a prototype motor of rating 300W have shown. From the results of experiment, the Performance characteristics of high speed operation for permanent magnet brushless DC motor (BLDCM) driving systems are improved.

Geocrete와 규산액을 이용한 매립지 사면 침출수 누출제어

조재범,현재혁,나진성,김자영 충남대학교 환경문제연구소 2000 環境硏究 Vol.18 No.-

There are two strategies to cope with the troubles in landfill site after closure. The first method is active in a way that the wastes are dug up and the recyclable materials are reutilized, meanwhile the materials not recyclable are incinerated in order to minimize the volume of residues to be disposed of. The second method is rather passive and defensive in a way that the source of contamination, that is, buried wastes are not treated. Instead, the transport of leaking leachate and gases generated from the wastes are intercepted and controlled. In the study, as a passive way, the efficient leachate blocking process will be investigated, and how well geocrete and soluble sodium silicate can be utilized as a substitute to controls leachate leaking from landfill sidewall. In case of compression test, the strength of mixture ( I ) and (Ⅱ), even after 7 days' curing were higher than the criteria threshold (5 kg/cm2). Soaking in the acrid for 4 days and 7 days respectively, the compressive strength of the specimens reduced seriously. The toxicity of geocrete is not detected through the bioassay test, once it is mixed with sodium silicate and the complex is formed. The hydraulic conductivity of the mixtures even after 7 days' curing satisfied the threshold limit (1.0×10-7cm/s).

GMAHN 환경에 적응하는 에러 복구기능을 이용한 AODV 라우팅 프로토콜

정찬혁,오세덕,배진승,이기원,장양근,이광배,김현욱,유충렬,하재승 明知大學校 産業技術硏究所 2006 産業技術硏究所論文集 Vol.25 No.-

Mobile nodes in ad hoc mobile networks typically communicate over wireless channels and are capable of movement. These are networks that support multihop communication and can be formed on a temporary basis. This paper proposes a solution that allows mobile nodes to access the wired Internet and to roam from base station to base station. And we also develop the efficient method that adapts in Global MANET which can be changed over time. It is observed that we can reduce not only error detection time but also network load, thus increasing the data reception rate in Global MANET Environment.

레이온회사 퇴직근로자에서 이황화탄소에 의한 건강영향평가 : 직업병 인정여부에 따른 자각증상과 관련 요인 Subjective Symptoms and Related Factors According to Compensation for CS_2 Poisoning

이경재,김주자,최현림,양길승,김호,임상혁,이윤근 大韓産業醫學會 2003 대한직업환경의학회지 Vol.15 No.2

목적: 이 연구는 이황화탄소 취급 사업장에서 근무한 경력이 있는 퇴직 근로자들을 대상으로 이황화탄소에 의한 건강영향을 조사함으로써, 이황화탄소 노출 후의 건강영향 파악 및 이황화탄소 노출 근로자에 대한 건강관리 기준 마련 등에 중요한 기초자료를 제공하고자 하였다. 방법: 이 연구는 우리나라 모 레이온회사에 근무한 경력이 있는 퇴직 근로자 중에서 1998년 12월까지 직업병 여부를 확인하기 위해 건강진단을 신청한 1,702명 중에서 이미 사망한 40명을 제외한 1,662명을 대상으로 하여 이 연구 목적에 대한 설명문을 우편으로 발송하여 참여 의사를 밝힌 258명을 면접대상으로 하여 최종적으로 177명을 분석 대상으로 하였다. 결과: 연구대상자는 남자가 147명, 여자가 30명이었고, 평균 연령은 55.4세이고 입사시 연령은 29.1세였다. 근무부서별로는 고폭로부서에 근무한 군이 156명으로 88%를 차지하였으며, 인정받은 군이 103명(58.2%), 받지 못한 군이 74명(41.2%)이었다. 평균 총폭로지수는 38.96(±31.18)이었고, 인정받은 군에서 받지 못한 군 보다 유의하게 높았고 (p=0.000). 고폭로부서군에서 저폭로부서군보다 높게 나타났다(p=0.000). 퇴사전후 시간에 따른 호소 증상들을 분석한 결과, 퇴사전후 시간 흐름에 따라 호소하는 증상들이 차이는 있지만 호소하는 증상들이 퇴사전과 퇴사후 5년 이내에 비해 퇴사후 5~10년인 경우에는 인정받은 군과 받지 못한 군 간에 유의한 차이를 보이는 호소 증상들이 적어지는 경향을 보였다. 그러나 퇴사 10년 이상인 경우에는 퇴사후 5~10년 이내에 비해 오히려 호소하는 증상들은 많아진 반면, 인정받은 군보다 받지 못한 군에서 유의하게 높았다. 따라서 이는 퇴사후 10년 이상이 되면 그 이전 기간에 비해서 호소하는 증상들은 직업병 인정에 올바른 영향을 미치지 않을 수도 있다고 생각되고 이러한 결과에 영향을 미칠 수 있는 여러 가지 요인들을 생각해 볼 필요가 있다고 생각된다. 인정받은 군에 대해서 직업병 인정시점을 기준으로 인정전후에 호소 증상의 변화를 비교한 결과, 대부분 직업병 인정전에 비해 인정후에 호소하는 증상이 감소하는 경향을 보이고 있어 직업병 인정후에 의료기관으로부터 증상관리가 이루어지는 것이 증상호소를 줄이는 데 기여한 것으로 생각되며 이밖에도 직업병 인정으로 인한 심리적인 보상도 영향을 미칠 수 있을 것으로 생각된다. 직업병 인정여부에 영향을 주는 요인에 관하여 분석한 결과, 총폭로지수와 퇴사후 최종 건강진단을 받을 때까지의 시기가 유의한 요인으로 나타났으며, 퇴사후 직업병 인정을 받을 때까지의 시간에 대한 Cox의 비례위험 회귀분석을 한 결과, 총폭로지수와 입사연령, 고폭로부서의 근무여부가 의미있는 요인으로 나타났다. 결론: 이 연구를 통하여 이황화탄소 취급 사업장에서 근무한 퇴직 근로자들을 대상으로 직업병 인정에 따른 호소 증상을 분석하고 직업병 인정에 영향을 주는 요인을 분석해 봄으로써 이황화탄소 노출에 의한 건강영향을 파악하고 폭로 이후의 증상변화를 예측 관리할 수 있는 자료를 마련하고자 하였으며 이는 이황화탄소 노출 근로자들에 대한 건강관리에 기초자료로 의미를 가질 것으로 생각된다. Objectives: To investigate the chronological subjective symptoms and related factors in exworkers who were occupationally exposed to Carbon disulfide. Methods: One hundred and seventy-seven subjects(147 males and 30 females) were randomly selected among ex-workers and interviewed by well trained doctors, who filled out a structured questionnaire developed by authors on the subjective symptoms. The questionnaire was composed of symptoms in the head and neck, and those of the neuro-psychological, respiratory, endocrine, musculoskeletal, and reproductive systems. Other factors such as general and occupational characteristics including work department, work duration, duration since cessation of exposure, and compensation for occupational disease were also investigated. Results: The mean subject age was 55.4 years. The mean cumulative exposure index (CEI) was 38.96±31.18. CEI was significantly higher in the compensated group(47.61±32.51) than in the non-compensated group(26.81±24.75)(p=0.000). Symptom complaints were significantly higher in the compensated group in all organ systems, and their incidence increased gradually until 10 years after cessation of work, and then decreased. The mean duration for cessation of exposure at the time of compensation was 10.97 years. The significantly different factors between the compensated group and the non-compensated group were total cumulative exposure index and the time interval between the cessation of work and the time of compensation. Conclusion: Our findings suggest that total cumulative exposure index and the time interval between the cessation of work and the time of compensation may be important factors affecting the compensation for occupational disease. Therefore, further studies will be necessary.

ELASTIC BAND 운동과 스트레칭 운동이 노인 당뇨환자의 혈당, 중성지질 및 근지구력에 미치는 영향

조재혁,이승훈,진종현 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

The purpose of this study s to find the effects of elastic band exercise and stretching exercise on glucose level, triglyceride and muscle endurance in elderly patient with NDDM. The subjects consisted of elderly patient(n=20) with NlDDM dstributed into resstance training group(n=10) and stretching exercise group(n=10). Both groups participated in resstance training and stretching exercise program respectively, 3times per wear during 9weeks. Repeated measures ANOVA was used for statstical analysis. The results of this study are following. 1. Glucose level of both groups decreased significantly after 9 weeks training. There was significant differences between groups in FBS and no significant differences between groups in PP2 after training. There was significant differences in PP2 at time and no significant differences in FBS at times. 2. There was significant decreases in triglyceride level of both groups after 9 weeks training, however no significant differences showed between goups. There was no significant differences between groups at time. 3. Muscle endurance of both groups increased after 9weeks training, however no significant differences showed between groups. There was no significant differences between groups at time.

Column Test 方式을 利用한 安定化된 埋立地 廢棄物層의 吸着能 調査硏究

이상현,현재혁 충남대학교 공업교육연구소 1994 論文集 Vol.17 No.1

This study is to investigate the adsorption capacity of the wastes obtained from three different depth and quality in Nanji landfill site. Nanji landfill site was the biggest site until Kimpo sanitary landfill site emerged in Seoul Metropolitan Area. It had been landfilled for 14 years from the year of 1978 to 1992. Continuous experiments were performed employing synthetic heavy metal-bearing solution and the modified column apparatus of ASTM standards. Each waste sample was analyzed to find out the physicochemical properties such as moisture contents, ignition ashes and combustible components in wet and dry bases. The quantitative analysis of metals was determined by use of ICP (inductively Coupled Plasma Emission Spectroscopy). From the study, following conclusions were obtained : 1) Physicochemical properties of soils in landfill site were moisture contents 20.8 - 52.4 %, ignition ashes 44.6 - 75.4 % and combustible components 2.5 - 3.7%, respectively. 2) Adsorptivity of soils was sely related to the organic matter decomposition and the formation of humic substances in the land-disposed wastes. 3) After 25 days, breakthrough point occurred in any soil column except that for soil type 3.

치성낭종으로부터 유래된 편평상피세포암종 : Report of a Case & Review of Literatures

권혁진,현재훈,박형국,김용각 大韓顎顔面成形再建外科學會 1997 Maxillofacial Plastic Reconstructive Surgery Vol.19 No.2

Odontogenic cysts are relatively common pathologic lesions found in the oral and perioral structures, but the case of squamous cell carcinoma arising from those cysts are very uncommon. After first reported of that case in 1889 by Herman, Schwimmer collected 56 cases of previously reported squamous cell carcinoma arising in residual odontogenic cyst during about past one century. More than 60% of cases of carcinoma developing in odontogenic cysts arising in inflammatory periapical or residual cyst, and these tumors are usually well-differentiated with relatively good prognosis, and often are diagnosed as benign lesion in radiographic or clinical examination, therefore definitive diagnosis must be made by histologic examintation. We report a case and review the literatures, in our case, 78-year old woman were clinically and radiographically diagnosed as residual odontogenic cyst. But in histologic examination after enucleation of lesion, mass of squamous cell carinoma were observed, but in other area, typical cyst wall and lining epithelium were observed. And in some area, carcinoma in situ and invading squamous cell carcinoma into the lining epithlium were also observed.

정상교합자와 골격성 Ⅲ급 부정교합자의 저작운동형태의 비교

성기혁,성재현 대한치과교정학회 1997 대한치과교정학회지 Vol.27 No.5

정상교합자와 골격성 Ⅲ급 부정교합자의 저작운동형태를 비교연구하기위해서 30명의 정상교합자와 20명의 골격성Ⅲ급 부정교합자를 대상으로 츄잉검을 사용하고 BioPAK system을 이용하여 전두면상에서 저작운동을 기록, 분석하였다. 각 개체마다 대표하는 저작경로를 정하여 저작폭경, 개구거리, 개구각, 폐구각, 최대개구속도, 최대폐구속도를 알아보았다. 또 저작경로의 형태에 따라 특징적인 7가지 패턴으로 분류하여 다음의 결과를 얻었다. 1. 정상교합자군에 비해 골격성Ⅲ급 부정교합자군에서는 좀 더 다양하고 수직적인 저작양상을 나타내었다. 2. 저작폭경의 비교에서는 골격성Ⅲ급 부정교합자군이 정상교합자군에 비해 더 좁게 나타났다(P<0.01). 3. 개구거리에서는 골격성Ⅲ급 부정교합자군이 정상교합자군에 비해 더 작게 나타났으나 통계학적으로 유의성은 없었다(P>0.05). 4. 개구각과 폐구각에서는 골격성Ⅲ급 부정교합자군에서 정상교합자군보다 더욱 예각으로 나타났다(P<0.01). 5. 최대개구속도, 최대폐구속도에서는 정상교합자군에 비해 골격성Ⅲ급 부정교합자군에서 느리게 나타났으나 통계학적으로 유의성은 없었다(P>0.05). 6. 저작운동형태에 따른 분류에서 정상교합자군에서는 Type Ⅱ가 73.4%로 가장 많은 비율을 차지하였으나 골격성 Ⅲ급 부정교합자군에서는 Type Ⅲ가 35.0%, Type Ⅱ가 30.0%로 많은 비율을 차지하였다. 7. 저작운동형태에 따른 분류에서 골격성 Ⅲ급 부정교합자군에서는 Type Ⅳ(chopping type)가 25.0%로 정상교합자군 3.3%에 비해 많은 비율을 차지하였다. A comparative study was made on the chewing movements of normal occlusion and skeletal classⅢ malocclusion. Thirty normal occlusion subjects and twenty skeletal classⅢ malocclusion patients were given chewing gums for the study ; using BioPAK system, the chewing movement on the frontal plane was recorded and analyzed. With a typical chewing path chosen representing each subject, chewing width, opening distance, opening and closing angle, maximum opening and closing velocities were observed. Seven characteristic patterns were classified based on the types of chewing paths. The followings are the results: 1. Compared with the normal occlusion group, the skeletal classⅢ malocclusion group showed more varied and vertical chewing patterns. 2. In comparision of chewing widths, skeletal classⅢ malocclusion group showed narrower path than the normal occlusion group(P<0.01). 3. In opening distance, skeletal classⅢ malocclusion group appeared shorter than the normal occlusion group without statistical significance(P>0.05). 4. In opening and closing angles, skeletal classⅢ malocclusion group showed more acute angles than the normal occlusion group(P<0.01). 5. In maximum opening and closing velocities, skeletal classⅢ malocclusion group was slower than the normal occlusion group but with no statistical significance(P>0.05). 6. In the classification of chewing movement pattern, the normal occlusion group had TypeⅡ as the highest rate at 73.4%; in skeletal classⅢ malocclusion group, the highest rate was TypeⅢ at 35.0%, followed by TypeⅡ at 30.0%. 7. In the classification of chewing movement pattern, Type IV(chopping type) of skeletal classⅢ malocclusion group showed a higher rate with 25.0% over 3.3% of normal occlusion group.