RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제
      • 좁혀본 항목 보기순서

        • 원문유무
        • 음성지원유무
        • 원문제공처
          펼치기
        • 등재정보
          펼치기
        • 학술지명
          펼치기
        • 주제분류
          펼치기
        • 발행연도
          펼치기
        • 작성언어

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • KCI등재후보

        눌재 양성지의 관방론(關防論) 연구 - 15세기 중엽 주변정세를 기초로 -

        김석규 육군군사연구소 2012 군사연구 Vol.- No.134

        세종의 치세로 인해 국내적으로는 안정된 국가운영을 이룰 수 있었지만, 사실 당시 국제정세는 불안정한 북방 정세로 인해 크게 요동치고 있었다. 15세기 중반은 북 몽골세력의 흥기로 인해 명이 동요되었으며, 이로 인해 조선과 여진, 일본 역시 크게 동요하던 시기였다. 특히 세종말년에 발생한‘토목의 변’은 조선의 위정자들에게 큰 충격으로 다가왔으며, 이는 당시 신진관료였던 양성지(梁誠之)에게도 큰 위협으로 다가왔을 것이다. ‘토목의 변’이라는 충격적인 사건은 조선에게 새로운 국가방위 시책을 요구하고 있었다. 본 연구서에서는 이처럼 불안정했던 15세기 중반의 북방정세에 대해 양성지는 어떻게 인식하였는가, 그리고 이러한 위협에 대비하기 위해 어떠한 방책을 구상하였으며, 그가 제시한 관방론의 구체적인 내용은 무엇이며, 이를 통해 양성지가 궁극적으로 나타내고자 했던 국토방위사상의 핵심은 무엇인가에 대해 살펴보았다. 그 결과 양성지의 관방사상은 단순히 학문적 식견을 통해서 나온 방비책이 아닌 당대의 국제정세와 그의 지리ㆍ역사적 식견이 종합되어 나온 산물이라 할 수 있다. 그가 제시한 요읍관방론은 단순한 방어이론이라기 보다는 국가 방어 전략의 수준으로 이해하여야 한다. 아울러 오늘날 우리에게 있어 전통적 안보개념상 직면하고 있는 북한의 위협에만 치중할 것이 아니라, 다변화하는 국제정세 속에서 냉철한 통찰력과 원시안적인 시각을 바탕으로 한 국가전략 수립의 필요성에 대한 시대적 함의를 전달한다. Domestically, Due to the reign of King Sejong operating, stable operation of the country was able to achieve. However, at that time it is a fact that was beating due to the unstable northern state of affairs. The mid-15th century, the Ming dynasty was shaken due to the strengthening of the forces of the Northern Mongolia. As a result,the Chosun dynasty and Yeojin(女眞), Japan was a time when too greatly disturbed. ‘The event of Tomok(土木)’ occurred in the last years of King Sejong’s life, especially Chosun’s administrator was a big shock. This will be the biggest threat to Yang Seong-Ji who was budding bureaucracy. By the traumatic event of Tomok(土木), Chosun dynasty required a new national defense measures. In this study, we explained how did Yang Seong-Ji recognize about the situation in the northern mid-15th century, and any measures to prepare for these threats envisioned, and what specific information he presented Gwanbang-theory(關防論) and ultimately through Yang Seong-Ji who was represented by defense and homeland of the core ideas about what it looked. Yang Seong-Ji's Gwanbang(關防) ideas of contemporary international affairs is not simply academic insights through the defensive, and his geographical, historical insights this comprehensive product is shown that the results can be. He suggested Yoeup Gwanbang-theory(要邑關防論) mere defense theory, rather than to understand the level of the national defense strategy. In addition to focusing on traditional security concept phase for us today who are facing the threat of North Korea, but to diversify the international situation in the delivers based largely sober insight and view on the necessity of establishing a national strategy for the contemporary implications.

      • 손실된 재전송 복구를 통한 TCP 손실 복구 성능 향상 모델링 및 분석

        김석규,이재용,김범준,최용훈 에스케이텔레콤 (주) 2005 Telecommunications Review Vol.15 No.4

        인터넷에서 널리 사용되고 있는 수송 계층 프로토콜인 TCP(Transmission Control Protocol)의 전반적인 성능은 손실된 패킷들을 얼마나 효율적으로 복구할 수 있느냐에 크게 의존한다. TCP 손실 복구 알고리듬 자체의 결함으로 인해 발생할 수 있는 불필요한 재전송 타임아웃을 방지하기 위해 많은 노력이 계속되어 왔고 그 결과로 최근에는 선택승인 옵션과 제한 전송 기법이 제안되어 IETF(Internet Engineering Task Force)의 표준 문서로 채택되었다. 그러나 지금까지 제안된 모든 TCP 손실 복구 알고리듬들은 재전송된 패킷이 다시 손실되는 경우 발생하는 타임아웃을 방지할 수 없는 문제점이 여전히 남아있다. 본 논문에서는 가장 대표적인 세 TCP 구현인 TCP Reno, NewReno, 그리고 선택승인(selective acknowledgement) 옵션을 사용하는 TCP가 재전송 손실을 감지하고 이를 재전송에 의해서 복구할 수 있도록 해주는 간단한 알고리듬을 제안한다. 수학적인 모델링과 시뮬레이션을 통해서 제안된 알고리듬을 평가하고 제안된 알고리듬이 TCP의 손실 복구 성능을 상당히 향상시킬 수 있음을 보였다.

      • 도시공원녹지의 공간별 토양특성이 수목활력도에 미치는 영향

        김석규 東亞大學校 建設技術硏究所 2005 硏究論文集 Vol.29 No.1

        The purpose of this study is to clarify correlations between soil characteristics by zone and the growth of trees in urban park on analyze effects of such environments on such growth. The result of the study can be described as below; The park entry area should be divided into areas, that can be used and should be protected, and to each area, different maintenance system should be given. In the facility area, buffering plants should be planted between usable area and natural vegetation area to protect the natural vegetation. In order to improve bad soil condition due to users' recreational trampling, special treatments to the soil structure are required, such as mulching and raking soil. Also, depending on its soil damage from users' trampling, the areas in the park should be divided into usable area and user limited area by the sabbatical year system. To improve the soil acidity due to acid rain, soil buffering ability should be improved from activating microorganisms in the soil by using lime and organic material, Since it takes a long time to make a change in the soil structure, well planed maintenance system is required by mid-term or long-term plans.

      • 도시공원녹지의 입지별 토양환경이 곰솔의 생육에 미치는 영향

        김석규 東亞大學校 建設技術硏究所 2005 硏究論文集 Vol.29 No.1

        The purpose of this study is to propose rational methods in order to maintain vegetation condition and soil environment based on the analysis of tree growth in relation to the soil environment, which is one of the most significant environmental factors on vegetation condition in urban parks and open spaces. From the result of soil environment analysis, it is found that trampling pressure from the users provides a great influence to the quality of soil environment. The soil on every study site had strong acidity. In particular, study sites around industrial district, central business district, and residential area showed extreme soil acidity. Therefore, soil management system is needed in urban parks and green spaces around those areas. locational tree vitality was bad where there was high user density, such as park entry and facility areas. Therefore, there is a strong relation between tree vitality and user density. Among tree vitalities classified by locations of park, one in the costal area was the highest. The tree vitality in the industrial area was the lowest. Therefore, soil condition and locational environment in the industrial area are highly related to the tree vitality. Among the factors, which affect tree vitality in different locations, inorganic content was found to be the main factor in all of the study sites. Inorganic content was an important factor to the tree vitality in study sites located in industrial and residential areas. In the study sites located in costal area, Soil acidity was found to be other important factors that affect tree vitality. Among various soil factors that affect tree vitality in parks, inorganic content and soil hardness were an important factor in the park entry and facility zone. Therefore, it is needed to maintain soil condition with different consideration depending on its main factors mentioned above.

      • 가로수 식재지의 토양조건이 가로수 활력도에 미치는 영향

        김석규,박승범 동아대학교 환경문제연구소 1999 硏究報告 Vol.22 No.2

        The purpose of this study is to analyze the correlation between soil hardness, soil acidity, and the vitality of street trees. The findings are as follows : 1. The average soil hardness where tree grates have been built was shown to be 22.23mm. In the absence of tree grates, the average soil hardness was 24.60mm. These figures do not exceed the accepted parameters for acceptable soil hardness when rearing trees (23∼25mm). However, soil hardness was measured higher in areas where tree grates were absent. Consequently, tree grates are necessary. 2. Soil acidity was measured as satisfactory(pH 5.5). mediocre(pH 5.5~5.0), inferior(pH 5.0-4.5), very inferior(pH 4.5). No areas were measured as satisfactory soil acidity Four areas were measured as mediocre(l0%). 19 areas as inferior(47.5%). and 17 areas as very inferior (42.5%). This indicates a requirement to improve soil acidity as about 90% of the investigatived areas were measured as either inferior or very inferior. 3. The following is an analysis of correlation between soil hardness, soil acidity and the vitality of the Ginkgo biloba and Platanus orientalis ; The Ginkgo biloba was found to have a positive correlation with soil hardness, but a negative correlation with soil acidity. An 84.3% correlation was measured with the diagram (R²). A positive correlation with soil hardness was measured for the Platanus orientalis, but a negative correlation with soil acidity. An 84.7% correlation was measured with the diagram (R²). In conclusion, the results of the analysis show a strong influence of soil hardness and soil aciditv upon the vitalitv of Street Tree.

      • KCI등재

        엽록체 DNA 및 핵 DNA 염기서열에 근거한 한국산 나문재속(명아주과)의 분류학적 연구

        김석규,정상옥 한국환경생태학회 2018 한국환경생태학회지 Vol.32 No.6

        The purpose of this study was to identify the phylogenetic relationships of the plants in the Korean genus Suaeda and to find out the molecular markers that could confirm the interspecies relationships in the family tree through molecular phylogenetic studies. We used the nuclear ribosomal DNA ITS and the chloroplast DNA matK, psbA-trnH, and trnL-trnF as the molecular markers. We could not distinguish between S. japonica and S. maritima and between S. maritima and S. australis in the ITS region and could not distinguish between S. japonica and S. australis with the base sequence in the psbA-trnH and trnL-trnF region. However, we analyzed the combinations of four molecular marker regions and confirmed that each of five plant species of the genus Suaeda formed the independent line. Therefore, it is considered that combinations of molecular markers would be useful for the analysis of phylogenetic relationships in the genus Suaeda. Further investigations of the ecological and morphological characteristics would be needed to understand the phylogenetic relationship and lineage diversification in the genus Suaeda. 한국산 나문재속 식물에 대한 계통학적 유연관계를 밝히고, 분자계통학적 연구를 통해 나문재속 종간 유연관계를확인할 수 있는 분자마커를 찾아내기 위해 연구를 수행하였다. 핵 리보솜 DNA ITS와 엽록체 DNA matK, psbA-trnH 그리고 trnL-trnF를 분자마커로 사용하였다. ITS 영역은 칠면초와 해홍나물 그리고 해홍나물과 방석나물을 구분하지못하였다. psbA-trnH와 trnL-trnF 영역의 염기서열은 칠면초와 방석나물을 구분하지 못하였다. 그러나 4종의 분자마커영역을 조합하여 분석한 결과 나문재속 식물 5종이 각각 독립적인 계통을 형성하는 것을 확인하였다. 따라서 나문재속계통관계 분석을 위해서 여러 개의 분자마커 조합이 유용할 것으로 판단된다. 나문재속 내 분류군 간의 계통관계를명확히 밝히기 위해 차후에 좀 더 많은 생태학적, 형태학적 자료를 조사해야 할 것으로 보인다.

      • KCI등재

        소련과 중국의 전략로켓부대 창군과정과 북한 상황 분석

        김석규 한국국방연구원 2014 국방정책연구 Vol.30 No.2

        This study start from the fact that Establishing of Soviet`s Strategic Rocket Force and China`s Second Artillery Force is related with a change of Weapon System. In terms of this fact, this study have three questions. First, Why was the Force like a strategic nuclear force established? Second, What does the change of Strategic Rocket Force(SRF) mean? Finally, What is ultimately the pursuing strategy of SRF? The purpose of this study is to solve these questions.

      • KCI등재

        스포츠 앱 서비스품질에 따른 스포츠효과, 만족도, 구전의도의 관계

        김석규,유준영,조두현,유재구 한국웰니스학회 2017 한국웰니스학회지 Vol.12 No.4

        The purpose of this study was to investigate the relationship among Exercise Effectiveness, Satisfaction, and Recommendation according to Service Quality of Exercise Application in order to suggest the basic data for the developing improvement of exercise application. totally 280 samples were randomly collected by using questionnaires, and 256 questionnaires were finally used for this study. this study conducted frequency analysis, exploratory factor analysis, confirmatory factor analysis, Cronbach's α test, correlation analysis and structure equation modeling analysis using SPSS 22.0 and AMOS 18.0. The research results are as follows: First, Service Quality of sports app was found to had a significant influence on Exercise Effectiveness. Second, Service Quality of sports app was found to had a significant influence on satisfaction level. Third, Service Quality of sports app was not found to had a significant influence on WOM(word of mouth). Fourth, Exercise Effectiveness was found to had a significant influence on WOM. satisfaction level was found to had a significant influence on WOM 이 연구의 목적은 스포츠 앱 서비스품질과 스포츠효과, 만족도, 구전의도의 관계를 규명하는 것이다. 연구의 목적을 달성하기 위해 서울, 인천, 경기 지역에 있는 대학교 학생 중 스포츠 앱 이용자를 모집단으로 하였으며 280명을 연구 대상으로 선정 하였다. 자료처리는 SPSS 21.0과 AMOS 24.0을 활용하여 빈도분석, 탐색적 요인분석, 확인적 요인분석, 신뢰도분석, 상관관계분석 및 구조방정식모형분석을 실시하였는데, 그 결과는 다음과 같다. 첫째, 스포츠 앱 서비스품질이 스포츠효과에 유의한 영향을 미치는 것으로 나타났다. 둘째, 스포츠 앱 서비스품질이 만족도에 유의한 영향을 미치는 것으로 나타났다. 셋째, 스포츠 앱 서비스품질이 구전의도에 유의한 영향을 미치지 않은 것으로 나타났다. 넷째, 스포츠 앱의 스포츠효과가 구전의도에 유의한 영향을 미치는 것으로 나타났다. 다섯째, 스포츠 앱의 만족도가 구전의도에 유의한 영향을 미치는 것으로 나타났다.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼