• 제목/요약/키워드: agricultural classification system

검색결과 195건 처리시간 0.024초

Australian Soil Classification: an Review

  • Hyun, Byung-Keun;Sonn, Yeon-Kyu;Cho, Hyun-Jun;Jung, Kangho;Choi, Jung-won;Jung, Sug-Jae;Kwak, Woo-Ri;Kim, Woon-Sun;Hong, Se-Eun
    • 한국토양비료학회지
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    • 제49권1호
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    • pp.93-114
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    • 2016
  • As a means of improving Korean Soil Classification System, we have reviewed Australian Soil Classification System by comparing Soil Taxonomy and FAO/WRB Classification System. Australian Soil Classification System is composed of 14 of Order, 87 of Sub-order, 556 of Great-group, 2,451 of Sub-group, and 7,276 of Family. Interestingly, soil order has the Anthroposols which is not classified with Soil Taxonomy, and the classification for some of soils is based on soil texture abruption horizon and soil structure. Seven of 14 soil orders are classified with an old version based on soil color rather than morphological characteristics. The distribution scale of Australian soil order is the largest in Tenosols, and followed by Kandosols, Rudosols, Sodosols and Vertisols in Australia.

Classification Index and Grade Levels for Energy Efficiency Classification of Agricultural Heaters in Korea

  • Shin, Chang Seop;Jang, Ji Hoon;Kim, Young Tae;Kim, Kyeong Uk
    • Journal of Biosystems Engineering
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    • 제38권4호
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    • pp.264-269
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    • 2013
  • Purpose: This study was carried out to develop a classification index and grade levels to rate agricultural heaters for energy efficiency classification. Methods: The classification index was developed mainly by taking simplicity of calculation and easy access to relevant data into consideration. The grade levels were developed on the basis of a 5-grade classification system in which graded heaters are to be normally distributed over the grades. The value of each grade level were determined in terms of the classification index values calculated using the published performance data of agricultural heaters tested at the FACT in Korea over the past 12 years. Results: The thermal efficiency of agricultural heaters based on the enthalpy method was proposed as a reasonable classification index. The grade levels were proposed in equation form for three types of agricultural heaters: fossil fuel heaters, wood pellet heaters and wood pellet boilers. A reasonable energy efficiency classification of agricultural heaters could be performed using the proposed classification index and grade levels. Conclusions: It is expected that energy saving programs will be extended to agricultural machines in the near future. The classification index and grade levels to rate agricultural heaters for energy efficiency classification were developed and proposed for such near future to come.

농업건축물 분류체계 현황 및 문제점 파악에 관한 연구 (A Study on the Current Status and the Problem of Classification System in Agricultural Facilities)

  • 최오영;김태희;김재엽;김광희;조형근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2009년도 춘계 학술논문 발표대회 학계
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    • pp.253-257
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    • 2009
  • General technique and management technology of agriculture have development in every year to ensure the competitiveness of agriculture. Accordingly, Interested in using information systems management technology is improving. For information system, the first system of rural buildings category should be established. Classification system is set up through each specific code. and it takes advantage of the information system is to achieve the computerization of agricultural society. Therefore, in this study construction information classification system, quantity of output category, got to the standard classification system architecture, apply to agricultural buildings to review the situation and saw a problem. The result, it is the complexity and broad scope, and it is set to inappropriate setting of the Category item.

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Soil Classification of Anthropogenic Soils in a Remodeled Area Using Soil Taxonomy and World Reference Base for Soil Resources

  • Lee, Seung-Been;Chun, Hyen-Chung;Cho, Hyun-Jun;Hyun, Byung-Keun;Song, Kwan-Cheol;Zhang, Yong-Seon;Sonn, Yeon-Kyu;Park, Chan-Won
    • 한국토양비료학회지
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    • 제46권6호
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    • pp.536-541
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    • 2013
  • In Soil Taxonomy system, anthropogenic soils are still classified as Entisols since the International Classification Committee for Anthropogenic Soils is in the process of classifying anthropogenic soils as new orders. In reality, it is difficult to characterize anthropogenic soils because Soil Taxonomy (ST) system does not distinguish between natural and anthropogenic Entisols. On the other hand, World Reference Base for soil resources (WRB) considers human impacts on soils and contains an independent category of anthropogenic soils, which makes easier to understand anthropogenic soil characteristics than Soil Taxonomy system. A remodeled paddy field (Gasan) was selected to classify by ST and WRB. Soil samples were taken to analyze chemical and physical properties. Based on the results of the analyses, the ST system classified Gasan as coarse loamy, mixed, mesic, Aquic Udorthents while the WRB did as Stagnic Urbic Technosols (Oxyaquic, Arenic). As a conclusion, the WRB classification information of the anthropogenic provides more detail characteristics of the anthropogenic soils.

A study on autonomy level classification for self-propelled agricultural machines

  • Nam, Kyu-Chul;Kim, Yong-Joo;Kim, Hak-Jin;Jeon, Chan-Woo;Kim, Wan-Soo
    • 농업과학연구
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    • 제48권3호
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    • pp.617-627
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    • 2021
  • In the field of on-road motor vehicles, the level for autonomous driving technology is defined according to J3016, proposed by Society of Automotive Engineers (SAE) International. However, in the field of agricultural machinery, different standards are applied by country and manufacturer, without a standardized classification for autonomous driving technology which makes it difficult to clearly define and accurately evaluate the autonomous driving technology, for agricultural machinery. In this study, a method to classify the autonomy levels for autonomous agricultural machinery (ALAAM) is proposed by modifying the SAE International J3016 to better characterize various agricultural operations such as tillage, spraying and harvesting. The ALAAM was classified into 6 levels from 0 (manual) to 5 (full automation) depending on the status of operator and autonomous system interventions for each item related to the automation of agricultural tasks such as straight-curve path driving, path-implement operation, operation-environmental awareness, error response, and task area planning. The core of the ALAAM classification is based on the relative roles between the operator and autonomous system for the automation of agricultural machines. The proposed ALAAM is expected to promote the establishment of a standard to classify the autonomous driving levels of self-propelled agricultural machinery.

농학분야의 문헌분류 체계에 관한 연구 (A Study on the Classification of Agriculture)

  • 김정현;이명규
    • 한국도서관정보학회지
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    • 제34권1호
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    • pp.239-260
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    • 2003
  • 이 연구는 농학분야의 정보자료를 효율적으로 관리하기 위한 새로운 문헌분류표의 모형을 제시하기 위하여 시도된 것이다. 이를 위해 먼저 농학분야의 학문적 정의와 범위, 체계에 대하여 고찰하였고, 현재 사용되고 있는 KDC, DDC, UDC, NDC 등의 문헌분류법에서 농학분야 주제를 전개하고 있는 강목표에 대하여 비교 분석하였고 NAL의 AGRICOLA SCC를 살펴보았다. 그리고 이를 토대로 농학분야의 새로운 문헌분류표의 강목을 설정하여 전개하였다. 새로운 강목분류표의 전개는 농업과 관련한 인문사회학, 식물관련 농업, 동물관련 농업, 인간과의 관계성, 농업관련 보조분야 순으로 전개하였고, 강목표는 23개의 항목으로 설정되었다.

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Classification of Anthropogenic Soil "Ingwan" Series

  • Sonn, Yeon-Kyu;Cho, Hyun-Jun;Hyun, Byung-Keun;Shin, Kook-Sik
    • 한국토양비료학회지
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    • 제48권5호
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    • pp.535-541
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    • 2015
  • Korean soil classification system is based on the US soil taxonomy. This study aimed to understand and inform the soil taxonomy of 2010 and 2014 US soil classification systems. Ingwan series belonged to anthropogenic soil was classified to coarse loamy over sandy, mixed, mesic family of Aquic Udorthents based on the soil taxonomy of 2010 and coarse loamy over sandy, mixed, mesic family of Anthroportic Udorthents based on the soil taxonomy of 2014. An anthropogenic soil is increasing in Korea. Considering the domestic relationship depending on US soil taxonomy, it is important to be well-informed of the taxonomy and apply the updated taxonomy system properly to the domestic soil classification. This study of defining the anthropogenic soil will provide useful information on soil management and its utilization.

농촌마을 수준에서의 어메니티 강화 및 저해요소 항목체계 구축 (A Classification System of Amenity / Disamenity Elements in Rural Villages)

  • 임창수;최수명;김영주
    • 농촌계획
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    • 제12권4호
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    • pp.89-97
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    • 2006
  • Usually, amenity elements coexist with disamenity elements in rural villages. Through the literature reviews and group discussion of participant research staffs in this study, a tentative classification system of amenity and disamenity elements was pro-posed with 4-tier hierachial order; for amenity, 3-7-29-76(numbers of the high, medium to low categories and elements) and 3-6-16-32 for disamenity. finally, through case studies of 4 sample villages representing the flat-plan, upland, seashore and periurban rural areas, the applicability of this classification system was verified.

Nondestructive Internal Defects Evaluation for Pear Using NIR/VIS Transmittance Spectroscopy

  • Ryu, D.S.;Noh, S.H.;Hwnag, H.
    • Agricultural and Biosystems Engineering
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    • 제4권1호
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    • pp.1-7
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    • 2003
  • Internal defects such as browning of the flesh and blackening and rot of the ovary of pear can be easily developed because of the inadequate environmental conditions during the storage and distribution of fruit. The quality assurance system for the agricultural product is to be settled in Korea. All defected agricultural products should be excluded prior to the distribution to enhance the commercial values. However, early stage on-line defect detection of agricultural product is very difficult and even more difficult in a case of the internal defects. The goal of this research is to develop a system that can detect and classify internal defects of agricultural produce on-line using VIS/NIR transmittance spectroscopy. And Shingo pear, which is one of the famous species of Korean pear, was used for the experiment. Soft independence modeling of class analogy (SIMCA) algorithm was employed to analyze the transmittance spectroscopic data qualitatively. On-line classification system was constructed and classification model was developed and validated. As a result, the correct classification rate (CCR) using the developed classification model was 96.1 %.

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IKONOS 영상자료를 이용한 농업관련 토지피복 분류기준 설정 연구 (Standardizing Agriculture-related Land Cover Classification Scheme Using IKONOS Satellite Imagery)

  • 홍성민;정인균;김성준
    • 한국GIS학회:학술대회논문집
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    • 한국GIS학회 2004년도 GIS/RS 공동 춘계학술대회 논문집
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    • pp.261-265
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    • 2004
  • The purpose of this study is to present a standardized scheme for providing agriculture-related information at various spatial resolutions of satellite images including Landsat+ETM, KOMPSAT-1 EOC, ASTER VNIR, and IKONOS panchromatic and multi-spectral images. The satellite images were interpreted especially for identifying agricultural areas, crop types, agricultural facilities and structures. The results were compared with the land cover/land use classification system suggested by Ministry of Construction & Transportation based on NGIS (National Geographic Information System) and Ministry of Environment based on satellite remote sensing data. As a result, high-resolution agricultural land cover map from IKONOS imageries was made out. The results by IKONOS image will be provided to KOMPSAT-2 project for agricultural application.

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