고분자 방향족 유기화합물이 포함된 폐수의 전기화학적 처리

강태구,김희정,윤영재,노성희,김선일 한국공업화학회 2002 한국공업화학회 연구논문 초록집 Vol.2002 No.0

탄소 흡착법, 용매추출법, 화학적 산화법 등 여러 산업폐수 처리기술들이 개발되어 이용되고 있으나 이중 전기화학적 산화반응이 주목을 받고 있다. 이 연구는 고분자 방향족 화합물이 포함된 폐수를 전기분해 반응을 통한 직접산화 반응과 간접산화 반응으로 처리하고자 한 것이다. 두 개의 서로 다른 전극재질을 선정하여, DSA 전극은 직접산화 반응을 수행하고 carbon felt cathode는 간접산화 반응을 수행하였다. DSA 전극은 전기화학적으로 안정하여 phenol의 산화반응에 효율적이다. 반면 이 연구에서의 naphthalene과 anthraquinon sulphonic acid를 포함한 폐수는 효율이 낮았으며 오히려 carbon felt cathode를 적용한 경우가 효율이 졸았다. 강력한 산화제인 H₂O₂를 사용하면 음극에서 산소의 환원반응으로 인해 COD가 크게 감소하였고 Fe(ll) 이온을 폐수에 첨가해주면 분해반응이 촉진되었다. DSA 전극에 비해 ca「bon felt cathode는 상대적으로 값이 저렴하므로 앞으로 연구를 통하여 최적의 조건을 찾을 수 있을 것으로 기대된다.

Comparison of Anesthetic Responses Induced by MZT and XZT Combinations at General Anesthesia for Laparoscopic Salpingectomy in Rearing Female Asiatic Black Bears (Ursus thibetanus)

강태구,김일화,이준암,박소영,황대연,강현구 한국임상수의학회 2019 한국임상수의학회지 Vol.36 No.6

It is important to identify the most suitable anesthetic agent that has minimal side effects to be able to control and perform surgeries on bears. In this study, we examined and compared the induction and recovery times as well as the physiological changes occurring during anesthesia induced by medetomidine-zolazepam/tiletamine (MZT) and xylazine-zolazepam/tiletamine (XZT) at general anesthesia for laparoscopic salpingectomy in 326 female Asiatic black bears. The body temperature, heart rate, respiratory rate, and levels of PaO2 and EtCO2 were the physiological changes measured during surgical procedures in female bears after anesthesia. In addition, the levels of pO2, pCO2, and sO2 were measured using a portable blood gas analyzer. To induce recovery from anesthesia, bears anesthetized with MZT were intravenously administered atipamezole and bears anesthetized with XZT were intravenously administered yohimbine. The combination MZT, at dosages of 0.019 ± 0.001 mg/kg for medetomidine and 1.4 ± 0.1 mg/kg for ZT, or the combination XZT, at dosages of 2.0 ± 0.1 mg/kg for xylazine and 3.0 ± 0.1 mg/kg for ZT, proved to be reliable and effective in anesthetizing Asiatic black bears for a 40-min handling period for routine clinical procedures. The average anesthesia induction times were 16.5 ± 0.95 min for the bears in the MZT group and 12.0 ± 0.44 min for those in the XZT group. A significant difference was noted between the two drugs (P < 0.001) in terms of the average anesthesia induction time. The anesthesia induction time was shorter for bears with lower body weights than those with higher body weights (P < 0.05). The recovery time of MZT was significantly faster than that of XZT (11.3 ± 0.45 min vs. 18.5 ± 0.83 min) (P < .001). The bears anesthetized with MZT exhibited lower cardiopulmonary suppression than those anesthetized with XZT (P < 0.05). The body temperatures and EtCO2 o f bears in t he M ZT group were significantly lower than those in the XZT group as time progressed after anesthesia (P < 0.05). The average pO2 before the bears were supplied with oxygen was 64.8 ± 3.7 mmHg, but it increased to 211.5 ± 42.5 mmHg afterwards (P < 0.001). In conclusion, our results indicate that bears anesthetized with MZT have longer anesthesia induction time, shorter recovery time, slower heart and respiratory rates, and lower body temperatures and EtCO2 than those anesthetized with XZT. These findings suggest that XZT is preferable to MZT, warranting further research on its uses and clinical responses in bears.

클라우드 기반 원격 교육시스템 도입 효과 요인에 관한 실증 연구: 사이버대학교 구축 성공사례 중심으로

강태구 한국융합학회 2020 한국융합학회논문지 Vol.11 No.11

With constant relaxation of regulations by the government in the 4th industrial innovation era, it has brought huge changes to the education environment as it has created solutions to hindrance factors against introduction of the cloud. Universities are getting more interested in the introduction of the cloud Computing but they still remain at the level of recognition diffusion and creating ambience. The study has analyzed empirical factors of the effect of introduction of the successful case “K Cyber University’s Construction of Cloud-Based Remote Education System” through the previous studies on trait factors affecting the introduction of the cloud computing and the analysis of factors in terms of expandability, agility, compatibility, economic feasibility, security, stability and institutional support. Factors drawn through this are meaningful for empirical studies on presenting strategies and the directivity to introduce the cloud computing successfully. This study can be used as the background for further studies which will require various factors prior to introducing the cloud computing. 4차 산업혁명시대 정부의 꾸준한 법 규제 완화로 클라우드 도입 저해 요소들에 대한 해결 방안이 생기면서 교육환경에도 큰 변화를 가져 오고 있다. 대학에서도 클라우드 컴퓨팅 도입에 대한 관심은 점점 커져가고 있지만 인식 확산 및 분위기 조성 단계에 머무르는 수준이다. 본 연구는 클라우드 컴퓨팅 도입 효과에 영향을 미치는 요인 분석을 통해 확장성, 민첩성, 호환성, 경제성, 보안성, 안정성, 제도적 지원 요인을 “K사이버대학교의 클라우드 기반 원격 교육 시스템 구축” 성공사례의 도입효과에 대한 실증 요인을 분석하였다. 이를 통해 도출된 요인은 성공적인 클라우드 컴퓨팅 도입을 위한 전략 및 방향성 제시의 실증적인 연구의 의의가 있다. 향후 연구에서는 클라우드 컴퓨팅 도입 이전의 다양한 요인 분석에 대한 모델을 구체화 및 확대하여 실증적 요인을 근간으로 하는 연구의 배경으로 활용 될 수 있을 것이다.

플립러닝을 활용한 온라인 학습에서 중ž장년층 학습자의 반복학습에 따른 학습몰입과 흥미가 학습만족도에 미치는 영향

강태구,임구원 대한산업경영학회 2021 산업융합연구 Vol.19 No.3

4차 산업혁명 ‘인공지능 시대’를 맞이하여 ICT 기술의 발전은 온ž오프라인 교육환경에 다양한 영향을 미치고 있다. 온라인 교육의 대중화는 교육 패러다임을 변화시켜 학습자 중심의 서비스로 전환하여 새로운 교육 환경의 변화가 요구되는 시점에서 플립러닝에 대한 관심이 높아지고 있다. 특히 성인학습자의 경우 생애 전반에 걸쳐 보다 다양한 학습과정의 온라 인 학습 수요가 강하게 대두되고 있다. 본 연구는 K사이버대학교의 중ž장년층 온라인 학습자를 대상으로 플립러닝을 활용 한 반복학습이 학습 몰입과 학습 흥미가 학습 만족도에 미치는 영향의 관계검증과 구조관계에 어떻게 되는지 규명하고자 하였다. 이를 통해 플립러닝을 근간으로 한 학습 만족도를 위한 방향성 제시를 위한 연구에 의의가 있다. 향후 연구에서는 측정할 수 있는 다양한 요인 분석의 모델을 구체화하여 적용한다면 플립러닝을 근간으로 한 학습만족도를 더욱 극대화할 수 있는 연구에 활용될 수 있을 것이다. In the era of the 4th industrial revolution, the age of artificial intelligence, the development of ICT technology is having various effects on the online and offline educational environment. The universal access of online education changes the educational paradigm and converts it to a learner-centered service. At the time when a new educational environment is required to change, interest in flip learning is increasing. Even adult learner’s online learning needs is also shown very high. The purpose of this study was to investigate how repetitive learning activities through flip learning for middle-aged online learners of K-Cyber University has a relationship and structural relationship between the effects of learning immersion and learning interest on learning satisfaction. Through this study, there is significance in research to suggest direction for learning satisfaction based on flip learning. For further studies, if a model of analysis of various factors that can be measured is specified and applied, it can be used as a research background that can maximize learning satisfaction based on flip learning.

私立大學校 敎職員組織의 健康性에 關한 實證的 硏究

姜太九 漢陽大學校 大學院 院友會 1986 杏堂論集 Vol.2 No.-

상관값에 대한 코드의 특성과 System성능 분석에 관한 연구

강태구,심형관 청주대학교 산업과학연구소 1997 産業科學硏究 Vol.15 No.2

This paper is analyze the performance of optical asynchronous Code Division Multiple Access(CDMA) systems, When maximum value of correlation is bounded by 1 or 2. As the maximum value of correlation is bounded by 2, two code words overlap at one pulse position or at two pulse positions, We obtain the bit error probability for the probability distribution of interference patterns, Also, We can increase in number of mutiple access user at a fiber.

韓國 輸出企業의 製品 라이프·싸이클 戰略에 關한 硏究

姜太求 全南大學校企業經營硏究所 1982 産業經濟硏究 Vol.9 No.1

International Product Life Cycle (IPLC)postulate a four-phase international trade cycle for most products. In the first phase, US exports dominate the world market, while in the next three, producers from other developed countries become increasingly competitive; first in their market; then in the markets, and finally in the U.S market. The cycle may be repeated by succesive challenges from producers in less developed countries. In case of Koreas, lacking of market size, ready acceptance of innovations, R & D resources, and well developed international marketing information system, it becomes competitive only after maturing or declining stage of developed countries. But, no Korean Exporting Company's(KEC) own IPLC strategy has been developed untill recently. In this respect, a direction of IPLC strategy is deveioped in terms of following general characteristics of Korean exporting products as follows. 1) KEC can hardly develope a new exporting product and there are few, if any, for science and technology indices are relatively low. 2) Korean exporting products are so easily confronted with other nation's competitiveness that they enter into decline stage abruptly and lose comparative advantage because they are, in most cases, simillar to existing product in existing export market. 3) Due to domestic inflation and raised labour cost, price competitiveness is declining gradully and also various export marketing capabilities are not superior to those of competitor nation's. 4) Korean major exporting products will not greatly deviate from labour-intensive ones in the near future and comparative advantage of skilled-labour-intensive products will grow gradually. Due to these various reasons, KEC cannot use creative, positive marketing strategy and finally Korea IPLC forms a catching-up life cycle or re-life cycle. This present condition must be fully reflected in formulating a KEC's marketing strategy utilizing IPLC. General direction of KECs' marketing strategy by IPLC based on this ibea is as follows. ________________________________________________________________________________ stage of introduction growing maturing stage declining importing stage of stage of of Korea of Korea Korea Korea exporting exporting exporting exporting product product product product ________________________________________________________________________________ major technological complexity & growing increasing abrupt problems gap strength of burden of NICs reduction of competitor finance comptition sales volume nation marketing developed unstability countries' of final import consumer restriction wants ________________________________________________________________________________ major new financial supply production/ disinvestment activity technology management supply importing marketing ________________________________________________________________________________ advertising - middle man middle man/ final user/ middle man target final user middle man ________________________________________________________________________________ customer - middle class low-income least-income least-income local local local customer customer customer customer ________________________________________________________________________________ price - penetration competitive competitive price strategy price price price/price cutting cutting ________________________________________________________________________________ export - foreign foreign direct sale broker channel importer importer /foreign /direct importer sale ________________________________________________________________________________ market - penetration market market sale for share share share segmented expansion keeping market /market segmantation ________________________________________________________________________________ approach - low price low price low price lower price /quality /quality (vs.NICs) (vs.NICs) ________________________________________________________________________________ configuration - basic modified second basic generation /segmented ________________________________________________________________________________ required technological market market strategy reasonable major gap penetration share modification disinvestment strategy settlement expansion for PLC effective careful supply extention use of price selection market detour of strategy of export- segment import pormising restriction product accumulation of experlence effect ________________________________________________________________________________ This only represents KECs' general future direction of IPLC strategy. In this IPLC strategy formulation, each company must grasp the characteristics and PLC position of its product punctually, and this must be fully reflected through more empirical research. This exporting strategy in terms of IPLC will be usefull until our technology reaches that of developed countries and after that for our small/medium-sized exporting company.

地方行政 經營化의 方向과 戰略

姜太九 한양대학교 지방자치연구소 1998 地方行政 經營化의 바람직한 方向과 戰略 Vol.- No.1

중소기업의 국제경영활동 참여 : 광주 ·전남지역 중소기업의 인식제고를 위하여

강태구 전남대학교기업경영연구소 1992 經營情報 Vol.3 No.1

실제로 광주·전남 중소기업의 경우 가끔 우리보다 경제수준이 뒤진 파키스탄, 나이지리아, 인도 등지에서 이 지역 기업의 투자를 요청해 오는 것도 사실이고 또 현재 20여개의 우리기업이 광주·전남지역에서 외국기업과 합작으로 제품을 생산하고 있기도 하다. 또한 기업의 국제화란 수출에서부터 라이센싱이나 해외생산에 이르기 까지 그 대안이 다양하고 대부분의 국제기업들도 처음에는 국내지향적인 기업에서 시작하여 점차 수출 또는 라이센싱 등을 통해 해외시작에 발을 디딘 다음, 여기서 얻은 경험을 바탕으로 해외생산에 들어가는 점진적인 국제화단계를 거치는 것이 일반적이므로 광주·전남지역의 중소기업들도 국내시장만 그 목표로 하던 이전의 단계를 뛰어넘어 200년대를 향한 기업 성장을 위한 전략의 일환으로 점차 수출에서부터 기업국제화의 길로 들어설 필요가 있다고 사료되는 것이다.

光直交코드에 대한 干涉패턴의 確率分布에 關한 硏究

강태구,심형관 청주대학교 산업과학연구소 1997 産業科學硏究 Vol.15 No.2

In this paper, We study the probability density function for any two interfering OOC's. We interpret the bit error rate of the proposed FO-CDMA system as a function of data rate, code length, code weight, number of users, and receiver threshold: and we discuss the performance charateristics for a variety of system parameters. Furthermore, we discuss a means of reducing the effective multiple-access interference signal by placing an optical hard-limiter at the front end of the desired optical correlator