• Title/Summary/Keyword: journal

Search Result 1,111,137, Processing Time 0.316 seconds

Operating Characteristics of Counterrotating Floating Ring Journal Bearings

  • Cheong, Yeon-Min;Kim, Kyung-Woong
    • KSTLE International Journal
    • /
    • v.2 no.2
    • /
    • pp.127-132
    • /
    • 2001
  • The steady state performance of the counterrotating floating ring journal bearings is analyzed with isothermal finite bearing theory. The effect of counterrotating speed of the sleeve on the performance of the bearing is investigated. It is shown that counterrotating floating ring journal bearings can have considerable load capacity at the same counterrotating speeds, while conventional circular journal bearings with one fluid film cannot. Investigating the relationship between the frictional torques exerted on the ring due to the inner and outer films and the rotational speed of the ring, the stability of the equilibrium state is identified and the operating characteristics of the counterrotating floating ring journal bearing according to the method of acceleration or deceleration of the rotational speeds of the journal and sleeve are clarified. It is theoretically confirmed that floating ring journal bearings can be used in counterrotating journal-bearing system and become good substitutes for rolling bearings in counterrotating systems.

  • PDF

Structured Electronic Journal for Scientific Collaboration (학문적 협력을 돕기 위한 구조적 전자저널)

  • Yongmoo Suh
    • The Journal of Information Technology and Database
    • /
    • v.3 no.2
    • /
    • pp.53-73
    • /
    • 1996
  • Thesedays more collaboration is required of scholars than before, because some complex problems are beyond the individuals' research capability. Traditional print-based journal systems have been playing a role of supporting scientific collaboration, in that they provide the state-of-the-art knowledge. Those journal systems, however, are known to have some problems. To cope with some of those problems of the print-based journal systems, electronic journal systems have been suggested and implemented. Investigation shows us that electronic journal systems still have some problems. This paper proposes a new form of electronic journal system, structured electronic journal system, which is believed to better support the scientific collaboration. It is designed so that it is easier to figure out the synopsis of an article and so that authors and referees of a submitted paper can participate in the discussion for verifying the significance of the paper. Object-oriented design of a structured electronic journal system which is to be built on top of a object-oriented database system is explained with example structures.

  • PDF

Research Trends and Suggestions on Korean Knit Field Centered around Domestic Journal Papers between 1980 and 2006

  • Hong, Kyung-Hee;Choi, In-Ryu
    • The International Journal of Costume Culture
    • /
    • v.12 no.2
    • /
    • pp.107-120
    • /
    • 2009
  • This research extracted and analyzed 54 papers on knit field published in "The Research Journal of the Costume Culture", "Journal of The Korean Society of Clothing and Textiles", "The Journal of The Korean Society of Costume", "The Science and Technology of Clothing Appearance and Fit", "Journal of The Korean Society of Design Culture", "Textile Science and Engineering (Formerly Journal of the Korean Fiber Society", "Journal of The Korean Society for Clothing Industry", "Journal of the Korean Living Science Association", and "Journal of The Korean Home Economics Association" to analyze papers on knit field in textile science in depth. The result of the research shows that the number of papers is small compared to other fields and it is being researched limitedly due to relatively high ratio of subjects such as designs and patterns, knit hand assessment, and manufacturing fashion trends.

  • PDF

An Improvement of the Stability of Plane Journal Bearing using Leaf Spring Damper (겹판스프링댐퍼를 이용한 저어널베어링의 안정성 향상)

  • 김종수;최영준;제양규
    • Tribology and Lubricants
    • /
    • v.17 no.3
    • /
    • pp.179-184
    • /
    • 2001
  • In order to improve the instability of plane journal bearing, it is introduced the leaf spring damper(LSD). The effects of dynamic characteristics of LSD on the stability of a plane Journal bearing were investigated theoretically. The improvements on the stability of a plane journal bearing with LSD are compared with the results of a floating ring journal bearing and of journal bearing without LSD. It found that a plane journal bearing with LSD will be an effective way in the improvement on the stability of rotor system.

Self-assessment and perspectives on 'The Journal of Medicine and Life Science' ('의생명과학' 현황 분석 및 제언)

  • Yoon, Sang-Pil
    • Journal of Medicine and Life Science
    • /
    • v.15 no.1
    • /
    • pp.31-35
    • /
    • 2018
  • 'The Journal of Medicine and Life Science' renewed editorial board and guidelines for authors, and opened online submission system (http://www.jops.co.kr/ojms/JMLS). Herein I, editor-in-chief of 'The Journal of Medicine and Life Science', did self-assessment on the history and current status of the journal and suggested perspectives on the journal.

What is the position of Clinical and Experimental Reproductive Medicine in its scholarly journal network based on journal metrics?

  • Huh, Sun
    • Clinical and Experimental Reproductive Medicine
    • /
    • v.41 no.4
    • /
    • pp.147-150
    • /
    • 2014
  • Objective: Clinical and Experimental Reproductive Medicine (CERM) converted its language to English only beginning with the first issue of 2011. From that point in time, one of the goals of the journal has been to become a truly international journal. This paper aims to identify the position of CERM in its scholarly journal network based on the journal's metrics. Methods: The journal's metrics, including citations, countries of author affiliation, and countries of citing authors, Hirsch index, and proportion of funded articles, were gathered from Web of Science and analyzed. Results: The two-year impact factor of 2013 was calculated at 0.971 excluding self-citation, which corresponds to a Journal Citation Reports ranking of 85.9% in the category of obstetrics and gynecology. In 2012, 2013, and 2014, the total citations were 17, 68, and 85, respectively. Authors from nine countries contributed to CERM. Researchers from 25 countries cited CERM in their articles. The Hirsch index was six. Out of 88 original articles, 35 studies received funds (39.8%). Conclusion: Based on the journal metrics, changing the journal language to English was found to be successful in promoting CERM to international journal status.