CdSe ; Cu 광전도 cell 제작

신영진,정태수,신현길,김택성,정철훈,이훈,신영신 경북대학교 센서기술연구소 1992 센서技術學術大會論文集 Vol.3 No.1

SWAT 모형을 이용한 태화강유역 장기유출 분석

신현석(Shin Hyun Suk),강두기(Kang Du Kee),김균태(Kim Kyun Tae) 대한토목학회 2004 대한토목학회 학술대회 Vol.2004 No.10

학습장애인의 은유능력

한태현,신현기 한국특수교육문제연구소 2003 특수교육저널 : 이론과 실천 Vol.4 No.1

일반적으로 은유는 수사학에서 사용되고 있는 언어의 한 표현방식 정도로 인식되어져오다가,1960년대,Black 이 은유에 대해 새로운 철학적 이론으로서의 견해를 제시함으로써 비로소 철학적 입장으로서의 언어 즉,언어철학의 한 중요한 이슈가 되어지고 있다. 은유에 대한 그러한 연구들은 지시적,기호적으로 언어를 이해하는 것으로부터,확장 성장적, 실존적으로서 언어를 이해하는 것이 가능하도록 하였다. Ricocur의 주장에서 보는 바와 같이 은유는 자기 창조적 언어이자,상상적 그리고,역동적 언어이다. 이러한 기능을 가진 은유는 인간으로 하여금 실존으로 나가게 하는 언어로서의 기능을 하게될 수 있다. 또한,이 은유는 초인지적 도구로서 언어와 사고를 연결해 주는 역할을 하게 한다. 이를 연구자는 암묵적 지식으로 보았다. 인간은 자가가 표현할 수 있는 것보다 더 많은 것을 알고 있다는 폴라니의 말파 같이,은유는 현상적,표면적,과학적으로 측정할 수 있는 영역 그 이상의 언어이다. 앞으로 언어장애연구에 있어서,지금까지 해왔던 것처럼,표현된 언어이기는 하지만 알아듣기 어렵고,일반적 언어규칙을 따르지 않는 것에 대한 원인과 그것에 근거한 치료 방법을 모색하는 것도 중요하지만,나아가 드러나지 않는 아동의 언어와 사고에 대해서도 관심을 두고 연구한 필요가 있다. 특히 은유에 대한 연구는 이러한 암묵적 지식 연구의 대표적인 방법으로서,언어학적 측면은 물폰 철학적,심리학적 측면에서 중요한 기능을 할 것으로 판단된다. 마지막으로,이러한 은유적 능럭을 학습장애인도 소유하고 있을 것이라는 주장을 하면서,그들에 대한 고전적인 전통적인 지능에 입각한 시각을 비판하고자 하였다. This short essay attempts to approach metaphor as a multidisciplinary subject across different school. Although the issue is wide-ranging and complex, the growing philosopruca1 significance of metaphor parallels its increasing ìn educational and psychological significance. This essay provides the groundwork, context and locus for the following discussion, seeking to elucidate and criticÎze various different views on metaphor, and attempting to explore and develop the nature of metaphor. lVletaphor understood as a cognitìve event opens up a new phìlosophical paradigm in the study of language. Metaphor is then irreducible and, to an extent, inexplicab1e. This essay also suggest the ro1e of metaphor. Finally, it is hied to argue that people with 1eaming difficulties also have the metaphorical competence.

카올린에서 추출한 Silica로부터 탄소 환원질화에 의한 질화규소의 합성

신현택,형유업,박찬욱,배원태 慶尙大學校生産技術硏究所 1987 生産技術硏究所論文集 Vol.3 No.-

Nitriding behavior of the mixtures of amorphous silica extractracted from San Chung White kaolin and activated carbon Were studied by varying the carbon content, reaction temperature, and time under N₂atmosphere. Experimental results obtained from XRD, SEM and TEM indicated that the nitridation of the mixtures initiated below 1200℃ and mullite, silicon oxynitride, β-Sialon, β-SiC, and α-and β-Si₃N₄were identified as reaction products. Optimum nitridation condition of extracted silica were as follows. 1. Carbon/Extracted silica (in weight ratio)=3. 2. Reaction temperature; 1350℃ 3. Reaction time ; above 1hour.

정향 수침액에 의한 아나필락시의 억제 효과

신태용,김상현,이석봉,엄동옥,임종필,이은희,김형민 우석대학교 의약품개발연구소 1996 藥學硏究誌 Vol.1 No.-

The current study evaluates the capacity of Caryophylli Flos water extract(CFWE) to regulate immediate allergic reaction by control of histamine release. CFWE was found to exhibit a ingibitory activity on the compound 48/80-induced anaphylaxis. CFWE inhibited the serum histamine release induced in anaphylaxis by compound 48/80. CFWE was also showed a dose-depent activity on the conpound 40/80-induced histamine release from the highly purified population of Alcian Blue-positive peritoneal mast cells. This result suggest that CFWE may be useful for the prevention and treatment of allergy related disease.

생활폐기물을 이용한 세라믹스 판재 개발

신대용,임현태,최돈량 강원대학교 부설 석재복합신소재 제품연구센터 2002 석재연 논문집 Vol.7 No.-

생활하수처리장에서 발생하는 하수슬러지의 용융슬래그와 장석, 물유리 및 전분을 이용하여 세라믹스 다공판을 제조하였다. 슬래그의 주성분은 SiO_2와 Al_2O_3로서 점토와 유사한 성질을 갖고 있어 세라믹스의 대체원료로 사용이 가능하였다. 하수슬러지를 1,200℃에서 2시간 열처리하여 얻어진 용융물을 수증에 급랭시켜 1∼3mm 입경의 슬래그 분말을 제조하고 80∼95wt%의 슬래그, 5∼20wt%의 장석, 5∼15wt%의 물유리 및 2wt%의 전분을 혼합하여 1,100∼1,200℃에서 2시간 소성하여 시편을 제조하였다. 슬래그의 첨가량과 소성온도가 증가함에 따라 시편의 부피비중 및 압축강도는 증가하였으나, 기공률과 흡수율은 감소하였다. 1,030℃에서 2시간 소성한 No. 1, 4 및 7번 시편은 부피비중 1.52∼1.67, 기공률과 흡수율 23.3∼ 32.5% 및 14.1∼19.3%, 압축강도 81∼173kgf/㎠의 값을 나타내었다. 또한, 슬래그의 첨가량과 소성온도가 동등한 시편은 물유리의 첨가량이 증가함에 따라 부피비중과 압축강도가 증가하여 No.7, 8 및 9번 시편은 부피비중 1.52∼1.94, 압축강도 81∼385kgf/㎠의 값을 나타내었다. 시편의 중금속용출량은 미량으로서 매립지 침출수배출 허용기준치보다 낮게 측정되어 주위환경에 해가 없고 흡음특성이 양호하여 본 연구에서 제조한 세라믹스 다공판은 흡음판으로의 이용이 가능하였다. Utilization of sewage sludge from the sewage sludge treatment facilities and the municipal wastes became very important matter to be solve for the environmental protection and recycling of waste materials. The reusability of sewage sludge slag as a raw material in the manufacturing process of ceramics was highly expected because the chemical composition of slag was mostly SiO_2 and Al_2O_3 and its properties were very similar with clay. Sewage sludge slag was fabricated by sintering at 1,200℃ for 2 hours and it was crushed into powder with particle size of 1∼3mm by a rapid cooling treatment in water. Then, the mixture of 80∼95 wt% of slag, 5∼20 wt% of feldspar, 5∼15 wt% of water glass and 2 wt% of starch were heated at 1,000∼1,100℃ for 2 hours. The density and compressive strength of specimen increased with increasing the sintering temperature and the addition amount of slag, No. 1, 4 and 7, specimens were shown 1.52∼1.67 of bulk density, 23.3∼32.5% of porosity, 14.1∼19.3% of water absorption and 81∼173 kgf/㎠ of compressive strength. And, that of the specimen at the same sintering temperature and addition amount of slag increased with increasing the addition amount of water glass, No. 7, 8 and 9 specimens, bulk density was 1.52∼1.94 and the compressive strength was 81∼385kgf/㎠. An extraction test for specimen to detect the toxic materials, such as Cu, Cd, Cr, Pb and As, showed below the permitted standard of land-filling extractable heavy metal contents. Sound absorption coefficients of specimen had a good properties in No. 7 specimen, and can be used as a sound absorption plate.

칼라영상 입 ·출력 시스템의 칼라보정 알고리듬에 관한 고찰

신현덕,김일태,임재권,윤동한 國立金烏工科大學校附設生産技術硏究所 1995 産業技術開發硏究 Vol.11 No.-

Colors reprodued by color image processing system are affected by various physical factors and environmental conditions. Therefore it is difficult to reproduce the original object color accurately. Thus color calibrations of the input and output data of color image processing system based on spectral distributions are required. We propose a color calibration algorithm by considering spectral characteristic of the chosen color reproduction system which can be applied to device independent color reproduction using characteristic vectors of surface reflectance. The method comprised of two steps. The first step is color analysis step which reproduces the original object color from the camera output using color characteristic vectors. The second step is color synthesis step which displays the original color accurately on the monitor by considering the monitor's phosphor spectra. The spectral responsivities of camera sensors and phosphor spectral characteristics of a given monitor are evaluated. Also, to evaluate color reproducing characteristic we applied the proposed color calibration algorithm by choosing Macbeth ColorChecker's twenty four color spectra as a test color set. As a result, we reconstruct the actual color very closely on monitor using the proposed color calibration algorithm.

간외담관 폐쇄에서의 초음파소견 : 담관벽 경계소실의 중요성 Significance of Decreased Echotexture of Bile Duct Wall-Interface

신현준,손은주,이창희,최영칠,전혜정,박정희,이태의 건국대학교 의과학연구소 2002 건국의과학학술지 Vol.12 No.-

Ultrasound is very useful in evaluation of obstructive jaundice. We retrospectively evaluated the useful findings of ultrasonography in differentiating benign extrahepatic duct obstruction from malignant diseases. Among the 36 patients, 25 patients were benign extrahepatic obstruction and 11 patients were malignant obstruction. The shapes of extrahepatic dilatation were classified into fustiform, meniscus, and abrupt cut off by bowel gas. The diameter, length, and bile duct wall-interface were compared between benign and malignant groups and serum bilirubin and alkaline phosphatase were also compared between two groups retrospectively. The results were as follows. The most common form of extrahepatic dilatation was meniscus(10 of 26 patients, 38%) in benign obstruction, and fusiform(8 of 11 patients, 73%) in malignant obstruction. No significant difference was noted in diameter, length, serum bilirubin, and alkaline phosphatase between benign and malignant groups. Only one case showed decreased bile duct wall-interface in benign obstruction, but loss or decrease of bile duct wall-interface were 8 patients in malignant obstruction. The combined findings of fusiform dilatation and loss of bile duct wall-interface in ultrasonography will be helpful in differential diagnosis of malignant extrahepatic bile obstruction from benign conditions.

구리 독성에 기인하는 비정상적인 어류행동의 신경생화학적 분석

신성우,조현덕,전태수,김정상,이성규,고성철 한국환경독성학회 2003 환경독성보건학회지 Vol.18 No.2

The goal of this study is to develop a biomarker used in monitoring abnormal behaviors of Japanese medaka (Oryzias latipes) as a model organism caused by hazardous chemicals. Japanese medaka was treated by copper of appropriate sublethal concentrations after starvation for 48 hr, The untreated individuals showed common behavioral characteristics (i.e., smooth and linear movements). Locomotive activity of the fish was monitored using an image processing and automatic data acquisition system. When treated with copper (100 ppb), the fish showed shaking patterns more frequently. As the concentration of copper increased to 1,000ppb, activity decreased, and the fish showed an erratic movement. Fish were exposed to copper at various concentrations (0, 100 and 1,000 pph) for 24 hrs, and acetylcholine esterase (AChE) activity was observed. When fish were exposed to 1,000 ppb of copper, the body AChE activities appeared to decrease but the head AChE activities showed little change. Expressions of tyrosine hydroxylase (TH) protein in the different organs from both head (brain) and body(kidney) portions affected by the copper treatment were analyzed using immunohistochemical technique compared with control. Five organs of the fish (olfactory bulb, hyothaiamus, optic lobe, pons and myelencephalon regions) showed a relatively strong TH protein expression in the control experiment. A differential expression of TH, however, was observed in the treatment (100 ppb and 1,0M ppb). The treatment (1,000 ppb) significantly suppressed TH protein production in the brain regions. In kidney, however, the same treatment caused little suppression compared with the control. Copper appeared to be less effective in suppression of TH than diazinon, a known TH suppressor. It was concluded that TH could be used as a potential biomarker to monitor the acute copper toxicity in Japanese medaka.

Vincristine Sulfate가 Mouse 모낭세포의 미세구종에 미치는 영향에 관한 전자현미경적 연구

신현태,이규식,류재만 한양대학교 의과대학 1990 한양의대 학술지 Vol.10 No.1

Vincristine sulfate, one of thte Vinca alkaloids has been used clinically as an antitumor reagent. Vincristine sulfate has high affinity to the basic protein subunit of microtubules, that it disrupts the mitotic spindle apparatus. As a result this reagent causes the cell to arrest in metaphase and to die finally. When vincristine was spread on the skin it would damage the growth of the hair, that the author undertook the present study to observe the effect of vincristine onthe cytoplasmic organelles of the hair follicular cells. Male albino mouse, DDY strain, weighing 20gm were used as an experimental animals. The back skin of experimental animals were spread with a vincristine sulfate solution(1mg/5ml) once a day for 6 days after cutting of the hair. The experimental animals were sacrificed at 2 day, 4 day, and 6 day after first treatmetn and specimens obtained from the skin of the vincristine treated area. The specimens were prefixed in 2% glutaradehyde-2.5% paraformaldehyde solution and postfixed in 1% osmium tetroxide solution and then ultrathin section, 600-800A, were made and stained with uranyl acetate and lead citrate. Some specimens were also fixed in 10% formalin for hematoxylin eosin stain. The specimens were observed with light microscopy and JEM 100cx-II electrom microscopy. The results were as follows. 1. Hair follicles were decreased numerously in the skin of the 4th and 6th vincristine treated group. And the length of the hair was reduced in the skin of the 6th vincristine treated group. 2. In the 2nd vincristine treated group, irregularly shaped nuclei, reduced heterochromatin and numerous vacuoles wre observed in the external root sheath cells. In cells of the inner root sheath, heterochromatin was segregated and clumpped, and cristae of mitochondria was disappeared. 3. In the 4th vincristine treated group, dilatation of cisternae of the rough endoplasmic reticulum, degenerated mitochondria were observed in the external root sheath cells. And trichohyaline granules were reduced and condensed nuclei were observed in the cells of the Henley's layer. 4. In the 6th vincristine treated group, cuticle cells were more keratinized. And in the external root sheath cells, colummar shaped nuclei, degenerative mitochondria and rough endoplasmic reticulum, and decreased cisternae of Golgi apparatus were observed. Consequently, it is suggested that vincristine sulfute would induce the degenerative changes in the hair follicular cells.