• 농약과학회지
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• 제19권1호
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• pp.47-53
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• 2015

딸기에는 여러 가지 병이 발생하여 경제적으로 막대한 손실을 유발하며 많은 양의 농약이 사용되고 있는 실정이다. 최근 유기농산물과 식품안전성에 관한 소비자의 관심이 증가함에 따라 화학농약 대체제에 의한 병해 방제법 개발이 다각적으로 시도되고 있다. 본 연구에서는 광범위 소독제로 사용하고 있는 NaDCC의 딸기 주요 병원균(딸기 시들음병, 딸기 탄저병, 딸기 역병 그리고 딸기 세균성모무늬병)에 대한 항균활성 및 방제효과를 검증하고, 친환경제제로의 가능성을 확인하고자 수행되었다. NaDCC는 150~300 ppm 농도로 처리했을 때 병원진균의 균사생장을 효과적으로 억제하였고, 포자 발아율도 68% 이상 경감시키는 것으로 조사되었다. NaDCC는 딸기 세균성모무늬 병원균에 대하여서도 우수한 방제효과를 나타내었는데, 포장조건에서 딸기 세균성 모무늬병의 발생을 50% 감소시키는 것으로 나타났다. 이상의 결과를 토대로 NADCC는 딸기 병 방제용 방제제 후보물질로 사용될 수 있을 것으로 생각되었다.

• 한국도서관정보학회지
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• 제15권
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• pp.25-77
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• 1988

A Library is the fundamental character of culture in a country and it is also a barometer of culture in its community. Every cultural reality, however, can hardly come to fruition in a short time and so, it will be effected through a long time and tradition. This study aims at catching up how the above-mentioned public libraries have an influence on culture of its community people. For this purpose, the actual conditions of the public libraries have been investigated and analyzed and as a result of it, the problems have been reilluminated from the nation-wide point of view. And in the new changes, developing improvement measures have been tried to find. How to study was on the basis of the actual materials of the on the-spot survey, the interviews with the working officials and the response by way of questionnaire. Summing up the investigated and analyzed contents are as followings. In the above mentioned province, therefore, number of the public libraries are very limited compared with number of the people. And so, it is very essential to increase the public libraries in the province. In terms of the actual conditions, the public libraries lags far behind the other provinces in Korea from this library field. The present chronic conditions are the budgetary deficit, the collections insufficient to the legal minimal standards, the lack of professional librarians ignorance of the people and library managements by unprofessionals, etc.. This hinders the progress of the public libraries and to seculate them from the people. The improvements and the solutions to the above-mentioned problems are as follows. 1. To recruit the personnel sufficient to the legal standards and to reorganize the offices and to turn upward the highest class of librarian's position above the 4th class. 2. To secure collections sufficient to the legal standards and to strang then the extension services. 3. To organize the council composed of the chief librarians of the public libraries including the working chiefs in the province and to develop the works-in-hand of the libraries from the level of decision-making. 4. To organize the librarian training group and to study the working problems and to seek the qualified improvement of librarians. 5. The management of the public libraries in the province are, at present, der the Ministry of Education and the local government takes the financial power. So both should be shortly unified. 6. To do regularly the course of how to use library materials for the community people and to seek the inducement measures for the people through the various cultural events. 7. The public libraries organize the mutual cooperation networks and to seek the system automatized plans of free use of library materials and every library works. 8. To enlarge book mobile system actively and to infiltrate into the daily living of people deeply. Finally, what the present writer would like to speak to the chief librarians of the public libraries the human aspects of librarians should not be ignored no mater how excellent a library organization may be. In addition to this, the present writter is sure that the far-reached future of our library organization will depend on the librarians.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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• pp.65-65
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• 2002

In remote sensing, images are acquired over the same area by sensors of different spectral ranges (from the visible to the microwave) and/or with different number, position, and width of spectral bands. These images are generally partially redundant, as they represent the same scene, and partially complementary. For many applications of image classification, the information provided by a single sensor is often incomplete or imprecise resulting in misclassification. Fusion with redundant data can draw more consistent inferences for the interpretation of the scene, and can then improve classification accuracy. The common approach to the classification of multisensor data as a data fusion scheme at pixel level is to concatenate the data into one vector as if they were measurements from a single sensor. The multiband data acquired by a single multispectral sensor or by two or more different sensors are not completely independent, and a certain degree of informative overlap may exist between the observation spaces of the different bands. This dependence may make the data less informative and should be properly modeled in the analysis so that its effect can be eliminated. For modeling and eliminating the effect of such dependence, this study employs a strategy using self and conditional information variation measures. The self information variation reflects the self certainty of the individual bands, while the conditional information variation reflects the degree of dependence of the different bands. One data set might be very less reliable than others in the analysis and even exacerbate the classification results. The unreliable data set should be excluded in the analysis. To account for this, the self information variation is utilized to measure the degrees of reliability. The team of positively dependent bands can gather more information jointly than the team of independent ones. But, when bands are negatively dependent, the combined analysis of these bands may give worse information. Using the conditional information variation measure, the multiband data are split into two or more subsets according the dependence between the bands. Each subsets are classified separately, and a data fusion scheme at decision level is applied to integrate the individual classification results. In this study. a two-level algorithm using hierarchical clustering procedure is used for unsupervised image classification. Hierarchical clustering algorithm is based on similarity measures between all pairs of candidates being considered for merging. In the first level, the image is partitioned as any number of regions which are sets of spatially contiguous pixels so that no union of adjacent regions is statistically uniform. The regions resulted from the low level are clustered into a parsimonious number of groups according to their statistical characteristics. The algorithm has been applied to satellite multispectral data and airbone SAR data.

• 식물분류학회지
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• 제42권3호
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• pp.222-246
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• 2012

이 연구는 세계 39개 생물다양성 hot spot중에 하나인 인도 동부 히말라야 상부 Siang 지역의 식물상을 4년 동안 조사한 결과물이다. 이 지역의 식생에 대한 분석결과와 함께 조사된 총 1,003분류군, 110과, 529속, 994종, 1아종 그리고 8변종의 피자식물 목록을 첨부하였으며 1신종, 3미기록종 및 82특산종을 포함하고 있다. 초본과 관목의 다양성이 교목보다는 높게 나타났으며 과별로는 벼과, 콩과 그리고 난과 순으로 다양성이 우세한 것으로 조사되었다. 이 지역의 절멸위기에 처한 종들을 보고함과 동시에 급속한 도시화와 화전은 자연식생의 직접적인 절멸을 가속화하고 있어 이 지역의 자연유산을 보호하고 보존하는 방법을 찾는데 도움이 되기를 제안한다.

• 한국도로학회논문집
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• 제13권1호
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• pp.59-67
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• 2011

신호교차로 구간의 위험원인에 대해서 사전에 사고예방을 강구한다면 사고건수를 줄이는데 도움이 될 것이다. 특히, 신호교차로에서 기하구조 개선과 같이 많은 예산을 투자하지 않더라도 사고감소효과를 낼 수 있다. PG(Positive Guidance) 기법은 신호교차로에서 도로안전시설물의 개선을 통하여 교통사고를 예방할 수 있다. 본 연구에서는 과속으로 인해서 사고위험성이 높은 신호교차로 1곳을 선정하여 대상지점의 문제점 분석 및 개선방안을 도출하였다. 선정된 구간은 시뮬레이터를 활용하여 대상구간의 현황을 그대로 재현하여 실험하였다. 이를 토대로 PG개선 전 후의 지점별 속도효과가 있는지를 검증하기 위해서 t 검증을 실시하였다. 그 결과, 개선 후에는 운전자가 정보를 충분히 제공받아서 신호교차로 부근에서 속도를 감속하는 것으로 나타났다. 향후 본 연구를 토대로, PG기법을 활용할 수 있는 일부 신호교차로에 대해서 많은 비용을 투자하지 않더라도 저비용으로 교통사고 감소 효과를 거둘 수 있다.

• 농업과학연구
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• 제15권2호
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• pp.164-173
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• 1988

This study is to analyse marketing and industrial structure of meat processing industry and to examine it's current situation related to agriculture. For this purpose 1. This paper surveys the history of meat processing industry, and analyses current situation of meat processing industry, based upon economic statistic data. 2. For the research of marketing structure of meat processing products, this paper not only ciassifies into three catagories; the supply of raw meat, main marketing organization, and path, but measures magnitude of Marketing Bill and Farmer's Share practically through statistic data and an on-the-spot survey. 3. This study also attempt to explain the relation of meat processing industry and the other industry and role of meat processing industry is Korean economy by the use of input-output table. The results of the study are as follows; 1. The meat processing industry in Korea produces low quality, and expensive raw meat with limited quality, inefficiency of marketing structure, and unrelated livestock and meat processing industry. 2. Korea market structure of meat processing products has been changed into oligopoly from monopoly by a new corporation entered into monopoly and the size of meat processing market firms has been normalized. 3. Meat processing industry is very important considering with its high back-linkage-effect. In order to develop meat processing industry and marketing, it is essential that operation of intergrated meat market center, meat market center should be efficiently operated. The efficient utilization of domestic resource for raw meat and development of processing technique have to be required, by means of the governmental support.

• 비파괴검사학회지
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• 제33권2호
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• pp.160-164
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• 2013

레이저 초음파검사 장치는 레이저 빔을 이용하여 초음파 신호를 발생시키고 측정하는 비접촉식 결함 검사 장치이다. 이 장치는 펄스 레이저 빔을 이용하여 광대역 주파수 범위를 갖는 초음파 신호를 발생시키고 작은 점으로 집속된 레이저 빔을 이용하여 초음파 신호를 측정하므로 우수한 측정 분해능을 제공한다. 본 연구에서는 이종금속 접촉부식(갈바닉 부식) 현상을 레이저를 이용한 비파괴, 비접촉 방법으로 측정하였다. 부식된 부분에 이물질이 혼합되는 경우를 가정하고, 레이저 초음파 실험을 진행하였다. 시편의 뒷면에서 펄스 레이저로 초음파를 발생시키고, 같은 위치의 앞면에서 CW 레이저와 CFPI를 이용하여 초음파 신호를 획득하였다. 이물질이 존재하는 부분의 초음파 신호 특성을 분석하여 이물질의 위치 및 크기를 측정하였다.

• 가족자원경영과 정책
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• 제18권1호
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• pp.141-162
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• 2014

The purpose of this research is to suggest some measures to improve policy issues by analyzing policy related to a child care service program in the community. Gilbert and Terrell's social policy analysis framework is used to analyze an after-school care service program for elementary school children. Furthermore, the Elementary Care Class(including the After-school Program), Youth After-school Academy, and Community Child Center, referred to as public care services, are employed to analyze community care service programs for children. The Elementary Care Class, Youth After-school Academy and Community Child Center are very similar in terms of the contents and application of the care service program for children, and mainly serve children in low-income groups. In addition, although user overlapping is an inevitable problem because the operating time of the Elementary Care Class and After-school Program coincides with that of the Youth After-school Academy and Community Child Center, it is structurally very hard to adjust the content of service, operating time, and so on because of differences in the delivery system for each program. Therefore, it is necessary to generate a unified delivery system to manage after-school care service programs for children and create a new special control tower to solve these problems. Furthermore, it is needed to extend the services to children from general double-income family, which is a blind spot of the care service.

• Architectural research
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• 제4권1호
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• pp.7-16
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• 2002

In order to examine theoretical underpinnings of preference for built forms, 129 subjects are asked to rate a series of 9 slides of residential houses depicting a wide range of architectural styles on a 5 point scale, for coherence, complexity, excitement, familiarity, and natural harmony, respectively. Based on Lee's (2002a, 2002b) two previous studies addressing the issue of aesthetic beauty evaluation for man-made creatures (e.g., residential housing scenes), this study summarizes several meaningful findings. As reported by all the subjects, first, both "desire to visit" and "desire to live in" turned out to be a good predictor of preference as the two measures are highly correlated in statistically significant levels (99.9%). People who desire to visit a spot are more likely to desire to live in it. Second, Pearson's correlations showed that coherence is the opposite end of complexity. The more likely a housing setting is hanging together, the less likely it looks to be complex. Overall, though, it is not clear that the two variables work directly in that way, as weighted on preference ratings. That is, coherence and complexity are likely to be totally two independent systems that affect the ratings of preference. Third, both excitement and environmental sensitivity (e.g., harmony of a house with its surrounding nature) most highly account for the preference for various housing scenes, while familiarity has only a little effect on preference ratings. Possibly, people like or dislike a visual thing, no matter how much they are familiar with it. Finally, this study suggested that design professionals could communicate effectively with their clients if sets of visual standards as an appropriate communication tool for better design are properly established.

• 한국산림과학회지
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• 제83권3호
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• pp.400-409
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• 1994

본 연구는 다양한 유형의 수림대가 갖는 소음감쇄효과를 측정하기 위하여 수행되었다. 차량통행이 빈번한 도로변 6개 조사지를 대상으로 측정한 결과 수림대의 소음감쇄효과를 확인하였다. 도로로부터 1m와 10m 상의 최대음압도의 차이는 10-15dB로 수림대의 속성에 따라 다소간의 차이를 보이고 있다. 초지를 대조구로 비교하였을 때 조사지 중에서 음압도의 최대차이는 밀생한 관목림에서 보이는 5dB 수준이다. 도로로부터 상향 경사면에 위치하는 조사지의 경우에는 오히려 대조구보다 소음감쇄 정도가 미미하였다. 연구를 통하여 분석된 제한된 정보와 국내외의 이전 연구결과를 토대로 단층 건물 주변의 10m 폭 방음수림대의 적절한 유형을 제시한다면 최소 3m 폭, 2m 수고의 밀식된 관목수림대와 앞뒤로 각각 3m 폭의 부드러운 초지의 조성을 들 수 있다. 위의 처방은 본 연구의 결과로 유추하여 볼 때 소음원인으로부터 발생되는 음압도를 15dB 이상 감소시킬 수 있을 것으로 판단된다.