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ORYZA2000을 이용한 유기 벼 재배 시스템의 질소 동태 및 벼 생육 모의
신재훈,이상민,옥정훈,남홍식,조정래,안난희,김광수,Shin, Jae-Hoon,Lee, Sang-Min,Ok, Jung-Hun,Nam, Hong-Sik,Cho, Jung-Lai,An, Nan-Hee,Kim, Kwang-Su 한국유기농업학회 2017 韓國有機農業學會誌 Vol.25 No.4
The study was carried out to develop a mathematical model for evaluating the effect of organic fertilizers in organic rice production systems. A function to simulate the nitrogen mineralization process in the paddy soil has been developed and integrated into ORYZA2000 crop growth model. Inorganic nitrogen in the soil was estimated by single exponential models, given temperature and C:N ratio of organic amendments. Data collected from the two-year field experiment were used to evaluate the performance of the model. The revised version of ORYZA2000 provided reasonable estimates of key variables for nitrogen dynamics and crop growth in the organic rice production systems. Coefficient of determination between the measured value and simulated value were 0.6613, 0.8938, and 0.8092, respectively for soil inorganic nitrogen, total dry matter production, and rice yield. This means that the model could be used to quantify nitrogen supplying capacity of organic fertilizers relative to chemical fertilizer. Nitrogen dynamics and rice growth simulated by the model would be useful information to make decision for organic fertilization in organic rice production systems.
메트헤모글로빈혈증을 보인 indoxacarb 중독 1례
신재훈,이재광,박성수,나상준,박준석,Shin, Jae-Hoon,Lee, Jae-Kwang,Park, Seong-Soo,Na, Sang-Jun,Park, Joon-Seok 대한임상독성학회 2006 대한임상독성학회지 Vol.4 No.2
Acute methemoglobinemia is induced by various causes, especially ingestion of oxidizing agents such as phenazopyridine, dapsone, and nitrite. Indoxacarb is an oxadiazine insecticide with high insecticidal activity and low mammalian toxicity. It is known to block voltage-gated Na+ channels in insects and mammals, but the mechanism is not yet well understood. We describe a case of a 41-year-old woman with methemoglobinemia that developed following Indoxacarb ingestion, which improved after intravenous injection of methylene blue. This is the first known such case. If signs and symptoms of methemoglobinemia occur after Indoxacarb ingestion, antidotal therapy with methylene blue should be considered as a necessary treatment.
신재훈,이정수,한은숙,신용규,이광수,Shin, Jeh-Hoon,Lee, Chung-Soo,Han, Eun-Sook,Shin, Yong-Kyoo,Lee, Kwang-Soo The Korean Society of Pharmacology 1989 대한약리학잡지 Vol.25 No.1
면역 보체가 결합되어 있는 zymosan에 의하여 활성화된 다형핵 백혈구에서 세포 투과성 물질인 N-ethylmaleiamide과 $Hg^{++}$은 superoxide 라디칼 생성, NADPH oxidase 활성도 및 lysosomal enzyme (lactic dehydrogenase, ${\beta}-glucuronidase$)의 유리를 억제하였다. 세포막 단백에 특이적인 p-chloromercuribenzoic acid와 p-chloromercuribenzenesulfonic acid는 superoxide 라디칼 생성에 영향을 주지 않았으나 NADPH oxidase 활성도와 lysosomal enzyme의 유리를 억제하였다. 식작용 중에 세포막과 세포내의 sulfhydryl기는 반응시간에 따라 점진적으로 감소하였다. N-ethylmaleiamide와 $Hg^{++}$은 세포막과 세포내의 sulfhydryl기를 모두 감소시켰다. P-Chloromercuribenzoic acid와 p-chloromercuribenzenesulfonic acid는 세포막의 sulfhydryl기를 유의하게 감소시켰으나 세포내 용해성 sulfhydryl기에는 영향을 주지않았다. Cysteine과 mercaptopropionylglycine는 superoxide 라디칼의 생성과 lysosomal enzyme의 유리를 억제하였다. Gluthathione은 superoxide생성에 영향을 주지 않았으나 뚜렷하게 lactic dehydrogenase의 유리를 억제하였다. N-ethylmaleiamide에 의한 superoxide 생성의 억제는 cysteine과 mercaptopropionyl-glycine에 의하여 반전되었으나 gluthathione의 영향은 없었다. N-ethylamleiamide에 의한 NADPH oxidase의 비활성화는 gluthathione, cysteine과 mercaptopropionylglycine에 의하여 저해되었다. Carbachol에 의하여 항진된 superoxide 라디칼 생성은 N-ethylamleiamide에 의하여 완전히 억제되었고, atropine에 의하여 길항되었다. 그러므로, 외부 자극에 대한 다형핵 백혈구 반응의 표현은 sulfhydryl기의 양의 변화와 연관이 있을 것으로 시사되었다. Lysosomal enzyme 유리는 세포막과 세포내의 sulfhydryl기에 의하여, 이에 반하여 superoxide생성은 세포내 sulfhydryl기에 의해서 영향받을 것으로 추정되었다. In opsonized zymosan activated PMN leukocytes, N-ethylamleiamide and $Hg^{++}$, penetrable sulfhydryl group inhibitors, inhibited superoxide generation, NADPH oxidase activity and lysosomal enzyme (lactic dehydrogenase and ${\beta}-glucuronidase$) secretion. P-Chloromercuribenzoic acid and p-chloromercuribenzenesulfonic acid, surface sulfhydryl group inhibitors did not affect superoxide generation but effectively inhibited both NADPH oxidase activity and lysosomal enzyme secretion. During phagocytosis, contents of surface and soluble sulfhydryl groups were gradually decreased with increasing incubation times. N-ethylmaleiamide and $Hg^{++}$ caused a loss of both surface and soluble sulfhydryl groups. P-Chloromercuribenzoic acid and p-chloromercuribenzenesulfonic acid significantly decreased the surface sulfhydryl content but did not after soluble sulfhydryl groups. Cysteine and mercaptopropionylglycine inhibited superoxide generation and lysosomal enzyme secretion. Glutathione had no effect on superoxide generation but remarkably inhibited lactic dehydrogenase release. Suppression of superoxide generation by N-ethylmaleiamide was reversed by cysteine and mercaptopropionyl-glycine but not by glutathione. Inactivation of NADPH oxidase by N-ethylmaleiamide was prevented by glutathione, cysteine or mercaptopropionylglycine. Stimulated superoxide generaion by carbachol was completely abolished by N-ethylrnaleiamide and antagonized by atropine. Thus, the expression of PMN leukocyte response to external stimuli may be associated with the change of sulfhydryl groups content. It is suggested that lysosomal enzyme secretion is influenced by both surface and soluble sulfhydryl groups, whereas superoxide generation by intracellular soluble sulfhydryl groups.
신재훈 ( Shin Jae-hoon ) 세명대학교 지역문화연구소 2006 지역문화연구 Vol.5 No.-
The purpose of this article is to explore a feature of writing scenario, which have been considered as writing novel. Properly the movie is formated with two aspects; the one is narrative aspect and the other is image aspect. Until now the study of genesis of meaning in movie has been biased toward the former that is similar with the study of novel. But image generates the meanings in itself too, which is the basic of ontology of image. Ontology of image is not metaphysics, but semiology which concerns on signification. Therefore the analysis of scenario must be proceeded on two ways; analysis of narrative and analysis of image. And it is a matter of course that analysis of relations with narrative and image must be proceeded. In this study I gave emphasis on image aspect. This strategic emphasis is adequately reasonable. The study on narrative aspect in movie has pressed the study on image aspect. As a result, the study on scenario is fixed on the study on traditional narrative which is same Hollywood narrative. Therefore emphasis on image is released from press of narrative aspect. In conclusion, the writing scenario is a praxis of image, not narrative. The use of 'praxis' is reflected on the such situation. But the theory of praxis of image in writing scenario must be reserved and recomposed. The situation is radically changed. The changed situation is the raising of digital media in media environment. It is fair and proper that digital media forces to change the relations with image and narrative in analogy media environment. Therefore it is important to stress the next step; it must be explore that what is digital image and how recompose the praxis of image.
신재훈(Jaehun Shin),김종훈(Jong-Hoon Kim) 한국정보과학회 2000 한국정보과학회 학술발표논문집 Vol.27 No.2Ⅱ
전통적인 교수 · 학습의 형태를 벗어나 새로운 환경인 웹을 통한 교육이 이루어지고 있다. 그러나 대다수의 웹을 통한 교육들은 단지 웹 환경이라는 이름 하에 평면적인 의사소통의 한계를 벗어나지 못하고 있는 실정이다. 이에 대한 대안으로 본 연구에서는 가장 대중적인 실시간 의사소통 프로그램인 채팅 프로그램을 기반으로 교육용 대화 애플리케이션을 개발하였다. 이 애플리케이션이 교실 내 · 외적으로 열린교육에 대한 지대한 관심을 쏟고 있는 최근의 학교 교육에 하나의 학습 도구로서 활용될 수 있음을 기대한다.
신재훈(Jae Hoon Shin),한훈식(Hun Sik Han),김윤호(Yun Ho Kim),김서영(Seo Young Kim) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
The thermal performance of a thermoelectric module in a thermoelectric cooling system with a heat sink is analytically and experimentally examined. The thermoelectric cooling system is composed of a thermoelectric module and two heat sinks. The thermal performance of a thermoelectric module (Seepel, Crystal) is analytically taken into account. The results show that COP (coefficient of performance) of a thermoelectric module is reduced and the heat absorbed increases as the input voltage increases. The thermoelectric cooling system with 12V provides 73.3% lower COP and 46.7% higher heat absorbed compared to 5V, experimentally. The theoretical predicted result is in good agreement with the measured data.