• Title/Summary/Keyword: preliminary study

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A Preliminary Design Procedure for Seismic Retrofit Using Hysteretic Dampers (이력형 감쇠장치를 이용한 내진보강 예비설계절차)

  • Jeong, Gook-ki;Yu, Eunjong
    • Journal of the Earthquake Engineering Society of Korea
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    • v.26 no.2
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    • pp.59-69
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    • 2022
  • The use of dampers is being considered a means to improve the seismic performance of buildings. It may take considerable time and effort to find an optimal design solution since repeated three-dimensional nonlinear time history analyses are required. Therefore, a preliminary design procedure for seismic retrofit using hysteretic dampers was proposed in this study. In the proposed procedure, the amount of retrofit (required number of dampers) is estimated from the capacity curve of the building before retrofit and allowable story drift of the building. In combining the capacity curves of the building and the dampers, the deformation demand for the dampers can be easily checked against their deformation capacity. The equations to transform the device displacement to roof displacement for the combination of capacity curves are developed. The proposed procedure was applied to the seismic retrofit design of sample buildings. The study found that the estimated capacity curve was very close to the actual capacity curve obtained from the pushover analysis, which can determine an appropriate configuration to meet the required seismic performance.

A Study on Measurement of Heartrate and Respiration during Sleep using Doppler Radar: Preliminary Study (도플러 레이더를 이용한 수면 중의 심박 및 호흡 측정: 예비연구)

  • Lim, Yong Gyu
    • Journal of Biomedical Engineering Research
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    • v.38 no.5
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    • pp.264-270
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    • 2017
  • A Doppler radar sensor was applied to detect respirations and heartbeats of persons who were lying on a bed. This study is preliminary study aiming at non-contact and non-intrusive respiration and heart rate monitoring during sleep in daily life. For the experiments, 10GHz Doppler radar with patch-type antenna was used and installed on the upper right and the distance between the body and the antenna was 1 m. The results show that each signal of respiration and heartbeat is observed in each frequency band however the frequency band and the waveform vary according to the subjects and the posture. The results show that the heartbeats can be detected with the peak detection in some frequency band. This study shows the feasibility of applying the Doppler radar to detection of heartbeat and respiration during sleep and further studies about heartbeat detection algorithm are required.

Actual Condition on Preliminary Educational Organizations of Sinheung Military Academy Confirmed from Manjugisa by Yi Sang-nyon - Focused on Liuhexian·Tonghuaxian (석주(石洲) 이상룡(李相龍)의 「만주기사(滿洲紀事)」 분석을 통해 본 신흥무관학교(新興武官學校)의 하급교육기관 실태 - 유하(柳河)·통화현(通化縣)을 중심으로 -)

  • Park, Sung-soon
    • (The)Study of the Eastern Classic
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    • no.67
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    • pp.173-201
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    • 2017
  • Sinheung Military Academy was the first one which prepared for independence war built by members of Sinminhoe in Western Manchuria. Sinheung Military Academy is known that nurtured 3,500 independence soldiers during 10 years from 1911 thorough 1920. Nevertheless no people know how it recruited so many students for 10 tears. In the course of studying the recruit of Sinheung Military Academy, I became to focus on Manjugisa by Yi Sang-nyog. Although Yi Sang-nyon remembered that there were over five hundred students in Sinheung Military Academy from just after it's set up in Manjugisa, scholars overlooked that mention so far. In addition, in the Sixth poem of Manjugisa, Yi Sang-nyong recollected that there were 30 preliminary educational organizations in 1918 after installation of Sinheung Military Academy in 1911. Therefore I concluded that the over 500 students nurtured from just after installation of Sinheung Military Academy were summed up students of preliminary educational organizations over Sinheung Military Academy's and proved it. The students of preliminary educational organizations in Liuhexian Tonghuaxian entranced into Sinheung Military Academy after graduation. The graduates of Sinheung Military Academy taught the students of preliminary educational organizations a common and military educations in duty for two years. In conclusion, Sinheung Military Academy and nearby preliminary educational organizations were an wide military camp organically maintained by Korean in Western Manchuria for big purpose of independence war.

Effects of Integrated Nursing Practice Simulation-based Training on Stress, Interest in Learning, and Problem-Solving Ability of Nursing Students (통합적 간호실무 시뮬레이션 기반 훈련이 간호대학생의 스트레스, 학습흥미, 문제해결능력에 미치는 영향)

  • Park, Sun-Nam;Chu, Min-Sun;Hwang, Yoon-Young;Kim, Sun-Hee;Lee, Sun-Kyoung
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.22 no.4
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    • pp.424-432
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    • 2015
  • Purpose: In this study the time point of effects that repeat exposure to simulation-based nursing training has on stress, interest in learning, and problem-solving abilities were identified. Methods: Participants for this study were 75 nursing college students in Seoul. In a preliminary survey data were collected and measured for the general characteristics, stress, interest in learning, and problem-solving abilities of the students. Then, stress was assessed before performance of each of four-rounds of simulation training scenarios. After each simulation round, interest in learning and problem-solving abilities were assessed. Results: With respect to stress, no significant differences were found when comparing the results of the preliminary survey to those of each of the simulation-based training exercises. For the sub-items of interest in learning, interest in nursing knowledge and interest in clinical training significantly increased between the preliminary survey and the $4^{th}$ survey. Interest in lab training increased significantly at the $1^{st}$ survey. Problem solving abilities showed a significant increase from the preliminary at each of the survey points. Conclusion: Increasing the exposure of nursing students to simulation-based training enhances their interest in learning and problem-solving abilities. Therefore it is necessary to have education strategies that includes various simulation experiences for students.

Development and Preliminary Validation of Mibyeong Questionnaire(MQ) Based on Deficiency-Stagnation pattern (허울(虛鬱) 기반 미병 평가도구 개발 및 예비타당성 검증)

  • Baek, Younghwa;Lee, Youngseop;Park, Kihyun;Lee, Siwoo;Yoo, Jonghyang
    • Journal of Society of Preventive Korean Medicine
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    • v.19 no.3
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    • pp.11-19
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    • 2015
  • Objective : This study aimed to develop and preliminary validate the Mibyeong Questionnaire (MQ) based on Deficiency-Stagnation pattern, which was report of a person's health condition that comes directly from the person. Method : The first phage of developing a MQ was to generate and exhaustive list of all MQ issue that are relevant to the domain of interest, using literature research and expert group discussions. Through those steps, we established MQ with 33 items divided into two parts: 21-item deficiency pattern and 12-item stagnation pattern. The second phage, we examined the preliminary tests of reliability and validity including the 16-item Deficiency of MQ (16D-MQ), with data (n=1,890) already collected on the Korean medicine data center in KIOM. Results : Exploratory factor analysis revealed three factors of the 16D-MQ. These factors were fatigue(Qi, 氣); psychic and physical elements(Shen, 神); and skin and hair(Jing, 精). Cronbach's coefficient alpha was 0.876 and the intraclass correlation coefficients was 0.368-0.538. In support of criteria validity, the 16D-MQ was weakly correlated with EQ-5D and physicians's opinion, but it was acceptable. Conclusion : The MQ shows that it has an appropriate level of internal consistency and validity. We think further study to reveal its reliability and validity, including stagnation pattern as well as deficiency pattern, is needed.

Development of Clinical Performance Indicators for Establishing a Connecting System between Hospital Performance Management and Quality Improvement (의료기관의 성과관리와 질 향상 연계체계 구축을 위한 임상적 성과지표 개발)

  • Jang Keum Seong;Lee Sam Yong;Kim Yun Min;Hwang Sun Young;Kim Nam Young;Ryu Se Ang;Park Soon Joo;Choi Ja Yun
    • Journal of Korean Academy of Nursing
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    • v.35 no.7
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    • pp.1238-1247
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    • 2005
  • Purpose: This study aimed at developing integrated clinical performance indicators(CPIs) through the analysis of quality improvement(QI) activities of a hospital and literature review about performance measures. Method: The CPIs were developed through the following three stages; 1)Identifying preliminary CPIs 2)A staff validity test in preliminary CPIs 3)Developing final CPIs. Result: One hundred twenty-three preliminary CPIs were developed through QI activities of the target hospital for 8 years and literature review. The results of the validity test for the preliminary CPIs supported ninety-one items. Sixty-two CPIs were selected through integration, reclassification and renaming. Then, eighteen items were deleted on account of an imprecise calculation method. Finally, forty-four CPIs were confirmed. They consisted of twenty-six items at the hospital level and eighteen items at the department level. Conclusion: CPIs can be used as criteria to evaluate the performance of healthcare organizations, and to decide the quality of healthcare for customers. This study may contribute to establishing an integrated system between QI activities and performance measurement of healthcare organizations.

Effectiveness Analysis of Preliminary Evaluation of Public Library Establishment Feasibility Based on the Revised Library Act (도서관법 개정에 따른 공공도서관 설립 타당성 사전평가의 실효성 분석)

  • Kim, Hyo-Yoon
    • Journal of Korean Library and Information Science Society
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    • v.53 no.3
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    • pp.119-135
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    • 2022
  • The purpose of this study is to determine whether the pre-evaluation of the feasibility of establishing a public library, which is mandatory according to the revision of the Library Act, can improve the quality of the library. Therefore, the effectiveness of the preliminary evaluation was analyzed through the case analysis of the preliminary evaluation of the public library construction support project, which was implemented for the same purpose before the revision of the Library Act. In the case of libraries built after preliminary evaluation, most of the minimum standards for legal librarians required by the Enforcement Decree of the Library Act were secured, which helped secure basic library personnel. However, there were few libraries that secured and operated as much manpower as originally planned, and in some cases, the application applied to operate the library directly, but it was changed to consignment operation at the time of opening, so the pre-review details were not faithfully reflected. This study proposed re-establishing realistic librarian placement standards according to the revision of the law and introducing a post-evaluation using the library registration system so that it would not be a formal pre-process through case analysis.

A Preliminary Analysis for the Establishment of a Documentation Strategy of Modern and Contemporary Publishing Cultural Records in Daegu (대구 근현대 출판문화기록 도큐멘테이션 전략 수립을 위한 예비 분석)

  • Inyeong Jeong;Jongwook Lee
    • Journal of Korean Society of Archives and Records Management
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    • v.23 no.1
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    • pp.47-61
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    • 2023
  • This study attempted to present the direction of the documentation strategy to lay the foundation for preserving and using the modern and contemporary publishing culture in Daegu. To this end, the authors applied the phase of the "documentation area definition and preliminary analysis" suggested in Hackman's model. In the preliminary analysis phase, the authors investigated the cases of documentation on specific topics and conducted interviews with those concerned with documenting the publishing culture of Daegu. The findings of interviews were presented by the categories, such as "the value of Daegu's modern and contemporary publishing culture," "the object and method of collection," "documentation group," and "difficulties and limitations." With these findings, the authors proposed the main elements of a documentation strategy and revised it based on the feedback from two archivists. The proposed elements consist of the purpose, temporal, geographical, and morphological ranges, roles by group, reference sources, prior work, and the consideration for collection and operation. The preliminary analysis of this study will serve as a foundation for preserving and transmitting Daegu's publishing culture.

A PRELIMINARY STUDY FOR THE COUPLED ATMOSPHERS-STREAMFLOW MODELING IN KOREA

  • Bae, Deg-Hyo;Chung, Jun-Seok;Kwon, Won-Tae
    • Water Engineering Research
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    • v.1 no.1
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    • pp.25-37
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    • 2000
  • This study presents some results of a preliminary study for the coupled precipitation and river flow prediction system. The model system in based on three numerical models, Mesoscale Atmospheric Simulation model for generating atmospheric variables. Soil-Plant-Snow model for computing interactions within soil-canopy-snow system as well as the energy and water exchange between the atmosphere and underlying surfaces, and TOPMODEL for simulating stream flow, subsurface flow, and water tabled depth in an watershed. The selected study area is the 2,703 $\alpha_4$ $\km_2$ Soyang River basin with outlet at Soyang dam site. In addition to providing the results of rainfall and stream flow predictions, some results of DEM and GIS application are presented. It is obvious that the accurate river flow predictions are highly dependant on the accurate predictation predictions.

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A Survey of Japanese University Students' Future Use of English Goal Orientations

  • Uehara, Suwako;Richard, Jean-Pierre Joseph
    • English Language & Literature Teaching
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    • v.17 no.3
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    • pp.213-235
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    • 2011
  • The aim of this study is to present preliminary results from an ongoing large-scale study of English-language future goal orientations held by Japanese university students. The work here involves an investigation of learners in multiple disciplines, from five universities, both public and private, in the Kanto-region of Japan, and their perspective on their future use of English. The results summarize written essays on L2-goal orientations. Preliminary results indicate Japanese learners (n = 629) as a whole have disparate L2-learning goals; however, these can be summarized into four broad categories: career, personal life, study, and general; and early findings indicate that most learners (63.56%) are oriented to career or personal goal orientations, while others are oriented to study and general. These early results help us to gain a better understanding of the future goals of Japanese university learners and their views of English usage in the future.

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