원자력 사고 중 핵종의 건·습침적에 따른 농작물 오염 영향

황원태,김은한,서경석,한문희,최용호,이창우 대한방사선 방어학회 2002 방사선방어학회지 Vol.27 No.3

핵종의 지표 침적 모델의 고찰과 함께 방사성물질의 공기중 농도로부터 건침적 뿐 아니라 습침적에 따른 농작물 오염 영향을 분석, 고찰하였다. 이를 위해 방사성물질의 지표 침적량으로부터 농작물의 오염을 평가하는 기존 동적 섭식경로모델을 공기중 농도 또는 지표 침적량으로부터 평가할 수 있도록 개선하였다. 평가결과, 방사성물질의 지표 침적량은 습침적에 의한 영향이 건침적에 의한 영향보다 뚜렷이 높으나, 농작물의 오염정도는 핵종, 강우율 등에 따라 다르게 나타났다. 이러한 현상은 방사성물질의 지표 침적과 농작물에로의 차단중 어느 과정이 농작물 오염에 보다 지배적으로 작용하는가에 기인한다. Combined with deposition model onto the ground of radionuclides, the influence of radioactive contamination to agricultural products was analyzed due to wet deposition as well as dry deposition from radioactive air concentration during a nuclear emergency. The previous dynamic food chain model, in which initial input parameter is only radionuclide concentrations on the ground, was improved for the evaluating of radioactive contamination to agricultural products from either radionuclide concentrations in air or radionuclide concentrations on the ground. As the results, in case of deposition onto the ground, wet deposition was more dominant process than dry deposition. While the contamination levels of agricultural products were dependent on the a variety of factors such as radionuclides and rainfall rate. It means that the contamination levels of agricultural products are determined from which is more dominant process between deposition on the ground and interception onto agricultural plants.

총상에 의한 하악결손의 재건술

황오열,박치영,김용배,안희창 大韓成形外科學會 1987 Archives of Plastic Surgery Vol.14 No.3

Most mandibulr reconstructions are performed primarily or secondarily for bony defects caused by injuries or removal of tumors. An autogenous bone greft is still the method of choice for the restoration of mandibular defec. But a conventional autogenous free bone graft does not possess an intact blood supply and is dependent on local nutrition to survive. Severely scarred or radiated tissue are unfavorable beds for bone graft and even more the risk of resorption and infection is inceased in these kinds of a pooly vascularized bed. To overcome this difficulty, free vascularized bone graft has been tried with microsurgical gical technuque. A free vascularized bone graft has significantly higher rate of survival, with less resorption and higher resistance to infextion than a connentional free bone graft. A free vascularized iliac bone graft pedicled on deep circumflex iliac vessels is used widely, as it have many advantages such as, availability of large bloc of composite tissue, simplicity of donor dissection, large and long vascular pedicle and few donor site morbidity. In this paper, we represent 4 cases of reconstruction of wide mandibular defects using free vascularized iliac bone graft and free dsteocutaneous groin flap, and review the characteristics of gunshot wound. The result is satisfactory.

흰쥐 대뇌피질에서의 Cholecystokinin Octapeptide의 分布

황정한,조희중,김은희,박매자,배용철,홍해숙,주강 慶北大學校 醫科大學 1990 慶北醫大誌 Vol.31 No.4

흰쥐 대뇌피질에서 cholecystokinin octapeptide(CCK-8)의 분포를 관찰하기 위하여 간접면역형 광법을 행하여 관찰해 본 결과 다음의 많은 부위에서 CCK-8양성세포 및 양성섬유를 관찰할 수 있었다. 신피질: CCK-8양성세포는 주로 제2, 3층에서, 양성섬유는 제2, 3 그리고 6층에서 저밀도를 나타내었다. 후구: 전후핵에서 많은 CCK-8양성세포 및 양성섬유를 관찰하였다. 이상엽 및 후내야: 양성세포는 주로 제2층에서 관찰되었으며 양성섬유는 제2층에서 중밀도 제3층에서 저밀도로 관찰되었다. 해마체: 많은 양성세포 및 고밀도의 양성섬유가 원추세포층에서 관찰되었다. In order to investigate the distribution of immunoreactive cholecystokinin octapeptide (CCK-8) containing neurons in the cerebral cortex of the rat, brains of the rats were processed for indirect immunofluorescent technique. The results obtained were as follows. Neocortex; CCK-8 immunoreactive cell bodies were found in layer Ⅱ and Ⅲ and immunoreactive axon terminals were heaviest in layers Ⅱ, Ⅲ and Ⅵ. Olfactory bulb; The anterior olfactory nucleus contained numerous CCK-8 immunoreactive cell bodies and a moderate density of immunoreactive axon terminals. Piriform and entorrhinal cortex; CCK-8 immunoreactive neurons and axon terminals were observed in layer Ⅱ and Ⅲ. However, they were more frequent in layer Ⅱ. Hippocampus; CCK-8 immunoreactive cell bodies and axon terminals were found in pyramidal layer.

전대역 매칭 특성을 갖는 대역통과 여파기 설계

황희용,조정훈 강원대학교 정보통신연구소 2005 정보통신논문지 Vol.9 No.-

This paper presents a design of all band matched BPF, which has impedance matched characteristics in pass band as well as its stop band. The BPF is a kind of balanced structure which is made of two wideband quadrature 3 dB couplers and two band pass filters. The experimental results of a balanced type band pass filter show impedance matched characteristics not only within the pass band of about 80 MHz but also at the stop bands from 1.0 GHz to 3.0 GHz including upper and lower stop band. This BPF could give system designers a new and easier way to eliminate multiple reflection problems in RF systems.

MDS에 의한 소매점포의 공간도 구성

황용철,김정희 제주대학교 관광과경영경제연구소 2002 産經論集 Vol.17 No.-

LTCC 기술을 이용한 광대역 3㏈ 결합기 설계 및 제작

황희용,조정훈 강원대학교 정보통신연구소 2005 정보통신논문지 Vol.9 No.-

This paper presents a 3 dB wideband tandem quadrature coupler fabricated by LTCC technology. The 3 dB tandem coupler was designed with minimum numbers of layers and via holes to reduce the cost and to increase yield on manufacturing. Since tight coupling value is easily achievable with the tandem structure, any high impedance lines or tight coupling gaps can be avoided. The simulated and measured data shows wide bandwidth from 1.4 GHz to 2.4 GHz with 0.3 dB amplitude imbalance, phase difference within 1.5 degree, and the isolation characteristics about 20 dB. The size of fabricated 3dB coupler is 9.64×10.42×1.74㎣.

創傷의 經過時間

黃迪駿,李羲碩,南容碩 大韓法醫學會 1994 대한법의학회지 Vol.18 No.2

When examining a victim of viloence, no forensic pathologist is fulfilling his role when one confines the report to merely a numbered lists of wounds found on the corpse. Of course, the nature, exact position, and dimensios of every injury should be described, and it should e photographed. However, the distinction between antemortem and postmortem injuries and their proper timing is one of the cardinal problems of froensic medicine. It help not only to convict guilty but also to acquit persons who are suspect but in factnot guilty. The cause of death is sometimes of less importance than the recsotruction of events, which may become possible with careful examination of the wounds and their proper timing. As with time of death, it can be a very dificult matter in forensic medical investigations to determine whether a wound found at autopsy was inflicted before or after death, and if ante-mortem, how long before death was it sustained? Unfortunately, as with so many problems, biological variability introduces a wide range of uncertainty about the time of wound, so that a range of probabilities can be offered, but never a definite time interval. Therefore, the purpose of this paper is to discuss pros and cons about various dating methods of ante-mortem wound that have been published.

삼풍백화점 붕괴사고의 신원확인을 위한 다형성 유전좌위의 선정

황적준,남용석,이희석,이혜린,김희선,김경훈 內務部 國立科學搜査硏究所 1996 國立 科學 搜査 硏究所 年報 Vol.28 No.-

새마을 運動 實績評價模型 作成에 관한 硏究

黃明燦,玄斗日,梁始浩,朴英熙,金龍國,申大淳 건국대학교 1974 學術誌 Vol.17 No.1

The New Village (Sae-ma-eul) movement is Korean version of Community Development that has under-gone widespread exploration, experimentation and application in developing countries throughout the world in recent years. In most countries the national governments have undertaken the iniative in Community Development through appropriate ministries or special agencies. The New Village Movement was initiated in 1970 by Korean government. But it became a people's movement for self-development as more and more people participated in the developmental programs. The major objectives of the New Village movement are to redress the economic disparities between the rural and urban areas by improving the economic, social and cultural conditions of rural Communities, to reform the way of life in rural villages by encouraging the attitude of self-help, and to increase the income of the farmers and fisher man. Since 1971, An enormous amount of public and priate money has been invested into the New Village Movement. It seems that the time has arrived when some framework for evaluating the whole program is to be developed. Thus, The objective of this study is to develop an appropriate to evaluate the new village project at the village level. Ten major factors which are supposed to be relevant for evaluation of the project was selected. The evaluation model thus developed can be summarized in the following format. ◁표 삽입▷ (원문을 참조하세요)

코디네이션 :企業의 內部 效率性에 關한 小考(1)

黃熙榮 서울大學校經濟硏究所 1999 經濟論集 Vol.38 No.4

전통적으로 기업의 생산성은 투입-산출 관계에 의해서 기술 수준 혹은 노동과 자본의 양적 투입으로 측정되었다. 그러나 이 외에도 기업의 생산성 향상에는 새로운 원천이 존재하는데 그것은 '코디네이션'이다. 이 개념에 따르면 '內部的 摩擦'이 적은 기업을 보다 효율적인 기업이라고 할 수 있다. 기업간 경쟁이 글로벌화되고 사회적으로 정보화가 심화되면서 기업의 유연성과 신속한 대응이 기업 경쟁력에 더 중요해졌다. 내부적 마찰을 줄이는 것은 유연성과 신속성에 밀접한 관계가 있다. 본 논문에서는 '코디네이션'의 개념을 소개하고, 어떻게 마찰에 의한 비용이 발생하는지 밝히며, 실제 사례를 제시한다.