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      • KCI등재

        공대지 유도폭탄 투하 가능 영역 계산 알고리즘 개발

        서정재(Jeong Jae Seo) 한국항공우주학회 2017 韓國航空宇宙學會誌 Vol.45 No.6

        투하 가능 영역(LAR)는 공대지 유도 폭탄을 장착한 항공기가 표적을 성공적으로 타격하기 위하여 진입하는 영역을 말한다. LAR는 항공기 투하 조건, 표적 착탄 조건, 대기 환경 조건을 고려하여야 한다. 본 논문에서는 투하, 착탄, 환경 조건 등의 입력 조건을 변화시켜 많은 시뮬레이션을 통해 데이터베이스를 구축하여 LAR 알고리즘을 개발하였다. 개발된 알고리즘을 시뮬레이션 결과를 통해 시험하였고, 공대지 유도폭탄의 LAR 도출에 적용 가능함을 확인하였다. Launch Acceptability Region(LAR) is a region for an aircraft which carries air-to-ground guided bombs to enter such that it can successfully hit the target. LAR should consider the release condition of an aircraft, impact condition for targets, and environmental condition of atmosphere. In this paper, LAR algorithm was developed using the database of many simulations which were varied by inputs, such as the release, impact, and environmental conditions. The algorithm was tested through the direct simulation results, and found that it was suitable to apply as LAR for air-to-ground guided bomb.

      • KCI우수등재

        공동주택 기계실 난방설비 운전 개선 연구

        서정아(Jeong-Ah Seo),신영기(Younggy Shin),김용기(Yong-Ki Kim),이태원(Tae-Won Lee) 대한설비공학회 2017 설비공학 논문집 Vol.29 No.1

        This study proposes an idea for energy saving in apartment machine rooms. A conventional district heating system is equipped with constant-flow pumps and bypass valves to regulate pump differential pressure. Each family unit is equipped with a constant-flow on/off valve. This leads to excessive hot water circulation and a high return temperature. To reduce energy loss, this study assumes that each family unit is renovated with a heating valve which regulates the return temperature at 35℃. The hot water supply pump is also replaced with a pump with an inverter to vary flow rate. Expected energy savings is then estimated from field test data. According to the results, pump electricity consumption was reduced by 6,100 kWh for a family unit building over about half a year. The supply temperature can also be lowered by 5℃, which can contribute to a production of electricity of 10.3 kWh/ton of hot water.

      • KCI등재

        부산시 무형문화재 9호 <부산영산재>의 전 예능보유자 구암의 소리 연구: <삼귀의>를 중심으로

        서정매 ( Jeong Mae Seo ) 세계음악학회 2015 음악과 문화 Vol.33 No.-

        Beompae in Pusan Province has a unique feature in transmission. Intangible cultural assets No1 was given to <BeomeumBeompae> on November, 5, 1971 and its artistic talents holder was head monk monk. Yongun in mountain Geumjeong Gukcheong Temple. Unfortunately, aftermonk. Yongun passed away the next year, <BeomeumBeompae>was relieved from intangible cultural assets on March, 6. 1973. Fortunately, 20 years later on April, 20. 1993 monk. Guam and monk. Hyeryung who were taught by monk. Yongun. monk. Haegang in Nabi-dance dancing and monk. Cheonggong in Para-dance dancing, four of whom were the holders and successful in acquiring intangible cultural assets No9 in the name of PusanYeongsanjae. Although intangible cultural assets No1 and No9 of Pusan city were designated in different times and for different reasons, head monk monk. Guam and monk. Hyeryung in Beompae (intangible cultural assets No9) carried on the sound of monk. Yongun. The problem is that while the studies on Beompae in Pusan is mostly focused on monk. Yongun who was artistic talents holder of intangible cultural assets No1, it has been rare in studying the holders of No. 9, <PusanYeongsanjae>. Unlike a general trend of buddhism ritual which shows abbreviation and omission as time goes by, we can say that monk.Guam can be highly evaluated for expanding musical expressions like adding J achulseong to the sound of monk. Yongun and making some variations by asserting pitch accents sol#. That means he had a excellent musical ability and is the aspects of Beompae melody in Pusan which flows from monk. Yongun to monk. Guam.

      • Upwind 방법을 이용한 무딘물체 주위의 화확적 비평형 비점성 유동장의 수치해석

        서정일(Jeong Il Seo),송동주(Dong Joo Song) 한국전산유체공학회 1997 한국전산유체공학회 학술대회논문집 Vol.1997 No.-

        A finite-difference method based on conservative supra characteristic method type upwind flux difference splitting has been developed to study the nonequilibrium chemically reacting inviscid flow. For nonequilibrium air, NS-1 species equations were strongly coupled with flowfleld equations through convection and species production terms. Inviscid nonequilibrium chemically reacting air mixture flows over Blunt-body were solved to demonstrate the capability of the current method. At low altitude flight conditions the nonequilibrium air models predicted almost the Same temperature, density and pressure behind the shock as equilibrium flow; however, at high altitudes they showed substantial differences due to nonequilibrium chemistIy effect. The new nonequilibrium chemically reacting upwind flux difference splitting method can be extended to viscous flow and multi-dimensional flow conditions.

      • KCI등재

        내서들일소리의 음악적 특징과 지역성

        서정매 ( Seo Jeong-mae ) 한국공연문화학회 2021 공연문화연구 Vol.- No.43

        본 연구는 창원시 내서들일소리의 전승 현황과 음악적 특징을 분석한 것으로, 현재 내서지역에 전승되고 있는 들일소리가 지속적으로 계승될 수 있도록 그 가치를 조명하는 데에 목적을 두고 있다. 내서들일소리는 일의 순서에 따라 모심기소리, 빠른 모심기소리, 논매기소리, 칭칭이소리 등으로 구성된다. 이중 모심기소리는 일의 순서와 상황에 따라 ①모찌기소리, ②오전에 부르는 모심기소리, ③점심 때 부르는 모심기소리, ④점심 후에 부르는 모심기소리, ⑤비 오고 흐릴 때 부르는 모심기소리, ⑥해 질 때 부르는 모심기소리 등 총 여섯 부분으로 나누어지며, 음악적으로는 느린 모심기소리와 빠른 모심기소리의 두 부분으로 나누어진다. 모심기소리는 메나리토리가 근간을 이루고 있지만, 부분적으로 육자배기의 영향이 나타난다. 그러나 인근의 함안지역의 느린 모심기소리에서는 전형적인 메나리토리였지만, 빠른 모심기소리에는 속도가 빨라지게 되면서 메나리토리의 특징은 옅어지고 la↘mi의 완전4도 하행이 잦게 나타났다. 고성지역의 모심기소리는 느리고 빠른 소리 모두 육자배기토리의 영향이 강하게 나타났다. 결국 내서지역의 모심기소리는 고성지역보다는 육자배기토리가 덜하고, 함안지역보다는 강하게 나타나는 특징을 지닌다. 이러한 토리의 결합은 접경 지역에 나타나는 음악적 교섭현상으로, 내서지역의 지리적ㆍ지역적 특징이라 할 수 있다. 논매기소리는 인근의 고성, 함안 지역 모두 받는 소리가 ‘상사디어’로 공통된다. 그런데 내서지역의 논매기에서는 받는 소리에서 강한 경토리의 성향이 발견된다. 논매기소리는 선율의 흐름을 보았을 때, 이는 근래에 들어 창자에 의해 음정에 변화가 이루어졌고, 이러한 변형된 선율 형태가 그대로 지속되어 온 것으로 보인다. 지역성을 담보하기 위해 이 부분은 추후 수정보완이 필요해 보인다. This study is to analyze the current status of transmission and musical characteristics of Naeseo-deulilsori in Changwon, and the purpose of this study is to illuminate the value of deulilsori in Naeseo region, so that it can be continuously inherited. Naeseo-deulsori consists of the Mosimgi-sori, Nonmaegi-sori, and Chingchingi-sori. Mosimgi-sori, which is called when planting a seedling, is divided into 6 types according to the order and situation of work. ① rice planting sound, ② rice planting sound called in the morning, ③ rice planting sound called at lunch time, ④ rice planting sound called after lunch, ⑤ rice planting sound called when it is raining or cloudy, ⑥ rice planting sound called at sunset. Mosimgi-sori, which is called when planting a seedling, is based on Menali-tori, but partly influenced by Yugjabaegi-tori. However, it was typical Menali-tori in the slow The sound of rice planting in the nearby Haman region, but as the speed increased in the fast The sound of rice planting, the characteristics of Menali-tori faded and la↘mi perfect fourth descending frequently appeared. In the sound of rice planting in Goseong, both slow and fast sounds were strongly influenced by Yugjabaegi-tori. In the end, the sound of rice planting in the Naeseo region is less Yugjabaegi-tori than in the Goseong region and stronger than in Haman region. This combination of tori is a musical bargaining phenomenon that appears in the border region, and it can be said to be a geographical and regional characteristic of the Naeseo region. Nonmaegi-sori has the same sound as 'Sangsadeio' throughout the nearby Goseong and Haman regions. However, in Nonmaegi-sori in the Naeseo region, a strong Gyeong-tori tendency is found in the sound received. Looking at the flow of the melody of Nonmaegi-sori, it seems that the pitch has been changed by the intestines in recent years, and this modified melodic form has continued as it is. In order to guarantee locality, this part seems to need to be corrected in the future.

      • KCI등재

        번역전이에 따른 문체의 비교방법론에 관한 연구

        서정목(Jeong Mok Seo) 언어과학회 2011 언어과학연구 Vol.57 No.-

        This article presents a survey of the concept and definition of styles as an idiosyncrasy shown in texts according to the translation shifts from source language to target language and comparative methodologies for styles in a broad sense. Vinay & Darbelnet(1958)`s comparative stylistic methodology, Malone(1988)`s translation techniques, or trajection, and van Leuven- Zwart(1989)`s comparative model are contrastively studied as comparative methodologies. Effective analysis method centered around van Leuven-Zwart(1989)`s is surveyed through case studies where the comparative methodologies are applied, and their theories and practices are verified. According to the comparative methodology, such information as what kinds of translation shifts are used, and accordingly, what kind of translation is performed is provided. In van Leuven-Zwart (1989)`s comparative model, stylistic elements belonging to subcategories of stylistic modulation, stylistic modification, and syntactic-stylistic modification are tertium comparationis in a narrow sense of style. Not only the existing stylist stylistic elements, but also all the other elements can be utilized as tertium comparationis for comparing styles in source language and target language in a broad sense of style. All the elements can be involved in translation process affecting styles in translation process from source language to target language. The model suggested by van Leuven-Zwart(1989) originally consists of a comparative model and a descriptive model, and in this article, only the comparative model is considered for the purpose of comparability with tertium comparationis of other methodologies. The comparative model is on the microstructural level of sentences, clauses and phrases, and shifts are involved in semantic, stylistic and pragmatic values. The descriptive model is on the macrostructural level transcending the microstructural level, and shifts are involved in discourse level and story level based on linguistic metafunctions such as interpersonal, ideational, and textual. The next task for the study on the comparative methodologies of styles based on translation shifts is to establish an integrated model of comparative/descriptive models for the perfect analysis of styles, both qualitatively and quantitatively.

      • KCI등재
      • KCI등재

        미,중관계의 맥락에서 본 한국 안보: 1970년대 미중 데땅뜨 시기를 중심으로

        서정경 ( Jeong Kyung Seo ) 현대중국학회 2011 現代中國硏究 Vol.13 No.1

        본 연구는 ``미중관계는 한국의 안보환경을 구성하는 주요한 대외적 요인``이라는 대전제하에, 한국의 안보환경이 당면한 구조적 취약성을 밝히는 데 목적이 있다. 한반도를 둘러싼 강대국관계가 우호적인 것이 반드시 한국의 안보환경에 이로운 것은 아닐 수 있다는 가설을 검증하기 위해 1970년대 미중 데땅뜨 시기를 분석대상으로 하였다. 먼저 한반도 안보환경의 상위구조인 미중관계를 분석하기 위하여 양국의 상호인식 변화, 데땅뜨 추진과 연동된 한반도문제에 관한 양국타협을 분석하였고, 다음으로 하위구조를 분석하기 위하여 미중 양국의 동맹(한국, 북한)정책 변화 및 그것의 영향을 분석하였다. 분석결과, 미국과 중국이 한반도를 갈등이 아닌 타협의 장으로 상정한 가운데 양국의 동맹국정책은 상이하게 표출되었다. 이에 한국은 미국의 일방적 조치에 의한 심각한 방기 우려를 겪었으며, 적성국(북한)의 위협을 효과적으로 제거하지도 못했고, 외교적 고립을 방지하기 위해 추진한 대중국 접근 또한 별다른 성과를 얻지 못했다. 이는 무엇보다 한반도를 둘러싼 위계적, 다층적 관계구조 속에서 한국이 처하는 구조적 취약성에 기인하는 것으로 판단된다. This study aims to demonstrate that Korea has the systemic weakness in hierarchical order in the Northeast Asia. Under the premise that Sino-U.S. relationship is the main factor in security environment of Korea, this study also proves that amicable relationship between China and U.S. might not necessarily lead to the favorable security environment for Korea. For this purpose, this study covers the U.S.-China Detente era, scrutinizes the upper level(U.S.-China relationship) first: the changes in mutual perceptions, their strategic compromise on the Korean peninsula issues, and then the subordinate level (ROK-U.S. Alliance and China-DPRK Alliance), especially focuses on the differences between two county`s alliance policy. As a result of U.S.-China`s agreement on handling the Korean peninsula issue in the realm of cooperation, not of conflict, as well as two country`s arbitrary alliance policies for their own benefits, Korea had no choice but to face abandonment crisis caused by U.S., but also couldn`t eliminate the threats from North Korea effectively. plus, new approaches towards China also did not bear fruits as well.

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