• Title/Summary/Keyword: delphi research

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A Delphi Study on the Price Escalation Clause in a Construction Contract

  • Choi, Min Soo;Kim, Moo Han
    • Architectural research
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    • v.8 no.1
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    • pp.69-76
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    • 2006
  • The purpose of this study is to suggest policies to improve the price escalation system in a construction contract through a Policy Delphi technique. The Delphi, including two times questionnaires and a group discussion, was conducted by joining 14 experts. Also, the escalation provisions of various countries were examined. Results of the Delphi showed that the minimum fluctuation rate for price escalation was desirable at a level of 3%. To compute the fluctuation rate, calculating the price fluctuation of overall articles was more desirable than using price indices. A bidding date was more reasonable as the initial date of change in price. Losses caused by price change should be shared between contractor and owner; therefore a deduction rate should be introduced in price escalation. Meanwhile, overhead and profit should be adjusted in proportion to the fluctuation rate; but advance payment or the delayed construction amount should be deducted from the adjusted amount.

A Study on the State of Art and International Cooperation in the Field of Mechanical Engineering by Delphi Method (Delphi기법에 의한 기계공학기술의 수준평가 및 국제 기술협력기반에 관한 연구)

  • 권영주
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1996.04a
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    • pp.169-175
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    • 1996
  • We provide a fudamental set of information on technologies in the area of mechanical engineering to draw action plans for intermationalization of the National R&D activites. First, we design and use a modified Delphi method to evaluate levels of our technological capabilities and developed countries' as well. We investigate technology acquistion methodolgies, technology characteristcs and various aspects of international cooperation in terms of technology. Secondly, we analyze final responses of participants (i.e,. the third round results of Delphi method) tosee the correlation between various factors in developing mechanical engineering technologies through international cooperation. The technology classification used in this research is developed by STEPI (Science and Technology Policy Institute).

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A Study on the Construction of Non-face-to-face Lecture of KAOMPT: Delphi Survey Research to Post COVID-19 Untact Era (대한정형도수물리치료학회 비대면 강의 체계 구축 연구: 포스트 코로나19 대비 델파이 기법 분석 적용 사례)

  • Kim, Jin-young;Shin, Young-il;Yang, Sung-hwa
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.27 no.1
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    • pp.1-11
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    • 2021
  • Background: The purpose of this study is to identify the elements for the construction of the Korean academy of orthopedic manipulative physical therapy's (KAOMPT's) non-face-to-face lecture system using the Delphi method. Methods: The Delphi method was applied to 50 expert panel members of the Central Committee and the Provincial Branch of the KAOMPT. The Delphi survey was conducted in two rounds, and the first Delphi survey collected opinions on 40 questions on 12 topics. The second Delphi survey was collected into 25 questions on 4 topics. As a result of the survey, the content validity ratio (CVR), consensus and convergence were measured. Referring to the number of expert panels and previous studies were determine a CVR of at least 2.29, a consensus of at least .75 and a convergence of 0 to .5. Result: In the first Delphi result, out of the total 40 items, 20 items with high content validity ratio were found, and 10 items found double agreement. In the second Delphi result, 13 out of the total 25 items had a content validity ratio higher than 2.29, and 5 items found a double agreement. Conclusion: This study derived items on the role of central and municipal councils, lecture support and lecture room construction, non-face regular course and special lecture operation and personnel for the establishment of non-face-to-face lecture system. Based on this content, it is expected that it will help establish a non-face-to-face lecture system in 2021 through a pilot non-face-to-face lecture that will be implemented in the future.

A Study of the Activation Plan for the Hinterland of Gwangyang Port using Delphi/Fuzzy-AHP (Delphi/Fuzzy-AHP를 이용한 광양항 배후단지 활성화 방안에 관한 연구)

  • Kim, Seon-Gu;Choi, Yong-Seok
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2012.06a
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    • pp.240-241
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    • 2012
  • The purpose of this study is to propose a development strategy and an activation plan of port hinterland. To do this, we design a Delphi/Fuzzy-AHP model using Delphi and Fuzzy-AHP.

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Development of Nutritional Biochemistry Learning Goals and Core Competencies in the Dental Hygiene Curriculum

  • Yoon, Hye-Young;Shin, Sun-Jung;Shin, Bo-Mi;Lee, Hyo-Jin;Choi, Jin-Sun;Bae, Soo-Myoung
    • Journal of dental hygiene science
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    • v.22 no.2
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    • pp.115-125
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    • 2022
  • Background: In the dental hygiene curriculum, efforts are being made to introduce an integrated curriculum based on the competency of a dental hygienist. Because there is a connection and overlap in learning contents between Dental Nutrition and Oral Biochemistry, which are basic dental hygiene subjects, it is possible to integrate these two subjects. This study aims to derive Nutritional Biochemistry as an integrated curriculum for Dental Nutrition and Oral Biochemistry, and to develop learning goals and competencies for Dental Nutritional Biochemistry. Methods: The learning contents of the integrated curriculum were composed by referring to the contents of the Dental Nutrition and Oral Biochemistry textbooks, and learning goals were derived from the learning contents. Moreover, competency was developed by analyzing the duties of a dental hygienist that can be performed through the learning goals. The Delphi survey was conducted twice to verify the content validity ratio (CVR) of the competence and the learning goal of the integrated curriculum. Results: In the first Delphi survey, the CVR for two competencies was 0.56 or higher. Moreover, it was revised based on expert's opinions, and as a result of the second Delphi survey after the revision, the CVR was either increased or maintained. Eighty-five learning goals were derived by referring to the textbook. According to CVR and expert opinions, after the first Delphi survey, the number of learning goals was reduced to 69. After the second Delphi survey, 68 learning goals were finally derived. Conclusion: The development process of the integrated curriculum conducted in this study can be utilized for integration between subjects in basic dental hygiene.

Delphi Study for Developing Consensus of Physical Attribute in Pressure Pulse Waveform (맥상파 물리량 속성 총의형성을 위한 델파이 연구)

  • Lee, Haebeom;Kim, Hyunho;Park, Young-Jae;Park, Young-Bae
    • The Journal of the Society of Korean Medicine Diagnostics
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    • v.18 no.3
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    • pp.137-148
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    • 2014
  • Objectives This study was conducted to derive consensus about physical attributes in pressure pulse waveform and pulse conditions by Delphi study. Methods Delphi research was conducted for 2 rounds via e-mail. 8 Professors who lecture on a diagnostics of K. M. from the society of Korean medicine diagnostics were participated in this survey. They were asked for answering about series of definition for a physical attribute in pressure pulse waveform and combination for physical attributes of pulse conditions. Results 4 survey items were decided to have high validity and 9 survey items were decided to come to consensus about a physical attribute in pressure pulse waveform. 6 pulse condition were decided to come to consensus. Conclusion Using Delphi method, physical attributes in pressure pulse waveform and combinations of physical attribute in pulse condition come to consensus.

A Delphi Survey for the Revision of the Diagnostic Criteria for Sanhupung (Puerperal Wind Disorder, U32.7) (산후풍 진단 기준 개정 위한 델파이조사 결과)

  • Choi, Su-Ji;Kim, Dong-Il
    • The Journal of Korean Obstetrics and Gynecology
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    • v.35 no.2
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    • pp.42-53
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    • 2022
  • Objectives: The definition of Sanhupung (Puerperal wind disorder) has been varied and there has been a prior study to establish the definition, but no clear conclusion has been reached on diagnostic criteria. Therefore, the aim of this study was to clearly redefine the definition of Sanhupung using the Delphi method. Methods: This study used the Delphi technique. A panel consisting of 13 experts of Korean medicine, particularly in Obstetrics & Gynecology, participated in the Delphi survey that included answering the 3rd round survey. The Delphi survey was conducted by evaluating and correcting the questionnaire using e-mail. Results: Through the Delphi survey, we have reached an agreement regarding the diagnostic criteria of Sanhupung. They are as follows: 1) Sanhupung can be diagnosed based on basic symptoms. If one or more symptoms are expressed in the basic symptom group, it can be diagnosed as Sanhupung. It is diagnosed in detail as a pain type or a sensory impairment type according to the category of basic symptoms. 2) Incidental symptoms are not essential for diagnosis, and are referred to for checking general weakness and autonomic nervous system conditions. 3) In order to meet the diagnostic criteria, the symptoms should occur within 6 months after childbirth or miscarriage, and the cause of the symptoms should not be classified as other diseases. Conclusions: The diagnostic criteria of Sanhupung were suggested based on the Delphi survey among experts in the field. Further research is necessary to improve the reliability and validity of the criteria.

A Study for the Establishment of the Diagnostic Definition of Sanhupung (U32.7) using the Delphi Method (산후풍의 진단적 정의 확립을 위한 전문가 델파이 조사 연구)

  • Oh, Su-Kyoung;Noh, Eun-Ji;Choi, Su-Ji;Kim, Dong-Il
    • The Journal of Korean Obstetrics and Gynecology
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    • v.34 no.2
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    • pp.16-30
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    • 2021
  • Objectives: The aim of this study was to establish a clear diagnostic definition of Sanhupung using the Delphi method. Methods: This study used the Delphi technique. A panel consisting of 21 experts of Korean medicine, particularly in of gynecologic medicine, participated in the Delphi examination that included answering the 4th round survey. The Delphi examination was carried out through evaluating and correcting the questionnaire by e-mail. Results: Through the Delphi survey, we have reached on an agreement regarding the basic concepts, time, cause, essential symptoms, and accessory symptoms of Sanhupung. They are as follows: 1) Sanhupung is a culture bound syndrome reflecting Korea's cultural specificity. 2) Sanhupung can be diagnosed even after the miscarriage. 3) For the diagnosis of Sanhupung, the main cause of symptoms should not be classified as other disease. 4) Sanhupung can be diagnosed based on essential symptoms and accessory symptoms. 5) Essential symptoms include local symptoms such as joint pain at specific areas, partial sensory impairment and general symptoms including pain of all the joints, whole body sensory impairment, increased sweating, feeling of wind coming into the body, worsened symptoms with the cold, intolerance to cold, and pain of all the muscles. Conclusions: The basic concepts and diagnostic definition of Sanhupung were suggested based on the Delphi survey among experts in the field. Further research is necessary to improve reliability and validity of diagnostic definition of Sanhupung in clinical trials.

The Development of Composition Model for Engineering Education Program of Elementary and Secondary School (초·중등 공학교육 프로그램 구성 모형 개발)

  • Kim, Young-min;Kim, Ki-soo
    • Journal of Engineering Education Research
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    • v.20 no.4
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    • pp.21-27
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    • 2017
  • The purpose of this study is to provide basic data and guideline to STEM(Science, Technology, Engineering, Mathematics) educators who prepare engineering education in elementary and secondary school. For this, this study develops a composition model for engineering education program of elementary and secondary school. To do this, a literature research, experts interview and Delphi survey were conducted. Through the literature research, we extracted the components of model for engineering education program of elementary and secondary school and then made a first draft of the model. The draft was revised by experts while Delphi survey was used to validate the model based on Delphi panels' opinions. The panels for the Delphi survey consisted of 51 experts in the STEM education field. The survey was conducted three different times and importance survey was included in the third stage. The conclusions of this study were as follows: First, the model consist of definition, 4 directions, 4 characteristics, 3 educational goals according to school level, educational contents area and element, teaching and learning method and evaluation method. The educational contents area and element consist of 2 major areas, 7 areas and 18 elements. Second, all components of the developed model were valid in most of the statistics such as mean, standard deviation, the degree of consensus and convergence, and CVR(Content Validity Ratio). Third, importance for education contents area and element according to the school level are analyzed.