• Title/Summary/Keyword: Analysis program

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A New Approach to HVDC System Control for Damping SSO Using the Novel Eigenvalue Analysis Program

  • Kim, Dong-Joon;Nam, Hae-Kon;Moon, Young-Hwan
    • KIEE International Transactions on Power Engineering
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    • v.4A no.4
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    • pp.178-191
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    • 2004
  • This paper presents a new approach to HVDC system control for damping subsynchronous oscillation (SSO) involving HVDC converters and turbine generator shaft systems. This requires a novel eigenvalue analysis (NEA) program, derivation of HVDC system modeling considering steady-state conditions and dynamic conditions in the combined AC/DC system, and an appropriate control scheme. The method suggested makes possible the design of a subsynchronous oscillation damping controller (SODC) to provide positive damping torque for the range of torsional modes in combined AC/DC systems. There are three steps involved in the design of a SODC; first the worst torsional mode is determined using the NEA program, next the SODC parameters are designed for the range of that torsional mode, and then finally an off-line simultaneous time domain program such as PSCAD/EMTDC is used to verify the parameters of the SODC. The suggested SODC design method is applied to two AC/DC systems, and its practicality is verified using the PSCAD/EMTDC simulation program.

An Analysis on the Science Gifted Education Recipients' Perception for Education Program using an Importance-Performance Analysis (IPA 기법을 활용한 과학영재교육 수혜자들의 교육프로그램에 대한 인식 분석)

  • Park, Kyeong-Jin;Ryu, Chun-Ryol;Choi, Jinsu;Jung, Hyun-Chul
    • Journal of Gifted/Talented Education
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    • v.26 no.3
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    • pp.427-447
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    • 2016
  • The purpose of this study was to investigate science gifted education recipients' perception through importance-performance analysis regarding gifted education program, and explore reinforcements and improvements for providing an education program to meet the needs of science gifted. For this study, we developed an questionnaire and conducted a survey of 288 university students who had experience of receiving science gifted education. The collected data was analyzed by SPSS 20.0 in order to analyze difference between importance and performance which recipients perceived, paired t-test was conducted. Moreover, to investigate improvements for education program, Importance-Performance Analysis(IPA) was conducted. We deduced the following from the analysis. The performance is in general lower than the importance which recipients perceived regarding experienced education program. There was a differential needs in the type of education program depending on the school level. In other words, they were perceived 'education based on experiences' as effective education program for elementary school students; 'education based on inquiry activities' for middle school students; and 'education based on research activities 'for high school students. But, career education and leadership program was included in domain of urgent improvement regardless to the school level. This study has different signification from previous research in that was analyzed gifted education program considering the splashdown effect.

Analysis of Knowledge and Attitude of Applicants of Trainers for Self-help Program of Arthritis Patients (관절염 환자의 자조관리과정 강사지원자의 지식 및 태도 분석)

  • 대한류마티스 건강전문학회 교육부
    • Journal of muscle and joint health
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    • v.6 no.2
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    • pp.310-316
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    • 1999
  • The purpose of this study is to analyze the knowledge and attitude of applicants on self-help teacher's program for arthritis patients. Subjects of the study constituted 407 applicants who attended the self-help teacher's program for arthritis patients. Self report questionnaires were used to measure the knowledge about arthritis and the attitude toward self-help education. In data analysis, SPSS PC 9.0 Program was utilized for descriptive statistics and one-way anova analysis. The results were as follows : Average age of the participants were 37, while 62% married, 62% had 4-year or above education, and 32.7% had experience of community health nursing. The mean score of knowledge about arthritis was 17.99/28 ; the mean score of applicants' appraisal on the arthritis patients' ability of self-help was 31.66/40 ; the mean score of applicants' attitude toward self-help education for arthritis patients was 35.64/56. According to regions of education for applicants' self-help program, there were not significant differences in applicants' knowledge and appraisal and attitude on self-help program.

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Health Economics Evaluation of a Gastric Cancer Early Detection and Treatment Program in China

  • Li, Dan;Yuan, Yuan;Sun, Li-Ping;Fang, Xue;Zhou, Bao-Sen
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.13
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    • pp.5133-5136
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    • 2014
  • Objective: To use health economics methodology to assess the screening program on gastric cancer in Zhuanghe, China, so as to provide the basis for health decision on expanding the program of early detection and treatment. Materials and Methods: The expense of an early detection and treatment program for gastric cancer in patients found by screening, and also costs of traditional treatment in a hospital of Zhuanghe were assessed. Three major techniques of medical economics, namely cost-effective analysis (CEA), cost-benefit analysis (CBA) and cost-utility analysis (CUA), were used to assess the screening program. Results: Results from CEA showed that investing every 25, 235 Yuan on screening program in Zhuanghe area, one gastric cancer patient could be saved. Data from CUA showed that it was cost 1, 370 Yuan per QALY saved. Results from CBA showed that: the total cost was 1,945,206 Yuan with a benefit as 8,669,709 Yuan and an CBR of 4.46. Conclusions: The early detection and treatment program of gastric cancer appears economic and society-beneficial. We suggest that it should be carry out in more high risk areas for gastric cancer.

The Effects of College Students' Perceived Value of and Satisfaction with Loyalty Programs on Customer Loyalty in Fashion Firms (패션업체 로열티 프로그램에 대한 대학생의 지각된 가치와 만족이 충성도에 미치는 영향)

  • Ju, Seong-Rae;Chung, Myung-Sun
    • The Research Journal of the Costume Culture
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    • v.20 no.3
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    • pp.378-391
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    • 2012
  • Loyalty programs are used by many fashion firms as marketing tools for reducing customer switching and increasing customer loyalty in keen market competition conditions. The purpose of this study is to explore and propose an effective implementation of a loyalty program for a targeted fashion firm's customers by grasping their perceived value of and satisfaction with the loyalty program. Questionnaires were administered to 329 college students in Gwangju. For data analysis, factor analysis, Chronbach's ${\alpha}$, correlation analysis, and a Structural Equation Model using the LISREL 8.30 program were applied. The results were as follows. First, the degree of perceived value of the loyalty program was classified according to cash value, convenience of use, aspirational value, and suitability of use. The aspirational value and cash value significantly affected the students' satisfaction with the loyalty program, but the convenience of use and suitability of use were not significant. Second, higher satisfaction with the loyalty program was related to higher overall customer satisfaction but did not affect customer trust and loyalty. Finally, higher overall satisfaction was related to customer trust but did not affect customer loyalty, and higher trust affected customer loyalty.

A study on the TV reality show program's visual format and narrative structure :its an analysis of TV program's with 'Scandals' (TV 리얼리티 프로그램의 영상구성과 서사구조에 관한 연구: <스캔들>의 내용 분석으로 중심으로)

  • Hahm, Hyun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.8 no.6
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    • pp.1648-1654
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    • 2007
  • The purpose of this study is to understand how the reality show program spread into global with a variety effects on social and cultural phenomenon, and textual analysis of TV reality show program 'Scandals' with a specific status. As a result of this study shows that TV reality show program 'Scandals' involves in a characteristic and a diversity of TV genre. On the other hand, textual analysis of TV reality show program 'Scandals' is about understanding the situation which create meaning in TV industry with a negative aspects of phenomenon. More over, TV industry creates lower cultural aspects of situation relate in someway to the target audiences to whom they are aimed.

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A Study On Artifacts Analysis In Portable Software (무 설치 프로그램에서의 사용자 행위 아티팩트 분석)

  • Taeyeong Heo;Taeshik Shon
    • Journal of Platform Technology
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    • v.11 no.2
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    • pp.39-53
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    • 2023
  • Non-installation program (hereinafter referred to as "portable program") is a program that can be used without an installation process, unlike general software. Since there is no separate installation process, portable programs have high mobility and are used in various ways. For example, when initial setup of multiple PCs is required, a portable program can be stored on one USB drive to perform initial setup. Alternatively, when a problem occurs with the PC and it is difficult to boot normally, Windows PE can be configured on the USB drive and portable programs can be stored for PC recovery. And the portable program does not directly affect PC settings, such as changing registry values, and does not leave a trace. This means that the portable program has high security. If a portable program is deleted after using it, it is difficult to analyze behavior in a general way. If a user used a portable program for malicious behavior, analysis in a general way has limitations in collecting evidence. Therefore, portable programs must have a new way of behavioral analysis that is different from ordinary installation software. In this paper, after installing the Windows 10 operating system on a virtual machine, we proceed with the scenario with a portable program of Opera and Notepad++. And we analyze this in various ways such as file analysis of the operating system and memory forensics, collect information such as program execution time and frequency, and conduct specific behavioral analysis of user.

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Development of Ultrasonic Defect Analysis Program for a Composite Motor Case (복합재 연소관의 초음파 결함 분석 프로그램 개발)

  • Kim, Dong-Ryun;Lim, Soo-Yong;Chung, Sang-Ki;Lee, Kyung-Hoon
    • Journal of the Korean Society of Propulsion Engineers
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    • v.16 no.2
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    • pp.65-72
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    • 2012
  • A defect analysis program for a composite motor case was developed to apply the ultrasonic signal processing method, based on the ultrasonic pulse-echo method. With the proposed defect analysis program, defects of FRP delamination and FRP/Rubber disbond in the composite motor case could be quantitatively measured. The defects detected in the composite motor case were in good agreement with the results measured with the computed tomography and video microscope. This paper described the development process of the defect analysis program to convert the ultrasonic test data into the C-Scan images.

Effects of Breastfeeding Interventions Program on Breastfeeding for Premature babies: A Systematic Review and Meta-analysis (미숙아를 위한 모유수유 중재 프로그램의 효과: 체계적 문헌고찰과 메타분석)

  • Lee, Ju Yeon;No, Se Hee
    • Korean Parent-Child Health Journal
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    • v.21 no.1
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    • pp.50-60
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    • 2018
  • Purpose: This study is a systematic literature review and meta-analysis study conducted to identify the effects of breastfeeding intervention program on premature infants by integrating and analyzing the results of randomized controlled trials and non-randomized trials. Methods: The literature review process was based on the PRISMA (Preference Reporting Items for Systematic Reviews and Meta-Analyzes) guideline. Data retrieval and collection were conducted from May 25 to May 30, 2018, and the articles analyzed were all domestic papers retrieved from the database. Two reviewers independently select the studies and assessed methodological risk of bias of studies using the Cochrane criteria. The topics of breastfeeding interventions were analyzed using descriptive analysis and the effects of intervention were meta-analyzed using the R program. Results: Finally, eight papers were included in the systematic review and meta-analysis. The breastfeeding intervention program for premature infants showed a significant increase in the self-efficacy and the amount of pumping and baby's hight. Conclusion: This study has some limitations due to the few randomized controlled trials and non-randomized trials comparing breastfeeding for premature babies in Korea. Therefore, it needs to be integrated with the research conducted in other countries.

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The Relationship of Elementary After-school Physical Activity Program Satisfaction on Commitment and Intention of Continuing Involvement (초등학교 방과 후 신체활동 프로그램 만족이 몰입 및 지속적 참여의도에 미치는 관계)

  • Woo, Jung-Wook;Mun, Sun-Ho
    • Journal of Fisheries and Marine Sciences Education
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    • v.27 no.1
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    • pp.29-40
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    • 2015
  • This study analyzed the relationship of elementary after-school physical activity program satisfaction on commitment and intention of continuing involvement. Of the subjects residing in the P City to participate in after-school physical activity program for elementary school students in using convenience sampling, 228 people were sampled. This research made a frequency analysis and reliability analysis of the obtained data using SPSS 17.0 program while making a correlation analysis, confirmatory factor analysis and structural equation model analysis using AMOS 7.0. were also used. Research results are as follows. First, the satisfaction of the leaders had influenced on the commitment. second, the satisfaction of the facility had influenced on the commitment. third, the satisfaction of the leaders hadn't influenced on the intention of continuing involvement. fourth, the satisfaction of the facility hadn't influenced on the intention of continuing involvement. fifth, the commitment had influenced on the intention of continuing involvement.