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
        • 저자
          펼치기

      오늘 본 자료

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

        혈관질환 정보관리 시스템

        김동익,김덕경,허세호,이병붕,김용신,김은숙,문지영,도영수,신성욱,김동수,김만태,진재욱,김용신 대한혈관외과학회 2002 Vascular Specialist International Vol.18 No.1

        As medical technology progresses rapidly, there is a rise in the average age along with the Korean dietary lifestyle becoming more westernized, which leads to an increase in the number of vascular disease patients in Korea. Thus, we need to manage the medical information of a disease systematically in order to diagnose and treat constructively. However, since there has been no standardized method of man agement to date, a great deal of information could not be properly utilized nor studied. Therefore, the departments of Cardiology, Radiology and Neurology of Samsung Seoul Hospital recently got together to develop an information management system called the Vascular Data System. This program was developed to be run on win98 O/S, upper Pentium Ⅲ, and upper 128 MB Memory, and its source code is Dephi 4.0. It was configured for the user to set the configurations as well as do a variety of search and analysis. If this program were to be updated continuously, it may be used extensively as well as in various parts of clinical research activities.

      • 韓國河川의 流出率과 流出指標로서의 洪水直前 流量

        金熙鍾,柳又秀,金佳鉉,申東守,韓健模,全裕燦 東亞大學校 大學院 1984 大學院論文集 Vol.9 No.-

        This paper is a study on relation between run-off ratio and antecedent discharge, run-off ratio and antecedent discharge per unit area, antecedent discharge and antecedent precipitation, by the data from the five major river basins in Korea and the small river basins in Pusan. The Nak-Dong rivers(An-Dong upper stream) f=0.4780+0.0124 ln qA r=0.99 qA=0.3368e0.1101R r=0.99 f=0.5793+0.0146 ln(qA/A) r=0.99 The Nak-Dong rivers except Ga-song station f=0.2017-0.0840 ln qA r=0.75 f=0.7012+0.0750 ln(aA/A) r=0.71 The Han rivers f=-0.0035+01267 on qA r=0.75 f=1.1311+0.1263 ln(qA/A) r=0.71 L=302.9064-43.8490 ln qA r=0.84 The Geun rivers(Mu-sin Cheon) f=0.295+0.1823 ln qA r=0.93 f=0.8417+0.1823 ln(qA/A) r=0.93 L=40.0456+62.0346 ln qA r=0.94 The Yeong-san rivers f=0.3766+0.0598 ln qA r=0.79 f=0.8084+0.0599 ln(qA/A) r=0.79 The Seom-jin rivers f=-1.3875+0.6505 ln qA r=0.92 f=2.1633+0.3465 ln(qA/A) r=0.76 Small river basin in Pusan f=0.3635+0.1120 ln qA r=0.87

      • KCI등재

        우리나라에서 솔껍질깍지벌레의 분포확산

        임유진,이상명,김동수,김준범,최광식,이신혜,박정규,이동운,Lim, Eu-Gene,Lee, Sang-Myeong,Kim, Dong-Soo,Kim, Joon-Bum,Lee, Shin-Hye,Choi, Kwang-Sik,Park, Chung-Gyoo,Lee, Dong-Woon 한국응용곤충학회 2012 한국응용곤충학회지 Vol.51 No.1

        솔껍질깍지벌레는 우리나라 곰솔림의 주요한 해충의 하나이다. 본 연구는 우리나라에서 솔껍질깍지벌레의 분포를 알아보기 위하여 7개도 3개 광역시, 91개 시군구, 686 읍면동의 해송림에서 2010년 밀도를 조사하였다. 5개도 2개 광역시에서 솔껍질깍지벌레가 서식하고 있었는데 시군구별로는 조사대상의 64.8%인 59개 시군구에서 서식이 확인되었다. 솔껍질깍지벌레의 분포는 남해안 전역과 동해안의 포항, 서해안의 충남 보령지역까지 분포하였다. 충북과 대전광역시 및 제주도에서는 솔껍질깍지벌레의 분포가 확인되지 않았다. 부산지역은 16곳의 모든 구에서 솔껍질깍지벌레가 분포하였고, 시군 단위에서는 전남 해남군의 솔껍질깍지벌레 평균밀도가 1.713마리/0.785 $cm^2$로 가장 높았으며 읍면동 단위에서는 해남군 송지면이 6.36마리/0.785 $cm^2$로 가장 높았다. 곰솔 가지 내의 솔껍질깍지벌레 밀도와 솔껍질깍지벌레가 서식하고 있는 빈도와는 높은 상관관계가 있었다(상관계수=0.89). The black pine bast scale, $Masucoccus$ $thunbergianae$ (Hemiptera: Margarodidae), is a serious pest of the Japanese black pine, $Pinus$ $thunbergii$, in Korea. The distribution of the black pine bast scale was examined, looking overall at 686 towns (eup), townships (myeon) or neighborhoods (dong). There were Japanese black pine ($Pinus$ $thunbergii$) forests in 91 cities, counties (gun) and borough (gu), in seven provinces and three metropolitan cities during 2010. Black pine bast scale were found in 64.8% of cities or counties or borough (59) in 7 provinces and 3 metropolitan cities, and were distributed in all South Costal regions, Pohang in East Costal region and Boryeong in West Costal region. Chungcheongbukdo, Daejeon and Jeju did not have black pine bast scale. All the gu regions in Busan had black pine bast scale, of which the area with the highest prevalence was Haenam in Jeollanamdo (1.713 crawlers/0.785 $cm^2$). Songji-myeon had the highest occurrence rate (6.36 crawlers/0.785 $cm^2$) from the towns, township and dong. The density of black pine bast scale in twigs was highly correlated with percentage of the sample with scale (Correlation coefficacy=0.89).

      • KCI등재후보

        모성 직업활동이 조산과 저체중출생 및 자연유산에 미치는 영향

        신용덕,이태용,이영수,이동배 大韓産業醫學會 1994 대한직업환경의학회지 Vol.6 No.1

        모성 직업활동이 조산, 저체중 출생아 및 자연유산에 미치는 영향을 알아보기 위해 1991년 1월부터 1992년 12월까지 대전에 위치한 C대학병원에서 출생한 1,646명의 산모를 대상으로 하여 조사한 결과는 다음과 같다. 1. 조사 대상자 1,646명의 산모중 임신중 직업을 가진 군이 20.3%, 직업을 갖지않은 군이 79.7%였으며, 직업여부의 분포에 통계적으로 유의한 차이를 보인 변수는 산모의 연령, 교육정도, 임신전 체중, 신장, 유산횟수였다. 2. 임신중 직업을 가진군의 평균 임신기관과 조산율은 39.1주, 7.8%였고, 비직업군은 39.0주, 9.7%였다. 직업군에서 평균 출산아 체중과 저체중 출생아율은 3.228g, 5.4%였고 비직업군은 3,140g, 10.6%였으며, 통계적으로 유의한 차이를 보였다(p<0.05). 평균 자연유산 횟수와 자연유산 경험율은 직업군이 0.2회, 15.0%, 비직업군이 0.3회, 17.4%였다. 3. 연령이 35세 이상, 미숙아 출산력이 있는 경우 및 유산횟수가 2회 이상인 경우는 직업군의 조산율과 저체중 출생아율이 비직업군에 비해 높았으나 통계적 유의성은 없었다. 산과적 합병증이 없는 경우 조산율이 직업군에서 비직업군보다 높았으나 역시 통계적 유의성은 없었다. 4. 자연유산 경험률은 연령이 35세 이상, 학력이 중졸 이하 및 고졸, 산모의 신장이 163cm이상에서 직업군에서 비직업군보다 높게 나타났으나, 통계적 유의성은 없었다. 5. 조산과 관련성이 있는 요인의 영향을 고려했을 때 직장활동군에서 조산의 위험도가 낮았으나 통계적 유의성은 없었다. 6. 임신주수 및 저체중 출생에 관련이 있는 요인의 영향을 고려한 후 직업군에서 저체중 출산의 위험도가 낮았으며 통계적 유의성을 보였다(p<0.05). 7. 과거 유산에 관련이 있는 요인의 영향을 고려한 경우 직업군에서 유산경험율이 낮았으나 통계적 유의성은 없었다. 8. 직업이 교사, 의료인, 은행원, 공무원인 군은 비직업군보다 조산율과 저체중 출생아율이 낮았으며, 회사원은 비직업군에 비해 조산율은 낮았으나 저체중 출생아율은 높았다. 상업군은 조산율과 저체중 출생아율이 15.2%로 비직업군 및 다른 직업군보다 비교적 높았다. 유산경험율은 은행원, 의료인,공무원에서는 비직업군의 17.0%보다 낮았으나, 교사군과 회사원은 17.8, 17.9%로 높았고, 상업군은 33.3%로 다른 직업군에 비해 현저히 높았으며 비직업군에 비해 교차비가 1.42로 통계적 유의성이 있었다(p<0.05). To investigate the effect of maternal job activity on the preterm delivery, low birth weight infant and spontaneous abortion, 1646 delivery data were analyzed from Jan. 1991 to Dec. 1992 in Chungnam University Hospital. The results obtained were as follows; 1. The percentage of subjects who had job during pregnancy was 20.3% and the variables of maternal age, education level, prepregnancy weight, maternal height, number of abotion showed significant difference in the distribution of subjects whether they had job or not. 2. There were no significant difference between the group who had job during pregnancy and those who had no job in the mean gestational period, number of spontaneous abortion, rate of preterm delivery and spontaneous abortion. However mean birth weight and rate of low birth weight showed significant difference between the groups. 3. The rate of preterm delivery of the group who had job were higher than those who had no job activity in the subgroup of 35 years or more age, prematurity history presence, 2 or more abortion history, obstetric complication presence, but there were no significant difference. The rate of low birth weight also higher in the group who had job than those who had no job activity in the same subgroup except obstetric complication presence. 4. The rate of spontaneous abortion of the group who had job were higher than those who had no job activity in the subgroup of 35 years or more age, below high school, height of 163cm or above, but there were no significant difference. 5. Rate of preterm delivery still showed better results in the group who had job than the group who had no job when adjusted for variables related, but there was no statistical significance. 6. Rate of low birth weight still showed better results with statistical significance in the group who had job than the group who had no job when adjusted for variables related. 7. Spontaneous abortion had occured less frequently in the group who had job than the group who had no job when adjusted for variables related. 8. Rate of preterm delivery and low birth weight were lower in the group of teacher, bank clerk, medical personnel, citizen servant than the group who had no job, but higher in the job of company employee, commerce. Spontaneous abortion was most frequent in group of commerce, and the group of teacher, company employee showed higher rate of abortion than the group who had no job.

      • KCI등재

        인축적 미생물의 인방출과 세포내 저장물질 합성관계

        신응배,김미경,홍준혁,공동수 한국물환경학회 2004 한국물환경학회지 Vol.20 No.6

        Biological phosphorus removal is characterized by complex interactions between different intracellular components of energy as PHA. Therefore, fundamental understanding of the behavior of the intracellular components and their influence on the removal of phosphorus is essential before control strategies to stabilize the proper process. The purpose of this study is to investigate relationship between release of phosphorus and synthesis of intracellular storage polymer. Mass of stored intracellular storage polymer was 21.2 ㎎ PHA/L, 28.8 ㎎ PHA / g MLSS. And phosphorus release/ intracellular storage polymer synthesis rate was 1.8545 ㎎ stored polymer/㎎ Phosphate. In the aerobic phase, mass of PAOs synthesis is 49.37 ㎎ PAOs/L. And PAOs fraction was 6.7-6.9%. Thus intracellular storage polymer synthesis by PAOs is calculated as 493㎎ PHA / g PAOs.

      • 축류팬의 소음저감 설계에 관한 연구

        申澈洙,姜宇政,李東勳 충주대 산업과학기술연구소 1994 産業科學論文集 Vol.2 No.-

        This paper is to describe the design of the noise reduction of the axial flow fans. The nature and magnitude of the noise-producing mechanisms and the noise reduction are discussed on the basis of the results and theories published up to now. Sources of noise in axial fans can be classify into rotational and non-rotational noise. Rotational noise which is caused by inflow distortion and turbulence consists principally of tones related to the blade passage frequency. While, non-rotation noise which is caused by an interaction of the blade with the tip clearance vortex is broad band in character. The main parameters investigated for noise reduction in axial fans are as follows ; tip clearance, number of blade, chord length, camber angle, solidty, blade thickness, twisting angle, serrations attached on the blade, rotating shroud attached on the tip blade tip, bellmouth, etc.

      • 수열합성법에 의한 제조된 MCM-41에 담지된 4급암모늄염 촉매를 이용한 페녹시메틸에틸렌 카보네이트의 합성

        신동환,유병수,이화수,박대원 한국공업화학회 2003 응용화학 Vol.7 No.1

        In the present study, the synthesis of phenoxy methyl ethylene carbonate (PMEC) from carbon dioxide and phenyl glycidyl ether(PGE) was investingated using mesoporous chloropropyl-methyl-MCM-41-supported quaternary ammonium salt catalysts. The influence of the amounl of modifier and quaternary ammonium salt structure on the conversion of PGE was discussed. The MCM-41-immobilized quaternary ammonium salts showed good catalytic activity even at the atmospheric pressure of carbon dioxide, and it could be reused with easy seperation.

      • 학습부진아의 수학교수에 관한 문화기술적 연구 : 중학교 학생을 중심으로

        신동로,이수장,최낙복 全北大學校 敎育大學院 2002 敎育論叢 Vol.22 No.-

        The purpose of this study was to examine the teaching of mathematics to students labeled as low performing. An interpretive study of two urban middle school teachers is conducted to examine the bases for the teachers' decision making in the act of instructing mathematics to underachieving students. How one conducts such an examination is predicated on how one defines the act of teaching-as teacher of content or teacher of students. Both perspectives were essential to understanding the complexity of teaching mathematics to students most underserved by schooling(i.e. low SES). A variety of fields is drawn to formulate the theoretical framework. In particular, it was examined literature that addressed either the teaching of mathematics or the teaching of low SES children, since these demographic groups have traditionally exhibited low achievement levels in mathematics. These findings were coveraged in the theoretical framework and, for the purposes of this study, define the teaching of mathematics to low performing students as a function of (a) teachers' beliefs about mathematics, (b) beliefs about the reason for underachievement, (c) expectations for low performing students, (d) self-efficacy beliefs pertaining to teaching low performing students, and (e) student resistance. The findings reveal a similar journey for each teacher taken over one academic year. Teachers' initial plans reflected high expectations and senses of efficacy for raising the achievement of low performing students. These plans were largely a product of teachers' beliefs about the reasons for underachievement and external mandates such as the high-school entrance examination. Teachers held beliefs and practices that emphasized both procedural and conceptual mathematics. Student often resisted the portions of the teacher's initial practices that emphasized high-level mathematics and conceptual understanding. Teachers acquiesced to this resistance by defaulting to procedural ways of knowing and doing mathematics. The failure to engage students in learning high-level mathematics, emphasizing conceptual understanding, resulted in lowered expectations for low performing students and a reduced sense of efficacy for teaching these students.

      • AWRR 셀 스케쥴링 알고리즘

        신승수,신동화,지홍일,최승권,조용환 충북대학교 산업과학기술연구소 2002 산업과학기술연구 논문집 Vol.16 No.1

        The Binary Scheduling Wheel(BSW) algorithm was proposed to carry on manage buffer efficiently at implementing of WRR scheduler. But, BSW algorithm cause serous performance degradation of cell delay and maximum queue length because it allocates more weight than the weight allocated actually in VC and could not serve cell if the VC queue is empty. In this paper, we propose new BSW of the old BSW structure. Also, we develop a cell scheduling algorithm which is suitable for the new BSW structure. The proposed BSW structure and the developed algorithm are capable of maintaining the allocated weight of each VC correctly, and decrease average cell delay and average buffer length by serving other VC cell when the selected VC queue is empty, and increase cell service ratio as a whole. The evaluation results show that the proposed structure can implement WRR algorithm more efficiently than the old BSW.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼