• Title/Summary/Keyword: convergence test

Search Result 4,320, Processing Time 0.027 seconds

A Study on the Comparison of Educational Effects between Convergence Majors and Single Majors in R Lecture

  • Ryu, Gui Yeol
    • International Journal of Internet, Broadcasting and Communication
    • /
    • v.12 no.3
    • /
    • pp.18-24
    • /
    • 2020
  • The purpose of this paper is an analysis of the difference between convergence majors and single majors in the convergence core competency and educational performance. We used survey data for the analysis of the convergence core competencies, the results of the midterm and final exams for the education performance. Analysis targets are 10 students in big data business intelligence at Seokyeong University as convergence majors and 11 students in business administration as single majors. The target course was an analysis of economic data provided in the second semester of 2019. And the lecture contents were analysis of big data using R programming. The survey was conducted on December 5, 2019. The convergence core competences were creative thinking, critical thinking, understanding convergence knowledge, problem solving ability, communication skills, cooperation ability, use of convergence tools, consideration, and responsibility. As results of homogeneity tests, we found that there was no significant difference in all competencies, but there were very significant differences in the educational performance evaluated by the midterm and final exams. Therefore we can see willingness to convergence of single majors was no different from that of convergence majors, but had not led to practice. It is desirable to activate and support convergence courses.

Research on the Improvement of Convergence Characteristics of the Fast Decoupled Load Flow (고속분할법의 수렴특성 개선에 관한 연구)

  • Lee, In-Yong
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
    • /
    • v.25 no.5
    • /
    • pp.403-408
    • /
    • 2012
  • In this paper, we propose useful load flow algorithms called FEDL (fast enhanced decoupled load flow). The proposed load flow method can improve the convergence characteristics particularly when the P-Q coupling becomes significant and the power system operating states deviate from the conditions required for stable convergence of the FDL by reflecting in part the effects of the off-diagonal terms in the Jacobian. In our test with IEEE AEP-30 bus system and RTS-96 73-bus system, it converge even when the fast decoupled load flow (FDL) and its variations keeping load flow matrices constant experience convergence problems. Test results show promising performances of the proposed algorithms in their convergence characteristics both in number of iterations and overall convergence speeds.

The triple layer anode for flexible top emission organic lightemitting devices

  • Chung, Sung-Mook;Hwang, Chi-Sun;Lee, Jeong-Ik;KoPark, Sang-Hee;Yang, Yong-Suk;Do, Lee-Mi;Chu, Hye-Yong
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2007.08a
    • /
    • pp.698-701
    • /
    • 2007
  • A top emission organic light emitting diode comprising of a triple anode on polycarbonate $film/TNATA/NPB/Alq_3:C545T/cathodes$ has been fabricated. The triple layer structure of Cr/Al/Cr allowed for fabrication of a crack-free anode and provided better higher work function than ITO anode.The anode showed compatibility with flexible plastic substrate and no crack was formed during bending test while ITO anode showed crack.

  • PDF

Awareness and needs for integrated care convergence education among some health students (일부 보건계열 학생들의 통합돌봄 융합교육에 대한 인식 및 요구)

  • Hye-Eun Cho;Ji-Yeon Lee;Jong-Hee Han
    • Journal of Korean society of Dental Hygiene
    • /
    • v.24 no.1
    • /
    • pp.79-89
    • /
    • 2024
  • Objectives: This was carried out to develop an integrated care convergence curriculum. Methods: An online survey was conducted on 312 public health college students, and frequency analysis, t-test, ANOVA, and chi-square test were conducted. Results: Awareness of convergence education (2.55) and experience of convergence education (10.3%) were low, but those with education experience had high awareness of integrated care and convergence education (p<0.001). The need for education (3.07) and manpower training (3.14) were both high, and the preferred training content was first aid (3.57). Conclusions: Additional research is needed on the development of integrated care convergence curriculum.

Effects of Shoulder Rehabilitation Exercise Convergence Program on Pain, Range of Motion and Exercise Self-efficacy After Shoulder Surgery (어깨재활운동 융합프로그램이 어깨수술 후 통증, 관절운동범위 및 운동자기효능감에 미치는 효과)

  • Lee, Hye-Rim;Kim, Ju-Sung;Cho, Soo-Min
    • Journal of the Korea Convergence Society
    • /
    • v.9 no.4
    • /
    • pp.409-421
    • /
    • 2018
  • The purpose of this study was to examine the effects of shoulder rehabilitation exercise convergence program. This study used a nonequivalent control group pretest-posttest design. A sample of 58 patients undergoing shoulder surgery, was included. The experimental group was given shoulder rehabilitation exercise convergence program including audiovisual education, shoulder rehabilitation exercise and exercise monitoring. The data were collected using a structured questionnaire and measured range of motion(ROM) of shoulder joint and were analyzed using descriptive statistics, ${\chi}^2-test$, t-test and ANCOVA. The experimental group reported significantly lower shoulder pain than control group(p<.001). Shoulder joint ROM and exercise self-efficacy were significantly higher in the experimental group than in the control group(p=.038; p<.001). This findings indicate that shoulder rehabilitation exercise convergence program can be an effective intervention for shoulder surgery patients. Continued development of convergence interventions for patients undergoing various conditions in practice, is suggested.

A Convergence Study of Cervical Cancer Knowledge and Cervical Cancer Preventing Behavioral Intention according to Cervical Cancer Preventing Behavior Type among Unmarried Women (미혼 여성의 자궁경부암 예방활동 유형에 따른 자궁경부암 지식과 자궁경부암 예방행위 의도의 융합적 연구)

  • Lim, Youngsook;Cho, Haeryun
    • Journal of the Korea Convergence Society
    • /
    • v.8 no.10
    • /
    • pp.95-104
    • /
    • 2017
  • The purpose of this convergence study is to understand the knowledge of cervical cancer and its prevention of cervical cancer in unmarried women. 216 women were collected through self-report questionnaires and analyzed by SPSS program. In result, human papilomavirus vaccination was performed in 33.9%, pap test was performed in 7.9%. The human papilomavirus vaccination and pap test group were 6.7% and human papilomavirus vaccination or pap test group were 28.5%. According to the cervical cancer prevention activities, several differences were detected in the family history of cervical cancer, subjective norms of cervical cancer prevention, perceived behavioral control, and behavioral intention. Therefore, it is important to increase susceptibility of the prevention of cervical cancer in unmarried women, and it is important for the health professionals to perform the most meaningful support system preventing cervical cancer in unmarried women. In addition, various policies should be actively promoted that unmarried women participate in the prevention of cervical cancer actively.

On the New Design of a 4-Port TEM Waveguide with a Higher Cutoff Frequency and Wider Test Volume

  • Jeon, Sangbong;Yun, Jaehoon;Park, Seungkeun
    • ETRI Journal
    • /
    • v.34 no.4
    • /
    • pp.621-624
    • /
    • 2012
  • A new miniaturized 4-port waveguide generating a transverse electromagnetic wave is proposed. The waveguide presents enhanced performance of higher field uniformity in extended test volume up to an increased test frequency limit compared to that of the conventional 2-port waveguide. The advantageous features of the proposed waveguide have been obtained through a new design scheme based on effective miniaturization maintaining good impedance matching. Consequently, we can provide a more accurate electromagnetic compatibility test method, covering larger devices operating in higher frequencies, which is a marked improvement upon the conventional approaches.

Development of a Lifetime Test Bench for Robot Reducers for Fault Diagnosis and Failure Prognostics (고장 진단 및 예지가 가능한 로봇용 감속기 내구성능평가 장치 개발)

  • Shin, Ju Seong;Kim, Ju Hyun;Kim, Jong Geol;Jin, Maolin
    • Journal of Drive and Control
    • /
    • v.16 no.3
    • /
    • pp.33-41
    • /
    • 2019
  • This study presents the development of a lifetime test bench for the strain wave reducer which is a precision gear reducer of the robot to realize fault diagnosis and failure prognostics. To this end, the lifetime test bench was designed to detect the vertical forward/reverse direction rotation load. Through the lifetime test bench, it is possible to apply the same load spectrum from robot working scenarios. We developed a data integration gateway for fault data collection. Through the development of dedicated software for fault diagnosis and failure prognostics, these data from vibration, noise and temperature sensors were collected and analyzed along with the operation of the lifetime evaluation.

The Convergence of Poverty Rates among States across the U.S.

  • Kim, Yung-Keun
    • Journal of Korea Society of Industrial Information Systems
    • /
    • v.23 no.3
    • /
    • pp.131-142
    • /
    • 2018
  • Since income growth rate and poverty level are related, there is a possibility that the poverty rate may converge in the long run steady state as well. If the poverty rate converges, then for this study the state that begins with the high poverty rate would have a higher poverty reduction rate. To examine the convergence of poverty rate among the US states, this study uses two times series methodologies. First, in order to prevent the power loss from ignoring the structural break when testing for a unit root in a single time series, this study employs the newly developed panel LM unit root tests with level and trend shifts. The results of unit root tests of the log of poverty rate without allowing for structural breaks show that twenty six states reject the null hypothesis of unit root test for the ADF test, twenty five states for the LM test, and thirty five states for the RALS-LM test. The result of unit root tests that allow one structural break shows that the null hypothesis of a unit root test is rejected for twenty two states with the LM test, and thirty three states with the RALS-LM test. This supports poverty rates are converging among US states.

Characteristic of Elastic Paving Materials in Bicycle Road using Polyurethane (폴리우레탄을 이용한 자전거도로의 탄성포장재 특성)

  • Lee, Young-Sei
    • Journal of the Korean Society of Industry Convergence
    • /
    • v.17 no.1
    • /
    • pp.7-14
    • /
    • 2014
  • In this study, characteristic of elastic paving materials in bicycle road using polyurethane were studied experimentally. As a results, following their good result was obtained. Bicycle road packaging materials are flexural strength g test, ratio of mass change after freezing and thawing, repulsion elasticity test, water Permeation coefficient test and slip resistance test results showed good performance.