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      • 韓國에 있어서 氣候循環에 關한 硏究

        宋泰鏞 경북대학교 교육대학원 1980 논문집 Vol.12 No.-

        In this paper, weather elements (mean air temperature and precipitation of monthly normal values) are used as a bases of climatic classification. Fig. 2-13 show monthly climatic zones of Korea from January to December, using the combination of precipitation and temperature given in Table 1. I have attempted to clarify yearly concentration and distribution of changing frequancy of climatic type and that of climatic region over Korean peninsular in four section A.B.C and D divided by intersecting of mean temperature and mean precipitation on the hythergraph (Fig.1). The conclusion of this study may be summarized as follows, ⑴ There are 18 climatic types on the hythergraph but in Korean peninsular we have 11 types, two thirds of all types. ⑵ Yearly march of the climatic types is as follows, In spring (April, May) and fall (September, October) the number of the climatic types is decreased comparing to other seasons. In summer (June, July, August) the number of the climatic types is increased a little. In winter (from November to March), both in November(the first month of the winter) and in March (the last month of the winter) the north area or the peninsular has more types than other area. but in January (the month of the lowest temperature in the year) the southern area has more types than other areas. ⑶ The number of the climatic types is 3 or less in spring, summer, and autum. In the changing months of the monsoon (April, May, October and November) the number of climatic region is more than that of the climatic types compare to other months except January and February. Especially in January-the month of the lowest temperature in a year-the number of the climatic types and the clmatic reigon is the most of the year and the number is 6 and 9 respectively. ⑷ The typical climatic types of the year, divided by the yearly mean values of the temperature and the precipitation on the hythergraph are cool humidity in the north area and mild humidity in the south area by connecting the city of Sinmack at west coast and the city of Hamhung at east coast. Also, the two types-cool humidity and mild humidity are of the highest changing frequency of the same climatic types. ⑸ On the hythergraphy, you can see that the rising speed of the temperature in spring is high and the precipitation is more than the mean values of the precipitation at the northern inland, south-east coast, and southern coast compare to other areas of the Korean penisnular. In May and October-the changing month of the monsoon, the temperature is higher and the air is drier than the mean values of the year. ⑹ The changing frequency of the climatic types is more in the high latitude than in the low latitude and the southern coast. ⑺ Like the above explanation, the number of the climatic types are on the whole more in the north than in the south. In the north area of the same latitude, the number is more in the east coast than in the west coast and in the south area of the midland the number is more in the west coast than in the east coast.

      • 嶺南地方에 있어서의 農作物 分布와 氣候區와의 關係에 關한 硏究

        宋泰鏞 慶北大學校 師範大學 1973 敎育硏究誌 Vol.15 No.-

        This study puts the purpose to clarify the correlation of crop distribution and climatic conditions in Youngnam province. The study was approached by quantitative method through an analysis of 1960 agricultural census data, and by analysis of responses and attitudes of farmers on the correlation. The ratio of cropping area of each crop to total cropping area by Gun(unit area) was presented to the location quotient of crop distribution (Y) for comparison of spatical variation. Two climatic elements, moisture ratio ((p-e)/e) and hours of sunshine which should seem having most close relation with crop distribution were chosen and presented to the location quotient of moisture ratio (X_1) and that of hours of sunshine (X_2) as the comparative criteria to Y. Thus by calculating the coefficient of correlation of Y=f(X_2X_2) the former method, quantitative approach, is to be applicable. The later method, analysing the responses and attitudes of farmers, was possible to apply by collecting the responses of questionnaires from the sample farmers. A sample farm was selected by Myun and questionnaire was sent. Really 450 questionnaires were sent but 325 which occupy 72.2% of the totality, were responsed. The correlation of crops distribution and climatic conditions appear considerable differences by kind of crop. Arranging the crops in order by degrees of coefficient of correlation, as follows. Millet→apple→radish→rice→barley→soy bean→cotton→sweet potato Former two crops are in correlation of high degree respectively, and later two, in that of low degree. Correlation of medium degree can find in case of rice, barley, soy bean and radish that are most important crops not only in Youngnam province but also in the country. In general the correlation of crop distribution and climatic conditions in Youngnam seems higher than that of the country average, likewises the correlation of crop distribution and moisture ratio (X_1) or precipitation is higher than that of crop distribution and hours of sunshine (X_2) or temperature. It is apparent that farmers are recognising climate as the first ranking factor among various factors affecting crop distribution or production, and therefore they are very sensitive to variation of climatic and weather conditions. Especially this is true in rice culture which is dominant agricultural pattern in Youngnam and the country. Finally it is notable fact that Youngnam province has considerably large proportion of climatically maladjusted area especially deficient area in precipitation for rice culture.

      • KCI등재

        안개영상의 의미론적 분할 및 안개제거를 위한 심층 멀티태스크 네트워크

        송태용,장현성,하남구,연윤모,권구용,손광훈 한국멀티미디어학회 2019 멀티미디어학회논문지 Vol.22 No.9

        Image semantic segmentation and dehazing are key tasks in the computer vision. In recent years, researches in both tasks have achieved substantial improvements in performance with the development of Convolutional Neural Network (CNN). However, most of the previous works for semantic segmentation assume the images are captured in clear weather and show degraded performance under hazy images with low contrast and faded color. Meanwhile, dehazing aims to recover clear image given observed hazy image, which is an ill-posed problem and can be alleviated with additional information about the image. In this work, we propose a deep multi-task network for simultaneous semantic segmentation and dehazing. The proposed network takes single haze image as input and predicts dense semantic segmentation map and clear image. The visual information getting refined during the dehazing process can help the recognition task of semantic segmentation. On the other hand, semantic features obtained during the semantic segmentation process can provide cues for color priors for objects, which can help dehazing process. Experimental results demonstrate the effectiveness of the proposed multi-task approach, showing improved performance compared to the separate networks.

      • KCI등재
      • 1976-77年의 釜山地方 冬季 異常寒波에 關하여

        宋泰鏞,文勝義,諸榮滿 慶北大學校 師範大學 1980 敎育硏究誌 Vol.22 No.-

        The abnormal cold waves of 1976-77 winter which caused lots of damages to overall of the Korean Peninsula were analyzed statistically and synoptically using the temperature data (1904-77) at Busan Station. The statistical results of this cold waves are summarized as follows: 1. The average temperature of January 1977 is -1.0℃, the rank is the 5th. The average minimum temperature of January 1977 is -4.5℃, the rank is only the 7th. 2. The number of successive cold days of this cold waves, namely, the number of days which lasted successively below 0℃ in daily average temperature, was the longest one (a total of 30 days) since 1905. The number of days which lasted below -5.0℃ in the average minimum temperature was also the longest one (20 days). 3. The temperature oscillation of more than 20.0℃ was respectively onetime in other cold years, on the other hand, 4 times in this winter, and the most marked oscillation was 27.2℃ in 3 days (February, 13-16, 1977). The results of synoptic analysis are as follows: 1. The influence of Siberian High during this cold period was greater than that of any other years, and also Aleutian Low was developed intensively, so thewest-high and east-low pressure system lasted for a ling time. 2. The pressure distribution of the upper level was similar to that of 1963 which resembles Baur Model C. So, the upper level temperature was very cold. The cause of this record-breaking cold waves was regarded as the southward movement of cold vortex from the Arctic region to the middle latitudes.

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