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      • Investigation of the April 2000 forest fire damage in Kang-won Province, Korea, using RADARSAT data

        Kang, Sung Chul,Seo, Jin Won,Lee, Tae Hee,Park, Sang Eun,Hong, Suk Young,Moon, Wooil M. 대한원격탐사학회 2000 International Symposium on Remote Sensing Vol.16 No.1

        The series of forest Fires in Kangwon Province in April, 2000, were one of the mast serious ones in the Kang-won Province in recent years. The fire damaged areas are extensive and this paper investigates the utility of the satellite image data, particularly the RADARSAT SAR data. One of the main objectives of this study included evaluation of potential usefulness of the C-band RADARSAT data in the detection of forest fires in mountainous areas. Among several fire damaged sites, the area near Samchuk (city) was selected as the main study area and mufti-temporal RADARSAT(raw) data were acquired and the processed results were comparatively investigated with the IRS-1c data acquired shortly after the fire. To identify the burnt area from the undamaged background in the optical imagery, supervised classification and NDVI processing were carried out and tested with the IRS-1C data. For this experiment, several sets of raw RADARSAT standard and Fine mode (S4, F3, ascending orbit) data were processed and the final image was formed. In addition to the final image, sigma nought (σ°) was catnputed and compared for the burnt area against the undamaged areas. Because of the steep slopes in the study area and subsequent deviation from the flat surface scattering models, the fire scars in the sigma nought (σ°) image were not apparent. However, fire scars are slightly detected in the difference and ratio images obtained from the signal intensity data acquired at different dates (bath before and after fire). Texture analysis of the image data including the burnt areas were carried out using the Multiplicative Markov Random-Field (MMRF) algorithm. The detection of the fire damaged area from both standard mode and fine mode RADARSAT was not as straightforward as in optical data. However, Previous studies with ERS-1 S_AR and RADARSAT data in Indonesia and in the North American Plains indicate that C-band SAR data provide us with an effective tool for studying the forest fire damages. However, the application of C-band SAR data to the analysis of the forest fire areas requires careful processing of the data with realistic scattering models.

      • KCI등재

        Assessment of In Vitro Assay System for Thyroid HormoneDisruptors Using Rat Pituitary GH3 Cells

        Hee Jin Kim1,Hae Young Park1,Jeonga Kim1,Il Hyun Kang2,Tae Sung Kim2,Soon Young Han2,Tae Seok Kang2,Kui Lea Park2,Hyung Sik Kim1 한국독성학회 2006 Toxicological Research Vol.22 No.4

        The development of in vitro assays has been recommended to screening and test-ing the potential endocrine disruptors (EDs). These assay systems focus only on identifying thethe thyroid hormone (TH) disruptors. The aim of this study was to evaluate a test system to detectTH disruptors using rat pituitary tumor GH3 cells. The test system is based on the TH-dependentincrease in growth rate. As expected, L-3,5,3-triiodothyronine (T3) markedly induced a morphologicalchange in GH 3 cells from flattened fibroblastic types to rounded or spindle-shaped types. T3 stimu-lated GH3 cell growth in a dose-dependent manner with the maximum growth-stimulating effect9 M. In addition, T3 increased the release of growth hor-mone and prolactin into the medium of the GH3 cells culture. Using this assay system, the TH-dis-rupting activities of bisphenol A (BPA) and its related compounds were examined. BPA,dimethylbisphenol A (DMBPA), and TCI-EP significantly enhanced the growth of GH3 cells in therange of 1 × 10-5M to 1 × 10-6M concentrations. In conclusion, this in vitro assay system might bestandardization before it can be used as a broad-based screening tool.

      • <돈 끼호떼>에 나타난 속담 속의 현실성

        姜泰鎭 대구효성가톨릭대학교 1986 연구논문집 Vol.32 No.1

        En la obra, "El ingenioso hidalgo Don Quijote de la Mancha". muchos refranes se han citado por las personas, entre las cuales Sancho Panza es muy distinguido porque el actua como un diccionario de refran. 'Dime con quien andas, decirte he quien,' o 'auando a Roma fueres, haz como vieres,' etc los que son muy populares a nosortros se derivan de esta obra. Primero, vamos a ver los caracteres del refran, Comunmente este es forklorico, humano, que es de los pensamientos y experiencias de los sabios antighuos. En base de estos sentidos, vamos a estudiar las caracteristicas de dos protagonistas: Don Quijote y Sancho Panza comparando los refranes de cada uno. Sobre todo, analicemos los refranes de Don Quijote que se describe como la primera personal quien se esfuerza por armonizar la realidad con su propia idea. en el punto del numero, Don Quijote dice solamente un tercio en comparacion con los refranes de Sancho. Sin embargo, sus refranes nos dicen algunas cosas. Primero, la desconfianza de la sociedad misma; el menciona el peligro social con siguientes refranes. 'Mis arreos son las armas, im descanso, el pelear,' y 'cuando la cabeza duele, todos los miembros duelen.' etc. Segundo, la tendencia del cambio social; en este caso, nuestro protagonista expresa la intencion de que el quiere escaparse rapidamente del ambiente social de aquel tiempo con esto. 'Donde una puerta se cierra, otra se abre.' Tercero, el metodo de existencia del individualismo: en este caso, parece que el autor trata de recuperar el humanismo menospreciado. Por lo tanto, en los dialogos con Sancho, se ven algunos refranes para expresar la situacion de aquel entonces. Y luego, el autor eleva el individualismo con 'Cada uno es artifice de su ventura'. Entonces, vamos a observar los refranes de Sancho Panza. Generalmente, el se expresa como 'un hombre de bien (si es que este titulo se puede dar al que es pobre), pero de muy poca sal en la mollers' en la obra. Pero, en el aspecto de los refranes, el es gran sabio y dice que ''ninguna otro tengo, ni otro caudal alguno, sino refranes y mas refranes.' Los refranes de Sancho se dividen en tres partes, los elementos economicos: el muestra el mammonismo, es decir solamente los ricos puenden gozarse de los derecho humanos segun 'Bien predica quien bien vive'. Y tambien muestra el concepcion de que el presente es mejor que el futuro con 'mas valia un toma que dos te dare.' Segundo, la relacion humana en la sociedad: se ve de vez en caundo una tendencia del oportunismo sobre el estado. Esto dice que en qaquel entonces, se ocurrio frecuentemente el cambio de los estados. Estos ejemplos son 'Juntate a los buenos y seras uno de ellos,' y' Haceos miel y paraos, han moscas,' etc. Tercero, la idea igualitaria de la persona: significa no solo la igualdad con Dios, sino la con reyes. Estos son: 'No ocupa mas pies de tierra el cuerpo del papa que el del sacristan' y 'Al dejar este mundo y meternos la tierra adentro, por tan estrecha senda va el principe como el jornalero'. En conclusion, parece que Don Quijote tiene mas problemas sociales que las cosas individuales. Por esta razon, para solucionar estas problemas, este protagonista que se describe como un idealista mueve continudamente contra la realidad com9o un revolucionario. Al contrario, Sancho Panza se preocapa de sus propios asuntos. Y en vez de combatir contra la situacion real, el quiere ser adoptado a la realidad como un realista.

      • KCI등재후보

        초등학교 과학 수업에서 개념도 활용의 효과

        강석진,이유영,고한중,전경문,노태희 한국초등과학교육학회 2004 초등과학교육 Vol.23 No.1

        In this study, we investigated the effects of using concept mapping as an instructional tool on 4th graders' achievement, science learning motivation, and attitude toward science classes. T재 classes (38 students) from an elementary school were respectively assigned to a control group and a treatment group. Students were taught about "expansion of matter by heat" and "heat transfer". These topics were chosen because they require students to understand more concepts as well as relationships among them. A science learning motivation test and an attitude toward science classes test were administered as pretests. A researcher-made achievement test, the science learning motivation test, and the attitude toward science classes test were administered as posttests. The results indicated that using concept mapping in 4th-grade science classes was not significantly effective in improving students' achievement though a statistically significant positive effect was found in the subcategory of knowledge. No statistically significant effect of using concept mapping was found in the scores of the science learning motivation test and the attitude toward science classes test. Educational implications are discussed.

      • Los de abajo에 나타난 民衆意識

        姜泰鎭 대구효성가톨릭대학교 1985 연구논문집 Vol.31 No.1

        Es muy raro a nosotros la literatura revolucionaria,un genero liteario queresulto como n producto secundario de la Revolucion mexicana. Por esta razon, este genero es lo particular de Mexico que tiene las caracteristicas populares. Esta literatura que se comenzo en forma de poesias o canciones, durante la Revolucion que dro desde 1910 hasta 1917 se ha desarrollado a la novela revol-ucionaria. Como los representantes de los movelistas revolucionarios, se podrian mencionar Gregorio Lopez y Fuentes, y Mariano Azuela. Especialmente, este tomo parte actuando de medico en la Revolucion como un miembro de la partida de villa. Durante este periodo, ancio en base de la propoa experiencia del autor "Los de Abajo"que se considera como la esencia de la novela revolucionarea. En este estudio, vamos a observar en base de esta obra la transicion de la con-ciencia popular que se vea a traves de la Revolucion Mexicana. Generalmente la revolucion se divide en dos:la de arriba y la de abajo. En caso de la Revolcion Mexicana, esta seria la de abajo porque se desarrollo con pancho villa como la figura central quien cogio el interes de las masas popula-res. Estas masas no pusieron algun proposito a la Revolucion ni combtian paralos intereses de ellas. Estas que son ignorantes y pobres soltaron a la voragine de la Revolucion sin saber la razon del movimento de la Revolucion. Es decir, ellas se pusieron a partivipar ciegamente en el movimento. Sin embargo, e el curso revolucionario que se presenta en la obra podemos ver la voluntad que no dejaran de derribar el gobierno dictatoroal. Pero, desgraciadamente, esta volutad se veia solamente a proncipios de la Revolucion y se enfrio poco a poco a causa de la prolongacion de la Revolucion. Al fin, se aburrieron de la Revolucion y se pusieron a tener el pensamiento peligroso como "Suceda lo que suceda" sin porvenir. Esto quiere decir que la voluntad a la esperanza se convirtion en la desesperanza despues. Bajo esta situacion, el autor que fue un inteligente nos describe realmente la circunstancia de aquel entonces en "Los de Abajo" como si iluminara a las vmasas populares. Por eso, podriamos decir que nuestro autor, a traves de suobra, no solamente propone claramente el proposito de la Revolucion sino tam-bien lleva un papel de antorcha que declara un camino a las masas que estaban confudidas.

      • CaSO_4 :Mn 열발광선량계의 물리적 특성

        강영호,라병욱,최태진,김도성,도시홍 慶北大學校 物理化學硏究所 1986 硏究論文集 Vol.7 No.-

        열발광형광체는 방사선계측 및 선량측정에 널리 사용되고 있다. CaSO_4에 Mn을 활성화하여 CaSO_4 : Mn TL 시료를 직접제작하여 이의 열발광특성을 조사하였다. 측정된 CaSO_4 : Mn의 glow-curve 5℃/sec의 가온율에서 peak온도가 126℃였으며, Halperin과 Braner 및 Chen의 이론에 의하여 열발광과정의 차수와 활성화에너지를 결정하였다. 제작된 CaSO_4 : Mn의 TL 강도는 10^-2 ∼ 10^4 Rad의 ^60Co γ선에 대해 선형적인 선량의존성을 보였으며, 100시간에 50% 정도의 fading을 나타내었다. The thermoluminescent phosphors have been widely used in radiation detection and dosimetry. By adding Mn activator to CaSO_4, the CaSO_4 : Mn thermoluminescent phosphor was prepared and its characteristics was investigated. The measured glow-curve of CaSO_4 : Mn phosphor consisted of a single peak around 126℃ at the heating rate of 5℃/sec. The kinetics order of thermoluminescence process and the activation energy of electron trap was determined by analyzing the glow-curves based upon Halperin and Braner, and Chen's theories. The prepared CaSO_4 : Mn phosphor showed the linear dose response within the range of 10^-2 to 10^4 rad of gamma-ray and fading of 50% in 100 hours after irradiation at room temperature.

      • 경남 고등부 선수들의 심리적 요인 비교

        강진철,김태진 창원대학교 체육과학연구소 1998 경남 체육연구 Vol.3 No.1

        본 연구는 제78회 전국체육대회에 참가한 경남 고등부 대표선수들의 심리적 요인(경쟁상태 및 특성불안, 정신력, 주의유형)을 비교하기 위해 실시하였다. 피험자는 제78회 전국체육대회에서 농구, 하키, 수영, 조정 종목의 경남 대표선수로 참가하게 될 남녀 고등부 선수(남:40, 여:33) 총 73명 이었다. 이에 따른 검사도구로 경쟁상태불안의 측정은 Martens 등이 개발한 경쟁상태 불안 검사지(CASI-2), 정신력은 Loehr의 정신력 진단 검사지, 주의유형은 주의집중 검사지(TAIS 간편형)를 이용하였다. 측정된 자료는 심리적 요인에 따른 집단과 종목간의 평균과 표준편차를 산출하고 집단과 종목간의 유의차 검증을 위해 이원변량분석을 실시하여 다음과 같은 결론을 얻었다. 1. 집단별 경쟁상태 및 특성불안 수준은 남자부 선수들이 여자부 선수들보다 모든 요인에서 더 높게 나타났다. 경쟁상태 및 특성불안 수준의 평균차 검증을 위하여 이원변량분석을 실시한 결과 특성불안 요인에서만 통계적으로 유의한 차이가 있는 것으로 나타났다. 2. 집단별 정신력을 비교한 결과 각성조절 요인을 제외한 모든 요인에서 남자부가 여자부보다 더 높은것으로 나타났다. 하지만 남녀 모두 자신감과 각성조절, 주의조절, 시각 및 이미지 요인에서 낮은 점수를 보이는 것으로 나타났다. 3. 집단별 주의형태는 남녀 선수가 모두 NAR과 RED요인을 제외한 모든 요인에서 비효과적인 주의형태를 보이는 것으로 나타났다.

      • 자연산 및 양식산 농어의 영양성분 비교

        강동수,배태진,하봉석 여수대학교 1998 論文集 Vol.12 No.2

        The differences in the contents of nutritive components of meat were examined between wild and cultured sea bass. Total amino acid contents of the wild sea bass were higher than that of the cultured one. The main amino acids in the both sea bass were glutamic acid, aspartic acid, leucine and lysine. The wild sea bass contained higher amounts of glycine than in the cultured sea bass. Total free amino acid contents of the cultured sea bass were higher than that of the wild one. In composition of free amino acid, taurine was abundant, and glutamic acid, glycine, alanine and histidine were the major free amino acids. The contents of glycine, alanine and histidine in the wild fish were higher than those in the cultured one, while the content of taurine was lower. In the contents of nucleotides and their related compounds, IMP was dominant, and followed ADP, AMP, in order. The contents of nucleotides and their related compounds in the cultured sea bass were markedly lower than that of the wild sea bass. In fatty acid composition, C16:0, C18:1, C22:6, C16:1 and C20:5 fatty acids were abundant. The wild sea bass showed higher levels in C16:1 and C18:1 fatty acids than the cultured sea bass, while the cultured sea bass contained much amont of C22:6 fatty acid.

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