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      • KCI등재

        농업경영체 등록정보와 공간정보를 활용한 농지범용화 사업 대상지 선정 방안 개발 및 적용

        나라,주동혁,김하영,유승환,곽영철,김정훈,이향미,조은정 한국농촌계획학회 2022 농촌계획 Vol.28 No.1

        It is necessary to prepare a stable production base in advance for a change in the global grain market, and it is required to prepare comprehensive countermeasures such as securing technical skills and cultivation technology. Therefore, Korea, which relies on imports of major grains other than rice, could be exposed to a food crisis at any time unless the self-sufficiency rate of grains is improved. In order to respond to this new food crisis, it is necessary to find ways to efficiently utilize rice fields to increase the domestic grain self-sufficiency rate. From this point of view, interest and demand for the generalization of farmland that can be used as paddy fields and returned to paddy fields are increasing, and related research is also being continuously performed. In order to select a multipurpose farmland project site, this study extracted farmland containing 10% or more purchased and stockpiled farmland through spatial analysis (buffer, dissolve, intersect, etc.), and finally presented areas subject to multipurpose farmland projects. The target site for the multipurpose farmland project was finally selected by integrating data onto a point-by-point basis so that the current status of farmland purchased and stockpiled, Farm Manager Registration Records, and the Korean Soil Information System data (drainage classes, surface soil texture, field-suitability classification, etc.) can be used in combination. There are 175 areas where the multipurpose farmland is possible. Incheon 2, Gyeongbuk 40, Gangwon 2, Chungbuk 7, Chungnam 48, Jeonbuk 34, Jeonnam 19, Gyeongbuk 15, Gyeongnam 8. Chungcheongnam-do has the most target site for the multipurpose farmland project, and Gangwon-do is the least. It is expected to contribute to new commercialization and business expansion by deriving business areas by identifying the scale of the farmland multipurpose farmland project using Farm Manger Registration Records and spatial data. It is necessary to prepare a stable production base in advance for a change in the global grain market, and it is required to prepare comprehensive countermeasures such as securing technical skills and cultivation technology. Therefore, Korea, which relies on imports of major grains other than rice, could be exposed to a food crisis at any time unless the self-sufficiency rate of grains is improved. In order to respond to this new food crisis, it is necessary to find ways to efficiently utilize rice fields to increase the domestic grain self-sufficiency rate. From this point of view, interest and demand for the generalization of farmland that can be used as paddy fields and returned to paddy fields are increasing, and related research is also being continuously performed. In order to select a multipurpose farmland project site, this study extracted farmland containing 10% or more purchased and stockpiled farmland through spatial analysis (buffer, dissolve, intersect, etc.), and finally presented areas subject to multipurpose farmland projects. The target site for the multipurpose farmland project was finally selected by integrating data onto a point-by-point basis so that the current status of farmland purchased and stockpiled, Farm Manager Registration Records, and the Korean Soil Information System data (drainage classes, surface soil texture, field-suitability classification, etc.) can be used in combination. There are 175 areas where the multipurpose farmland is possible. Incheon 2, Gyeongbuk 40, Gangwon 2, Chungbuk 7, Chungnam 48, Jeonbuk 34, Jeonnam 19, Gyeongbuk 15, Gyeongnam 8. Chungcheongnam-do has the most target site for the multipurpose farmland project, and Gangwon-do is the least. It is expected to contribute to new commercialization and business expansion by deriving business areas by identifying the scale of the farmland multipurpose farmland project using Farm Manger Registration Records and spatial data.

      • KCI등재

        고장 사례분석을 통한 유도탄고속함 함포체계 사격안전성 개선방안 연구

        나라,김병호,서재현,Na, Ra-Byeol,Kim, Byeong-Ho,Seo, Jae-Hyun 한국군사과학기술학회 2017 한국군사과학기술학회지 Vol.20 No.2

        This study aims to the increasing the reliability of gun firing system of patrol killer guided missile from failure mode analysis. In order to find out the breakdown parameter, the examination process of the sources of the problems and the quality improvement activities are analyzed with performance testing data. From this study, the rate of operation and the reliability of 76 mm naval guns will be increase. And the result of the study is expected to be used as a reference data in the naval gun firing system for another failure mode analysis.

      • KCI등재

        전투차량 용접구조물의 변형 개선 및 교정방안에 관한 연구

        나라,김선진,정연호,강승주,김록한,손민구 한국기계기술학회 2021 한국기계기술학회지 Vol.23 No.5

        Combat vehicles were developed in two types depending on the purpose of operation. The body of the vehicle is relatively large welded structure, and there is a quality problem in that welding deformation occurs in a certain area. Welding deformation is a problem that is inevitably generated during the welding process, and additional corrective work is performed. However, due to the structural characteristics of the welded structure of combat vehicl, there are many limitations in the correction method, which lowered the productivity. To improve this problem, we intend to establish improvement measures through analysis of the areas where welding deformation occurs and apply corrective measures suitable for welding structures of combat vehicles. For the design improvement plans, the finite element analysis were used and the correction method were applied to simulated structure to confirm the possibility. Finally, the improvement effect was confirmed by manufacturing the actual welded structure. Based on the results of this study, it is expected that the productivity of related similar welding structures as well as structures of wheeled armored vehicles, can be improved.

      • KCI등재

        K-55A1 자주포 급속장전장치의 장전신뢰성 향상에 관한 연구

        나라별(Ra-Byeol Na),김병현(Byung-Hyun Kim),이주승(Ju-Seung Lee),김병호(Byeong-Ho Kim) 한국산학기술학회 2018 한국산학기술학회논문지 Vol.19 No.9

        본 연구는 군 포병 전력의 핵심 장비인 자주포의 급속장전장치에 장착된 밀대 시스템 개선을 통해 탄의 장전 안정성 향상을 목표로 하는 것이다. 종래의 자주포에는 수동 장전장치가 적용되어 있었다. 군에서 운용하는 장비의 현대화와 연속사격 속도 향상을 위해 급속 장전장치를 설치하였으며, 이러한 급속 장전장치를 통해 탄이 장전되는 과정에서 약실 내부와 간섭되는 현상을 줄이고, 비행시간을 감소하도록 설계되었다. 그러나 기본적으로 밀대를 통해 탄의 급속장전이 이루어지는 슈팅 방식의 장전시스템에서는 탄 흐름(fall-back) 현상이 간헐적으로 발생할 수 있다고 보고되고 있다. 그래서 이러한 문제를 해결하기 위해서 장전 과정의 실제 조건을 반영한 전산모사(C.A.E.)를 통해 탄이 장전되는 과정에서 비행 거리를 감소시키면 탄 흐름 현상을 방지할 수 있는 것을 이론적으로 확인 하였고, 탄의 비행거리를 줄이는 최적의 설계 방안을 도출하였다. 최종적으로 이러한 결과를 바탕으로 야전에 배치된 자주포에 장착하여 시험한 결과 개선효과가 있음을 확인하였다. This study was conducted to improve the shooting stability of self propelled artillery by improving the flick rammer system. The flick rammer system is designed to reduce crew fatigue and shorten the movement and loading time of the shell compared with the conventional manual loading system. Basically, in the flick rammer system of the shooting type, fall-back occurs intermittently, which causes problems in the rapid loading. To solve this problem, a detailed C.A.E. (Computer Aided Engineering) analysis of the internal structure of the existing rapid loading field was conducted. Through this, we sought a solution that can prevent fall-back by reducing the flying distance. We then optimized the loading station to reduce the flying distance and confirmed the possibility of suppressing the fall-back compared to the existing product through actual tests in the field.

      • KCI등재

        文のタイプによる非條件的な用法のバの出現樣相について

        나라유리에 한국일본어문학회 2014 日本語文學 Vol.63 No.-

        本稿では條件接續辭のバが話し言葉と書き言葉において、どのような表現で使用されているのかを調査し、バの條件表現とともに非條件用法について考察したい。名大會話コ一パスに現れた條件接續辭バ2319例のうち、評價的用法が629例(27.1%)と最も多く、次いで終助詞的用法が563例(24.3%)であった。これは聞き手のいる談話で、話し手が聞き手に動きかけながら談話を進めるため、願望、勸めといった意味の用法が多く現れたのであろう。それに對し、條件的用法は418例と全體の18.0%であった。また、接續詞的用法のソウイエバは相手の發話內容から想起して、タ一ンを取る機能を果たすため、會話コ一パスで138例(6.0%)見られた。BCCWJの書籍コア(2000∼2008年)では條件的用法が291例で全體の51.6%を占めていた。次いで用例が多かったのは、非條件の義務を表すバイケナイ等で103例(18.3%)であった。また、話し言葉で多く使用例の見られたバイイは33例、いいさしは11例が見られるのみであった。日本語學習者の初級テキストでは義務のバイケナイがもっとも早く提示される。これはナイ形が反定形よりも早くテキストで扱われるためであろう。そして、條件的用法が反定形と共に導入される。この二項目は話し言葉、書き言葉共に出現頻度が高く、テキストで妥當な扱いを受けている。會話コ一パスで最も出現頻度の高かったバイイは、1つのテキストでは提示の用法が文法として扱われていた。しかし、終助詞的用法のバは見られなかった。

      • KCI등재

        Colonial Encounter with Traditional Social Elite Class in Bengal : Emergence of New Social Classes on the Ruins of the Mughal Empire

        히리대 나라연(Narayan Hriday) 중앙대학교 중앙사학연구소 2018 중앙사론 Vol.0 No.47

        역사적으로 벵갈은 차례로 힌두교도, 불교도, 무굴 통치자들의 지배를겪었다. 이슬람 문화와 페르시아어가 13세기 초 투르크의 정복을 통해 벵갈에 도입되었다. 그리고 16세기 후반에 무굴이 벵갈을 침공하면서 이슬람 문화는 지역 문화의 일부가 되었다. 그러나 투르크와 무굴의 벵갈 정복은 18세기 후반 동인도회사의 벵갈 식민화와는 완전히 다른 것이었다. 동인도회사 산하의 영국인들은 식민화된 벵갈에 착취를 위한 식민적 도구로서 상이한 토지세 정착지를 고안하고 이식했다. 이 논문에서는 영국 정부의 벵갈 통치기간 동안 그들에 의해 도입된 토지세 정착지, 언어 및 교육정책의 규모와 그것이 가져온 막대한 결과를 분석하고 해석하고자 한다. 특히, 이 논문에서는 이러한 정책들이 전통적 힌두교와 이슬람 엘리트 계급과 사회경제구조에 초래한 영향과 그리고 사회, 정치, 그리고 교육계에초래한 변화 또는 변형을 조망하고자 한다. Historically, Bengal has gone through the successive rule of Hindu, Buddhist and Mughal rulers. Islamic culture and Persian language were introduced in Bengal through the Turkish conquests in the early thirteenth century. And, by the late sixteenth century when Mughals invaded Bengal, the Islam culture has become a part of local culture. But the Turkish and Mughal conquest of Bengal was completely different than the colonization of Bengal by East India Company in the late eighteenth century. The British under East India Company conceived and implemented different land revenue settlements as a colonial tool of exploitation in colonized Bengal. In this paper, an attempt has been made to analyze and to interpret the extents, and far-reaching consequences of the land revenue settlements, linguistic and educational policies adopted by the British administration during its rule over Bengal. Especially, the paper looks into the impact of these policies on the prevailing traditional Hindu and Muslim elite classes and socio-economic structure, and the changes or transformations brought in the social, political and educational spheres

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