閑山·巨濟灣 굴, 진주담치 및 海水의 重金屬含量

黃奎喆,李應昊,金成晙 釜山水産大學校 1984 釜山水産大學 硏究報告 Vol.24 No.1

1982년 7월부터 12월까지 南海岸의 閑山·巨濟灣에서 양식되고 있는 굴 및 自生하고 있는 진주담치와 海水에 대한 重金屬(Hg, Cd, Cu, Pb 및 Zn) 含量을 調査하고 成長過程, 水深別 그리고 굴과 진주담치의 重金屬含量을 相互 比較하였다. 1. 海水에 있어 구리 含量은 대체로 表層이 5m層보다 높았고 그 平均값은 각각 5.0, 3.3ppb였으며, 水銀은 0.132, 0.137ppb로 表層과 5m層間에 差異가 거의 없었다. 2. 굴의 成長에 따른 重金屬含量은 대체로 아연과 구리는 增加하는 반면 카드뮴, 납 및 水銀은 특징적인 變化는 나타나지 않는다. 그리고 水深別(表層 및 5m層)굴의 重金屬含量은 아연과 구리에서 약간의 差異가 있을 뿐 다른 重金屬은 같은 수준이었다. 3. 閑山·巨濟灣에 있어 굴과 진주담치의 重金屬含量(1982年 10月 基準)은 각각 카드뮴 0.55, 0.21ppm, 구리 6.42, 0.66ppm, 납 0.69, 0.41ppm, 아연 101.6, 18.4ppm, 水銀0.009, 0.006ppm으로 굴이 진주담치보다 높았으며, 美國貝類衛生 7次 workshop 推薦暫定基準値인 카드뮴 1.5∼3.5ppm, 구리 42∼175ppm,납 2.0ppm, 아연 1,000∼2,000ppm, 水銀 0.2ppm에 比하여 낮은 값이었다. The quantitive analysis of heavy metals(Hg, Cd, Cu, Pb and Zn) in oyster, Crassostrea gigas, and blue mussel, Mytilus edulis, and growing water associated with hanging culture in Hansan-Geoje Bay on the south coast of Korea were conducted during the period of July to December in 1982. The content of heavy metals in shellfish by growth, water depth, and species were discussed. In sea water, copper content of surface water was in general highe than that of five meter depth to some extent with average of 5.0 and 3.3 ppb, respetively. There were little differences of mercury content between the two water depth, and averaged 0.132 and 0.137, respectively. Cadmium, lead and zinc were indeterminable. In oyster, the contents of copper and zinc by growth showed a trend of gradual increasing with increasing of meat weight, whereas there were little differences in cadmium, lead and mercury during the study period. And there were no differences between surface and five meter depth. The levels of heavy metal in oyster were consistently higher then that in blue mussel. Heavy metal content of both oyster and blue mussel in Hansan-Geoje Bay taking the results in October that it showed higher metal concentration in shellfish during the study period, were 0.55 and 0.21 ppm for cadmium, 6.42 and 0.66 and ppm for copper, 0.69 and 0.41 ppm for lead, 101.6 and 18.4 ppm for zinc and 0.09 and 0.006 ppm for mercury, respectively. They were much less than the alert levels for oyster proposed by the Chemical Task Force of U.S. FDA 7th National Shellfish Sanitation workshop in 1977 that were 1,000-2,000 ppm for zinc 42-175 ppm for copper, 1.5-3.5 ppm for cadmium, 2.0 ppm for lead and 0.2 ppm for mercury.

전기 화상 환자의 수술 전 평가,고압손상과 저압손상 비교

황정원,이정기,전영태,강종만,오용석,노규정,김현철 대한정맥마취학회 2004 정맥마취 Vol.8 No.1

직업무용단원들의 스트레스로 인한 생활습관의 변화요인 및 대처방안

황규자,박경숙 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2

This study looks into stress-related factors that have negative effects on performances of professional dancers. Furthermore, we determine how these factors change their living habits. The objective of this study is the improvement of their mental and physical health as well as their performance capabilities by understanding and enhancing possible solutions. In accordance with this objective, the following conclusion was derived from a comprehensive research into stress and living habits of professional dancers. First, there were seven physical, five mental, two environmental, and nine other factors that impede maximization of the potential of professional dancers in practice and during performances. Second, as for the ways that dancers deal with stress-related factors, they had seven ways to tackle excessive weakening of body strength, four ways to maintain their weight, and four ways bearing on casualties, all in terms of the physical factors. As for the mental factors, they had five means to deal with strain/stress before and during a performance, nine ways to solve concentration problems, six ways to overcome lost confidence; and as for tension with personal relations or the organization, they had six and five ways respectively for solving problems. Included in the environmental factors, there were ten methods for fixing problems with organizational administration and nine ways concerning their practice and performance schedules. Of the other factors related to stress, the dancers had three ways of coping with the lack of artistic perspective and four ways for solving problems arising from the lack of expert knowledge. Generally, the solutions to most of the factors were found outside the professional dancer's scope of work, such as taking a sauna, listening to music, and sleeping well. Irrefutably, it will be very helpful for dancers to improve their dynamic movements and conduct successful performances if various programs involving psychological techniques were researched that could be used to rid professional dancers of the many stress factors.

대학원 수준에서의 교원양성 방안

황규호 이화여자대학교 교육과학연구소 1999 교육과학연구 Vol.30 No.-

이 연구는 대학원 수준에서의 교원양성 교육 방안들을 비교 검토하기 위한 정책연구이다.최근 교육개혁의 성공적 정착을 위한 기본 요소로 교원의 자질 향상 방안이 모색되는 가운데, 교원 양성 교육을 대학원 수준으로 격상시켜야 한다는 주장이 종종 제기되고 있다.대학원 수준에서의 교원양성 교육의 필요성은 교원양성 교육기간 연장을 통한 교원 자질향상, 교원의 사회적 지위 향상, 교직의 개방성 증진 및 교원 수급 조절등 매우 다양하고 이질적인 문제 의식을 배경으로 하여 논의되고 있다.이 연구에서는 6년제, 2+4년제, 4+2년제, 복합형 등 대학원 수준에서의 교원양성 교육의 가능한 모형들의 주요 특징과 각각의 장단점을 비교 논의하였다.이들 모형 중 어느 모형을 채택할 것인지는 상당한 정도 이해 집단 사이의 힘 겨루기 양상을 띠게 될 것으로 예상되지만 모형 채택의 가장 중요한 고려 사항은 각 모형이 과연 어느 면에서 교원의 전문성을 심화 또는 약화시키는가 하는 점이 되어야 할 것이다.그리고 이러한 기준에 비추어 보면 4+2 체제보다는 6년제 또는 2+4체제가 교원의 전문성 신장에 더 도움을 줄 수 있을 것으로 판단된다. This study is a policy proposal for introduction of graduate school level initial teacher training in Korea. In recent years, there are growing concerns for improving teachers' quality as a key factor for educational reform, and in this context it is often argued that initial teacher training need to be upgraded to graduate school level. In this study, I examined possible models for graduate school level teacher training system: six(or five) years model, four years undergraduate and two years graduate(4+2) model, 2+4 model and compounded model. I argue that decisions on which model to be adopted should be based, first and foremost, on the consideration on each model's possible contribution to improving teacher's status, or providing more openness to the teaching profession, or even worse, keeping the balance of teacher supply and demand. I conclude that six years model or 2+4 model is more practical and sound model than 4+2 model.

Petri Nets 모델 개발에 의한 FMS 출력율 분석에 관한 연구

황규완,하정진 한국경영과학회 1994 韓國經營科學會誌 Vol.19 No.3

Petri Nets are a graphical and mathematical modeling and promising tool for describing and studying systems that are characterized as being concurrent, asychronous, dynamic, distributed and parrallel. The purpose of this paper is to analyze FMS Throughout-Rate by development of Petri Nets. So, it applied to FMS composed of 7 machines and 4 different job types. The result of this paper shows the advantage of using Petri Nets.

화물터미널 집배송센터의 최적설계를 위한 분석모델

황흥석,조규성 한국경영과학회 2000 한국경영과학회 학술대회논문집 Vol.- No.2

This paper focuses on a performance analysis model for optimizing the freight terminal design and layout using AutoMod simulator and numerical analysis. We developed a model to analyze the freiht terminal performance per unit time and the material handling cost based on both throughput and waiting due to conjestion. We developed computer program for this model and some sample results by both numerical method and AutoMod simulator are compared.

상상 속의 죄:『로저 맬빈의 매장』

황규룡 현대영미어문학회 1999 현대영미어문학 Vol.17 No.1

In the breast of Reuben an incommunicable thought-something which he was to conceal most heedfully from her whom he most loved and trusted. He regretted, deeply and bitterly, the moral cowardice that had restrained his words when he was about to disclose the truth to Dorcas. Reuben Bourne felt that for leaving Roger calvin he deserved no censure. His presence, the gratuitous sacrifice of his own life, would have added only another and a needless agony to the last moments of dying man; but concealment had imparted to a justifiable act much of the secret effect of guilt; and Reuben, while reason told him that he had done right, experienced in no small degree the mental horrors which Punish the perpetrator of undiscovered crime. By a certain association of ideas, he at times almost imagined himself a murderer. His one secret thought became like a. chain binding down his spirit and like a serpent gnawing into his heart; and he was transformed into a sad and downcast yet irritable Ran. "Roger Malvin's Burial" makes a sacrificial death the means of redemption, echoing, as it does so, both the Abraham and Isaac story and the story of Christ; but the rational clarity of allegory is wholly lacking in the tale, and it would be unwise to claim orthodoxy for Hawthorne on the basis of it. Reuben's sin was expiated-the curse was gone from him; and in the hour when he had shed blood dearer to him than his own, a prayer, the first for years, went up to Heaven from the lips of Reuben Bourne.

한국중소기업의 현황과 발전 방안

황규일 남서울대학교 경영연구센타 2003 경영연구 Vol.5 No.-

중소기업은 국가경쟁력의 원천으로서 국가경제에 미치는 영향력이 매우 크다. 그러나 우리나라 중소기업은 내 ·외적인 환경이 매우 어려운 실정에 처해있다. 내적으로는 양적인 기술투자의 미비, 재무구조 취약 그리고 인력의 부족으로 경쟁에서 매우 불리한 상황에 놓여 있다. 외적으로는 급속한 정보화의발전, 경기변동에 대응력 부족 아울러, 지리적으로 가까운 중국의 급부상으로 인하여 수출경쟁에서 경쟁력을 잃어 가고 있는 안타까운 현실에 직면에 있다. 본 연구는 우리나라의 중소기업의 현황을 알아보고. 중소기업의 당면과제와 문제점이 무엇인지 조사하여보려고 한다. 또한 중소기업이 앉고있는 당면과제를 해결할 발전방안을 어떠한 것이 있는지 제시하여 보고자 한다. Small and medium sized enterprises have leading role as a national competitiveness. eut Korean small and medium sized companies are placed on bad surroundings to have business activity. Those are placed in invest a low amount, bad condition of finance and insufficiency of manpower. In addition, those can't cope with the economic fluctuation and can't satisfy rapid growth E-Business situation. The emergence of China has a results that Korean small businesses are results in inferior state of export competitiveness in price. This paper is intended as an investigation of the present state and issue of Korean small sized companies and is to show implication of development

Cone beam형 전산화단층영상을 이용한 하악과두 위치의 연구

황형주,김규태,최용석,황의환 대한구강악안면방사선학회 2006 Imaging Science in Dentistry Vol.36 No.2

Purpose : To evaluate position of the mandibular condyle within articular fossa in an asymptomatic population radiographically by a cone beam computed tomography. Materials and Methods : Cone beam computed tomography of 60 temporomandibular joints was performed on 15 males and 15 females with no history of any temporomandibular disorders, or any other orthodontic or prosthodontic treatments. Position of mandibular condyle within articular fossa at centric occlusion was evaluated. A statistical evaluation was done using a SPSS. Results : In the sagittal views, mandibular condyle within articular fossa was posteriorly located at medial and central sections. In the coronal views, mandibular condyle within articular fossa was laterally located at central section. Mandibular condyles in the right and left sides were showed asymmetric positional relationship at medial, central, and lateral sections. Conclusion : Mandibular condyle within articular fossa in an asymptomatic population was observed nonconcentric position in the sagittal and coronal views.

다 속성의사결정 방법을 이용한 자체생산 및 외주 결정모델

황흥석,조규성 동의대학교 산업기술개발연구소 2001 産業技術硏究誌 Vol.15 No.-

This paper is concerned with the make-or-buy decision model for manufacturing systems. For the purpose of considering the multi-attribute in the decision making, We used two-step approach such as : in the first step, we used the multi-attribute analysis method using AHP(Analytic Hierarchy Process) and in the second step we used fuzzy set ranking methodologies to integrate the special decision problems; those of multi-objective, multi-criterion, and multi-attribute. We have proposed a procedure for the comparative judgement and priority for make-or-buy decision and also for the optimal resource allocation. First the rank-ordered priority lists of the projects are determined based on the AHP, then the aggregate fuzzy set rank order was computed. Finally, we have developed a systematic and practical program for simple and easy calculation of all the algorithms. It is found that the model validated by comparative computations in various make-or-buy example problems in manufacturing system.