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

      • 좁혀본 항목

      • 좁혀본 항목 보기순서

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

        오늘 본 자료

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

          메타데이터 기반 학술지 논문 종합 목록 시스템 설계 및 구현

          최한석 한국정보관리학회 2001 정보관리학회지 Vol.18 No.2

          인터넷 및 정보기술의 급속한 발전에 따라 기존의 도서관은 원문위주의 서비스를 제공하는 도서관으로 변화되고 있다. 본 논문에서는 메타 데이터 기반 논문 종합목록 시스템을 설계하고 구현한다. 학술지 논문 종합 목록을 위한 메타데이터 접합은 더블린 코어 메타데이터 요소 중 12개를 선택하고 소장요소를 추가 제안한다. 본 논문에서 설계 구현한 학술지 논문 종합 목록 시스템은 웹 브라우저 및 Z39.50 프로토콜을 이용하는 온라인 공동 목록 시스템과 학술지 논문 종합 목록시스템 그리고 학술지 논문 통합 검색 서비스로 구성된다. 또한 학술지논문에 대한 통합 검색 또는 기사 색인 검색 결과에 따라 초록보기, 목차보기, 원문보기 등의 서비스가 제공되고, 복사/팩스 서비스 시스템과 연계된다. As the rapid develoment of internet and information technology, the traditional library has been altered to the digital content service based on the world wide web. This paper proposes a design and implementation of an Artcle Union Catalog System(AUCS) based on metadata. The metadata set for the AUCS consists of twelve Dublin Core elements and one holdings element. The qualifiers of the proposed metadata elements are also represented. The AUCS system has an online cooperated cataloging system using the web interface or the 239.50 protocol, an union cataloging management system, and an integrated information retrieved system service. The integrated search and retrieval service of the AUCS displays not only the summary and detailed bibliographic information, but also the abstract, the table of contents, the digital content, and the copylfax service.

        • KCI등재
        • KCI등재

          실시간 디바이스 관리 및 안전한 이벤트 처리를 위한 고가용성 RFID 미들웨어

          최한석 한국정보과학회 2012 데이타베이스 연구 Vol.28 No.3

          RFID middleware is a system that transmit the safe events from the low-level RFID hardware like readers and tags to the enterprise information system. However, the current RFID readers provide a variety of transmission protocols and different tag structures depending on the specific RFID reader company. This paper proposes a fault-tolerant RFID embedded middleware system performing the real-time device management and safe tag events processing regardless of any readers. This fault-tolerant RFID embedded middleware provides the reader adapters of each reader manufactures and device manager to configure readers and antennas in real time. RFID 미들웨어는 RFID 응용 시스템에게 저 수준의 RFID 이벤트를 안전하게 전달해주는 시스템이다. 그러나 RFID 리더기는 제조사별 다양한 통신 제어구조 및 각기 다른 태그 코드를 지원하고 있다. RFID 응용프로그램을 효과적이고 빠르게 개발하기 위해서는 저수준의 RFID 이벤트를 안전하게 상위 수준의 응용 시스템에게 전달하는 고가용성 RFID 미들웨어가 절실히 요구된다. 본 논문에서는 실시간으로 RFID 디바이스를효과적으로 관리할 수 있을 뿐만 아니라, 저 수준에서 발생하는 RFID 이벤트 프로세스를 안전하게 관리할 수있는 고가용성 RFID 미들웨어를 제안한다. 본 논문에서 제안하는 고가용성 RFID 미들웨어는 안테나 및 RFID 리더기를 제조사별로 구분하고 제조사별 어댑터를 구현하여 RFID 디바이스를 상시 모니터링을 할 수 있는실시간 관리기능을 제공한다.

        • 소성인산칼륨비료에 관한 연구

          최한석 고려대학교 공학기술연구소 1970 고려대학교 생산기술연구소 연구보고 Vol.1 No.1

          TGA and DTA curves of mixture of apatite and alunite have been. studied by comparing with TGA curves of apatite and alunite. It is concluded that calcind calcium phosphate fertilizer containing citric soluble P₂O_5 and soluble K₂O by calcination of mixture of apatite and alunite can be produced. The mixture of apatite (- 250 mesh) and alunite (-200 mesh) of 1:1 ratio by wt. was calcined up to 870 ℃from room temp. for 170 min. and a product containing 17.14% of C-P₂O_5 and 4.25% of W-K₂O + C-K₂O was obtained. It is found by means of X-ray diffarction analysis that the citric solubility of P₂O_5 of calcined mixture is oweing to the formation of Ca₂ P₂O_7.

        • KCI등재

          Underwater Hook Design by Curved Beam Theory

          최한석 한국해양공학회 2007 韓國海洋工學會誌 Vol.21 No.2

          A simple design method was established for underwater hooks or open pulling heads using the curved beam theory. The design method includes the curved beam theory and derived formulas. This method is ready to include the non-linear stress/strain relationship for arbitrary cross sectional shapes of hooks. The weight of an underwater hook or open pulling head is an important factor for the design of the adjacent structures and connecting cables. Therefore, weight of the underwater hooks or open pulling heads should be minimized, and operated easily with the least risk. However, the minimized size of the hooks should resist any local deformations during the pulling operation. Recent underwater pulling operations at the Gulf of Mexico proved that this design method is valid and very practical.1. Introduction

        • [특집 원고] 스마트 Mobile Application 특집: 모바밑 플랫폼에 독립적인 스마트폰 앱 개발 방법

          최한석 한국스마트미디어학회 2013 It's Smart Media Vol.2 No.1

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        • KCI등재후보

          노인의 골다공증 관리

          최한석 대한임상노인의학회 2019 대한임상노인의학회지 Vol.20 No.2

          The prevalence of osteoporosis increases with growing elderly population. Osteoporosis-related fractures causes significant mor-bidity and disability, impedes quality of life, and even leads to death among older people with osteoporosis. As health care expenditures sharply increase in developed countries, osteoporosis and related fractures has become to the top public health issues in these countries. In particular, Asians are expected to be the most commonly affected race and ethnicity by osteoporotic fractures with rapidly aging population of their countries. Nevertheless, osteoporosis and osteoporotic fractures are still both underdiagnosed and undertreated. Osteoporosis management can be divided into non-pharmacological and pharmacological treatments. Non-pharmacological treatments include nutrition, exercise, and fall prevention. Older people tend to have low calcium intake and vitamin D deficiency. Furthermore, sarcopenia, gait and balance impairment of osteoporotic older people lead to negative consequences, including falls, injuries, and disability. Pharmacological treatments include selective estrogen receptor modulators, bisphosphonates, anti-receptor activator of nuclear factor-kappa B ligand antibody, and parathyroid hormone. Compared with the youngers, the absolute risk reduction of osteoporotic fractures by pharmacological agents is larger among older people because older people pose higher risk of falls and injuries even after falling risk is adjusted by age. Therefore, older people obtain more benefits from anti-osteoporotic agents than the counterpart youngers. We need further researches to provide more accurate assessment of osteoporosis and allow more proactive managements for older people with osteoporosis.

        • KCI등재

          Design and Implementation of an Automated Fruit Quality Classification System

          최한석 (사)한국스마트미디어학회 2018 스마트미디어저널 Vol.7 No.4

          Most of fruit quality classification has been done by time consuming, inaccurate and intensivemanual labor. This study proposed an automated fruit grading system based on appearances andinternal flavors. In this study, image processing technique and a weight checker were used tomeasure the value of appearance features and the near infrared spectroscopy analysis method wasused to estimate the value of internal flavors. Additionally, I suggested 8x8x5x5 ANN based fruitquality classifier model to grade fruits quality. The proposed automated fruit quality classificationsystem is expected to be very beneficial for many farms where heavy manual labor is usually neededfor fruit quality classification.

        • SCOPUSKCI등재

          稀土類中 토리움의 分離定量 에 관하여 (第一報) 過酸化水素法에 對한 檢討

          최한석,박순자,Choi, Han-Suk,Park Soon Za 대한화학회 1957 대한화학회지 Vol.4 No.1

          On the performance of the hydrogen peroxide method for Th-determination we encountered some difficulties, namely the formation of the insoluble matter occured in the nearly neutral solution after evaporation. We carried out the Th-determination in the mixture of the Th and some kind of the rare earth, and found that the insoluble matter was not formed in case of the mixture of Th and some kind of rare earth, but formed in case of Monazite. The formation of the insoluble matter in the case of Monazite sand, however, could be avoid by using the beaker instead of the evaporating dish and by adding the water repeatedly before it was completely evaporated to dryness.

        맨 위로 스크롤 이동