• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.348-348
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• 2017

This experiment was conducted to investigate the aspect of tiller occurrence, growth and yield of sorghum according to planting density and sowing date. The subject of this experiment is to supply basic data to inhibit non-productive tillers uneconomical and cumbersome for mechanical harvesting. Also another subject was to evaluate optimum planting density and sowing date in central district area. Total number of tillers was more in 80cm ridge than 60cm ridge and it was increased as the planting distance was wider from 15cm to 30cm on the each ridge. Ratio of effective tillers was higher in 60cm ridge than 80cm ridge and it was decreased as planting distance was wider from 15cm to 30cm. The lower the planting density, the more increased total number of tillers, whereas effective tillers were decreased as planting density was high. Average of total number of tillers of three varieties was higher in sowing date of 2 May (1st sowing date), whereas ratio of effective tillers was the highest in sowing date of 23 May (2nd sowing date). Hwanggeumchal showed the highest total number of tillers (1.2 tillers), while Moktaksusu had the lowest total number of tillers (0.8 tillers) among three varieties. There were no significant difference between planting density and days to heading and ripening date from seeding. Culm length increased as planting density was high, but ear length, grains per ear and 1000 grain weight were decreased on the other hand. The highest yield of sorghum per 10a was obtained from $60{\times}20cm$ planting density among 6 planting densities.

• 한국문헌정보학회지
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• 제47권2호
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• pp.359-376
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• 2013

이 연구는 KDC, DDC, NDC와 한국연구재단의 학술연구분야분류표와 국가과학기술표준분류표와의 비교를 바탕으로 KDC 제5판에서 540과 610에 양분되어 있는 건축공학과 건축술을 통합하는 개선안을 제시하였다. 이 연구에서는 문헌분류 연구자와 건축학 연구자의 공동연구를 통해, 610에 있던 건축술을 540에 통합하고, 540의 표목을 '건축공학'에서 '건축학'으로 변경하도록 제안하고 있다. 추가로 540.1 건축계획 및 관련세목, 543.1 구조역학, 546.1 건축환경 및 관련세목의 신설을 제안하고 있다.

• 한국문헌정보학회지
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• 제42권4호
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• pp.291-310
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• 2008

미국 의회도서관이 독도(Tok Island)에 관한 주제어를 리앙쿠르 록스(Liancourt Rocks)로 변경추진에 따른 논란을 계기로 독도의 일반적인 현황과 표기 문제 및 국제적으로 사용되고 있는 표기 현황을 검토하였다. 이 검토를 바탕으로 문헌정보학 자료조직 분야에서 KDC, LCC, NDC의 독도표기 현황을 비교, 분석하고 향후 도서관계의 역할을 모색해보고자 하였다.

• 정보관리학회지
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• 제14권1호
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• pp.107-124
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• 1997

다의성이 있는 용어를 색인어로 사용하게 되면 탐색자의 요구와 관계없는 주제가 검색되므로 잡음률이 높아지게 된다. 이를 방지하기 위하여 거의 모든 통제어휘시스템에서 색인어로 사용될 기입어가 다의성을 가질 때 한글, 한자, 외국어 등을 이용하여 동형이의어와 세부분야을 한정하고 있다. 그러나 여러 학문분야에 걸친 대단위 어휘사전을 구축하려고 할 때 이들을 이용하여 다의성을 해소하는 데는 미흡한 점이 많으며, 흔히 사용하고 있는 한자한정어도 많은 문제점을 안고 있다. 본 고에서는 색인어로 사용될 기입어가 다의성이 있을 때 한글 한정어를 부기하여 이들을 구별할 것을 제안한다. 한글한정어의 타당성, 사용범위, 사용원칙등에 대하여 시소러스를 중심으로 논하고 이 개념의 확대적용방안에 대하여 언급한다.

• 자동차안전학회지
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• 제13권4호
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• pp.7-13
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• 2021

This paper presents an vulnerable road user (VRU) classification and tracking algorithm using vision and LiDAR sensor fusion method for urban autonomous driving. The classification and tracking for vulnerable road users such as pedestrian, bicycle, and motorcycle are essential for autonomous driving in complex urban environments. In this paper, a real-time object image detection algorithm called Yolo and object tracking algorithm from LiDAR point cloud are fused in the high level. The proposed algorithm consists of four parts. First, the object bounding boxes on the pixel coordinate, which is obtained from YOLO, are transformed into the local coordinate of subject vehicle using the homography matrix. Second, a LiDAR point cloud is clustered based on Euclidean distance and the clusters are associated using GNN. In addition, the states of clusters including position, heading angle, velocity and acceleration information are estimated using geometric model free approach (GMFA) in real-time. Finally, the each LiDAR track is matched with a vision track using angle information of transformed vision track and assigned a classification id. The proposed fusion algorithm is evaluated via real vehicle test in the urban environment.

• 한국작물학회지
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• 제27권4호
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• pp.385-397
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• 1982

The climatic impacts have been the environmental constraints with soil characteristics to achieve self sufficiency of food production in Korea. In this paper, the distribution and appearance of impacts and the changes in climatological status due to recent trend of early transplanting of rice are widely discussed to derive some countermeasures against the impacts, being focussed on cultural A long term analysis of the climatic impact appearances of the last 74 years showed that drought, strong wind, flood, cold spell and frost were the major impacts. Before 1970's, the drought damage was the greatest among the climatic impacts; however, the expansion and improvement of irrigation and drainage system markedly decreased the damage of drought and heavy rain. The appearance of cold damage became more frequent than before due to introduction of early transplanting for more thermophilic new varieties. Tongillines which were from Indica and Japonica crosses throw more attention to cold damage for high yields to secure high temperature in heading and ripening stages and lead weakness to cold and drought damage in early growth stage after transplanting. The plants became subject to heavy rain in ripening stage also. For the countermeasures against cold damage, the rational distribution of adequate varieties according to the regional climatic conditions and planting schedule should be imposed on the cultivation. A detoured water way to increase water temperature might be suggestable in the early growth stage. Heavy application of phosphate to boost rooting and tillering also would be a nutritional control method. In the heading and ripening stages, foliar application of phosphate and additional fertilization of silicate might be considerable way of nutritional control. Since the amount of solar radiation and air temperature in dry years were high, healthy plants for high yield could be obtained; therefere, the expansion of irrigation system and development of subsurface water should be performed as one of the national development projects. To minimize the damage of strong wind and rainfall, the rational distribution of varieties with different growing periods in the area where the damage occurred habitualy should be considered with installation of wind breaks. Not only vertical windbreaks but also a horizontal wind break using a net might be a possible way to decrease the white heads in rice field by dry wind. Finally, to establish the integrated countermeasures against the climatic impacts, the detailed interpretation on the regional climatic conditions should be conducted to understand distribution and frequency of the impacts. The expansion of observation net work for agricultural meteorology and development of analysis techniques for meteorological data must be conducted in future together with the development of the new cultural techniques.

• 대한한의학방제학회지
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• 제31권2호
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• pp.81-98
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• 2023

Objectives : This study aimed to analyze the trends in research and development projects related to herbal medicine and natural products in the field of traditional Korean medicine (TKM) over the past 20 years. Methods : Research projects were identified using "Korean medicine" as the subject heading in the National Science and Technology Information Service. The included projects investigated Korean medicine, natural products, or were related to the TKM industry. Data pre-processing and network analysis were performed using Python and Networkx package, and the network was visualized using the ForceAtlas2 visualization algorithm. Results : 1. Over the study period, 4,020 projects were conducted with a research budget of KRW 835.2 billion. Seven institutions performed over 100 projects each, accounting for 2.4% of all participating institutions, and the top 10 institutions accounted for 58.9% of total projects. 2. Obesity was the most frequently mentioned disease-related keyword. Chronic or age-related diseases such as diabetes, osteoporosis, dementia, parkinson's disease, cancer, inflammation, and asthma were also frequent research topics. Clinical research, safety, and standardization were also frequently mentioned. 3. Centrality analysis found that obesity was the only disease-related keyword identified, alongside TKM-related keywords. Standardization, safety, and clinical trials were identified as central keywords. Conclusions : The study found that research projects in TKM have focused on standardizing and ensuring the safety of herbal medicine, as well as on chronic and age-related diseases. Clinical studies aimed at verifying the effectiveness of herbal medicine were also frequent. These findings can guide future research and development in herbal medicine.

• 정보관리학회지
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• 제1권1호
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• pp.112-126
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• 1984

정보가 폭증함에 따라 이용자로 하여금 필요한 정보에 접근할 수 있게 해주는 서지정보검색도구의 생산이 날로 증가되고 있다. 이용자를 위한 보다 효율적인 서지정보검색도그를 생산해낼 수 있는 개선방안을 모색해 보기 위하여 우리나라에서 주로 이용되는 7종의 서지도구의 이용상황 및 그 특성에 대한 이용자의 선호도를 조사한 결과 한 두 종류의 서지도구가 집중적으로 이용되고 있으며 이용도가 높은 서지도구일수록 불만족의 응답율이 높게 나타났다. 또 가장 많이 이용되는 4종의 서지도구의 인쇄형태가 검색효율에 미치는 영향을 조사해보기 위해 실험검색을 실시한 결과 4종의 서지도구가 공통적으로 낮은 검색율을 나타내었고 그중 정기간행물기사색인의 경우 가장 낮은 검색율을 보이고 있다. 이상의 조사 결과를 종합해 볼 때 우리나라에서 발간되는 서지자료들이 보다 사용하기 쉽고 편리한 정보검색도구로써 그 역할을 다 할 수 있으려면 광범한 이용조사를 통해 이용자의 요구를 정확히 반영할 수 있는 개선책이 시급히 요구되고 있다.

• 한국문헌정보학회지
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• 제28권
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• pp.23-70
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• 1995

This study is to survey the present book numbers used in Korean libraries. to analyze their problems. and to suggest improvement in the book numbers. As the results of the survey several suggestions are derived as follows. 1. The education to the librarians about the kinds and the application methods of the book numbers used in Korean libraries should be sufficiently offered. 2. The present book numbers used should be expanded in detail for avoiding the duplication of the call numbers. Also when book numbers are assigned. shelf list cards should be examined one by one not to give the same number. If the book numbers are overlapped in the state not to expand further. libraries should establish a detailed expansion rules according to their respective situation and maintain it consistently. However, it is impossible for libraries operating open stack systems to arrange books on the shelves in call number sequence, therefore libraries can solve the problems as they accept duplication cases. 3. Since the object word of main mark IS a heading In main entry, we must apply cataloging rules to it closely. 4. For expanding book numbers widely it is desirable that the subsidiary mark of the book numbers which is the most prevalent in general and will be the most preferable In the future through the survey should be added and be provided. 5. The book numbers used being changed, we are to assign new book number leaving former materials as they are at the point of adopting a new book number. So aged materials are stored in a repository or on a compact shelf in the stack, will be discarded or weeded according to subjects after a certain period of time. 6. With library automation bringing together all the books of an author in a particular subject or in a particular form and avoiding completely duplication in open stack systems are meaningless. Rather than chronological book numbers, distinguishing clearly new materials from aged materials and controlling the stack spaces mechanically and effectively, can be regarded as the most modern and future-oriented of all the book numbers.

• 패션비즈니스
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• 제12권6호
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• pp.107-123
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• 2008

The purpose of this research is to compare and analyze the brassiere patterns sold in Shanghai and Korea and to present basic materials needed in developing the brassiere patterns in Chinese adult women market. The study subject which is to find the difference in brassiere patterns of Korea and China has been selected of 3 Korean brands and 4 Chinese brands. 1. For the brassiere patterns sold in Korea, it were using the same size for the width of Hook&Eye, space between the shoulder lace on the back, slope of wing and the location of the Keeper was similar. 2. For the cup supporting base, Chinese brassiere covers the lower part of the breast and as it is not comfortable and has a phenomenon of loosening up, there were severe puckering. For issues in the wearing experiment, amendments in patterns with the cup part was required. 3. Chinese brassieres were big differences in wing angles and for Aimer, it had the steepest trend in wings and thus the wings headed down and for Gujin, as the angle of the wing was smaller than $90^{\circ}$, it was heading upward. 4. Upon comparing the patterns of the Korean and Chinese brassiere, although most of the sizes excluding the wing angle had similar sizes, there was big differences in the wing angle. The reason why the brassiere patterns sold in China had bigger wing angle was due to the fact that more Chinese women had sway back body type than the Korean women and should reflect such difference in body size into making the brassiere patterns for each women.