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‘간호와 보건연구’ 게재논문의 연구동향 분석(1996∼2018년)
박현영(Park, Hyunyoung),곽경원(Kwak, Kyung-Won),곽재희(Gwak, Jae-Hui),권정현(Kwon, Jung-Hyun),김태영(Kim, Tae-Young) 전남대학교 간호과학연구소 2020 Nursing and Health Issues(NHI) Vol.25 No.2
Purpose: This study aimed to identify trends in research papers published in the Nursing and Health Issues Journal from 1996 to 2018. Methods: In total, 228 studies were reviewed. Data was collected using a structured format which involved an analysis of the research methodology and keywords. Descriptive statistics were used to analyze data. Results: 77.2% of the studies involved quantitative research. The most frequently used study designs for experimental research and non-experimental research were quasi-experimental (23.9%) and survey (68.8%), respectively. Study participants were mainly patients (49.2%) and were mostly selected through convenience sampling (35.1%). Questionnaires were used for data collection in 56.8% of the research papers. Descriptive statistics (51.9%) and t-test (12.0%) were the most frequently used data analysis methods. Only 4.2% of these papers obtained an Institutional Review Board (IRB) approval. 53.6%, or over half, of the keywords were not matched with the Medical Subject Headings (MeSH) terms. While the majority of keywords related to the health domain (48.1%), the most frequently used keyword was “nursing students” in the human domain. Conclusion: To improve the quality of Nursing and Health Issues, future studies need to include various research methods. Furthermore, IRB approval should be required for human subjects research. Researchers are encouraged to use the MeSH terms for keywords.
김정태,이인철,정인상,곽경원 대한금속재료학회(대한금속학회) 1997 대한금속·재료학회지 Vol.35 No.11
The steel for use as a Reactor Pressure Vessel(RPV) should have the high resistance to thermal fatigue, because it is run in high pressure water vapor of about 288℃ and exposed, in addition, to the irradiation of neutron constantly. In this work, low cycle fatigue characteristics of the three kinds of steels has been investigated, which are produced by different steel making processes, i.e. the conventional Vacuum Carbon Deoxidation(VCD) process, the method of adding Al to the former for the purpose of grain refining, and the method to use Si-killing process in place of VCD and also to add Al. The material made by VCD+Al and Sikilled+A1 process exhibited longer fatigue life than the specimen produced by VCD. This result is mainly caused by the difference in grain size, and the morphological difference at each specimen. The distribution of carbides in bainite structure is also thought to have an effect on their mechanical properties to some extent.