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Sample records for delphi technique based

  1. Evaluation of a Delphi technique based expert judgement method for LCA valuation - DELPHI II

    Energy Technology Data Exchange (ETDEWEB)

    Virtanen, Y.; Torkkeli, S. [VTT Chemical Technology, Espoo (Finland). Environmental Technology; Wilson, B. [Landbank Environmental Research and Consulting, London (United Kingdom)

    1999-07-01

    Because of the complexity and trade-offs between different points of the life cycles of the analysed systems, a method which measures the environmental damage caused by each intervention is needed in order to make a choice between the products. However, there is no commonly agreed methodology for this particular purpose. In most of the methods the valuation is implicitly or explicitly based on economic criteria. For various reasons, however, economically obtained criteria do not necessarily reflect ecological arguments correctly. Thus, there is a need for new, ecologically based valuation methods. One such approach is the expert judgement method, based on the Delphi technique, which rejects the economic basis in favour of the judgements of a group of environmental experts. However, it is not self evident that the expert judgement based environmental rating of interventions will be essentially more correct and certain than other methods. In this study the method was evaluated at different points of the procedure in order to obtain a picture of the quality of the indexes produced. The evaluation was based on an actual Delphi study made in 1995-1996 in Finland, Sweden and Norway. The main questions addressed were the significance of the results and the operational quality of the Delphi procedure. The results obtained by applying the expert method indexes were also compared with the results obtained with other valuation methods for the background life cycle inventory of the case study. Additional material included feedback data from panellists of the case study, collected with a questionnaire. The questionnaire data was analysed to identify major dimensions in the criteria for evaluating interventions and correlation of the final indexes of the Delphi I study with these dimensions. The rest of the questionnaire material was used to document panellists' opinions and experiences of the Delphi process, familiarity with the environmental impacts of various

  2. The Delphi Technique in Educational Research

    OpenAIRE

    Green, Ravonne A.

    2014-01-01

    The Delphi Technique has been useful in educational settings in forming guidelines, standards, and in predicting trends. Judd lists these major uses of the Delphi Technique in higher education: (a) cost-effectiveness, (b) cost–benefit analysis, (c) curriculum and campus planning, and (d) university-wide educational goals and objectives. The thorough Delphi researcher seeks to reconcile the Delphi consensus with current...

  3. IMPLEMENTATION OF THE DELPHI TECHNIQUE IN FINANCE

    Directory of Open Access Journals (Sweden)

    Marcin Kozak

    2015-05-01

    Full Text Available In the rapidly developing world, forecasting is very important for numerous aspects of our lives,the finance realm not being an exception. Various qualitative and quantitative methods are used to predict what is ahead. One of them is the Delphi method, an anonymous, structured discussion among experts on the forecasted topic. Developed over 60 years ago, it is one of the most effective qualitative forecasting and decision-making techniques. That said, literature review suggests Delphi’s advantages have not been sufficiently utilized in financial research. This paper is an introduction to Delphi with a focus on the method’s application possibilities in finance and related disciplines. For this purpose, we performed a literature review and presented a step-by-step guide for implementing the Delphi technique, describing a structure of the Delphi process, major principles of Delphi, experts’ selection, Delphi types, ways of establishing consensus, validity of the method among others. Finally, we focused on implementing Delphi in finance and offered example topics that could be studied with Delphi.

  4. Improving TMD classification using the Delphi technique.

    Science.gov (United States)

    John, M T

    2010-10-01

    The classification of temporomandibular disorders (TMD) is still controversial. Consensus methods such as the Delphi technique, a method that polls experts' anonymous opinion in an iterative process with controlled feedback and statistical aggregation of group response, could be valuable to improve this challenging topic. The article illustrates the application of the Delphi technique for deciding whether the terms myalgia or myofascial pain should be used in a TMD classification system and discusses the technique's potential for TMD classification in general. In three Delphi rounds, 14 TMD experts from the Division of TMD and Orofacial Pain of the University of Minnesota reached a consensus about which TMD diagnoses should be included in a TMD classification system. They preferred the term myofascial pain over myalgia. The Delphi technique has the potential to provide answers to complex questions in TMD classification, e.g., TMD nomenclature and range as well as scope of conditions included in a future TMD classification system.

  5. IMPLEMENTATION OF THE DELPHI TECHNIQUE IN FINANCE

    OpenAIRE

    Marcin Kozak; Olesia Iefremova

    2014-01-01

    In the rapidly developing world, forecasting is very important for numerous aspects of our lives, the finance realm not being an exception. Various qualitative and quantitative methods are used to predict what is ahead. One of them is the Delphi method, an anonymous, structured discussion among experts on the forecasted topic. Developed over 60 years ago, it is one of the most effective qualitative forecasting and decision-making techniques. That said, literature review suggests Delphi's adva...

  6. The Delphi Technique: Making Sense of Consensus

    Directory of Open Access Journals (Sweden)

    Chia-Chien Hsu

    2007-08-01

    Full Text Available The Delphi technique is a widely used and accepted method for gathering data from respondents within their domain of expertise. The technique is designed as a group communication process which aims to achieve a convergence of opinion on a specific real-world issue. The Delphi process has been used in various fields of study such as program planning, needs assessment, policy determination, and resource utilization to develop a full range of alternatives, explore or expose underlying assumptions, as well as correlate judgments on a topic spanning a wide range of disciplines. The Delphi technique is well suited as a method for consensus-building by using a series of questionnaires delivered using multiple iterations to collect data from a panel of selected subjects. Subject selection, time frames for conducting and completing a study, the possibility of low response rates, and unintentionally guiding feedback from the respondent group are areas which should be considered when designing and implementing a Delphi study.

  7. Education Research: An exploration of case-based learning in neuroscience grand rounds using the Delphi technique.

    Science.gov (United States)

    Rigby, Heather; Schofield, Susie; Mann, Karen; Benstead, Timothy

    2012-07-17

    Neuroscience grand rounds (NSGR) is a key educational exercise in most academic medical centers. Despite its importance, there are few published studies evaluating the manner in which it is conducted. Our objective was to obtain consensus opinion from staff neurologists, neurosurgeons, neuroradiologists, and neuropathologists on the features that best characterize a highly educational NSGR. Using the Delphi technique, multiple rounds of questionnaires were presented to a panel of neurologists, neurosurgeons, neuropathologists, and neuroradiologists. The anonymous responses were analyzed and fed back to participants. Each round, the participants were given the opportunity to react to collective opinion by changing their response or by presenting arguments in favor or against the item in question. We found that support for NSGR in its present form is high and that particularly strong support exists for 1) case-based rounds, 2) high level of audience interaction, 3) resident participation in case presentation and analysis, 4) formal training for residents in leading case-based presentations, and 5) resident feedback and evaluation. Our results offer centers that use a case-based format for NSGR with guidance to maximize the important learning opportunity that it provides. We provide an organized evaluation of expert opinion on how this important educational exercise should be conducted. The results expose some fresh insights into traditional values in medical education.

  8. Development Technique of Software System Based on Delphi 7 Studio%基于Delphi 7 Studio的软件系统开发技术

    Institute of Scientific and Technical Information of China (English)

    王维; 张克农

    2002-01-01

    介绍了快速应用开发工具Delphi的发展概况,叙述了使用针对,NET平台的Delphi 7 Studio进行软件系统开发的几种新技术,使用这些技术可以实现优秀的企业级解决方案,并可以实现跨平台开发.

  9. Using the Delphi Technique to Support Curriculum Development

    Science.gov (United States)

    Sitlington, Helen Barbara; Coetzer, Alan John

    2015-01-01

    Purpose: The purpose of this paper is to present an analysis of the use of the Delphi technique to support curriculum development with a view to enhancing existing literature on use of the technique for renewal of business course curricula. Design/methodology/approach: The authors outline the Delphi process for obtaining consensus amongst a…

  10. Using the Delphi Technique to Support Curriculum Development

    Science.gov (United States)

    Sitlington, Helen Barbara; Coetzer, Alan John

    2015-01-01

    Purpose: The purpose of this paper is to present an analysis of the use of the Delphi technique to support curriculum development with a view to enhancing existing literature on use of the technique for renewal of business course curricula. Design/methodology/approach: The authors outline the Delphi process for obtaining consensus amongst a…

  11. DELPHI TECHNIQUE: ENHANCING RESEARCH IN TECHNICAL AND VOCATIONAL EDUCATION

    Directory of Open Access Journals (Sweden)

    Irdayanti Mat Nashir

    2015-12-01

    Full Text Available Empirical studies conducted within the Technical and Vocational Education (TVE discipline in Malaysia tends to give greater emphasis to quantitative data collection techniques. Aware of the potential usefulness of combination of techniques, this paper discusses the application of the Delphi technique where qualitative and quantitative data collection techniques are used to reach useful results. The Delphi technique provides the opportunity for researchers to gather input from participants without requiring them to work face-to-face. Often, the process is used to find consensus among experts who have differing views and perspectives. The Delphi technique enables group problem-solving using an iterative process of problem definition, discussion, feedback, and revisions.This paper discusses the basics of the Delphi techniques, its application potential, the selection of expert panels and the means on how consensus can be reached among the participants using examples from our past research using the technique.

  12. Internet-Based Delphi Research: Case Based Discussion

    Science.gov (United States)

    Cole, Zachary Douglas; Donohoe, Holly M.; Stellefson, Michael L.

    2013-03-01

    The interactive capacity of the Internet offers benefits that are intimately linked with contemporary research innovation in the natural resource and environmental studies domains. However, e-research methodologies, such as the e-Delphi technique, have yet to undergo critical review. This study advances methodological discourse on the e-Delphi technique by critically assessing an e-Delphi case study. The analysis suggests that the benefits of using e-Delphi are noteworthy but the authors acknowledge that researchers are likely to face challenges that could potentially compromise research validity and reliability. To ensure that these issues are sufficiently considered when planning and designing an e-Delphi, important facets of the technique are discussed and recommendations are offered to help the environmental researcher avoid potential pitfalls associated with coordinating e-Delphi research.

  13. Defining the Bobath concept using the Delphi technique.

    Science.gov (United States)

    Raine, Sue

    2006-03-01

    The Bobath concept, based on the work of Berta and Karel Bobath, offers therapists working in the field of neurological rehabilitation a framework for their clinical interventions. It is the most commonly used approach in the UK. Although they recognize that over the last half-century the concept has undergone considerable developments, proponents of the Bobath concept have been criticized for not publishing these changes. The aim of the present study was to use the Delphi technique to enable experts in the field to define the current Bobath concept. A four-round Delphi study design was used. The sample included all members of the British Bobath Tutor's Association, who are considered experts in the field. Initial statements were identified from the literature, with respondents generating additional statements during the study. The level of agreement was determined using a five-point Likert scale. The respondents were then provided with feedback on group opinions and given an opportunity to re-rate each statement. The level of group consensus was set at 80%. Fifteen experts took part. The response rate was 85% in the first round, and 93% in each subsequent round. Ten statements from the literature were rated with a further 12 generated by the experts. Thirteen statements achieved consensus for agreement and seven for disagreement. The Delphi study was an effective research tool, maintaining anonymity of responses and exploring expert opinions on the Bobath concept. The experts stated that Bobath's work has been misunderstood if it is considered as the inhibition of spasticity and the facilitation of normal movement, as described in some literature. They agreed that the Bobath concept was developed by the Bobaths as a living concept, understanding that as therapists' knowledge base grows their view of treatment broadens.

  14. Identifying indicators through modified Delphi technique in polytechnics system

    Science.gov (United States)

    Nashir, Irdayanti Mat; Mustapha, Ramlee; Yusoff, Abdullah

    2015-02-01

    This study aims to examine how the panel has been selected as experts in assessing indicators of innovative instructional leadership (IIL) administrator in polytechnics based on 222 items were obtained through previous studies. A total of eleven people were selected as the expert panels in a study where expert selection criteria based on their background in the leadership. Experts were interviewed separately. Interviews were carried out for a half hour in their offices. The data obtained were analyzed using Atlas Ti. Overall findings indicate experts agree that a total of 188 items and 14 indicators should be maintained in this innovative instructional leadership instruments and next by using Modified Delphi Technique. The instrument will then be analyzed to obtain findings on the perception of lecturers on every administrator innovative instructional leadership in their respective polytechnics.

  15. The Delphi Technique in nursing research - Part 3: Data Analysis and Reporting

    Directory of Open Access Journals (Sweden)

    Dimitrios Kosmidis

    2013-07-01

    Full Text Available The Delphi technique is a research method with a multitude of literature regarding its application, yet there is limited guidance on methods of analysis and the presentation of results. Aim: To describe and critically analyze the main methods of the qualitative and quantitative data analysis in studies using the Delphi Technique. Materials and methods: The literature search included research and review articles of nursing interest within the following databases: IATROTEK, Medline, Cinahl and Scopus, from 2001 to 2011. Key-words were used Delphi technique, nursing and research methodology, in English and Greek language. Results: The literature search revealed 285 articles of nursing interest (266 reserch articles and 19 reviews. Data analysis in formal methodology surveys using the Delphi technique initially involves a qualitative analysis of the experts' views which are gathered during the first round. Subsequently, various statistical analyses methods are employed in order to estimate the final level of consensus on the coming rounds (iterations. Prescribing the desired degree of consensus is usually based on subjective assumptions, while the final identification is done with mainly via descriptive and inductive statistical measures. In the presentation of results, simple tables are mainly used which are based on descriptive data, statistical criteria or scatter charts in order to illustrate the experts' opinions. Conclusions: The Delphi Technique has infiltrated nursing research with great variability in data analysis methodology and presentation of results depending on each study's aims and characteristics.

  16. Defining Multimorbidity: From English to Portuguese Using a Delphi Technique.

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    Prazeres, Filipe; Santiago, Luiz Miguel; Simões, José Augusto

    2015-01-01

    To translate the European General Practice Research Network multimorbidity definition according to Portuguese cultural and linguistic features. Similar to the process completed in several other European countries, a forward and backward translation of the English multimorbidity definition using the Delphi technique was performed in Portugal. Twenty-three general practitioners (GPs)-14 males and 9 females-agreed to form the Portuguese expert panel for the Delphi process (59% acceptance rate). The Portuguese definition of multimorbidity was achieved after two Delphi rounds with a mean (SD) consensus score for final round of 8.43/9 (0.73). With this paper the definition of multimorbidity is now available in a new language-Portuguese. Its availability in the local language will raise Portuguese GPs' awareness about multimorbidity and allow future national and international research. The operationalization of the definition will allow an easier identification of patients with multimorbidity.

  17. How to use the nominal group and Delphi techniques.

    Science.gov (United States)

    McMillan, Sara S; King, Michelle; Tully, Mary P

    2016-06-01

    Introduction The Nominal Group Technique (NGT) and Delphi Technique are consensus methods used in research that is directed at problem-solving, idea-generation, or determining priorities. While consensus methods are commonly used in health services literature, few studies in pharmacy practice use these methods. This paper provides an overview of the NGT and Delphi technique, including the steps involved and the types of research questions best suited to each method, with examples from the pharmacy literature. Methodology The NGT entails face-to-face discussion in small groups, and provides a prompt result for researchers. The classic NGT involves four key stages: silent generation, round robin, clarification and voting (ranking). Variations have occurred in relation to generating ideas, and how 'consensus' is obtained from participants. The Delphi technique uses a multistage self-completed questionnaire with individual feedback, to determine consensus from a larger group of 'experts.' Questionnaires have been mailed, or more recently, e-mailed to participants. When to use The NGT has been used to explore consumer and stakeholder views, while the Delphi technique is commonly used to develop guidelines with health professionals. Method choice is influenced by various factors, including the research question, the perception of consensus required, and associated practicalities such as time and geography. Limitations The NGT requires participants to personally attend a meeting. This may prove difficult to organise and geography may limit attendance. The Delphi technique can take weeks or months to conclude, especially if multiple rounds are required, and may be complex for lay people to complete.

  18. Using Delphi technique in a consensual curriculum for periodontics.

    Science.gov (United States)

    Fried, Hana; Leao, Anna Thereza

    2007-11-01

    Periodontics has experienced several important conceptual changes in the last few decades. As such, it is important to have a periodontics curriculum built upon the expertise of specialists in that discipline and reflecting those changes. The main goal of this study was to attain a consensus, through the use of the Delphi technique, on the topics that should be included in a periodontics curriculum for undergraduate dental students. A sample of periodontics lecturers from nine dental schools in two Brazilian cities was used, and a Delphi technique approach was followed to investigate sample member perceptions on the subject. Participants received four postal mail questionnaires asking them to rate and rerate eighty-nine topics for possible inclusion in the curriculum. A descriptive analysis was conducted, and topic frequencies were calculated. Topics rated as highly important for inclusion were the following: health, ailment, prevention, etiology, epidemiology, diagnosis, and treatment. The Delphi technique approach proved successful in involving periodontics lecturers in the design of a periodontics curriculum for undergraduate dental students.

  19. Medication dispensing errors in Palestinian community pharmacy practice: a formal consensus using the Delphi technique.

    Science.gov (United States)

    Shawahna, Ramzi; Haddad, Aseel; Khawaja, Baraa; Raie, Rand; Zaneen, Sireen; Edais, Tasneem

    2016-10-01

    Background Medication dispensing errors (MDEs) are frequent in community pharmacy practice. A definition of MDEs and scenarios representing MDE situations in Palestinian community pharmacy practice were not previously approached using formal consensus techniques. Objective This study was conducted to achieve consensus on a definition of MDEs and a wide range of scenarios that should or should not be considered as MDEs in Palestinian community pharmacy practice by a panel of community pharmacists. Setting Community pharmacy practice in Palestine. Method This was a descriptive study using the Delphi technique. A panel of fifty community pharmacists was recruited from different geographical locations of the West Bank of Palestine. A three round Delphi technique was followed to achieve consensus on a proposed definition of MDEs and 83 different scenarios representing potential MDEs using a nine-point scale. Main outcome measure Agreement or disagreement of a panel of community pharmacists on a proposed definition of MDEs and a series of scenarios representing potential MDEs. Results In the first Delphi round, views of key contact community pharmacists on MDEs were explored and situations representing potential MDEs were collected. In the second Delphi round, consensus was achieved to accept the proposed definition and to include 49 (59 %) of the 83 proposed scenarios as MDEs. In the third Delphi round, consensus was achieved to include further 13 (15.7 %) scenarios as MDEs, exclude 9 (10.8 %) scenarios and the rest of 12 (14.5 %) scenarios were considered equivocal based on the opinions of the panelists. Conclusion Consensus on a definition of MDEs and scenarios representing MDE situations in Palestinian community pharmacy practice was achieved using a formal consensus technique. The use of consensual definitions and scenarios representing MDE situations in community pharmacy practice might minimize methodological variations and their significant effects on the

  20. Three decision-making aids: brainstorming, nominal group, and Delphi technique.

    Science.gov (United States)

    McMurray, A R

    1994-01-01

    The methods of brainstorming, Nominal Group Technique, and the Delphi technique can be important resources for nursing staff development educators who wish to expand their decision-making skills. Staff development educators may find opportunities to use these methods for such tasks as developing courses, setting departmental goals, and forecasting trends for planning purposes. Brainstorming, Nominal Group Technique, and the Delphi technique provide a structured format that helps increase the quantity and quality of participant responses.

  1. Determining the most important factors for sustainable energy technology selection in Africa: application of the Delphi technique

    CSIR Research Space (South Africa)

    Barry, M-L

    2008-04-01

    Full Text Available into account when identifying the most sustainable technological systems in the African context. The study utilised the Delphi technique. The questionnaire of the first round was based on factors identified during a focus group exercise with energy experts...

  2. Use of the Delphi Technique for developing national clinical guidelines for prescription of lower-limb prostheses

    NARCIS (Netherlands)

    van der Linde, H; Hofstad, CJ; Postema, K; Geertzen, JHB

    2005-01-01

    The aim of this project was the development of evidence- and consensus-based clinical practice guidelines for lower-limb prosthesis prescription for achieving transparency and consensus among clinicians, manufacturers, and insurance companies. This article describes a modified Delphi Technique, whic

  3. Identifying Core Mobile Learning Faculty Competencies Based Integrated Approach: A Delphi Study

    Science.gov (United States)

    Elbarbary, Rafik Said

    2015-01-01

    This study is based on the integrated approach as a concept framework to identify, categorize, and rank a key component of mobile learning core competencies for Egyptian faculty members in higher education. The field investigation framework used four rounds Delphi technique to determine the importance rate of each component of core competencies…

  4. Developing the E-Delphi System: A Web-Based Forecasting Tool for Educational Research.

    Science.gov (United States)

    Chou, Chien

    2002-01-01

    Discusses use of the Delphi technique and describes the development of an electronic version, called e-Delphi, in which questionnaire construction and communication with panel members was accomplished using the Web. Explains system function and interface and discusses evaluation of the e-Delphi system. (Author/LRW)

  5. Development of criteria for evaluating clinical response in thyroid eye disease using a modified Delphi technique

    DEFF Research Database (Denmark)

    Douglas, Raymond S; Tsirbas, Angelo; Gordon, Mark;

    2009-01-01

    OBJECTIVE: To identify components of a provisional clinical response index for thyroid eye disease using a modified Delphi technique. METHODS: The International Thyroid Eye Disease Society conducted a structured, 3-round Delphi exercise establishing consensus for a core set of measures for clinical...... exercise, we developed provisional core measures for assessing disease activity and severity in clinical trials of therapies for thyroid eye disease. These measures will be iteratively refined for use in multicenter clinical trials.......% of participants) rated 153 criteria in Delphi 3 (67 criteria were excluded because of redundancy). Criteria with a mean greater than 6 (1 = least appropriate to 9 = most appropriate) were further evaluated by the nominal group technique and provisional core measures were chosen. CONCLUSIONS: Using a Delphi...

  6. Guidelines for using the Delphi Technique to develop habitat suitability index curves

    Science.gov (United States)

    Crance, Johnie H.

    1987-01-01

    Habitat Suitability Index (SI) curves are one method of presenting species habitat suitability criteria. The curves are often used with the Habitat Evaluation Procedures (HEP) and are necessary components of the Instream Flow Incremental Methodology (IFIM) (Armour et al. 1984). Bovee (1986) described three categories of SI curves or habitat suitability criteria based on the procedures and data used to develop the criteria. Category I curves are based on professional judgment, with 1ittle or no empirical data. Both Category II (utilization criteria) and Category III (preference criteria) curves have as their source data collected at locations where target species are observed or collected. Having Category II and Category III curves for all species of concern would be ideal. In reality, no SI curves are available for many species, and SI curves that require intensive field sampling often cannot be developed under prevailing constraints on time and costs. One alternative under these circumstances is the development and interim use of SI curves based on expert opinion. The Delphi technique (Pill 1971; Delbecq et al. 1975; Linstone and Turoff 1975) is one method used for combining the knowledge and opinions of a group of experts. The purpose of this report is to describe how the Delphi technique may be used to develop expert-opinion-based SI curves.

  7. Gadamerian philosophical hermeneutics as a useful methodological framework for the Delphi technique.

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    Guzys, Diana; Dickson-Swift, Virginia; Kenny, Amanda; Threlkeld, Guinever

    2015-01-01

    In this article we aim to demonstrate how Gadamerian philosophical hermeneutics may provide a sound methodological framework for researchers using the Delphi Technique (Delphi) in studies exploring health and well-being. Reporting of the use of Delphi in health and well-being research is increasing, but less attention has been given to covering its methodological underpinnings. In Delphi, a structured anonymous conversation between participants is facilitated, via an iterative survey process. Participants are specifically selected for their knowledge and experience with the topic of interest. The purpose of structuring conversation in this manner is to cultivate collective opinion and highlight areas of disagreement, using a process that minimizes the influence of group dynamics. The underlying premise is that the opinion of a collective is more useful than that of an individual. In designing our study into health literacy, Delphi aligned well with our research focus and would enable us to capture collective views. However, we were interested in the methodology that would inform our study. As researchers, we believe that methodology provides the framework and principles for a study and is integral to research integrity. In assessing the suitability of Delphi for our research purpose, we found little information about underpinning methodology. The absence of a universally recognized or consistent methodology associated with Delphi was highlighted through a scoping review we undertook to assist us in our methodological thinking. This led us to consider alternative methodologies, which might be congruent with the key principles of Delphi. We identified Gadamerian philosophical hermeneutics as a methodology that could provide a supportive framework and principles. We suggest that this methodology may be useful in health and well-being studies utilizing the Delphi method.

  8. Data base and slow controls system of the DELPHI VSAT and two-photon physics using DELPHI at LEP

    Energy Technology Data Exchange (ETDEWEB)

    Kronkvist, I.

    1996-09-01

    This thesis is based on work done at the DELPHI-detector at LEP 1991-1996. The first part describes the Very Small Angle Tagger (VSAT) and Small angle TIle Calorimeter (STIC), which are sub-detectors of DELPHI. The second part describes the structure of the DELPHI database, and how this was implemented for the VSAT detector. An automatic on-line calibration database updating procedure that was set up in 1991 in order to prepare for off-line analysis and luminosity calculations. The third part gives an introduction to the DELPHI slow controls system. This is a very complex system as a whole, and the implementation for VSAT showed a need for detector-specific software adapted to the custom-built hardware. As an example of how the system can be used in tracing problems and their origins, there is a section on the radiation damage sustained to two of the VSAT modules in September 1995. There is also a description on how the Small Angle Tagger (SAT) slow controls system was adapted to the STIC detector in early 1994 when the STIC was installed, replacing the SAT as the main DELPHI luminosity monitor. The forth and final part is about two-photon physics at DELPHI, with emphasis on a VSAT double-tagged event analysis. It shows the feasibility of looking for double-tagged events where the scattered particles are tagged in very small angles. The cross sections for such events are very small, but the data is consistent with Monte Carlo predictions using a combination of VDM, QPM, QCD + RPC models, and demonstrates the feasibility of making such investigations with future DELPHI data-recordings. 46 refs, 21 figs.

  9. Experience of Delphi technique in the process of establishing consensus on core competencies.

    Science.gov (United States)

    Raghav, Pankaja Ravi; Kumar, Dewesh; Bhardwaj, Pankaj

    2016-01-01

    The Department of Community Medicine and Family Medicine (CMFM) has been started as a new model for imparting the components of family medicine and delivering health-care services at primary and secondary levels in all six newly established All India Institute of Medical Sciences (AIIMS), but there is no competency-based curriculum for it. The paper aims to share the experience of Delphi method in the process of developing consensus on core competencies of the new model of CMFM in AIIMS for undergraduate medical students in India. The study adopted different approaches and methods, but Delphi was the most critical method used in this research. In Delphi, the experts were contacted by e-mail and their feedback on the same was analyzed. Two rounds of Delphi were conducted in which 150 participants were contacted in Delphi-I but only 46 responded. In Delphi-II, 26 participants responded whose responses were finally considered for analysis. Three of the core competencies namely clinician, primary-care physician, and professionalism were agreed by all the participants, and the least agreement was observed in the competencies of epidemiologist and medical teacher. The experts having more experience were less consistent as responses were changed from agree to disagree in more than 15% of participants and 6% changed from disagree to agree. Within the given constraints, the final list of competencies and skills for the discipline of CMFM compiled after the Delphi process will provide a useful insight into the development of competency-based curriculum of the subject.

  10. [Acupressure for Managing Agitation in People with Dementia: Design of a Protocol Using the Delphi Technique].

    Science.gov (United States)

    Kwan, Rick Yiu Cho; Leung, Mason Chin Pang; Lai, Claudia Kam Yuk

    2017-01-01

    Preliminary studies support the effect of acupressure in managing agitation in people with dementia (PWD). However, procedures for the selection of intervention ingredients and specifications of the implementation techniques are lacking. This lack of information hinders further studies on the effect of acupressure and its subsequent clinical uses. The aim of this study was to develop an acupressure protocol and to identify its specifications. This study employed the Delphi technique, an approach to gain consensus on intervention ingredient selection to formulate the acupressure protocol through rounds of consultation among a panel of experts. Consensus of the protocol is considered when agreements on each ingredient reach and exceed 80%. We invited 6 eligible traditional Chinese medicine (TCM) practitioners into the expert panel. An acupressure protocol with 100% agreement was developed in 3 rounds of consultation. Five acupoints and seven implementation specifications were identified. This study identifies the key intervention ingredients of acupressure and displays their procedures. The results support the notion that identification of acupressure ingredients for managing agitation in PWD by the Delphi technique is feasible. This study also identifies some intervention implementation specifications that have not been reported earlier, although the dosage (i.e. the frequency and duration) could not be well justified by the experts based on their clinical experience and the TCM theory. The study results suggest that further studies should focus on identifying the ideal dosage to be used and subsequently examine the effect of this standardized acupressure protocol as implemented by lay caregivers in randomized controlled trials. © 2017 S. Karger GmbH, Freiburg.

  11. The Delphi Technique: A Research Strategy for Career and Technical Education

    Science.gov (United States)

    Stitt-Gohdes, Wanda L.; Crews, Tena B.

    2004-01-01

    Career and technical education research often centers around quantitative research designs. The Delphi Technique provides a structured communication process designed to produce a detailed examination of a topic and/or problem and discussion from the participating group. The contributions of individuals via this tool produce a group perspective not…

  12. What should primary care providers know about pediatric skin conditions? A modified Delphi technique for curriculum development.

    Science.gov (United States)

    Feigenbaum, Dana F; Boscardin, Christy K; Frieden, Ilona J; Mathes, Erin F D

    2014-10-01

    There is limited access to pediatric dermatology in the United States, resulting in inadequate education and patient care. This Delphi study aimed to identify important objectives for a pediatric dermatology curriculum for general practitioners. A modified, 2-round Delphi technique was used to develop consensus on objectives developed by expert pediatric dermatologists. A panel of 20 experts (pediatric dermatologists, family practitioners, and general pediatricians) rated objectives using a 5-point Likert-type scale. Items with group medians 4.0 or greater with at least 70% agreement reached consensus. In round 1, the expert panel rated 231 objectives from 16 categories for inclusion in an online curriculum. In round 2, experts were given group feedback and rated 235 objectives. A total of 170 items met consensus. Generally, objectives surrounding common conditions including acne, molluscum, warts, atopic dermatitis, and newborn skin met consensus whereas objectives on rare growths, birthmarks, and inherited conditions failed to meet consensus. The Delphi panel consisted of US-based physicians, most in urban areas with a dedicated pediatric specialist at their institution. The accepted objectives encompass management of common conditions and referral of potentially dangerous diseases and can be used to develop a pediatric dermatology curriculum for primary care providers. Copyright © 2014 American Academy of Dermatology, Inc. Published by Elsevier Inc. All rights reserved.

  13. A water sustainability index for West Java - Part 2: refining the conceptual framework using Delphi technique.

    Science.gov (United States)

    Juwana, I; Perera, B J C; Muttil, N

    2010-01-01

    In the first paper of this two-part series on the development of a water sustainability index for West Java, a conceptual framework of West Java Water Sustainability Index (WJWSI) was developed. It consists of three main parts: components, indicators/sub-indicators and threshold values. This second paper of the series presents the application of the Delphi technique, followed by in-depth interviews with selected key experts, to refine the conceptual WJWSI framework. The Delphi application includes the design of the questionnaires, the selection of respondents, the distribution and collection of the completed questionnaires and the analysis of data. After Round One of the Delphi application, the respondents reached consensus for all proposed components in the conceptual framework. However, some modifications to the components were also suggested by few respondents. Regarding the indicators/sub-indicators, consensus for 9 of the proposed 12 indicators was reached, and 5 new indicators were suggested. For the threshold values, consensus was reached for threshold values of 5 indicators. In Round Two of the Delphi application, respondents were asked questions related to results from Round One, which include the modification on the components, indicators/sub-indicators which have not been agreed, and newly suggested indicators/sub-indicators and threshold values. Results of Round Two show that modifications on the components were agreed, and consensus was reached for 8 out of the proposed 9 indicators/sub-indicators. In terms of its components and indicators, the framework was then finalised in the in-depth interview with four key experts, selected from different respondent categories. For the threshold values not yet finalised, further study will be carried out, as there was not much input from the respondents in the Delphi application and the in-depth interview.

  14. Combination treatment of neuropathic pain: Danish expert recommendations based on a Delphi process

    DEFF Research Database (Denmark)

    Holbech, Jakob Vormstrup; Jung, A.; Jonsson, T.

    2017-01-01

    , but combination therapy had not been included in guidelines until recently. Based on clinical empiricism and scientific evidence, a Delphi consensus process provided a consolidated guidance on pharmacological combination treatment of NeP. METHODS: A two-round virtual internet-based Delphi process with 6 Danish...

  15. Validation of Criteria for Nosocomial Use of Amikacin in Brazil With the Delphi Technique

    OpenAIRE

    Noblat, Lúcia de Araújo Costa Beisl; Jesus,Rogerio Santos de; Noblat,Antonio Carlos Beisl; Oliveira,Márcio Galvão Guimarães de; Badaró, Roberto

    2006-01-01

    p. 173-178 The Delphi technique has been used since the 1950s to collect the opinions of experts; to gauge their indications, and in some instances, to develop a consensus. This systematic collection and aggregation of informed judgments from a group of experts on specific questions or issues is a highly efficient and cost-effective means to establish guidelines and policies, when compared to other strategies, such as committee meetings or personal interviews. Objective. Examine the con...

  16. Developing an industry-oriented safety curriculum using the Delphi technique.

    Science.gov (United States)

    Chen, Der-Fa; Wu, Tsung-Chih; Chen, Chi-Hsiang; Chang, Shu-Hsuan; Yao, Kai-Chao; Liao, Chin-Wen

    2016-09-01

    In this study, we examined the development of industry-oriented safety degree curricula at a college level. Based on a review of literature on the practices and study of the development of safety curricula, we classified occupational safety and health curricula into the following three domains: safety engineering, health engineering, and safety and health management. We invited 44 safety professionals to complete a four-round survey that was designed using a modified Delphi technique. We used Chi-square statistics to test the panel experts' consensus on the significance of the items in the three domains and employed descriptive statistics to rank the participants' rating of each item. The results showed that the top three items for each of the three domains were Risk Assessment, Dangerous Machinery and Equipment, and Fire and Explosion Prevention for safety engineering; Ergonomics, Industrial Toxicology, and Health Risk Assessment for health engineering; and Industrial Safety and Health Regulations, Accident Investigation and Analysis, and Emergency Response for safety and health management. Only graduates from safety programmes who possess practical industry-oriented abilities can satisfy industry demands and provide value to the existence of college safety programmes.

  17. The use of advanced web-based survey design in Delphi research.

    Science.gov (United States)

    Helms, Christopher; Gardner, Anne; McInnes, Elizabeth

    2017-07-16

    A discussion of the application of metadata, paradata and embedded data in web-based survey research, using two completed Delphi surveys as examples. Metadata, paradata and embedded data use in web-based Delphi surveys has not been described in the literature. The rapid evolution and widespread use of online survey methods imply that paper-based Delphi methods will likely become obsolete. Commercially available web-based survey tools offer a convenient and affordable means of conducting Delphi research. Researchers and ethics committees may be unaware of the benefits and risks of using metadata in web-based surveys. Discussion paper. Two web-based, three-round Delphi surveys were conducted sequentially between August 2014 - January 2015 and April - May 2016. Their aims were to validate the Australian nurse practitioner metaspecialties and their respective clinical practice standards. Our discussion paper is supported by researcher experience and data obtained from conducting both web-based Delphi surveys. Researchers and ethics committees should consider the benefits and risks of metadata use in web-based survey methods. Web-based Delphi research using paradata and embedded data may introduce efficiencies that improve individual participant survey experiences and reduce attrition across iterations. Use of embedded data allows the efficient conduct of multiple simultaneous Delphi surveys across a shorter timeframe than traditional survey methods. The use of metadata, paradata and embedded data appears to improve response rates, identify bias and give possible explanation for apparent outlier responses, providing an efficient method of conducting web-based Delphi surveys. © 2017 John Wiley & Sons Ltd.

  18. Terminating Sequential Delphi Survey Data Collection

    Science.gov (United States)

    Kalaian, Sema A.; Kasim, Rafa M.

    2012-01-01

    The Delphi survey technique is an iterative mail or electronic (e-mail or web-based) survey method used to obtain agreement or consensus among a group of experts in a specific field on a particular issue through a well-designed and systematic multiple sequential rounds of survey administrations. Each of the multiple rounds of the Delphi survey…

  19. Assessment of Competence in EVAR Procedures: A Novel Rating Scale Developed by the Delphi Technique.

    Science.gov (United States)

    Strøm, M; Lönn, L; Bech, B; Schroeder, T V; Konge, L

    2017-07-01

    To develop a procedure specific global rating scale for assessment of operator competence in endovascular aortic repair (EVAR). A Delphi approach was used to achieve expert consensus. A panel of 32 international experts (median 300 EVAR procedures, range 200-3000) from vascular surgery (n = 21) and radiology (n = 11) was established. The first Delphi round was based on a review of endovascular skills assessment papers, stent graft instructions for use, and structured interviews. It led to a primary pool of 83 items that were formulated as global rating scale items with tentative anchors. Iterative Delphi rounds were executed. The panellists rated the importance of each item on a 5 point Likert scale. Consensus was defined as 80% of the panel rating an item 4 or 5 in the primary round and 90% in subsequent rounds. Consensus on the final assessment tool was defined as Cronbach's alpha > .8 after a minimum of three rounds. Thirty-two of 35 invited experts participated. Three rounds of surveys were completed with a completion rate of 100% in the first two rounds and 91% in round three. The 83 primary assessment items were supplemented with five items suggested by the panel and reduced to seven pivotal assessment items that reached consensus, Cronbach's alpha = 0.82. The seven item rating scale covers key elements of competence in EVAR stent placement and deployment. Each item has well defined grades with explicit anchors at unacceptable, acceptable, and superior performance on a 5 point Likert scale. The Delphi methodology allowed for international consensus on a new procedure specific global rating scale for assessment of competence in EVAR. The resulting scale, EndoVascular Aortic Repair Assessment of Technical Expertise (EVARATE), represents key elements in the procedure. EVARATE constitutes an assessment tool for providing structured feedback to endovascular operators in training. Copyright © 2017 European Society for Vascular Surgery. Published by Elsevier

  20. Alternative method of highway traffic safety analysis for developing countries using delphi technique and Bayesian network.

    Science.gov (United States)

    Mbakwe, Anthony C; Saka, Anthony A; Choi, Keechoo; Lee, Young-Jae

    2016-08-01

    Highway traffic accidents all over the world result in more than 1.3 million fatalities annually. An alarming number of these fatalities occurs in developing countries. There are many risk factors that are associated with frequent accidents, heavy loss of lives, and property damage in developing countries. Unfortunately, poor record keeping practices are very difficult obstacle to overcome in striving to obtain a near accurate casualty and safety data. In light of the fact that there are numerous accident causes, any attempts to curb the escalating death and injury rates in developing countries must include the identification of the primary accident causes. This paper, therefore, seeks to show that the Delphi Technique is a suitable alternative method that can be exploited in generating highway traffic accident data through which the major accident causes can be identified. In order to authenticate the technique used, Korea, a country that underwent similar problems when it was in its early stages of development in addition to the availability of excellent highway safety records in its database, is chosen and utilized for this purpose. Validation of the methodology confirms the technique is suitable for application in developing countries. Furthermore, the Delphi Technique, in combination with the Bayesian Network Model, is utilized in modeling highway traffic accidents and forecasting accident rates in the countries of research.

  1. Delphi, Dice and Dominos: Techniques to Understand and Mitigate Technical Risk

    Science.gov (United States)

    2015-12-01

    tourism , educa- tion and marketing. Program managers can use Delphi in situa- tions of complexity, uncertainty and where no hard facts exist. Delphi...more than 1,000. The Delphi process does not call for the panel size to be representative samples for statistical purposes. However, 30 panel

  2. Photosensitive gas detectors for the ring-imaging Cherenkov (RICH) technique and the DELPHI barrel RICH prototype

    Energy Technology Data Exchange (ETDEWEB)

    Arnold, R.; Berst, J.D.; Christophel, E.; Guyonnet, J.L.; Baillon, P.; Bosteels, M.; Passardi, G.; Besch, H.J.; Seguinot, J.; Tocqueville, J.

    1986-12-01

    After a short introduction to the ring-imaging technique, the principal types of photosensitive gas detectors are discussed. In the second part, status and results of the DELPHI barrel RICH prototype are presented. A short description of a possible very fast RICH for future hadron colliders is given.

  3. DELirium Prediction Based on Hospital Information (Delphi) in General Surgery Patients.

    Science.gov (United States)

    Kim, Min Young; Park, Ui Jun; Kim, Hyoung Tae; Cho, Won Hyun

    2016-03-01

    To develop a simple and accurate delirium prediction score that would allow identification of individuals with a high probability of postoperative delirium on the basis of preoperative and immediate postoperative data.Postoperative delirium, although transient, is associated with adverse outcomes after surgery. However, there has been no appropriate tool to predict postoperative delirium.This was a prospective observational single-center study, which consisted of the development of the DELirium Prediction based on Hospital Information (Delphi) score (n = 561) and its validation (n = 533). We collected potential risk factors for postoperative delirium, which were identified by conducting a comprehensive review of the literatures.Age, low physical activity, hearing impairment, heavy alcoholism, history of prior delirium, intensive care unit (ICU) admission, emergency surgery, open surgery, and increased preoperative C-reactive protein were identified as independent predictors of postoperative delirium. The Delphi score was generated using logistic regression coefficients. The maximum Delphi score was 15 and the optimal cut-off point identified with the Youden index was 6.5. Generated area under the (AUC) of the receiver operating characteristic (ROC) curve was 0.911 (95% CI: 0.88-0.94). In the validation study, the calculated AUC of the ROC curve based on the Delphi score was 0.938 (95% Cl: 0.91-0.97). We divided the validation cohort into the low-risk group (Delphi score 0-6) and high-risk group (7-15). Sensitivity of Delphi score was 80.8% and specificity 92.5%.Our proposed Delphi score could help health-care provider to predict the development of delirium and make possible targeted intervention to prevent delirium in high-risk surgery patients.

  4. [Study on commercial specification of atractylodes based on Delphi method].

    Science.gov (United States)

    Wang, Hao; Chen, Li-Xiao; Huang, Lu-Qi; Zhang, Tian-Tian; Li, Ying; Zheng, Yu-Guang

    2016-03-01

    This research adopts "Delphi method" to evaluate atractylodes traditional traits and rank correlation. By using methods of mathematical statistics the relationship of the traditional identification indicators and atractylodes goods rank correlation was analyzed, It is found that the main characteristics affectingatractylodes commodity specifications and grades of main characters wereoil points of transaction,color of transaction,color of surface,grain of transaction,texture of transaction andspoilage. The study points out that the original "seventy-six kinds of medicinal materials commodity specification standards of atractylodes differentiate commodity specification" is not in conformity with the actual market situation, we need to formulate corresponding atractylodes medicinal products specifications and grades.This study combined with experimental results "Delphi method" and the market actual situation, proposed the new draft atractylodes commodity specifications and grades, as the new atractylodes commodity specifications and grades standards. It provides a reference and theoretical basis. Copyright© by the Chinese Pharmaceutical Association.

  5. The Desired Learning Outcomes of School-Based Nutrition/Physical Activity Health Education: A Health Literacy Constructed Delphi Survey of Finnish Experts

    Science.gov (United States)

    Ormshaw, Michael James; Kokko, Sami Petteri; Villberg, Jari; Kannas, Lasse

    2016-01-01

    Purpose: The purpose of this paper is to utilise the collective opinion of a group of Finnish experts to identify the most important learning outcomes of secondary-level school-based health education, in the specific domains of physical activity and nutrition. Design/ Methodology/ Approach: The study uses a Delphi survey technique to collect the…

  6. The Desired Learning Outcomes of School-Based Nutrition/Physical Activity Health Education: A Health Literacy Constructed Delphi Survey of Finnish Experts

    Science.gov (United States)

    Ormshaw, Michael James; Kokko, Sami Petteri; Villberg, Jari; Kannas, Lasse

    2016-01-01

    Purpose: The purpose of this paper is to utilise the collective opinion of a group of Finnish experts to identify the most important learning outcomes of secondary-level school-based health education, in the specific domains of physical activity and nutrition. Design/ Methodology/ Approach: The study uses a Delphi survey technique to collect the…

  7. B/S system design based on Delphi/ASP%基于Delphi/ASP的B/S系统设计

    Institute of Scientific and Technical Information of China (English)

    陈振庆

    2006-01-01

    ASP技术是以internet/intranet为平台的web技术, VB/ASP、VC++/ASP开发B/S系统技术比较成熟,而系统介绍Delphi/ASP设计B/S系统的资料非常缺乏,文章介绍了Delphi与ASP间的通信技术以及Delphi/ASP环境下设计B/S系统的方法与技术.

  8. A Delphi Study of Effective Practices for Developing Competency-Based Learning Models in Higher Education

    Science.gov (United States)

    McIntyre-Hite, Lisa

    2016-01-01

    Currently, there is an increase in competency-based education programs in higher education institutions in response to student and employer needs. However, research is lacking on effective practices for developing competencies, assessments, and learning resources for these programs. The purpose of this qualitative Delphi study was to gather expert…

  9. Using the Delphi Technique to Identify Key Elements for Effective and Sustainable Visitor Use Planning Frameworks

    Directory of Open Access Journals (Sweden)

    Jessica P. Fefer

    2016-04-01

    Full Text Available Protected areas around the world receive nearly 800 billion visits/year, with international tourism continuing to increase. While protected areas provide necessary benefits to communities and visitors, the increased visitation may negatively impact the resource and the recreational experience, hence the need to manage visitor use in protected areas around the world. This research focused on obtaining information from experts to document their experiences utilizing one visitor use planning framework: Visitor Experience and Resource Protection (VERP. Using the Delphi Technique, 31 experts from seven regions around the world were asked to identify elements necessary for effective visitor management, as well as elements that facilitated or limited success when using VERP. Elements were categorized and rated in terms of importance. Scoring of the final categories was analyzed using Wilcoxon and Median non-parametric statistical tests. Results suggest that planning challenges stem from limitations in organizational capacity to support a long-term, adaptive management process, inferring that VERP may be sufficiently developed, but implementation capacity may not. The results can be used to refine existing frameworks, and to aid in the development of new recreation frameworks.

  10. Core competency in mechanical ventilation: development of educational objectives using the Delphi technique.

    Science.gov (United States)

    Goligher, Ewan C; Ferguson, Niall D; Kenny, Lisa P

    2012-10-01

    We sought to identify and standardize the core clinical knowledge and skills required to care for patients receiving mechanical ventilation. Prospective survey reaching consensus by the Delphi technique. North American survey conducted anonymously by electronic e-mail. International experts in mechanical ventilation, frontline resident educators, medical education experts, and community intensivists were recruited to participate Fourteen panelists participated (ten content experts, three resident educators, one medical education expert, zero community intensivists). Individual panelists generated a total of 200 educational objectives, of which 109 were duplicates. Of the remaining 91 items, 56 met predefined consensus criteria for inclusion in the final set of educational objectives. The educational objectives spanned a broad range of categories, including respiratory physiology, noninvasive ventilation, lung protective ventilation, weaning, and withholding and withdrawing mechanical ventilation. Agreement among panelists on the items included was high (median proportion supporting item inclusion was 88%, range 70%-100%). There is a consensus that general resident core competency in mechanical ventilation requires a broad range of knowledge application and skill. These educational objectives may help identify and standardize the educational outcomes related to mechanical ventilation that residents should achieve.

  11. Content validation of the Self-perception of Family Health Status scale using the Delphi technique.

    Science.gov (United States)

    Lima-Rodríguez, Joaquín Salvador; Lima-Serrano, Marta; Jiménez-Picón, Nerea; Domínguez-Sánchez, Isabel

    2013-01-01

    To ascertain the content validity of the Self-perception of Family Health Status scale. A validation study of an instrument with an online Delphi panel using the consensus technique. Eighteen experts in the subject were intentionally selected, with a multidisciplinary origin and representing different professional fields. Each of the proposed items was assessed using a five-point scale, and open-ended questions, to modify or propose items. Descriptive analysis was performed of the sample and the items, applying criteria of validation/elimination. The first round had a response rate of 83.3% and validated 75 of the 96 proposed items; the second had a response rate of 80%, and validated the 21 newly created items, concluding the panel of experts. We present an instrument to measure self-perception of family health status, from a nursing perspective. This may be an advance in scientific knowledge, to facilitate the assessment of the state of health of the family unit, enabling detection of alterations, and to facilitate interventions to prevent consequences to the family unit and its members. It can be used in clinical care, research or teaching.

  12. Using Delphi Technique and the P-Process model to assess health communication programmes in Nigeria

    Directory of Open Access Journals (Sweden)

    Abimbola Onigbanjo-Williams

    2015-09-01

    Full Text Available Strategic health communication is an integral part of the programmes and development that influence decisions regarding health. Health communication is often integrated into public health interventions to improve programme outcomes. Despite the massive donor funding for public health programmes in Nigeria, there is limited information on the current status of health communication programmes. This study aims to identify the knowledge gaps, describe the future direction and highlight recommendations for strengthening health communication programmes in Nigeria. Using a purposive sampling methodology, the online study used a two-staged Delphi Technique and the P-Process model to collect data from key stakeholders. Stakeholders included donors, government, civil society organisations, research institutions, education and training institutions, and communities. Descriptive analysis was done using SPSS. Capacity-building gaps were identified and a conceptual framework was developed. These gaps included: the low technical capacity of stakeholders in health communication, limited resources for organisations to implement activities, the lack of a strategic framework to guide the implementation of health communication programmes, and minimal collaboration with stakeholders. These findings provided an insight into the current state of health communication programmes, which is mainly at the programme activity level. In this study, the findings highlighted a critical need to develop and strengthen health communication programmes in Nigeria with a view to improving performance and health outcomes and optimising healthservice delivery in the country.

  13. USING THE DELPHI TECHNIQUE TO DEVELOP EFFECTIVENESS INDICATORS FOR SOCIAL MARKETING COMMUNICATION TO REDUCE HEALTH-RISK BEHAVIORS AMONG YOUTH.

    Science.gov (United States)

    Vantamay, Nottakrit

    2015-09-01

    This study aimed to develop effectiveness indicators for social marketing communication to reduce health-risk behaviors among Thai youth by using the Delphi technique. The Delphi technique is a research approach used to gain consensus through a series of two or more rounds of questionnaire surveys where information and results are fed back to panel members between each round and it has been extensively used to generate many indicators relevant to health behaviors. The Delphi technique was conducted in 3 rounds by consulting a panel of 15 experts in the field of social marketing communication for public health campaigns in Thailand. We found forty-nine effectiveness indicators in eight core components reached consensus. These components were: 1) attitude about health-risk behavior reduction, 2) subjective norms, 3) perceived behavioral control, 4) intention to reduce health-risk behaviors, 5) practices for reducing health-risk behaviors, 6) knowledge about the dangers and impact of health-risk behaviors, 7) campaign brand equity, and 8) communication networks. These effectiveness indicators could be applied by health promotion organizations for evaluating the effectiveness of social marketing communication to effectively reduce health-risk behaviors among youth.

  14. Identifying and Prioritizing Effective Factors on Classifying A Private Bank Customers by Delphi Technique and Analytical Hierarchy Process (AHP

    Directory of Open Access Journals (Sweden)

    S. Khayatmoghadam

    2013-05-01

    Full Text Available Banking industry development and presence of different financial institutions cause to increase competition in customer and their capitals attraction so that there are about 28 banks and many credit and financial institutions from which 6 banks are public and 22 banks are private. Among them, public banks have a more appropriate situation than private banks with regard to governmental relations and support and due to geographical expansion and longer history. But due to lack of above conditions; private banks try to attract customers with regarding science areas to remedy this situation. Therefore, in this study we are decided to review banking customers from a different viewpoint. For this reason, we initially obtained ideal indications from banking viewpoint in two-story of uses and resources customers using experts and Delphi technique application which based on this, indicators such as account workflow, account average, lack of returned cheque, etc and in uses section, the amount of facility received, the amount of received warranties, etc, were determined. Then, using a Hierarchical Analysis (AHP method and experts opinions through software Expert Choice11, priority of these criteria were determined and weight of each index was determined. It should be noted that statistical population of bank experts associated with this study were queue and staff. Also obtained results can be used as input for customer grouping in line with CRM techniques implementation.

  15. Using the Delphi questionnaire technique to create a reading comprehension resource guide for middle school science teachers

    Science.gov (United States)

    Wegner, Molly F.

    As students begin middle school, they are expected to possess and apply a wide array of nonfiction reading strategies if they are to comprehend new concepts from nonfiction texts. Although strategies and resource guides for fiction reading are available, an effective nonfiction reading comprehension resource guide tailored to middle school science teachers is lacking. The conceptual framework guiding this study is based on schema theory that supports the use of prior knowledge as a foundation for learning. The purpose of this project study was to address this local problem by providing middle school science teachers with a user-friendly resource for nonfiction reading comprehension strategies in a science context. The research question examined nonfiction reading comprehension strategies that could supplement middle school science teachers' instructional practices to increase student comprehension in science, as reflected on the results of state standardized tests. This project study consulted science and language arts teachers using a Delphi questionnaire technique to achieve a consensus through multiple iterations of questionnaires. Science teachers identified 7 areas of concern as students read nonfiction texts, and language arts teachers suggested effective reading comprehension strategies to address these areas. Based on the consensus of reading comprehension strategies and review of literature, a resource guide for middle school science teachers was created. By improving reading comprehension in content areas, teachers may not only increase student learning, but also underscore the importance of literacy relating to life-long learning through future occupations, academic endeavors, and society as well.

  16. Building consensus on key priorities for rural health care in South Africa using the Delphi technique

    Directory of Open Access Journals (Sweden)

    Marije Versteeg

    2013-01-01

    Full Text Available Background: South Africa is currently undergoing major health system restructuring in an attempt to improve health outcomes and reduce inequities in access. Such inequities exist between private and public health care and within the public health system itself. Experience shows that rural health care can be disadvantaged in policy formulation despite good intentions. The objective of this study was to identify the major challenges and priority interventions for rural health care provision in South Africa thereby contributing to pro-rural health policy dialogue. Methods: The Delphi technique was used to develop consensus on a list of statements that was generated through interviews and literature review. A panel of rural health practitioners and other stakeholders was asked to indicate their level of agreement with these statements and to rank the top challenges in and interventions required for rural health care. Results: Response rates ranged from 83% in the first round (n=44 to 64% in the final round (n=34. The top five priorities were aligned to three of the WHO health system building blocks: human resources for health (HRH, governance, and finance. Specifically, the panel identified a need to focus on recruitment and support of rural health professionals, the employment of managers with sufficient and appropriate skills, a rural-friendly national HRH plan, and equitable funding formulae. Conclusion: Specific policies and strategies are required to address the greatest rural health care challenges and to ensure improved access to quality health care in rural South Africa. In addition, a change in organisational climate and a concerted effort to make a career in rural health appealing to health care workers and adequate funding for rural health care provision are essential.

  17. Online survey system for image-based clinical guideline studies using the Delphi method.

    Science.gov (United States)

    Harper, Todd M; Teng, Chia-Chi

    2011-01-01

    The increasing use of health information technology (HIT) is due to a rising interest in improving the quality of health care. HIT has the potential to reduce cost and transform services. Proper clinical support systems will contribute to the meaningful use of HIT systems by providing a wide array of data to clinicians for the diagnosis and treatments. Clinical guidelines, created by a consensus of experts, can be put in place to assist physicians in making clinical decisions. Delphi methods are commonly used to create consensus from surveys completed by a team of experts. Image based studies could create guidelines that standardize severity, deformity or other clinical classifications. As these studies were traditionally conducted using paper based media, the cost and time requirement often make the process impractical. Ware proposing a web based system to aid medical researchers in conducting image based Delphi studies for improved clinical guidelines and decision support.

  18. Context-specific definitions of organizational concepts: Defining 'team effectiveness' with use of the Delphi Technique

    NARCIS (Netherlands)

    Lohuis, Anne Marie; Vuuren, van Mark; Bohlmeijer, Ernst

    2013-01-01

    Definitions are social constructions rather than objective descriptions. They set clear boundaries for what is considered normal in a situation. Common words in organizations, like effectiveness or success, carry different meaningss in different contexts. In this paper, we evaluate the Delphi Techni

  19. Using the Delphi Technique to Assess Educational Needs Related to Extension's 4-H Beef Program.

    Science.gov (United States)

    Shih, Ching-Chun; Gamon, Julia A.

    1997-01-01

    Delphi panels completing questionnaires included 32 parents of 4-H students, 16 extension beef specialists, 21 4-H field specialists, and 21 industry representatives. They identified 31 subject-matter and 30 life-skill topics useful for 4-H manuals. Emerging topics included consumer and environmental concerns. (SK)

  20. Context-specific definitions of organizational concepts: Defining 'team effectiveness' with use of the Delphi Technique

    NARCIS (Netherlands)

    Lohuis, Anne Marie; van Vuuren, Hubrecht A.; Bohlmeijer, Ernst Thomas

    2014-01-01

    Definitions are social constructions rather than objective descriptions. They set clear boundaries for what is considered normal in a situation. Common words in organizations, like effectiveness or success, carry different meaningss in different contexts. In this paper, we evaluate the Delphi

  1. Incorporating the Delphi Technique to investigate renewable energy technology transfer in Saudi Arabia

    Science.gov (United States)

    Al-Otaibi, Nasir K.

    Saudi Arabia is a major oil-producing nation facing a rapidly-growing population, high unemployment, climate change, and the depletion of its natural resources, potentially including its oil supply. Technology transfer is regarded as a means to diversify countries' economies beyond their natural resources. This dissertation examined the opportunities and barriers to utilizing technology transfer successfully to build renewable energy resources in Saudi Arabia to diversify the economy beyond oil production. Examples of other developing countries that have successfully used technology transfer to transform their economies are explored, including Japan, Malayasia, and the United Arab Emirates. Brazil is presented as a detailed case study to illustrate its transition to an economy based to a much greater degree than before on renewable energy. Following a pilot study, the Delphi Method was used in this research to gather the opinions of a panel of technology transfer experts consisting of 10 heterogeneous members of different institutions in the Kingdom of Saudi Arabia, including aviation, telecommunication, oil industry, education, health systems, and military and governmental organizations. In three rounds of questioning, the experts identified Education, Dependence on Oil, and Manpower as the 3 most significant factors influencing the potential for success of renewable energy technology transfer for Saudi Arabia. Political factors were also rated toward the "Very Important" end of a Likert scale and were discussed as they impact Education, Oil Dependence, and Manpower. The experts' opinions are presented and interpreted. They form the basis for recommended future research and discussion of how in light of its political system and its dependence on oil, Saudi Arabia can realistically move forward on renewable energy technology transfer and secure its economic future.

  2. Developing consensus-based policy solutions for medicines adherence for Europe: a delphi study

    Directory of Open Access Journals (Sweden)

    Clyne Wendy

    2012-11-01

    Full Text Available Abstract Background Non-adherence to prescribed medication is a pervasive problem that can incur serious effects on patients’ health outcomes and well-being, and the availability of resources in healthcare systems. This study aimed to develop practical consensus-based policy solutions to address medicines non-adherence for Europe. Methods A four-round Delphi study was conducted. The Delphi Expert Panel comprised 50 participants from 14 countries and was representative of: patient/carers organisations; healthcare providers and professionals; commissioners and policy makers; academics; and industry representatives. Participants engaged in the study remotely, anonymously and electronically. Participants were invited to respond to open questions about the causes, consequences and solutions to medicines non-adherence. Subsequent rounds refined responses, and sought ratings of the relative importance, and operational and political feasibility of each potential solution to medicines non-adherence. Feedback of individual and group responses was provided to participants after each round. Members of the Delphi Expert Panel and members of the research group participated in a consensus meeting upon completion of the Delphi study to discuss and further refine the proposed policy solutions. Results 43 separate policy solutions to medication non-adherence were agreed by the Panel. 25 policy solutions were prioritised based on composite scores for importance, and operational and political feasibility. Prioritised policy solutions focused on interventions for patients, training for healthcare professionals, and actions to support partnership between patients and healthcare professionals. Few solutions concerned actions by governments, healthcare commissioners, or interventions at the system level. Conclusions Consensus about practical actions necessary to address non-adherence to medicines has been developed for Europe. These actions are also applicable to

  3. Transformation from student to occupational therapist: Using the Delphi technique to identify the threshold concepts of occupational therapy.

    Science.gov (United States)

    Nicola-Richmond, Kelli M; Pépin, Geneviève; Larkin, Helen

    2016-04-01

    Understanding and facilitating the transformation from occupational therapy student to practitioner is central to the development of competent and work-ready graduates. However, the pivotal concepts and capabilities that need to be taught and learnt in occupational therapy are not necessarily explicit. The threshold concepts theory of teaching and learning proposes that every discipline has a set of transformational concepts that students must acquire in order to progress. As students acquire the threshold concepts, they develop a transformed way of understanding content related to their course of study which contributes to their developing expertise. The aim of this study was to identify the threshold concepts of occupational therapy. The Delphi technique, a data collection method that aims to demonstrate consensus in relation to important questions, was used with three groups comprising final year occupational therapy students (n = 11), occupational therapy clinicians (n = 21) and academics teaching occupational therapy (n = 10) in Victoria, Australia. Participants reached consensus regarding 10 threshold concepts for the occupational therapy discipline. These are: understanding and applying the models and theories of occupational therapy; occupation; evidence-based practice; clinical reasoning; discipline specific skills and knowledge; practising in context; a client-centred approach; the occupational therapist role; reflective practice and; a holistic approach. The threshold concepts identified provide valuable information for the discipline. They can potentially inform the development of competencies for occupational therapy and provide guidance for teaching and learning activities to facilitate the transformation to competent practitioner. © 2015 Occupational Therapy Australia.

  4. Automatic Office Reviewed Technology Based on Delphi%基于Delphi的Office自动评阅技术的研究

    Institute of Scientific and Technical Information of China (English)

    刘瑶

    2013-01-01

    为解决Office操作题自动评阅提高效率问题,首先介绍了Office文档格式的识别方法以及Office对象模型层次结构等内容,其次,对Delphi实现Office自动评阅的技巧给予分析和研究,并结合示例进行详细的阐述.%To improve efficiency of Office automatic review technology, first the recognition method of Office document formats is introduced, as well as the Office object model hierarchy. Secondly, analysis and research for Office automatic review techniques based on Delphi, in combination with the examples set out in detail.

  5. Applying stakeholder Delphi techniques for planning sustainable use of aquatic resources

    DEFF Research Database (Denmark)

    Lund, Søren; Banta, Gary Thomas; Bunting, Stuart W

    2015-01-01

    The HighARCS (Highland Aquatic Resources Conservation and Sustainable Development) project was a participatory research effort to map and better understand the patterns of resource use and livelihoods of communities who utilize highland aquatic resources in five sites across China, India...... and Vietnam. The purpose of this paper is to give an account of how the stakeholder Delphi method was adapted and applied to support the participatory integrated action planning for sustainable use of aquatic resources facilitated within the HighARCS project. An account of the steps taken and results recorded...... planning. It was found that the tool was not as effective as expected in creating stakeholder consensus where issues had already been the object of previous research and discussions with local stakeholders or where asymmetrical power relations between stakeholder groups constrained the reliability...

  6. Using a Delphi technique to seek consensus regarding definitions, descriptions and classification of terms related to implicit and explicit forms of motor learning

    NARCIS (Netherlands)

    Kleynen, Melanie; Braun, Susy; Bleijlevens, Michel; Lexis, Monique; Rasquin, Sascha; Halfens, Jos; Wilson, Mark; Beurskens, Anna; Masters, Rich

    2014-01-01

    Background: Motor learning is central to domains such as sports and rehabilitation; however, often terminologies are insufficiently uniform to allow effective sharing of experience or translation of knowledge. A study using a Delphi technique was conducted to ascertain level of agreement between ex

  7. Air Base Wing and Air Mobility Wing Consolidating on AMC-LED Joint Bases: A Delphi Study

    Science.gov (United States)

    2014-06-13

    Delphi Method ....................................................................................................... 16 The Likert Scale...highlighting the results of this study and making recommendations for future research. 16 II. Literature Review The Delphi Method ...available to incorporate massive amounts of information to predict the future is the Delphi method . The Delphi method could be used to evaluate a

  8. Using a web-based survey tool to undertake a Delphi study: application for nurse education research.

    Science.gov (United States)

    Gill, Fenella J; Leslie, Gavin D; Grech, Carol; Latour, Jos M

    2013-11-01

    The Internet is increasingly being used as a data collection medium to access research participants. This paper reports on the experience and value of using web-survey software to conduct an eDelphi study to develop Australian critical care course graduate practice standards. The eDelphi technique used involved the iterative process of administering three rounds of surveys to a national expert panel. The survey was developed online using SurveyMonkey. Panel members responded to statements using one rating scale for round one and two scales for rounds two and three. Text boxes for panel comments were provided. For each round, the SurveyMonkey's email tool was used to distribute an individualized email invitation containing the survey web link. The distribution of panel responses, individual responses and a summary of comments were emailed to panel members. Stacked bar charts representing the distribution of responses were generated using the SurveyMonkey software. Panel response rates remained greater than 85% over all rounds. An online survey provided numerous advantages over traditional survey approaches including high quality data collection, ease and speed of survey administration, direct communication with the panel and rapid collation of feedback allowing data collection to be undertaken in 12 weeks. Only minor challenges were experienced using the technology. Ethical issues, specific to using the Internet to conduct research and external hosting of web-based software, lacked formal guidance. High response rates and an increased level of data quality were achieved in this study using web-survey software and the process was efficient and user-friendly. However, when considering online survey software, it is important to match the research design with the computer capabilities of participants and recognize that ethical review guidelines and processes have not yet kept pace with online research practices. Copyright © 2013 Elsevier Ltd. All rights reserved.

  9. A Delphi-Based Approach for Detecting Key E-Learning Trends in Postgraduate Education: The Spanish Case

    Science.gov (United States)

    Lopez-Catalan, Blanca; Bañuls, Victor A.

    2017-01-01

    Purpose: The purpose of this paper is to present the results of national level Delphi study carried out in Spain aimed at providing inputs for higher education administrators and decision makers about key e-learning trends for supporting postgraduate courses. Design/methodology/approach: The ranking of the e-learning trends is based on a…

  10. Characteristics and functions for place brands based on a Delphi method

    Directory of Open Access Journals (Sweden)

    J de San Eugenio Vela

    2013-10-01

    Full Text Available Introduction. Representation of territories through brands is a recurring issue in today’s modern society. The aim of this article is to establish certain characteristics and functions pertaining to brands linked to geographical areas. Methodology. The decision was made to conduct qualitative research based on a Delphi method comprising a panel of fourteen place branding experts. Results. In relation to commercial brands, it is found that, since they are publicly owned, place brands call for more complex management, preferably on three levels: public administration, private organisations and citizens. Conclusions. Based on the results obtained, it is concluded that management of places centres on the projection of unique, spatial identities on the context of increasing competition between territories.

  11. Delphi technique applied to risk identification and assessment on pipe supports fabrication and erection contracts; Aplicacao da tecnica Delphi para identificacao e avaliacao de riscos na contratacao e montagem de suportes de tubulacao

    Energy Technology Data Exchange (ETDEWEB)

    Cruz, Rodrigo Luiz Neves; Balbi, Diego Junca de Gonzaga [Promon Engenharia, Sao Paulo, SP (Brazil)

    2012-07-01

    Through the years, Risk Management became an accepted subject in Brazilian Organizations, with its own language, techniques and tools; and its processes are being more and more often introduced in its management models. However, risk identification, assessment and management is a difficult task, and can be even more difficult for construction industry-related projects, for these ventures tend to be more dynamic and complex. In this sense, the objective of this paper is to present the application of Delphi technique for risk identification in the erection of piping support. To achieve the desired objective, a literature review of theory references was conducted to understand concepts involved. To apply the technique itself, experts in plant erection were involving. (author)

  12. Delphi cookbook

    CERN Document Server

    Teti, Daniele

    2014-01-01

    Intended to refresh the basics of Delphi as well as advance your knowledge to the next level, it is assumed you will know RAD studio and the Object Pascal language. However, if you are not an experienced RAD studio programmer this accessible guide will still develop those initial crucial skills.

  13. Defining sustainable practice in community-based health promotion: a Delphi study of practitioner perspectives.

    Science.gov (United States)

    Harris, Neil; Sandor, Maria

    2013-04-01

    Sustainability of practice must be a central imperative in the practice of community-based health promotion to achieve population health and attract a greater share of public health spending. Although there has been some consideration of sustainability at the project or program levels, often understood as intervention longevity, very limited attention has been given to understanding sustainable practice. The present study develops a definition and features of sustainable practice in community-based health promotion through a Delphi method with health promotion practitioners in Queensland, Australia. The study presents a consensus definition and features of sustainable practice. The definition highlights the importance of collaboration, health determinants and aspirations, processes and outcomes. The four features of sustainable practice identified in the study are: (1) effective relationships and partnerships; (2) evidence-based decision making and practice; (3) emphasis on building community capacity; and (4) supportive context for practice. The definition and features are, to a large extent, consistent with the limited literature around sustainability at the project and program levels of health promotion. Together, they provide insight into a form of community-based health promotion that will be both viable and productive. So what? This consensus understanding of sustainable practice articulates the foundations of working effectively with local communities in achieving improved population health within global limits.

  14. Development of an on-line measuring and monitoring system for fouling based on Delphi

    Science.gov (United States)

    Wang, Yuanyuan; Wang, Jianguo

    2010-12-01

    The presence of fouling reduced the heat transfer capability of heat transfer equipments and increased the flow resistance of the medium. Thus the resulting series of economic losses received worldwide attention of the relevant heat transfer industry and countries. For the heating system fouling, direct measurement is nearly impossible. And it is extremely difficulty of structuring mathematic model. Although there are existing monitoring methods, results are not satisfactory. This paper intends to develop a new on-line measuring and monitoring system for heating system fouling. The operating theory of this on-line measuring and monitoring system is based on the soft-sensor technology and Expert System. We select some easily measurements as primary variables, such as pressures, flow rates and temperatures. Through some algorithms, we obtained dozens of secondary variables, for example, the coefficient of flow resistance, the efficiency and cost of heating system and so on. Based on these variables, we construct the knowledge base of this System. This system mainly uses Delphi and Excel as development tools. Now, the system is running well in some heating station, and has reached the expecting result.

  15. DELPHI Exhibition

    CERN Multimedia

    2000-01-01

    DELPHI (Detector for Lepton, Photon and Hadron Identification) is a detector for e+e- physics, with special emphasis on powerful particle identification, three-dimensional information, high granularity and precise vertex determination. It is installed at LEP (Large Electron and Positron collider) at CERN where it has operated since 1989. The present collaboration consists of about 550 physicists from 56 participating universities and institutes in 22 countries.

  16. Essential Concepts of Nanoscale Science and Technology for High School Students Based on a Delphi Study by the Expert Community

    Science.gov (United States)

    Sakhnini, Sohair; Blonder, Ron

    2015-07-01

    Nanoscale science and technology (NST) is an important new field in modern science. In the current study, we seek to answer the question: 'What are the essential concepts of NST that should be taught in high school'? A 3-round Delphi study methodology was applied based on 2 communities of experts in nanotechnology research and science education. Eight essential concepts in NST were identified. Each concept is accompanied by its explanation, definition, importance and includes subcategories that compose it. Three concepts emerged in the Delphi study, which were not identified before: functionality, classification of nanomaterials, and the making of nanotechnology. Differences between the concepts suggested by the 2 communities of experts were found. The results of this study serve as a tool to examine different nanotechnology programs that were reported thus far and to make recommendations for designing a NST program for high school students that includes the essential concepts.

  17. Sales Forecasting Based on ERP System through Delphi, fuzzy Clustering and Back-Propagation Neural Networks with adaptive learning rate

    Directory of Open Access Journals (Sweden)

    Attariuas Hicham

    2012-11-01

    Full Text Available In recent years, there has been a strong tendency by companies to use centralized management systems like Enterprise resource planning (ERP. ERP systems offer a comprehensive and simplified process managements and extensive functional coverage. Sales management module is an important element business management of ERP. This paper describes an intelligent hybrid sales forecasting system ERP-FCBPN sales forecast based on architecture of ERP through Delphi, fuzzy clustering and Back-propagation (BP Neural Networks with adaptive learning rate (FCBPN. The proposed approach is composed of three stages: (1 Stage of data collection: Data collection will be implemented from the fields (attributes existing at the interfaces (Tables the database of the ERP. Collection of Key factors that influence sales be made using the Delphi method; (2 Stage of Data preprocessing: Winter Exponential Smoothing method will be utilized to take the trend effect into consideration. (3 Stage of learning by FCBPN: We use hybrid sales forecasting system based on Delphi, fuzzy clustering and Back-propagation (BP Neural Networks with adaptive learning rate (FCBPN. The data for this study come from an industrial company that manufactures packaging. Experimental results show that the proposed model outperforms the previous and traditional approaches. Therefore, it is a very promising solution for industrial forecasting.

  18. The DELPHI silicon tracker

    CERN Document Server

    Pernegger, H

    1997-01-01

    The DELPHI collaboration has upgraded the Silicon Vertex Detector in order to cope with the physics requirements for LEP200. The new detector consists of a barrel section with three layers of microstrip detectors and a forward extension made of hybrid pixel and large pitch strip detectors. The layout of the detector and the techniques used for the different parts of the new silicon detector shall be described.

  19. Which Dimensions of Patient-Centeredness Matter? - Results of a Web-Based Expert Delphi Survey.

    Directory of Open Access Journals (Sweden)

    Jördis M Zill

    Full Text Available Present models and definitions of patient-centeredness revealed a lack of conceptual clarity. Based on a prior systematic literature review, we developed an integrative model with 15 dimensions of patient-centeredness. The aims of this study were to 1 validate, and 2 prioritize these dimensions.A two-round web-based Delphi study was conducted. 297 international experts were invited to participate. In round one they were asked to 1 give an individual rating on a nine-point-scale on relevance and clarity of the dimensions, 2 add missing dimensions, and 3 prioritize the dimensions. In round two, experts received feedback about the results of round one and were asked to reflect and re-rate their own results. The cut-off for the validation of a dimension was a median < 7 on one of the criteria.105 experts participated in round one and 71 in round two. In round one, one new dimension was suggested and included for discussion in round two. In round two, this dimension did not reach sufficient ratings to be included in the model. Eleven dimensions reached a median ≥ 7 on both criteria (relevance and clarity. Four dimensions had a median < 7 on one or both criteria. The five dimensions rated as most important were: patient as a unique person, patient involvement in care, patient information, clinician-patient communication and patient empowerment.11 out of the 15 dimensions have been validated through experts' ratings. Further research on the four dimensions that received insufficient ratings is recommended. The priority order of the dimensions can help researchers and clinicians to focus on the most important dimensions of patient-centeredness. Overall, the model provides a useful framework that can be used in the development of measures, interventions, and medical education curricula, as well as the adoption of a new perspective in health policy.

  20. 基于Delphi的CORBA开发%Developing Based on CORBA in Delphi

    Institute of Scientific and Technical Information of China (English)

    江晓谷

    2003-01-01

    主要介绍了基于Delphi的CORBA开发方法.分析了在Delphi V6中CORBA客户和服务器对象分布式工作机理,并通过一个简单实例说明了基于GUI的CORBA应用程序的开发过程.

  1. A Delphi Study: The Characteristics of Democratic Schools

    Science.gov (United States)

    Korkmaz, H. Eylem; Erden, Münire

    2014-01-01

    The authors aim to identify characteristics of democratic schools. The Delphi technique used in this study is based on attaining a consensus among a group of experts over 3 rounds with 22 experts from 9 countries participating in the first round. By the end of the third round, 339 items referring to democratic school characteristics were…

  2. The Design and Realization of an Internet Courseware Making Software Based on Delphi5%基于Delphi5的Internet课件制作软件的设计与实现

    Institute of Scientific and Technical Information of China (English)

    王晓芸; 张砚秋; 薛小平; 阮永良

    2001-01-01

    Based on Delphi5, We design and realize a Internet courseware making software, which is based on Client/Server mode and Browser/Server mode, and which is easily handled and could extended the HTML's capability with some user-defined marks to satisfy the special acquirements for Net teaching.%基于Delphi5设计并实现了-个Client/Server与Browser/Server结合模式的Internet课件制作软件,其探作简单、灵活,基于HTML并能适应教学内容,自定义标识扩展HTML的表现能力,创造更好的教学效果.

  3. The Delphi Method for Graduate Research

    Science.gov (United States)

    Skulmoski, Gregory J.; Hartman, Francis T.; Krahn, Jennifer

    2007-01-01

    The Delphi method is an attractive method for graduate students completing masters and PhD level research. It is a flexible research technique that has been successfully used in our program at the University of Calgary to explore new concepts within and outside of the information systems body of knowledge. The Delphi method is an iterative process…

  4. The development of an internet-based outpatient cardiac rehabilitation intervention: a Delphi study

    Directory of Open Access Journals (Sweden)

    Hanley Christine

    2010-06-01

    Full Text Available Abstract Background Face-to-face outpatient cardiac rehabilitation (OCR programs are an important and effective component in the management of cardiovascular disease. However, these programs have low participation rates, especially among patients who live rural or remote. Hence, there is a need to develop OCR programs that provide an alternative to face-to-face contact such as by using the Internet. Only a very limited number of Internet-based OCR programs have been developed and evaluated. Therefore, the purpose of this study was to identify issues that are relevant to the development of an Internet-based OCR intervention. Methods A three-round Delphi study among cardiac rehabilitation experts was conducted. In the first round, 43 experts outlined opinions they had on the development of an online ORC platform into an open-ended electronic questionnaire. In the second round, 42 experts completed a structured (five-point scale electronic questionnaire based on first round results, in which they scored items on their relevance. In the third round, the same experts were asked to re-rate the same items after feedback was given about the group median relevance score to establish a level of consensus. Results After the third round, high consensus was reached in 120 of 162 (74% questionnaire items, of which 93 (57% of 162 items also had high relevance according to the experts. The results indicate that experts strongly agreed on desired website content, data obtained from the patient, and level of interaction with patients that should be part of an Internet-based OCR intervention. Conclusion The high rates of consensus and relevance observed among cardiac rehabilitation experts are an indication that they perceived the development and implementation of an Internet-based ORC intervention as feasible, and as a valuable alternative to face-to-face programs. In many ways the experts indicated that an Internet-based ORC program should mimic a traditional

  5. Using a Delphi technique to seek consensus regarding definitions, descriptions and classification of terms related to implicit and explicit forms of motor learning.

    Directory of Open Access Journals (Sweden)

    Melanie Kleynen

    Full Text Available BACKGROUND: Motor learning is central to domains such as sports and rehabilitation; however, often terminologies are insufficiently uniform to allow effective sharing of experience or translation of knowledge. A study using a Delphi technique was conducted to ascertain level of agreement between experts from different motor learning domains (i.e., therapists, coaches, researchers with respect to definitions and descriptions of a fundamental conceptual distinction within motor learning, namely implicit and explicit motor learning. METHODS: A Delphi technique was embedded in multiple rounds of a survey designed to collect and aggregate informed opinions of 49 international respondents with expertise related to motor learning. The survey was administered via an online survey program and accompanied by feedback after each round. Consensus was considered to be reached if ≥70% of the experts agreed on a topic. RESULTS: Consensus was reached with respect to definitions of implicit and explicit motor learning, and seven common primary intervention strategies were identified in the context of implicit and explicit motor learning. Consensus was not reached with respect to whether the strategies promote implicit or explicit forms of learning. DISCUSSION: The definitions and descriptions agreed upon may aid translation and transfer of knowledge between domains in the field of motor learning. Empirical and clinical research is required to confirm the accuracy of the definitions and to explore the feasibility of the strategies that were identified in research, everyday practice and education.

  6. [Delphi-based study on scientificity of organoleptic evaluation for rhubarb commercial specification].

    Science.gov (United States)

    Wang, Jiabo; Zhang, Xueru; Chu, Xiaohui; Huang, Mingjin; Jin, Cheng; Yan, Dan; Xiao, Xiaohe; Liu, Tasi

    2010-10-01

    In this study the reliability and scientificity of organoleptic evaluation for the commercial specification of Chinese medicinal materials (CMM) was investigated with Delphi method, using rhubarb as an example. The consensus panel of panelists being expert in organoleptic evaluation for CMM was cogitatively selected, with high average authority index of 0.81. The average individual repeatability of selected panelists was 85%, while the group repeatability was above 70%. It was found that the career time of the expert had significant influence on the evaluation result (P specification of rhubarb. In conclusion, we firstly demonstrated the organoleptic evaluation is an objective and repeatable approach to judge the commercial specification of CMM; and we recommend Delphi method to do validation and standardization for the conventional experiences of traditional Chinese medicine.

  7. 用Delphi制作播放器%A Player Be Implemented Based on Delphi

    Institute of Scientific and Technical Information of China (English)

    刘世荣

    2016-01-01

    As the high-definition video resources increasingly rich and user demand for high-definition video playback, tradition-al players cannot meet the requirements of the hd video playback. In Windows XP as a development platform, Delphi XE6 as de-velopment tool, using FFOCX control, programming is easy to realize the function of play audio and video files.%随着高清视频资源的日益丰富和用户对高清视频播放的需求,传统的播放器已不能满足高清视频播放的要求。以Windows XP作为开发平台,Delphi XE6为开发工具,采用FFOCX控件,编程实现播放音视频文件的功能是容易的。

  8. [Épico project: Development of educational recommendations using the DELPHI technique on invasive candidiasis in non-neutropenic critically ill adult patients. Grupo Proyecto Épico].

    Science.gov (United States)

    Zaragoza, Rafael; Llinares, Pedro; Maseda, Emilio; Ferrer, Ricard; Rodríguez, Alejandro

    2013-01-01

    Although there has been an improved management of invasive candidiasis in the last decade, controversial issues still remain, especially in the diagnostic and therapeutic approaches. We sought to identify the core clinical knowledge and to achieve high level agreement recommendations required to care for critically ill adult patients with invasive candidiasis. A prospective Spanish survey reaching consensus by the DELPHI technique was made. It was anonymously conducted by electronic mail in a first term to 25 national multidisciplinary experts in invasive fungal infections from five national scientific societies, including intensivists, anesthesiologists, microbiologists, pharmacologists and infectious diseases specialists, who answered to 47 questions prepared by a coordination group after a strict review of the literature in the last five years. The educational objectives spanned five categories, including epidemiology, diagnostic tools, prediction rules, and treatment and de-escalation approaches. The level of agreement achieved among the panel experts in each item should exceed 75% to be selected. In a second term, after extracting recommendations from the selected items, a face to face meeting was performed where more than 80 specialists in a second round were invited to validate the preselected recommendations. In the first term, 20 recommendations were preselected (Epidemiology 4, Scores 3, Diagnostic tools 4, Treatment 6 and De-escalation approaches 3). After the second round, the following 12 were validated: (1) Epidemiology (2 recommendations): think about candidiasis in your Intensive Care Unit (ICU) and do not forget that non-Candida albicans-Candida species also exist. (2) Diagnostic tools (4 recommendations): blood cultures should be performed under suspicion every 2-3 days and, if positive, every 3 days until obtaining the first negative result. Obtain sterile fluid and tissue, if possible (direct examination of the sample is important). Use non

  9. ÉPICO project. Development of educational recommendations using the DELPHI technique on invasive candidiasis in non-neutropenic critically ill adult patients.

    Science.gov (United States)

    Zaragoza, R; Llinares, P; Maseda, E; Ferrer, R; Rodríguez, A

    2013-01-01

    Although there has been an improved management of invasive candidiasis in the last decade, controversial issues still remain, especially in the diagnostic and therapeutic approaches. We sought to identify the core clinical knowledge and to achieve high level agreement recommendations required to care for critically ill adult patients with invasive candidiasis. A prospective Spanish survey reaching consensus by the DELPHI technique was made. It was anonymously conducted by electronic mail in a first term to 25 national multidisciplinary experts in invasive fungal infections from five national scientific societies, including intensivists, anesthesiologists, microbiologists, pharmacologists and infectious diseases specialists, who answered to 47 questions prepared by a coordination group after a strict review of the literature in the last five years. The educational objectives spanned five categories, including epidemiology, diagnostic tools, prediction rules, and treatment and de-escalation approaches. The level of agreement achieved among the panel experts in each item should exceed 75% to be selected. In a second term, after extracting recommendations from the selected items, a face to face meeting was performed where more than 80 specialists in a second round were invited to validate the preselected recommendations. In the first term, 20 recommendations were preselected (Epidemiology 4, Scores 3, Diagnostic tools 4, Treatment 6 and De-escalation approaches 3). After the second round, the following 12 were validated: (1) Epidemiology (2 recommendations): think about candidiasis in your Intensive Care Unit (ICU) and do not forget that non-Candida albicans-Candida species also exist. (2) Diagnostic tools (4 recommendations): blood cultures should be performed under suspicion every 2-3 days and, if positive, every 3 days until obtaining the first negative result. Obtain sterile fluid and tissue, if possible (direct examination of the sample is important). Use non

  10. EPICO 2.0 project. Development of educational therapeutic recommendations using the DELPHI technique on invasive candidiasis in critically ill adult patients in special situations.

    Science.gov (United States)

    Zaragoza, Rafael; Ferrer, Ricard; Maseda, Emilio; Llinares, Pedro; Rodriguez, Alejandro

    2014-01-01

    Although there has been an improved management of invasive candidiasis in the last decade, still controversial issues remain, especially in different therapeutic critical care scenarios. We sought to identify the core clinical knowledge and to achieve high agreement recommendations required to care for critically ill adult patients with invasive candidiasis for antifungal treatment in special situations and different scenarios. Second prospective Spanish survey reaching consensus by the DELPHI technique, conducted anonymously by electronic e-mail in the first phase to 23 national multidisciplinary experts in invasive fungal infections from five national scientific societies including intensivists, anesthesiologists, microbiologists, pharmacologists and infectious disease specialists, answering 30 questions prepared by a coordination group after a strict review of literature in the last five years. The educational objectives spanned four categories, including peritoneal candidiasis, immunocompromised patients, special situations, and organ failures. The agreement among panelists in each item should be higher than 75% to be selected. In a second phase, after extracting recommendations from the selected items, a meeting was held with more than 60 specialists in a second round invited to validate the preselected recommendations. In the first phase, 15 recommendations were preselected (peritoneal candidiasis (3), immunocompromised patients (6), special situations (3), and organ failures (3)). After the second round the following 13 were validated: Peritoneal candidiasis (3): Source control and early adequate antifungal treatment is mandatory; empirical antifungal treatment is recommended in secondary nosocomial peritonitis with Candida spp. colonization risk factors and in tertiary peritonitis. Immunocompromised patients (5): consider hepatotoxicity and interactions before starting antifungal treatment with azoles in transplanted patients; treat candidemia in

  11. Validação de constructo de tecnologia educativa para pacientes mediante aplicação da técnica Delphi Validación de un constructo de tecnología educativa para pacientes mediante la aplicación de la técnica Delphi Construct validation of educational technology for patients through the application of the Delphi technique

    Directory of Open Access Journals (Sweden)

    Cristina Silva Sousa

    2012-01-01

    esbozo, del 10% en cultura, manteniéndose constante el item motivación. CONCLUSIÓN: La técnica Delphi, puede ser una herramienta importante en la construcción y validación de tecnologías educativas.OBJECTIVE: To describe the validation process of an educational technology for patients undergoing orthognathic surgery, through the application of the Delphi technique. METHODS: Participating in the study were ten experts (four maxillofacial surgeons, two nurses, two nutritionists and two speech therapists who indicated the subjects to be covered in the material for the first phase of the Delphi technique. After constructing the material and obtaining the results of the first phase, the second and third phases of this technique were initiated with validation of the pertinence of the information contained in this educational technology. RESULTS: In the second round we obtained at least 90.0% agreement in all categories. In the third, the following improvements were noted: 12% for the content item, 6.7% for language, 12.5% for illustrations, 3.3% for layout, 10% for culture; the motivation item was unchaged. CONCLUSION: The Delphi technique can be an important tool in the construction and validation of educational technologies.

  12. Practical state of health estimation of power batteries based on Delphi method and grey relational grade analysis

    Science.gov (United States)

    Sun, Bingxiang; Jiang, Jiuchun; Zheng, Fangdan; Zhao, Wei; Liaw, Bor Yann; Ruan, Haijun; Han, Zhiqiang; Zhang, Weige

    2015-05-01

    The state of health (SOH) estimation is very critical to battery management system to ensure the safety and reliability of EV battery operation. Here, we used a unique hybrid approach to enable complex SOH estimations. The approach hybridizes the Delphi method known for its simplicity and effectiveness in applying weighting factors for complicated decision-making and the grey relational grade analysis (GRGA) for multi-factor optimization. Six critical factors were used in the consideration for SOH estimation: peak power at 30% state-of-charge (SOC), capacity, the voltage drop at 30% SOC with a C/3 pulse, the temperature rises at the end of discharge and charge at 1C; respectively, and the open circuit voltage at the end of charge after 1-h rest. The weighting of these factors for SOH estimation was scored by the 'experts' in the Delphi method, indicating the influencing power of each factor on SOH. The parameters for these factors expressing the battery state variations are optimized by GRGA. Eight battery cells were used to illustrate the principle and methodology to estimate the SOH by this hybrid approach, and the results were compared with those based on capacity and power capability. The contrast among different SOH estimations is discussed.

  13. Development and application of compact models of packages based on DELPHI methodology

    CERN Document Server

    Parry, J; Shidore, S

    1997-01-01

    The accurate prediction of the temperatures of critical electronic parts at the package- board- and system-level is seriously hampered by the lack of reliable, standardised input data for the characterisation of the thermal $9 behaviour of these parts. The recently completed collaborative European project, DELPHI has been concerned with the creation and experimental validation of thermal models (both detailed and compact) of a range of electronic parts, $9 including mono-chip packages. This paper demonstrates the reliable performance of thermal compact models in a range of applications, by comparison with the detailed models from which they were derived. (31 refs).

  14. [Delphi study to identify the management skills of nursing executives].

    Science.gov (United States)

    Yañez, M R; Avila, J A; Bermudez, M I; De Miguel, I; Bellver, V; Guilabert, M; Mira, J J

    2016-01-01

    To determine and update the skills map for the position of Nurse Administrator in hospitals and Primary Care. An observational, descriptive, cross-sectional study based on a Delphi technique was conducted in hospital and Primary Care settings. Two nominal groups with 15 nurses each were used to define the contents of the questionnaire 0 in the Delphi technique. All nurses registered in the professional associations of Alicante, Castellón and Valencia were invited to participate. The results of the Delphi study was submitted to factor analysis to identify the set of skills and, subsequently, compare them with the offer of post-graduate course in colleges and universities during the 2014-15 academic year. Forty-five competences were extracted during the Nominal groups. In total, 705 nurses replied to the first wave in the Delphi Technique, and 394 in the second (response rate of 56%). Factorial analysis grouped the skills chosen into 10 factors: managing people, conflict management, independent learning, ethics, emotional balance, commitment, self-discipline, continuous improvement, critical-thinking, and innovation. Four skills groups identified in this study (emotional balancing, commitment, self-discipline and courage) were not usually included in the post-graduate courses The nurse administrator skills should be related to relational and ethical behaviour. The training offer of the post-graduate courses must be reoriented. Copyright © 2015 SECA. Published by Elsevier Espana. All rights reserved.

  15. Application methods for identification of delphi bases comprehensive development of human capital

    Directory of Open Access Journals (Sweden)

    Lenka Bartková

    2012-03-01

    present an overview of the issue of work with human capital in an environment of Czech companies with an emphasis on comprehensive development of human capital, not only through education. METHODS: To identify the bases for the comprehensive development of human capital, we chose the Delphi method of research. A group of experts was selected among economists and managers, experts in promoting physical activity, experts in work psychology among academic staff and professional consultants for multinational companies. RESULTS: Conceptual approach to the development of human capital for the company is necessary and beneficial. It is necessary to develop a component according to the individual needs of the job and the employee. On the basis of a single enterprise is desirable individual approach and analysis of the specific needs and preferences of the company and its employees. Effect of the form of benefits is insufficient, positively must use other forms of employee motivation. The Czech company is not space to work with human capital sufficiently exploited. CONCLUSIONS: It must be developed not only knowledge and skills of individuals, but also key skills, physical and mental health staff loyalty to the employer, positive and healthy atmosphere in the company. The starting point for the optimal approach to the devel

  16. Electric and hybrid electric vehicles: A technology assessment based on a two-stage Delphi study

    Energy Technology Data Exchange (ETDEWEB)

    Vyas, A.D.; Ng, H.K.; Santini, D.J.; Anderson, J.L.

    1997-12-01

    To address the uncertainty regarding future costs and operating attributes of electric and hybrid electric vehicles, a two stage, worldwide Delphi study was conducted. Expert opinions on vehicle attributes, current state of the technology, possible advancements, costs, and market penetration potential were sought for the years 2000, 2010, and 2020. Opinions related to such critical components as batteries, electric drive systems, and hybrid vehicle engines, as well as their respective technical and economic viabilities, were also obtained. This report contains descriptions of the survey methodology, analytical approach, and results of the analysis of survey data, together with a summary of other factors that will influence the degree of market success of electric and hybrid electric vehicle technologies. Responses by industry participants, the largest fraction among all the participating groups, are compared with the overall responses. An evaluation of changes between the two Delphi stages is also summarized. An analysis of battery replacement costs for various types is summarized, and variable operating costs for electric and hybrid vehicles are compared with those of conventional vehicles. A market penetration analysis is summarized, in which projected market shares from the survey are compared with predictions of shares on the basis of two market share projection models that use the cost and physical attributes provided by the survey. Finally, projections of market shares beyond the year 2020 are developed by use of constrained logit models of market shares, statistically fitted to the survey data.

  17. 基于Delphi的制图课件设计%Engineering Graphics CAI Design Based on Delphi

    Institute of Scientific and Technical Information of China (English)

    蒋先刚; 钟化兰; 涂晓斌

    2001-01-01

    Introduces programming technologies and methods of EngineeringGraphics CAI design based on Delphi, it focus on system configuration and software methods. It also presents methods and skills of using TTreeView component to construct the CAI'S database.%介绍基于Delphi开发环境下的制图课件的设计技术和实现方法。重点介绍画法几何与工程制图CAI课件系统的构造和软件实现方法,提出了用Delphi中的树状显示控件构造和管理制图CAI系统中的数据库设计方法和技巧。

  18. Use of a Web-based Delphi for identifying critical components of a professional science master's program in biotechnology

    Science.gov (United States)

    Kantz, Jeannine Wells

    The primary purpose of this research was to develop a model for a professional science master's program combining biotechnology and business. The objectives were to identify stakeholder preferences for various dimensions of a professional science master's program combining biotechnology and business and to identify differences in priorities between subgroups. A secondary purpose was to examine user preferences between Web-based and traditional methods of conducting a Delphi study and the panelist's impressions of its usefulness for program development. Prior to the first round, demographic data were collected on panelists regarding their gender, age, years experience in their current field, position title and education levels. Round 1 started with eight open-ended questions designed to investigate (a) learning objectives, (b) internships, (c) thesis vs. non-thesis degrees, (d) program focus (e) possible entry level positions, (f) roles for the industry advisory board, (g) recommended hours of hands-on experience and (h) other issues of importance. The final round ended with three questions to assess the panelists' perception of the usefulness of the Delphi for program development in higher education. Twenty-four panelists started Round 1 and participation in subsequent rounds varied from 17 in Round 2 to 11 in Round 4. Education level varied and included all levels of education in science and business. Issues emerged early in the study regarding development of different program tracks and the program goals, which were clarified in subsequent rounds. Significant differences occurred between industry and academic subgroups for two tracks, six skills designated for tracks, method of evaluating the internship, and entry-level positions appropriate for new graduates. When analyzed by level of confidence (high confidence vs. low confidence), significant differences occurred for (a) the number of semesters of hands-on experience students should have upon graduation, (b

  19. Developing Policy for Integrating Biomedicine and Traditional Chinese Medical Practice Using Focus Groups and the Delphi Technique

    Directory of Open Access Journals (Sweden)

    Vincent C. H. Chung

    2012-01-01

    Full Text Available In Hong Kong, statutory regulation for traditional Chinese medicine (TCM practitioners has been implemented in the past decade. Increasing use of TCM on top of biomedicine (BM services by the population has been followed; but corresponding policy development to integrate their practices has not yet been discussed. Using focus group methodology, we explore policy ideas for integration by collating views from frontline BM (n=50 and TCM clinicians (n=50. Qualitative data were analyzed under the guidance of structuration model of collaboration, a theoretical model for understanding interprofessional collaboration. From focus group findings we generated 28 possible approaches, and subsequently their acceptability was assessed by a two round Delphi survey amongst BM and TCM policy stakeholders (n=12. Consensus was reached only on 13 statements. Stakeholders agreed that clinicians from both paradigms should share common goals of providing patient-centered care, promoting the development of protocols for shared care and information exchange, as well as strengthening interprofessional connectivity and leadership for integration. On the other hand, attitudes amongst policy stakeholders were split on the possibility of fostering trust and mutual learning, as well as on enhancing innovation and governmental support. Future policy initiatives should focus on these controversial areas.

  20. An expert-based approach to forest road network planning by combining Delphi and spatial multi-criteria evaluation.

    Science.gov (United States)

    Hayati, Elyas; Majnounian, Baris; Abdi, Ehsan; Sessions, John; Makhdoum, Majid

    2013-02-01

    Changes in forest landscapes resulting from road construction have increased remarkably in the last few years. On the other hand, the sustainable management of forest resources can only be achieved through a well-organized road network. In order to minimize the environmental impacts of forest roads, forest road managers must design the road network efficiently and environmentally as well. Efficient planning methodologies can assist forest road managers in considering the technical, economic, and environmental factors that affect forest road planning. This paper describes a three-stage methodology using the Delphi method for selecting the important criteria, the Analytic Hierarchy Process for obtaining the relative importance of the criteria, and finally, a spatial multi-criteria evaluation in a geographic information system (GIS) environment for identifying the lowest-impact road network alternative. Results of the Delphi method revealed that ground slope, lithology, distance from stream network, distance from faults, landslide susceptibility, erosion susceptibility, geology, and soil texture are the most important criteria for forest road planning in the study area. The suitability map for road planning was then obtained by combining the fuzzy map layers of these criteria with respect to their weights. Nine road network alternatives were designed using PEGGER, an ArcView GIS extension, and finally, their values were extracted from the suitability map. Results showed that the methodology was useful for identifying road that met environmental and cost considerations. Based on this work, we suggest future work in forest road planning using multi-criteria evaluation and decision making be considered in other regions and that the road planning criteria identified in this study may be useful.

  1. Using and reporting the Delphi method for selecting healthcare quality indicators: a systematic review.

    Directory of Open Access Journals (Sweden)

    Rym Boulkedid

    Full Text Available OBJECTIVE: Delphi technique is a structured process commonly used to developed healthcare quality indicators, but there is a little recommendation for researchers who wish to use it. This study aimed 1 to describe reporting of the Delphi method to develop quality indicators, 2 to discuss specific methodological skills for quality indicators selection 3 to give guidance about this practice. METHODOLOGY AND MAIN FINDING: Three electronic data bases were searched over a 30 years period (1978-2009. All articles that used the Delphi method to select quality indicators were identified. A standardized data extraction form was developed. Four domains (questionnaire preparation, expert panel, progress of the survey and Delphi results were assessed. Of 80 included studies, quality of reporting varied significantly between items (9% for year's number of experience of the experts to 98% for the type of Delphi used. Reporting of methodological aspects needed to evaluate the reliability of the survey was insufficient: only 39% (31/80 of studies reported response rates for all rounds, 60% (48/80 that feedback was given between rounds, 77% (62/80 the method used to achieve consensus and 57% (48/80 listed quality indicators selected at the end of the survey. A modified Delphi procedure was used in 49/78 (63% with a physical meeting of the panel members, usually between Delphi rounds. Median number of panel members was 17(Q1:11; Q3:31. In 40/70 (57% studies, the panel included multiple stakeholders, who were healthcare professionals in 95% (38/40 of cases. Among 75 studies describing criteria to select quality indicators, 28 (37% used validity and 17(23% feasibility. CONCLUSION: The use and reporting of the Delphi method for quality indicators selection need to be improved. We provide some guidance to the investigators to improve the using and reporting of the method in future surveys.

  2. Delphi应用程序菜单格式的改进%An Improvement of Delphi Applied Program's Menu Style

    Institute of Scientific and Technical Information of China (English)

    孙冀侠; 周立志; 何丽宏

    2001-01-01

    In this paper,a technique which gives a main menu style of Windows system and Delphi system is described under the development enviroment of Delphi4.0.%介绍一种在Delphi4.0环境中开发类Windows系统及Delphi4.0主菜单风格的菜单技术.

  3. Consensus on the Definition of Advanced Parkinson's Disease: A Neurologists-Based Delphi Study (CEPA Study)

    Science.gov (United States)

    Kulisevsky, Jaime; Tolosa, Eduardo S.

    2017-01-01

    To date, no consensus exists on the key factors for diagnosing advanced Parkinson disease (APD). To obtain consensus on the definition of APD, we performed a prospective, multicenter, Spanish nationwide, 3-round Delphi study (CEPA study). An ad hoc questionnaire was designed with 33 questions concerning the relevance of several clinical features for APD diagnosis. In the first-round, 240 neurologists of the Spanish Movement Disorders Group participated in the study. The results obtained were incorporated into the questionnaire and both, results and questionnaire, were sent out to and fulfilled by 26 experts in Movement Disorders. Review of results from the second-round led to a classification of symptoms as indicative of “definitive,” “probable,” and “possible” APD. This classification was confirmed by 149 previous participating neurologists in a third-round, where 92% completely or very much agreed with the classification. Definitive symptoms of APD included disability requiring help for the activities of daily living, presence of motor fluctuations with limitations to perform basic activities of daily living without help, severe dysphagia, recurrent falls, and dementia. These results will help neurologists to identify some key factors in APD diagnosis, thus allowing users to categorize the patients for a homogeneous recognition of this condition. PMID:28239501

  4. Delphi Accounts Receivable Module -

    Data.gov (United States)

    Department of Transportation — Delphi accounts receivable module contains the following data elements, but are not limited to customer information, cash receipts, line of accounting details, bill...

  5. DELPHI time projection chamber

    CERN Multimedia

    1989-01-01

    The time projection chamber is inserted inside the central detector of the DELPHI experiment. Gas is ionised in the chamber as a charged particle passes through, producing an electric signal from which the path of the particle can be found. DELPHI, which ran from 1989 to 2000 on the LEP accelerator, was primarily concerned with particle identification.

  6. DELPHI on the move

    CERN Multimedia

    Maximilien Brice

    2002-01-01

    DELPHI (DEtector for Lepton, Photon and Hadron Identification) was one of four experiments at CERN's Large Electron-Positron collider (LEP). Following LEP's decommissioning, the DELPHI detector has been moved within the cavern at Point 8, and now awaits permanent display.

  7. Ethical Delphi Manual

    NARCIS (Netherlands)

    Millar, K.; Tomkins, S.; Thorstensen, E.; Mepham, B.; Kaiser, M.

    2006-01-01

    An ethical Delphi is an iterative participatory process between experts for exchanging views and arguments on ethical issues. The method is structured around the notion of a virtual committee where the exchange of ideas is conducted remotely through a series of opinion exchanges. The ethical Delphi

  8. Ethical Delphi Manual

    NARCIS (Netherlands)

    Millar, K.; Tomkins, S.; Thorstensen, E.; Mepham, B.; Kaiser, M.

    2006-01-01

    An ethical Delphi is an iterative participatory process between experts for exchanging views and arguments on ethical issues. The method is structured around the notion of a virtual committee where the exchange of ideas is conducted remotely through a series of opinion exchanges. The ethical Delphi

  9. 基于Delphi的串行通信监控程序设计%The design on monitor and control program of serial communication based on Delphi

    Institute of Scientific and Technical Information of China (English)

    章吉刚

    2011-01-01

    The paper mainly introduces the monitor and control program design of serial communication based on Delphi for user-defined serial communication protocol. Through analyzing serial communication method with the ActiveX SPcomm in Delphi, it expatiates a way of serial communication software which provide a realized communication way for autocontrol and monitoring system.%主要介绍了一种在自定义串行通信协议下的基于Delphi的串行通信监控程序设计.通过分析使用Delphi控件SPcomm进行串行通信的方法,阐述了串行通信软件的实现方法,为自动控制和监视系统的通信提供了一种实现的方法.

  10. Delphi in Criminal Justice Policy: A Case Study on Judgmental Forecasting

    Science.gov (United States)

    Loyens, Kim; Maesschalck, Jeroen; Bouckaert, Geert

    2011-01-01

    This article provides an in-depth case study analysis of a pilot project organized by the section "Strategic Analysis" of the Belgian Federal Police. Using the Delphi method, which is a judgmental forecasting technique, a panel of experts was questioned about future developments of crime, based on their expertise in criminal or social…

  11. Delphi in Criminal Justice Policy: A Case Study on Judgmental Forecasting

    NARCIS (Netherlands)

    Loyens, Kim; Maesschalck, Jeroen; Bouckaert, Geert

    2011-01-01

    This article provides an in-depth case study analysis of a pilot project organized by the section “Strategic Analysis” of the Belgian Federal Police. Using the Delphi method, which is a judgmental forecasting technique, a panel of experts was questioned about future developments of crime, based on t

  12. Current Developments in Education in Mexico and Trends for the 1980s: A Modified Delphi Project.

    Science.gov (United States)

    Sanders, Stanley G.

    Twenty-nine professional educators at the Universidad Autonoma de Guadalajara and post-graduate students of educational administration participated in a study to identify trends in education based on change in the society and the environment. Researchers used a modification of Delphi Technique, an intuitive method for organizing and sharing the…

  13. Personal Learning Environments and University Teacher Roles Explored Using Delphi

    Science.gov (United States)

    Shaikh, Zaffar Ahmed; Khoja, Shakeel Ahmed

    2014-01-01

    This paper presents the results of research using an online Delphi method, which aimed to explore university teacher roles and readiness for learner-centred pedagogy, driven by personal learning environments (PLEs). Using a modified Policy Delphi technique, a group of researchers worked with 34 international experts who are university teachers by…

  14. Personal Learning Environments and University Teacher Roles Explored Using Delphi

    Science.gov (United States)

    Shaikh, Zaffar Ahmed; Khoja, Shakeel Ahmed

    2014-01-01

    This paper presents the results of research using an online Delphi method, which aimed to explore university teacher roles and readiness for learner-centred pedagogy, driven by personal learning environments (PLEs). Using a modified Policy Delphi technique, a group of researchers worked with 34 international experts who are university teachers by…

  15. Design and Implementation of Hospital Management Information System Based on Delphi%基于Delphi的医院管理信息系统设计与实现

    Institute of Scientific and Technical Information of China (English)

    郭绍永; 白东玲

    2011-01-01

    针对目前中小医院普遍存在的手工操作模式造成医生工作效率低下、病人信息查询难、药品难管理等问题,开发了基于Delphi的医院管理信息系统.介绍了Delphi的优越性和系统的总体功能及数据库设计方法,并以医院管理信息系统药品查询模块为例,分析了采用Delphi为开发工具进行系统开发的流程.%A hospital manage information system is developed based on Delphi,in view of the problems exist in the small and medium-sized hospitals,such as doctors inefficient,patient information searching and medicines managing difficult under manual operation mode.The advantages of Delphi,the overall function of the system and the design of database are described.And taking the medicine searching module of the hospital management information system as an example,system development processes is expounded with Delphi as development tool.

  16. Promising Behavior Change Techniques in a Multicomponent Intervention to Reduce Concerns about Falls in Old Age: A Delphi Study

    Science.gov (United States)

    Vestjens, Lotte; Kempen, Gertrudis I. J. M.; Crutzen, Rik; Kok, Gerjo; Zijlstra, G. A. Rixt

    2015-01-01

    Complex behavior change interventions need evidence regarding the effectiveness of individual components to understand how these interventions work. The objective of this study was to identify the least and most promising behavior change techniques (BCTs) within the Dutch intervention "A Matter of Balance" (AMB-NL) aimed at concerns…

  17. 基于Delphi 5核心技术的分布式Web网站实现技术%The Methods of Developing Distributed Web based on the Technologies of Delphi 5

    Institute of Scientific and Technical Information of China (English)

    王绍恒; 王志刚

    2002-01-01

    比较了几种主要的Web开发技术,介绍一种基于Delphi 5核心技术支持的分布式Web网站的开发方法,并给出了运用Delphi 5的Web核心技术开发税法查询Web系统的一些细节.

  18. Development of a scale for the evaluation of patients' rights prerequisites at educational hospitals in Iran: a study using the Delphi technique.

    Science.gov (United States)

    Aazami, Sanaz; Mozafari, Mosayeb

    2015-01-01

    The patients' rights status is one of the essential elements in defining norms related to the concept of clinical governance system. In addition, the patients' rights status is an important index for quality of care offered in the health care system. However, the lack of a coherent instrument makes it difficult to evaluate patients' rights status in hospitals and clinics. The aim of this study was to develop an instrument for the evaluation of patients' rights prerequisites at educational hospitals in Iran. This study was conducted using the modified Delphi technique. In this study, 36 experts in the fields of law, medicine, and professional ethics were participated. The panel of experts participated in 3 rounds. First, experts were asked to judge some pre-identified items, and then, excluded items were judged again in the second round. At the end of the third round, all of the agreed items were included in the final list to form an evaluative scale on practice of patients' rights. Experts were asked to judge a total 171 items in 3 rounds. Around 31% (n = 53) of items obtained the panel's approval to be included in the final version of the scale. The experts' opinions were collected using face-to-face interviews and electronic email during a 6-month period of data collection from October 2013 to February 2014. This study developed a 53-item scale for evaluation of patients' rights prerequisites in educational hospitals in Iran. This scale was developed in 7 areas of commitments including university education, research, supervision, process management, physical structure, organizational policy, and human resources management. This study developed an evaluative scale to assess the practice of patients' rights in educational hospitals. The items in the final version of this scale were obtained from a consensus of experts and the instrument can be used to evaluate the context and prerequisites for practice of patients' rights in Iranian educational hospitals.

  19. Delphi General Ledger -

    Data.gov (United States)

    Department of Transportation — Delphi general ledger contains the following data elements, but is not limited to the United States Standard General Ledger (USSGL) chart of accounts, stores actual,...

  20. Selection Input Output by Restriction Using DEA Models Based on a Fuzzy Delphi Approach and Expert Information

    Science.gov (United States)

    Arsad, Roslah; Nasir Abdullah, Mohammad; Alias, Suriana; Isa, Zaidi

    2017-09-01

    Stock evaluation has always been an interesting problem for investors. In this paper, a comparison regarding the efficiency stocks of listed companies in Bursa Malaysia were made through the application of estimation method of Data Envelopment Analysis (DEA). One of the interesting research subjects in DEA is the selection of appropriate input and output parameter. In this study, DEA was used to measure efficiency of stocks of listed companies in Bursa Malaysia in terms of the financial ratio to evaluate performance of stocks. Based on previous studies and Fuzzy Delphi Method (FDM), the most important financial ratio was selected. The results indicated that return on equity, return on assets, net profit margin, operating profit margin, earnings per share, price to earnings and debt to equity were the most important ratios. Using expert information, all the parameter were clarified as inputs and outputs. The main objectives were to identify most critical financial ratio, clarify them based on expert information and compute the relative efficiency scores of stocks as well as rank them in the construction industry and material completely. The methods of analysis using Alirezaee and Afsharian’s model were employed in this study, where the originality of Charnes, Cooper and Rhodes (CCR) with the assumption of Constant Return to Scale (CSR) still holds. This method of ranking relative efficiency of decision making units (DMUs) was value-added by the Balance Index. The interested data was made for year 2015 and the population of the research includes accepted companies in stock markets in the construction industry and material (63 companies). According to the ranking, the proposed model can rank completely for 63 companies using selected financial ratio.

  1. 基于注册表的DELPHI数据库应用程序发布%Distributing of Delphi DataBase Application Based on Registry

    Institute of Scientific and Technical Information of China (English)

    陈明; 宋宝卫

    2001-01-01

    In this paper, the authors propose a method which distributes delphi-based database application. Its feature is not using traditional method of installing application and BDE drivers. While application is being installed,this method saves BDE system configuration information through modifying registry and copies BDE configuration files.%提出了一种发布DELPHI数据库应用程序的方法。其特点是完全摆脱传统的安装应用程序和BDE驱动程序,在安装应用程序时通过修改注册表来写入BDE的系统配置信息和复制BDE的配置文件。

  2. 基于Delphi语言开发图书索书号查询系统%Development of Book Call Number Query System Based on Delphi Language

    Institute of Scientific and Technical Information of China (English)

    陈作新

    2012-01-01

    Based on Delphi language, this paper establishes finding system of books call number and presents some example codes. The operation of this system is easy, convenient and all books call number can be find under certain condi- tions quickly.%基于Delphi语言构造了图书索书号查询系统,介绍了部分实例代码。该系统操作方便,能够快速查找所需条件下所有图书的索书号。

  3. End-view of the DELPHI detector

    CERN Multimedia

    1996-01-01

    End-view of the 10-m diameter DELPHI detector at CERN's LEP electron-positron collider from 1989 to 2000. Its concentric modules, including a pioneer large-scale application of the Ring Imaging Cherenkov technique to differentiate between all the various secondary particles, ensure high precision and 'granularity'.

  4. Consensus definition of fetal growth restriction : a Delphi procedure

    NARCIS (Netherlands)

    Gordijn, S. J.; Beune, I. M.; Thilaganathan, B.; Papageorghiou, A.; Baschat, A. A.; Baker, P. N.; Silver, R. M.; Wynia, K.; Ganzevoort, W.

    2016-01-01

    Objective To determine, by expert consensus, a definition for early and late fetal growth restriction (FGR) through a Delphi procedure. Method A Delphi survey was conducted among an international panel of experts on FGR. Panel members were provided with 18 literature-based parameters for defining FG

  5. [What is the Delphi method? Strengths and shortcomings].

    Science.gov (United States)

    Ciałkowska, Magdalena; Adamowski, Tomasz; Piotrowski, Patryk; Kiejna, Andrzej

    2008-01-01

    This article provides a condensed discussion and explanation of the Delphi method. This technique is used for problem solving and decision making. The Delphi Method was originally developed during the cold war by the U.S. Intelligence think tank, the RAND Corporation, Santa Monica, California in the 1950's and 1960's. It was designed for use on complex or ambiguous problems that exceed the capabilities of a single person. Most researchers make distinctions between the conventional Delphi and the policy Delphi. The last decades have seen increasing interest in the use of Delphi in a wide range of health-care applications. The Delphi method has been applied in a wide range of European Commission funded research projects, e.g. in EUNOMIA and DEMoB.inc projects. The Delphi method is characterized by the following features: anonymity of responses from panel experts, asynchronicity, controlled feedback and statistical description of responses. The objective of most Delphi applications is the reliable and creative exploration of problems or the production of suitable information for decision making.

  6. Highly efficient and exact method for parallelization of grid-based algorithms and its implementation in DelPhi

    Science.gov (United States)

    Li, Chuan; Li, Lin; Zhang, Jie; Alexov, Emil

    2012-01-01

    The Gauss-Seidel method is a standard iterative numerical method widely used to solve a system of equations and, in general, is more efficient comparing to other iterative methods, such as the Jacobi method. However, standard implementation of the Gauss-Seidel method restricts its utilization in parallel computing due to its requirement of using updated neighboring values (i.e., in current iteration) as soon as they are available. Here we report an efficient and exact (not requiring assumptions) method to parallelize iterations and to reduce the computational time as a linear/nearly linear function of the number of CPUs. In contrast to other existing solutions, our method does not require any assumptions and is equally applicable for solving linear and nonlinear equations. This approach is implemented in the DelPhi program, which is a finite difference Poisson-Boltzmann equation solver to model electrostatics in molecular biology. This development makes the iterative procedure on obtaining the electrostatic potential distribution in the parallelized DelPhi several folds faster than that in the serial code. Further we demonstrate the advantages of the new parallelized DelPhi by computing the electrostatic potential and the corresponding energies of large supramolecular structures. PMID:22674480

  7. Highly efficient and exact method for parallelization of grid-based algorithms and its implementation in DelPhi.

    Science.gov (United States)

    Li, Chuan; Li, Lin; Zhang, Jie; Alexov, Emil

    2012-09-15

    The Gauss-Seidel (GS) method is a standard iterative numerical method widely used to solve a system of equations and, in general, is more efficient comparing to other iterative methods, such as the Jacobi method. However, standard implementation of the GS method restricts its utilization in parallel computing due to its requirement of using updated neighboring values (i.e., in current iteration) as soon as they are available. Here, we report an efficient and exact (not requiring assumptions) method to parallelize iterations and to reduce the computational time as a linear/nearly linear function of the number of processes or computing units. In contrast to other existing solutions, our method does not require any assumptions and is equally applicable for solving linear and nonlinear equations. This approach is implemented in the DelPhi program, which is a finite difference Poisson-Boltzmann equation solver to model electrostatics in molecular biology. This development makes the iterative procedure on obtaining the electrostatic potential distribution in the parallelized DelPhi several folds faster than that in the serial code. Further, we demonstrate the advantages of the new parallelized DelPhi by computing the electrostatic potential and the corresponding energies of large supramolecular structures.

  8. Identifying the features of an exercise addiction: A Delphi study.

    Science.gov (United States)

    Macfarlane, Lucy; Owens, Glynn; Cruz, Borja Del Pozo

    2016-09-01

    Objectives There remains limited consensus regarding the definition and conceptual basis of exercise addiction. An understanding of the factors motivating maintenance of addictive exercise behavior is important for appropriately targeting intervention. The aims of this study were twofold: first, to establish consensus on features of an exercise addiction using Delphi methodology and second, to identify whether these features are congruous with a conceptual model of exercise addiction adapted from the Work Craving Model. Methods A three-round Delphi process explored the views of participants regarding the features of an exercise addiction. The participants were selected from sport and exercise relevant domains, including physicians, physiotherapists, coaches, trainers, and athletes. Suggestions meeting consensus were considered with regard to the proposed conceptual model. Results and discussion Sixty-three items reached consensus. There was concordance of opinion that exercising excessively is an addiction, and therefore it was appropriate to consider the suggestions in light of the addiction-based conceptual model. Statements reaching consensus were consistent with all three components of the model: learned (negative perfectionism), behavioral (obsessive-compulsive drive), and hedonic (self-worth compensation and reduction of negative affect and withdrawal). Conclusions Delphi methodology allowed consensus to be reached regarding the features of an exercise addiction, and these features were consistent with our hypothesized conceptual model of exercise addiction. This study is the first to have applied Delphi methodology to the exercise addiction field, and therefore introduces a novel approach to exercise addiction research that can be used as a template to stimulate future examination using this technique.

  9. The Delphi Method: An Approach for Facilitating Evidence Based Practice in Athletic Training

    Science.gov (United States)

    Sandrey, Michelle A.; Bulger, Sean M.

    2008-01-01

    Objective: The growing importance of evidence based practice in athletic training is necessitating academics and clinicians to be able to make judgments about the quality or lack of the body of research evidence and peer-reviewed standards pertaining to clinical questions. To assist in the judgment process, consensus methods, namely brainstorming,…

  10. The brand, culture & stakeholder-based brand management phenomenon: an international Delphi study

    OpenAIRE

    Wilson, Jonathan

    2012-01-01

    This thesis was submitted for the degree of Docter of Philosophy and awarded by Brunel University. Most recently in academic literature, over the past decade, it has been observed that the cultural approach to brand management represents a new school of thought. This has emerged from relational and community based brand perspectives: which chart the rising role, significance and influence in brand management of connected and savvy consumers. Furthermore, the researcher has identified that ...

  11. 基于Delhpi平台的数据库程序设计研究%Research on the Database Programming Based on Delphi Platform

    Institute of Scientific and Technical Information of China (English)

    鲍海燕

    2011-01-01

    数据库技术是当今信息社会的重要基础技术之一,在众多的数据库开发工具当中,Delphi尤为突出,它适应于多种数据库结构,具有高效率的数据库管理系统和最新的数据分析手段并且提供大量的企业组件。介绍了基于Delphi平台的数据库程序设计的原理,各组件功能应用以及数据库的连接方法,通过测试程序对比了各个数据库连接方法的访问时间,得出DBExpress方法优于BDE及ADO,大大提高了Delphi程序设计中数据库存取和访问的效率,总结了Delphi数据库开发的步骤,便于使用者学习和应用。%Database technology is one of the most important fundamental technologies in the information society.Among many of the database development tools,Delphi is particularly prominent.It performs highly efficient database management system and the latest data analysis method and provides a lot of enterprise components,which adapts to a variety of database structures.Database technology introduces the function application of each parts,the database connection method and the principle based on Delphi platform database program design.By comparing the visiting time of each database connection method after testing program,we know that DBExpress method is better than BDE and ADO,which greatly improves the efficiency of the Delphi programming database access and visiting.The steps of the Delphi database development is summarized to facilitate the users' study and application.

  12. A Delphi-Based Framework for systems architecting of in-orbit exploration infrastructure for human exploration beyond Low Earth Orbit

    Science.gov (United States)

    Aliakbargolkar, Alessandro; Crawley, Edward F.

    2014-01-01

    The current debate in the U.S. Human Spaceflight Program focuses on the development of the next generation of man-rated heavy lift launch vehicles. While launch vehicle systems are of critical importance for future exploration, a comprehensive analysis of the entire exploration infrastructure is required to avoid costly pitfalls at early stages of the design process. This paper addresses this need by presenting a Delphi-Based Systems Architecting Framework for integrated architectural analysis of future in-orbit infrastructure for human space exploration beyond Low Earth Orbit. The paper is structured in two parts. The first part consists of an expert elicitation study to identify objectives for the in-space transportation infrastructure. The study was conducted between November 2011 and January 2012 with 15 senior experts involved in human spaceflight in the United States and Europe. The elicitation study included the formation of three expert panels representing exploration, science, and policy stakeholders engaged in a 3-round Delphi study. The rationale behind the Delphi approach, as imported from social science research, is discussed. Finally, a novel version of the Delphi method is presented and applied to technical decision-making and systems architecting in the context of human space exploration. The second part of the paper describes a tradespace exploration study of in-orbit infrastructure coupled with a requirements definition exercise informed by expert elicitation. The uncertainties associated with technical requirements and stakeholder goals are explicitly considered in the analysis. The outcome of the expert elicitation process portrays an integrated view of perceived stakeholder needs within the human spaceflight community. Needs are subsequently converted into requirements and coupled to the system architectures of interest to analyze the correlation between exploration, science, and policy goals. Pareto analysis is used to identify architectures

  13. An Analysis of Factors that Inhibit Business Use of User-Centered Design Principles: A Delphi Study

    Science.gov (United States)

    Hilton, Tod M.

    2010-01-01

    The use of user-centered design (UCD) principles has a positive impact on the use of web-based interactive systems in customer-centric organizations. User-centered design methodologies are not widely adopted in organizations due to intraorganizational factors. A qualitative study using a modified Delphi technique was used to identify the factors…

  14. Identification and Prioritization of Security Obstacles in Rural Tourism Development by using Delphi Technique (Research Area: Chehar-Mahal Va Bakhtiary

    Directory of Open Access Journals (Sweden)

    Mehdi Karami Dehkordi

    2013-01-01

    , including people, government, police, etc. play important roles in producing and promoting feeling of security. One of the main foci of tourism destination is target villages in any region. Therefore, paying attention to the security of these villages is one of the most important elements in developing tourism in Iran, which is one of the 10 top countries in terms of historical and cultural heritage, and one of the 5 top countries in terms of eco-tourism and ecological diversity, but unfortunately these potentials have not been used in a proper way to develop the country’s economy and welfare. Materials & MethodsThis research has been done by Delphi technique, the purpose of which is to recognize the real security obstacles in development of tourism in Chahar Mahal va Bakhtiari province. To recognize certain and near obstacles Delphi technique was used in 4 stages. To access the reliable results, research population was chosen from individuals who deal with tourism issues and are familiar with problems and solutions in this sector. The population included staff of the province’s Trip Facilities Committee (the governor, mayor, etc. or their agents and experts in the field of tourism industry. Sampling method was purposeful sampling and was done by snowball sampling technique. In order to reach theoretical saturation, we interviewed 25 individuals as officials and/or experts in the area of tourism in Chahar Mahal va Bakhtiari province. In order to gathering data for the research we used a questionnaire in 4 stages. At the first stage, an open-ended question asked respondents about obstacles in the way of providing security in tourism industry. After receiving multiple answers, combining and eliminating similar questions, a questionnaire was given to the very same experts including 10 questions, asking them to rank security problems in a Likert scale. At the next stage, after analyzing the results of the second round, the questionnaire was corrected by the experts' views

  15. DELPHI: First W particles

    CERN Multimedia

    1996-01-01

    This track is an example of real data collected from the DELPHI detector on the Large Electron-Positron (LEP) collider at CERN, which ran between 1989 and 2000. These are the first pair of W particles produced at LEP2, the high energy upgrade of LEP that took place in 1996. Both Ws decay into a quark-antiquark pair, which are each seen as one of the four jets of hadrons in the detector.

  16. DELPHI: Higgs candidate

    CERN Multimedia

    2001-01-01

    This track is an example of real data collected from the DELPHI detector on the Large Electron-Positron (LEP) collider at CERN, which ran between 1989 and 2000. Its topology is compatible with what is expected from the associated production of a Z boson and Higgs boson of mass 113 GeV that each decay into two jets. A different pairing of the jets could lead to an interpretation compatible with the production of two Z bosons.

  17. Usage of inhalation devices in asthma and chronic obstructive pulmonary disease: a Delphi consensus statement.

    OpenAIRE

    Ninane, Vincent; Brusselle, Guy G.; Louis, Renaud; Dupont, Lieven; Liistro, Giuseppe; De Backer,Wilfried; Schlesser, Marc; Vincken, Walter

    2014-01-01

    OBJECTIVES: The study aimed to assess usage of inhalation devices in asthma and chronic obstructive pulmonary disease (COPD). METHODS: In this two-round Delphi survey, 50 experts in asthma and COPD completed a 13-item, Internet-based, self-administered questionnaire about choice of inhalation device, training and monitoring of inhalation techniques, the interchangeability and the role of costs in the selection of inhalation devices. For each item, the median (central tendency) and interquarti...

  18. 基于Delphi与MSCOMM的串口通信程序设计%Design of Serial Communication Program Based on Delphi and MSCOMM

    Institute of Scientific and Technical Information of China (English)

    柴锁柱; 柴华

    2015-01-01

    讨论在Delphi开发环境下,使用MSCOMM控件开发Windows串行通信程序的方法,分析了MSCOMM的常用属性和事件,总结了用MSCOMM控件开发Windows串行通信程序的主要步骤和编程要点。%This paper described Windows programming method of serial communication based on MSCOMM ActiveX in Delphi development environment, and then analyzed the common attributes and events of MSCOMM ActiveX, and finally summarized the main programming steps and key points of Windows serial communication using MSCOMM ActiveX.

  19. European neonatal intensive care nursing research priorities: An e-delphi study

    NARCIS (Netherlands)

    J.M. Wielenga (Joke); L.N. Tume (Lyvonne); J.M. Latour (Jos); A. van den Hoogen (Agnes)

    2015-01-01

    textabstractObjective This study aimed to identify and prioritise neonatal intensive care nursing research topics across Europe using an e-Delphi technique.Design An e-Delphi technique with three questionnaire rounds was performed. Qualitative responses of round one were analysed by content analysis

  20. A Delphi Study on Staff Bereavement Training in the Intellectual and Developmental Disabilities Field

    Science.gov (United States)

    Gray, Jennifer A.; Truesdale, Jesslyn

    2015-01-01

    The Delphi technique was used to obtain expert panel consensus to prioritize content areas and delivery methods for developing staff grief and bereavement curriculum training in the intellectual and developmental disabilities (IDD) field. The Delphi technique was conducted with a panel of 18 experts from formal and informal disability caregiving,…

  1. Developments on jet reconstruction by DELPHI

    CERN Document Server

    Kiskinen, A

    2002-01-01

    The most relevant techniques used by DELPHI to identify jets in multihadronic final states are reviewed. The performance of jet reconstruction algorithms is analysed together with the additional use of energy and momentum conservation in order to allow for a precise reconstruction of the event kinematics. Also jet flavour tagging methods are summarised. Applications in some analyses like searches for new particles such as Higgs bosons, W mass physics and QCD studies are presented. (9 refs).

  2. Construction of the Chinese cancer-related fatigue assessment scale by using Delphi technique%运用Delphi法构建中国癌因性疲乏评估量表

    Institute of Scientific and Technical Information of China (English)

    李艳; 袁长蓉

    2009-01-01

    目的 应用Delphi法构建中国的癌因性疲乏评估工具.方法 选择咨询专家、形成专家咨询表,进行2轮专家咨询并分析咨询结果.结果 通过2轮咨询确立中国癌因性疲乏评估量表的结构和内容:躯体疲乏8个条目、精神疲乏5个条目、情绪状态7个条目.结论 Delphi法所确立的中国癌因性疲乏评估量表为准确地评估中国肿瘤患者的疲乏,提出针对性的护理干预措施贡献研究工具.%Objective To construct the Chinese cancer-related fatigue assessment tool by using Delphi technique.Methods A certain number of expels were chosen for consulting to form a consuiting scale.Two-round consultations were conducted and the results were analyzed.Results The Chinese cancer-related fatigue assessment scale was formed after 2-round consultation,including 3 dimensions and 20 items,which were:8 items for the physical fatigue,5 items for mental fatigue,7 items for emotional condition.Conclusions The Chinese cancer-related fatigue assessment scale formed by Delphi technique provides a research tool to evaluate fatigue of Chinese cancer patients accurately and presents targeted nursing interventions.

  3. 基于Delphi4.0实现N/Tier体系结构的学生学分管理系统%Developing of the Students Credit Hour Information System Based on Delphi4.0

    Institute of Scientific and Technical Information of China (English)

    张超; 宗容; 蔡光卉

    2000-01-01

    基于Delphi4.0建立N/Tier体系结构的学生学分管理系统的基础上,详细分析了N/Tier体系结构的具体形式及其关键技术,并探讨了在N/Tier体系结构下如何提高MIS系统的运行效率、可维护性、可扩展性等问题.

  4. Core Competencies in Geriatric Dentistry Fellowship Programs: a Delphi Study.

    Science.gov (United States)

    Hogue, Christie M; Andrade, Allen D; Ruiz, Jorge G; Gibson, Gretchen

    2016-07-01

    The healthcare workforce is challenged with preparing for the increasing number of older persons and complexities of their healthcare needs. Fellowship trained geriatric dentists are charged with the task of addressing the dental needs of this vastly growing cohort.The purpose of this study is to formulate a set of competencies for Geriatric Dental Fellowship Training Programs. The Delphi technique-a series of three rounds of anonymous questionnaires to obtain the opinions of experts without bringing them together. In Round 1, we proposed 45 competencies based on findings in previous literature. In Round 2, there were 19 respondents whose edits narrowed our list to 39 competencies proposed by the participants. In Round 3, based on group consensus we formulated a final list of 42 competencies. Utilizing the Delphi process, a panel of geriatric dental experts identified a set of core competencies for curriculums in dental fellowship programs. Published 2016. This article is a U.S. Government work and is in the public domain in the USA.

  5. Identification of Response Options to Artisanal and Small-Scale Gold Mining (ASGM) in Ghana via the Delphi Process

    Science.gov (United States)

    Basu, Avik; Phipps, Sean; Long, Rachel; Essegbey, George; Basu, Niladri

    2015-01-01

    The Delphi technique is a means of facilitating discussion among experts in order to develop consensus, and can be used for policy formulation. This article describes a modified Delphi approach in which 27 multi-disciplinary academics and 22 stakeholders from Ghana and North America were polled about ways to address negative effects of small-scale gold mining (ASGM) in Ghana. In early 2014, the academics, working in disciplinary groups, synthesized 17 response options based on data aggregated during an Integrated Assessment of ASGM in Ghana. The researchers participated in two rounds of Delphi polling in March and April 2014, during which 17 options were condensed into 12. Response options were rated via a 4-point Likert scale in terms of benefit (economic, environmental, and benefit to people) and feasibility (economic, social/cultural, political, and implementation). The six highest-scoring options populated a third Delphi poll, which 22 stakeholders from diverse sectors completed in April 2015. The academics and stakeholders also prioritized the response options using ranking exercises. The technique successfully gauged expert opinion on ASGM, and helped identify potential responses, policies and solutions for the sector. This is timely given that improvement to the ASGM sector is an important component within the UN Minamata Convention. PMID:26378557

  6. Identification of Response Options to Artisanal and Small-Scale Gold Mining (ASGM in Ghana via the Delphi Process

    Directory of Open Access Journals (Sweden)

    Avik Basu

    2015-09-01

    Full Text Available The Delphi technique is a means of facilitating discussion among experts in order to develop consensus, and can be used for policy formulation. This article describes a modified Delphi approach in which 27 multi-disciplinary academics and 22 stakeholders from Ghana and North America were polled about ways to address negative effects of small-scale gold mining (ASGM in Ghana. In early 2014, the academics, working in disciplinary groups, synthesized 17 response options based on data aggregated during an Integrated Assessment of ASGM in Ghana. The researchers participated in two rounds of Delphi polling in March and April 2014, during which 17 options were condensed into 12. Response options were rated via a 4-point Likert scale in terms of benefit (economic, environmental, and benefit to people and feasibility (economic, social/cultural, political, and implementation. The six highest-scoring options populated a third Delphi poll, which 22 stakeholders from diverse sectors completed in April 2015. The academics and stakeholders also prioritized the response options using ranking exercises. The technique successfully gauged expert opinion on ASGM, and helped identify potential responses, policies and solutions for the sector. This is timely given that improvement to the ASGM sector is an important component within the UN Minamata Convention.

  7. Web-based interventions to decrease alcohol use in adolescents: a Delphi study about increasing effectiveness and reducing drop-out.

    Science.gov (United States)

    Jander, Astrid; Crutzen, Rik; Mercken, Liesbeth; De Vries, Hein

    2015-04-09

    Web-based computer-tailored (CT) interventions have a high potential to reach a large number of people and effectively change health risk behaviors and their determinants. However, effect studies show small and variable effect sizes, and these interventions also suffer from high drop-out. In this study we explored how Web-based CT interventions can be used effectively to reduce binge drinking in 16- to 18-year-old adolescents. A three-round Delphi study was conducted. We invited experts to identify strategies to be used in Web-based CT interventions that can effectively decrease binge drinking in adolescents and to rate these strategies by importance. We asked to discriminate between interventions targeted for adolescents and those targeted for parents. Furthermore, we asked experts to suggest strategies for reducing drop-out and to indicate their importance. Important strategies mentioned by the experts were: encouraging parents to set appropriate rules, encouraging consistent communication, and training refusal skills among adolescents. Concerning the reduction of drop-out from Web-based CT interventions experts came up with suggestions involving the content of the intervention (e.g., relevant material, use of language, tailored messages) but also involving the use of reminders and incentives. The results of this explorative study provide useful strategies to increase effectiveness and decrease drop-out in future interventions.

  8. Methodological and Conceptual Issues Confronting a Cross-Country Delphi Study of Educational Program Evaluation

    Science.gov (United States)

    Hung, Hsin-Ling; Altschuld, James W.; Lee, Yi-Fang

    2008-01-01

    Although the Delphi is widely used, research on certain methodological issues is somewhat limited. After a brief introduction to the strengths, limitations, and methodological challenges of the technique, we share our experiences (as well as problems encountered) with an electronic Delphi of educational program evaluation (EPE) in the Asia-Pacific…

  9. Application of Delphi method in site selection of desalination plants

    Directory of Open Access Journals (Sweden)

    M. Sepehr

    2017-12-01

    Full Text Available Given the reduced freshwater supplies across the world, seawater desalination is one of the appropriate methods available for producing freshwater. Selecting an optimal location is crucial in the installation of these plants owing to the environmental problems they cause. The present study was conducted to identify optimal locations for installing desalination Plants in the coastal areas of southern Iran (Hormozgan Province with application of Delphi method. To implement this technique and identify, screen and prioritize effective criteria and sub-criteria, ten experts were surveyed through questionnaires and eight criteria and 18 sub-criteria were identified. All these sub-criteria were evaluated and classified in ArcGIS into five classes as input layers. The maps were then integrated based on the modulation importance coefficient and the identified priorities using a linear Delphi model and the final map was reclassified into five categories. Environmentally sensitive areas and seawater quality were respectively the criterion and sub-criterion that received the highest importance. After combining the layers and obtaining the final map, 63 locations were identified for installing desalination plants in the coastal areas on the Persian Gulf and Oman Sea in Hormozgan Province.  At the end, 27 locations were high important and had optimal environmental conditions for establishing desalination plants. Of the 27 locations, six were located in the coastal area of the Oman Sea, one in the coastal area of the Strait of Hormuz and 20 others in the coastal area of the Persian Gulf.

  10. Delphi FND Application Object Library -

    Data.gov (United States)

    Department of Transportation — Delphi FND Application Object Library contains the following data elements, but are not limited to temporary data tables for the logged in session, information about...

  11. Evaluation of Nine Consensus Indices in Delphi Foresight Research and Their Dependency on Delphi Survey Characteristics: A Simulation Study and Debate on Delphi Design and Interpretation

    Science.gov (United States)

    Birko, Stanislav; Dove, Edward S.; Özdemir, Vural

    2015-01-01

    The extent of consensus (or the lack thereof) among experts in emerging fields of innovation can serve as antecedents of scientific, societal, investor and stakeholder synergy or conflict. Naturally, how we measure consensus is of great importance to science and technology strategic foresight. The Delphi methodology is a widely used anonymous survey technique to evaluate consensus among a panel of experts. Surprisingly, there is little guidance on how indices of consensus can be influenced by parameters of the Delphi survey itself. We simulated a classic three-round Delphi survey building on the concept of clustered consensus/dissensus. We evaluated three study characteristics that are pertinent for design of Delphi foresight research: (1) the number of survey questions, (2) the sample size, and (3) the extent to which experts conform to group opinion (the Group Conformity Index) in a Delphi study. Their impacts on the following nine Delphi consensus indices were then examined in 1000 simulations: Clustered Mode, Clustered Pairwise Agreement, Conger’s Kappa, De Moivre index, Extremities Version of the Clustered Pairwise Agreement, Fleiss’ Kappa, Mode, the Interquartile Range and Pairwise Agreement. The dependency of a consensus index on the Delphi survey characteristics was expressed from 0.000 (no dependency) to 1.000 (full dependency). The number of questions (range: 6 to 40) in a survey did not have a notable impact whereby the dependency values remained below 0.030. The variation in sample size (range: 6 to 50) displayed the top three impacts for the Interquartile Range, the Clustered Mode and the Mode (dependency = 0.396, 0.130, 0.116, respectively). The Group Conformity Index, a construct akin to measuring stubbornness/flexibility of experts’ opinions, greatly impacted all nine Delphi consensus indices (dependency = 0.200 to 0.504), except the Extremity CPWA and the Interquartile Range that were impacted only beyond the first decimal point (dependency

  12. Evaluation of Nine Consensus Indices in Delphi Foresight Research and Their Dependency on Delphi Survey Characteristics: A Simulation Study and Debate on Delphi Design and Interpretation.

    Science.gov (United States)

    Birko, Stanislav; Dove, Edward S; Özdemir, Vural

    2015-01-01

    The extent of consensus (or the lack thereof) among experts in emerging fields of innovation can serve as antecedents of scientific, societal, investor and stakeholder synergy or conflict. Naturally, how we measure consensus is of great importance to science and technology strategic foresight. The Delphi methodology is a widely used anonymous survey technique to evaluate consensus among a panel of experts. Surprisingly, there is little guidance on how indices of consensus can be influenced by parameters of the Delphi survey itself. We simulated a classic three-round Delphi survey building on the concept of clustered consensus/dissensus. We evaluated three study characteristics that are pertinent for design of Delphi foresight research: (1) the number of survey questions, (2) the sample size, and (3) the extent to which experts conform to group opinion (the Group Conformity Index) in a Delphi study. Their impacts on the following nine Delphi consensus indices were then examined in 1000 simulations: Clustered Mode, Clustered Pairwise Agreement, Conger's Kappa, De Moivre index, Extremities Version of the Clustered Pairwise Agreement, Fleiss' Kappa, Mode, the Interquartile Range and Pairwise Agreement. The dependency of a consensus index on the Delphi survey characteristics was expressed from 0.000 (no dependency) to 1.000 (full dependency). The number of questions (range: 6 to 40) in a survey did not have a notable impact whereby the dependency values remained below 0.030. The variation in sample size (range: 6 to 50) displayed the top three impacts for the Interquartile Range, the Clustered Mode and the Mode (dependency = 0.396, 0.130, 0.116, respectively). The Group Conformity Index, a construct akin to measuring stubbornness/flexibility of experts' opinions, greatly impacted all nine Delphi consensus indices (dependency = 0.200 to 0.504), except the Extremity CPWA and the Interquartile Range that were impacted only beyond the first decimal point (dependency = 0

  13. Evaluation of Nine Consensus Indices in Delphi Foresight Research and Their Dependency on Delphi Survey Characteristics: A Simulation Study and Debate on Delphi Design and Interpretation.

    Directory of Open Access Journals (Sweden)

    Stanislav Birko

    Full Text Available The extent of consensus (or the lack thereof among experts in emerging fields of innovation can serve as antecedents of scientific, societal, investor and stakeholder synergy or conflict. Naturally, how we measure consensus is of great importance to science and technology strategic foresight. The Delphi methodology is a widely used anonymous survey technique to evaluate consensus among a panel of experts. Surprisingly, there is little guidance on how indices of consensus can be influenced by parameters of the Delphi survey itself. We simulated a classic three-round Delphi survey building on the concept of clustered consensus/dissensus. We evaluated three study characteristics that are pertinent for design of Delphi foresight research: (1 the number of survey questions, (2 the sample size, and (3 the extent to which experts conform to group opinion (the Group Conformity Index in a Delphi study. Their impacts on the following nine Delphi consensus indices were then examined in 1000 simulations: Clustered Mode, Clustered Pairwise Agreement, Conger's Kappa, De Moivre index, Extremities Version of the Clustered Pairwise Agreement, Fleiss' Kappa, Mode, the Interquartile Range and Pairwise Agreement. The dependency of a consensus index on the Delphi survey characteristics was expressed from 0.000 (no dependency to 1.000 (full dependency. The number of questions (range: 6 to 40 in a survey did not have a notable impact whereby the dependency values remained below 0.030. The variation in sample size (range: 6 to 50 displayed the top three impacts for the Interquartile Range, the Clustered Mode and the Mode (dependency = 0.396, 0.130, 0.116, respectively. The Group Conformity Index, a construct akin to measuring stubbornness/flexibility of experts' opinions, greatly impacted all nine Delphi consensus indices (dependency = 0.200 to 0.504, except the Extremity CPWA and the Interquartile Range that were impacted only beyond the first decimal point

  14. Content validation of the Self-perception of Family Health Status scale using the Delphi technique Validación de contenido de la escala de autopercepción del estado de salud familiar usando la técnica Delphi Validação de conteúdo da escala de auto-percepção do estado da saúde familiar utilizando a técnica Delphi

    Directory of Open Access Journals (Sweden)

    Joaquín Salvador Lima-Rodríguez

    2013-04-01

    Full Text Available OBJECTIVE: To ascertain the content validity of the Self-perception of Family Health Status scale. METHOD: A validation study of an instrument with an online Delphi panel using the consensus technique. Eighteen experts in the subject were intentionally selected, with a multidisciplinary origin and representing different professional fields. Each of the proposed items was assessed using a five-point scale, and open-ended questions, to modify or propose items. Descriptive analysis was performed of the sample and the items, applying criteria of validation/elimination. RESULTS: The first round had a response rate of 83.3% and validated 75 of the 96 proposed items; the second had a response rate of 80%, and validated the 21 newly created items, concluding the panel of experts. CONCLUSIONS: We present an instrument to measure self-perception of family health status, from a nursing perspective. This may be an advance in scientific knowledge, to facilitate the assessment of the state of health of the family unit, enabling detection of alterations, and to facilitate interventions to prevent consequences to the family unit and its members. It can be used in clinical care, research or teaching. OBJETIVO: Comprobar la validez de contenido de la escala de Autopercepción del Estado de Salud Familiar. MÉTODO: Estudio de validación de instrumento con panel Delphi on-line como técnica de consenso. Se seleccionaron intencionalmente 18 expertos/as en el tema, de origen multidisciplinar y de diferentes ámbitos profesionales. Cada uno de los ítems propuestos fue valorado mediante una escala de cinco puntos, y mediante preguntas abiertas, para modificar o proponer ítems. Se realizó análisis descriptivo de la muestra y de los ítems, aplicando criterios de estimación/desestimación. RESULTADOS: La primera ronda tuvo una tasa de respuesta del 83,3% y se estimaron 75 ítems de los 96 propuestos; la segunda tuvo una tasa de respuesta de 80%, y se estimaron los

  15. The Application and Design of IIR DigitalL Filiter Based on Delphi%基于Delphi的IIR数字滤波器的设计与实现

    Institute of Scientific and Technical Information of China (English)

    张倩; 喻金科

    2015-01-01

    The filter is the basis of digital signal processing. In view of the data acquisition process will often introduce the high frequency interference,the paper uses Butterworth iflter design method,designs a IIR low-pass digital iflter,and realizes IIR iflter based on Delphi environment design method.Through the iflter,the inside of the signal interference signal is ifltered out basically,useful signal is not affected,effect is good,there is a certain practical value.%滤波是数字信号处理的基础,数据采集过程中经常会引入高频干扰,文章利用巴特沃斯(Butterworth)滤波器设计方法,设计了一种IIR低通数字滤波器,并基于Delphi环境应用软件设计的方法实现了IIR滤波器。通过滤波,信号里面的干扰信号基本上被滤除,有用信号未受到影响,滤波效果尚可,具有一定的实用价值。

  16. 用Delphi设计电子文件管理系统%A Delphi-based design of electronic document management system

    Institute of Scientific and Technical Information of China (English)

    陈建华; 胡开明

    2012-01-01

    The use of computer and communication technology in daily work, the establishment of internal business relationship in companies and the increase of electronic documents are companioned with such problems as management, access and efficiency. A Delphi-based design of electronic document management system is set up to solve such problems and an electronic document database is suggested to track, record and monitor the management, the collation, the storage and the access to electronic documents.%随着计算机技术和通信技术被广泛地应用到日常工作中,以及企业内部各种业务系统的建立,企业内部的电子文件数量快速增长,这些电子文件以各式各样的文件格式分散存储,造成管理困难,查找缓慢,效率低下。为了提高工作效率,便于检索、查询,提出用Delphi设计电子文件管理系统,建立电子文件资料数据库,对电子文件活动进行全面追踪、记录与监控,实现对电子文件的整理、归档、维护保管以及科学应用。

  17. Wavelet Based Image Denoising Technique

    Directory of Open Access Journals (Sweden)

    Sachin D Ruikar

    2011-03-01

    Full Text Available This paper proposes different approaches of wavelet based image denoising methods. The search for efficient image denoising methods is still a valid challenge at the crossing of functional analysis and statistics. In spite of the sophistication of the recently proposed methods, most algorithms have not yet attained a desirable level of applicability. Wavelet algorithms are useful tool for signal processing such as image compression and denoising. Multi wavelets can be considered as an extension of scalar wavelets. The main aim is to modify the wavelet coefficients in the new basis, the noise can be removed from the data. In this paper, we extend the existing technique and providing a comprehensive evaluation of the proposed method. Results based on different noise, such as Gaussian, Poisson’s, Salt and Pepper, and Speckle performed in this paper. A signal to noise ratio as a measure of the quality of denoising was preferred.

  18. Measuring elimination of podoconiosis, endemicity classifications, case definition and targets: an international Delphi exercise.

    Science.gov (United States)

    Deribe, Kebede; Wanji, Samuel; Shafi, Oumer; Muheki Tukahebwa, Edridah; Umulisa, Irenee; Davey, Gail

    2015-09-01

    Podoconiosis is one of the major causes of lymphoedema in the tropics. Nonetheless, currently there are no endemicity classifications or elimination targets to monitor the effects of interventions. This study aimed at establishing case definitions and indicators that can be used to assess endemicity, elimination and clinical outcomes of podoconiosis. This paper describes the result of a Delphi technique used among 28 experts. A questionnaire outlining possible case definitions, endemicity classifications, elimination targets and clinical outcomes was developed. The questionnaire was distributed to experts working on podoconiosis and other neglected tropical diseases in two rounds. The experts rated the importance of case definitions, endemic classifications, elimination targets and the clinical outcome measures. Median and mode were used to describe the central tendency of expert responses. The coefficient of variation was used to describe the dispersals of expert responses. Consensus on definitions and indicators for assessing endemicity, elimination and clinical outcomes of podoconiosis directed at policy makers and health workers was achieved following the two rounds of Delphi approach among the experts. Based on the two Delphi rounds we discuss potential indicators and endemicity classification of this disabling disease, and the ongoing challenges to its elimination in countries with the highest prevalence. Consensus will help to increase effectiveness of podoconiosis elimination efforts and ensure comparability of outcome data. © The Author 2015. Published by Oxford University Press on behalf of Royal Society of Tropical Medicine and Hygiene.

  19. Identifying Quality Indicators of SAE and FFA: A Delphi Approach

    Science.gov (United States)

    Jenkins, Charles Cordell, III; Kitchel, Tracy

    2009-01-01

    The purpose of this study was to determine quality indicators for SAE and FFA according to 36 experts across the United States. This is a part of a larger study looking at all components of the traditional three-circle model. The study utilized the Delphi technique to garner expert opinion about quality indicators in Agricultural Education. For…

  20. A Delphi Study to Update CTE Teacher Competencies

    Science.gov (United States)

    Manley, R. Adam; Zinser, Richard

    2012-01-01

    Purpose: The purpose of this project was to create a contemporary taxonomy of Career and Technical Education (CTE) teacher competencies in order to evaluate and improve CTE teacher education. Design/methodology/approach: This study utilized a modified Delphi technique with a large sample of CTE experts--teachers, administrators, and…

  1. Electronic-Imen-Delphi (EID): An Online Conferencing Procedure.

    Science.gov (United States)

    Passig, David; Sharbat, Aviva

    2000-01-01

    Examines the efficiency of the Imen-Delphi (ID) technique as an electronic procedure for conferencing that helps participants clarify their opinions and expectations regarding preferable and possible futures. Describes an electronic version of the original ID procedure and tested its efficiency among a group of experts on virtual reality and…

  2. A real-world approach to Evidence-Based Medicine in general practice: a competency framework derived from a systematic review and Delphi process.

    Science.gov (United States)

    Galbraith, Kevin; Ward, Alison; Heneghan, Carl

    2017-05-03

    Evidence-Based Medicine (EBM) skills have been included in general practice curricula and competency frameworks. However, GPs experience numerous barriers to developing and maintaining EBM skills, and some GPs feel the EBM movement misunderstands, and threatens their traditional role. We therefore need a new approach that acknowledges the constraints encountered in real-world general practice. The aim of this study was to synthesise from empirical research a real-world EBM competency framework for general practice, which could be applied in training, in the individual pursuit of continuing professional development, and in routine care. We sought to integrate evidence from the literature with evidence derived from the opinions of experts in the fields of general practice and EBM. We synthesised two sets of themes describing the meaning of EBM in general practice. One set of themes was derived from a mixed-methods systematic review of the literature; the other set was derived from the further development of those themes using a Delphi process among a panel of EBM and general practice experts. From these two sets of themes we constructed a real-world EBM competency framework for general practice. A simple competency framework was constructed, that acknowledges the constraints of real-world general practice: (1) mindfulness - in one's approach towards EBM itself, and to the influences on decision-making; (2) pragmatism - in one's approach to finding and evaluating evidence; and (3) knowledge of the patient - as the most useful resource in effective communication of evidence. We present a clinical scenario to illustrate how a GP might demonstrate these competencies in their routine daily work. We have proposed a real-world EBM competency framework for general practice, derived from empirical research, which acknowledges the constraints encountered in modern general practice. Further validation of these competencies is required, both as an educational resource and as a

  3. Using the Delphi method to engage stakeholders: a comparison of two studies.

    Science.gov (United States)

    Geist, Monica R

    2010-05-01

    Involving stakeholders can greatly impact evaluation results. The Delphi method, a consensus-building tool, is a promising process to promote and encourage involvement from all stakeholders during the evaluation framing process. The Delphi method removes geographic challenges and time boundaries allowing all stakeholders to participate. The Delphi method uses a series of surveys interspersed with controlled feedback designed to gather information and build consensus without requiring face-to-face meetings. Two different formats of the Delphi method, a paper-and-pencil, postal-mail version and a web-based, real-time computer version are compared in this study. Both versions of the Delphi were administered to a non-profit community based organization as part of framing an evaluation. Participation rates were better with the paper-pencil version. The quantity and quality of data collected were comparable in both versions.

  4. Cosmic multimuon bundles detected by DELPHI

    CERN Document Server

    Rídky, J

    2004-01-01

    The DELPHI detector located at LEP accelerator has been used also to measure multimuon bundles originated from cosmic ray interactions. Two subdetectors-hadron calorimeter and time projection chamber, are used for this purpose. The 1999 and 2000 data are analyzed over wide range of multiplicities. The multiplicity distribution is compared with prediction of Monte Carlo simulation based on CORSIKA/QGSJET. The Monte-Carlo does not describe the large multiplicity part of data. Even the extreme assumption on the cosmic ray composition (pure iron nuclei) hardly predicts comparable number of high-multiplicity events.

  5. DELPHI's Ring Imaging Cherenkov Chamber

    CERN Multimedia

    1989-01-01

    The hundreds of mirrors around this Ring Imaging Cherenkov Chamber reflect cones of light created by fast moving particles to a detector. The velocity of a particle can be measured by the size of the ring produced on the detector. DELPHI, which ran from 1989 to 2000 on the LEP accelerator, was primarily concerned with particle identification.

  6. Development of Forestland Occupation Data Management System Based on Delphi and Access%基于Delphi和Access开发使用林地数据管理系统

    Institute of Scientific and Technical Information of China (English)

    张煜

    2013-01-01

    By taking Microsoft Access as the backstage database and applying program development software Delphi2007 of Code Gear Company,forestland occupation Data Management System was developed,aiming at reducing the workload of the statistical data,ensuring the accuracy of data,improving the data file management,and increasing the work efficiency of forestland occupation project.%以Microsoft Access作为后台数据库,应用程序开发软件Delphi 2007开发了“使用林地数据管理系统”,目的在于减轻数据统计的工作量,保证成果数据的准确性,完善数据档案的管理,进而提高工作效率.

  7. Establishment of medical journal Fuzzy Evaluation Model based on Delphi method%建立基于Delphi法的医学期刊模糊评价模型

    Institute of Scientific and Technical Information of China (English)

    李海燕; 安静; 夏旭

    2009-01-01

    通过调研相关文献资料,编制医学期刊评价调查表,运用特尔斐(Delphi)法对医学期刊评价指标进行筛选,并对咨询专家的可靠性进行分析.研究各级指标权重的赋值方法,建立医学期刊质量模糊评价模型.

  8. The Delphi Technique in Identifying Learning Objectives for the Development of Science, Technology and Society Modules for Palestinian Ninth Grade Science Curriculum

    Science.gov (United States)

    Abualrob, Marwan M. A.; Daniel, Esther Gnanamalar Sarojini

    2013-01-01

    This article outlines how learning objectives based upon science, technology and society (STS) elements for Palestinian ninth grade science textbooks were identified, which was part of a bigger study to establish an STS foundation in the ninth grade science curriculum in Palestine. First, an initial list of STS elements was determined. Second,…

  9. Nontraditional manufacturing technique-Nano machining technique based on SPM

    Institute of Scientific and Technical Information of China (English)

    DONG; Shen; YAN; Yongda; SUN; Tao; LIANG; Yingchun; CHENG

    2004-01-01

    Nano machining based on SPM is a novel, nontraditional advanced manufacturing technique. There are three main machining methods based on SPM, i.e.single atom manipulation, surface modification using physical or chemical actions and mechanical scratching. The current development of this technique is summarized. Based on the analysis of mechanical scratching mechanism, a 5 μm micro inflation hole is fabricated on the surface of inertial confinement fusion (ICF) target. The processing technique is optimized. The machining properties of brittle material, single crystal Ge, are investigated. A micro machining system combining SPM and a high accuracy stage is developed. Some 2D and 3D microstructures are fabricated using the system. This method has broad applications in the field of nano machining.

  10. Development of an evidence-based protocol for care of pilonidal sinus wounds healing by secondary intent using a modified Reactive Delphi procedure. Part 2: methodology, analysis and results.

    Science.gov (United States)

    Harris, Connie L; Holloway, Samantha

    2012-04-01

    This is the second part of the article based on the thesis work for a Masters of Science in Wound Healing and Tissue Repair, Cardiff University, to develop an evidence-based protocol for the care of pilonidal sinus wounds (PSWs) healing by secondary intent, using a modified Reactive Delphi process. The sample included surgeons, clinic physicians, nurses and enterostomal therapy nurses experienced in the care of these wounds. Item generation involved an extensive review of the literature to identify key aspects of evidence-based wound care essential to wound healing, infected wounds and pilonidal wounds healing by secondary intent and drawing on clinical experience. The participants responded via an electronic Delphi website, using a 4-point Likert rating scale and a ranking system. Comments were invited. Feedback was provided to the participants at the end of each round, that included comments, consensus scores, content validity index and additional information that provided rationale and references, or minor revision if requested. This project successfully achieved the objectives, which were to identify the areas of care that negatively or positively influences healing of postoperative PSWs and to inform, educate and broaden the considerations regarding these factors for health care professionals.

  11. Research Areas in Distance Education: A Delphi Study

    Science.gov (United States)

    Zawacki-Richter, Olaf

    2009-01-01

    This study had three purposes: Firstly, to develop a categorization of research areas in distance education; secondly, to identify the most important research areas in distance education; and thirdly, to identify the most neglected research areas in distance education. Based on a literature review and a Delphi study, three broad levels or…

  12. Establishing a Research Agenda for Art Therapy: A Delphi Study

    Science.gov (United States)

    Kaiser, Donna; Deaver, Sarah

    2013-01-01

    Art therapy in the United States is a young profession that would benefit from an identified research agenda to marshal resources more effectively to address gaps in the knowledge base. This article describes a Delphi study of U.S. art therapy researchers who were surveyed on research priorities for the profession. The research panelists were…

  13. Establishing a Research Agenda for Art Therapy: A Delphi Study

    Science.gov (United States)

    Kaiser, Donna; Deaver, Sarah

    2013-01-01

    Art therapy in the United States is a young profession that would benefit from an identified research agenda to marshal resources more effectively to address gaps in the knowledge base. This article describes a Delphi study of U.S. art therapy researchers who were surveyed on research priorities for the profession. The research panelists were…

  14. Future Directions in Deinstitutionalization and Education: A Delphi Investigation.

    Science.gov (United States)

    Putnam, Joanne W.; Bruininks, Robert H.

    1986-01-01

    A total of 33 special education leaders presented forecasts, through a Delphi survey procedure, for the deinstitutionalization of and the residential and education services for the handicapped. It was predicted that the deinstitutionalization movement will not lose its momentum and that community based residential services will become increasingly…

  15. Cost Estimation of Equipment Software in Earlier Period Based on Wideband Delphi and Function Resolve%基于宽带Delphi和功能分解相结合的装备软件早期成本估算

    Institute of Scientific and Technical Information of China (English)

    张敏芳; 刘沃野; 陈晓; 李彬

    2011-01-01

    针对装备软件早期成本估算时存在的相关成本信息基础薄弱的"贫信息"问题,提出了基于宽带Delphi与功能分解的装备软件早期成本估算组合法.该组合法依据领域专家的知识和经验对软件成本做出判断,避免了需要过多依赖历史信息的局限性.而功能分解法能将软件按功能模块进行细分,提高了宽带Delphi估算的精度.%The article proposes a way to estimate the cost of equipment software in the earlier period in the case of a small historical data sample based on Wideband Delphi and function resolve. This combined method makes judgment based on the knowledge and experience of experts. In this way, we can avoid the limit of excessive dependence on historical information. Function resolve subdivides the software according to function mold and improves accuracy of the Wideband Delphi.

  16. Exploring health literacy competencies towards patient education programme for Chinese-speaking healthcare professionals: a Delphi study

    Science.gov (United States)

    Chang, Li-Chun; Chen, Yu-Chi; Wu, Fei Ling; Liao, Li-Ling

    2017-01-01

    Objectives To achieve consensus on a set of competencies in health literacy practice based on a literature review and expert consultation. Setting Hospitals and community health centres in Taiwan. Method A 2-stage modified Delphi study involving a literature review was conducted, followed by qualitative interviews and 3 rounds of email-based data collection over a 3-month period in 2011. Participants 15 Chinese healthcare practitioners with more than 6 months’ experience in patient education were interviewed to collect data on health literacy practice. 24 experts (12 academic scholars in health literacy and 12 professionals with training related to health literacy practice) were invited to participate in the Delphi process. Results Qualitative data from the interviews were analysed and summarised to form 99 competency items for health literacy practice, which were categorised into 5 domains of health literacy practice including those pertaining to knowledge and skills. Consensus was reached on 92 of 99 competencies, using a modified Delphi technique. Conclusions The 92 competencies in health literacy practice embraced core components of patient education in the Chinese healthcare profession. PMID:28093428

  17. Bases en technique du vide

    CERN Document Server

    Rouviere, Nelly

    2017-01-01

    Cette seconde édition, 20 ans après la première, devrait continuer à aider les techniciens pour la réalisation de leur système de vide. La technologie du vide est utilisée, à présent, dans de nombreux domaines très différents les uns des autres et avec des matériels très fiables. Or, elle est souvent bien peu étudiée, de plus, c'est une discipline où le savoir-faire prend tout son sens. Malheureusement la transmission par des ingénieurs et techniciens expérimentés ne se fait plus ou trop rapidement. La technologie du vide fait appel à la physique, à la chimie, à la mécanique, à la métallurgie, au dessin industriel, à l'électronique, à la thermique, etc. Cette discipline demande donc de maîtriser des techniques de domaines très divers, et ce n'est pas chose facile. Chaque installation est en soi un cas particulier avec ses besoins, sa façon de traiter les matériaux et celle d'utiliser les matériels. Les systèmes de vide sont parfois copiés d'un laboratoire à un autre et le...

  18. 基于医疗质量管理患者信任度评价指标Delphi构建%The Development of Patient Trust Index Based on Improvement of Medical Service Quality by Using Delphi Survey Method

    Institute of Scientific and Technical Information of China (English)

    董恩宏; 鲍勇

    2011-01-01

    在整理文献综述的基础上,挑选具有代表性的65个指标制成专家咨询问卷,用Delphi法对20位专家进行两轮咨询,根据咨询结果筛选和修改指标体系,最终构建基于医疗质量管理的患者信任度评价指标体系,证明Delphi法在构建基于医疗质量管理的患者信任度评价指标体系的研究中具有良好效果.%To develop a set of patient trust indicators, twenty experts from different medical education disciplines were involved in a two - step Delphi Survey. After refined, structured, and rated according to their importance, twenty - eight indicators remained lastly. The findings indicate that the Delphi survey can be taken as a good method to develop a patient trust assessment index system based on the improvement of medical service quality.

  19. The Design of Medical Instrumentation Retrieval System Based on Delphi%基于Delphi的医疗器械商品检索系统设计

    Institute of Scientific and Technical Information of China (English)

    张学龙; 俞凯君

    2002-01-01

    报道了采用Delphi 6.0编程工具研究并设计的医疗器械商品检索系统,介绍了系统开发的环境特征、数据库应用程序开发步骤及开发过程,包括创建主界面、数据库及编程等.最后分析了该系统存在的不足及改进措施.

  20. Delphi Technique Used in Laser Incident Surveillance

    Science.gov (United States)

    2004-01-01

    personnel may not know that an exposure has occurred [1]. Non-injury or near - miss data is valuable, in addition to objective injury data, for studying...procedure. No injury is defined as the malfunction of equipment not resulting in an exposure ( near miss ). Side effects are primarily generated by medical

  1. 基于Delphi-SWOT混合分析方法的资源型城市可持续发展战略研究--以新疆克拉玛依市为例%Sustainable Development Strategies Research of Resource-based Cities Based on Delphi-SWOT Analysis Method--A Case Study of Karamay

    Institute of Scientific and Technical Information of China (English)

    张春玉; 曹肖

    2014-01-01

    Traditional SWOT analysis method lists more items but not fully synthesizes. This paper proposed hybrid Delphi-SWOT analysis method. By means of the Delphi,the factors of Karamay sustainable development were identified and confirmed. According to factors on the basis of Delphi,a quantitative processing of sustainable development was given. Finally,following the order of the factors’importance,the sustainable development strategies were made.%提出Delphi-SWOT混合分析方法,借助于德尔菲专家咨询,辨识确认新疆克拉玛依市可持续发展的考量因素;在根据德尔菲基础上的因素考量,给出了可持续发展影响因素取舍的定量处理依据,并遵循重要性次序原则制定了可持续发展策略。

  2. Malaria chemoprophylaxis recommendations for immigrants to Europe, visiting relatives and friends - a Delphi method study

    Directory of Open Access Journals (Sweden)

    Bisoffi Zeno

    2011-05-01

    Full Text Available Abstract Background Numbers of travellers visiting friends and relatives (VFRs from Europe to malaria endemic countries are increasing and include long-term and second generation immigrants, who represent the major burden of malaria cases imported back into Europe. Most recommendations for malaria chemoprophylaxis lack a solid evidence base, and often fail to address the cultural, social and economic needs of VFRs. Methods European travel medicine experts, who are members of TropNetEurop, completed a sequential series of questionnaires according to the Delphi method. This technique aims at evaluating and developing a consensus through repeated iterations of questionnaires. The questionnaires in this study included questions about professional experience with VFRs, controversial issues in malaria prophylaxis, and 16 scenarios exploring indications for prescribing and choice of chemoprophylaxis. Results The experience of participants was rather diverse as was their selection of chemoprophylaxis regimen. A significant consensus was observed in only seven of 16 scenarios. The analysis revealed a wide variation in prescribing choices with preferences grouped by region of practice and increased prescribing seen in Northern Europe compared to Central Europe. Conclusions Improving the evidence base on efficacy, adherence to chemoprophylaxis and risk of malaria and encouraging discussion among experts, using techniques such as the Delphi method, may reduce the variability in prescription in European travel clinics.

  3. A True Delphi Approach: Developing a Tailored Curriculum in Response to Local Agriscience Need

    Energy Technology Data Exchange (ETDEWEB)

    Rubenstein, Eric; Thoron, Andrew; Burleson, Sarah

    2012-02-07

    The Delphi approach is a structured communication technique, developed as a systematic, interactive forecasting method which relies on a panel of experts. In this specific case experts from Industry, Education and Extension fields addressed needs for educational programs in a traditional agriculturally-based community, environmentally conscious practices in order to restore environmental integrity and multi-disciplinary approach to solve sustainability problems facing the agricultural industry. The experts were divided into two main groups, (A) Secondary and (B) Post-secondary, and answered questionnaires in three rounds: • 1st Round – Participants generated a list of knowledge, skills, and competencies followed • 2nd Round – Panelists rated each item • 3rd Round – Panelists were given the opportunity to combine and add additional items As a result, top six items from both groups were not found similar, secondary panelists centralized around employment skills and post-secondary panelists focused on content areas. Implications include a need for content-based curriculum for post-secondary graduates, utilization of true-Delphi technique for future curriculum development research and further examination of students that complete secondary and post-secondary programs in biofuels/sustainable agriculture.

  4. From ignorance to evidence? The use of programme evaluation in conservation: Evidence from a Delphi survey of conservation experts.

    Science.gov (United States)

    Curzon, Hannah Fay; Kontoleon, Andreas

    2016-09-15

    Persistent gaps in the evidence base regarding the performance of conservation policies has put pressure on the conservation policy field to adopt 'best practice' programme evaluation methods. These are methods that account for the counterfactual and are able to attribute causality between a conservation policy and specific observable environmental and social impacts. Despite this pressure, use of such methods continues to be rare. This paper uses the Delphi technique to provide the first systematic assessment of the reasons behind the apparent hesitation of conservation practitioners to adopt rigorous policy impact evaluation methods. The Delphi study consisted of two online questionnaires conducted on conservation policy experts. The results presented confirm that the use of rigorous impact evaluation methods in conservation is still very limited but this, crucially, is not because conservationists are ignorant of these methods or their advantages. In fact, considerable effort is being made to develop and improve evidence standards but these efforts have largely been thwarted by large financial and time related constraints that mean even elementary evaluations are hard to achieve. The results from this Delphi study allow us to provide more realistic recommendations on how impact evaluation studies can be more widely embraced and implemented in conservation practice.

  5. Determinants of Social Accountability in Iranian Nursing and Midwifery Schools: A Delphi Study

    Directory of Open Access Journals (Sweden)

    Amir Reza Salehmoghaddam

    2017-04-01

    Full Text Available Background: Revising the medical education programs to meet the needs of society has become both a necessity and an important priority due to the considerable increase of population, changing patterns of diseases, and new health priorities. While this necessity has been highlighted in Iran’s Fifth Development Plan as well as its National 2025 Vision Plan, the determinants of social accountability have not been explained yet. This study aimed to develop determinants of social accountability in the Iranian Nursing and Midwifery Schools. Methods: This classic Delphi study included thirty experts in Nursing and Midwifery Education, Research and Services selected based on purposive sampling and three rounds of Delphi technique and conducted in Nursing and Midwifery School of Mashhad University of Medical Sciences. The primary data were collected using an initial structured questionnaire prepared through extensive review of literature. SPSS 11.5 software was used to analyze the data. The interquartile deviation and percentage of agreement were also used to study the consensus of opinion by experts. Results: Finding obtained from the rounds of Delphi resulted in selecting 69 determinants out of the initial pool of 128 primary determinants of social accountability. The items were selected based on experts’ consensus and categorized under three main activities of Nursing and Midwifery School, namely education, research, and service. Conclusion: Social accountability determinants were explained by 69 items for Schools of Nursing and Midwifery in Iran. The proposed determinants can be used by managers and authorities of Nursing and Midwifery School, policy makers, and evaluating institutions associated with them to ensure realizing social accountability goals.

  6. Determinants of Social Accountability in Iranian Nursing and Midwifery Schools: A Delphi Study

    Science.gov (United States)

    Salehmoghaddam, Amir Reza; Mazloom, Seyed Reza; Sharafkhani, Mohammad; Gholami, Hassan; Emami Zeydi, Amir; Khorashadizadeh, Fatemeh; Emadzadeh, Ali

    2017-01-01

    ABSTRACT Background: Revising the medical education programs to meet the needs of society has become both a necessity and an important priority due to the considerable increase of population, changing patterns of diseases, and new health priorities. While this necessity has been highlighted in Iran’s Fifth Development Plan as well as its National 2025 Vision Plan, the determinants of social accountability have not been explained yet. This study aimed to develop determinants of social accountability in the Iranian Nursing and Midwifery Schools. Methods: This classic Delphi study included thirty experts in Nursing and Midwifery Education, Research and Services selected based on purposive sampling and three rounds of Delphi technique and conducted in Nursing and Midwifery School of Mashhad University of Medical Sciences. The primary data were collected using an initial structured questionnaire prepared through extensive review of literature. SPSS 11.5 software was used to analyze the data. The interquartile deviation and percentage of agreement were also used to study the consensus of opinion by experts. Results: Finding obtained from the rounds of Delphi resulted in selecting 69 determinants out of the initial pool of 128 primary determinants of social accountability. The items were selected based on experts’ consensus and categorized under three main activities of Nursing and Midwifery School, namely education, research, and service. Conclusion: Social accountability determinants were explained by 69 items for Schools of Nursing and Midwifery in Iran. The proposed determinants can be used by managers and authorities of Nursing and Midwifery School, policy makers, and evaluating institutions associated with them to ensure realizing social accountability goals.

  7. DelPhi: a comprehensive suite for DelPhi software and associated resources

    Directory of Open Access Journals (Sweden)

    Li Lin

    2012-05-01

    Full Text Available Abstract Background Accurate modeling of electrostatic potential and corresponding energies becomes increasingly important for understanding properties of biological macromolecules and their complexes. However, this is not an easy task due to the irregular shape of biological entities and the presence of water and mobile ions. Results Here we report a comprehensive suite for the well-known Poisson-Boltzmann solver, DelPhi, enriched with additional features to facilitate DelPhi usage. The suite allows for easy download of both DelPhi executable files and source code along with a makefile for local installations. The users can obtain the DelPhi manual and parameter files required for the corresponding investigation. Non-experienced researchers can download examples containing all necessary data to carry out DelPhi runs on a set of selected examples illustrating various DelPhi features and demonstrating DelPhi’s accuracy against analytical solutions. Conclusions DelPhi suite offers not only the DelPhi executable and sources files, examples and parameter files, but also provides links to third party developed resources either utilizing DelPhi or providing plugins for DelPhi. In addition, the users and developers are offered a forum to share ideas, resolve issues, report bugs and seek help with respect to the DelPhi package. The resource is available free of charge for academic users from URL: http://compbio.clemson.edu/DelPhi.php.

  8. Rating scale for the assessment of competence in ultrasound-guided peripheral vascular access - a Delphi Consensus Study

    DEFF Research Database (Denmark)

    Primdahl, Stine C; Todsen, Tobias; Clemmesen, Louise;

    2016-01-01

    INTRODUCTION: Peripheral vascular access is vital for treatment and diagnostics of hospitalized patients. Ultrasound-guided vascular access (UGVA) is superior to the landmark technique. To ensure competence-based education, an assessment tool of UGVA competence is needed. We aimed to develop...... a global rating scale (RS) for assessment of UGVA competence based on opinions on the content from ultrasound experts in a modified Delphi consensus study. METHODS: We included experts from anesthesiology, emergency medicine and radiology across university hospitals in Denmark. Nine elements were drafted...

  9. Delphi and Matlab Hybrid Programming Research Based on COM STA Threading Model%基于COM STA线程模型的Delphi与Matlab混合编程研究

    Institute of Scientific and Technical Information of China (English)

    李丰

    2013-01-01

    针对传统的基于COM的Matlab与Delphi混合编程技术,界面容易出现冻结现象,详细讨论了其出现的原因,提出了一种基于COM STA线程模型的改进的混合编程方法,并以一信号包络提取为例给出了改进方法的具体实现.%The traditional COM based on the Matlab and Delphi hybrid programming technology, the interface is easy to appear the freezing phenomenon, discussed in detail the reasons for its occur, proposed a method based on the COM STA threading model im?proved hybrid programming, and to a signal envelope extraction as an example and gives a improved method concrete implementa?tion.

  10. DELPHI Barrel Ring Imaging Cherenkov Detector

    CERN Multimedia

    DELPHI was one of the four experiments installed at the LEP particle accelerator from 1989 - 2000. This is a piece of the Barrel Ring Imaging Cherenkov detector which was used to identify particles in DELPHI.It measured the Cherenkov light emitted when particles travelled faster than the speed of light through the material of the detector. The photo shows the complete Cherenkov detector.

  11. The Delphi Method And Decision Making

    OpenAIRE

    Villagrasa, Raimundo

    2015-01-01

    Se describe, analisa y critica el método Delphi, desarrollado para encontrar una opinión grupal para tomar decisiones de manera eficiente en una empresa. The article describes, analyzes and criticizes the Delphi method, developed to find a group opinion to make decisions in an efficient way in a firm.

  12. Incorporating Nonparametric Statistics into Delphi Studies in Library and Information Science

    Science.gov (United States)

    Ju, Boryung; Jin, Tao

    2013-01-01

    Introduction: The Delphi technique is widely used in library and information science research. However, many researchers in the field fail to employ standard statistical tests when using this technique. This makes the technique vulnerable to criticisms of its reliability and validity. The general goal of this article is to explore how…

  13. The Determination of Relevant Goals and Criteria Used to Select an Automated Patient Care Information System: A Delphi Approach

    OpenAIRE

    Chocholik, Joan K.; Bouchard, Susan E.; Tan, Joseph K. H.; Ostrow, David N.

    1999-01-01

    Objectives: To determine the relevant weighted goals and criteria for use in the selection of an automated patient care information system (PCIS) using a modified Delphi technique to achieve consensus.

  14. A DELPHI STUDY OF RISK FACTORS FOR ACHILLES TENDINOPATHY- OPINIONS OF WORLD TENDON EXPERTS

    Science.gov (United States)

    Watson, Paul J.; Barry, Simon

    2016-01-01

    Background and Purpose Achilles tendinopathy can be a debilitating chronic condition for both active and inactive individuals. The identification of risk facors is important both in preventing but also treating tendinopathy, many factors have been proposed but there is a lack of primary epidemiological data. The purpose of this study was to develop a statement of expert consensus on risk factors for Achilles tendinopathy in active and sedentary patient populations to inform a primary epidemiological study. Study design Delphi study Methods and Measures An online Delphi study was completed inviting participation from world tendon experts. The consensus was developed using three rounds of the Delphi technique. The first round developed a complete list of potential risk factors, the second round refined this list but also separated the factors into two population groups – active/athletic and inactive/sedentary. The third round ranked this list in order of perceived importance. Results Forty-four experts were invited to participate, 16 participated in the first round (response rate 40%) and two dropped out in the second round (resulting in a response rate of 35%). A total of 27 intrinsic and eight extrinsic risk factors were identified during round one. During round two only 12 intrinsic and five extrinsic risk factors were identified as important in active/athletic tendinopathy while 14 intrinsic and three extrinsic factors were identified as important for inactive/sedentary tendinopathy. Conclusions Risk factors for Achilles tendinopathy were identified based on expert consensus, and these factors provide a basis for primary epidemiological studies. Plantarflexor strength was identified as the primary modifiable factor in the active/athletic group while systemic factors were identified as important in the inactive/sedentary group, many of the potential factors suggested for either group were non-modifiable. Non-modifiable factors include: previous tendinopathy

  15. DELPHI Barrel Muon Chamber Module

    CERN Multimedia

    1989-01-01

    The module was used as part of the muon identification system on the barrel of the DELPHI detector at LEP, and was in active use from 1989 to 2000. The module consists of 7 individual muons chambers arranged in 2 layers. Chambers in the upper layer are staggered by half a chamber width with respect to the lower layer. Each individual chamber is a drift chamber consisting of an anode wire, 47 microns in diameter, and a wrapped copper delay line. Each chamber provided 3 signal for each muon passing through the chamber, from which a 3D space-point could be reconstructed.

  16. Delphi report 1995 on developments in science and technology. Mini Delphi; Delphi-Bericht 1995 zur Entwicklung von Wissenschaft und Technik. Mini-Delphi

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    In August 1993 the first German `Delphi Report on Developments in Science and Technology` was published. It was elaborated by the Fraunhofer Institute for System Engineering and Innovation Research (FhG-ISI) in cooperation with the Japanese National Institute of Science and Technology Policy (NISTEP). The `MINI-DELPHI` now completed by FhG-ISI, again in cooperation with NISTEP, is a further development of the Delphi approach in that it is more differentiated in its questions and assessment criteria than its predecessors. `MINI-DELPHI` is not intended as a comprehensive forecast on technology in general but rather focusses on key topics. Its emphasis is on technology demand and the relevance of technologies to social issues. Although the Mini-Delphi study was primarily aimed at further refining the methodology employed, it nevertheless contains a wealth of information and details on circumscript questions. The requisite database is provided by tables on the results of two inquiry rounds among Japanese and German experts. (orig./RHM) [Deutsch] Im August 1993 wurde der erste deutsche `Delphi-Bericht zur Entwicklung von Wissenschaft und Technik` veroeffentlicht. Er war vom Fraunhofer-Institut fuer Systemtechnik und Innovationsforschung (FhG-ISI) in Zusammenarbeit mit dem japanischen National Institute of Science and Technology Policy (NISTEP) erarbeitet worden. Mit dem jetzt vorliegenden `MINI-DELPHI` hat das FhG-ISI - wieder in Zusammenarbeit mit dem NISTEP - den Delphi-Ansatz fortentwickelt und sowohl hinsichtlich der Fragen als auch der Beurteilungskriterien weiter ausdifferenziert. `MINI-DELPHI` bezweckt keine umfassende Technologievorausschau, sondern konzentriert sich auf Schluesselthemen. Im Vordergrund steht der Gedanke des Technikbedarfs und die Relevanz fuer gesellschaftliche Fragestellungen. Obwohl die Mini-Delphi-Studie vorrangig der Weiterentwicklung der Methodik dient, enthaelt sich eine Fuelle von Informationen und Details zu Einzelfragen. Die im Bericht

  17. Graph based techniques for tag cloud generation

    DEFF Research Database (Denmark)

    Leginus, Martin; Dolog, Peter; Lage, Ricardo Gomes

    2013-01-01

    Tag cloud is one of the navigation aids for exploring documents. Tag cloud also link documents through the user defined terms. We explore various graph based techniques to improve the tag cloud generation. Moreover, we introduce relevance measures based on underlying data such as ratings or citat......Tag cloud is one of the navigation aids for exploring documents. Tag cloud also link documents through the user defined terms. We explore various graph based techniques to improve the tag cloud generation. Moreover, we introduce relevance measures based on underlying data such as ratings...

  18. A Shape Based Image Search Technique

    Directory of Open Access Journals (Sweden)

    Aratrika Sarkar

    2014-08-01

    Full Text Available This paper describes an interactive application we have developed based on shaped-based image retrieval technique. The key concepts described in the project are, imatching of images based on contour matching; iimatching of images based on edge matching; iiimatching of images based on pixel matching of colours. Further, the application facilitates the matching of images invariant of transformations like i translation ; ii rotation; iii scaling. The key factor of the system is, the system shows the percentage unmatched of the image uploaded with respect to the images already existing in the database graphically, whereas, the integrity of the system lies on the unique matching techniques used for optimum result. This increases the accuracy of the system. For example, when a user uploads an image say, an image of a mango leaf, then the application shows all mango leaves present in the database as well other leaves matching the colour and shape of the mango leaf uploaded.

  19. Verification of a Quality Management Theory: Using a Delphi Study

    OpenAIRE

    Ali Mohammad Mosadeghrad

    2013-01-01

    BackgroundA model of quality management called Strategic Collaborative Quality Management (SCQM) model was developed based on the quality management literature review, the findings of a survey on quality management assessment in healthcare organisations, semi-structured interviews with healthcare stakeholders, and a Delphi study on healthcare quality management experts. The purpose of this study was to verify the SCQM model. MethodsThe proposed model was further developed using feedback from ...

  20. A Delphi Investigation into Future Trends in E-Learning in Israel

    Science.gov (United States)

    Aharony, Noa; Bronstein, Jenny

    2014-01-01

    The purpose of this study is to investigate the views and opinions of e-learning experts regarding future trends in the e-learning arena. The Delphi technique was chosen as a method of study. This technique is an efficient and effective group communication process designed to systematically elicit judgments from experts in their selected area of…

  1. Search for technicolor with DELPHI

    CERN Document Server

    Abdallah, J.; Adam, W.; Adzic, P.; Albrecht, Z.; Alderweireld, T.; Alemany-Fernandez, R.; Allport, P.P.; Almehed, S.; Almendinger, T.; Amaldi, U.; Amapane, N.; Amato, S.; Anashkin, E.; Andreazza, A.; Andringa, S.; Anjos, N.; Antilogus, P.; Apel, W.D.; Arnoud, Y.; Ask, S.; Asman, B.; Augustin, J.E.; Augustinus, A.; Baillon, P.; Ballestrero, A.; Bambade, P.; Barbier, R.; Bardin, D.; Barker, G.J.; Baroncelli, A.; Baubillier, M.; Becks, K.H.; Begalli, M.; Behrmann, A.; Bellunato, T.; Benekos, N.; Benvenuti, A.; Berat, C.; Berntzon, L.; Bertrand, D.; Besancon, M.; Besson, N.; Bloch, D.; Blom, M.; Boyko, I.; Bonesini, M.; Boonekamp, M.; Booth, P.S.L.; Borisov, G.; Botner, O.; Bouquet, B.; Bowcock, T.J.V.; Bracko, M.; Brenner, R.; Brodet, E.; Brodzicka, J.; Bruckman, P.; Brunet, J.M.; Bugge, L.; Buschmann, P.; Calvi, M.; Camporesi, T.; Canale, V.; Carena, F.; Carimalo, C.; Castro, Nuno Filipe; Cavallo, F.; Chapkin, M.; Charpentier, P.; Checchia, P.; Chierici, R.; Shlyapnikov, P.; Chung, S.U.; Cieslik, K.; Collins, P.; Contri, R.; Cosme, G.; Cossutti, F.; Costa, M.J.; Crawley, H.B.; Crennell, D.; Cuevas, J.; D'Hondt, J.; Dalmau, J.; da Silva, T.; Da Silva, W.; Della Ricca, G.; De Angelis, A.; De Boer, W.; De Clercq, C.; De Lotto, B.; De Maria, N.; De Min, A.; De Paula, L.; Di Ciaccio, L.; Di Simone, A.; Doroba, K.; Drees, J.; Dris, M.; Eigen, G.; Ekelof, T.; Ellert, M.; Elsing, M.; Espirito Santo, M.C.; Fanourakis, G.; Fassouliotis, D.; Feindt, M.; Fernandez, J.; Ferrer, A.; Ferro, F.; Flagmeyer, U.; Foeth, H.; Fokitis, E.; Fulda-Quenzer, F.; Fuster, J.; Gandelman, M.; Garcia, C.; Gavillet, P.; Gazis, Evangelos; Gele, D.; Geralis, T.; Gokieli, R.; Golob, B.; Gomez-Ceballos, G.; Goncalves, P.; Gonzalez Caballero, I.; Graziani, E.; Grosdidier, G.; Grzelak, K.; Guy, J.; Haag, C.; Hahn, F.; Hahn, S.; Hallgren, A.; Hamacher, K.; Hamilton, K.; Hansen, J.; Haug, S.; Hauler, F.; Hedberg, V.; Hennecke, M.; Herr, H.; Holmgren, S.O.; Holt, P.J.; Houlden, M.A.; Hultqvist, K.; Yushchenko, O.; Jackson, John Neil; Jalocha, P.; Jarlskog, C.; Jarlskog, G.; Jarry, P.; Jeans, D.; Johansson, Erik Karl; Johansson, P.D.; Jonsson, P.; Joram, C.; Jungermann, L.; Kapusta, Frederic; Katsanevas, S.; Katsoufis, E.; Keranen, R.; Kernel, G.; Kersevan, B.P.; Kiiskinen, A.; King, B.T.; Kjaer, N.J.; Kluit, P.; Kokkinias, P.; Kourkoumelis, C.; Kuznetsov, O.; Krumshtein, Z.; Kucharczyk, M.; Kurowska, J.; Lamsa, J.; Leder, G.; Ledroit, Fabienne; Leinonen, L.; Leitner, R.; Lemonne, J.; Lenzen, G.; Lepeltier, V.; Lesiak, T.; Liebig, W.; Liko, D.; Lipniacka, A.; Lopes, J.H.; Lopez, J.M.; Lopez-Fernandez, R.; Loukas, D.; Lutz, P.; Lyons, L.; MacNaughton, J.; Malek, A.; Maltezos, S.; Mandl, F.; Marco, J.; Marco, R.; Marechal, B.; Margoni, M.; Marin, J.C.; Mariotti, C.; Markou, A.; Martinez-Rivero, C.; Masik, J.; Mastroyiannopoulos, N.; Matorras, F.; Matteuzzi, C.; Mazzucato, F.; Mazzucato, M.; McNulty, R.; Meroni, C.; Meyer, T.; Migliore, E.; Mitaroff, W.; Mjornmark, U.; Moa, T.; Moch, M.; Monig, Klaus; Monge, R.; Montenegro, J.; Moraes, D.; Moreno, S.; Morettini, P.; Muller, U.; Munich, K.; Mulders, M.; Mundim, L.; Murray, W.; Muryn, B.; Myatt, G.; Myklebust, T.; Nassiakou, M.; Navarria, F.; Nawrocki, K.; Nemecek, S.; Nicolaidou, R.; Niezurawski, P.; Nikolenko, M.; Nygren, A.; Oblakowska-Mucha, A.; Obraztsov, V.; Olshevsky, A.; Onofre, A.; Orava, R.; Osterberg, K.; Ouraou, A.; Oyanguren, A.; Paganoni, M.; Paiano, S.; Palacios, J.P.; Palka, H.; Papadopoulou, T.D.; Pape, L.; Parkes, C.; Parodi, F.; Parzefall, U.; Passeri, A.; Passon, O.; Peralta, L.; Perepelitsa, V.; Perrotta, A.; Petrolini, A.; Piedra, J.; Pieri, L.; Pierre, F.; Pimenta, M.; Piotto, E.; Podobnik, T.; Pol, M.E.; Polok, G.; Poropat, P.; Pozdnyakov, V.; Privitera, P.; Pukhaeva, N.; Pullia, A.; Rames, J.; Ramler, L.; Read, Alexander L.; Rebecchi, P.; Rehn, J.; Reid, D.; Reinhardt, R.; Renton, P.; Ryabchikov, D.; Richard, F.; Ridky, J.; Ripp-Baudot, Isabelle; Romero, A.; Ronchese, P.; Rosenberg, E.; Roudeau, P.; Rovelli, T.; Ruhlmann-Kleider, V.; Sadovsky, A.; Salmi, L.; Salt, J.; Savoy-Navarro, A.; Schwanda, C.; Schwering, B.; Schwickerath, U.; Segar, A.; Sekulin, R.; Siebel, M.; Sisakian, A.; Smadja, G.; Smirnova, O.; Sokolov, A.; Sopczak, A.; Sosnowski, R.; Spassoff, T.; Stanitzki, M.; Stocchi, A.; Strauss, J.; Stugu, B.; Szczekowski, M.; Szeptycka, M.; Szumlak, T.; Tabarelli, T.; Taffard, A.C.; Tegenfeldt, F.; Terranova, F.; Timmermans, Jan; Tinti, N.; Tkachev, L.; Tobin, M.; Todorova, S.; Tome, B.; Tonazzo, A.; Tortosa, P.; Travnicek, P.; Treille, D.; Tristram, G.; Trochimczuk, M.; Troncon, C.; Tyapkin, I.A.; Tyapkin, P.; Tzamarias, S.; Ullaland, O.; Uvarov, V.; Valenti, G.; Van Dam, Piet; Van Eldik, J.; Van Lysebetten, A.; Van Remortel, N.; Van Vulpen, I.; Vegni, G.; Veloso, F.; Venus, W.; Verbeure, F.; Verdier, P.; Verzi, V.; Vilanova, D.; Vitale, L.; Vrba, V.; Wahlen, H.; Washbrook, A.J.; Weiser, C.; Wicke, D.; Wickens, J.; Wilkinson, G.; Winter, M.; Witek, M.; Zalewska, A.; Zalewski, P.; Zavrtanik, D.; Zimine, N.I.; Zinchenko, A.; Zoller, P.; Zupan, M.

    2001-01-01

    Technicolor represents a viable alternative to the Higgs mechanism for generating gauge boson masses. Searches for technicolor particles $\\rho_T$ and $\\pi_T$ have been performed in the data collected by the DELPHI experiment at LEP at centre-of-mass energies between 192 and 208 GeV corresponding to an integrated luminosity of 452 pb$^{-1}$. Good agreement is observed with the SM expectation in all channels studied. This is translated into an excluded region in the $(M_{\\pi_T},M_{\\rho_T})$ plane. The $\\rho_T$ production is excluded for all $90 < M_{\\rho_T}<206.7$ GeV/c$^2$. Assuming a point-like interaction of the $\\pi_T$ with gauge bosons, an absolute lower limit on the charged $\\pi_T$ mass at 95\\% CL is set aLCERN EDS0

  2. Method of Serial Port Communication Program Design Based on Delphi%基于Delphi的串口通信程序设计方法

    Institute of Scientific and Technical Information of China (English)

    付华杰; 张遂南; 黄巾; 陈养平

    2007-01-01

    概述了串口通信在现代科技领域中的重要地位,介绍了Delphi作为一种面向对象的可视化的高级编程语言在串口通信编程中的优缺点.分析归纳了利用Delphi语言编写串口通信程序的四种方法并且简单阐述了SPCOMM在Delphi 环境中作为通信控件的一些属性、方法、函数和事件.最后以实践中编写的一个惯导计算机人机交互测试程序为实例,给出了在Delphi环境中利用SPCOMM控件实现串口通信时所遇到一些常见问题的解决方法、编写串口通信程序的大体框架结构和部分代码.

  3. 基于Delphi串行通信编程的原理和编程方法%Principle and Programming Method Based on Delphi Serial Communication Programming

    Institute of Scientific and Technical Information of China (English)

    李慧

    2012-01-01

    Mainly describes the field of industrial control in the most common data exchange interface RS-232 port communication principle and interface definition. Introduces the RS-232 commu- nication process using two basic calibration methods such as accumulative check and CRC calibration method, and describes the background thread forms of communication method. Also gives serial communication programming programming method and its communication process by usin~ Delphi pro~ramminz tool under Windows.%主要描述工业控制领域中最通用的数据交换接口RS-232口的通信原理及接口定义。介绍RS-232通信过程中采用的两种基本校验方法如累加校验和CRC校验的实现方法.并对后台多线程形式的通信方法进行描述。还给出Windows下采用Delphi编程工具进行串口通信编程的编程方法和通信流程。

  4. Searching for an Operational Definition of Frailty: A Delphi Method Based Consensus Statement. The Frailty Operative Definition-Consensus Conference Project

    Science.gov (United States)

    Féart, Catherine; Mann, Giovanni; Viña, Jose; Chatterji, Somnath; Chodzko-Zajko, Wojtek; Gonzalez-Colaço Harmand, Magali; Bergman, Howard; Carcaillon, Laure; Nicholson, Caroline; Scuteri, Angelo; Sinclair, Alan; Pelaez, Martha; Van der Cammen, Tischa; Beland, François; Bickenbach, Jerome; Delamarche, Paul; Ferrucci, Luigi; Fried, Linda P.; Gutiérrez-Robledo, Luis Miguel; Rockwood, Kenneth; Rodríguez Artalejo, Fernando; Serviddio, Gaetano; Vega, Enrique

    2013-01-01

    Background. There is no consensus regarding the definition of frailty for clinical uses. Methods. A modified Delphi process was used to attempt to achieve consensus definition. Experts were selected from different fields and organized into five Focus Groups. A questionnaire was developed and sent to experts in the area of frailty. Responses and comments were analyzed using a pre-established strategy. Statements with an agreement more than or equal to 80% were accepted. Results. Overall, 44% of the statements regarding the concept of frailty and 18% of the statements regarding diagnostic criteria were accepted. There was consensus on the value of screening for frailty and about the identification of six domains of frailty for inclusion in a clinical definition, but no agreement was reached concerning a specific set of clinical/laboratory biomarkers useful for diagnosis. Conclusions. There is agreement on the usefulness of defining frailty in clinical settings as well as on its main dimensions. However, additional research is needed before an operative definition of frailty can be established. PMID:22511289

  5. IMAGE ANALYSIS BASED ON EDGE DETECTION TECHNIQUES

    Institute of Scientific and Technical Information of China (English)

    纳瑟; 刘重庆

    2002-01-01

    A method that incorporates edge detection technique, Markov Random field (MRF), watershed segmentation and merging techniques was presented for performing image segmentation and edge detection tasks. It first applies edge detection technique to obtain a Difference In Strength (DIS) map. An initial segmented result is obtained based on K-means clustering technique and the minimum distance. Then the region process is modeled by MRF to obtain an image that contains different intensity regions. The gradient values are calculated and then the watershed technique is used. DIS calculation is used for each pixel to define all the edges (weak or strong) in the image. The DIS map is obtained. This help as priority knowledge to know the possibility of the region segmentation by the next step (MRF), which gives an image that has all the edges and regions information. In MRF model,gray level l, at pixel location i, in an image X, depends on the gray levels of neighboring pixels. The segmentation results are improved by using watershed algorithm. After all pixels of the segmented regions are processed, a map of primitive region with edges is generated. The edge map is obtained using a merge process based on averaged intensity mean values. A common edge detectors that work on (MRF) segmented image are used and the results are compared. The segmentation and edge detection result is one closed boundary per actual region in the image.

  6. $\\tau$ hadronic branching ratios at DELPHI

    CERN Document Server

    Humble, Stephen

    1999-01-01

    Using data collected in the DELPHI detector at LEP1, we have measured the exclusive branching ratios in modes with several hadrons. Both classical cuts and neural network methods have been performed to make the best use of the DELPHI neutral particle identification capability. In addition, a measurement of inclusive branching ratios for tau decays containing one or three charged particles has been performed. (4 refs).

  7. Rapid Tooling Technique Based on Stereolithograph Prototype

    Institute of Scientific and Technical Information of China (English)

    丁浩; 狄平; 顾伟生; 朱世根

    2001-01-01

    Rapid tooling technique based on the sterelithograph prototype is investigated. The epoxy tooling technological process was elucidated. It is analyzed in detail that the epoxy resin formula is easy to cast, curing process, and release agents. The transitional plaster model is also proposed. The mold to encrust mutual.inductors with epoxy and mold to inject plastic soapboxes was made with the technique The tooling needs very little time and cost, for the process is only to achieve the nice replica of the prototype. It is benefit for the trial and small batch of production.

  8. Language Based Techniques for Systems Biology

    DEFF Research Database (Denmark)

    Pilegaard, Henrik

    on the π calculus fragment of BioAmbients. In both cases the analyses compute very precise estimates of the temporal structure of the underlying pathways; hence they are applicable across a family of widely used bio-ware languages that descend from Milner’s Calculus of Communicating Systems. The presented...... calculi have similarly been used for the study of bio-chemical reactive systems. In this dissertation it is argued that techniques rooted in the theory and practice of programming languages, language based techniques if you will, constitute a strong basis for the investigation of models of biological...

  9. Wavelet-based technique for target segmentation

    Science.gov (United States)

    Sadjadi, Firooz A.

    1995-07-01

    Segmentation of targets embedded in clutter obtained by IR imaging sensors is one of the challenging problems in automatic target recognition (ATR). In this paper a new texture-based segmentation technique is presented that uses the statistics of 2D wavelet decomposition components of the lcoal sections of the image. A measure of statistical similarity is then used to segment the image and separate the target from the background. This technique is applied on a set of real sequential IR imagery and has shown to produce a high degree of segmentation accuracy across varying ranges.

  10. Optimal Siting of Charging Stations for Electric Vehicles Based on Fuzzy Delphi and Hybrid Multi-Criteria Decision Making Approaches from an Extended Sustainability Perspective

    Directory of Open Access Journals (Sweden)

    Huiru Zhao

    2016-04-01

    Full Text Available Optimal siting of electric vehicle charging stations (EVCSs is crucial to the sustainable development of electric vehicle systems. Considering the defects of previous heuristic optimization models in tackling subjective factors, this paper employs a multi-criteria decision-making (MCDM framework to address the issue of EVCS siting. The initial criteria for optimal EVCS siting are selected from extended sustainability theory, and the vital sub-criteria are further determined by using a fuzzy Delphi method (FDM, which consists of four pillars: economy, society, environment and technology perspectives. To tolerate vagueness and ambiguity of subjective factors and human judgment, a fuzzy Grey relation analysis (GRA-VIKOR method is employed to determine the optimal EVCS site, which also improves the conventional aggregating function of fuzzy Vlsekriterijumska Optimizacijia I Kompromisno Resenje (VIKOR. Moreover, to integrate the subjective opinions as well as objective information, experts’ ratings and Shannon entropy method are employed to determine combination weights. Then, the applicability of proposed framework is demonstrated by an empirical study of five EVCS site alternatives in Tianjin. The results show that A3 is selected as the optimal site for EVCS, and sub-criteria affiliated with environment obtain much more attentions than that of other sub-criteria. Moreover, sensitivity analysis indicates the selection results remains stable no matter how sub-criteria weights are changed, which verifies the robustness and effectiveness of proposed model and evaluation results. This study provides a comprehensive and effective method for optimal siting of EVCS and also innovates the weights determination and distance calculation for conventional fuzzy VIKOR.

  11. 基于Delphi的二次正交回归实验软件设计%Software Design of Quadratic Orthogonal Regression Experiment Based on Delphi

    Institute of Scientific and Technical Information of China (English)

    吴笛

    2011-01-01

    Orthogonal regression experiment is the important and efficient method of scientific experiments in the fields of materials science,chemical engineering and life science engineering with its especial advantages. However,its shortages are data processing complex,large computation,calculation process error and low efficiency. In this paper,through the experimental optimization of hot-dip aluminizing process parameters ,Delphi language is used to design two factors orthogonal regression experiment software. The software greatly improves the efficiency and accuracy of data processing,reduces errors and provides a reliable data processing platform for the similar experiment.%正交回归实验法以其独特的优势已成为包括材料科学、化学工程及生命科学工程领域在内的重要的、高效的科学实验方法.但是,正交回归实验法数据处理过程复杂,计算量大,计算过程极容易出错,效率低.通过热浸镀铝工艺参数的优化实验设计了基于Delphi语言的两因素二次正交回归实验软件,软件大幅度提高了数据处理效率和准确性,减少了误差,为类似实验提供了可靠的数据处理平台.

  12. MATRIX BASED INDEXING TECHNIQUE FOR VIDEO DATA

    Directory of Open Access Journals (Sweden)

    Devarj Saravanan

    2013-01-01

    Full Text Available Due to increasing the usage of media, the utilization of video play central role as it supports various applications. Video is the particular media which contains complex collection of objects like audio, motion, text, color and picture. Due to the rapid growth of this information video indexing process is mandatory for fast and effective retrieval. Many current indexing techniques fails to extract the needed image from the stored data set, based on the users query. Urgent attention in the field of video indexing and image retrieval is the need of the hour. Here a new matrix based indexing technique for image retrieval has been proposed. The proposed method provide better result, experimental results prove this.

  13. Interactive early warning technique based on SVDD

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    After reviewing current researches on early warning,it is found that"bad" data of some systems is not easy to obtain,which makes methods proposed by these researches unsuitable for monitored systems.An interactive early warning technique based on SVDD(support vector data description)is proposed to adopt"good" data as samples to overcome the difficulty in obtaining the"bad"data.The process consists of two parts:(1)A hypersphere is fitted on"good"data using SVDD.If the data object are outside the hypersphere,it would be taken as"suspicious";(2)A group of experts would decide whether the suspicious data is"bad"or"good",early warning messages would be issued according to the decisions.And the detailed process of implementation is proposed.At last,an experiment based on data of a macroeconomic system is conducted to verify the proposed technique.

  14. MATRIX BASED INDEXING TECHNIQUE FOR VIDEO DATA

    OpenAIRE

    2013-01-01

    Due to increasing the usage of media, the utilization of video play central role as it supports various applications. Video is the particular media which contains complex collection of objects like audio, motion, text, color and picture. Due to the rapid growth of this information video indexing process is mandatory for fast and effective retrieval. Many current indexing techniques fails to extract the needed image from the stored data set, based on the users query. Urgent attention in the fi...

  15. Application of Delphi-AHP methods to select the priorities of WEEE for recycling in a waste management decision-making tool.

    Science.gov (United States)

    Kim, Mincheol; Jang, Yong-Chul; Lee, Seunguk

    2013-10-15

    The management of waste electrical and electronic equipment (WEEE) or electronic waste (e-waste) has become a major issue of concern for solid waste communities due to the large volumes of waste being generated from the consumption of modern electrical and electronic products. In 2003, Korea introduced the extended producer responsibility (EPR) system to reduce the amount of electronic products to be disposed and to promote resource recovery from WEEE. The EPR currently regulates a total of 10 electrical and electronic products. This paper presents the results of the application of the Delphi method and analytical hierarchy process (AHP) modeling to the WEEE management tool in the policy-making process. Specifically, this paper focuses on the application of the Delphi-AHP technique to determine the WEEE priority to be included in the EPR system. Appropriate evaluation criteria were derived using the Delphi method to assess the potential selection and priority among electrical and electronic products that will be regulated by the EPR system. Quantitative weightings from the AHP model were calculated to identify the priorities of electrical and electronic products to be potentially regulated. After applying all the criteria using the AHP model, the results indicate that the top 10 target recycling products for the expansion of the WEEE list were found to be vacuum cleaners, electric fans, rice cookers, large freezers, microwave ovens, water purifiers, air purifiers, humidifiers, dryers, and telephones in order from the first to last. The proposed Delphi-AHP method can offer a more efficient means of selecting WEEE than subjective assessment methods that are often based on professional judgment or limited available data. By providing WEEE items to be regulated, the proposed Delphi-AHP method can eliminate uncertainty and subjective assessment and enable WEEE management policy-makers to identify the priority of potential WEEE. More generally, the work performed in this

  16. Multiview video codec based on KTA techniques

    Science.gov (United States)

    Seo, Jungdong; Kim, Donghyun; Ryu, Seungchul; Sohn, Kwanghoon

    2011-03-01

    Multi-view video coding (MVC) is a video coding standard developed by MPEG and VCEG for multi-view video. It showed average PSNR gain of 1.5dB compared with view-independent coding by H.264/AVC. However, because resolutions of multi-view video are getting higher for more realistic 3D effect, high performance video codec is needed. MVC adopted hierarchical B-picture structure and inter-view prediction as core techniques. The hierarchical B-picture structure removes the temporal redundancy, and the inter-view prediction reduces the inter-view redundancy by compensated prediction from the reconstructed neighboring views. Nevertheless, MVC has inherent limitation in coding efficiency, because it is based on H.264/AVC. To overcome the limit, an enhanced video codec for multi-view video based on Key Technology Area (KTA) is proposed. KTA is a high efficiency video codec by Video Coding Expert Group (VCEG), and it was carried out for coding efficiency beyond H.264/AVC. The KTA software showed better coding gain than H.264/AVC by using additional coding techniques. The techniques and the inter-view prediction are implemented into the proposed codec, which showed high coding gain compared with the view-independent coding result by KTA. The results presents that the inter-view prediction can achieve higher efficiency in a multi-view video codec based on a high performance video codec such as HEVC.

  17. Reconstruction of B hadron decays at DELPHI

    CERN Document Server

    Salmi, Laura Tiina Maria

    2006-01-01

    This thesis describes three analyses related to heavy quarks. The analysis with the largest impact is the extraction of parameters of heavy quark decays using the lepton energy spectrum and the hadronic mass spectrum in semileptonic B decays. The extraction of the parameters allows to test the framework used to theoretically describe the decay of heavy mesons, and more accurate knowledge of the parameter values results in greater accuracy in the determination of the element |Vcb| of the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing matrix. The determination described in this thesis is important, since it is so far the only one where the full lepton energy spectrum has been used. The other determinations are based on using only a part of the spectrum. The first extraction of the parameters in the kinetic mass scheme was based on the statistical moments of the lepton energy spectrum and hadronic mass spectrum measured using the data collected at delphi. In the second analysis, the angular distribution of fragmen...

  18. The Oracle of Delphi Encore!

    CERN Document Server

    2000-01-01

    After the great success of the performance last winter the company Mimescope and CERN stage again The Oracle of Delphi! A performance with acrobatics, mime and music played in the heart of CERN laboratory. Kept in suspense between dream and reality inside the fertile imagination of the brilliant English physicist Paul Dirac, the audience dives into the fascinating world of antimatter. The performance will be staged in the PS Soutn Hall, close to LEAR, where the first atoms of antihydrogen were produced. After each performance there will be a short tour around the hall. From 11 January 2001 to 04 February 2001 every Thursday (EXCEPT 1st February!), Friday and Saturday at 20.00 h, and Sundays at 18.00 h. Purchase of tickets from Forum Meyrin, open Monday to Saturday from 14.00h to 18.00h, tel: 022/989.34.34, or through the Billetel system tel: 0901.553.901 (1.50 CHF per minute). On the days of the event last minute tickets can still be purchased at the Reception desk of bldg 33 on CERN site. Please arrive ...

  19. The Oracle of Delphi Encore!

    CERN Multimedia

    2001-01-01

    After the great success of the performance last winter the company Mimescope and CERN stage again The Oracle of Delphi! A performance with acrobatics, mime and music played in the heart of CERN laboratory. Kept in suspense between dream and reality inside the fertile imagination of the brilliant English physicist Paul Dirac, the audience dives into the fascinating world of antimatter. The performance will be staged in the PS Soutn Hall, close to LEAR, where the first atoms of antihydrogen were produced. After each performance there will be a short tour around the hall. - From 11 January 2001 to 04 February 2001 every Thursday (EXCEPT 1st February!), Friday and Saturday at 20.00 h, and Sundays at 18.00 h. - Purchase of tickets from Forum Meyrin, open Monday to Saturday from 14.00h to 18.00h, tel: 022/989.34.34, or through the Billetel system tel: 0901.553.901 (1.50 CHF per minute). On the days of the event last minute tickets can still be purchased at the Reception desk of bldg 33 on CERN site. Please arrive ...

  20. 基于Delphi排序改进的AHP-Fuzzy人机布局虚拟评价%Virtual assessment of ergonomic layout based on AHP-Fuzzy improved by Delphi sequence

    Institute of Scientific and Technical Information of China (English)

    刘昕; 余隋怀; 王淑侠; 初建杰; 王宁; 赵明磊

    2015-01-01

    基于Delphi专家排序,对传统AHP-Fuzzy算法从问卷数据处理和比较矩阵建立两个方向进行了改进,使该算法更适合Jack虚拟环境下的人机布局评价。侧重于工作空间中操纵器的人机布局虚拟评价。为解决目前人因工程分析工具几乎不考虑人在特定环境下的心理与生理感知的不足问题,将Jack人因分析工具分析出的客观数据与Delphi法相结合。在数据处理过程中,鉴于传统AHP-Fuzzy对评价指标两两对比时的整数赋值,不能很好地反映人类判断的模糊性,基于Delphi排序对AHP-Fuzzy进行了改进,可节约专家时间,并避免对判断矩阵进行一系列一致性检验与调整,减少部分计算量。使用飞机驾驶舱操纵器的人机布局虚拟评价进行了实例分析与验证。%Based on Delphi sequence, AHP-Fuzzy is improved from processing the figures of surveys and the form of building matrices, so that the algorithm is more suitable for the ergonomic layout virtual assessment focusing on facilities largely. To solve the problem that ergonomics analysis tools don’t contain the human beings’physiological feelings in the specific environment, the figures analyzed by Jack are analyzed again combined with the data using Delphi to make up for the deficiency. In the traditional AHP-Fuzzy, an evaluation index is an integral multiple of another about the important yardstick, so that it can’t show the fuzziness of human judgments. Not only can the improved AHP-Fuzzy overcome this disadvantage, it also can save time of experts and reduce the number of consistency checks. The light business airplane is taken for example to verify the feasibility of the ergonomic layout virtual assessment.

  1. Workplace Issues in Extension--A Delphi Study of Extension Educators

    Science.gov (United States)

    Kroth, Michael; Peutz, Joey

    2011-01-01

    Using the Delphi technique, expert Extension educators identified and prioritized those workplace issues they believe will be the most important to attract, motivate, and retain Extension educators/agents over the next 5 to 7 years. Obtaining and then utilizing a talented, highly motivated workforce during a period when many will be retiring will…

  2. Competencies for Leaders of Volunteers During the Next Decade: A National Delphi Study.

    Science.gov (United States)

    Boyd, Barry L.

    Using the Delphi technique, a nationwide panel of experts identified 33 competencies that volunteer administrators (VAs) will need during the next decade and categorized them into these five constructs: organizational leadership; systems leadership; organizational culture; personal skills; and management skills. Twelve barriers to acquiring the…

  3. Idea Generation and Exploration: Benefits and Limitations of the Policy Delphi Research Method

    Science.gov (United States)

    Franklin, Kathy K.; Hart, Jan K.

    2007-01-01

    Researchers use the policy Delphi method to explore a complex topic with little historical context that requires expert opinion to fully understand underlying issues. The benefit of this research technique is the use of experts who have more timely information than can be gleamed from extant literature. Additionally, those experts place…

  4. The Policy Delphi: A Method for Identifying Intended and Unintended Consequences of Educational Policy

    Science.gov (United States)

    Manley, R. Adam

    2013-01-01

    This article highlights a rarely utilized but effective technique for identifying intended and unintended consequences of past or current policy or policy change. The author guides the reader through the process of identifying potential participants, contacting participants, developing the policy Delphi instrument, and analyzing the findings by…

  5. The Semiconductor Industry and Emerging Technologies: A Study Using a Modified Delphi Method

    Science.gov (United States)

    Jordan, Edgar A.

    2010-01-01

    The purpose of this qualitative descriptive study was to determine what leaders in the semiconductor industry thought the future of computing would look like and what emerging materials showed the most promise to overcome the current theoretical limit of 10 nanometers for silicon dioxide. The researcher used a modified Delphi technique in two…

  6. The Delphi Method Online: Medical Expert Consensus Via the Internet

    OpenAIRE

    Cam, Kenneth M.; McKnight, Patrick E.; Doctor, Jason N.

    2002-01-01

    Delphi is an expert consensus method. The theory behind the Delphi method is that the interaction of experts may lead to a reduction in individual bias. We have developed software that carries out all aspects of the Delphi method via the Internet. The Delphi method online consists of three components: 1) authorship, 2) interactive polling, and 3) reporting/results. We hope that researchers use this tool in future medical expert systems.

  7. Knowledge-based techniques in software engineering

    Energy Technology Data Exchange (ETDEWEB)

    Jairam, B.N.; Agarwal, A.; Emrich, M.L.

    1988-05-04

    Recent trends in software engineering research focus on the incorporation of AI techniques. The feasibility of an overlap between AI and software engineering is examined. The benefits of merging the two fields are highlighted. The long-term goal is to automate the software development process. Some projects being undertaken towards the attainment of this goal are presented as examples. Finally, research on the Oak Ridge Reservation aimed at developing a knowledge-based software project management aid is presented. 25 refs., 1 tab.

  8. Consensus principles for wound care research obtained using a Delphi process.

    Science.gov (United States)

    Serena, Thomas; Bates-Jensen, Barbara; Carter, Marissa J; Cordrey, Renee; Driver, Vickie; Fife, Caroline E; Haser, Paul B; Krasner, Diane; Nusgart, Marcia; Smith, Adrianne P S; Snyder, Robert J

    2012-01-01

    Too many wound care research studies are poorly designed, badly executed, and missing crucial data. The objective of this study is to create a series of principles for all stakeholders involved in clinical or comparative effectiveness research in wound healing. The Delphi approach was used to reach consensus, using a web-based survey for survey participants and face-to-face conferences for expert panel members. Expert panel (11 members) and 115 wound care researchers (respondents) drawn from 15 different organizations. Principles were rated for validity using 5-point Likert scales and comments. A 66% response rate was achieved in the first Delphi round from the 173 invited survey participants. The response rate for the second Delphi round was 46%. The most common wound care researcher profile was age 46-55 years, a wound care clinic setting, and >10 years' wound care research and clinical experience. Of the initial 17 principles created by the panel, only four principles were not endorsed in Delphi round 1 with another four not requiring revision. Of the 14 principles assessed by respondents in the second Delphi round, only one principle was not endorsed and it was revised; four other principles also needed revision based on the use of specific words or contextual use. Of the 19 final principles, three included detailed numbered lists. With the wide variation in design, conduct, and reporting of wound care research studies, it is hoped that these principles will improve the standard and practice of care in this field.

  9. Artificial Intelligence based technique for BTS placement

    Science.gov (United States)

    Alenoghena, C. O.; Emagbetere, J. O.; Aibinu, A. M.

    2013-12-01

    The increase of the base transceiver station (BTS) in most urban areas can be traced to the drive by network providers to meet demand for coverage and capacity. In traditional network planning, the final decision of BTS placement is taken by a team of radio planners, this decision is not fool proof against regulatory requirements. In this paper, an intelligent based algorithm for optimal BTS site placement has been proposed. The proposed technique takes into consideration neighbour and regulation considerations objectively while determining cell site. The application will lead to a quantitatively unbiased evaluated decision making process in BTS placement. An experimental data of a 2km by 3km territory was simulated for testing the new algorithm, results obtained show a 100% performance of the neighbour constrained algorithm in BTS placement optimization. Results on the application of GA with neighbourhood constraint indicate that the choices of location can be unbiased and optimization of facility placement for network design can be carried out.

  10. Modelling consensus building in Delphi practices for participated transport planning

    CERN Document Server

    Pira, Michela Le; Ignaccolo, Matteo; Pluchino, Alessandro

    2015-01-01

    In this study a consensus building process based on a combination of Analytic Hierarchy Process (AHP) and Delphi method is presented and applied to the decision-making process about alternative policy measures to promote cycling mobility. An agent-based model is here used to reproduce the same process of convergence of opinions, with the aim to understand the role of network topology, stakeholder influence and other sensitive variables on the emergence of consensus. It can be a useful tool for decision-makers to guide them in planning effective participation processes.

  11. Assessment of critical thinking: a Delphi study.

    Science.gov (United States)

    Paul, Sheila A

    2014-11-01

    Nurse educators are responsible for preparing nurses who critically analyze patient information and provide meaningful interventions in today's complex health care system. By using the Delphi research method, this study, utilized the specialized and experiential knowledge of Certified Nurse Educators. This original Delphi research study asked Certified Nurse Educators how to assess the critical-thinking ability of nursing students in the clinical setting. The results showed that nurse educators need time, during the clinical experience, to accurately assess each individual nursing student. This study demonstrated the need for extended student clinical time, and a variety of clinical learning assessment tools.

  12. Maxillofacial injury severity score system based on Delphi and AHP methods%基于层次分析法和专家咨询法建立颌面部损伤严重度评价方法

    Institute of Scientific and Technical Information of China (English)

    薄斌; 程洋; 何黎升; 刘彦普; 赵晋龙; 周树夏

    2008-01-01

    目的 通过层次分析法(analytic hierarchy process,AHP)和专家咨询法(Delphi technique)建立颌面部损伤严重度的评价方法.方法 采用AHP法将颌面部损伤按解剖和功能两个方面分层建立指标体系,对每个指标按损伤程度分级.应用Delphi法对评价指标进行两两比较评分,求出评价指标的组合权重,将其与评价指标的程度分级相结合,即获得了颌面部损伤严重度的评价方法.选取60例颌面部创伤患者,按照所建立的方法分别对解剖损伤和功能损伤进行损伤严重度评分,将评分结果进行相关性检验.结果 建立了颌面部损伤严重度评价系统MFISS,MFISS=∑mi=1Ci.Pi(Ci为第i评价目标的组合权重系数,Pi为第i评价目标的损伤程度).解剖损伤和功能损伤严重度评分之间具有相关性(r=0.674,P<0.01).结论 Delphi法和AHP法相结合是建立颌面部损伤严重度评价的有效方法.

  13. Hybrid intelligent system for Sale Forecasting using Delphi and adaptive Fuzzy Back-Propagation Neural Networks

    Directory of Open Access Journals (Sweden)

    Attariuas Hicham

    2012-12-01

    Full Text Available ales forecasting is one of the most crucial issues addressed in business. Control and evaluation of future sales still seem concerned both researchers and policy makers and managers of companies. this research propose an intelligent hybrid sales forecasting system Delphi-FCBPN sales forecast based on Delphi Method, fuzzy clustering and Back-propagation (BP Neural Networks with adaptive learning rate. The proposed model is constructed to integrate expert judgments, using Delphi method, in enhancing the model of FCBPN. Winter’s Exponential Smoothing method will be utilized to take the trend effect into consideration. The data for this search come from an industrial company that manufactures packaging. Analyze of results show that the proposed model outperforms other three different forecasting models in MAPE and RMSE measures.

  14. Determining e-Portfolio Elements in Learning Process Using Fuzzy Delphi Analysis

    Science.gov (United States)

    Mohamad, Syamsul Nor Azlan; Embi, Mohamad Amin; Nordin, Norazah

    2015-01-01

    The present article introduces the Fuzzy Delphi method results obtained in the study on determining e-Portfolio elements in learning process for art and design context. This method bases on qualified experts that assure the validity of the collected information. In particular, the confirmation of elements is based on experts' opinion and…

  15. Measuring organisational readiness for patient engagement (MORE): an international online Delphi consensus study.

    Science.gov (United States)

    Oostendorp, Linda J M; Durand, Marie-Anne; Lloyd, Amy; Elwyn, Glyn

    2015-02-14

    Widespread implementation of patient engagement by organisations and clinical teams is not a reality yet. The aim of this study is to develop a measure of organisational readiness for patient engagement designed to monitor and facilitate a healthcare organisation's willingness and ability to effectively implement patient engagement in healthcare. The development of the MORE (Measuring Organisational Readiness for patient Engagement) scale was guided by Weiner's theory of organisational readiness for change. Weiner postulates that an organisation's readiness is determined by both the willingness and ability to implement the change (i.e. in this context: patient engagement). A first version of the scale was developed based on a literature search and evaluation of pre-existing tools. We invited multi-disciplinary stakeholders to participate in a two-round online Delphi survey. Respondents were asked to rate the importance of each proposed item, and to comment on the proposed domains and items. Second round participants received feedback from the first round and were asked to re-rate the importance of the revised, new and unchanged items, and to provide comments. The first version of the scale contained 51 items divided into three domains: (1) Respondents' characteristics; (2) the organisation's willingness to implement patient engagement; and (3) the organisation's ability to implement patient engagement. 131 respondents from 16 countries (health care managers, policy makers, clinicians, patients and patient representatives, researchers, and other stakeholders) completed the first survey, and 72 of them also completed the second survey. During the Delphi process, 34 items were reworded, 8 new items were added, 5 items were removed, and 18 were combined. The scale's instructions were revised. The final version of MORE totalled 38 items; 5 on stakeholders, 13 on an organisation's willingness to implement, and 20 on an organisation's ability to implement patient

  16. The DELPHI detector at CERN's LEP collider

    CERN Multimedia

    1998-01-01

    DELPHI (DEtector with Lepton, Photon and Hadron Identification), is a detector for e+e- physics, with special emphasis on powerful particle identification , three-dimensional information, high granularity and precise vertex determination. It is installed at LEP (Large Electron and Positron collider) at CERN where it has operated since 1989.

  17. The Delphi Method in Rehabilitation Counseling Research

    Science.gov (United States)

    Vazquez-Ramos, Robinson; Leahy, Michael; Estrada Hernandez, Noel

    2007-01-01

    Rehabilitation researchers have found in the application of the Delphi method a more sophisticated way of obtaining consensus from experts in the field on certain matters. The application of this research methodology has affected and certainly advanced the body of knowledge of the rehabilitation counseling practice. However, the rehabilitation…

  18. 基于Delphi的自定义预览报表的设计与实现%Design and realization of userdefined preview form based on Delphi

    Institute of Scientific and Technical Information of China (English)

    宋宝卫; 耿雪春; 陈仁鹏

    2001-01-01

    A kind of designing method is proposed in the context of Delphi to realize previ ew form by using Quickrep and QRpreview components in designing the size and the scale of form\\|expanded and form\\|contracted. The detailed steps include creati ng form, using preview components, programming in the event o f OnMouseDown. Userdefined preview form is modifying the default format of pr eview form of Delphi, a valid supplement to realizing special form in Delphi.%阐述了在Delphi 环境下开发自定义预览报表的设计方法,即利用Delphi提供的Quickrep和Q Rpreview控件,通过设定预览报表的尺寸大小和缩放比例等来生成预览报表.编程实现自定 义预览报表的具体步骤包括创建预览报表、使用预览控制元件、在OnMouseDown事件中编写 程序代码等.自定义预览报表改变了Delphi缺省的预览报表格式,是Delphi中实现特殊格式 报表的有效补充.

  19. Operationalising elaboration theory for simulation instruction design: a Delphi study.

    Science.gov (United States)

    Haji, Faizal A; Khan, Rabia; Regehr, Glenn; Ng, Gary; de Ribaupierre, Sandrine; Dubrowski, Adam

    2015-06-01

    The aim of this study was to assess the feasibility of incorporating the Delphi process within the simplifying conditions method (SCM) described in elaboration theory (ET) to identify conditions impacting the complexity of procedural skills for novice learners. We generated an initial list of conditions impacting the complexity of lumbar puncture (LP) from key informant interviews (n = 5) and a literature review. Eighteen clinician-educators from six different medical specialties were subsequently recruited as expert panellists. Over three Delphi rounds, these panellists rated: (i) their agreement with the inclusion of the simple version of the conditions in a representative ('epitome') training scenario, and (ii) how much the inverse (complex) version increases LP complexity for a novice. Cronbach's α-values were used to assess inter-rater agreement. All panellists completed Rounds 1 and 2 of the survey and 17 completed Round 3. In Round 1, Cronbach's α-values were 0.89 and 0.94 for conditions that simplify and increase LP complexity, respectively; both values increased to 0.98 in Rounds 2 and 3. With the exception of 'high CSF (cerebral spinal fluid) pressure', panellists agreed with the inclusion of all conditions in the simplest (epitome) training scenario. Panellists rated patient movement, spinal anatomy, patient cooperativeness, body habitus, and the presence or absence of an experienced assistant as having the greatest impact on the complexity of LP. This study demonstrated the feasibility of using expert consensus to establish conditions impacting the complexity of procedural skills, and the benefits of incorporating the Delphi method into the SCM. These data can be used to develop and sequence simulation scenarios in a progressively challenging manner. If the theorised learning gains associated with ET are realised, the methods described in this study may be applied to the design of simulation training for other procedural and non-procedural skills

  20. Development of a School Nursing Research Agenda in Florida: A Delphi Study

    Science.gov (United States)

    Gordon, Shirley C.; Barry, Charlotte D.

    2006-01-01

    Research is important to the image, visibility, and viability of school nursing. Each state school nursing association should evaluate member commitment to school nursing research based on their unique set of financial, educational, and organizational resources. A 3-round Delphi study was conducted in which Florida school nurses identified…

  1. Development of Preliminary Remission Criteria for Gout Using Delphi and 1000Minds® Consensus Exercises

    DEFF Research Database (Denmark)

    de Lautour, Hugh; Taylor, William J; Adebajo, Ade

    2016-01-01

    OBJECTIVES: The aim of this study was to establish consensus for potential remission criteria for use in clinical trials of gout. METHODS: Experts (n=88) in gout from multiple countries were invited to participate in a web-based questionnaire study. Three rounds of Delphi consensus exercises were...

  2. Biomedical and psychosocial factors influencing transtibial prosthesis fit : a Delphi survey among health care professionals

    NARCIS (Netherlands)

    Baars, Erwin C.; Schrier, Ernst; Geertzen, Jan H.; Dijkstra, Pieter U.

    2015-01-01

    Purpose: We aimed to reach consensus among professionals caring for prosthesis users, on definitions of biomedical and psychosocial factors, to assess their influence on fit of transtibial prosthesis and to identify new factors. Method: A three-round, internet-based, Delphi survey was conducted amon

  3. Biomedical and psychosocial factors influencing transtibial prosthesis fit : a Delphi survey among health care professionals

    NARCIS (Netherlands)

    Baars, Erwin C.; Schrier, Ernst; Geertzen, Jan H.; Dijkstra, Pieter U.

    2015-01-01

    Purpose: We aimed to reach consensus among professionals caring for prosthesis users, on definitions of biomedical and psychosocial factors, to assess their influence on fit of transtibial prosthesis and to identify new factors. Method: A three-round, internet-based, Delphi survey was conducted amon

  4. Developing content standards for teaching research skills using a delphi method

    NARCIS (Netherlands)

    Schaaf, M.F. van der; Stokking, K.M.; Verloop, N.

    2008-01-01

    The increased attention for teacher assessment and current educational reforms ask for procedures to develop adequate content standards. For the development of content standards on teaching research skills, a Delphi method based on stakeholders’ judgments has been designed and tested. In three round

  5. Designing Graduate-Level Plant Breeding Curriculum: A Delphi Study of Private Sector Stakeholder Opinions

    Science.gov (United States)

    Miller, Jane K.; Repinski, Shelby L.; Hayes, Kathryn N.; Bliss, Frederick A.; Trexler, Cary J.

    2011-01-01

    A broad-based survey using the Delphi method was conducted to garner current information from private sector stakeholders and build consensus opinions supporting key ideas for enhancing plant breeder education and training. This study asked respondents to suggest and rate topics and content they deemed most important to plant breeding graduate…

  6. 高职教师绩效考核体系设计——基于AHP和Delphi Method的综合运用%Design of Performance Evaluation System of Higher Vocational School Teachers Based on the Comprehensive Application of AHP and Delphi Method

    Institute of Scientific and Technical Information of China (English)

    张星

    2007-01-01

    高职教师绩效考核的核心是教师工作业绩细化指标的设计,它的设计与教学改革相关性最大,基于AHP和Delphi Method的综合运用,从一级指标的权重看,教师科研工作业绩明显大于教学工作业绩;从二级指标看,教学研究与改革的重要性正逐步被认识;教学工作虽是衡量工作业绩的第一要素,但其内容已经丰富化,不再局限于课堂教学;教学政策的评定也更加多样化.

  7. Dynamics-based Nondestructive Structural Monitoring Techniques

    Science.gov (United States)

    2012-06-21

    in the practice of non- destructive evaluation ( NDE ) and structural health monitoring (SHM). Guided wave techniques have several advantages over...conventional bulk wave ultrasonic NDE /SHM techniques. Some of these advantages are outlined in Table I. However, in addition to the advantages of...PVDF transducers for SHM applications with controlled guided wave modes and frequencies [7]. Wilcox used EMATs with circular coils in a guided wave

  8. DCT-based cyber defense techniques

    Science.gov (United States)

    Amsalem, Yaron; Puzanov, Anton; Bedinerman, Anton; Kutcher, Maxim; Hadar, Ofer

    2015-09-01

    With the increasing popularity of video streaming services and multimedia sharing via social networks, there is a need to protect the multimedia from malicious use. An attacker may use steganography and watermarking techniques to embed malicious content, in order to attack the end user. Most of the attack algorithms are robust to basic image processing techniques such as filtering, compression, noise addition, etc. Hence, in this article two novel, real-time, defense techniques are proposed: Smart threshold and anomaly correction. Both techniques operate at the DCT domain, and are applicable for JPEG images and H.264 I-Frames. The defense performance was evaluated against a highly robust attack, and the perceptual quality degradation was measured by the well-known PSNR and SSIM quality assessment metrics. A set of defense techniques is suggested for improving the defense efficiency. For the most aggressive attack configuration, the combination of all the defense techniques results in 80% protection against cyber-attacks with PSNR of 25.74 db.

  9. Nasal base narrowing: the combined alar base excision technique.

    Science.gov (United States)

    Foda, Hossam M T

    2007-01-01

    To evaluate the role of the combined alar base excision technique in narrowing the nasal base and correcting excessive alar flare. The study included 60 cases presenting with a wide nasal base and excessive alar flaring. The surgical procedure combined an external alar wedge resection with an internal vestibular floor excision. All cases were followed up for a mean of 32 (range, 12-144) months. Nasal tip modification and correction of any preexisting caudal septal deformities were always completed before the nasal base narrowing. The mean width of the external alar wedge excised was 7.2 (range, 4-11) mm, whereas the mean width of the sill excision was 3.1 (range, 2-7) mm. Completing the internal excision first resulted in a more conservative external resection, thus avoiding any blunting of the alar-facial crease. No cases of postoperative bleeding, infection, or keloid formation were encountered, and the external alar wedge excision healed with an inconspicuous scar that was well hidden in the depth of the alar-facial crease. Finally, the risk of notching of the alar rim, which can occur at the junction of the external and internal excisions, was significantly reduced by adopting a 2-layered closure of the vestibular floor (P = .01). The combined alar base excision resulted in effective narrowing of the nasal base with elimination of excessive alar flare. Commonly feared complications, such as blunting of the alar-facial crease or notching of the alar rim, were avoided by using simple modifications in the technique of excision and closure.

  10. A Comparative Study of Three Vibration Based Damage Assessment Techniques

    DEFF Research Database (Denmark)

    Kirkegaard, Poul Henning; Rytter, A.

    Three different vibration based damage assessment techniques have been compared. One of the techniques uses the ratios between changes in experimentally and theoretically estimated natural frequencies, respectively, to locate a damage. The second technique relies on updating of an FEM based...

  11. A Delphi forecast of technology in education

    Science.gov (United States)

    Robinson, B. E.

    1973-01-01

    The results are reported of a Delphi forecast of the utilization and social impacts of large-scale educational telecommunications technology. The focus is on both forecasting methodology and educational technology. The various methods of forecasting used by futurists are analyzed from the perspective of the most appropriate method for a prognosticator of educational technology, and review and critical analysis are presented of previous forecasts and studies. Graphic responses, summarized comments, and a scenario of education in 1990 are presented.

  12. Flood alert system based on bayesian techniques

    Science.gov (United States)

    Gulliver, Z.; Herrero, J.; Viesca, C.; Polo, M. J.

    2012-04-01

    The problem of floods in the Mediterranean regions is closely linked to the occurrence of torrential storms in dry regions, where even the water supply relies on adequate water management. Like other Mediterranean basins in Southern Spain, the Guadalhorce River Basin is a medium sized watershed (3856 km2) where recurrent yearly floods occur , mainly in autumn and spring periods, driven by cold front phenomena. The torrential character of the precipitation in such small basins, with a concentration time of less than 12 hours, produces flash flood events with catastrophic effects over the city of Malaga (600000 inhabitants). From this fact arises the need for specific alert tools which can forecast these kinds of phenomena. Bayesian networks (BN) have been emerging in the last decade as a very useful and reliable computational tool for water resources and for the decision making process. The joint use of Artificial Neural Networks (ANN) and BN have served us to recognize and simulate the two different types of hydrological behaviour in the basin: natural and regulated. This led to the establishment of causal relationships between precipitation, discharge from upstream reservoirs, and water levels at a gauging station. It was seen that a recurrent ANN model working at an hourly scale, considering daily precipitation and the two previous hourly values of reservoir discharge and water level, could provide R2 values of 0.86. BN's results slightly improve this fit, but contribute with uncertainty to the prediction. In our current work to Design a Weather Warning Service based on Bayesian techniques the first steps were carried out through an analysis of the correlations between the water level and rainfall at certain representative points in the basin, along with the upstream reservoir discharge. The lower correlation found between precipitation and water level emphasizes the highly regulated condition of the stream. The autocorrelations of the variables were also

  13. [Application of Delphi method in traditional Chinese medicine clinical research].

    Science.gov (United States)

    Bi, Ying-fei; Mao, Jing-yuan

    2012-03-01

    In recent years, Delphi method has been widely applied in traditional Chinese medicine (TCM) clinical research. This article analyzed the present application situation of Delphi method in TCM clinical research, and discussed some problems presented in the choice of evaluation method, classification of observation indexes and selection of survey items. On the basis of present application of Delphi method, the author analyzed the method on questionnaire making, selection of experts, evaluation of observation indexes and selection of survey items. Furthermore, the author summarized the steps of application of Delphi method in TCM clinical research.

  14. The small angle tile calorimeter in the DELPHI experiment

    CERN Document Server

    Alvsvaag, S J; Barreira, G; Benvenuti, Alberto C; Bigi, M; Bonesini, M; Bozzo, M; Camporesi, T; Carling, H; Cassio, V; Castellani, L; Cereseto, R; Chignoli, F; Della Ricca, G; Dharmasiri, D R; Espirito-Santo, M C; Falk, E; Fenyuk, A; Ferrari, P; Gamba, D; Giordano, V; Guz, Yu; Guerzoni, M; Gumenyuk, S A; Hedberg, V; Jarlskog, G; Karyukhin, A N; Klovning, A; Konoplyannikov, A K; Kronkvist, I J; Lanceri, L; Leoni, R; Maeland, O A; Maio, A; Mazza, R; Migliore, E; Navarria, Francesco Luigi; Negri, P; Nossum, B; Obraztsov, V F; Onofre, A; Paganoni, M; Pegoraro, M; Peralta, L; Petrovykh, L P; Pimenta, M; Poropat, P; Prest, M; Read, A L; Romero, A; Shalanda, N A; Simonetti, L; Skaali, T B; Stugu, B; Terranova, F; Tomé, B; Torassa, E; Trapani, P P; Verardi, M G; Vallazza, E; Vlasov, E; Zaitsev, A

    1999-01-01

    The {\\bf S}mall angle {\\bf TI}le {\\bf C}alorimeter ({\\bf STIC}) provides calorimetric coverage in the very forward region of the DELPHI experiment at the CERN LEP collider. The structure of the calorimeters, built with a so-called ``shashlik'' technique, gives a perfectly hermetic calorimeter and still allows for the insertion of tracking detectors within the sampling structure to measure the direction of the showering particle. A charged-particle veto system, composed of two scintillator layers, makes it possible to trigger on single photon events and provides e-$\\gamma$ separat ion. Results are presented from the extensive studies of these detectors in the CERN testbeams prior to installation and of the detector performance at LEP.

  15. Defining a Bobath clinical framework - A modified e-Delphi study.

    Science.gov (United States)

    Vaughan-Graham, Julie; Cott, Cheryl

    2016-11-01

    To gain consensus within the expert International Bobath Instructors Training Association (IBITA) on a Bobath clinical framework on which future efficacy studies can be based. A three-round modified e-Delphi approach was used with 204 full members of the IBITA. Twenty-one initial statements were generated from the literature. Consensus was defined a priori as at least 80% of the respondents with a level of agreement on a Likert scale of 4 or 5. The Delphi questionnaire for each round was available online for two weeks. Summary reports and subsequent questionnaires were posted within four weeks. Ninety-four IBITA members responded, forming the Delphi panel, of which 68 and 66 responded to Rounds Two and Three, respectively. The 21 initial statements were revised to 17 statements and five new statements in Round Two in which eight statements were accepted and two statements were eliminated. Round Three presented 12 revised statements, all reaching consensus. The Delphi was successful in gaining consensus on a Bobath clinical framework in a geographically diverse expert association, identifying the unique components of Bobath clinical practice. Discussion throughout all three Rounds revolved primarily around the terminology of atypical and compensatory motor behavior and balance.

  16. Cost estimation: An expert-opinion approach. [cost analysis of research projects using the Delphi method (forecasting)

    Science.gov (United States)

    Buffalano, C.; Fogleman, S.; Gielecki, M.

    1976-01-01

    A methodology is outlined which can be used to estimate the costs of research and development projects. The approach uses the Delphi technique a method developed by the Rand Corporation for systematically eliciting and evaluating group judgments in an objective manner. The use of the Delphi allows for the integration of expert opinion into the cost-estimating process in a consistent and rigorous fashion. This approach can also signal potential cost-problem areas. This result can be a useful tool in planning additional cost analysis or in estimating contingency funds. A Monte Carlo approach is also examined.

  17. Proposed recommended procedure for the use of OAEs in hearing conservation: A Delphi exercise: Presentation

    CSIR Research Space (South Africa)

    Edwards, A

    2013-10-01

    Full Text Available are to prevent NIHL need early identification The audiogram = subjective method that relies on co-operation from the worker Alternative or adjunct approach is an objective testing method - OAEs Metropolitan Police exemption from using HPDs Slide... 5 © CSIR 2010 Slide 5 Delphi technique Methodology • a widely used and accepted method • has been used in various fields of study such as program planning, needs assessment, policy determination, and resource utilization...

  18. Policies and Practices for Recruiting, Training, and Evaluating High-Quality Substitute Teachers: a Delphi Study

    OpenAIRE

    2009-01-01

    Effective substitute teachers are needed in classrooms across the United States; however, little attention is given to the policies and practices that school districts use to recruit, train, and evaluate them. The challenge of finding quality substitute teachers, despite the absence of definitive policies and practices to guide them, continues to be a problem nationwide. The purpose of this study was to identify, using a three-round Delphi technique (Linstone & Turoff, 1975), policies and...

  19. Path Based Mapping Technique for Robots

    Directory of Open Access Journals (Sweden)

    Amiraj Dhawan

    2013-05-01

    Full Text Available The purpose of this paper is to explore a new way of autonomous mapping. Current systems using perception techniques like LAZER or SONAR use probabilistic methods and have a drawback of allowing considerable uncertainty in the mapping process. Our approach is to break down the environment, specifically indoor, into reachable areas and objects, separated by boundaries, and identifying their shape, to render various navigable paths around them. This is a novel method to do away with uncertainties, as far as possible, at the cost of temporal efficiency. Also this system demands only minimum and cheap hardware, as it relies on only Infra-Red sensors to do the job.

  20. PIE: A Dynamic Failure-Based Technique

    Science.gov (United States)

    Voas, Jeffrey M.

    1990-01-01

    This paper presents a dynamic technique for statistically estimating three program characteristics that affect a program's computational behavior: (1) the probability that a particular section of a program is executed, (2) the probability that the particular section affects the data state, and (3) the probability that a data state produced by that section has an effect on program output. These three characteristics can be used to predict whether faults are likely to be uncovered by software testing. Index Terms: Software testing, data state, fault, failure, testability. 1 Introduction

  1. Design of ATmega88 and Delphi-based biped walking robots%基于ATmega88和Delphi的双足竞步机器人设计

    Institute of Scientific and Technical Information of China (English)

    叶孝璐; 俞立; 陈军统

    2014-01-01

    This paper is concerned with the design of a biped walking robot. In this system, PCB board and CDS5401 servo is designed as the main material, the robot control system is developed based on ATmega88, the robot's movement sequences is determined through the bionics principle. The control system is simple, stable, reliable, and also has the very good human-computer interaction interface and expanded functionality. Finally, the developed robot is used in the Contest of Biped Walking Robot Games in China, and achieved excellent results.%采用自主设计的 PCB板和 CDS5401舵机设计了一种双足竞步机器人,开发了基于ATmega88的机器人控制系统,基于仿生学原理的步态规划确定了机器人的运动序列。所设计的控制系统不仅操作简单,运行稳定可靠,而且人机交互界面友好,再扩展性强。最后,将所开发的机器人运用于中国机器人大赛双足竞步机器人比赛,取得了优异成绩。

  2. Comparison of Vibration-Based Damage Assessment Techniques

    DEFF Research Database (Denmark)

    Kirkegaard, Poul Henning; Rytter, A.

    1995-01-01

    Three different vibration-based damage assessment techniques have been compared. One of the techniques uses the ratios between changes in experimentally and theoretically estimated natural frequencies, respectively, to locate a damage. The second technique relies on updating of a finite element m...

  3. Curriculum development for a national cardiotocography education program: a Delphi survey to obtain consensus on learning objectives.

    Science.gov (United States)

    Thellesen, Line; Hedegaard, Morten; Bergholt, Thomas; Colov, Nina P; Hoegh, Stinne; Sorensen, Jette L

    2015-08-01

    To define learning objectives for a national cardiotocography (CTG) education program based on expert consensus. A three-round Delphi survey. One midwife and one obstetrician from each maternity unit in Denmark were appointed based on CTG teaching experience and clinical obstetric experience. Following national and international guidelines, the research group determined six topics as important when using CTG: fetal physiology, equipment, indication, interpretation, clinical management, and communication/responsibility. In the first Delphi round, participants listed one to five learning objectives within the predefined topics. Responses were analyzed by a directed approach to content analysis. Phrasing was modified in accordance with Bloom's taxonomy. In the second and third Delphi rounds, participants rated each objective on a five-point relevance scale. Consensus was predefined as objectives with a mean rating value of ≥ 3. A prioritized list of CTG learning objectives. A total of 42 midwives and obstetricians from 21 maternity units were invited to participate, of whom 26 completed all three Delphi rounds, representing 18 maternity units. The final prioritized list included 40 objectives. The highest ranked objectives emphasized CTG interpretation and clinical management. The lowest ranked objectives emphasized fetal physiology. Mean ratings of relevance ranged from 3.15 to 5.00. National consensus on CTG learning objectives was achieved using the Delphi methodology. This was an initial step in developing a valid CTG education program. A prioritized list of objectives will clarify which topics to emphasize in a CTG education program. © 2015 Nordic Federation of Societies of Obstetrics and Gynecology.

  4. Deposition of growth layer groups in dentine tissue of captive common dolphins Delphinus delphis

    Directory of Open Access Journals (Sweden)

    Sinéad Murphy

    2014-07-01

    Full Text Available Knowledge of age structure and longevity (maximum age are essential for modelling marine mammal population dynamics. Estimation of age in common dolphins (Delphinus spp. is primarily based on counting Growth Layer Groups (GLGs in the dentine of thin, decalcified and stained sections of teeth. An annual incremental deposition rate was validated for Delphinus spp. 30-years ago through the use of tetracycline. However, it is not known if the pulp cavity becomes occluded in older individuals or GLGs continue to be deposited in dentine tissue. To investigate the deposition of GLGs in dentine tissue, teeth samples were obtained during the necropsies of two short-beaked common dolphins (Delphinus delphis that were held in captivity for 31 and 33 years in New Zealand. Individuals were captured together in Hawkes Bay, North Island, New Zealand and classified as juveniles based on physical appearance. Teeth were processed in two ageing laboratories, using four different bone decalcifiers, two sectioning techniques incorporating the use of both a freezing microtome (-20°C and paraffin microtome, and two different stains. An age was estimated for one of the dolphins, in line with that proposed based on estimated age at capture and period in captivity. However, a hypomineralised area was observed in the dentine tissue close to the pulp cavity of the second individual, preventing estimation of maximum age. The presence and structure of this anomaly is explored further within the study.

  5. Reference Materials in LIS Instruction: A Delphi Study

    Science.gov (United States)

    Rabina, Debbie

    2013-01-01

    This paper presents the results of a Delphi study conducted over a two-month period in 2011. The purpose of the study was to identify reference sources that should be covered in basic reference courses taught in LIS programs in the United States. The Delphi method was selected for its appropriateness in soliciting expert opinions and assessing the…

  6. Career and Technical Education at a Crossroads: A Delphi Study

    Science.gov (United States)

    Cutright, Michael W.

    2011-01-01

    Career and technical education in the United States has reached a critical juncture. A three round Delphi method was used to determine a consensus on the future events of career and technical education to better inform educational decision makers. Forty-one individual experts in the field were invited to serve as panelists for the Delphi study and…

  7. Modified Policy-Delphi study for exploring obesity prevention priorities

    Science.gov (United States)

    Haynes, Emily; Palermo, Claire; Reidlinger, Dianne P

    2016-01-01

    Introduction Until now, industry and government stakeholders have dominated public discourse about policy options for obesity. While consumer involvement in health service delivery and research has been embraced, methods which engage consumers in health policy development are lacking. Conflicting priorities have generated ethical concern around obesity policy. The concept of ‘intrusiveness’ has been applied to policy decisions in the UK, whereby ethical implications are considered through level of intrusiveness to choice; however, the concept has also been used to avert government regulation to address obesity. The concept of intrusiveness has not been explored from a stakeholder's perspective. The aim is to investigate the relevance of intrusiveness and autonomy to health policy development, and to explore consensus on obesity policy priorities of under-represented stakeholders. Methods and analysis The Policy-Delphi technique will be modified using the James Lind Alliance approach to collaborative priority setting. A total of 60 participants will be recruited to represent three stakeholder groups in the Australian context: consumers, public health practitioners and policymakers. A three-round online Policy-Delphi survey will be undertaken. Participants will prioritise options informed by submissions to the 2009 Australian Government Inquiry into Obesity, and rate the intrusiveness of those proposed. An additional round will use qualitative methods in a face-to-face discussion group to explore stakeholder perceptions of the intrusiveness of options. The novelty of this methodology will redress the balance by bringing the consumer voice forward to identify ethically acceptable obesity policy options. Ethics and dissemination Ethical approval was granted by the Bond University Health Research Ethics Committee. The findings will inform development of a conceptual framework for analysing and prioritising obesity policy options, which will be relevant

  8. The base line problem in DLTS technique

    OpenAIRE

    G. Couturier; Thabti, A.; Barrière, A.S.

    1989-01-01

    This paper describes a solution to suppress the base line problem in DLTS spectroscopy using a lock-in amplifier. The method has been used to characterize deep levels in a GaAs Schottky diode. Comparison with the classical method based on the use of a capacitance meter in the differential mode is established. The electric field dependence of the DLTS signal in a weakly doped semiconductor is also reported and proves the efficiency of the method. Finally, the data process is discussed.

  9. b-tagging in DELPHI at LEP

    CERN Document Server

    Abdallah, J; Adam, W; Adye, T; Adzic, P; Albrecht, T; Alderweireld, T; Alemany-Fernandez, R; Allmendinger, T; Allport, P P; Almehed, S; Amaldi, Ugo; Amapane, N; Amato, S; Anashkin, E; Andreazza, A; Andringa, S; Anjos, N; Antilogus, P; Apel, W D; Arnoud, Y; Ask, S; Åsman, B; Augustin, J E; Augustinus, A; Baillon, Paul; Ballestrero, A; Bambade, P; Barbier, R; Bardin, Dimitri Yuri; Barker, G; Baroncelli, A; Bates, M; Battaglia, Marco; Baubillier, M; Becks, K H; Begalli, M; Behrmann, A; Benekos, N C; Benvenuti, Alberto C; Bérat, C; Berggren, M; Berntzon, L; Bertrand, D; Besançon, M; Besson, N; Bibby, J; Biffi, P; Bloch, D; Blom, M; Bonesini, M; Boonekamp, M; Booth, P S L; Borisov, G; Botner, O; Bouquet, B; Bowcock, T J V; Boyko, I; Bracko, M; Branchini, P; Brenner, R; Brodet, E; Brückman, P; Brunet, J M; Bugge, L; Buschmann, P; Caccia, M; Calvi, M; Camporesi, T; Canale, V; Carena, F; Castro, N; Cavallo, F R; Chabaud, V; Chapkin, M M; Charpentier, P; Checchia, P; Chierici, R; Shlyapnikov, P; Chudoba, J; Chung, S U; Cieslik, K; Collins, P; Contri, R; Cosme, G; Cossutti, F; Costa, M J; Couchot, F; Crawley, B; Crennell, D J; Cuevas-Maestro, J; D'Almagne, B; D'Hondt, J; Dalmau, J; Da Silva, T; Da Silva, W; Della Ricca, G; De Angelis, A; de Boer, Wim; De Clercq, C; De Lotto, B; De Maria, N; De Min, A; De Paula, L S; Di Ciaccio, Lucia; Dijkstra, H; Di Simone, A; Doroba, K; Drees, J; Dris, M; Eigen, G; Ekelöf, T J C; Ellert, M; Elsing, M; Espirito-Santo, M C; Fanourakis, G K; Fassouliotis, D; Feindt, M; Fernández, J; Ferrer, A; Ferro, F; Flagmeyer, U; Föth, H; Fokitis, E; Fulda-Quenzer, F; Fuster, J A; Gandelman, M; García, C; Gavillet, P; Gazis, E N; Geralis, T; Gokieli, R; Golob, B; Gómez-Cadenas, J J; Gómez-Ceballos, G; Gonçalves, P; Graziani, E; Grosdidier, G; Grzelak, K; Guy, J; Haag, C; Hallgren, A; Hamacher, K; Hamilton, K; Hansen, J; Haug, S; Hauler, F; Hedberg, V; Hennecke, M; Hernando, J A; Herr, H; Heuser, J M; Holmgren, S O; Holt, P J; Houlden, M A; Hultqvist, K; Jackson, J N; Jalocha, P; Jarlskog, C; Jarlskog, G; Jarry, P; Jeans, D; Johansson, E K; Johansson, P D; Jonsson, P; Joram, C; Jungermann, L; Kapusta, F; Karlsson, M; Katsanevas, S; Katsoufis, E C; Keränen, R; Kernel, G; Kersevan, Borut P; Kiiskinen, A P; King, B T; Kjaer, N J; Kluit, P; Kokkinias, P; Kourkoumelis, C; Kuznetsov, O; Krumshtein, Z; Kucharczyk, M; Kucewicz, W; Kurowska, J; Lamsa, J; Leder, G; Ledroit, F; Leinonen, L; Leitner, R; Lemonne, J; Lepeltier, V; Lesiak, T; Liebig, W; Liko, D; Lipniacka, A; Lopes, J H; López, J M; Loukas, D; Lutz, P; Lyons, L; MacNaughton, J; Malek, A; Maltezos, S; Mandl, F; Marco, J; Marco, R; Maréchal, B; Margoni, M; Marin, J C; Mariotti, C; Markou, A; Martínez-Rivero, C; Martínez-Vidal, F; Masik, J; Mastroyiannopoulos, N; Matorras, F; Matteuzzi, C; Mazzucato, F; Mazzucato, M; McNulty, R; Meroni, C; Meyer, W T; Migliore, E; Mitaroff, W A; Mjörnmark, U; Moa, T; Moch, M; Mönig, K; Monge, R; Montenegro, J; Moraes, D; Moreno, S; Morettini, P; Müller, U; Münich, K; Mulders, M; Mundim, L; Murray, W; Muryn, B; Myatt, Gerald; Myklebust, T; Nassiakou, M; Navarria, Francesco Luigi; Nawrocki, K; Nicolaidou, R; Niezurawski, P; Nikolenko, M; Nomerotski, A; Norman, A; Nygren, A; Oblakowska-Mucha, A; Obraztsov, V F; Olshevskii, A G; Onofre, A; Orava, Risto; Österberg, K; Ouraou, A; Oyanguren, A; Paganoni, M; Paiano, S; Palacios, J P; Palka, H; Papadopoulou, T D; Pape, L; Parkes, C; Parodi, F; Parzefall, U; Passeri, A; Passon, O; Peralta, L; Perepelitsa, V F; Perrotta, A; Petrolini, A; Piedra, J; Pieri, L; Pierre, F; Pimenta, M; Piotto, E; Podobnik, T; Poireau, V; Pol, M E; Polok, G; Poropat, P; Pozdnyakov, V; Pukhaeva, N; Pullia, Antonio; Rames, J; Ramler, L; Read, A; Rebecchi, P; Rehn, J; Reid, D; Reinhardt, R; Renton, P B; Richard, F; Rídky, J; Rivero, M; Rodríguez, D; Romero, A; Ronchese, P; Rosenberg, E I; Roudeau, Patrick; Rovelli, T; Ruhlmann-Kleider, V; Ryabtchikov, D; Sadovskii, A; Salmi, L; Salt, J; Savoy-Navarro, A; Schwickerath, U; Segar, A; Sekulin, R L; Siebel, M; Sissakian, A N; Smadja, G; Smirnova, O G; Sokolov, A; Sopczak, A; Sosnowski, R; Spassoff, Tz; Stanitzki, M; Stavitski, I; Stocchi, A; Strauss, J; Stugu, B; Szczekowski, M; Szeptycka, M; Szumlak, T; Tabarelli de Fatis, T; Taffard, A C; Tegenfeldt, F; Timmermans, J; Tinti, N; Tkatchev, L G; Tobin, M; Todorovova, S; Tomaradze, A G; Tomé, B; Tonazzo, A; Tortosa, P; Travnicek, P; Treille, D; Trischuk, W; Tristram, G; Trochimczuk, M; Troncon, C; Turluer, M L; Tyapkin, I A; Tyapkin, P; Tyndel, M; Tzamarias, S; Uvarov, V; Valenti, G; van Dam, P; Van Eldik, J; Van Lysebetten, A; Van Remortel, N; Van Vulpen, I B; Vegni, G; Veloso, F; Venus, W A; Verbeure, F; Verdier, P; Verzi, V; Vilanova, D; Vitale, L; Vrba, V; Wahlen, H; Washbrook, A J; Weilhammer, Peter; Weiser, C; Wicke, D; Wickens, J H; Wilkinson, G; Winter, M; Witek, M; Yushchenko, O P; Zalewska-Bak, A; Zalewski, Piotr; Zavrtanik, D; Zimin, N I; Zinchenko, A I; Zupan, M

    2004-01-01

    The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which relies mostly on the vertex detector. Additional information, such as the mass of particles associated to a secondary vertex, significantly improves the selection efficiency and the background suppression. The paper describes various discriminating variables used for the tagging and the procedure of their combination. In addition, applications of b-tagging to some physics analyses, which depend crucially on the performance and reliability of b-tagging, are described briefly.

  10. An Authentication Technique Based on Classification

    Institute of Scientific and Technical Information of China (English)

    李钢; 杨杰

    2004-01-01

    We present a novel watermarking approach based on classification for authentication, in which a watermark is embedded into the host image. When the marked image is modified, the extracted watermark is also different to the original watermark, and different kinds of modification lead to different extracted watermarks. In this paper, different kinds of modification are considered as classes, and we used classification algorithm to recognize the modifications with high probability. Simulation results show that the proposed method is potential and effective.

  11. Huffman-based code compression techniques for embedded processors

    KAUST Repository

    Bonny, Mohamed Talal

    2010-09-01

    The size of embedded software is increasing at a rapid pace. It is often challenging and time consuming to fit an amount of required software functionality within a given hardware resource budget. Code compression is a means to alleviate the problem by providing substantial savings in terms of code size. In this article we introduce a novel and efficient hardware-supported compression technique that is based on Huffman Coding. Our technique reduces the size of the generated decoding table, which takes a large portion of the memory. It combines our previous techniques, Instruction Splitting Technique and Instruction Re-encoding Technique into new one called Combined Compression Technique to improve the final compression ratio by taking advantage of both previous techniques. The instruction Splitting Technique is instruction set architecture (ISA)-independent. It splits the instructions into portions of varying size (called patterns) before Huffman coding is applied. This technique improves the final compression ratio by more than 20% compared to other known schemes based on Huffman Coding. The average compression ratios achieved using this technique are 48% and 50% for ARM and MIPS, respectively. The Instruction Re-encoding Technique is ISA-dependent. It investigates the benefits of reencoding unused bits (we call them reencodable bits) in the instruction format for a specific application to improve the compression ratio. Reencoding those bits can reduce the size of decoding tables by up to 40%. Using this technique, we improve the final compression ratios in comparison to the first technique to 46% and 45% for ARM and MIPS, respectively (including all overhead that incurs). The Combined Compression Technique improves the compression ratio to 45% and 42% for ARM and MIPS, respectively. In our compression technique, we have conducted evaluations using a representative set of applications and we have applied each technique to two major embedded processor architectures

  12. FDI and Accommodation Using NN Based Techniques

    Science.gov (United States)

    Garcia, Ramon Ferreiro; de Miguel Catoira, Alberto; Sanz, Beatriz Ferreiro

    Massive application of dynamic backpropagation neural networks is used on closed loop control FDI (fault detection and isolation) tasks. The process dynamics is mapped by means of a trained backpropagation NN to be applied on residual generation. Process supervision is then applied to discriminate faults on process sensors, and process plant parameters. A rule based expert system is used to implement the decision making task and the corresponding solution in terms of faults accommodation and/or reconfiguration. Results show an efficient and robust FDI system which could be used as the core of an SCADA or alternatively as a complement supervision tool operating in parallel with the SCADA when applied on a heat exchanger.

  13. Feasibility of multi-sector policy measures that create activity-friendly environments for children: results of a Delphi study

    Directory of Open Access Journals (Sweden)

    Aarts Marie-Jeanne

    2011-12-01

    Full Text Available Abstract Background Although multi-sector policy is a promising strategy to create environments that stimulate physical activity among children, little is known about the feasibility of such a multi-sector policy approach. The aims of this study were: to identify a set of tangible (multi-sector policy measures at the local level that address environmental characteristics related to physical activity among children; and to assess the feasibility of these measures, as perceived by local policy makers. Methods In four Dutch municipalities, a Delphi study was conducted among local policy makers of different policy sectors (public health, sports, youth and education, spatial planning/public space, traffic and transportation, and safety. In the first Delphi round, respondents generated a list of possible policy measures addressing three environmental correlates of physical activity among children (social cohesion, accessibility of facilities, and traffic safety. In the second Delphi round, policy makers weighted different feasibility aspects (political feasibility, cultural/community acceptability, technical feasibility, cost feasibility, and legal feasibility and assessed the feasibility of the policy measures derived from the first round. The third Delphi round was aimed at reaching consensus by feedback of group results. Finally, one overall feasibility score was calculated for each policy measure. Results Cultural/community acceptability, political feasibility, and cost feasibility were considered most important feasibility aspects. The Delphi studies yielded 16 feasible policy measures aimed at physical and social environmental correlates of physical activity among children. Less drastic policy measures were considered more feasible, whereas environmental policy measures were considered less feasible. Conclusions This study showed that the Delphi technique can be a useful tool in reaching consensus about feasible multi-sector policy measures. The

  14. Feasibility of multi-sector policy measures that create activity-friendly environments for children: results of a Delphi study.

    Science.gov (United States)

    Aarts, Marie-Jeanne; Schuit, Albertine J; van de Goor, Ien Am; van Oers, Hans Am

    2011-12-15

    Although multi-sector policy is a promising strategy to create environments that stimulate physical activity among children, little is known about the feasibility of such a multi-sector policy approach. The aims of this study were: to identify a set of tangible (multi-sector) policy measures at the local level that address environmental characteristics related to physical activity among children; and to assess the feasibility of these measures, as perceived by local policy makers. In four Dutch municipalities, a Delphi study was conducted among local policy makers of different policy sectors (public health, sports, youth and education, spatial planning/public space, traffic and transportation, and safety). In the first Delphi round, respondents generated a list of possible policy measures addressing three environmental correlates of physical activity among children (social cohesion, accessibility of facilities, and traffic safety). In the second Delphi round, policy makers weighted different feasibility aspects (political feasibility, cultural/community acceptability, technical feasibility, cost feasibility, and legal feasibility) and assessed the feasibility of the policy measures derived from the first round. The third Delphi round was aimed at reaching consensus by feedback of group results. Finally, one overall feasibility score was calculated for each policy measure. Cultural/community acceptability, political feasibility, and cost feasibility were considered most important feasibility aspects. The Delphi studies yielded 16 feasible policy measures aimed at physical and social environmental correlates of physical activity among children. Less drastic policy measures were considered more feasible, whereas environmental policy measures were considered less feasible. This study showed that the Delphi technique can be a useful tool in reaching consensus about feasible multi-sector policy measures. The study yielded several feasible policy measures aimed at

  15. Segmentation of Color Images Based on Different Segmentation Techniques

    Directory of Open Access Journals (Sweden)

    Purnashti Bhosale

    2013-03-01

    Full Text Available In this paper, we propose an Color image segmentation algorithm based on different segmentation techniques. We recognize the background objects such as the sky, ground, and trees etc based on the color and texture information using various methods of segmentation. The study of segmentation techniques by using different threshold methods such as global and local techniques and they are compared with one another so as to choose the best technique for threshold segmentation. Further segmentation is done by using clustering method and Graph cut method to improve the results of segmentation.

  16. Earthquake Analysis of Structure by Base Isolation Technique in SAP

    OpenAIRE

    T. Subramani; J. Jothi

    2014-01-01

    This paper presents an overview of the present state of base isolation techniques with special emphasis and a brief on other techniques developed world over for mitigating earthquake forces on the structures. The dynamic analysis procedure for isolated structures is briefly explained. The provisions of FEMA 450 for base isolated structures are highlighted. The effects of base isolation on structures located on soft soils and near active faults are given in brief. Simple case s...

  17. Development of Evaporative Cooling Air-Conditioning's Inquire System Based on Delphi%基于Delphi的蒸发冷却空调查询系统开发

    Institute of Scientific and Technical Information of China (English)

    蒋婧; 狄育慧

    2011-01-01

    对Delphi数据库做了简单的介绍,掌握各种控件的功能属性,进行合理的界面设计,并且创建有效地数据库数据源,通过对数据库的管理等实现用户需要的新软件。简述了蒸发冷却空调技术应用。搭建出了关于Delphi和蒸发冷却的应用平台;设计出了关于气象资料、方案选择、设备资料的用户界面;实现了气象资料的查询功能。%In this paper, a brief introduction is given about Delphi database. We know functions of various attributes, design rational interface, and create effective database data source, database management, require for new software through the implementation of user. Briefly introduce application of evaporative cooling air conditioning technology. We has been built Delphi and evaporative cooling on the application platform; design on the meteorological data, options, equipment, user interface data; implement the query function of meteorological data.

  18. Array-based techniques for fingerprinting medicinal herbs

    Directory of Open Access Journals (Sweden)

    Xue Charlie

    2011-05-01

    Full Text Available Abstract Poor quality control of medicinal herbs has led to instances of toxicity, poisoning and even deaths. The fundamental step in quality control of herbal medicine is accurate identification of herbs. Array-based techniques have recently been adapted to authenticate or identify herbal plants. This article reviews the current array-based techniques, eg oligonucleotides microarrays, gene-based probe microarrays, Suppression Subtractive Hybridization (SSH-based arrays, Diversity Array Technology (DArT and Subtracted Diversity Array (SDA. We further compare these techniques according to important parameters such as markers, polymorphism rates, restriction enzymes and sample type. The applicability of the array-based methods for fingerprinting depends on the availability of genomics and genetics of the species to be fingerprinted. For the species with few genome sequence information but high polymorphism rates, SDA techniques are particularly recommended because they require less labour and lower material cost.

  19. Inverter-based circuit design techniques for low supply voltages

    CERN Document Server

    Palani, Rakesh Kumar

    2017-01-01

    This book describes intuitive analog design approaches using digital inverters, providing filter architectures and circuit techniques enabling high performance analog circuit design. The authors provide process, supply voltage and temperature (PVT) variation-tolerant design techniques for inverter based circuits. They also discuss various analog design techniques for lower technology nodes and lower power supply, which can be used for designing high performance systems-on-chip.    .

  20. Utilizing and Adapting the Delphi Method for Use in Qualitative Research

    OpenAIRE

    Shane R. Brady

    2015-01-01

    The Delphi method is a pragmatic research method created in the 1950s by researchers at the RAND Corporation for use in policy making, organizational decision making, and to inform direct practices. While the Delphi method has been regularly utilized in mixed methods studies, far fewer studies have been completed using the Delphi method for qualitative research. Despite the utility of the Delphi method in social science research, little guidance is provided for using the Delphi in the context...

  1. A Delphi study to curriculum modifying through the application of the course objective and competencies.

    Science.gov (United States)

    Taymoori, Parvaneh; Moshki, Mahdi

    2014-01-01

    In order to incorporate new knowledge, skills and emerging concepts from dynamic fields of public health into ongoing courses reform of curriculums sounds necessary. Accordingly, this study was performed to modify health education curriculum of public health undergraduate level. Using Delphi technique, 18 health education lecturers from Tehran, Tabriz, Yazd, Shiraz, Gonabad, Ghazvin, Avhvaz and Kurdistan Universities Medical of Sciences based on their expertize in health education with PhD degree as scientific members, also 5 heads of departments according to working at health deputy for at least more than 5 years were asked during three rounds through panel experts to suggest and rate topics they deemed most important to graduate public health experts and curricula related to the areas of knowledge and skills in health education course. The experts suggested that health enhancing behaviors and reduce health risks, advocate health, behavior change theories and developing a framework are key objects in the curriculum. Much more new topical outlines were related to previous course. Skills rated as important included need assessment and health communication. The most evaluators suggested that adding a practicum unit to two theory units will be helpful. The results from our survey suggested that changes in the course definition including new course objectives, topical outlines, and required skills were deemed important by the lecturers and were appropriately integrated into the health education course curriculum. The new curriculum should be evaluated constantly to seek and provide experiences that will best prepare students to meet challenges as a health educator.

  2. New measurements of $V_{ab}$ and $V_{cb}$ with DELPHI at LEP

    CERN Document Server

    Battaglia, Marco

    1999-01-01

    The V/sub ab/ and V/sub cb/ elements in the CKM mixing matrix have been measured by inclusive reconstruction of semileptonic B decays with the DELPHI data recorded at LEP, at square root energies around the Z/sup 0/ peak, from 1992 to 1995. The measurement of V /sub ub is based on a novel technique that uses the reconstructed mass of the secondary hadronic system produced in semileptonic B decays. Since b to uL nu transitions are characterized by hadronic masses smaller than those of D mesons produced in b to cL nu transitions, events with a reconstructed value of M/sub X/ below the D mass have been selected. V/sub ab//V/sub cb has been extracted by a fit to the shape of the spectrum of the lepton energy in the B rest frame and found to be 0.104+or-0.012 (stat) +or-0.015 (syst) +or-0.009 (model). A now precise measurement of V/sub cb has been obtained from the extrapolation to zero recoil of the differential rate of B/sup 0/ to D*/sup +/L nu decays. These have been reconstructed by inclusively tagging the sof...

  3. The DELPHI Silicon Tracker in the global pattern recognition

    CERN Document Server

    Elsing, M

    2000-01-01

    ALEPH and DELPHI were the first experiments operating a silicon vertex detector at LEP. During the past 10 years of data taking the DELPHI Silicon Tracker was upgraded three times to follow the different tracking requirements for LEP 1 and LEP 2 as well as to improve the tracking performance. Several steps in the development of the pattern recognition software were done in order to understand and fully exploit the silicon tracker information. This article gives an overview of the final algorithms and concepts of the track reconstruction using the Silicon Tracker in DELPHI.

  4. Development of a core-stability model: a delphi approach.

    Science.gov (United States)

    Majewski-Schrage, Tricia; Evans, Todd A; Ragan, Brian

    2014-05-01

    Despite widespread acceptance, there is currently no consensus on the definition, components, and the specific techniques most appropriate to measure and quantify core stability. To develop a comprehensive core-stability model addressing its definition, components, and assessment techniques. Delphi technique. University laboratory. 15 content experts from United States and Canada, representing a variety of disciplines. The authors distributed an open-ended questionnaire pertaining to a core-stability definition, components, and assessment techniques specific to each expert. They collected data over 2 rounds of telephone interviews. They concluded data collection once a consensus was achieved that equated with 51% agreement among respondents. The authors developed a working definition of core stability as the ability to achieve and sustain control of the trunk region at rest and during precise movement. Eighty-three percent of the experts considered the definition satisfactory. Therefore, the definition was accepted. Furthermore, the experts agreed that muscles (14/15 = 93.3%) and neuromuscular control (8/12 = 66.7%) were components of core stability. Assessment techniques were identified and inconsistencies were highlighted; however, no consensus was established. A consensus core-stability definition was created and 2 components were identified. However, of the initial definitions provided by the experts, no 2 were identical, which revealed the inconsistencies among experts and the importance of this study. Nonetheless, the goal of obtaining a consensus definition was obtained. Although a consensus for the assessment techniques of core stability could not be reached, it was a beneficial starting point to identify the inconsistencies that were discovered among the content experts.

  5. The use of continuous improvement techniques: A survey-based ...

    African Journals Online (AJOL)

    International Journal of Engineering, Science and Technology ... The use of continuous improvement techniques: A survey-based study of current practices ... Prior research has focused mainly on the effect of continuous improvement practices ...

  6. Specialty Training's Organizational Readiness for curriculum Change (STORC): development of a questionnaire in a Delphi study.

    Science.gov (United States)

    Bank, Lindsay; Jippes, Mariëlle; van Luijk, Scheltus; den Rooyen, Corry; Scherpbier, Albert; Scheele, Fedde

    2015-08-05

    In postgraduate medical education (PGME), programs have been restructured according to competency-based frameworks. The scale and implications of these adjustments justify a comprehensive implementation plan. Organizational Readiness for Change (ORC) is seen as a critical precursor for a successful implementation of change initiatives. Though, ORC in health care settings is mostly assessed in small scale settings and in relation to new policies and practices rather than educational change. Therefore our aim with this work was to develop an instrument to asses Specialty Training's Organizational Readiness for curriculum Change (STORC). A Delphi procedure was conducted to examine the applicability of a preliminary questionnaire in PGME, which was based on existing instruments designed for business and health care organizations. The 41 panellists (19 trainees and 22 supervisors from 6 specialties) from four different countries who were confronted with an apparent curriculum change, or would be in the near future, were asked to rate the relevance of a 89-item web-based questionnaire with regard to changes in specialty training on a 5-point Likert scale. Furthermore, they were invited to make qualitative comments on the items. In two rounds the 89-item preliminary questionnaire was reduced to 44 items. Items were either removed, kept, adapted or added based on individual item scores and qualitative comments. In the absence of a gold standard, this Delphi procedure was considered complete when the overall questionnaire rating exceeded 4.0 (scale 0-5). The overall item score reached 4.1 in the second round, meeting our criteria for completion of this Delphi procedure. This Delphi study describes the initial validating step in the development of an instrument to asses Specialty Training's Organisational Readiness for curriculum Change (STORC). Since ORC is measured on various subscales and presented as such, its strength lies in analysing these subscales. The latter makes

  7. Development of a high-value care culture survey: a modified Delphi process and psychometric evaluation.

    OpenAIRE

    Gupta, R.(Panjab University, Chandigarh, India); Moriates, C; Harrison, JD; Valencia, V; Ong, M; Clarke, R.; Steers, N; Hays, RD; Braddock, CH; De Wachter, R

    2016-01-01

    Organisational culture affects physician behaviours. Patient safety culture surveys have previously been used to drive care improvements, but no comparable survey of high-value care culture currently exists. We aimed to develop a High-Value Care Culture Survey (HVCCS) for use by healthcare leaders and training programmes to target future improvements in value-based care.We conducted a two-phase national modified Delphi process among 28 physicians and nurse experts with diverse backgrounds. We...

  8. Best Practices for Outpatient Anterior Cervical Surgery: Results From a Delphi Panel.

    Science.gov (United States)

    Mohandas, Anita; Summa, Chris; Worthington, W Bradley; Lerner, Jason; Foley, Kevin T; Bohinski, Robert J; Lanford, Gregory B; Holden, Carol; Wohns, Richard N W

    2017-06-01

    Delphi Panel expert panel consensus and narrative literature review. To obtain expert consensus on best practices for patient selection and perioperative decision making for outpatient anterior cervical surgery (anterior cervical disc fusion (ACDF) and cervical total disc replacement (CTDR)). Spine surgery in ambulatory settings is becoming a preferred option for both patients and providers. The transition from traditional inpatient environments has been enabled by innovation in anesthesia protocols and surgical technique, as well as favorable economics. Studies have demonstrated that anterior cervical surgery (ACDF and CTDR) can be performed safely on an outpatient basis. However, practice guidelines and evidence-based protocols to inform best practices for the safe and efficient performance of these procedures in same-day, ambulatory settings are lacking. A panel of five neurosurgeons, three anesthesiologists, one orthopedic spine surgeon, and a registered nurse was convened to comprise a multidisciplinary expert panel. A three-round modified-Delphi method was used to generate best-practice statements. Predetermined consensus was set at 70% for each best-practice statement. A total of 94 consensus statements were reviewed by the panel. After three rounds of review, there was consensus for 83 best-practice statements, while 11 statements failed to achieve consensus. All statements within several perioperative categories (and subcategories) achieved consensus, including preoperative assessment (n = 8), home-care/follow-up (n = 2), second-stage recovery (n = 18), provider economics (n = 8), patient education (n = 14), discharge criteria (n = 4), and hypothermia prevention (n = 6). This study obtained expert-panel consensus on best practices for patient selection and perioperative decision making for outpatient anterior cervical surgery (ACDF/CTDR). Given a paucity of guidelines and a lack of established care pathways for ACDF/CTDR in same

  9. An international Delphi study examining health promotion and health education in nursing practice, education and policy.

    Science.gov (United States)

    Whitehead, Dean

    2008-04-01

    To arrive at an expert consensus in relation to health promotion and health education constructs as they apply to nursing practice, education and policy. Nursing has often been maligned and criticized, both inside and outside of the profession, for its ability to understand and conduct effective health promotion and health education-related activities. In the absence of an expert-based consensus, nurses may find it difficult to progress beyond the current situation. In the absence of any previously published nursing-related consensus research, this study seeks to fill that knowledge-gap. A two-round Delphi technique via email correspondence. A first-round qualitative questionnaire used open-ended questions for defining health promotion and health education. This was both in general terms and as participants believed these concepts related to the clinical, theoretical (academic/educational) and the policy (political) setting in nursing. Line-by-line qualitative content and thematic analysis of the first-round data generated 13 specific categories. These categories contained 134 statement items. The second-round questionnaire comprised the identified 134 statements. Using a five-point Likert scale (ranging from 1 = strongly disagree to 5 = strongly agree) participants scored and rated their level of agreement/disagreement against the listed items. Data from the second-round was descriptively analysed according to distribution and central tendency measures. An expert consensus was reached on 65 of the original 134 statements. While some minor contradiction was demonstrated, strong consensus emerged around the issues of defining health promotion and health education and the emergence of a wider health promotion and health education role for nursing. No consensus was reached on only one of the 13 identified topic categories - that of 'nurses working with other disciplines and agencies in a health education and health promotion role.' This study provides a hitherto

  10. The detection of bulk explosives using nuclear-based techniques

    Energy Technology Data Exchange (ETDEWEB)

    Morgado, R.E.; Gozani, T.; Seher, C.C.

    1988-01-01

    In 1986 we presented a rationale for the detection of bulk explosives based on nuclear techniques that addressed the requirements of civil aviation security in the airport environment. Since then, efforts have intensified to implement a system based on thermal neutron activation (TNA), with new work developing in fast neutron and energetic photon reactions. In this paper we will describe these techniques and present new results from laboratory and airport testing. Based on preliminary results, we contended in our earlier paper that nuclear-based techniques did provide sufficiently penetrating probes and distinguishable detectable reaction products to achieve the FAA operational goals; new data have supported this contention. The status of nuclear-based techniques for the detection of bulk explosives presently under investigation by the US Federal Aviation Administration (FAA) is reviewed. These include thermal neutron activation (TNA), fast neutron activation (FNA), the associated particle technique, nuclear resonance absorption, and photoneutron activation. The results of comprehensive airport testing of the TNA system performed during 1987-88 are summarized. From a technical point of view, nuclear-based techniques now represent the most comprehensive and feasible approach for meeting the operational criteria of detection, false alarms, and throughput. 9 refs., 5 figs., 2 tabs.

  11. The DELPHI distributed information system for exchanging LEP machine related information

    Science.gov (United States)

    Dönszelmann, M.; Gaspar, C.

    1994-12-01

    An information management system was designed and implemented to interchange information between the DELPHI experiment at CERN and the monitoring/control system for the LEP (Large Electron Positron Collider) accelerator. This system is distributed and communicates with many different sources and destinations (LEP) using different types of communication. The system itself communicates internally via a communication system based on a publish-and-subscribe mechanism, DIM (Distributed Information Manager). The information gathered by this system is used for on-line as well as off-line data analysis. Therefore it logs the information to a database and makes it available to operators and users via DUI (DELPHI User Interface). The latter was extended to be capable of displaying "time-evolution" plots. It also handles a protocol, implemented using a finite state machine, SMI (State Management Interface), for (semi-)automatic running of the Data Acquisition System and the Slow Controls System.

  12. FRAMEWORK PARA CONVERSÃO DE APLICATIVOS DELPHI DESKTOP EM APLICATIVOS ANDROID NATIVO

    Directory of Open Access Journals (Sweden)

    Rodrigo da Silva Riquena

    2014-08-01

    Full Text Available With the growing use of mobile devices by companies and organizations there is an increasing demand applications in production mobile platform. For certain companies, business success may depend on a mobile application which approaches the customers or improve the performance of internal processes. However, developing software for the mobile platform is an expensive process which takes time and resources. A framework to convert Delphi Desktop applications into native Android applications in an automatic way constitutes a useful tool for architects and software developers can contribute with the implementation phase of the application. Therefore, this work is based on methods and processes for software reengineering as the PRE / OO (Process of Reengineering Object Oriented, for automatic conversion of an application developed in Delphi environment in an application for Android mobile platform. At last, an experiment was performed with a real case to corroborate the goals.

  13. What Are We Aiming For?--A Delphi Study on the Development of Civic Scientific Literacy in Sweden

    Science.gov (United States)

    Chang Rundgren, Shu-Nu; Rundgren, Carl-Johan

    2017-01-01

    Based on the EU FP 7 project, PROFILES, this article presents our findings from a three-round Delphi study conducted in Sweden that aimed at establishing a consensus on how science education should be developed for citizens to enhance civic scientific literacy. A total of 100 stakeholders (9th graders, school teachers, scientists, and science…

  14. Delphi type methodology to develop consensus on the future design of EMS systems in the United Kingdom

    OpenAIRE

    Hassan, T.; Barnett, D.

    2002-01-01

    Design: A Delphi questionnaire design with two rounds to gain a consensus of opinion. Investigation of four aspects of EMS design is reported—type of response to a priority based dispatch category, transportation options, enhancement of paramedic skills, and structure of a first responder system.

  15. The Delphi Technique Used in Laser Incident Surveillance

    Science.gov (United States)

    2004-06-01

    PhD LCDR Doug Fletcher, PhD CONTRIBUTORS Col William Butler, 1Lt Kristy Hayes, Dr Deborah Girasek, and Ms Cara Olsen. The research reported here was...Visible lesion Yes No Macular lesion Yes No Hemorrhagic lesion Yes No Slit lamp exam? (UV, Mid/Far IR) (particularly corneal, iris and

  16. Introdução ao Método Delphi

    OpenAIRE

    Joelma de Souza Passos de, Oliveira; Maira Murrieta, Costa; Marina Ferreira de Castro, Wille; Patricia Zeni, Marchiori

    2008-01-01

    Delphi is a future scenario prospecting method effective used when there are no historic data about the issue to be searched, in other words, when there are no quantitative data about the study object. This book presents and discusses Delphi Method, its concepts and applications. It also shows advantages and critics in the method using. Furthermore, it considers the method in Information Science and the method evolution gather with information technology.

  17. Power system stabilizers based on modern control techniques

    Energy Technology Data Exchange (ETDEWEB)

    Malik, O.P.; Chen, G.P.; Zhang, Y.; El-Metwally, K. [Calgary Univ., AB (Canada). Dept. of Electrical and Computer Engineering

    1994-12-31

    Developments in digital technology have made it feasible to develop and implement improved controllers based on sophisticated control techniques. Power system stabilizers based on adaptive control, fuzzy logic and artificial networks are being developed. Each of these control techniques possesses unique features and strengths. In this paper, the relative performance of power systems stabilizers based on adaptive control, fuzzy logic and neural network, both in simulation studies and real time tests on a physical model of a power system, is presented and compared to that of a fixed parameter conventional power system stabilizer. (author) 16 refs., 45 figs., 3 tabs.

  18. An Improved Particle Swarm Optimization Algorithm Based on Ensemble Technique

    Institute of Scientific and Technical Information of China (English)

    SHI Yan; HUANG Cong-ming

    2006-01-01

    An improved particle swarm optimization (PSO) algorithm based on ensemble technique is presented. The algorithm combines some previous best positions (pbest) of the particles to get an ensemble position (Epbest), which is used to replace the global best position (gbest). It is compared with the standard PSO algorithm invented by Kennedy and Eberhart and some improved PSO algorithms based on three different benchmark functions. The simulation results show that the improved PSO based on ensemble technique can get better solutions than the standard PSO and some other improved algorithms under all test cases.

  19. Efficient Plant Supervision Strategy Using NN Based Techniques

    Science.gov (United States)

    Garcia, Ramon Ferreiro; Rolle, Jose Luis Calvo; Castelo, Francisco Javier Perez

    Most of non-linear type one and type two control systems suffers from lack of detectability when model based techniques are applied on FDI (fault detection and isolation) tasks. In general, all types of processes suffer from lack of detectability also due to the ambiguity to discriminate the process, sensors and actuators in order to isolate any given fault. This work deals with a strategy to detect and isolate faults which include massive neural networks based functional approximation procedures associated to recursive rule based techniques applied to a parity space approach.

  20. An Agent Communication Framework Based on XML and SOAP Technique

    Institute of Scientific and Technical Information of China (English)

    李晓瑜

    2009-01-01

    This thesis introducing XML technology and SOAP technology,present an agent communication fi-amework based on XML and SOAP technique,and analyze the principle,architecture,function and benefit of it. At the end, based on KQML communication primitive lan- guages.

  1. Decomposition Techniques and Effective Algorithms in Reliability-Based Optimization

    DEFF Research Database (Denmark)

    Enevoldsen, I.; Sørensen, John Dalsgaard

    1995-01-01

    The common problem of an extensive number of limit state function calculations in the various formulations and applications of reliability-based optimization is treated. It is suggested to use a formulation based on decomposition techniques so the nested two-level optimization problem can be solved...

  2. Data Mining and Neural Network Techniques in Case Based System

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    This paper first puts forward a case-based system framework basedon data mining techniques. Then the paper examines the possibility of using neural n etworks as a method of retrieval in such a case-based system. In this system we propose data mining algorithms to discover case knowledge and other algorithms.

  3. Simulation-based optimization parametric optimization techniques and reinforcement learning

    CERN Document Server

    Gosavi, Abhijit

    2003-01-01

    Simulation-Based Optimization: Parametric Optimization Techniques and Reinforcement Learning introduces the evolving area of simulation-based optimization. The book's objective is two-fold: (1) It examines the mathematical governing principles of simulation-based optimization, thereby providing the reader with the ability to model relevant real-life problems using these techniques. (2) It outlines the computational technology underlying these methods. Taken together these two aspects demonstrate that the mathematical and computational methods discussed in this book do work. Broadly speaking, the book has two parts: (1) parametric (static) optimization and (2) control (dynamic) optimization. Some of the book's special features are: *An accessible introduction to reinforcement learning and parametric-optimization techniques. *A step-by-step description of several algorithms of simulation-based optimization. *A clear and simple introduction to the methodology of neural networks. *A gentle introduction to converg...

  4. A Hough Transform based Technique for Text Segmentation

    CERN Document Server

    Saha, Satadal; Nasipuri, Mita; Basu, Dipak Kr

    2010-01-01

    Text segmentation is an inherent part of an OCR system irrespective of the domain of application of it. The OCR system contains a segmentation module where the text lines, words and ultimately the characters must be segmented properly for its successful recognition. The present work implements a Hough transform based technique for line and word segmentation from digitized images. The proposed technique is applied not only on the document image dataset but also on dataset for business card reader system and license plate recognition system. For standardization of the performance of the system the technique is also applied on public domain dataset published in the website by CMATER, Jadavpur University. The document images consist of multi-script printed and hand written text lines with variety in script and line spacing in single document image. The technique performs quite satisfactorily when applied on mobile camera captured business card images with low resolution. The usefulness of the technique is verifie...

  5. Memory Based Machine Intelligence Techniques in VLSI hardware

    OpenAIRE

    James, Alex Pappachen

    2012-01-01

    We briefly introduce the memory based approaches to emulate machine intelligence in VLSI hardware, describing the challenges and advantages. Implementation of artificial intelligence techniques in VLSI hardware is a practical and difficult problem. Deep architectures, hierarchical temporal memories and memory networks are some of the contemporary approaches in this area of research. The techniques attempt to emulate low level intelligence tasks and aim at providing scalable solutions to high ...

  6. Bond strength with custom base indirect bonding techniques.

    Science.gov (United States)

    Klocke, Arndt; Shi, Jianmin; Kahl-Nieke, Bärbel; Bismayer, Ulrich

    2003-04-01

    Different types of adhesives for indirect bonding techniques have been introduced recently. But there is limited information regarding bond strength with these new materials. In this in vitro investigation, stainless steel brackets were bonded to 100 permanent bovine incisors using the Thomas technique, the modified Thomas technique, and light-cured direct bonding for a control group. The following five groups of 20 teeth each were formed: (1) modified Thomas technique with thermally cured base composite (Therma Cure) and chemically cured sealant (Maximum Cure), (2) Thomas technique with thermally cured base composite (Therma Cure) and chemically cured sealant (Custom I Q), (3) Thomas technique with light-cured base composite (Transbond XT) and chemically cured sealant (Sondhi Rapid Set), (4) modified Thomas technique with chemically cured base adhesive (Phase II) and chemically cured sealant (Maximum Cure), and (5) control group directly bonded with light-cured adhesive (Transbond XT). Mean bond strengths in groups 3, 4, and 5 were 14.99 +/- 2.85, 15.41 +/- 3.21, and 13.88 +/- 2.33 MPa, respectively, and these groups were not significantly different from each other. Groups 1 (mean bond strength 7.28 +/- 4.88 MPa) and 2 (mean bond strength 7.07 +/- 4.11 MPa) showed significantly lower bond strengths than groups 3, 4, and 5 and a higher probability of bond failure. Both the original (group 2) and the modified (group 1) Thomas technique were able to achieve bond strengths comparable to the light-cured direct bonded control group.

  7. Memory Based Machine Intelligence Techniques in VLSI hardware

    CERN Document Server

    James, Alex Pappachen

    2012-01-01

    We briefly introduce the memory based approaches to emulate machine intelligence in VLSI hardware, describing the challenges and advantages. Implementation of artificial intelligence techniques in VLSI hardware is a practical and difficult problem. Deep architectures, hierarchical temporal memories and memory networks are some of the contemporary approaches in this area of research. The techniques attempt to emulate low level intelligence tasks and aim at providing scalable solutions to high level intelligence problems such as sparse coding and contextual processing.

  8. Image analysis techniques associated with automatic data base generation.

    Science.gov (United States)

    Bond, A. D.; Ramapriyan, H. K.; Atkinson, R. J.; Hodges, B. C.; Thomas, D. T.

    1973-01-01

    This paper considers some basic problems relating to automatic data base generation from imagery, the primary emphasis being on fast and efficient automatic extraction of relevant pictorial information. Among the techniques discussed are recursive implementations of some particular types of filters which are much faster than FFT implementations, a 'sequential similarity detection' technique of implementing matched filters, and sequential linear classification of multispectral imagery. Several applications of the above techniques are presented including enhancement of underwater, aerial and radiographic imagery, detection and reconstruction of particular types of features in images, automatic picture registration and classification of multiband aerial photographs to generate thematic land use maps.

  9. MPPT Technique Based on Current and Temperature Measurements

    Directory of Open Access Journals (Sweden)

    Eduardo Moreira Vicente

    2015-01-01

    Full Text Available This paper presents a new maximum power point tracking (MPPT method based on the measurement of temperature and short-circuit current, in a simple and efficient approach. These measurements, which can precisely define the maximum power point (MPP, have not been used together in other existing techniques. The temperature is measured with a low cost sensor and the solar irradiance is estimated through the relationship of the measured short-circuit current and its reference. Fast tracking speed and stable steady-state operation are advantages of this technique, which presents higher performance when compared to other well-known techniques.

  10. 78 FR 48467 - Delphi Automotive Systems, LLC, Products and Service Solutions Division, Including On-Site Leased...

    Science.gov (United States)

    2013-08-08

    ... Employment and Training Administration Delphi Automotive Systems, LLC, Products and Service Solutions... workers of Delphi Automotive Systems, LLC, Product and Service Solutions Division, Original Equipment... of ] Delphi Automotive Systems, LLC, Product and Service Solutions Division, including on-site...

  11. Effective self-management strategies for bipolar disorder: A community-engaged Delphi Consensus Consultation study.

    Science.gov (United States)

    Michalak, Erin E; Suto, Melinda J; Barnes, Steven J; Hou, Sharon; Lapsley, Sara; Scott, Mike W; Murray, Greg; Austin, Jehannine; Elliott, Nusha Balram; Berk, Lesley; Crest Bd

    2016-12-01

    Self-management represents an important complement to psychosocial treatments for bipolar disorder (BD), but research is limited. Specifically, little is known about self-management approaches for elevated mood states; this study investigated self-management strategies for: (1) maintaining balance in mood, and (2) stopping progression into hypomania/mania. To identify the common components of BD self-management, Delphi Consensus Consultation methods were combined with a Community-Based Participatory Research (CBPR) approach across five study phases: (1) Qualitative dataset content analysis; (2) Academic/grey literature reviews; (3) Content analysis; (4) Two Delphi rounds (rating strategies on a 5-point Likert scale, Very Unhelpful-Very Helpful), and; (5) Quantitative analysis and interpretation. Participants were people with BD and healthcare providers. Phases 1 and 2 identified 262 and 3940 candidate strategies, respectively; 3709 were discarded as duplicates/unintelligible. The remaining 493 were assessed via Delphi methods in Phase 4: 101 people with BD and 52 healthcare providers participated in Round 1; 83 of the BD panel (82%) and 43 of the healthcare provider panel (83%) participated in Round 2-exploratory factor analysis (EFA) was conducted on Round 2 results. EFA was underpowered and sample was not ethnically diverse, limiting generalizability. High concordance was observed in ratings of strategy effectiveness between the two panels. Future research could usefully investigate the provisional discovery here of underlying factors which link individual strategies. For example, 'maintaining hope' underpinned strategies for maintaining balance, and 'decreasing use of stimulants' underpinned strategies to interrupt hypo/manic ascent. There is merit in combining CBPR and Delphi methods. Copyright © 2016 Elsevier B.V. All rights reserved.

  12. Planning interventional trials in childhood arterial ischaemic stroke using a Delphi consensus process.

    Science.gov (United States)

    Steinlin, Maja; O'callaghan, Finbar; Mackay, Mark T

    2017-07-01

    There is a paucity of data from randomized controlled treatment trials in childhood arterial ischaemic stroke. Our objectives were to identify and plan a trial through use of a Delphi consensus process. The Delphi panel consisted of Australian, New Zealand, and European paediatric neurologists with interests in childhood stroke. Four rounds were conducted using a REDCap (Research Electronic Data Capture) Web-based application: the first consisted of open-ended questions; the second evaluated agreement for the most important trial; the third and fourth reached consensus on design. Forty-seven out of 66 neurologists answered the first round. Eight areas of research for important and feasible trials were identified. In the second round, 43 paediatric neurologists ranked the three highest rated trials: (1) aspirin versus aspirin plus steroids in focal arteriopathy (n=31); (2) heparin versus aspirin (n=6); and (3) heparin versus aspirin versus modern anticoagulation (n=6). The third and fourth surveys reached consensus among 43 out of 44 respondents on design of the highest ranked trial, and allowed agreement on inclusion/exclusion criteria, clinical/neuroimaging data, and treatment protocols. The Delphi consensus process is an efficient method of identifying and planning paediatric stroke trials. An international, multicentre trial is now in preparation. © 2017 Mac Keith Press.

  13. Runtime Monitoring Technique to handle Tautology based SQL Injection Attacks

    Directory of Open Access Journals (Sweden)

    Ramya Dharam

    2015-05-01

    Full Text Available Software systems, like web applications, are often used to provide reliable online services such as banking, shopping, social networking, etc., to users. The increasing use of such systems has led to a high need for assuring confidentiality, integrity, and availability of user data. SQL Injection Attacks (SQLIAs is one of the major security threats to web applications. It allows attackers to get unauthorized access to the back-end database consisting of confidential user information. In this paper we present and evaluate a Runtime Monitoring Technique to detect and prevent tautology based SQLIAs in web applications. Our technique monitors the behavior of the application during its post- deployment to identify all the tautology based SQLIAs. A framework called Runtime Monitoring Framework, that implements our technique, is used in the development of runtime monitors. The framework uses two pre-deployment testing techniques, such as basis-path and data-flow to identify a minimal set of all legal/valid execution paths of the application. Runtime monitors are then developed and integrated to perform runtime monitoring of the application, during its post-deployment for the identified valid/legal execution paths. For evaluation we targeted a subject application with a large number of both legitimate inputs and illegitimate tautology based inputs, and measured the performance of the proposed technique. The results of our study show that runtime monitor developed for the application was successfully able to detect all the tautology based attacks without generating any false positives.

  14. Laser-based direct-write techniques for cell printing.

    Science.gov (United States)

    Schiele, Nathan R; Corr, David T; Huang, Yong; Raof, Nurazhani Abdul; Xie, Yubing; Chrisey, Douglas B

    2010-09-01

    Fabrication of cellular constructs with spatial control of cell location (+/-5 microm) is essential to the advancement of a wide range of applications including tissue engineering, stem cell and cancer research. Precise cell placement, especially of multiple cell types in co- or multi-cultures and in three dimensions, can enable research possibilities otherwise impossible, such as the cell-by-cell assembly of complex cellular constructs. Laser-based direct writing, a printing technique first utilized in electronics applications, has been adapted to transfer living cells and other biological materials (e.g., enzymes, proteins and bioceramics). Many different cell types have been printed using laser-based direct writing, and this technique offers significant improvements when compared to conventional cell patterning techniques. The predominance of work to date has not been in application of the technique, but rather focused on demonstrating the ability of direct writing to pattern living cells, in a spatially precise manner, while maintaining cellular viability. This paper reviews laser-based additive direct-write techniques for cell printing, and the various cell types successfully laser direct-written that have applications in tissue engineering, stem cell and cancer research are highlighted. A particular focus is paid to process dynamics modeling and process-induced cell injury during laser-based cell direct writing.

  15. Laser-based direct-write techniques for cell printing

    Energy Technology Data Exchange (ETDEWEB)

    Schiele, Nathan R; Corr, David T [Biomedical Engineering Department, Rensselaer Polytechnic Institute, Troy, NY (United States); Huang Yong [Department of Mechanical Engineering, Clemson University, Clemson, SC (United States); Raof, Nurazhani Abdul; Xie Yubing [College of Nanoscale Science and Engineering, University at Albany, SUNY, Albany, NY (United States); Chrisey, Douglas B, E-mail: schien@rpi.ed, E-mail: chrisd@rpi.ed [Material Science and Engineering Department, Rensselaer Polytechnic Institute, Troy, NY (United States)

    2010-09-15

    Fabrication of cellular constructs with spatial control of cell location ({+-}5 {mu}m) is essential to the advancement of a wide range of applications including tissue engineering, stem cell and cancer research. Precise cell placement, especially of multiple cell types in co- or multi-cultures and in three dimensions, can enable research possibilities otherwise impossible, such as the cell-by-cell assembly of complex cellular constructs. Laser-based direct writing, a printing technique first utilized in electronics applications, has been adapted to transfer living cells and other biological materials (e.g., enzymes, proteins and bioceramics). Many different cell types have been printed using laser-based direct writing, and this technique offers significant improvements when compared to conventional cell patterning techniques. The predominance of work to date has not been in application of the technique, but rather focused on demonstrating the ability of direct writing to pattern living cells, in a spatially precise manner, while maintaining cellular viability. This paper reviews laser-based additive direct-write techniques for cell printing, and the various cell types successfully laser direct-written that have applications in tissue engineering, stem cell and cancer research are highlighted. A particular focus is paid to process dynamics modeling and process-induced cell injury during laser-based cell direct writing. (topical review)

  16. PCA Based Rapid and Real Time Face Recognition Technique

    Directory of Open Access Journals (Sweden)

    T R Chandrashekar

    2013-12-01

    Full Text Available Economical and efficient that is used in various applications is face Biometric which has been a popular form biometric system. Face recognition system is being a topic of research for last few decades. Several techniques are proposed to improve the performance of face recognition system. Accuracy is tested against intensity, distance from camera, and pose variance. Multiple face recognition is another subtopic which is under research now a day. Speed at which the technique works is a parameter under consideration to evaluate a technique. As an example a support vector machine performs really well for face recognition but the computational efficiency degrades significantly with increase in number of classes. Eigen Face technique produces quality features for face recognition but the accuracy is proved to be comparatively less to many other techniques. With increase in use of core processors in personal computers and application demanding speed in processing and multiple face detection and recognition system (for example an entry detection system in shopping mall or an industry, demand for such systems are cumulative as there is a need for automated systems worldwide. In this paper we propose a novel system of face recognition developed with C# .Net that can detect multiple faces and can recognize the faces parallel by utilizing the system resources and the core processors. The system is built around Haar Cascade based face detection and PCA based face recognition system with C#.Net. Parallel library designed for .Net is used to aide to high speed detection and recognition of the real time faces. Analysis of the performance of the proposed technique with some of the conventional techniques reveals that the proposed technique is not only accurate, but also is fast in comparison to other techniques.

  17. A Knowledge—Based Specification Technique for Protocol Development

    Institute of Scientific and Technical Information of China (English)

    张尧学; 史美林; 等

    1993-01-01

    is paper proposes a knowledge-based specification technique(KST)for protocol development.This technique semi-automatically translates a protocol described in an informal description(natural languages or graphs)into one described in forml specifications(Estells and SDL).The translation processes are suported by knowledge stored in the knowledge base.This paper discusses the concept,the specification control mechanism of KST and the rules and algorithms for production of FSM's which is the basis of Estelle and SDL.

  18. A Delphi study on research priorities in radiation therapy: The Australian perspective

    Energy Technology Data Exchange (ETDEWEB)

    Cox, Jennifer [Faculty of Health Sciences, University of Sydney, P.O. Box 170, Lidcombe, NSW 1825 (Australia)], E-mail: jenny.cox@usyd.edu.au; Halkett, Georgia [Western Australia Centre for Cancer and Palliative Care, Curtin University of Technology, Health Research Campus, GPO Box U1987, Perth, WA 6845 (Australia)], E-mail: g.halkett@curtin.edu.au; Anderson, Claudia [Faculty of Health Sciences, University of Sydney, P.O. Box 170, Lidcombe, NSW 1825 (Australia)], E-mail: claudia.anderson@usyd.edu.au; Heard, Robert [Faculty of Health Sciences, University of Sydney, P.O. Box 170, Lidcombe, NSW 1825 (Australia)], E-mail: r.heard@staff.usyd.edu.au

    2010-02-15

    Radiation therapists (RTs) need to engage more in research to establish an evidence base for their daily practice. However, RTs world-wide conduct little research themselves, although positive moves have been made in some countries. This project is the second stage of a Delphi process aimed at prioritising RT areas of research interest. A questionnaire was constructed using responses to a previous questionnaire which identified the research interests of Australian RTs. Fifty-three Research Areas were identified from these responses and grouped into 12 categories such as 'imaging in radiation therapy', 'symptom management', 'accuracy of patient positioning' and 'techniques/equipment'. The survey was sent to all Australian departments of radiation oncology, and RTs were asked to form interest groups to discuss and prioritise the Research Areas. There was a 50% response rate (18 of 36 departments surveyed). The highest ranked research Category was 'imaging in radiation therapy'. Six of the top 10 ranked Research Areas were within Central RT practice ('imaging in radiation therapy'; 'symptom management'; 'accuracy of patient positioning' and 'techniques/equipment') and the other four were within broader RT practice ('diversification, recognition and other professional issues'; and 'management and staff issues'). Patient Care was also considered to be an area requiring more research. This prioritization of Research Areas and categories provides a useful list of future research for RTs, which will enable them to decide whether their research ideas are a high priority, and spend less time deciding on a relevant research topic that needs investigation in their own workplaces.

  19. Fault Based Techniques for Testing Boolean Expressions: A Survey

    CERN Document Server

    Badhera, Usha; Taruna, S

    2012-01-01

    Boolean expressions are major focus of specifications and they are very much prone to introduction of faults, this survey presents various fault based testing techniques. It identifies that the techniques differ in their fault detection capabilities and generation of test suite. The various techniques like Cause effect graph, meaningful impact strategy, Branch Operator Strategy (BOR), BOR+MI, MUMCUT, Modified Condition/ Decision Coverage (MCDC) has been considered. This survey describes the basic algorithms and fault categories used by these strategies for evaluating their performance. Finally, it contains short summaries of the papers that use Boolean expressions used to specify the requirements for detecting faults. These techniques have been empirically evaluated by various researchers on a simplified safety related real time control system.

  20. Least-squares based iterative multipath super-resolution technique

    CERN Document Server

    Nam, Wooseok

    2011-01-01

    In this paper, we study the problem of multipath channel estimation for direct sequence spread spectrum signals. To resolve multipath components arriving within a short interval, we propose a new algorithm called the least-squares based iterative multipath super-resolution (LIMS). Compared to conventional super-resolution techniques, such as the multiple signal classification (MUSIC) and the estimation of signal parameters via rotation invariance techniques (ESPRIT), our algorithm has several appealing features. In particular, even in critical situations where the conventional super-resolution techniques are not very powerful due to limited data or the correlation between path coefficients, the LIMS algorithm can produce successful results. In addition, due to its iterative nature, the LIMS algorithm is suitable for recursive multipath tracking, whereas the conventional super-resolution techniques may not be. Through numerical simulations, we show that the LIMS algorithm can resolve the first arrival path amo...

  1. State Evaluation of Power Transmission Line with Delphi Method Based on Hierarchical Model%基于Delphi法和分层模型的输电线路状态评价

    Institute of Scientific and Technical Information of China (English)

    王成江; 李红艳; 范开明; 张铂雅; 李光

    2012-01-01

    The state evaluation of power transmission line is the important basis for the development of maintenance plans. The current state evaluation of power transmission line is not flexible and inconvenient to operate in actual application because the fixed weights set by rules are applied. A new state evaluation method for power transmission line is studied. In this method, a hierarchical model of state evaluation for transmission line is built first; and then according to the requirement of Delphi method,58 experts in the field of power transmission are asked to give the orders of the importance of 8 components and 57 criteria in the hierarchical evaluation model. Beside that, the weight coefficients of elements involved in the order given by experts are counted and calculated layer by layer with the Delphi method. At last, the same evaluation standard is used to grade 2 power transmission lines; and the comprehensive status evaluation of the line is gained according to the new weight coefficients. The evaluation results show that the evaluation method is more effective and more scientific.%输电线路的状态评价是制定检修计划的重要依据.现有的输电线路状态评价多是套用规程规定的固定权重,这在实际运用时难免数据僵硬、不便操作.本文研究了一种新的输电线路状态评价方法.在建立输电线路层次评价模型的基础上,按照Delphi法的要求,请58位输电领域的专家对层次评价模型中的8个线路单元和57个状态量分别进行了重要性排序,然后应用Delphi方法逐层统计计算专家排序中涉及到的不同元素的权重系数,最后,采用同一量度对2条输电线路进行打分,利用新的权重系数进行线路状态的综合评价,评价结果显示该评价方法更具有有效性和科学性.

  2. A Novel Nanofabrication Technique of Silicon-Based Nanostructures

    Science.gov (United States)

    Meng, Lingkuan; He, Xiaobin; Gao, Jianfeng; Li, Junjie; Wei, Yayi; Yan, Jiang

    2016-11-01

    A novel nanofabrication technique which can produce highly controlled silicon-based nanostructures in wafer scale has been proposed using a simple amorphous silicon (α-Si) material as an etch mask. SiO2 nanostructures directly fabricated can serve as nanotemplates to transfer into the underlying substrates such as silicon, germanium, transistor gate, or other dielectric materials to form electrically functional nanostructures and devices. In this paper, two typical silicon-based nanostructures such as nanoline and nanofin have been successfully fabricated by this technique, demonstrating excellent etch performance. In addition, silicon nanostructures fabricated above can be further trimmed to less than 10 nm by combing with assisted post-treatment methods. The novel nanofabrication technique will be expected a new emerging technology with low process complexity and good compatibility with existing silicon integrated circuit and is an important step towards the easy fabrication of a wide variety of nanoelectronics, biosensors, and optoelectronic devices.

  3. Membrane-based microextraction techniques in analytical chemistry: A review.

    Science.gov (United States)

    Carasek, Eduardo; Merib, Josias

    2015-06-23

    The use of membrane-based sample preparation techniques in analytical chemistry has gained growing attention from the scientific community since the development of miniaturized sample preparation procedures in the 1990s. The use of membranes makes the microextraction procedures more stable, allowing the determination of analytes in complex and "dirty" samples. This review describes some characteristics of classical membrane-based microextraction techniques (membrane-protected solid-phase microextraction, hollow-fiber liquid-phase microextraction and hollow-fiber renewal liquid membrane) as well as some alternative configurations (thin film and electromembrane extraction) used successfully for the determination of different analytes in a large variety of matrices, some critical points regarding each technique are highlighted.

  4. Image encryption techniques based on the fractional Fourier transform

    Science.gov (United States)

    Hennelly, B. M.; Sheridan, J. T.

    2003-11-01

    The fractional Fourier transform, (FRT), is a generalisation of the Fourier transform which allows domains of mixed spatial frequency and spatial information to be examined. A number of method have recently been proposed in the literature for the encryption of two dimensional information using optical systems based on the FRT. Typically, these methods require random phase screen keys to decrypt the data, which must be stored at the receiver and must be carefully aligned with the received encrypted data. We have proposed a new technique based on a random shifting or Jigsaw transformation. This method does not require the use of phase keys. The image is encrypted by juxtaposition of sections of the image in various FRT domains. The new method has been compared numerically with existing methods and shows comparable or superior robustness to blind decryption. An optical implementation is also proposed and the sensitivity of the various encryption keys to blind decryption is quantified. We also present a second image encryption technique, which is based on a recently proposed method of optical phase retrieval using the optical FRT and one of its discrete counterparts. Numerical simulations of the new algorithm indicates that the sensitivity of the keys is much greater than any of the techniques currently available. In fact the sensitivity appears to be so high that optical implementation, based on existing optical signal processing technology, may be impossible. However, the technique has been shown to be a powerful method of 2-D image data encryption.

  5. Full-duplex MIMO system based on antenna cancellation technique

    DEFF Research Database (Denmark)

    Foroozanfard, Ehsan; Franek, Ondrej; Tatomirescu, Alexandru

    2014-01-01

    The performance of an antenna cancellation technique for a multiple-input– multiple-output (MIMO) full-duplex system that is based on null-steering beamforming and antenna polarization diversity is investigated. A practical implementation of a symmetric antenna topology comprising three dual-pola...

  6. SOLID STATE ENERGY CONVERSION ALLIANCE DELPHI SOFC

    Energy Technology Data Exchange (ETDEWEB)

    Steven Shaffer; Sean Kelly; Subhasish Mukerjee; David Schumann; H. Skip Mieney

    2003-06-09

    The objective of Phase I under this project is to develop a 5 kW Solid Oxide Fuel Cell power system for a range of fuels and applications. During Phase I, the following will be accomplished: Develop and demonstrate technology transfer efforts on a 5 kW stationary distributed power generation system that incorporates steam reforming of natural gas with piped-in water (Demonstration System A); and Initiate development of a 5 kW system for later mass-market automotive auxiliary power unit application, which will incorporate Catalytic Partial Oxidation (CPO) reforming of gasoline, with anode exhaust gas injected into an ultra-lean burn internal combustion engine. This technical progress report covers work performed by Delphi from July through December 2002 under Department of Energy Cooperative Agreement DE-FC-02NT41246 for the 5 kW mass-market automotive (gasoline) auxiliary power unit. This report highlights technical results of the work performed under the following tasks for the automotive 5 kW system: Task 1--System Design and Integration; Task 2--Solid Oxide Fuel Cell Stack Developments; Task 3--Reformer Developments; Task 4--Development of Balance of Plant (BOP) Components; Task 5--Manufacturing Development (Privately Funded); Task 6--System Fabrication; and Task 7--System Testing.

  7. Solid State Energy Conversion Alliance Delphi SOFC

    Energy Technology Data Exchange (ETDEWEB)

    Steven Shaffer; Sean Kelly; Larry Chick; Subhasish Mukerjee; David Schumann

    2003-05-20

    The objective of Phase I under this project is to develop a 5 kW SOFC power system for a range of fuels and applications. During Phase I, the following will be accomplished: 1. Develop and demonstrate technology transfer efforts on a 5 kW stationary distributed power generation system that incorporates steam reforming of natural gas with piped-in water (Demonstration System A). 2. Initiate development of a 5 kW system for later mass-market automotive auxiliary power unit application, which will incorporate catalytic partial oxidation (CPO) reforming of gasoline, with anode exhaust gas injected into an ultra-lean burn internal combustion engine. This topical report covers work performed by Delphi Automotive Systems from January through June 2002 under DOE Cooperative Agreement DE-FC-02NT41246 for the 5 kW mass-market automotive (gasoline) auxiliary power unit. This report highlights technical results of the work performed under the following tasks for the automotive 5 kW system: 1. System Design and Integration 2. SOFC Stack Development 3. Reformer Development The next anticipated Technical Progress Report will be submitted January 30, 2003 and will include tasks contained within the cooperative agreement including development work on the Demonstration System A, if available.

  8. Video multiple watermarking technique based on image interlacing using DWT.

    Science.gov (United States)

    Ibrahim, Mohamed M; Abdel Kader, Neamat S; Zorkany, M

    2014-01-01

    Digital watermarking is one of the important techniques to secure digital media files in the domains of data authentication and copyright protection. In the nonblind watermarking systems, the need of the original host file in the watermark recovery operation makes an overhead over the system resources, doubles memory capacity, and doubles communications bandwidth. In this paper, a robust video multiple watermarking technique is proposed to solve this problem. This technique is based on image interlacing. In this technique, three-level discrete wavelet transform (DWT) is used as a watermark embedding/extracting domain, Arnold transform is used as a watermark encryption/decryption method, and different types of media (gray image, color image, and video) are used as watermarks. The robustness of this technique is tested by applying different types of attacks such as: geometric, noising, format-compression, and image-processing attacks. The simulation results show the effectiveness and good performance of the proposed technique in saving system resources, memory capacity, and communications bandwidth.

  9. Face Veins Based MCMT Technique for Personal Identification

    Directory of Open Access Journals (Sweden)

    Kamta Nath Mishra

    2015-08-01

    Full Text Available Face veins based personal identification is a challenging task in the field of identity verification of a person. It is because many other techniques are not identifying the uniqueness of a person in the universe. This research paper finds the uniqueness of a person on the basis of face veins based technique. In this paper five different persons face veins images have been used with different rotation angles (left/right 900 to 2700 and 3150 . For each person, eight different images at different rotations were used and for each of these images the same minimum cost minutiae tree (MCMT is obtained. Here, Prim‟s or Kruskal‟s algorithm is used for finding the MCMT from a minutiae graph. The MCMT is traversed in pre-order to generate the unique string of vertices and edge lengths. We deviated the edge lengths of each MCMT by five pixels in positive and negative directions for robustness testing. It is observed in our experiments that the traversed string which consists of vertices and edge lengths of MCMT is unique for each person and this unique sequence is correctly identifying a person with an accuracy of above 95%. Further, we have compared the performance of our proposed technique with other standard techniques and it is observed that the proposed technique is giving the promising result.

  10. The Real-Time Image Processing Technique Based on DSP

    Institute of Scientific and Technical Information of China (English)

    QI Chang; CHEN Yue-hua; HUANG Tian-shu

    2005-01-01

    This paper proposes a novel real-time image processing technique based on digital singnal processor (DSP). At the aspect of wavelet transform(WT) algorithm, the technique uses algorithm of second generation wavelet transform-lifting scheme WT that has low calculation complexity property for the 2-D image data processing. Since the processing effect of lifting scheme WT for 1-D data is better than the effect of it for 2-D data obviously, this paper proposes a reformative processing method: Transform 2-D image data to 1-D data sequence by linearization method, then process the 1-D data sequence by algorithm of lifting scheme WT. The method changes the image convolution mode,which based on the cross filtering of rows and columns. At the aspect of hardware realization, the technique optimizes the program structure of DSP to exert the operation power with the in-chip memorizer of DSP. The experiment results show that the real-time image processing technique proposed in this paper can meet the real-time requirement of video-image transmitting in the video surveillance system of electric power. So the technique is a feasible and efficient DSP solution.

  11. Analysis of University Library Human Resources Performance Evaluation System Based on Delphi Method%基于德尔菲法的高校图书馆人力资源绩效评估指标体系的研究

    Institute of Scientific and Technical Information of China (English)

    毛近菲

    2012-01-01

    人力资源绩效考核的核心要素就是指标体系的建立。本研究应用德尔菲法建立高校图书馆人力资源绩效评估指标体系。指标体系的建立过程是咨询专家的选择、初始指标的确定、咨询问卷的拟定以及两轮专家咨询,最后进行数据处理,最终获得包括一级指标4个,二级指标22个,三级指标47个共计73个指标的一套绩效评估指标体系,对于图书馆人力资源绩效评估体系的建立具有参考意义。%The core element of human resources performance appraisal is the establishment of evaluation index system. This study applies the Delphi method to establish university library human resources performance evaluation index system. Establishment of index system process includes selection of experts, initial indicator setting,designation questionnaire,expert consultation and data process, eventually obtaining a set of library human resource performance evaluation index system including 73 indexes.

  12. Proposing a Wiki-Based Technique for Collaborative Essay Writing

    Directory of Open Access Journals (Sweden)

    Mabel Ortiz Navarrete

    2014-10-01

    Full Text Available This paper aims at proposing a technique for students learning English as a foreign language when they collaboratively write an argumentative essay in a wiki environment. A wiki environment and collaborative work play an important role within the academic writing task. Nevertheless, an appropriate and systematic work assignment is required in order to make use of both. In this paper the proposed technique when writing a collaborative essay mainly attempts to provide the most effective way to enhance equal participation among group members by taking as a base computer mediated collaboration. Within this context, the students’ role is clearly defined and individual and collaborative tasks are explained.

  13. Knowledge based systems advanced concepts, techniques and applications

    CERN Document Server

    1997-01-01

    The field of knowledge-based systems (KBS) has expanded enormously during the last years, and many important techniques and tools are currently available. Applications of KBS range from medicine to engineering and aerospace.This book provides a selected set of state-of-the-art contributions that present advanced techniques, tools and applications. These contributions have been prepared by a group of eminent researchers and professionals in the field.The theoretical topics covered include: knowledge acquisition, machine learning, genetic algorithms, knowledge management and processing under unc

  14. The Delphi process: a solution for reviewing novel grant applications

    Directory of Open Access Journals (Sweden)

    Cath Holliday

    2010-08-01

    Full Text Available Cath Holliday1, Monica Robotin1,21Cancer Council New South Wales, Sydney; 2University of Sydney, School of Public Health, Sydney, New South Wales, AustraliaIntroduction: Traditional scientific review processes are not well suited for evaluating the merits of research in situations where the available scientific evidence is limited and if review panels have widely divergent opinions. This study tested whether a Delphi process is useful in grant selection.Materials and method: A Delphi process prioritized novel research proposals in pancreatic cancer. Five reviewers holding similar grants overseas ranked research applications by scientific merit, innovativeness, and level of risk.Result: Three rounds of voting evaluated the best 10 applications received. In the first round of the Delphi process, scores ranged from 5.0 to 8.3. After the second round, the cumulative scores of the eight remaining applications ranged from 10 to 12.6. At the end of the third round, the final cumulative scores of the remaining six applications ranged from 13.6 to 18.2. The four highest ranking applications were recommended for funding, with agreement from reviewers.Conclusion: A modified Delphi process proved to be an efficient, transparent, and equitable method of reviewing novel grant applications in a specialized field of research, where no local expertise was available. This process may also be useful for other peer review processes, particularly where there is limited access to local experts.Keywords: delphi process, research grant selection, consensus

  15. Line Search-Based Inverse Lithography Technique for Mask Design

    Directory of Open Access Journals (Sweden)

    Xin Zhao

    2012-01-01

    Full Text Available As feature size is much smaller than the wavelength of illumination source of lithography equipments, resolution enhancement technology (RET has been increasingly relied upon to minimize image distortions. In advanced process nodes, pixelated mask becomes essential for RET to achieve an acceptable resolution. In this paper, we investigate the problem of pixelated binary mask design in a partially coherent imaging system. Similar to previous approaches, the mask design problem is formulated as a nonlinear program and is solved by gradient-based search. Our contributions are four novel techniques to achieve significantly better image quality. First, to transform the original bound-constrained formulation to an unconstrained optimization problem, we propose a new noncyclic transformation of mask variables to replace the wellknown cyclic one. As our transformation is monotonic, it enables a better control in flipping pixels. Second, based on this new transformation, we propose a highly efficient line search-based heuristic technique to solve the resulting unconstrained optimization. Third, to simplify the optimization, instead of using discretization regularization penalty technique, we directly round the optimized gray mask into binary mask for pattern error evaluation. Forth, we introduce a jump technique in order to jump out of local minimum and continue the search.

  16. A Survey on Statistical Based Single Channel Speech Enhancement Techniques

    Directory of Open Access Journals (Sweden)

    Sunnydayal. V

    2014-11-01

    Full Text Available Speech enhancement is a long standing problem with various applications like hearing aids, automatic recognition and coding of speech signals. Single channel speech enhancement technique is used for enhancement of the speech degraded by additive background noises. The background noise can have an adverse impact on our ability to converse without hindrance or smoothly in very noisy environments, such as busy streets, in a car or cockpit of an airplane. Such type of noises can affect quality and intelligibility of speech. This is a survey paper and its object is to provide an overview of speech enhancement algorithms so that enhance the noisy speech signal which is corrupted by additive noise. The algorithms are mainly based on statistical based approaches. Different estimators are compared. Challenges and Opportunities of speech enhancement are also discussed. This paper helps in choosing the best statistical based technique for speech enhancement

  17. An Observed Voting System Based On Biometric Technique

    Directory of Open Access Journals (Sweden)

    B. Devikiruba

    2015-08-01

    Full Text Available ABSTRACT This article describes a computational framework which can run almost on every computer connected to an IP based network to study biometric techniques. This paper discusses with a system protecting confidential information puts strong security demands on the identification. Biometry provides us with a user-friendly method for this identification and is becoming a competitor for current identification mechanisms. The experimentation section focuses on biometric verification specifically based on fingerprints. This article should be read as a warning to those thinking of using methods of identification without first examine the technical opportunities for compromising mechanisms and the associated legal consequences. The development is based on the java language that easily improves software packages that is useful to test new control techniques.

  18. An Investigation Into the Challenges of Joint Basing

    Science.gov (United States)

    2014-06-19

    have hindered true cost savings from being realized. This research leverages the Delphi Method in capturing and ranking the top issues to aid...issues. The Delphi method utilizes both a qualitative (questionnaire) and quantitative (statistical analysis of answers) tool that leverages human...The primary method by which insights were gathered on joint basing challenges was the Delphi Method . The Delphi Method was developed by the RAND

  19. Multivariate discrimination technique based on the Bayesian theory

    Institute of Scientific and Technical Information of China (English)

    JIN Ping; PAN Chang-zhou; XIAO Wei-guo

    2007-01-01

    A multivariate discrimination technique was established based on the Bayesian theory. Using this technique, P/S ratios of different types (e.g., Pn/Sn, Pn/Lg, Pg/Sn or Pg/Lg) measured within different frequency bands and from different stations were combined together to discriminate seismic events in Central Asia. Major advantages of the Bayesian approach are that the probability to be an explosion for any unknown event can be directly calculated given the measurements of a group of discriminants, and at the same time correlations among these discriminants can be fully taken into account. It was proved theoretically that the Bayesian technique would be optimal and its discriminating performance would be better than that of any individual discriminant as well as better than that yielded by the linear combination approach ignoring correlations among discriminants. This conclusion was also validated in this paper by applying the Bayesian approach to the above-mentioned observed data.

  20. RANKINGTHEREFACTORING TECHNIQUES BASED ON THE INTERNAL QUALITY ATTRIBUTES

    Directory of Open Access Journals (Sweden)

    Sultan Alshehri

    2014-01-01

    Full Text Available The analytic hierarchy process (AHP has been applied in many fields and especially to complex engineering problems and applications. The AHP is capable of structuring decision problems and finding mathematically determined judgments built on knowledge and experience. This suggests that AHP should prove useful in agile software development where complex decisions occur routinely. In this paper, the AHP is used to rank the refactoring techniques based on the internal code quality attributes. XP encourages applying the refactoring where the code smells bad. However, refactoring may consume more time and efforts.So, to maximize the benefits of the refactoring in less time and effort, AHP has been applied to achieve this purpose. It was found that ranking the refactoring techniques helped the XP team to focus on the technique that improve the code and the XP development process in general.

  1. Competencies of specialised wound care nurses: a European Delphi study.

    Science.gov (United States)

    Eskes, Anne M; Maaskant, Jolanda M; Holloway, Samantha; van Dijk, Nynke; Alves, Paulo; Legemate, Dink A; Ubbink, Dirk T; Vermeulen, Hester

    2014-12-01

    Health care professionals responsible for patients with complex wounds need a particular level of expertise and education to ensure optimum wound care. However, uniform education for those working as wound care nurses is lacking. We aimed to reach consensus among experts from six European countries as to the competencies for specialised wound care nurses that meet international professional expectations and educational systems. Wound care experts including doctors, wound care nurses, lecturers, managers and head nurses were invited to contribute to an e-Delphi study. They completed online questionnaires based on the Canadian Medical Education Directives for Specialists framework. Suggested competencies were rated on a 9-point Likert scale. Consensus was defined as an agreement of at least 75% for each competence. Response rates ranged from 62% (round 1) to 86% (rounds 2 and 3). The experts reached consensus on 77 (80%) competences. Most competencies chosen belonged to the domain 'scholar' (n = 19), whereas few addressed those associated with being a 'health advocate' (n = 7). Competencies related to professional knowledge and expertise, ethical integrity and patient commitment were considered most important. This consensus on core competencies for specialised wound care nurses may help achieve a more uniform definition and education for specialised wound care nurses.

  2. Core competencies for UK occupational health nurses: a Delphi study.

    Science.gov (United States)

    Lalloo, D; Demou, E; Kiran, S; Gaffney, M; Stevenson, M; Macdonald, E B

    2016-11-01

    Occupational health nurses (OHNs) play a pivotal role in the delivery of occupational health (OH) services. Specific competency guidance has been developed in a number of countries, including the UK. While it is acknowledged that UK OHN practice has evolved in recent years, there has been no formal research to capture these developments to ensure that training and curricula remain up-to-date and reflect current practice. To identify current priorities among UK OHNs of the competencies required for OH practice. A modified Delphi study undertaken among representative OHN networks in the UK. This formed part of a larger study including UK and international occupational physicians. The study was conducted in two rounds using a questionnaire based on available guidance on training competencies for OH practice, the published literature, expert panel reviews and conference discussions. Consensus among OHNs was high with 7 out of the 12 domains scoring 100% in rating. 'Good clinical care' was the principal domain ranked most important, followed by 'general principles of assessment & management of occupational hazards to health'. 'Research methods' and 'teaching & educational supervision' were considered least important. This study has established UK OHNs' current priorities on the competencies required for OH practice. The timing of this paper is opportune with the formal launch of the Faculty of Occupational Health Nursing planned in 2018 and should inform the development of competency requirements as part of the Faculty's goals for standard setting in OHN education and training.

  3. SOLID STATE ENERGY CONVERSION ALLIANCE DELPHI SOLID OXIDE FUEL CELL

    Energy Technology Data Exchange (ETDEWEB)

    Steven Shaffer; Sean Kelly; Subhasish Mukerjee; David Schumann; Gail Geiger; Kevin Keegan; John Noetzel; Larry Chick

    2003-12-08

    The objective of Phase I under this project is to develop a 5 kW Solid Oxide Fuel Cell power system for a range of fuels and applications. During Phase I, the following will be accomplished: Develop and demonstrate technology transfer efforts on a 5 kW stationary distributed power generation system that incorporates steam reforming of natural gas with the option of piped-in water (Demonstration System A). Initiate development of a 5 kW system for later mass-market automotive auxiliary power unit application, which will incorporate Catalytic Partial Oxidation (CPO) reforming of gasoline, with anode exhaust gas injected into an ultra-lean burn internal combustion engine. This technical progress report covers work performed by Delphi from January 1, 2003 to June 30, 2003, under Department of Energy Cooperative Agreement DE-FC-02NT41246. This report highlights technical results of the work performed under the following tasks: Task 1 System Design and Integration; Task 2 Solid Oxide Fuel Cell Stack Developments; Task 3 Reformer Developments; Task 4 Development of Balance of Plant (BOP) Components; Task 5 Manufacturing Development (Privately Funded); Task 6 System Fabrication; Task 7 System Testing; Task 8 Program Management; and Task 9 Stack Testing with Coal-Based Reformate.

  4. A combined ANP-delphi approach to evaluate sustainable tourism

    Energy Technology Data Exchange (ETDEWEB)

    Garcia-Melon, Monica, E-mail: mgarciam@dpi.upv.es [INGENIO (CSIC-UPV), Universitat Politecnica de Valencia, Camino de Vera s/n, 46022 Valencia (Spain); Gomez-Navarro, Tomas, E-mail: tgomez@dpi.upv.es [Depto. Proyectos Ingenieria, Universitat Politecnica de Valencia, Camino de Vera s/n 46022 Valencia (Spain); Acuna-Dutra, Silvia, E-mail: sacuna@unime.edu.ve [Universidad Metropolitana de Caracas, Caracas (Venezuela, Bolivarian Republic of)

    2012-04-15

    The evaluation of sustainable tourism strategies promoted by National Parks (NP) related stakeholders is a key concern for NP managers. To help them in their strategic evaluation procedures, in this paper we propose a methodology based on the Analytic Network Process and a Delphi-type judgment-ensuring procedure. The approach aims at involving stakeholders in a participatory and consensus-building process. The methodology was applied to Los Roques NP in Venezuela. The problem included three sustainable tourism strategies defined by the stakeholders: eco-efficient resorts, eco-friendly leisure activities and ecological transportation systems. Representatives of eight stakeholders participated in the methodology. 13 sustainability criteria were selected. Results provide some important insights into the overall philosophy and underlying participants' conception of what sustainable development of Los Roques NP means. This conception is broadly shared by stakeholders as they coincided in the weights of most of the criteria, which were assigned individually through the questionnaire. It is particularly noteworthy that tourists and environmentalists almost fully match in their assessments of criteria but not of the alternatives. Moreover, there is a great agreement in the final assessment. This suggests that the regular contact among the different stakeholders, i.e. tourists with inhabitants, authorities with environmentalists, tour operators with representatives of the ministry, etc. has led to a common understanding of the opportunities and threats for the NP. They all agreed that the procedure enhances participation and transparency and it is a necessary source of information and support for their decisions.

  5. Inhaled treatment of COPD: a Delphi consensus statement

    Science.gov (United States)

    Ninane, Vincent; Corhay, Jean-Louis; Germonpré, Paul; Janssens, Wim; Joos, Guy F; Liistro, Giuseppe; Vincken, Walter; Gurdain, Sandra; Vanvlasselaer, Evelyne; Lehouck, An

    2017-01-01

    Background Global Initiative for Chronic Obstructive Lung Disease (GOLD) global strategy (2015) provides guidance for the treatment of chronic obstructive pulmonary disease (COPD) with different first-choice options per GOLD category without specification. Objectives To evaluate the level of medical experts’ consensus on their preferred first-choice treatment within different COPD categories. Methods A two-round Delphi Panel consisting of 15 questions was completed by Belgian pulmonologists (n=31) and European (n=10) COPD experts. Results Good consensus was reached by both expert groups for long-acting bronchodilators instead of short-acting bronchodilators as first-choice treatment in GOLD A. Single bronchodilation with long-acting muscarinic antagonist (LAMA) was preferred over long-acting β2-agonist (LABA) and LABA/LAMA as first-choice treatment in GOLD B and GOLD C. For GOLD D patients based on the forced expiratory volume in 1 second (FEV1)ICS) as first choice in the Belgian group. According to the European experts, both LABA/LAMA and LABA/LAMA/ICS could be the first choice for these patients. Conclusion Belgian and European experts recommend long-acting bronchodilators as first-choice treatment. Treatment containing ICS was found only appropriate in patients with FEV1<50% and ≥2 moderate exacerbations or 1 severe exacerbation/year. PMID:28293106

  6. MEMS-Based Power Generation Techniques for Implantable Biosensing Applications

    Directory of Open Access Journals (Sweden)

    Jonathan Lueke

    2011-01-01

    Full Text Available Implantable biosensing is attractive for both medical monitoring and diagnostic applications. It is possible to monitor phenomena such as physical loads on joints or implants, vital signs, or osseointegration in vivo and in real time. Microelectromechanical (MEMS-based generation techniques can allow for the autonomous operation of implantable biosensors by generating electrical power to replace or supplement existing battery-based power systems. By supplementing existing battery-based power systems for implantable biosensors, the operational lifetime of the sensor is increased. In addition, the potential for a greater amount of available power allows additional components to be added to the biosensing module, such as computational and wireless and components, improving functionality and performance of the biosensor. Photovoltaic, thermovoltaic, micro fuel cell, electrostatic, electromagnetic, and piezoelectric based generation schemes are evaluated in this paper for applicability for implantable biosensing. MEMS-based generation techniques that harvest ambient energy, such as vibration, are much better suited for implantable biosensing applications than fuel-based approaches, producing up to milliwatts of electrical power. High power density MEMS-based approaches, such as piezoelectric and electromagnetic schemes, allow for supplemental and replacement power schemes for biosensing applications to improve device capabilities and performance. In addition, this may allow for the biosensor to be further miniaturized, reducing the need for relatively large batteries with respect to device size. This would cause the implanted biosensor to be less invasive, increasing the quality of care received by the patient.

  7. Autotööstuse Delphi juht ravib firmat pankrotiga / Mikk Salu

    Index Scriptorium Estoniae

    Salu, Mikk, 1975-

    2005-01-01

    Maailma suurima autoosade valmistaja Delphi tegevjuht Steve Miller, kes on kuulsaks saanud United Airlines'i ja Bethlehem Steel'i pankrotiga, kuulutas välja Delphi pankroti ning seadis ametiühingud valiku ette: kas kärbitakse palku või lõpetatakse pensionide maksmine. Lisa: Pensionikoorem. Diagramm: Delphi kuulutas välja pankroti

  8. 78 FR 48468 - Delphi Corporation, Electronics and Safety Division, Including On-Site Leased Workers From...

    Science.gov (United States)

    2013-08-08

    ... Employment and Training Administration Delphi Corporation, Electronics and Safety Division, Including On-Site... to workers of Delphi Corporation, Electronics and Safety Division, including on-site leased workers... Delphi Corporation, Electronics and Safety Division. The Department has determined that these...

  9. The Delphi Method as a Useful Tool to Study Governance and Protected Areas?

    NARCIS (Netherlands)

    Mehnen, Nora; Mose, Ingo; Strijker, Dirk

    2013-01-01

    The Delphi method is a systematic, interactive, written method, which relies on a panel of experts. This paper seeks to discuss whether the Delphi method is an appropriate method for obtaining information about governance. In this study we used the Delphi method to assemble information from 10 profe

  10. An Efficient Image Compression Technique Based on Arithmetic Coding

    Directory of Open Access Journals (Sweden)

    Prof. Rajendra Kumar Patel

    2012-12-01

    Full Text Available The rapid growth of digital imaging applications, including desktop publishing, multimedia, teleconferencing, and high visual definition has increased the need for effective and standardized image compression techniques. Digital Images play a very important role for describing the detailed information. The key obstacle for many applications is the vast amount of data required to represent a digital image directly. The various processes of digitizing the images to obtain it in the best quality for the more clear and accurate information leads to the requirement of more storage space and better storage and accessing mechanism in the form of hardware or software. In this paper we concentrate mainly on the above flaw so that we reduce the space with best quality image compression. State-ofthe-art techniques can compress typical images from 1/10 to 1/50 their uncompressed size without visibly affecting image quality. From our study I observe that there is a need of good image compression technique which provides better reduction technique in terms of storage and quality. Arithmetic coding is the best way to reducing encoding data. So in this paper we propose arithmetic coding with walsh transformation based image compression technique which is an efficient way of reduction

  11. SMS Spam Filtering Technique Based on Artificial Immune System

    Directory of Open Access Journals (Sweden)

    Tarek M Mahmoud

    2012-03-01

    Full Text Available The Short Message Service (SMS have an important economic impact for end users and service providers. Spam is a serious universal problem that causes problems for almost all users. Several studies have been presented, including implementations of spam filters that prevent spam from reaching their destination. Nave Bayesian algorithm is one of the most effective approaches used in filtering techniques. The computational power of smart phones are increasing, making increasingly possible to perform spam filtering at these devices as a mobile agent application, leading to better personalization and effectiveness. The challenge of filtering SMS spam is that the short messages often consist of few words composed of abbreviations and idioms. In this paper, we propose an anti-spam technique based on Artificial Immune System (AIS for filtering SMS spam messages. The proposed technique utilizes a set of some features that can be used as inputs to spam detection model. The idea is to classify message using trained dataset that contains Phone Numbers, Spam Words, and Detectors. Our proposed technique utilizes a double collection of bulk SMS messages Spam and Ham in the training process. We state a set of stages that help us to build dataset such as tokenizer, stop word filter, and training process. Experimental results presented in this paper are based on iPhone Operating System (iOS. The results applied to the testing messages show that the proposed system can classify the SMS spam and ham with accurate compared with Nave Bayesian algorithm.

  12. Characterization techniques for graphene-based materials in catalysis

    Directory of Open Access Journals (Sweden)

    Maocong Hu

    2017-06-01

    Full Text Available Graphene-based materials have been studied in a wide range of applications including catalysis due to the outstanding electronic, thermal, and mechanical properties. The unprecedented features of graphene-based catalysts, which are believed to be responsible for their superior performance, have been characterized by many techniques. In this article, we comprehensively summarized the characterization methods covering bulk and surface structure analysis, chemisorption ability determination, and reaction mechanism investigation. We reviewed the advantages/disadvantages of different techniques including Raman spectroscopy, X-ray photoelectron spectroscopy (XPS, Fourier transform infrared spectroscopy (FTIR and Diffuse Reflectance Fourier Transform Infrared Spectroscopy (DRIFTS, X-Ray diffraction (XRD, X-ray absorption near edge structure (XANES and X-ray absorption fine structure (XAFS, atomic force microscopy (AFM, scanning electron microscopy (SEM, transmission electron microscopy (TEM, high-resolution transmission electron microscopy (HRTEM, ultraviolet-visible spectroscopy (UV-vis, X-ray fluorescence (XRF, inductively coupled plasma mass spectrometry (ICP, thermogravimetric analysis (TGA, Brunauer–Emmett–Teller (BET, and scanning tunneling microscopy (STM. The application of temperature-programmed reduction (TPR, CO chemisorption, and NH3/CO2-temperature-programmed desorption (TPD was also briefly introduced. Finally, we discussed the challenges and provided possible suggestions on choosing characterization techniques. This review provides key information to catalysis community to adopt suitable characterization techniques for their research.

  13. The DELPHI Detector (DEtector with Lepton Photon and Hadron Identification)

    CERN Multimedia

    Crawley, B; Munich, K; Mckay, R; Matorras, F; Joram, C; Malychev, V; Behrmann, A; Van dam, P; Drees, J K; Stocchi, A; Adam, W; Booth, P; Bilenki, M; Rosenberg, E I; Morton, G; Rames, J; Hahn, S; Cosme, G; Ventura, L; Marco, J; Tortosa martinez, P; Monge silvestri, R; Moreno, S; Phillips, H; Alekseev, G; Boudinov, E; Martinez rivero, C; Gitarskiy, L; Davenport, M; De clercq, C; Firestone, A; Myagkov, A; Belous, K; Haider, S; Hamilton, K M; Lamsa, J; Rahmani, M H; Malek, A; Hughes, G J; Peralta, L; Carroll, L; Fuster verdu, J A; Cossutti, F; Gorn, L; Yi, J I; Bertrand, D; Myatt, G; Richard, F; Shapkin, M; Hahn, F; Ferrer soria, A; Reinhardt, R; Renton, P; Sekulin, R; Timmermans, J; Baillon, P

    2002-01-01

    % DELPHI The DELPHI Detector (Detector with Lepton Photon and Hadron Identification) \\\\ \\\\DELPHI is a general purpose detector for physics at LEP on and above the Z$^0$, offering three-dimensional information on curvature and energy deposition with fine spatial granularity as well as identification of leptons and hadrons over most of the solid angle. A superconducting coil provides a 1.2~T solenoidal field of high uniformity. Tracking relies on the silicon vertex detector, the inner detector, the Time Projection Chamber (TPC), the outer detector and forward drift chambers. Electromagnetic showers are measured in the barrel with high granularity by the High Density Projection Chamber (HPC) and in the endcaps by $ 1 ^0 $~x~$ 1 ^0 $ projective towers composed of lead glass as active material and phototriode read-out. Hadron identification is provided mainly by liquid and gas Ring Imaging Counters (RICH). The instrumented magnet yoke serves for hadron calorimetry and as filter for muons, which are identified in t...

  14. Earthquake Analysis of Structure by Base Isolation Technique in SAP

    Directory of Open Access Journals (Sweden)

    T. Subramani

    2014-06-01

    Full Text Available This paper presents an overview of the present state of base isolation techniques with special emphasis and a brief on other techniques developed world over for mitigating earthquake forces on the structures. The dynamic analysis procedure for isolated structures is briefly explained. The provisions of FEMA 450 for base isolated structures are highlighted. The effects of base isolation on structures located on soft soils and near active faults are given in brief. Simple case study on natural base isolation using naturally available soils is presented. Also, the future areas of research are indicated. Earthquakes are one of nature IS greatest hazards; throughout historic time they have caused significant loss offline and severe damage to property, especially to man-made structures. On the other hand, earthquakes provide architects and engineers with a number of important design criteria foreign to the normal design process. From well established procedures reviewed by many researchers, seismic isolation may be used to provide an effective solution for a wide range of seismic design problems. The application of the base isolation techniques to protect structures against damage from earthquake attacks has been considered as one of the most effective approaches and has gained increasing acceptance during the last two decades. This is because base isolation limits the effects of the earthquake attack, a flexible base largely decoupling the structure from the ground motion, and the structural response accelerations are usually less than the ground acceleration. In general, the increase of additional viscous damping in the structure may reduce displacement and acceleration responses of the structure. This study also seeks to evaluate the effects of additional damping on the seismic response when compared with structures without additional damping for the different ground motions.

  15. Finding Within Cluster Dense Regions Using Distance Based Technique

    Directory of Open Access Journals (Sweden)

    Wesam Ashour

    2012-03-01

    Full Text Available One of the main categories in Data Clustering is density based clustering. Density based clustering techniques like DBSCAN are attractive because they can find arbitrary shaped clusters along with noisy outlier. The main weakness of the traditional density based algorithms like DBSCAN is clustering the different density level data sets. DBSCAN calculations done according to given parameters applied to all points in a data set, while densities of the data set clusters may be totally different. The proposed algorithm overcomes this weakness of the traditional density based algorithms. The algorithm starts with partitioning the data within a cluster to units based on a user parameter and compute the density for each unit separately. Consequently, the algorithm compares the results and merges neighboring units with closer approximate density values to become a new cluster. The experimental results of the simulation show that the proposed algorithm gives good results in finding clusters for different density cluster data set.

  16. Determination of Innovation Capability of Organizations: Qualitative Meta Synthesis and Delphi Method

    DEFF Research Database (Denmark)

    Momeni, Mostafa; Nielsen, Susanne Balslev; Kafash, Mahdi Haghighi

    2015-01-01

    in this rapidly changing world. This research focuses on recognition of the aspects of innovation capability and proposes a conceptual model based on a qualitative Meta-Analysis of academic literature on organisations innovation capability. This is proposed for the development of the concept of innovation...... capability in the organizations and this paper includes an expert based validation in three rounds of the Delphi method. This research proposed a direct relationship between Innovation Capability and three main capabilities that is called Structural Capability, Personnel Capability and Operational Capability...

  17. Gabor-based fusion technique for Optical Coherence Microscopy.

    Science.gov (United States)

    Rolland, Jannick P; Meemon, Panomsak; Murali, Supraja; Thompson, Kevin P; Lee, Kye-sung

    2010-02-15

    We recently reported on an Optical Coherence Microscopy technique, whose innovation intrinsically builds on a recently reported - 2 microm invariant lateral resolution by design throughout a 2 mm cubic full-field of view - liquid-lens-based dynamic focusing optical probe [Murali et al., Optics Letters 34, 145-147, 2009]. We shall report in this paper on the image acquisition enabled by this optical probe when combined with an automatic data fusion method developed and described here to produce an in-focus high resolution image throughout the imaging depth of the sample. An African frog tadpole (Xenopus laevis) was imaged with the novel probe and the Gabor-based fusion technique, demonstrating subcellular resolution in a 0.5 mm (lateral) x 0.5 mm (axial) without the need, for the first time, for x-y translation stages, depth scanning, high-cost adaptive optics, or manual intervention. In vivo images of human skin are also presented.

  18. Clustering economies based on multiple criteria decision making techniques

    OpenAIRE

    2011-01-01

    One of the primary concerns on many countries is to determine different important factors affecting economic growth. In this paper, we study some factors such as unemployment rate, inflation ratio, population growth, average annual income, etc to cluster different countries. The proposed model of this paper uses analytical hierarchy process (AHP) to prioritize the criteria and then uses a K-mean technique to cluster 59 countries based on the ranked criteria into four groups. The first group i...

  19. Ultrabroadband Phased-Array Receivers Based on Optical Techniques

    Science.gov (United States)

    2016-02-26

    AFRL-AFOSR-VA-TR-2016-0121 Ultrabroadband Phased-array Receivers Based on Optical Techniques Christopher Schuetz UNIVERSITY OF DELAWARE Final Report...NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) University of Delaware 210 Hullihen Hall Newark, DE 19716 8. PERFORMING ORGANIZATION...Rev. 8/98) Prescribed by ANSI Std . Z39.18 Adobe Professional 7.0 Reset INSTRUCTIONS FOR COMPLETING SF 298 1. REPORT DATE. Full publication date

  20. Identifying Markers of Dignity-Conserving Care in Long-Term Care: A Modified Delphi Study.

    Directory of Open Access Journals (Sweden)

    Genevieve N Thompson

    Full Text Available Ensuring that people living in nursing homes (NHs are afforded with dignity in their daily lives is an essential and humane concern. Promoting dignity-conserving care is fundamentally important. By nature, however, this care is all-encompassing and holistic, and from current knowledge it is challenging to create explicit strategies for measuring dignity-conserving care. In practice the majority of current NH indicators of quality care are derived from information that is routinely collected on NH residents using the RAI-Minimum Data Set (MDS. In this regard, issues that are more tangible to resident dignity such as being treated with respect, compassion, and having opportunities to engage with others are not adequately captured in current NH quality of care indicators. An initial set of markers was created by conducting an integrative literature review of existing markers and indicators of dignity in the NH setting. A modified Delphi process was used to prioritize essential dignity-conserving care markers for use by NH providers, based on factors such as the importance to fostering a culture of dignity, the impact it may have on the residents, and how achievable it is in practice. Through this consensus building technique, we were able to develop a comprehensive set of markers that capture the range and diversity of important dignity-conserving care strategies for use in NHs. The final 10 markers were judged as having high face validity by experts in the field and have explicit implications for enhancing the provision of daily dignified care to NH residents. These markers make an important addition to the traditional quality indicators used in the NH setting and as such, bridge an important gap in addressing the psychosocial and the less easily quantified needs of NH residents.

  1. Comparative analysis of affinity-based 5-hydroxymethylation enrichment techniques

    Science.gov (United States)

    Thomson, John P.; Hunter, Jennifer M.; Nestor, Colm E.; Dunican, Donncha S.; Terranova, Rémi; Moggs, Jonathan G.; Meehan, Richard R.

    2013-01-01

    The epigenetic modification of 5-hydroxymethylcytosine (5hmC) is receiving great attention due to its potential role in DNA methylation reprogramming and as a cell state identifier. Given this interest, it is important to identify reliable and cost-effective methods for the enrichment of 5hmC marked DNA for downstream analysis. We tested three commonly used affinity-based enrichment techniques; (i) antibody, (ii) chemical capture and (iii) protein affinity enrichment and assessed their ability to accurately and reproducibly report 5hmC profiles in mouse tissues containing high (brain) and lower (liver) levels of 5hmC. The protein-affinity technique is a poor reporter of 5hmC profiles, delivering 5hmC patterns that are incompatible with other methods. Both antibody and chemical capture-based techniques generate highly similar genome-wide patterns for 5hmC, which are independently validated by standard quantitative PCR (qPCR) and glucosyl-sensitive restriction enzyme digestion (gRES-qPCR). Both antibody and chemical capture generated profiles reproducibly link to unique chromatin modification profiles associated with 5hmC. However, there appears to be a slight bias of the antibody to bind to regions of DNA rich in simple repeats. Ultimately, the increased specificity observed with chemical capture-based approaches makes this an attractive method for the analysis of locus-specific or genome-wide patterns of 5hmC. PMID:24214958

  2. Online Collaborative Learning Enhancement Through the Delphi Method

    Directory of Open Access Journals (Sweden)

    Zheng LI

    2006-04-01

    Full Text Available A variety of field trials have been conducted at NJIT in the past few years to demonstrate the utility of a Delphi-like approach to promoting asynchronous class wide collaboration. These utilized the Social Decision Support System (SDSS originally developed as a Computer Mediated Communication (CMC system for large group decision support. This paper provides an overview of these studies and then focuses on a recent case study in the fall of 2003 that demonstrated the ability of a computer mediated asynchronous Delphi process as a tool to scaffold collaborative idea generation and evaluation in both face to face and distance courses.

  3. Operation, optimisation, and performance of the DELPHI RICH detectors

    CERN Document Server

    Albrecht, E; Augustinus, A; Baillon, Paul; Battaglia, Marco; Bloch, D; Boudinov, E; Brunet, J M; Carrié, P; Cavalli, P; Christophel, E; Davenport, M; Dracos, M; Eklund, L; Erzen, B; Fischer, P A; Fokitis, E; Fontanelli, F; Gracco, Valerio; Hallgren, A; Joram, C; Juillot, P; Kjaer, N J; Kluit, P M; Lenzen, G; Liko, D; Mahon, J R; Maltezos, S; Markou, A; Neufeld, N; Nielsen, B S; Petrolini, A; Podobnik, T; Polok, G; Sajot, G; Sannino, M; Schyns, E; Strub, R; Tegenfeldt, F; Thadome, J; Tristram, G; Ullaland, O; Vulpen, I V

    1999-01-01

    The Ring Imaging Cherenkov detectors of DELPHI represent a large-scale particle identification system which covers almost the full angular acceptance of DELPHI. The combination of liquid and gas radiators (C sub 4 F sub 1 sub 0 , C sub 5 F sub 1 sub 2 , and C sub 6 F sub 1 sub 4) provides particle identification over the whole secondary particle momentum spectrum at LEP I and LEP II. Continuing optimisation on the hardware as well as on the online and offline software level have resulted in a stable operation of the complete detector system for more than five years at full physics performance.

  4. Measurement of the tau lifetime with the DELPHI detector

    CERN Document Server

    Andreazza, Attilio

    2005-01-01

    The tau lepton lifetime has been measured with the $e^{+}e^{-}$ to tau /sup +/ tau /sup -/ events collected by the DELPHI detector at LEP in the years 1991-1995. Three different methods have been exploited, using both one-prong and three-prong tau decay channels. These are combined with previously published DELPHI results to provide a tau lifetime measurement of tau /sub tau /=290.9+or-1.4/sub stat/+or-1.0/sub sys/ fs, using the full LEP1 data sample.

  5. Comparing Four Touch-Based Interaction Techniques for an Image-Based Audience Response System

    NARCIS (Netherlands)

    Jorritsma, Wiard; Prins, Jonatan T.; van Ooijen, Peter M. A.

    2015-01-01

    This study aimed to determine the most appropriate touch-based interaction technique for I2Vote, an image-based audience response system for radiology education in which users need to accurately mark a target on a medical image. Four plausible techniques were identified: land-on, take-off, zoom-poin

  6. User Identification Detector Based on Power of R Technique

    Institute of Scientific and Technical Information of China (English)

    WANG Chun-jiang; YU Quan; LIU Yuan-an

    2005-01-01

    To avoid the inaccurate estimation of the active user's number and the corresponding performance degradation, a novel POR-based User Identification Detector (UID) is proposed for the Code Division Multiple Access (CDMA) systems. The new detector adopts the Power of R (POR) technique and the Multiple Signal Classification (MUSIC) method, which does not require the estimation of active users' number, and obtains lower false alarm probability than the subspace-based UID in the multipath channels. However, from our analysis, increasing the order m does not improve the performance. Therefore, when m is one, the performance of the new detector is maximal.

  7. NEW VERSATILE CAMERA CALIBRATION TECHNIQUE BASED ON LINEAR RECTIFICATION

    Institute of Scientific and Technical Information of China (English)

    Pan Feng; Wang Xuanyin

    2004-01-01

    A new versatile camera calibration technique for machine vision using off-the-shelf cameras is described. Aimed at the large distortion of the off-the-shelf cameras, a new camera distortion rectification technology based on line-rectification is proposed. A full-camera-distortion model is introduced and a linear algorithm is provided to obtain the solution. After the camera rectification intrinsic and extrinsic parameters are obtained based on the relationship between the homograph and absolute conic. This technology needs neither a high-accuracy three-dimensional calibration block, nor a complicated translation or rotation platform. Both simulations and experiments show that this method is effective and robust.

  8. Identifying management competencies for health care executives: review of a series of Delphi studies.

    Science.gov (United States)

    Hudak, R P; Brooke, P P; Finstuen, K

    2000-01-01

    This analysis reviews a selected body of research that identifies the essential areas of management expertise required of future health care executives. To ensure consistency, six studies are analyzed, utilizing the Delphi technique, to query a broad spectrum of experts in different fields and sites of health care management. The analysis identifies a number of management competencies, i.e., managerial capabilities, which current and aspiring health care executives, in various settings and with differing educational backgrounds, should possess to enhance the probability of their success in current and future positions of responsibility. In addition, this review identifies the skills (technical expertise), knowledge (facts and principles) and abilities (physical, mental or legal power) required to support achievement of these competencies. Leadership and resource management, including cost and finance dimensions, are the highest-rated requisite management competencies. The dominant skills, knowledge and abilities (SKAs) are related to interpersonal skills. The lowest-rated SKAs are related to job-specific, technical skills. Recommendations include the review of this research by formal and continuing education programs to determine the content of their courses and areas for future research. Similarly, current health care executives should assess this research to assist in identifying competency gaps. Lastly, this analysis recommends that the Delphi technique, as a valid and replicable methodology, be applied toward the study of non-executive health care managers, e.g., students, clinicians, mid-level managers and integrated systems administrators, to determine their requisite management competencies and SKAs.

  9. A Different Web-Based Geocoding Service Using Fuzzy Techniques

    Science.gov (United States)

    Pahlavani, P.; Abbaspour, R. A.; Zare Zadiny, A.

    2015-12-01

    Geocoding - the process of finding position based on descriptive data such as address or postal code - is considered as one of the most commonly used spatial analyses. Many online map providers such as Google Maps, Bing Maps and Yahoo Maps present geocoding as one of their basic capabilities. Despite the diversity of geocoding services, users usually face some limitations when they use available online geocoding services. In existing geocoding services, proximity and nearness concept is not modelled appropriately as well as these services search address only by address matching based on descriptive data. In addition there are also some limitations in display searching results. Resolving these limitations can enhance efficiency of the existing geocoding services. This paper proposes the idea of integrating fuzzy technique with geocoding process to resolve these limitations. In order to implement the proposed method, a web-based system is designed. In proposed method, nearness to places is defined by fuzzy membership functions and multiple fuzzy distance maps are created. Then these fuzzy distance maps are integrated using fuzzy overlay technique for obtain the results. Proposed methods provides different capabilities for users such as ability to search multi-part addresses, searching places based on their location, non-point representation of results as well as displaying search results based on their priority.

  10. A DIFFERENT WEB-BASED GEOCODING SERVICE USING FUZZY TECHNIQUES

    Directory of Open Access Journals (Sweden)

    P. Pahlavani

    2015-12-01

    Full Text Available Geocoding – the process of finding position based on descriptive data such as address or postal code - is considered as one of the most commonly used spatial analyses. Many online map providers such as Google Maps, Bing Maps and Yahoo Maps present geocoding as one of their basic capabilities. Despite the diversity of geocoding services, users usually face some limitations when they use available online geocoding services. In existing geocoding services, proximity and nearness concept is not modelled appropriately as well as these services search address only by address matching based on descriptive data. In addition there are also some limitations in display searching results. Resolving these limitations can enhance efficiency of the existing geocoding services. This paper proposes the idea of integrating fuzzy technique with geocoding process to resolve these limitations. In order to implement the proposed method, a web-based system is designed. In proposed method, nearness to places is defined by fuzzy membership functions and multiple fuzzy distance maps are created. Then these fuzzy distance maps are integrated using fuzzy overlay technique for obtain the results. Proposed methods provides different capabilities for users such as ability to search multi-part addresses, searching places based on their location, non-point representation of results as well as displaying search results based on their priority.

  11. Nasal base narrowing: the alar flap advancement technique.

    Science.gov (United States)

    Ismail, Ahmed Soliman

    2011-01-01

    To evaluate the role of creating an alar-based advancement flap in narrowing the nasal base and correcting excessive alar flare. Case series with chart review. This is a retrospective record review study. The study included 35 cases presenting with a wide nasal base and excessive alar flaring. The surgical procedure combined the alar base reduction with alar flare excision by creating a single laterally based alar flap. Any caudal septal deformities and any nasal tip modification procedures were corrected before the nasal base narrowing. The mean follow-up period was 23 months. The mean alar flap narrowing was 6.3 mm, whereas the mean width of sill narrowing was 2.9 mm. This single laterally based advancement alar flap resulted in a more conservative external resection, thus avoiding alar wedge overresection or blunting of the alar-facial crease. No cases of postoperative bleeding, infection, or keloid were encountered, and the external alar wedge excision healed with no apparent scar that was hidden in the depth of the alar-facial crease. The risk of notching of the alar rim at the sill incision is reduced by adopting a 2-layer closure of the vestibular floor. The alar base advancement flap is an effective technique in narrowing both the nasal base and excessive alar flare. It adopts a single skin excision to correct the 2 deformities while commonly feared complications were avoided.

  12. Performance Based Novel Techniques for Semantic Web Mining

    Directory of Open Access Journals (Sweden)

    Mahendra Thakur

    2012-01-01

    Full Text Available The explosive growth in the size and use of the World Wide Web continuously creates new great challenges and needs. The need for predicting the users preferences in order to expedite and improve the browsing though a site can be achieved through personalizing of the websites. Most of the research efforts in web personalization correspond to the evolution of extensive research in web usage mining, i.e. the exploitation of the navigational patterns of the web site visitors. When a personalization system relies solely on usage-based results, however, valuable information conceptually related to what is finally recommended may be missed. Moreover, the structural properties of the web site are often disregarded. In this paper, we propose novel techniques that use the content semantics and the structural properties of a web site in order to improve the effectiveness of web personalization. In the first part of our work we present standing for Semantic Web Personalization, a personalization system that integrates usage data with content semantics, expressed in ontology terms, in order to compute semantically enhanced navigational patterns and effectively generate useful recommendations. To the best of our knowledge, our proposed technique is the only semantic web personalization system that may be used by non-semantic web sites. In the second part of our work, we present a novel approach for enhancing the quality of recommendations based on the underlying structure of a web site. We introduce UPR (Usage-based PageRank, a PageRank-style algorithm that relies on the recorded usage data and link analysis techniques. Overall, we demonstrate that our proposed hybrid personalization framework results in more objective and representative predictions than existing techniques.

  13. GIS Based Stereoscopic Visualization Technique for Weather Radar Data

    Science.gov (United States)

    Lim, S.; Jang, B. J.; Lee, K. H.; Lee, C.; Kim, W.

    2014-12-01

    As rainfall characteristic is more quixotic and localized, it is important to provide a prompt and accurate warning for public. To monitor localized heavy rainfall, a reliable disaster monitoring system with advanced remote observation technology and high-precision display system is needed. To advance even more accurate weather monitoring using weather radar, there have been growing concerns regarding the real-time changes of mapping radar observations on geographical coordinate systems along with the visualization and display methods of radar data based on spatial interpolation techniques and geographical information system (GIS). Currently, the method of simultaneously displaying GIS and radar data is widely used to synchronize the radar and ground systems accurately, and the method of displaying radar data in the 2D GIS coordinate system has been extensively used as the display method for providing weather information from weather radar. This paper proposes a realistic 3D weather radar data display technique with higher spatiotemporal resolution, which is based on the integration of 3D image processing and GIS interaction. This method is focused on stereoscopic visualization, while conventional radar image display works are based on flat or two-dimensional interpretation. Furthermore, using the proposed technique, the atmospheric change at each moment can be observed three-dimensionally at various geological locations simultaneously. Simulation results indicate that 3D display of weather radar data can be performed in real time. One merit of the proposed technique is that it can provide intuitive understanding of the influence of beam blockage by topography. Through an exact matching each 3D modeled radar beam with 3D GIS map, we can find out the terrain masked areas and accordingly it facilitates the precipitation correction from QPE underestimation caused by ground clutter filtering. It can also be expected that more accurate short-term forecasting will be

  14. Laser image denoising technique based on multi-fractal theory

    Science.gov (United States)

    Du, Lin; Sun, Huayan; Tian, Weiqing; Wang, Shuai

    2014-02-01

    The noise of laser images is complex, which includes additive noise and multiplicative noise. Considering the features of laser images, the basic processing capacity and defects of the common algorithm, this paper introduces the fractal theory into the research of laser image denoising. The research of laser image denoising is implemented mainly through the analysis of the singularity exponent of each pixel in fractal space and the feature of multi-fractal spectrum. According to the quantitative and qualitative evaluation of the processed image, the laser image processing technique based on fractal theory not only effectively removes the complicated noise of the laser images obtained by range-gated laser active imaging system, but can also maintains the detail information when implementing the image denoising processing. For different laser images, multi-fractal denoising technique can increase SNR of the laser image at least 1~2dB compared with other denoising techniques, which basically meet the needs of the laser image denoising technique.

  15. Regression based peak load forecasting using a transformation technique

    Energy Technology Data Exchange (ETDEWEB)

    Haida, Takeshi; Muto, Shoichi (Tokyo Electric Power Co. (Japan). Computer and Communication Research Center)

    1994-11-01

    This paper presents a regression based daily peak load forecasting method with a transformation technique. In order to forecast the load precisely through a year, the authors should consider seasonal load change, annual load growth and the latest daily load change. To deal with these characteristics in the load forecasting, a transformation technique is presented. This technique consists of a transformation function with translation and reflection methods. The transformation function is estimated with the previous year's data points, in order that the function converts the data points into a set of new data points with preserving the shape of temperature-load relationships in the previous year. Then, the function is slightly translated so that the transformed data points will fit the shape of temperature-load relationships in the year. Finally, multivariate regression analysis with the latest daily loads and weather observations estimates the forecasting model. Large forecasting errors caused by the weather-load nonlinear characteristic in the transitional seasons such as spring and fall are reduced. Performance of the technique which is verified with simulations on actual load data of Tokyo Electric Power Company is also described.

  16. Noninvasive in vivo glucose sensing using an iris based technique

    Science.gov (United States)

    Webb, Anthony J.; Cameron, Brent D.

    2011-03-01

    Physiological glucose monitoring is important aspect in the treatment of individuals afflicted with diabetes mellitus. Although invasive techniques for glucose monitoring are widely available, it would be very beneficial to make such measurements in a noninvasive manner. In this study, a New Zealand White (NZW) rabbit animal model was utilized to evaluate a developed iris-based imaging technique for the in vivo measurement of physiological glucose concentration. The animals were anesthetized with isoflurane and an insulin/dextrose protocol was used to control blood glucose concentration. To further help restrict eye movement, a developed ocular fixation device was used. During the experimental time frame, near infrared illuminated iris images were acquired along with corresponding discrete blood glucose measurements taken with a handheld glucometer. Calibration was performed using an image based Partial Least Squares (PLS) technique. Independent validation was also performed to assess model performance along with Clarke Error Grid Analysis (CEGA). Initial validation results were promising and show that a high percentage of the predicted glucose concentrations are within 20% of the reference values.

  17. IMAGE SEGMENTATION BASED ON MARKOV RANDOM FIELD AND WATERSHED TECHNIQUES

    Institute of Scientific and Technical Information of China (English)

    纳瑟; 刘重庆

    2002-01-01

    This paper presented a method that incorporates Markov Random Field(MRF), watershed segmentation and merging techniques for performing image segmentation and edge detection tasks. MRF is used to obtain an initial estimate of x regions in the image under process where in MRF model, gray level x, at pixel location i, in an image X, depends on the gray levels of neighboring pixels. The process needs an initial segmented result. An initial segmentation is got based on K-means clustering technique and the minimum distance, then the region process in modeled by MRF to obtain an image contains different intensity regions. Starting from this we calculate the gradient values of that image and then employ a watershed technique. When using MRF method it obtains an image that has different intensity regions and has all the edge and region information, then it improves the segmentation result by superimpose closed and an accurate boundary of each region using watershed algorithm. After all pixels of the segmented regions have been processed, a map of primitive region with edges is generated. Finally, a merge process based on averaged mean values is employed. The final segmentation and edge detection result is one closed boundary per actual region in the image.

  18. Efficient Identification Using a Prime-Feature-Based Technique

    DEFF Research Database (Denmark)

    Hussain, Dil Muhammad Akbar; Haq, Shaiq A.; Valente, Andrea

    2011-01-01

    Identification of authorized train drivers through biometrics is a growing area of interest in locomotive radio remote control systems. The existing technique of password authentication is not very reliable and potentially unauthorized personnel may also operate the system on behalf of the operator....... Fingerprint identification system, implemented on PC/104 based real-time systems, can accurately identify the operator. Traditionally, the uniqueness of a fingerprint is determined by the overall pattern of ridges and valleys as well as the local ridge anomalies e.g., a ridge bifurcation or a ridge ending...... in this paper. The technique involves identifying the most prominent feature of the fingerprint and searching only for that feature in the database to expedite the search process. The proposed architect provides efficient matching process and indexing feature for identification is unique....

  19. An Improved Face Recognition Technique Based on Modular LPCA Approach

    Directory of Open Access Journals (Sweden)

    Mathu S.S. Kumar

    2011-01-01

    Full Text Available Problem statement: A face identification algorithm based on modular localized variation by Eigen Subspace technique, also called modular localized principal component analysis, is presented in this study. Approach: The face imagery was partitioned into smaller sub-divisions from a predefined neighborhood and they were ultimately fused to acquire many sets of features. Since a few of the normal facial features of an individual do not differ even when the pose and illumination may differ, the proposed method manages these variations. Results: The proposed feature selection module has significantly, enhanced the identification precision using standard face databases when compared to conservative and modular PCA techniques. Conclusion: The proposed algorithm, when related with conservative PCA algorithm and modular PCA, has enhanced recognition accuracy for face imagery with illumination, expression and pose variations.

  20. Novel synchrotron based techniques for characterization of energy materials

    Energy Technology Data Exchange (ETDEWEB)

    Poulsen, H.F.; Nielsen, S.F.; Olsen, U.L.; Schmidt, S. (Risoe DTU, Materials Research Dept., Roskilde (Denmark)); Wright, J. (European Synchrotron Radiation Facility, Grenoble Cedex (France))

    2008-10-15

    Two synchrotron techniques are reviewed, both based on the use of high energy x-rays, and both applicable to in situ studies of bulk materials. Firstly, 3DXRD microscopy, which enables 3D characterization of the position, morphology, phase, elastic strain and crystallographic orientation of the individual embedded grains in polycrystalline specimens. In favourable cases, hundreds of grains can be studied simultaneously during processing. Secondly, plastic strain tomography: a unique method for determining the plastic strain field within materials during processing the potential applications of these techniques for basic and applied studies of four types of energy materials are discussed: polymer composites for wind turbines, solid oxide fuel cells, hydrogen storage materials and superconducting tapes. Furthermore, progress on new detectors aiming at improving the spatial and temporal resolution of such measurements is described. (au)

  1. New modulation-based watermarking technique for video

    Science.gov (United States)

    Lemma, Aweke; van der Veen, Michiel; Celik, Mehmet

    2006-02-01

    Successful watermarking algorithms have already been developed for various applications ranging from meta-data tagging to forensic tracking. Nevertheless, it is commendable to develop alternative watermarking techniques that provide a broader basis for meeting emerging services, usage models and security threats. To this end, we propose a new multiplicative watermarking technique for video, which is based on the principles of our successful MASK audio watermark. Audio-MASK has embedded the watermark by modulating the short-time envelope of the audio signal and performed detection using a simple envelope detector followed by a SPOMF (symmetrical phase-only matched filter). Video-MASK takes a similar approach and modulates the image luminance envelope. In addition, it incorporates a simple model to account for the luminance sensitivity of the HVS (human visual system). Preliminary tests show algorithms transparency and robustness to lossy compression.

  2. A VIKOR Technique with Applications Based on DEMATEL and ANP

    Science.gov (United States)

    Ou Yang, Yu-Ping; Shieh, How-Ming; Tzeng, Gwo-Hshiung

    In multiple criteria decision making (MCDM) methods, the compromise ranking method (named VIKOR) was introduced as one applicable technique to implement within MCDM. It was developed for multicriteria optimization of complex systems. However, few papers discuss conflicting (competing) criteria with dependence and feedback in the compromise solution method. Therefore, this study proposes and provides applications for a novel model using the VIKOR technique based on DEMATEL and the ANP to solve the problem of conflicting criteria with dependence and feedback. In addition, this research also uses DEMATEL to normalize the unweighted supermatrix of the ANP to suit the real world. An example is also presented to illustrate the proposed method with applications thereof. The results show the proposed method is suitable and effective in real-world applications.

  3. New Intellectual Economized Technique on Electricity Based on DSP

    Institute of Scientific and Technical Information of China (English)

    Chang-ming LI; Tao JI; Ying SUN

    2010-01-01

    In order to resolve the problem of the unbalanced threephase and unstable voltage,intellectual economized technique on electricity based on electromagnetic regulation and control is proposed in this paper.We choose the TMS320LF2407A as the control chip and stepper motor as the executing agency.The equipment controls the movable contact reaching to the assigned position on the magnetic coil quickly and accurately,and outputs the sine-wave voltage steadily along with the network voltage variation though the fuzzy Porpornonal Integral Derivative(PID)control algorithm of integral separation and incremental mode with setting dead area.The principle of work and the key technique on the electromagnetic regulation and control are introduced in detail in this paper.The experiment result gives a proof for all the algorithm mentioned in this paper.

  4. Feature-based multiresolution techniques for product design

    Institute of Scientific and Technical Information of China (English)

    LEE Sang Hun; LEE Kunwoo

    2006-01-01

    3D computer-aided design (CAD) systems based on feature-based solid modelling technique have been widely spread and used for product design. However, when part models associated with features are used in various downstream applications,simplified models in various levels of detail (LODs) are frequently more desirable than the full details of the parts. In particular,the need for feature-based multiresolution representation of a solid model representing an object at multiple LODs in the feature unit is increasing for engineering tasks. One challenge is to generate valid models at various LODs after an arbitrary rearrangement of features using a certain LOD criterion, because composite Boolean operations consisting of union and subtraction are not commutative. The other challenges are to devise proper topological framework for multiresolution representation, to suggest more reasonable LOD criteria, and to extend applications. This paper surveys the recent research on these issues.

  5. Prospective memory rehabilitation based on visual imagery techniques.

    Science.gov (United States)

    Potvin, Marie-Julie; Rouleau, Isabelle; Sénéchal, Geneviève; Giguère, Jean-François

    2011-12-01

    Despite the frequency of prospective memory (PM) problems in the traumatic brain injury (TBI) population, there are only a few rehabilitation programmes that have been specifically designed to address this issue, other than those using external compensatory strategies. In the present study, a PM rehabilitation programme based on visual imagery techniques expected to strengthen the cue-action association was developed. Ten moderate to severe chronic TBI patients learned to create a mental image representing the association between a prospective cue and an intended action within progressively more complex and naturalistic PM tasks. We hypothesised that compared to TBI patients (n = 20) who received a short session of education (control condition), TBI patients in the rehabilitation group would exhibit a greater improvement on the event-based than on the time-based condition of a PM ecological task. Results revealed however that this programme was similarly beneficial for both conditions. TBI patients in the rehabilitation group and their relatives also reported less everyday PM failures following the programme, which suggests generalisation. The PM improvement appears to be specific since results on cognitive control tasks remained similar. Therefore, visual imagery techniques appear to improve PM functioning by strengthening the memory trace of the intentions and inducing an automatic recall of the intentions.

  6. Antimisting kerosene: Base fuel effects, blending and quality control techniques

    Science.gov (United States)

    Yavrouian, A. H.; Ernest, J.; Sarohia, V.

    1984-01-01

    The problems associated with blending of the AMK additive with Jet A, and the base fuel effects on AMK properties are addressed. The results from the evaluation of some of the quality control techniques for AMK are presented. The principal conclusions of this investigation are: significant compositional differences for base fuel (Jet A) within the ASTM specification DI655; higher aromatic content of the base fuel was found to be beneficial for the polymer dissolution at ambient (20 C) temperature; using static mixer technology, the antimisting additive (FM-9) is in-line blended with Jet A, producing AMK which has adequate fire-protection properties 15 to 20 minutes after blending; degradability of freshly blended and equilibrated AMK indicated that maximum degradability is reached after adequate fire protection is obtained; the results of AMK degradability as measured by filter ratio, confirmed previous RAE data that power requirements to decade freshly blended AMK are significantly higher than equilibrated AMK; blending of the additive by using FM-9 concentrate in Jet A produces equilibrated AMK almost instantly; nephelometry offers a simple continuous monitoring capability and is used as a real time quality control device for AMK; and trajectory (jet thurst) and pressure drop tests are useful laboratory techniques for evaluating AMK quality.

  7. Rethinking clinical governance: healthcare professionals’ views: a Delphi study

    Science.gov (United States)

    Veenstra, Gepke L; Ahaus, Kees; Welker, Gera A; Heineman, Erik; van der Laan, Maarten J; Muntinghe, Friso L H

    2017-01-01

    Objective Although the guiding principle of clinical governance states that healthcare professionals are the leading contributors to quality and safety in healthcare, little is known about what healthcare professionals perceive as important for clinical governance. The aim of this study is to clarify this by exploring healthcare professionals' views on clinical governance. Design Based on a literature search, a list of 99 elements related to clinical governance was constructed. This list was refined, extended and restricted during a three-round Delphi study. Setting and participants The panel of experts was formed of 24 healthcare professionals from an academic hospital that is seen as a leader in terms of its clinical governance expertise in the Netherlands. Main outcome measures Rated importance of each element on a four-point scale. Results The 50 elements that the panel perceived as most important related to adopting a bottom-up approach to clinical governance, ownership, teamwork, learning from mistakes and feedback. The panel did not reach a consensus concerning elements that referred to patient involvement. Elements that referred to a managerial approach to clinical governance and standardisation of work were rejected by the panel. Conclusions In the views of the panel of experts, clinical governance is a practice-based, value-driven approach that has the goal of delivering the highest possible quality care and ensuring the safety of patients. Bottom-up approaches and effective teamwork are seen as crucial for high quality and safe healthcare. Striving for high quality and safe healthcare is underpinned by continuous learning, shared responsibility and good relationships and collaboration between healthcare professionals, managers and patients. PMID:28082364

  8. SOLID STATE ENERGY CONVERSION ALLIANCE DELPHI SOLID OXIDE FUEL CELL

    Energy Technology Data Exchange (ETDEWEB)

    Steven Shaffer; Sean Kelly; Subhasish Mukerjee; David Schumann; Gail Geiger; Kevin Keegan; Larry Chick

    2004-05-07

    The objective of this project is to develop a 5 kW Solid Oxide Fuel Cell power system for a range of fuels and applications. During Phase I, the following will be accomplished: Develop and demonstrate technology transfer efforts on a 5 kW stationary distributed power generation system that incorporates steam reforming of natural gas with the option of piped-in water (Demonstration System A). Initiate development of a 5 kW system for later mass-market automotive auxiliary power unit application, which will incorporate Catalytic Partial Oxidation (CPO) reforming of gasoline, with anode exhaust gas injected into an ultra-lean burn internal combustion engine. This technical progress report covers work performed by Delphi from July 1, 2003 to December 31, 2003, under Department of Energy Cooperative Agreement DE-FC-02NT41246. This report highlights technical results of the work performed under the following tasks: Task 1 System Design and Integration; Task 2 Solid Oxide Fuel Cell Stack Developments; Task 3 Reformer Developments; Task 4 Development of Balance of Plant (BOP) Components; Task 5 Manufacturing Development (Privately Funded); Task 6 System Fabrication; Task 7 System Testing; Task 8 Program Management; Task 9 Stack Testing with Coal-Based Reformate; and Task 10 Technology Transfer from SECA CORE Technology Program. In this reporting period, unless otherwise noted Task 6--System Fabrication and Task 7--System Testing will be reported within Task 1 System Design and Integration. Task 8--Program Management, Task 9--Stack Testing with Coal Based Reformate, and Task 10--Technology Transfer from SECA CORE Technology Program will be reported on in the Executive Summary section of this report.

  9. Open Educational Resources: A Delphi Study of Instructional Design Quality

    Science.gov (United States)

    Emerson, Marnice K.

    2013-01-01

    The purpose of this modified Delphi research study was to investigate instructional designers' beliefs about the instructional strategies and activities to be included in a universal framework for designing quality, self-directed, multimedia, open educational resources (OERs). With the rapid growth of availability and use of OERs by a widely…

  10. A Delphi Study and Initial Validation of Counselor Supervision Competencies

    Science.gov (United States)

    Neuer Colburn, Anita A.; Grothaus, Tim; Hays, Danica G.; Milliken, Tammi

    2016-01-01

    The authors addressed the lack of supervision training standards for doctoral counseling graduates by developing and validating an initial list of supervision competencies. They used content analysis, Delphi polling, and content validity methods to generate a list, vetted by 2 different panels of supervision experts, of 33 competencies grouped…

  11. The Delphi Method and Its Applications: A Bibliography

    Science.gov (United States)

    1976-06-01

    Futures Group, 1973. Gerstenfeld, Arthur. "Technological Forecasting." The Journal 1 of Business, 44, No. 1, January 1971. , Gibb , J.R., "The Effects of...Approach to Crosn-Impact Analysis," Vol. 3, No. 3 (197:!), TFSC. Turoff, Murray, "Delphi Conferencing: Computer- Fased Conferencing with Anonymity," Vol.3, No

  12. Determinants of forward stage transitions : a Delphi study

    NARCIS (Netherlands)

    De Vet, E; Brug, J; De Nooijer, J; Dijkstra, A; De Vries, NK

    2005-01-01

    Insight into stage transition determinants is necessary to develop and evaluate stage-tailored health-promoting interventions. A three-round Delphi study among stages of change researchers was conducted to make an inventory of opinions and examine agreement on determinants of forward transitions bet

  13. Why Do Student Nurses Leave? Suggestions from a Delphi Study.

    Science.gov (United States)

    Last, Lynn; Fulbrook, Paul

    2003-01-01

    Focus groups and interviews gathered professional opinions about why students leave nursing; results were formulated into a questionnaire administered to 32 students in a three-round Delphi. Factors contributing to attrition included theory-practice gap, university-clinical site relationships, unmet expectations, stress, and not feeling valued.…

  14. Identifying Threshold Concepts for Information Literacy: A Delphi Study

    Science.gov (United States)

    Townsend, Lori; Hofer, Amy R.; Hanick, Silvia Lin; Brunetti, Korey

    2016-01-01

    This study used the Delphi method to engage expert practitioners on the topic of threshold concepts--core ideas and processes in a discipline that students need to grasp in order to progress in their learning, but that are often unspoken or unrecognized by expert practitioners--for information literacy. A panel of experts considered two questions:…

  15. The DELPHI Trigger System at LEP2 energies

    Science.gov (United States)

    Augustinus, A.; Canale, V.; Charpentier, P.; de Wulf, J.-P.; Fontanelli, F.; Formenti, F.; Gaspar, C.; Gavillet, P.; Goorens, R.; Laugier, J. P.; Musico, P.; Paganoni, M.; Sannino, M.; Valenti, G.; Delphi Trigger Group

    2003-12-01

    In this paper we describe the modifications carried out on the DELPHI trigger complex since the beginning of the high-energy runs of LEP. The descriptions of the trigger configurations and performances for the 2000 data taking period are also presented.

  16. A cut-away diagram of the DELPHI experiment

    CERN Multimedia

    1996-01-01

    A diagram of the DELPHI end-cap and barrel. Detectors are used in layers to detect different particles produced by the collisions in the beam pipe at the vertex detector. Each detector makes many different measurements, which are read off to a system of computers for analysis.

  17. Helping Competencies of Student Affairs Professionals: A Delphi Study

    Science.gov (United States)

    Reynolds, Amy L.

    2011-01-01

    The purpose of this study was to gather student affairs professionals' perceptions of the knowledge and skills needed to effectively help students. Using the Delphi method, 159 entry-level and mid-level student affairs administrators from institutions across the United States were surveyed regarding their perceptions of the helping skills they use…

  18. DELPHI $\\tau$ lifetime results using all LEP-1 data

    CERN Document Server

    McNulty, R

    2001-01-01

    Using events collected by the DELPHI detector at LEP in the years 1991-1995, the tau lepton lifetime has been measured to be (290.7+-1.5+-1.0) fs. Three different methods have been exploited utilising decays of the tau into final states containing one or three charged tracks. (6 refs).

  19. Expert Consensus on Characteristics of Wisdom: A Delphi Method Study

    Science.gov (United States)

    Jeste, Dilip V.; Ardelt, Monika; Blazer, Dan; Kraemer, Helena C.; Vaillant, George; Meeks, Thomas W.

    2010-01-01

    Purpose: Wisdom has received increasing attention in empirical research in recent years, especially in gerontology and psychology, but consistent definitions of wisdom remain elusive. We sought to better characterize this concept via an expert consensus panel using a 2-phase Delphi method. Design and Methods: A survey questionnaire comprised 53…

  20. The DELPHI Trigger System at LEP2 Energies

    CERN Document Server

    Augustinus, A; Charpentier, P; De Wulf, J P; Fontanelli, F; Formenti, F; Gaspar, C; Gavillet, P; Goorens, R; Laugier, J P; Musico, P; Paganoni, M; Sannino, M; Valenti, G

    2003-01-01

    In this paper we describe the modifications carried out on the DELPHI trigger complex since the beginning of the high energy runs of LEP. The descriptions of the trigger configurations and performances for the 2000 data taking period are also presented.

  1. Business intelligence and service-oriented architecture: a Delphi study

    NARCIS (Netherlands)

    Mueller, Roland; Linders, Stefan; Ferreira Pires, Luis

    Although service-oriented architecture (SOA) is becoming increasingly popular in enterprise application rchitectures, little is known about how SOA could support and influence the use and implementation of business intelligence (BI). We applied the Delphi method in order to identify opportunities

  2. Transformer-based design techniques for oscillators and frequency dividers

    CERN Document Server

    Luong, Howard Cam

    2016-01-01

    This book provides in-depth coverage of transformer-based design techniques that enable CMOS oscillators and frequency dividers to achieve state-of-the-art performance.  Design, optimization, and measured performance of oscillators and frequency dividers for different applications are discussed in detail, focusing on not only ultra-low supply voltage but also ultra-wide frequency tuning range and locking range.  This book will be an invaluable reference for anyone working or interested in CMOS radio-frequency or mm-Wave integrated circuits and systems.

  3. Modal Analysis Based on the Random Decrement Technique

    DEFF Research Database (Denmark)

    Asmussen, J. C.; Brincker, Rune

    1998-01-01

    This article describes the work carried out within the project: Modal Analysis Based on the Random Decrement Technique - Application to Civil Engineering Structures. The project is part of the research programme: Dynamics of Structures sponsored by the Danish Technical Research Counsil. The planned...... contents and the requirement for the project prior to its start are described together with thee results obtained during the 3 year period of the project. The project was mainly carried out as a Ph.D project by the first author from September 1994 to August 1997 in cooperation with associate professor Rune...

  4. Office-based tracheoesophageal puncture: updates in techniques and outcomes.

    Science.gov (United States)

    Bergeron, Jennifer L; Jamal, Nausheen; Erman, Andrew; Chhetri, Dinesh K

    2014-01-01

    Tracheoesophageal puncture (TEP) is an effective rehabilitation method for postlaryngectomy speech and has already been described as a procedure that is safely performed in the office. We review our long-term experience with office-based TEP over the past 7 years in the largest cohort published to date. A retrospective chart review was performed of all patients who underwent TEP by a single surgeon from 2005 through 2012, including office-based and operating room procedures. Indications for the chosen technique (office versus operating room) and surgical outcomes were evaluated. Fifty-nine patients underwent 72 TEP procedures, with 55 performed in the outpatient setting and 17 performed in the operating room, all without complication. The indications for performing TEPs in the operating room included 2 primary TEPs, 14 due to concomitant procedures requiring general anesthesia, and 1 due to failed attempt at office-based TEP. Nineteen patients with prior rotational or free flap reconstruction successfully underwent office-based TEP. TEP in an office-based setting with immediate voice prosthesis placement continues to be a safe method of voice rehabilitation for postlaryngectomy patients, including those who have previously undergone free flap or rotational flap reconstruction. Office-based TEP is now our primary approach for postlaryngectomy voice rehabilitation. Copyright © 2014 Elsevier Inc. All rights reserved.

  5. Structural level characterization of base oils using advanced analytical techniques

    KAUST Repository

    Hourani, Nadim

    2015-05-21

    Base oils, blended for finished lubricant formulations, are classified by the American Petroleum Institute into five groups, viz., groups I-V. Groups I-III consist of petroleum based hydrocarbons whereas groups IV and V are made of synthetic polymers. In the present study, five base oil samples belonging to groups I and III were extensively characterized using high performance liquid chromatography (HPLC), comprehensive two-dimensional gas chromatography (GC×GC), and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) equipped with atmospheric pressure chemical ionization (APCI) and atmospheric pressure photoionization (APPI) sources. First, the capabilities and limitations of each analytical technique were evaluated, and then the availed information was combined to reveal compositional details on the base oil samples studied. HPLC showed the overwhelming presence of saturated over aromatic compounds in all five base oils. A similar trend was further corroborated using GC×GC, which yielded semiquantitative information on the compound classes present in the samples and provided further details on the carbon number distributions within these classes. In addition to chromatography methods, FT-ICR MS supplemented the compositional information on the base oil samples by resolving the aromatics compounds into alkyl- and naphtheno-subtituted families. APCI proved more effective for the ionization of the highly saturated base oil components compared to APPI. Furthermore, for the detailed information on hydrocarbon molecules FT-ICR MS revealed the presence of saturated and aromatic sulfur species in all base oil samples. The results presented herein offer a unique perspective into the detailed molecular structure of base oils typically used to formulate lubricants. © 2015 American Chemical Society.

  6. A Comparative Analysis of Exemplar Based and Wavelet Based Inpainting Technique

    Directory of Open Access Journals (Sweden)

    Vaibhav V Nalawade

    2012-06-01

    Full Text Available Image inpainting is the process of filling in of missing region so as to preserve its overall continuity. Image inpainting is manipulation and modification of an image in a form that is not easily detected. Digital image inpainting is relatively new area of research, but numerous and different approaches to tackle the inpainting problem have been proposed since the concept was first introduced. This paper compares two separate techniques viz, Exemplar based inpainting technique and Wavelet based inpainting technique, each portraying a different set of characteristics. The algorithms analyzed under exemplar technique are large object removal by exemplar based inpainting technique (Criminisi’s and modified exemplar (Cheng. The algorithm analyzed under wavelet is Chen’s visual image inpainting method. A number of examples on real and synthetic images are demonstrated to compare the results of different algorithms using both qualitative and quantitative parameters.

  7. DISEÑO DE UN CUESTIONARIO SOBRE HÁBITOS DE ACTIVIDAD FÍSICA Y ESTILO DE VIDA A PARTIR DEL MÉTODO DELPHI Designing a questionnaire on physical activity habits and lifestyle from the Delphi method

    Directory of Open Access Journals (Sweden)

    Estefanía Castillo Viera

    2012-02-01

    Full Text Available En la actualidad existen numerosos cuestionarios que estudian los hábitos de actividad física, estilo de vida y salud (IPAQ, SF-36, EQ-5D. El problema surge cuando se pretende diseñar una herramienta nueva para utilizarla en una población concreta que tiene unas características específicas y de la que se pretende conocer aspectos relacionados con el ámbito en el que se desarrolla. El objetivo principal de este trabajo fue diseñar un cuestionario sobre actividad física y estilo de vida de la población universitaria. Para su elaboración se utilizó el método Delphi, un procedimiento basado en la consulta a expertos a través de un grupo coordinador y un grupo de expertos que emiten sus opiniones de manera cíclica acerca del tema a tratar hasta que llegan a un consenso. En nuestro caso, se elaboró un cuestionario con siete dimensiones y 55 ítems. Los resultados nos llevan a realizar una valoración positiva de la utilización del método Delphi para el diseño del cuestionario ya que garantiza una mayor validez.

    Palabras clave: Hábitos actividad física, estilo de vida, método Delphi.

    Nowadays there are numerous questionnaires studying physical activity habits, lifestyle and health (IPAQ, SF-36, EQ-5D. The problem arises when trying to design a new tool for use in a specific population that has specific characteristics and which seeks to explore aspects related to the area in which it develops. The main objective of this study was to design a questionnaire on physical activity and lifestyle of the university population. To prepare this Delphi method was used, a procedure based on expert consultation through a steering group and a group of experts to cast their opinions on a cyclical basis of the topic until they reach a consensus. In our case, a questionnaire was developed with seven dimensions and 55 items. The results lead us to make a positive assessment of the use of the Delphi method to design the

  8. ONLINE GRINDING WHEEL WEAR COMPENSATION BY IMAGE BASED MEASURING TECHNIQUES

    Institute of Scientific and Technical Information of China (English)

    WAN Daping; HU Dejin; WU Qi; ZHANG Yonghong

    2006-01-01

    Automatic compensation of grinding wheel wear in dry grinding is accomplished by an image based online measurement method. A kind of PC-based charge-coupled device image recognition system is schemed out, which detects the topography changes of the grinding wheel surface. Profile data, which corresponds to the wear and the topography, is measured by using a digital image processing method. The grinding wheel wear is evaluated by analyzing the position deviation of the grinding wheel edge. The online wear compensation is achieved according to the measure results. The precise detection and automatic compensation system is integrated into an open structure CNC curve grinding machine. A practical application is carried out to fulfil the precision curve grinding. The experimental results confirm the benefits of the proposed techniques, and the online detection accuracy is less than 5 μm. The grinding machine provides higher precision according to the in-process grinding wheel error compensation.

  9. On combining Laplacian and optimization-based mesh smoothing techniques

    Energy Technology Data Exchange (ETDEWEB)

    Freitag, L.A.

    1997-07-01

    Local mesh smoothing algorithms have been shown to be effective in repairing distorted elements in automatically generated meshes. The simplest such algorithm is Laplacian smoothing, which moves grid points to the geometric center of incident vertices. Unfortunately, this method operates heuristically and can create invalid meshes or elements of worse quality than those contained in the original mesh. In contrast, optimization-based methods are designed to maximize some measure of mesh quality and are very effective at eliminating extremal angles in the mesh. These improvements come at a higher computational cost, however. In this article the author proposes three smoothing techniques that combine a smart variant of Laplacian smoothing with an optimization-based approach. Several numerical experiments are performed that compare the mesh quality and computational cost for each of the methods in two and three dimensions. The author finds that the combined approaches are very cost effective and yield high-quality meshes.

  10. Paramedic clinical decision making during high acuity emergency calls: design and methodology of a Delphi study

    Directory of Open Access Journals (Sweden)

    Croskerry Pat

    2009-09-01

    Full Text Available Abstract Background The scope of practice of paramedics in Canada has steadily evolved to include increasingly complex interventions in the prehospital setting, which likely have repercussions on clinical outcome and patient safety. Clinical decision making has been evaluated in several health professions, but there is a paucity of work in this area on paramedics. This study will utilize the Delphi technique to establish consensus on the most important instances of paramedic clinical decision making during high acuity emergency calls, as they relate to clinical outcome and patient safety. Methods and design Participants in this multi-round survey study will be paramedic leaders and emergency medical services medical directors/physicians from across Canada. In the first round, participants will identify instances of clinical decision making they feel are important for patient outcome and safety. On the second round, the panel will rank each instance of clinical decision making in terms of its importance. On the third and potentially fourth round, participants will have the opportunity to revise the ranking they assigned to each instance of clinical decision making. Consensus will be considered achieved for the most important instances if 80% of the panel ranks it as important or extremely important. The most important instances of clinical decision making will be plotted on a process analysis map. Discussion The process analysis map that results from this Delphi study will enable the gaps in research, knowledge and practice to be identified.

  11. Hash Based Least Significant Bit Technique For Video Steganography

    Directory of Open Access Journals (Sweden)

    Prof. Dr. P. R. Deshmukh ,

    2014-01-01

    Full Text Available The Hash Based Least Significant Bit Technique For Video Steganography deals with hiding secret message or information within a video.Steganography is nothing but the covered writing it includes process that conceals information within other data and also conceals the fact that a secret message is being sent.Steganography is the art of secret communication or the science of invisible communication. In this paper a Hash based least significant bit technique for video steganography has been proposed whose main goal is to embed a secret information in a particular video file and then extract it using a stego key or password. In this Least Significant Bit insertion method is used for steganography so as to embed data in cover video with change in the lower bit.This LSB insertion is not visible.Data hidding is the process of embedding information in a video without changing its perceptual quality. The proposed method involve with two terms that are Peak Signal to Noise Ratio (PSNR and the Mean Square Error (MSE .This two terms measured between the original video files and steganographic video files from all video frames where a distortion is measured using PSNR. A hash function is used to select the particular position for insertion of bits of secret message in LSB bits.

  12. What do adolescents and young adults want from cancer resources? Insights from a Delphi panel of AYA patients.

    Science.gov (United States)

    Cheung, Christabel K; Zebrack, Brad

    2017-01-01

    Cancer treatment programs and community-based support organizations are increasingly producing information and support resources geared to adolescent and young adult patients (AYAs); however, systematically-derived knowledge about user preferences for these resources is lacking. The primary purpose of this study was to generate findings from informed AYA cancer patients that resource developers can use to create products consistent with AYAs' expressed preferences for information and support. Utilizing a modified Delphi technique, AYA cancer patients identified barriers to optimal AYA cancer care, cancer resources that address their needs, and specific characteristics of cancer resources they find helpful. The Delphi panel consisted of a convenience sample of 21 patients aged 18-39 years, who were diagnosed with cancer between ages 15-39 and were no more than 8 years out from cancer treatment at the time of the study. Survey data were collected in three consecutive and iterative rounds over the course of 6 months in 2015. Findings indicated that AYA patients prefer resources that reduce feelings of loneliness, create a sense of community or belonging, and provide opportunities to meet other AYA patients. Among the top barriers to optimal cancer care, AYAs identified a lack of cancer care providers specializing in AYA care, a lack of connection to an AYA patient community, and their own lack of ability to navigate the health system. Participants also described aspects of cancer information and supportive care resources that they believe address AYAs' concerns. Information derived from this study will help developers of cancer information and support resources to better reach their intended audience. From the point of view of AYA cancer patients, optimal cancer care and utilization of information and support resources requires that cancer support programs foster meaningful connections among AYA patients. Results also suggest that patient resources should equip

  13. Authority Delegation in Boyerahmad Health Centers through Model to Combine Suggestions System and Delphi Method 2012

    Directory of Open Access Journals (Sweden)

    M Momeninezhad

    2013-11-01

    Full Text Available Background & aim: Authority delegation means to transmit part of organization`s manager and leader`s special authorities and executive duties, regardless its root to subordinates and heads of units and related offices to speed up implementing affairs and organizational purposes quickly and on time. The purpose of this study was to inspect authority delegation in health centers of Boyerahmad district through using model to combine suggestions (to identify process and Delphi method (expert`s opinions . Methods: This cross-sectional study was implemented in two stages at first stage, research community was authorities of Boyerahmad health centers (58 persons, their suggestions about requested processes to delegate were gathered by total count through open questionnaires and in second stage, which was Delphi, suggestions gathered from previous stage judged by 30 experts. Data of both stages analyzed by help of Chi-square, correlation coefficient tests. Results: Findings showed that 73.85% of suggestions were able to be delegated, based on expert`s opinion. 40% of suggestions were in domain of official, 36.92% financial and 23.08% hygienic. 88% less than 6 years management background. 20.69% had no academic studies and only 27% were general physicians. Conclusion: By participation of environmental management levels, several processes may be specified and identify cases which are possible to delegate them executively using Delphi (expert`s opinion and this model can be used as a trust worthy method to delegate authority for decentralization. Key words: Participation Management, Health centers, Authority delegation

  14. Application of Fuzzy Delphi in the Selection of COPD Risk Factors among Steel Industry Workers.

    Science.gov (United States)

    Dapari, Rahmat; Ismail, Halim; Ismail, Rosnah; Ismail, Noor Hassim

    2017-01-01

    The Delphi method has been widely applied in many study areas to systematically gather experts' input on particular topic. Recently, it has become increasingly well known in health related research. This paper applied the Fuzzy Delphi method to enhance the validation of a questionnaire pertaining chronic obstructive pulmonary disease (COPD) risk factors among metal industry workers. A detailed, predefined list of possible risk factors for COPD among metal industry workers was created through a comprehensive and exhaustive review of literature from 1995 to 2015. The COPD questionnaire were distributed among people identified as occupational, environmental, and hygiene experts. Linguistic variable using Likert scale was used by the expert to indicate their expert judgment of each item. Subsequently, the linguistic variable was converted into a triangular fuzzy number. The average score of the fuzzy number will be used to determine whether the item will be removed or retained. Ten experts were involved in evaluating 26 items. The experts were in agreement with most of the items, with an average fuzzy number range between 0.429 and 0.800. Two items were removed and three items were added, leaving a total 26 items selected for the COPD risk factors questionnaire. The experts were in disagreement with each other for items F10 and F11 where most of the experts claimed that the question is too subjective and based on self-perception only. The fuzzy Delphi method enhanced the accuracy of the questionnaire pertaining to COPD risk factors, and decreased the length of the established tools.

  15. ESPACOMP Medication Adherence Reporting Guidelines (EMERGE): a reactive-Delphi study protocol

    Science.gov (United States)

    Helmy, R; Zullig, L L; Dunbar-Jacob, J; Hughes, D A; Vrijens, B; Wilson, I B; De Geest, S

    2017-01-01

    Introduction Medication adherence is fundamental to achieving optimal patient outcomes. Reporting research on medication adherence suffers from some issues—including conceptualisation, measurement and data analysis—that thwart its advancement. Using the ABC taxonomy for medication adherence as the conceptual basis, a steering committee of members of the European Society for Patient Adherence, COMpliance, and Persistence (ESPACOMP) launched an initiative to develop ESPACOMP Medication Adherence Reporting Guidelines (EMERGE). This paper is a protocol for a Delphi study that aims to build consensus among a group of topic experts regarding an item list that will support developing EMERGE. Methods and analysis This study uses a reactive-Delphi design where a group of topic experts will be asked to rate the relevance and clarity of an initial list of items, in addition to suggesting further items and/or modifications of the initial items. The initial item list, generated by the EMERGE steering committee through a structured process, consists of 26 items distributed in 2 sections: 4 items representing the taxonomy-based minimum reporting criteria, and 22 items organised according to the common reporting sections. A purposive sample of experts will be selected from relevant disciplines and diverse geographical locations. Consensus will be achieved through predefined decision rules to keep, delete or modify the items. An iterative process of online survey rounds will be carried out until consensus is reached. Ethics and dissemination An ethics approval was not required for the study according to the Swiss federal act on research involving human beings. The participating experts will be asked to give an informed consent. The results of this Delphi study will feed into EMERGE, which will be disseminated through peer-reviewed publications and presentations at conferences. Additionally, the steering committee will encourage their endorsement by registering the guidelines at

  16. Management of congenital quantitative fibrinogen disorders: a Delphi consensus.

    Science.gov (United States)

    Casini, A; de Moerloose, P

    2016-11-01

    No evidence-based guidelines for the management of patients suffering from afibrinogenaemia and hypofibrinogenaemia are available. The aim of this study was to harmonize patient's care among invited haemophilia experts from Belgium, France and Switzerland. A Delphi-like methodology was used to reach a consensus on: prophylaxis, bleeding, surgery, pregnancy and thrombosis management. The main final statements are as follows: (i) a secondary fibrinogen prophylaxis should be started after a first life-threatening bleeding in patients with afibrinogenaemia; (ii) during prophylaxis the target trough fibrinogen level should be 0.5 g L(-1) ; (iii) if an adaptation of dosage is required, the frequency of infusions rather than the fibrinogen amount should be modified; (iv) afibrinogenaemic patients undergoing a surgery at high bleeding risk should receive fibrinogen concentrates regardless of the personal or family history of bleeding; (v) moderate hypofibrinogenaemic patients (i.e. ≥0.5 g L(-1) ) without previous bleeding (despite haemostatic challenges) undergoing a surgery at low bleeding risk may not receive fibrinogen concentrates as prophylaxis; (vi) monitoring the trough fibrinogen levels should be performed at least once a month throughout the pregnancy and a foetal growth and placenta development close monitoring by ultrasound is recommended; (vii) fibrinogen replacement should be started concomitantly to the introduction of anticoagulation in afibrinogenaemic patients suffering from a venous thromboembolic event; and (viii) low-molecular-weight heparin is the anticoagulant of choice in case of venous thromboembolism. The results of this initiative should help clinicians in the difficult management of patients with congenital fibrinogen disorders. © 2016 John Wiley & Sons Ltd.

  17. Core competencies for UK occupational health nurses: a Delphi study

    Science.gov (United States)

    Demou, E.; Kiran, S.; Gaffney, M.; Stevenson, M.; Macdonald, E. B.

    2016-01-01

    Background Occupational health nurses (OHNs) play a pivotal role in the delivery of occupational health (OH) services. Specific competency guidance has been developed in a number of countries, including the UK. While it is acknowledged that UK OHN practice has evolved in recent years, there has been no formal research to capture these developments to ensure that training and curricula remain up-to-date and reflect current practice. Aims To identify current priorities among UK OHNs of the competencies required for OH practice. Methods A modified Delphi study undertaken among representative OHN networks in the UK. This formed part of a larger study including UK and international occupational physicians. The study was conducted in two rounds using a questionnaire based on available guidance on training competencies for OH practice, the published literature, expert panel reviews and conference discussions. Results Consensus among OHNs was high with 7 out of the 12 domains scoring 100% in rating. ‘Good clinical care’ was the principal domain ranked most important, followed by ‘general principles of assessment & management of occupational hazards to health’. ‘Research methods’ and ‘teaching & educational supervision’ were considered least important. Conclusions This study has established UK OHNs’ current priorities on the competencies required for OH practice. The timing of this paper is opportune with the formal launch of the Faculty of Occupational Health Nursing planned in 2018 and should inform the development of competency requirements as part of the Faculty’s goals for standard setting in OHN education and training. PMID:27492470

  18. Developing a model osteoarthritis consultation: a Delphi consensus exercise

    Directory of Open Access Journals (Sweden)

    Porcheret Mark

    2013-01-01

    Full Text Available Abstract Background Osteoarthritis (OA is a common condition managed in general practice, but often not in line with published guidance. The ideal consultation for a patient presenting with possible OA is not known. The aim of the study was to develop the content of a model OA consultation for the assessment and treatment of older adults presenting in general practice with peripheral joint problems. Methods A postal Delphi consensus exercise was undertaken with two expert groups: i general practitioners (GPs with expertise in OA management and ii patients with experience of living with OA. An advisory group generated 61 possible consultation tasks for consideration in the consensus exercise. Expert groups were asked to consider which tasks should be included in the model OA consultation. The exercise was completed by 15 GPs and 14 patients. The level of agreement for inclusion in the model was set at 90%. Results The model OA consultation included 25 tasks to be undertaken during the initial consultation between a GP and a patient presenting with peripheral joint pain. The 25 tasks provide detailed advice on how the following elements of the consultation should be addressed: i assessment of chronic joint pain, ii patient’s ideas and concerns, iii exclusion of red flags, iv examination, v provision of the diagnosis and written information, vi promotion of exercise and weight loss, vii initial pain management and viii arranging a follow-up appointment. Both groups prioritised a bio-medical approach to the consultation, rather than a bio-psycho-social one, suggesting a discordance between current thinking and research evidence. Conclusions This study has enabled the priorities of GPs and patients to be identified for a model OA consultation. The results of this consensus study will inform the development of best practice for the management of OA in primary care and the implementation of evidence-based guidelines for OA in primary care.

  19. Developing a model osteoarthritis consultation: a Delphi consensus exercise.

    Science.gov (United States)

    Porcheret, Mark; Grime, Janet; Main, Chris; Dziedzic, Krysia

    2013-01-16

    Osteoarthritis (OA) is a common condition managed in general practice, but often not in line with published guidance. The ideal consultation for a patient presenting with possible OA is not known. The aim of the study was to develop the content of a model OA consultation for the assessment and treatment of older adults presenting in general practice with peripheral joint problems. A postal Delphi consensus exercise was undertaken with two expert groups: i) general practitioners (GPs) with expertise in OA management and ii) patients with experience of living with OA. An advisory group generated 61 possible consultation tasks for consideration in the consensus exercise. Expert groups were asked to consider which tasks should be included in the model OA consultation. The exercise was completed by 15 GPs and 14 patients. The level of agreement for inclusion in the model was set at 90%. The model OA consultation included 25 tasks to be undertaken during the initial consultation between a GP and a patient presenting with peripheral joint pain. The 25 tasks provide detailed advice on how the following elements of the consultation should be addressed: i) assessment of chronic joint pain, ii) patient's ideas and concerns, iii) exclusion of red flags, iv) examination, v) provision of the diagnosis and written information, vi) promotion of exercise and weight loss, vii) initial pain management and viii) arranging a follow-up appointment. Both groups prioritised a bio-medical approach to the consultation, rather than a bio-psycho-social one, suggesting a discordance between current thinking and research evidence. This study has enabled the priorities of GPs and patients to be identified for a model OA consultation. The results of this consensus study will inform the development of best practice for the management of OA in primary care and the implementation of evidence-based guidelines for OA in primary care.

  20. Study on the Delphi-Method-Based Quality Control Method for Medical Equipment during the Procurement Process%基于德尔菲法的医疗设备采购过程中质量控制方法的探究

    Institute of Scientific and Technical Information of China (English)

    金磊; 王新; 杨莎; 曹娟娟

    2016-01-01

    在我院现有医疗设备采购管理的基础上,采用“德尔菲法”加强医院对医疗设备采购过程中质量控制的管理,确保医疗设备采购过程的规范、高效,降低行政风险,从根本上减少因采购过程管理不当导致的各种问题和纠纷、更好地发挥医学工程部门的技术管理作用,推动医院设备管理的规范化,提升医院管理水平。%The Delphi method was adopted to strengthen the management of medical equipment quality control during the procurement process in the hospital based on the existing medical equipment procurement management. This practice ensured the standardization, high efficiency and reduced administrative risks of medical equipment procurement process, and radically reduced various problems and disputes resulting from improper management of the medical equipment procurement process, which helped Department of Biomedical Engineering to play a better role of technology management in the equipment procurement process, promoted standardization of equipment management and enhanced the level of hospital management.

  1. An interactive tutorial-based training technique for vertebral morphometry.

    Science.gov (United States)

    Gardner, J C; von Ingersleben, G; Heyano, S L; Chesnut, C H

    2001-01-01

    The purpose of this work was to develop a computer-based procedure for training technologists in vertebral morphometry. The utility of the resulting interactive, tutorial based training method was evaluated in this study. The training program was composed of four steps: (1) review of an online tutorial, (2) review of analyzed spine images, (3) practice in fiducial point placement and (4) testing. During testing, vertebral heights were measured from digital, lateral spine images containing osteoporotic fractures. Inter-observer measurement precision was compared between research technicians, and between technologists and radiologist. The technologists participating in this study had no prior experience in vertebral morphometry. Following completion of the online training program, good inter-observer measurement precision was seen between technologists, showing mean coefficients of variation of 2.33% for anterior, 2.87% for central and 2.65% for posterior vertebral heights. Comparisons between the technicians and radiologist ranged from 2.19% to 3.18%. Slightly better precision values were seen with height measurements compared with height ratios, and with unfractured compared with fractured vertebral bodies. The findings of this study indicate that self-directed, tutorial-based training for spine image analyses is effective, resulting in good inter-observer measurement precision. The interactive tutorial-based approach provides standardized training methods and assures consistency of instructional technique over time.

  2. Enhancing the effectiveness of IST through risk-based techniques

    Energy Technology Data Exchange (ETDEWEB)

    Floyd, S.D.

    1996-12-01

    Current IST requirements were developed mainly through deterministic-based methods. While this approach has resulted in an adequate level of safety and reliability for pumps and valves, insights from probabilistic safety assessments suggest a better safety focus can be achieved at lower costs. That is, some high safety impact pumps and valves are currently not tested under the IST program and should be added, while low safety impact valves could be tested at significantly greater intervals than allowed by the current IST program. The nuclear utility industry, through the Nuclear Energy Institute (NEI), has developed a draft guideline for applying risk-based techniques to focus testing on those pumps and valves with a high safety impact while reducing test frequencies on low safety impact pumps and valves. The guideline is being validated through an industry pilot application program that is being reviewed by the U.S. Nuclear Regulatory Commission. NEI and the ASME maintain a dialogue on the two groups` activities related to risk-based IST. The presenter will provide an overview of the NEI guideline, discuss the methodological approach for applying risk-based technology to IST and provide the status of the industry pilot plant effort.

  3. Study of multi-muon bundles in cosmic ray showers detected with the DELPHI detector at LEP

    CERN Document Server

    Abdallah, J; Adam, W; Adzic, P

    2007-01-01

    The DELPHI detector at LEP has been used to measure multi-muon bundles originating from cosmic ray interactions with air. The cosmic events were recorded in ``parasitic mode'' between individual e+e- interactions and the total live time of this data taking is equivalent to 1.6x10^6 seconds. The DELPHI apparatus is located about 100 metres underground and the 84 metres rock overburden imposes a cut-off of about 52 GeV/c on muon momenta. The data from the large volume Hadron Calorimeter allowed the muon multiplicity of 54201 events to be reconstructed. The resulting muon multiplicity distribution is compared with the prediction of the Monte Carlo simulation based on CORSIKA/QGSJET01. The model fails to describe the abundance of high multiplicity events. The impact of QGSJET internal parameters on the results is also studied.

  4. PDMS microchannel fabrication technique based on microwire-molding

    Institute of Scientific and Technical Information of China (English)

    JIA YueFei; JIANG JiaHuan; MA XiaoDong; LI Yuan; HUANG HeMing; CAI KunBao; CAI ShaoXi; WU YunPeng

    2008-01-01

    Micro-flow channel is basic functional component of microfluidic chip, and every step-forward of its construction technique has been receiving concern all over the world. This article presents a notcomplicated but flexible method for fabrication of micro-flow channels. This method mainly utilizes the conventional molding capability of polydimethylsiloxane (PDMS) and widespread commercial microwires as templates. We have fabricated out some conventional types of microchannels with different topological shapes, as examples for the demonstration of this flexible fabrication route which was not dependent on the stringent demands of photolithographical or microelectromechanical system (MEMS)techniques. The smooth surface, high-intensity, and high flexibility of the wires made it possible to create many types of topological structures of the two-dimensional or three-dimensional microchannel or channel array. The geometric shape of the cross-section of thus forming microchannel in PDMS was the negative of that of embedded-in microwire, in high-fidelity if suitable measures were taken. Moreover, such a microchannel fabrication process can easily integrate the conductivity and low resistivity of the metal wire to create micro-flow devices that are suitable for the electromagnetic control of liquid or the temperature regulation in the microchannel. Furthermore some preliminary optical analysis was provided for the observation of thus forming rounded microchannel. Based on this molding strategy,we even made some prototypes for functional microflow application, such as microsolenoids chip and temperature control gadgets. And an experiment of forming a droplet in the cross channel further confirmed the feasibility and applicability of this flexible microchannel forming technique.

  5. Global priorities for research and the relative importance of different research outcomes: an international Delphi survey of malaria research experts.

    Science.gov (United States)

    Mulligan, Jo-Ann; Conteh, Lesong

    2016-12-06

    As global research investment increases, attention inevitably turns to assessing and measuring the outcomes and impact from research programmes. Research can have many different outcomes such as producing advances in scientific knowledge, building research capacity and, ultimately, health and broader societal benefits. The aim of this study was to test the use of a Delphi methodology as a way of gathering views from malaria research experts on research priorities and eliciting relative valuations of the different types of health research impact. An international Delphi survey of 60 malaria research experts was used to understand views on research outcomes and priorities within malaria and across global health more widely. The study demonstrated the application of the Delphi technique to eliciting views on malaria specific research priorities, wider global health research priorities and the values assigned to different types of research impact. In terms of the most important past research successes, the development of new anti-malarial drugs and insecticide-treated bed nets were rated as the most important. When asked about research priorities for future funding, respondents ranked tackling emerging drug and insecticide resistance the highest. With respect to research impact, the panel valued research that focuses on health and health sector benefits and informing policy and product development. Contributions to scientific knowledge, although highly valued, came lower down the ranking, suggesting that efforts to move research discoveries to health products and services are valued more highly than pure advances in scientific knowledge. Although the Delphi technique has been used to elicit views on research questions in global health this was the first time it has been used to assess how a group of research experts value or rank different types of research impact. The results suggest it is feasible to inject the views of a key stakeholder group into the research

  6. NVC Based Model for Selecting Effective Requirement Elicitation Technique

    Directory of Open Access Journals (Sweden)

    Md. Rizwan Beg

    2012-10-01

    Full Text Available Requirement Engineering process starts from gathering of requirements i.e.; requirements elicitation. Requirementselicitation (RE is the base building block for a software project and has very high impact onsubsequent design and builds phases as well. Accurately capturing system requirements is the major factorin the failure of most of software projects. Due to the criticality and impact of this phase, it is very importantto perform the requirements elicitation in no less than a perfect manner. One of the most difficult jobsfor elicitor is to select appropriate technique for eliciting the requirement. Interviewing and Interactingstakeholder during Elicitation process is a communication intensive activity involves Verbal and Nonverbalcommunication (NVC. Elicitor should give emphasis to Non-verbal communication along with verbalcommunication so that requirements recorded more efficiently and effectively. In this paper we proposea model in which stakeholders are classified by observing non-verbal communication and use it as a basefor elicitation technique selection. We also propose an efficient plan for requirements elicitation which intendsto overcome on the constraints, faced by elicitor.

  7. Filling-Based Techniques Applied to Object Projection Feature Estimation

    CERN Document Server

    Quesada, Luis

    2012-01-01

    3D motion tracking is a critical task in many computer vision applications. Unsupervised markerless 3D motion tracking systems determine the most relevant object in the screen and then track it by continuously estimating its projection features (center and area) from the edge image and a point inside the relevant object projection (namely, inner point), until the tracking fails. Existing object projection feature estimation techniques are based on ray-casting from the inner point. These techniques present three main drawbacks: when the inner point is surrounded by edges, rays may not reach other relevant areas; as a consequence of that issue, the estimated features may greatly vary depending on the position of the inner point relative to the object projection; and finally, increasing the number of rays being casted and the ray-casting iterations (which would make the results more accurate and stable) increases the processing time to the point the tracking cannot be performed on the fly. In this paper, we anal...

  8. Model-checking techniques based on cumulative residuals.

    Science.gov (United States)

    Lin, D Y; Wei, L J; Ying, Z

    2002-03-01

    Residuals have long been used for graphical and numerical examinations of the adequacy of regression models. Conventional residual analysis based on the plots of raw residuals or their smoothed curves is highly subjective, whereas most numerical goodness-of-fit tests provide little information about the nature of model misspecification. In this paper, we develop objective and informative model-checking techniques by taking the cumulative sums of residuals over certain coordinates (e.g., covariates or fitted values) or by considering some related aggregates of residuals, such as moving sums and moving averages. For a variety of statistical models and data structures, including generalized linear models with independent or dependent observations, the distributions of these stochastic processes tinder the assumed model can be approximated by the distributions of certain zero-mean Gaussian processes whose realizations can be easily generated by computer simulation. Each observed process can then be compared, both graphically and numerically, with a number of realizations from the Gaussian process. Such comparisons enable one to assess objectively whether a trend seen in a residual plot reflects model misspecification or natural variation. The proposed techniques are particularly useful in checking the functional form of a covariate and the link function. Illustrations with several medical studies are provided.

  9. Investigations on landmine detection by neutron-based techniques.

    Science.gov (United States)

    Csikai, J; Dóczi, R; Király, B

    2004-07-01

    Principles and techniques of some neutron-based methods used to identify the antipersonnel landmines (APMs) are discussed. New results have been achieved in the field of neutron reflection, transmission, scattering and reaction techniques. Some conclusions are as follows: The neutron hand-held detector is suitable for the observation of anomaly caused by a DLM2-like sample in different soils with a scanning speed of 1m(2)/1.5 min; the reflection cross section of thermal neutrons rendered the determination of equivalent thickness of different soil components possible; a simple method was developed for the determination of the thermal neutron flux perturbation factor needed for multi-elemental analysis of bulky samples; unfolded spectra of elastically backscattered neutrons using broad-spectrum sources render the identification of APMs possible; the knowledge of leakage spectra of different source neutrons is indispensable for the determination of the differential and integrated reaction rates and through it the dimension of the interrogated volume; the precise determination of the C/O atom fraction requires the investigations on the angular distribution of the 6.13MeV gamma-ray emitted in the (16)O(n,n'gamma) reaction. These results, in addition to the identification of landmines, render the improvement of the non-intrusive neutron methods possible.

  10. Investigations on landmine detection by neutron-based techniques

    Energy Technology Data Exchange (ETDEWEB)

    Csikai, J. E-mail: csikai@delfin.klte.hu; Doczi, R.; Kiraly, B

    2004-07-01

    Principles and techniques of some neutron-based methods used to identify the antipersonnel landmines (APMs) are discussed. New results have been achieved in the field of neutron reflection, transmission, scattering and reaction techniques. Some conclusions are as follows: The neutron hand-held detector is suitable for the observation of anomaly caused by a DLM2-like sample in different soils with a scanning speed of 1 m{sup 2}/1.5 min; the reflection cross section of thermal neutrons rendered the determination of equivalent thickness of different soil components possible; a simple method was developed for the determination of the thermal neutron flux perturbation factor needed for multi-elemental analysis of bulky samples; unfolded spectra of elastically backscattered neutrons using broad-spectrum sources render the identification of APMs possible; the knowledge of leakage spectra of different source neutrons is indispensable for the determination of the differential and integrated reaction rates and through it the dimension of the interrogated volume; the precise determination of the C/O atom fraction requires the investigations on the angular distribution of the 6.13 MeV gamma-ray emitted in the {sup 16}O(n,n'{gamma}) reaction. These results, in addition to the identification of landmines, render the improvement of the non-intrusive neutron methods possible.

  11. A human visual based binarization technique for histological images

    Science.gov (United States)

    Shreyas, Kamath K. M.; Rajendran, Rahul; Panetta, Karen; Agaian, Sos

    2017-05-01

    In the field of vision-based systems for object detection and classification, thresholding is a key pre-processing step. Thresholding is a well-known technique for image segmentation. Segmentation of medical images, such as Computed Axial Tomography (CAT), Magnetic Resonance Imaging (MRI), X-Ray, Phase Contrast Microscopy, and Histological images, present problems like high variability in terms of the human anatomy and variation in modalities. Recent advances made in computer-aided diagnosis of histological images help facilitate detection and classification of diseases. Since most pathology diagnosis depends on the expertise and ability of the pathologist, there is clearly a need for an automated assessment system. Histological images are stained to a specific color to differentiate each component in the tissue. Segmentation and analysis of such images is problematic, as they present high variability in terms of color and cell clusters. This paper presents an adaptive thresholding technique that aims at segmenting cell structures from Haematoxylin and Eosin stained images. The thresholded result can further be used by pathologists to perform effective diagnosis. The effectiveness of the proposed method is analyzed by visually comparing the results to the state of art thresholding methods such as Otsu, Niblack, Sauvola, Bernsen, and Wolf. Computer simulations demonstrate the efficiency of the proposed method in segmenting critical information.

  12. A New Particle Swarm Optimization Based Stock Market Prediction Technique

    Directory of Open Access Journals (Sweden)

    Essam El. Seidy

    2016-04-01

    Full Text Available Over the last years, the average person's interest in the stock market has grown dramatically. This demand has doubled with the advancement of technology that has opened in the International stock market, so that nowadays anybody can own stocks, and use many types of software to perform the aspired profit with minimum risk. Consequently, the analysis and prediction of future values and trends of the financial markets have got more attention, and due to large applications in different business transactions, stock market prediction has become a critical topic of research. In this paper, our earlier presented particle swarm optimization with center of mass technique (PSOCoM is applied to the task of training an adaptive linear combiner to form a new stock market prediction model. This prediction model is used with some common indicators to maximize the return and minimize the risk for the stock market. The experimental results show that the proposed technique is superior than the other PSO based models according to the prediction accuracy.

  13. Detecting Molecular Properties by Various Laser-Based Techniques

    Energy Technology Data Exchange (ETDEWEB)

    Hsin, Tse-Ming [Iowa State Univ., Ames, IA (United States)

    2007-01-01

    Four different laser-based techniques were applied to study physical and chemical characteristics of biomolecules and dye molecules. These techniques are liole burning spectroscopy, single molecule spectroscopy, time-resolved coherent anti-Stokes Raman spectroscopy and laser-induced fluorescence microscopy. Results from hole burning and single molecule spectroscopy suggested that two antenna states (C708 & C714) of photosystem I from cyanobacterium Synechocystis PCC 6803 are connected by effective energy transfer and the corresponding energy transfer time is ~6 ps. In addition, results from hole burning spectroscopy indicated that the chlorophyll dimer of the C714 state has a large distribution of the dimer geometry. Direct observation of vibrational peaks and evolution of coumarin 153 in the electronic excited state was demonstrated by using the fs/ps CARS, a variation of time-resolved coherent anti-Stokes Raman spectroscopy. In three different solvents, methanol, acetonitrile, and butanol, a vibration peak related to the stretch of the carbonyl group exhibits different relaxation dynamics. Laser-induced fluorescence microscopy, along with the biomimetic containers-liposomes, allows the measurement of the enzymatic activity of individual alkaline phosphatase from bovine intestinal mucosa without potential interferences from glass surfaces. The result showed a wide distribution of the enzyme reactivity. Protein structural variation is one of the major reasons that are responsible for this highly heterogeneous behavior.

  14. Development of a practice guideline for optimal symptom relief for patients with pneumonia and dementia in nursing homes using a Delphi study

    NARCIS (Netherlands)

    van der Maaden, Tessa; van der Steen, Jenny T.; de Vet, Henrica C. W.; Achterberg, Wilco P.; Boersma, Froukje; Schols, Jos M. G. A.; van Berkel, Jos F. J. M.; Mehr, David R.; Arcand, Marcel; Hoepelman, Andy I. M.; Koopmans, Raymond T. C. M.; Hertogh, Cees M. P. M.

    2015-01-01

    ObjectiveThis study aimed to develop a practice guideline for a structured and consensus-based approach to relieve symptoms of pneumonia in patients with dementia in nursing homes. MethodsA five-round Delphi study involving a panel consisting of 24 experts was conducted. An initial version of the pr

  15. Development of a practice guideline for optimal symptom relief for patients with pneumonia and dementia in nursing homes using a Delphi study

    NARCIS (Netherlands)

    Maaden, T. van der; Steen, J.T. van der; Vet, H.C. de; Achterberg, W.P.; Boersma, F.; Schols, J.M.; Berkel, J.F. van; Mehr, D.R.; Arcand, M.; Hoepelman, A.I.; Koopmans, R.T.C.M.; Hertogh, C.M.

    2015-01-01

    OBJECTIVE: This study aimed to develop a practice guideline for a structured and consensus-based approach to relieve symptoms of pneumonia in patients with dementia in nursing homes. METHODS: A five-round Delphi study involving a panel consisting of 24 experts was conducted. An initial version of th

  16. Development of a decision aid for the treatment of benign prostatic hyperplasia : A four stage method using a Delphi consensus study

    NARCIS (Netherlands)

    Lamers, Romy E D; Cuypers, Maarten; Garvelink, Mirjam M.; Bosch, J. L H Ruud; Kil, Paul J M

    2016-01-01

    Objective: To develop a web-based decision aid (DA) for the treatment of lower urinary tract symptoms due to benign prostatic hyperplasia (LUTS/BPH). Methods: From February-September 2014 we performed a four-stage development method: 1: Two-round Delphi consensus method among urologists, 2: Identify

  17. An RSS based location estimation technique for cognitive relay networks

    KAUST Repository

    Qaraqe, Khalid A.

    2010-11-01

    In this paper, a received signal strength (RSS) based location estimation method is proposed for a cooperative wireless relay network where the relay is a cognitive radio. We propose a method for the considered cognitive relay network to determine the location of the source using the direct and the relayed signal at the destination. We derive the Cramer-Rao lower bound (CRLB) expressions separately for x and y coordinates of the location estimate. We analyze the effects of cognitive behaviour of the relay on the performance of the proposed method. We also discuss and quantify the reliability of the location estimate using the proposed technique if the source is not stationary. The overall performance of the proposed method is presented through simulations. ©2010 IEEE.

  18. A 3-Level Secure Histogram Based Image Steganography Technique

    Directory of Open Access Journals (Sweden)

    G V Chaitanya

    2013-04-01

    Full Text Available Steganography is an art that involves communication of secret data in an appropriate carrier, eg. images, audio, video, etc. with a goal to hide the very existence of embedded data so as not to arouse an eavesdropper’s suspicion. In this paper, a steganographic technique with high level of security and having a data hiding capacity close to 20% of cover image data has been developed. An adaptive and matched bit replacement method is used based on the sensitivity of Human Visual System (HVS at different intensities. The proposed algorithm ensures that the generated stego image has a PSNR greater than 38.5 and is also resistant to visual attack. A three level security is infused into the algorithm which makes data retrieval from the stego image possible only in case of having all the right keys.

  19. Proposed Arabic Text Steganography Method Based on New Coding Technique

    Directory of Open Access Journals (Sweden)

    Assist. prof. Dr. Suhad M. Kadhem

    2016-09-01

    Full Text Available Steganography is one of the important fields of information security that depend on hiding secret information in a cover media (video, image, audio, text such that un authorized person fails to realize its existence. One of the lossless data compression techniques which are used for a given file that contains many redundant data is run length encoding (RLE. Sometimes the RLE output will be expanded rather than compressed, and this is the main problem of RLE. In this paper we will use a new coding method such that its output will be contains sequence of ones with few zeros, so modified RLE that we proposed in this paper will be suitable for compression, finally we employ the modified RLE output for stenography purpose that based on Unicode and non-printed characters to hide the secret information in an Arabic text.

  20. Clustering economies based on multiple criteria decision making techniques

    Directory of Open Access Journals (Sweden)

    Mansour Momeni

    2011-10-01

    Full Text Available One of the primary concerns on many countries is to determine different important factors affecting economic growth. In this paper, we study some factors such as unemployment rate, inflation ratio, population growth, average annual income, etc to cluster different countries. The proposed model of this paper uses analytical hierarchy process (AHP to prioritize the criteria and then uses a K-mean technique to cluster 59 countries based on the ranked criteria into four groups. The first group includes countries with high standards such as Germany and Japan. In the second cluster, there are some developing countries with relatively good economic growth such as Saudi Arabia and Iran. The third cluster belongs to countries with faster rates of growth compared with the countries located in the second group such as China, India and Mexico. Finally, the fourth cluster includes countries with relatively very low rates of growth such as Jordan, Mali, Niger, etc.

  1. Crop Yield Forecasted Model Based on Time Series Techniques

    Institute of Scientific and Technical Information of China (English)

    Li Hong-ying; Hou Yan-lin; Zhou Yong-juan; Zhao Hui-ming

    2012-01-01

    Traditional studies on potential yield mainly referred to attainable yield: the maximum yield which could be reached by a crop in a given environment. The new concept of crop yield under average climate conditions was defined in this paper, which was affected by advancement of science and technology. Based on the new concept of crop yield, the time series techniques relying on past yield data was employed to set up a forecasting model. The model was tested by using average grain yields of Liaoning Province in China from 1949 to 2005. The testing combined dynamic n-choosing and micro tendency rectification, and an average forecasting error was 1.24%. In the trend line of yield change, and then a yield turning point might occur, in which case the inflexion model was used to solve the problem of yield turn point.

  2. A polarization-based Thomson scattering technique for burning plasmas

    CERN Document Server

    Parke, E; Hartog, D J Den

    2013-01-01

    The traditional Thomson scattering diagnostic is based on measurement of the wavelength spectrum of scattered light, where electron temperature measurements are inferred from thermal broadening of the scattered laser light. At sufficiently high temperatures, especially those predicted for ITER and other burning plasmas, relativistic effects cause a change in the polarization state of the scattered photons. The resulting depolarization of the scattered light is temperature dependent and has been proposed elsewhere as a potential alternative to the traditional spectral decomposition technique. Following similar work, we analytically calculate the degree of polarization for incoherent Thomson scattering. For the first time, we obtain exact results valid for the full range of incident laser polarization states and electron temperatures. While previous work focused only on linear polarization, we show that circularly polarized incident light optimizes the degree of depolarization for a wide range of temperatures r...

  3. SAR IMAGE ENHANCEMENT BASED ON BEAM SHARPENING TECHNIQUE

    Institute of Scientific and Technical Information of China (English)

    LIYong; ZI-IANGKun-hui; ZHUDai-yin; ZHUZhao-da

    2004-01-01

    A major problem encountered in enhancing SAR image is the total loss of phase information and the unknown parameters of imaging system. The beam sharpening technique, combined with synthetic aperture radiation pattern estimation provides an approach to process this kind of data to achieve higher apparent resolution. Based on the criterion of minimizing the expected quadratic estimation error, an optimum FIR filter with a symmetrical structure is designed whose coefficients depend on the azimuth response of local isolated prominent points because this response can be approximately regarded as the synthetic aperture radiation pattern of the imaging system. The point target simulation shows that the angular resolution is improved by a ratio of almost two to one. The processing results of a live SAR image demonstrate the validity of the method.

  4. Dynamic analysis of granite rockburst based on the PIV technique

    Institute of Scientific and Technical Information of China (English)

    Wang Hongjian; Liu Da’an; Gong Weili; Li Liyun

    2015-01-01

    This paper describes the deep rockburst simulation system to reproduce the granite instantaneous rock-burst process. Based on the PIV (Particle Image Velocimetry) technique, quantitative analysis of a rock-burst, the images of tracer particle, displacement and strain fields can be obtained, and the debris trajectory described. According to the observation of on-site tests, the dynamic rockburst is actually a gas–solid high speed flow process, which is caused by the interaction of rock fragments and surrounding air. With the help of analysis on high speed video and PIV images, the granite rockburst failure process is composed of six stages of platey fragment spalling and debris ejection. Meanwhile, the elastic energy for these six stages has been calculated to study the energy variation. The results indicate that the rockburst process can be summarized as:an initiating stage, intensive developing stage and gradual decay stage. This research will be helpful for our further understanding of the rockburst mechanism.

  5. Hierarchical Spread Spectrum Fingerprinting Scheme Based on the CDMA Technique

    Directory of Open Access Journals (Sweden)

    Kuribayashi Minoru

    2011-01-01

    Full Text Available Abstract Digital fingerprinting is a method to insert user's own ID into digital contents in order to identify illegal users who distribute unauthorized copies. One of the serious problems in a fingerprinting system is the collusion attack such that several users combine their copies of the same content to modify/delete the embedded fingerprints. In this paper, we propose a collusion-resistant fingerprinting scheme based on the CDMA technique. Our fingerprint sequences are orthogonal sequences of DCT basic vectors modulated by PN sequence. In order to increase the number of users, a hierarchical structure is produced by assigning a pair of the fingerprint sequences to a user. Under the assumption that the frequency components of detected sequences modulated by PN sequence follow Gaussian distribution, the design of thresholds and the weighting of parameters are studied to improve the performance. The robustness against collusion attack and the computational costs required for the detection are estimated in our simulation.

  6. Demand Management Based on Model Predictive Control Techniques

    Directory of Open Access Journals (Sweden)

    Yasser A. Davizón

    2014-01-01

    Full Text Available Demand management (DM is the process that helps companies to sell the right product to the right customer, at the right time, and for the right price. Therefore the challenge for any company is to determine how much to sell, at what price, and to which market segment while maximizing its profits. DM also helps managers efficiently allocate undifferentiated units of capacity to the available demand with the goal of maximizing revenue. This paper introduces control system approach to demand management with dynamic pricing (DP using the model predictive control (MPC technique. In addition, we present a proper dynamical system analogy based on active suspension and a stability analysis is provided via the Lyapunov direct method.

  7. Whitelists Based Multiple Filtering Techniques in SCADA Sensor Networks

    Directory of Open Access Journals (Sweden)

    DongHo Kang

    2014-01-01

    Full Text Available Internet of Things (IoT consists of several tiny devices connected together to form a collaborative computing environment. Recently IoT technologies begin to merge with supervisory control and data acquisition (SCADA sensor networks to more efficiently gather and analyze real-time data from sensors in industrial environments. But SCADA sensor networks are becoming more and more vulnerable to cyber-attacks due to increased connectivity. To safely adopt IoT technologies in the SCADA environments, it is important to improve the security of SCADA sensor networks. In this paper we propose a multiple filtering technique based on whitelists to detect illegitimate packets. Our proposed system detects the traffic of network and application protocol attacks with a set of whitelists collected from normal traffic.

  8. A Novel Technique Based on Node Registration in MANETs

    Directory of Open Access Journals (Sweden)

    Rashid Jalal Qureshi

    2012-09-01

    Full Text Available In ad hoc network communication links between the nodes are wireless and each node acts as a router for the other node and packet is forward from one node to other. This type of networks helps in solving challenges and problems that may arise in every day communication. Mobile Ad Hoc Networks is a new field of research and it is particularly useful in situations where network infrastructure is costly. Protecting MANETs from security threats is a challenging task because of the MANETs dynamic topology. Every node in a MANETs is independent and is free to move in any direction, therefore change its connections to other nodes frequently. Due to its decentralized nature different types of attacks can be occur. The aim of this research paper is to investigate different MANETs security attacks and proposed nodes registration based technique by using cryptography functions.

  9. Diagnosis of Dengue Infection Using Conventional and Biosensor Based Techniques

    Directory of Open Access Journals (Sweden)

    Om Parkash

    2015-10-01

    Full Text Available Dengue is an arthropod-borne viral disease caused by four antigenically different serotypes of dengue virus. This disease is considered as a major public health concern around the world. Currently, there is no licensed vaccine or antiviral drug available for the prevention and treatment of dengue disease. Moreover, clinical features of dengue are indistinguishable from other infectious diseases such as malaria, chikungunya, rickettsia and leptospira. Therefore, prompt and accurate laboratory diagnostic test is urgently required for disease confirmation and patient triage. The traditional diagnostic techniques for the dengue virus are viral detection in cell culture, serological testing, and RNA amplification using reverse transcriptase PCR. This paper discusses the conventional laboratory methods used for the diagnosis of dengue during the acute and convalescent phase and highlights the advantages and limitations of these routine laboratory tests. Subsequently, the biosensor based assays developed using various transducers for the detection of dengue are also reviewed.

  10. Astronomical Image Compression Techniques Based on ACC and KLT Coder

    Directory of Open Access Journals (Sweden)

    J. Schindler

    2011-01-01

    Full Text Available This paper deals with a compression of image data in applications in astronomy. Astronomical images have typical specific properties — high grayscale bit depth, size, noise occurrence and special processing algorithms. They belong to the class of scientific images. Their processing and compression is quite different from the classical approach of multimedia image processing. The database of images from BOOTES (Burst Observer and Optical Transient Exploring System has been chosen as a source of the testing signal. BOOTES is a Czech-Spanish robotic telescope for observing AGN (active galactic nuclei and the optical transient of GRB (gamma ray bursts searching. This paper discusses an approach based on an analysis of statistical properties of image data. A comparison of two irrelevancy reduction methods is presented from a scientific (astrometric and photometric point of view. The first method is based on a statistical approach, using the Karhunen-Loeve transform (KLT with uniform quantization in the spectral domain. The second technique is derived from wavelet decomposition with adaptive selection of used prediction coefficients. Finally, the comparison of three redundancy reduction methods is discussed. Multimedia format JPEG2000 and HCOMPRESS, designed especially for astronomical images, are compared with the new Astronomical Context Coder (ACC coder based on adaptive median regression.

  11. Best practices for safe use of insulin pen devices in hospitals: Recommendations from an expert panel Delphi consensus process.

    Science.gov (United States)

    Haines, Stuart T; Miklich, Margaret A; Rochester-Eyeguokan, Charmaine

    2016-10-01

    A Delphi consensus development process was used to identify best practices for the safe use of insulin pen devices in hospitals. A panel of healthcare professionals with experience in patient safety activities and development of insulin-use guidelines was selected. In round 1 of a 4-round Delphi process, panelists were asked to identify key concepts and practices relating to safe use of insulin pen devices in hospitals. In round 2, panelists indicated their level of agreement with draft practice statements reflecting input received in round 1; statements with strong support were refined based on panelist suggestions. In round 3, the modified draft statements were rated for potential impact on patient safety. In round 4, panelists selected a final list of statements to recommend as best practices. A 12-member interprofessional panel consisting of nurses, pharmacists, and physicians participated in the Delphi process. In round 1, panelists submitted more than 450 statements describing safe practices for insulin pen use. Based on that input, 125 draft practice statements were developed; among 98 statements receiving panelist support in round 2, 76 were judged in round 3 to be critical to patient safety or likely to have a positive impact on patient safety. In round 4, panelists unanimously affirmed a final list of 35 best-practice statements for the safe use of insulin pens in hospitals. A Delphi consensus development process yielded a list of recommended best practices to help ensure the safe use of insulin pen devices in hospitals and health systems. Copyright © 2016 by the American Society of Health-System Pharmacists, Inc. All rights reserved.

  12. Ionospheric Plasma Drift Analysis Technique Based On Ray Tracing

    Science.gov (United States)

    Ari, Gizem; Toker, Cenk

    2016-07-01

    Ionospheric drift measurements provide important information about the variability in the ionosphere, which can be used to quantify ionospheric disturbances caused by natural phenomena such as solar, geomagnetic, gravitational and seismic activities. One of the prominent ways for drift measurement depends on instrumentation based measurements, e.g. using an ionosonde. The drift estimation of an ionosonde depends on measuring the Doppler shift on the received signal, where the main cause of Doppler shift is the change in the length of the propagation path of the signal between the transmitter and the receiver. Unfortunately, ionosondes are expensive devices and their installation and maintenance require special care. Furthermore, the ionosonde network over the world or even Europe is not dense enough to obtain a global or continental drift map. In order to overcome the difficulties related to an ionosonde, we propose a technique to perform ionospheric drift estimation based on ray tracing. First, a two dimensional TEC map is constructed by using the IONOLAB-MAP tool which spatially interpolates the VTEC estimates obtained from the EUREF CORS network. Next, a three dimensional electron density profile is generated by inputting the TEC estimates to the IRI-2015 model. Eventually, a close-to-real situation electron density profile is obtained in which ray tracing can be performed. These profiles can be constructed periodically with a period of as low as 30 seconds. By processing two consequent snapshots together and calculating the propagation paths, we estimate the drift measurements over any coordinate of concern. We test our technique by comparing the results to the drift measurements taken at the DPS ionosonde at Pruhonice, Czech Republic. This study is supported by TUBITAK 115E915 and Joint TUBITAK 114E092 and AS CR14/001 projects.

  13. Advanced Multipath Mitigation Techniques for Satellite-Based Positioning Applications

    Directory of Open Access Journals (Sweden)

    Mohammad Zahidul H. Bhuiyan

    2010-01-01

    Full Text Available Multipath remains a dominant source of ranging errors in Global Navigation Satellite Systems (GNSS, such as the Global Positioning System (GPS or the future European satellite navigation system Galileo. Multipath is generally considered undesirable in the context of GNSS, since the reception of multipath can make significant distortion to the shape of the correlation function used for time delay estimation. However, some wireless communications techniques exploit multipath in order to provide signal diversity though in GNSS, the major challenge is to effectively mitigate the multipath, since we are interested only in the satellite-receiver transit time offset of the Line-Of-Sight (LOS signal for the receiver's position estimate. Therefore, the multipath problem has been approached from several directions in order to mitigate the impact of multipath on navigation receivers, including the development of novel signal processing techniques. In this paper, we propose a maximum likelihood-based technique, namely, the Reduced Search Space Maximum Likelihood (RSSML delay estimator, which is capable of mitigating the multipath effects reasonably well at the expense of increased complexity. The proposed RSSML attempts to compensate the multipath error contribution by performing a nonlinear curve fit on the input correlation function, which finds a perfect match from a set of ideal reference correlation functions with certain amplitude(s, phase(s, and delay(s of the multipath signal. It also incorporates a threshold-based peak detection method, which eventually reduces the code-delay search space significantly. However, the downfall of RSSML is the memory requirement which it uses to store the reference correlation functions. The multipath performance of other delay-tracking methods previously studied for Binary Phase Shift Keying-(BPSK- and Sine Binary Offset Carrier- (SinBOC- modulated signals is also analyzed in closed loop model with the new Composite

  14. CANDU in-reactor quantitative visual-based inspection techniques

    Science.gov (United States)

    Rochefort, P. A.

    2009-02-01

    This paper describes two separate visual-based inspection procedures used at CANDU nuclear power generating stations. The techniques are quantitative in nature and are delivered and operated in highly radioactive environments with access that is restrictive, and in one case is submerged. Visual-based inspections at stations are typically qualitative in nature. For example a video system will be used to search for a missing component, inspect for a broken fixture, or locate areas of excessive corrosion in a pipe. In contrast, the methods described here are used to measure characteristic component dimensions that in one case ensure ongoing safe operation of the reactor and in the other support reactor refurbishment. CANDU reactors are Pressurized Heavy Water Reactors (PHWR). The reactor vessel is a horizontal cylindrical low-pressure calandria tank approximately 6 m in diameter and length, containing heavy water as a neutron moderator. Inside the calandria, 380 horizontal fuel channels (FC) are supported at each end by integral end-shields. Each FC holds 12 fuel bundles. The heavy water primary heat transport water flows through the FC pressure tube, removing the heat from the fuel bundles and delivering it to the steam generator. The general design of the reactor governs both the type of measurements that are required and the methods to perform the measurements. The first inspection procedure is a method to remotely measure the gap between FC and other in-core horizontal components. The technique involves delivering vertically a module with a high-radiation-resistant camera and lighting into the core of a shutdown but fuelled reactor. The measurement is done using a line-of-sight technique between the components. Compensation for image perspective and viewing elevation to the measurement is required. The second inspection procedure measures flaws within the reactor's end shield FC calandria tube rolled joint area. The FC calandria tube (the outer shell of the FC) is

  15. Parameter tuning of PVD process based on artificial intelligence technique

    Science.gov (United States)

    Norlina, M. S.; Diyana, M. S. Nor; Mazidah, P.; Rusop, M.

    2016-07-01

    In this study, an artificial intelligence technique is proposed to be implemented in the parameter tuning of a PVD process. Due to its previous adaptation in similar optimization problems, genetic algorithm (GA) is selected to optimize the parameter tuning of the RF magnetron sputtering process. The most optimized parameter combination obtained from GA's optimization result is expected to produce the desirable zinc oxide (ZnO) thin film from the sputtering process. The parameters involved in this study were RF power, deposition time and substrate temperature. The algorithm was tested to optimize the 25 datasets of parameter combinations. The results from the computational experiment were then compared with the actual result from the laboratory experiment. Based on the comparison, GA had shown that the algorithm was reliable to optimize the parameter combination before the parameter tuning could be done to the RF magnetron sputtering machine. In order to verify the result of GA, the algorithm was also been compared to other well known optimization algorithms, which were, particle swarm optimization (PSO) and gravitational search algorithm (GSA). The results had shown that GA was reliable in solving this RF magnetron sputtering process parameter tuning problem. GA had shown better accuracy in the optimization based on the fitness evaluation.

  16. The effects of processing techniques on magnesium-based composite

    Science.gov (United States)

    Rodzi, Siti Nur Hazwani Mohamad; Zuhailawati, Hussain

    2016-12-01

    The aim of this study is to investigate the effect of processing techniques on the densification, hardness and compressive strength of Mg alloy and Mg-based composite for biomaterial application. The control sample (pure Mg) and Mg-based composite (Mg-Zn/HAp) were fabricated through mechanical alloying process using high energy planetary mill, whilst another Mg-Zn/HAp composite was fabricated through double step processing (the matrix Mg-Zn alloy was fabricated by planetary mill, subsequently HAp was dispersed by roll mill). As-milled powder was then consolidated by cold press into 10 mm diameter pellet under 400 MPa compaction pressure before being sintered at 300 °C for 1 hour under the flow of argon. The densification of the sintered pellets were then determined by Archimedes principle. Mechanical properties of the sintered pellets were characterized by microhardness and compression test. The results show that the density of the pellets was significantly increased by addition of HAp, but the most optimum density was observed when the sample was fabricated through double step processing (1.8046 g/cm3). Slight increment in hardness and ultimate compressive strength were observed for Mg-Zn/HAp composite that was fabricated through double step processing (58.09 HV, 132.19 MPa), as compared to Mg-Zn/HAp produced through single step processing (47.18 HV, 122.49 MPa).

  17. Electron tomography based on a total variation minimization reconstruction technique

    Energy Technology Data Exchange (ETDEWEB)

    Goris, B., E-mail: bart.goris@ua.ac.be [EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp (Belgium); Van den Broek, W. [EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp (Belgium); Batenburg, K.J. [Centrum Wiskunde and Informatica, Science Park 123, NL-1098XG Amsterdam (Netherlands); Vision Lab, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk (Belgium); Heidari Mezerji, H.; Bals, S. [EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp (Belgium)

    2012-02-15

    The 3D reconstruction of a tilt series for electron tomography is mostly carried out using the weighted backprojection (WBP) algorithm or using one of the iterative algorithms such as the simultaneous iterative reconstruction technique (SIRT). However, it is known that these reconstruction algorithms cannot compensate for the missing wedge. Here, we apply a new reconstruction algorithm for electron tomography, which is based on compressive sensing. This is a field in image processing specialized in finding a sparse solution or a solution with a sparse gradient to a set of ill-posed linear equations. Therefore, it can be applied to electron tomography where the reconstructed objects often have a sparse gradient at the nanoscale. Using a combination of different simulated and experimental datasets, it is shown that missing wedge artefacts are reduced in the final reconstruction. Moreover, it seems that the reconstructed datasets have a higher fidelity and are easier to segment in comparison to reconstructions obtained by more conventional iterative algorithms. -- Highlights: Black-Right-Pointing-Pointer A reconstruction algorithm for electron tomography is investigated based on total variation minimization. Black-Right-Pointing-Pointer Missing wedge artefacts are reduced by this algorithm. Black-Right-Pointing-Pointer The reconstruction is easier to segment. Black-Right-Pointing-Pointer More reliable quantitative information can be obtained.

  18. Damage detection technique by measuring laser-based mechanical impedance

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Hyeonseok; Sohn, Hoon [Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (Daehak-ro 291, Yuseong-gu, Daejeon 305-701) (Korea, Republic of)

    2014-02-18

    This study proposes a method for measurement of mechanical impedance using noncontact laser ultrasound. The measurement of mechanical impedance has been of great interest in nondestructive testing (NDT) or structural health monitoring (SHM) since mechanical impedance is sensitive even to small-sized structural defects. Conventional impedance measurements, however, have been based on electromechanical impedance (EMI) using contact-type piezoelectric transducers, which show deteriorated performances induced by the effects of a) Curie temperature limitations, b) electromagnetic interference (EMI), c) bonding layers and etc. This study aims to tackle the limitations of conventional EMI measurement by utilizing laser-based mechanical impedance (LMI) measurement. The LMI response, which is equivalent to a steady-state ultrasound response, is generated by shooting the pulse laser beam to the target structure, and is acquired by measuring the out-of-plane velocity using a laser vibrometer. The formation of the LMI response is observed through the thermo-mechanical finite element analysis. The feasibility of applying the LMI technique for damage detection is experimentally verified using a pipe specimen under high temperature environment.

  19. Acellular dermal matrix based nipple reconstruction: A modified technique

    Directory of Open Access Journals (Sweden)

    Raghavan Vidya

    2017-09-01

    Full Text Available Nipple areolar reconstruction (NAR has evolved with the advancement in breast reconstruction and can improve self-esteem and, consequently, patient satisfaction. Although a variety of reconstruction techniques have been described in the literature varying from nipple sharing, local flaps to alloplastic and allograft augmentation, over time, loss of nipple projection remains a major problem. Acellular dermal matrices (ADM have revolutionised breast reconstruction more recently. We discuss the use of ADM to act as a base plate and strut to give support to the base and offer nipple bulk and projection in a primary procedure of NAR with a local clover shaped dermal flap in 5 breasts (4 patients. We used 5-point Likert scales (1 = highly unsatisfied, 5 = highly satisfied to assess patient satisfaction. Median age was 46 years (range: 38–55 years. Nipple projection of 8 mm, 7 mm, and 7 mms were achieved in the unilateral cases and 6 mm in the bilateral case over a median 18 month period. All patients reported at least a 4 on the Likert scale. We had no post-operative complications. It seems that nipple areolar reconstruction [NAR] using ADM can achieve nipple projection which is considered aesthetically pleasing for patients.

  20. Introducing Risk Management Techniques Within Project Based Software Engineering Courses

    Science.gov (United States)

    Port, Daniel; Boehm, Barry

    2002-03-01

    In 1996, USC switched its core two-semester software engineering course from a hypothetical-project, homework-and-exam course based on the Bloom taxonomy of educational objectives (knowledge, comprehension, application, analysis, synthesis, and evaluation). The revised course is a real-client team-project course based on the CRESST model of learning objectives (content understanding, problem solving, collaboration, communication, and self-regulation). We used the CRESST cognitive demands analysis to determine the necessary student skills required for software risk management and the other major project activities, and have been refining the approach over the last 5 years of experience, including revised versions for one-semester undergraduate and graduate project course at Columbia. This paper summarizes our experiences in evolving the risk management aspects of the project course. These have helped us mature more general techniques such as risk-driven specifications, domain-specific simplifier and complicator lists, and the schedule as an independent variable (SAIV) process model. The largely positive results in terms of review of pass / fail rates, client evaluations, product adoption rates, and hiring manager feedback are summarized as well.

  1. Validation techniques of agent based modelling for geospatial simulations

    Science.gov (United States)

    Darvishi, M.; Ahmadi, G.

    2014-10-01

    One of the most interesting aspects of modelling and simulation study is to describe the real world phenomena that have specific properties; especially those that are in large scales and have dynamic and complex behaviours. Studying these phenomena in the laboratory is costly and in most cases it is impossible. Therefore, Miniaturization of world phenomena in the framework of a model in order to simulate the real phenomena is a reasonable and scientific approach to understand the world. Agent-based modelling and simulation (ABMS) is a new modelling method comprising of multiple interacting agent. They have been used in the different areas; for instance, geographic information system (GIS), biology, economics, social science and computer science. The emergence of ABM toolkits in GIS software libraries (e.g. ESRI's ArcGIS, OpenMap, GeoTools, etc) for geospatial modelling is an indication of the growing interest of users to use of special capabilities of ABMS. Since ABMS is inherently similar to human cognition, therefore it could be built easily and applicable to wide range applications than a traditional simulation. But a key challenge about ABMS is difficulty in their validation and verification. Because of frequent emergence patterns, strong dynamics in the system and the complex nature of ABMS, it is hard to validate and verify ABMS by conventional validation methods. Therefore, attempt to find appropriate validation techniques for ABM seems to be necessary. In this paper, after reviewing on Principles and Concepts of ABM for and its applications, the validation techniques and challenges of ABM validation are discussed.

  2. Validation techniques of agent based modelling for geospatial simulations

    Directory of Open Access Journals (Sweden)

    M. Darvishi

    2014-10-01

    Full Text Available One of the most interesting aspects of modelling and simulation study is to describe the real world phenomena that have specific properties; especially those that are in large scales and have dynamic and complex behaviours. Studying these phenomena in the laboratory is costly and in most cases it is impossible. Therefore, Miniaturization of world phenomena in the framework of a model in order to simulate the real phenomena is a reasonable and scientific approach to understand the world. Agent-based modelling and simulation (ABMS is a new modelling method comprising of multiple interacting agent. They have been used in the different areas; for instance, geographic information system (GIS, biology, economics, social science and computer science. The emergence of ABM toolkits in GIS software libraries (e.g. ESRI’s ArcGIS, OpenMap, GeoTools, etc for geospatial modelling is an indication of the growing interest of users to use of special capabilities of ABMS. Since ABMS is inherently similar to human cognition, therefore it could be built easily and applicable to wide range applications than a traditional simulation. But a key challenge about ABMS is difficulty in their validation and verification. Because of frequent emergence patterns, strong dynamics in the system and the complex nature of ABMS, it is hard to validate and verify ABMS by conventional validation methods. Therefore, attempt to find appropriate validation techniques for ABM seems to be necessary. In this paper, after reviewing on Principles and Concepts of ABM for and its applications, the validation techniques and challenges of ABM validation are discussed.

  3. Q methodology and a Delphi poll: a useful approach to researching a narrative approach to therapy

    OpenAIRE

    2009-01-01

    Q methodology and a Delphi poll combined qualitative and quantitative methods to explore definitions of White and Epston's (1990) narrative approach to therapy among a group of UK practitioners. A Delphi poll was used to generate statements about narrative therapy. The piloting of statements by the Delphi panel identified agreement about theoretical ideas underpinning narrative therapy and certain key practices. A wider group of practitioners ranked the statements in a Q sort and made qualita...

  4. Converting an OPC UA software development kit from Java to Delphi.

    OpenAIRE

    Uimonen, Teppo

    2016-01-01

    OPC UA provides a secure and interoperable standard for communication between devices and information systems, but to use it efectively in a software system, an OPC UA SDK written in the implementation language is needed. To develop one for Delphi programming language, this thesis studies how Prosys OPC UA Java SDK can be converted to Delphi. Three issues are identifed in the conversion. First, Java code should be translated to Delphi. Second, an interface is needed to use a C language OP...

  5. A Delphi approach to developing a core competency framework for family practice registered nurses in Ontario.

    Science.gov (United States)

    Moaveni, Azadeh; Gallinaro, Anna; Conn, Lesley Gotlib; Callahan, Sheilagh; Hammond, Melanie; Oandasan, Ivy

    2010-12-01

    This paper describes the results of a Delphi panel process to gain consensus on a role description and competency framework for family practice registered nurses (FP-RNs) in Ontario. Based on the findings from interviews and focus groups with family practice registered nurses and their inter-professional colleagues throughout Ontario, a core competency framework for FP-RNs emerged consisting of six distinct roles - Professional, Expert, Communicator, Synergist, Health Educator and Lifelong Learner - with accompanying enabling competency statements. This framework was refined and validated by a panel of experts from various nursing and family medicine associations and organizations through a Delphi consensus process. This core competency framework for FP-RNs was developed as a stepping stone for clarifying this very important and poorly understood role in family practice. As a result of this research, we expect a greater acknowledgement of the contributions and expertise of the FP-RN as well as the need to celebrate and profile this role. This work has already led to the establishment of a network of stakeholders from nursing organizations in Ontario who are considering opportunities to move the development and use of the competency framework forward.

  6. Scenarios for future agriculture in Finland: a Delphi study among agri-food sector stakeholders

    Directory of Open Access Journals (Sweden)

    P. RIKKONEN

    2008-12-01

    Full Text Available This article presents alternative scenarios for future agriculture in Finland up to 2025. These scenarios are the results of a large Delphi study carried out among Finnish agri-food sector stakeholders. The Delphi panel members gave their future view on desirable and probable futures. From these two dimensions, three scenarios were elaborated through the future images – the subjective future path and the importance analysis. The scenarios represent a technology optimistic “day-dream agriculture”, a probable future as “industrialised agriculture” and an undesirable future path as “drifting agriculture”. Two mini-scenarios are also presented. They are based on a discontinuity event as an unexpected impact of climate change and an analogy event as an ecological breakdown due to the expansive animal disease epidemics. In both mini-scenarios, the directions of storylines are dramatically changed. The scenarios support strategic planning introducing not only one forecast but alternative outcomes as a basis for future strategy and decisions. In this study the scenarios were constructed to address the opportunities as a desired vision and also the threats as to an undesirable future in the agricultural sector. These results bring to the table a Finnish agri-food expert community view of the future directions of relevant key issues in the agricultural policy agenda.;

  7. AQUILA: assessment of quality in lower limb arthroplasty. An expert Delphi consensus for total knee and total hip arthroplasty

    Directory of Open Access Journals (Sweden)

    Van der Linden-Van der Zwaag Henrica MJ

    2011-07-01

    Full Text Available Abstract Background In the light of both the importance and large numbers of case series and cohort studies (observational studies in orthopaedic literature, it is remarkable that there is currently no validated measurement tool to appraise their quality. A Delphi approach was used to develop a checklist for reporting quality, methodological quality and generalizability of case series and cohorts in total hip and total knee arthroplasty with a focus on aseptic loosening. Methods A web-based Delphi was conducted consisting of two internal rounds and three external rounds in order to achieve expert consensus on items considered relevant for reporting quality, methodological quality and generalizability. Results The internal rounds were used to construct a master list. The first external round was completed by 44 experts, 35 of them completed the second external round and 33 of them completed the third external round. Consensus was reached on an 8-item reporting quality checklist, a 6-item methodological checklist and a 22-item generalizability checklist. Conclusions Checklist for reporting quality, methodological quality and generalizability for case series and cohorts in total hip and total knee arthroplasty were successfully created through this Delphi. These checklists should improve the accuracy, completeness and quality of case series and cohorts regarding total hip and total knee arthroplasty.

  8. Defining an anaesthetic curriculum for medical undergraduates. A Delphi study.

    LENUS (Irish Health Repository)

    Rohan, Denise

    2009-01-01

    Anaesthesia is commonly taught to medical students. The duration and content of such teaching varies however and no consensus exists as to what constitutes an optimal curriculum. Anaesthetists possess the necessary knowledge and skills and operate in clinical settings suitable to provide training for medical undergraduates, especially in areas where deficiencies have been identified. This Delphi study was directed towards developing a consensus on an optimal anaesthesia, intensive care and pain medicine curriculum for medical undergraduates.

  9. Identifying Threshold Concepts for Information Literacy: A Delphi Study

    Directory of Open Access Journals (Sweden)

    Lori Townsend

    2016-06-01

    Full Text Available This study used the Delphi method to engage expert practitioners on the topic of threshold concepts for information literacy. A panel of experts considered two questions. First, is the threshold concept approach useful for information literacy instruction? The panel unanimously agreed that the threshold concept approach holds potential for information literacy instruction. Second, what are the threshold concepts for information literacy instruction? The panel proposed and discussed over fifty potential threshold concepts, finally settling on six information literacy threshold concepts.

  10. UTC Power/Delphi SECA CBS Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Gorman, Michael; Kerr, Rich

    2013-04-04

    The subject report summarizes the results of solid oxide fuel cell development conducted by UTC Power in conjunction with Delphi Automotive Systems under a cost-share program with from October 2008 through March of 2013. Over that period Delphi Automotive Systems developed a nearly four times larger area solid oxide fuel cell stack capable of operating on pre-reformed natural gas and simulated coal gas with durability demonstrated to 5,000 hours and projected to exceed 10,000 hours. The new stack design was scaled to 40-cell stacks with power output in excess of 6.25kW. Delphi also made significant strides in improving the manufacturability, yield and production cost of these solid oxide fuel cells over the course of the program. Concurrently, UTC Power developed a conceptual design for a 120 MW Integrated Gasification Fuel Cell (IGFC) operating on coal syngas with as high as 57% Higher Heating Value (HHV) efficiency as a measure of the feasibility of the technology. Subsequently a 400 kW on-site system preliminary design with 55% Lower Heating Value (LHV) efficiency operating on natural gas was down-selected from eighteen candidate designs. That design was used as the basis for a 25kW breadboard power plant incorporating four Delphi cell stacks that was tested on natural gas before the program was discontinued due to the sale of UTC Power in early 2013. Though the program was cut short of the endurance target of 3,000 hours, many aspects of the technology were proven including: large-area, repeatable cell manufacture, cell stack operation on simulated coal gas and natural gas and integrated power plant operation on natural gas. The potential of the technology for high efficiency stationary electric power generation is clear. Acceptable production costs, durability, and reliability in real world environments are the remaining challenges to commercialization.

  11. Ground-based intercomparison of two isoprene measurement techniques

    Directory of Open Access Journals (Sweden)

    E. Leibrock

    2003-01-01

    Full Text Available An informal intercomparison of two isoprene (C5H8 measurement techniques was carried out during Fall of 1998 at a field site located approximately 3 km west of Boulder, Colorado, USA. A new chemical ionization mass spectrometric technique (CIMS was compared to a well-established gas chromatographic technique (GC. The CIMS technique utilized benzene cation chemistry to ionize isoprene. The isoprene levels measured by the CIMS were often larger than those obtained with the GC. The results indicate that the CIMS technique suffered from an anthropogenic interference associated with air masses from the Denver, CO metropolitan area as well as an additional interference occurring in clean conditions. However, the CIMS technique is also demonstrated to be sensitive and fast. Especially after introduction of a tandem mass spectrometric technique, it is therefore a candidate for isoprene measurements in remote environments near isoprene sources.

  12. Ensuring Long Time Access to DELPHI Data:The IDEA Project

    Institute of Scientific and Technical Information of China (English)

    TizianoCampores; DanielWicke; 等

    2001-01-01

    The long term accessibility of its data is an important concern of the DELPHI collaboration.It is our assumption that the storage of the data itself will be a minor issue due to the progress in storage technologies.Therefore DELPHI focuses on a reorganisation of the data,which should provide a flexible and coherent framework for physics analysis in the future.This paper describes the current status of the IDEA(Improved DElphi Analysis) project which will ensure usability of DELPHI data for future generations of physicists.

  13. International mobility technology research: a Delphi study to identify challenges and compensatory strategies.

    Science.gov (United States)

    Jefferds, Alexandra N; Pearlman, Jon L; Wee, Joy; Cooper, Rory A

    2011-01-01

    We sought to identify logistical and ethical challenges to performing wheelchair-related research in low- and middle-income countries and to generate a list of compensatory strategies to address these challenges. Thirteen individuals with experience in the field participated in an online Delphi study. The surveys asked participants to identify research challenges, suggest strategies to address the selected challenges, and critique each other's strategies. Participants identified challenges in the use of research techniques, compensation for participation that does not result coercion, oral and written translation materials, funding for research, collaboration with local professionals, and "respect for persons." Effective international mobility research requires time, cultural sensitivity, collaboration, and careful planning. An understanding of these requirements can allow researchers to anticipate and compensate for common pitfalls of their work, thus making the research more productive and beneficial to subjects. Future research is required to verify the general effectiveness of compensatory strategies.

  14. Identifying the most critical project complexity factors using Delphi method: the Iranian construction industry

    Directory of Open Access Journals (Sweden)

    Mohammad Mehdi Mozaffari

    2012-09-01

    Full Text Available Complexity is one of the most important issues influencing success of any construction project and there are literally different studies devoted to detect important factors increasing complexity of projects. During the past few years, there have been growing interests in developing mass construction projects in Iran. The proposed study of this paper uses Delphi technique to find out about important factors as barriers of construction projects in Iran. The results show that among 47 project complexity factors, 19 factors are more important than others are. The study groups different factors into seven categories including environmental, organizational, objectives, tasks, stakeholders, technological, information systems and determines the relative importance of each. In each group, many other sub group activities are determined and they are carefully investigated. The study provides some detailed suggestions on each category to reduce the complexity of construction project.

  15. Inhaled treatment of COPD: a Delphi consensus statement

    Directory of Open Access Journals (Sweden)

    Ninane V

    2017-03-01

    Full Text Available Vincent Ninane,1 Jean-Louis Corhay,2 Paul Germonpré,3 Wim Janssens,4 Guy F Joos,5 Giuseppe Liistro,6 Walter Vincken,7 Sandra Gurdain,8 Evelyne Vanvlasselaer,8 An Lehouck8 1Department of Respiratory Medicine, Saint-Pierre Hospital, Université Libre de Bruxelles, Brussels, 2Department of Respiratory Medicine, CHU, Liege, 3Department of Respiratory Medicine, AZ Maria Middelares, Ghent, 4Department of Respiratory Medicine, Katholieke Universiteit, Leuven, 5Department of Respiratory Medicine, Ghent University Hospital, Ghent, 6Department of Respiratory Medicine, University Hospitals Saint-Luc, Brussels, 7Department of Respiratory Medicine, University Hospital Brussels, Brussels, 8Medical Department, Novartis Pharma, Vilvoorde, Belgium Background: Global Initiative for Chronic Obstructive Lung Disease (GOLD global strategy (2015 provides guidance for the treatment of chronic obstructive pulmonary disease (COPD with different first-choice options per GOLD category without specification. Objectives: To evaluate the level of medical experts’ consensus on their preferred first-choice treatment within different COPD categories. Methods: A two-round Delphi Panel consisting of 15 questions was completed by Belgian pulmonologists (n=31 and European (n=10 COPD experts. Results: Good consensus was reached by both expert groups for long-acting bronchodilators instead of short-acting bronchodilators as first-choice treatment in GOLD A. Single bronchodilation with long-acting muscarinic antagonist (LAMA was preferred over long-acting ß2-agonist (LABA and LABA/LAMA as first-choice treatment in GOLD B and GOLD C. For GOLD D patients based on the forced expiratory volume in 1 second (FEV1<50%, a very good consensus was reached for LAMA/LABA as first-choice treatment. For GOLD D patients based on frequent or severe exacerbations, there was a good consensus for LABA/LAMA/inhaled corticosteroids (ICS as first choice in the Belgian group. According to the European

  16. Signal Processing Techniques for Silicon Drift Detector Based X-Ray Spectrometer for Planatary Instruments

    Science.gov (United States)

    Patel, A.; Shanmugam, M.; Ladiya, T.

    2016-10-01

    We are developing SDD based x-ray spectrometer using various pulse height analysis techniques. This study will help to identify the proper processing technique based on instrument specifications which can be used for future scientific missions.

  17. Biogeosystem technique as a base of Sustainable Irrigated Agriculture

    Science.gov (United States)

    Batukaev, Abdulmalik

    2016-04-01

    The world water strategy is to be changed because the current imitational gravitational frontal isotropic-continual paradigm of irrigation is not sustainable. This paradigm causes excessive consumption of fresh water - global deficit - up to 4-15 times, adverse effects on soils and landscapes. Current methods of irrigation does not control the water spread throughout the soil continuum. The preferable downward fluxes of irrigation water are forming, up to 70% and more of water supply loses into vadose zone. The moisture of irrigated soil is high, soil loses structure in the process of granulometric fractions flotation decomposition, the stomatal apparatus of plant leaf is fully open, transpiration rate is maximal. We propose the Biogeosystem technique - the transcendental, uncommon and non-imitating methods for Sustainable Natural Resources Management. New paradigm of irrigation is based on the intra-soil pulse discrete method of water supply into the soil continuum by injection in small discrete portions. Individual volume of water is supplied as a vertical cylinder of soil preliminary watering. The cylinder position in soil is at depth form 10 to 30 cm. Diameter of cylinder is 1-2 cm. Within 5-10 min after injection the water spreads from the cylinder of preliminary watering into surrounding soil by capillary, film and vapor transfer. Small amount of water is transferred gravitationally to the depth of 35-40 cm. The soil watering cylinder position in soil profile is at depth of 5-50 cm, diameter of the cylinder is 2-4 cm. Lateral distance between next cylinders along the plant raw is 10-15 cm. The soil carcass which is surrounding the cylinder of non-watered soil remains relatively dry and mechanically stable. After water injection the structure of soil in cylinder restores quickly because of no compression from the stable adjoining volume of soil and soil structure memory. The mean soil thermodynamic water potential of watered zone is -0.2 MPa. At this potential

  18. Structuring Task-based Interaction through Collaborative Learning Techniques (2)

    Institute of Scientific and Technical Information of China (English)

    William Littlewood

    2004-01-01

    @@ Techniques for collaborative learning In this section the focus will move from broad strategies to specific techniques (often also called "structures") through which the strategies can be realized. It gives a selection of techniques which have proved (in my own experience as well as that of others) particularly useful in pro-viding contexts for practice, exploration and /or interaction in the second language classroom.

  19. Research on technique of wavefront retrieval based on Foucault test

    Science.gov (United States)

    Yuan, Lvjun; Wu, Zhonghua

    2010-05-01

    During finely grinding the best fit sphere and initial stage of polishing, surface error of large aperture aspheric mirrors is too big to test using common interferometer. Foucault test is widely used in fabricating large aperture mirrors. However, the optical path is disturbed seriously by air turbulence, and changes of light and dark zones can not be identified, which often lowers people's judging ability and results in making mistake to diagnose surface error of the whole mirror. To solve the problem, the research presents wavefront retrieval based on Foucault test through digital image processing and quantitative calculation. Firstly, real Foucault image can be gained through collecting a variety of images by CCD, and then average these image to eliminate air turbulence. Secondly, gray values are converted into surface error values through principle derivation, mathematical modeling, and software programming. Thirdly, linear deviation brought by defocus should be removed by least-square method to get real surface error. At last, according to real surface error, plot wavefront map, gray contour map and corresponding pseudo color contour map. The experimental results indicates that the three-dimensional wavefront map and two-dimensional contour map are able to accurately and intuitively show surface error on the whole mirrors under test, and they are beneficial to grasp surface error as a whole. The technique can be used to guide the fabrication of large aperture and long focal mirrors during grinding and initial stage of polishing the aspheric surface, which improves fabricating efficiency and precision greatly.

  20. Formal Verification Techniques Based on Boolean Satisfiability Problem

    Institute of Scientific and Technical Information of China (English)

    Xiao-Wei Li; Guang-Hui Li; Ming Shao

    2005-01-01

    This paper exploits Boolean satisfiability problem in equivalence checking and model checking respectively. A combinational equivalence checking method based on incremental satisfiability is presented. This method chooses the can didate equivalent pairs with some new techniques, and uses incremental satisfiability algorithm to improve its performance. By substituting the internal equivalent pairs and converting the equivalence relations into conjunctive normal form (CNF) formulas, this approach can avoid the false negatives, and reduce the search space of SAT procedure. Experimental results on ISCAS'85 benchmark circuits show that, the presented approach is faster and more robust than those existed in literature.This paper also presents an algorithm for extracting of unsatisfiable core, which has an important application in abstraction and refinement for model checking to alleviate the state space explosion bottleneck. The error of approximate extraction is analyzed by means of simulation. An analysis reveals that an interesting phenomenon occurs, with the increasing density of the formula, the average error of the extraction is decreasing. An exact extraction approach for MU subformula, referred to as pre-assignment algorithm, is proposed. Both theoretical analysis and experimental results show that it is more efficient.

  1. A formal model for integrity protection based on DTE technique

    Institute of Scientific and Technical Information of China (English)

    JI Qingguang; QING Sihan; HE Yeping

    2006-01-01

    In order to provide integrity protection for the secure operating system to satisfy the structured protection class' requirements, a DTE technique based integrity protection formalization model is proposed after the implications and structures of the integrity policy have been analyzed in detail. This model consists of some basic rules for configuring DTE and a state transition model, which are used to instruct how the domains and types are set, and how security invariants obtained from initial configuration are maintained in the process of system transition respectively. In this model, ten invariants are introduced, especially, some new invariants dealing with information flow are proposed, and their relations with corresponding invariants described in literatures are also discussed.The thirteen transition rules with well-formed atomicity are presented in a well-operational manner. The basic security theorems correspond to these invariants and transition rules are proved. The rationalities for proposing the invariants are further annotated via analyzing the differences between this model and ones described in literatures. At last but not least, future works are prospected, especially, it is pointed out that it is possible to use this model to analyze SE-Linux security.

  2. Biofunctionalization of Si nanowires using a solution based technique

    Science.gov (United States)

    Williams, Elissa H.; Davydov, Albert V.; Oleshko, Vladimir P.; Lin, Nancy J.; Steffens, Kristen L.; Manocchi, Amy K.; Krylyuk, Sergiy; Rao, Mulpuri V.; Schreifels, John A.

    2012-10-01

    Here we present a solution based functionalization technique for streptavidin (SA) protein conjugation to silicon nanowires (Si NWs). Si NWs, with a diameter of 110 nm to 130 nm and a length of 5 μm to 10 μm, were functionalized with 3-aminopropyltriethoxysilane (APTES) followed by biotin for the selective attachment of SA. High-resolution transmission electron microscopy (HRTEM) and atomic force microscopy (AFM) showed that the Si NWs were conformally coated with 20 nm to 30 nm thick APTES, biotin, and SA layers upon functionalization. Successful attachment of each bio/organic layer was confirmed by X-ray photoelectron spectroscopy (XPS) and fluorescence microscopy. Fluorescence microscopy also demonstrated that there was an undesirable non-specific binding of the SA protein as well as a control protein, bovine serum albumin (BSA), to the APTES-coated Si NWs. However, inhibition of BSA binding and enhancement of SA binding were achieved following the biotinylation step. The biofunctionalized Si NWs show potential as label-free biosensing platforms for the specific and selective detection of biomolecules.

  3. Channel Based Adaptive Rate Control Technique for MANET

    Directory of Open Access Journals (Sweden)

    R. Bharathiraja

    2014-04-01

    Full Text Available In Mobile Ad hoc Networks (MANET, most of the existing works does not consider energy efficiency during selecting the appropriate route. Hence in MANET selecting the appropriate route and also maintaining energy efficiency is very important. Hence in order to overcome these issues, in this study we propose Channel Based Adaptive Rate Control technique for MANET. Here the most appropriate links is selected to transmit the node with efficient power consumption. The node broadcasts the information of its outgoing and incoming links in NSET instead of waiting for the feedback informattion from receiver. The number of packets transmitted in a channel access time is maximized by implementing the benefit ratio in rate selection algorithm. This study also introduces node cooperation, in node cooperation the node determines the feasibility of new rate setting determined by rate selection algorithm and it carries out new setting if it is feasible by following help, ack, reject and accept method. By simulation results we show that the proposed approach is power efficient and also increases the trasmission rate.

  4. Laser polymerization-based novel lift-off technique

    Energy Technology Data Exchange (ETDEWEB)

    Bhuian, B. [Tyndall National Institute, Lee Maltings, Prospect Row, Cork (Ireland); Department of Microelectronic Engineering, University College Cork, Cork (Ireland); Winfield, R.J. [Tyndall National Institute, Lee Maltings, Prospect Row, Cork (Ireland)], E-mail: richard.winfield@tyndall.ie; Crean, G.M. [Tyndall National Institute, Lee Maltings, Prospect Row, Cork (Ireland); Department of Microelectronic Engineering, University College Cork, Cork (Ireland)

    2009-03-01

    The fabrication of microstructures by two-photon polymerization has been widely reported as a means of directly writing three-dimensional nanoscale structures. In the majority of cases a single point serial writing technique is used to form a polymer model. Single layer writing can also be used to fabricate two-dimensional patterns and we report an extension of this capability by using two-photon polymerization to form a template that can be used as a sacrificial layer for a novel lift-off process. A Ti:sapphire laser, with wavelength 795 nm, 80 MHz repetition rate, 100 fs pulse duration and an average power of 700 mW, was used to write 2D grid patterns with pitches of 0.8 and 1.0 {mu}m in a urethane acrylate resin that was spun on to a lift-off base layer. This was overcoated with gold and the grid lifted away to leave an array of gold islands. The optical transmission properties of the gold arrays were measured and found to be in agreement with a rigorous coupled-wave analysis simulation.

  5. Orientation of student entrepreneurial practices based on administrative techniques

    Directory of Open Access Journals (Sweden)

    Héctor Horacio Murcia Cabra

    2005-07-01

    Full Text Available As part of the second phase of the research project «Application of a creativity model to update the teaching of the administration in Colombian agricultural entrepreneurial systems» it was decided to re-enforce student planning and execution of the students of the Agricultural business Administration Faculty of La Salle University. Those finishing their studies were given special attention. The plan of action was initiated in the second semester of 2003. It was initially defined as a model of entrepreneurial strengthening based on a coherent methodology that included the most recent administration and management techniques. Later, the applicability of this model was tested in some organizations of the agricultural sector that had asked for support in their planning processes. Through an investigation-action process the methodology was redefined in order to arrive at a final model that could be used by faculty students and graduates. The results obtained were applied to the teaching of Entrepreneurial Laboratory of ninth semester students with the hope of improving administrative support to agricultural enterprises. Following this procedure more than 100 students and 200 agricultural producers have applied this procedure between June 2003 and July 2005. The methodology used and the results obtained are presented in this article.

  6. Image content authentication technique based on Laplacian Pyramid

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    This paper proposes a technique of image content authentication based on the Laplacian Pyramid to verify the authenticity of image content.First,the image is decomposed into Laplacian Pyramid before the transformation.Next,the smooth and detail properties of the original image are analyzed according to the Laplacian Pyramid,and the properties are classified and encoded to get the corresponding characteristic values.Then,the signature derived from the encrypted characteristic values is embedded in the original image as a watermark.After the reception,the characteristic values of the received image are compared with the watermark drawn out from the image.The algorithm automatically identifies whether the content is tampered by means of morphologic filtration.The information of tampered location is Presented at the same time.Experimental results show that the pro posed authentication algorithm can effectively detect the event and location when the original image content is tampered.Moreover,it can tolerate some distortions produced by compression,filtration and noise degradation.

  7. WORMHOLE ATTACK MITIGATION IN MANET: A CLUSTER BASED AVOIDANCE TECHNIQUE

    Directory of Open Access Journals (Sweden)

    Subhashis Banerjee

    2014-01-01

    Full Text Available A Mobile Ad-Hoc Network (MANET is a self configuring, infrastructure less network of mobile devices connected by wireless links. Loopholes like wireless medium, lack of a fixed infrastructure, dynamic topology, rapid deployment practices, and the hostile environments in which they may be deployed, make MANET vulnerable to a wide range of security attacks and Wormhole attack is one of them. During this attack a malicious node captures packets from one location in the network, and tunnels them to another colluding malicious node at a distant point, which replays them locally. This paper presents a cluster based Wormhole attack avoidance technique. The concept of hierarchical clustering with a novel hierarchical 32- bit node addressing scheme is used for avoiding the attacking path during the route discovery phase of the DSR protocol, which is considered as the under lying routing protocol. Pinpointing the location of the wormhole nodes in the case of exposed attack is also given by using this method.

  8. Weighted graph based ordering techniques for preconditioned conjugate gradient methods

    Science.gov (United States)

    Clift, Simon S.; Tang, Wei-Pai

    1994-01-01

    We describe the basis of a matrix ordering heuristic for improving the incomplete factorization used in preconditioned conjugate gradient techniques applied to anisotropic PDE's. Several new matrix ordering techniques, derived from well-known algorithms in combinatorial graph theory, which attempt to implement this heuristic, are described. These ordering techniques are tested against a number of matrices arising from linear anisotropic PDE's, and compared with other matrix ordering techniques. A variation of RCM is shown to generally improve the quality of incomplete factorization preconditioners.

  9. Delphi electric cam phasing as an enabler for CO{sub 2} reduction; Der elektrisch angetriebene Nockenwellenversteller von Delphi

    Energy Technology Data Exchange (ETDEWEB)

    Jacque, Etienne; Mafrica, Sebastien; Stoltz-Douchet, Sebastien [Delphi Powertrain Systems, Bascharage (Luxembourg); David, Pascal

    2013-02-01

    The electric variable cam phaser (EVCP) from Delphi allows fast, wide and precise phasing independent of engine oil pressure. This allows additional degrees of freedom for the introduction of new combustion systems for gasoline, diesel and HCCI engines with very low consumption of electrical energy. The system also meets the new requirements of start stop and hybrid applications, in particular when phasing is required at very low engine speeds. (orig.)

  10. Delphi Method Validation of a Procedural Performance Checklist for Insertion of an Ultrasound-Guided Internal Jugular Central Line.

    Science.gov (United States)

    Hartman, Nicholas; Wittler, Mary; Askew, Kim; Manthey, David

    2016-01-01

    Placement of ultrasound-guided central lines is a critical skill for physicians in several specialties. Improving the quality of care delivered surrounding this procedure demands rigorous measurement of competency, and validated tools to assess performance are essential. Using the iterative, modified Delphi technique and experts in multiple disciplines across the United States, the study team created a 30-item checklist designed to assess competency in the placement of ultrasound-guided internal jugular central lines. Cronbach α was .94, indicating an excellent degree of internal consistency. Further validation of this checklist will require its implementation in simulated and clinical environments.

  11. Construction of an Appraisal System of Clinical Synthetical Competence for Nursing Undergraduates Based on Delphi Method and Analytic Hierarchy Process%基于德尔菲法和层次分析法确立护理专业本科学生临床综合能力评价体系

    Institute of Scientific and Technical Information of China (English)

    张旋; 陈璇; 段培蓓; 张园园

    2012-01-01

    目的 确定护理专业本科学生临床综合能力评价体系.方法 采用德尔菲法(Delphi)对25名专家进行问卷调查确定评价体系分层结构模型,采用层析分析法(analytic hierarchy process,AHP)计算各级指标权重和进行总排序的一致性检验.结果 最终确定包含6个一级指标、21个二级指标、69个三级指标在内的护理专业本科学生临床综合能力评价体系.三级指标中组合权重系数赋值最高指标为"在评估、实施、评价和健康教育中能运用沟通技巧"(W=0.1246),赋值最低指标为"科研点有一定研究价值"(W=0.0003)和"科研查新符合要求"(W=0.0003).各级指标的总排序结果 具有满意的一致性.结论 该评价体系科学、可靠,可为护理专业本科学生综合能力评价提供依据.%Objective To establish an appraisal system of clinical synthetical competence for nursing undergraduates. Methods The level construction tree model was established by a questionnaire survey to 25 specialists based on Delphi method. The weights of each indicator in three grades and the consistency check of the total sorts were calculated based on analytic hierarchy processC AHP). Results The appraisal system of clinical synthetical competence for nursing undergraduates is ultimately established which contained 6 first-level indicators,21 second-level indicators and 69 third-level indicators. In the third-level indicators, whose combination weight value was highest was" The students can use the communication skills when assessing, carrying out,evaluating and giving health education"(W = 0. 1246) ,the lowest was"The research point has some value. "(W = 0. 0003) and "The research novelty search meet needs. "(W = 0. 0003) The result of the consistency check of the total sorts had a satisfactory consistency. Conclusion The appraisal system is scientific and reliable to give us evidence or appraising the clinical synthetical competence for nursing undergraduates.

  12. Adoption of farm-based irrigation water-saving techniques in the Guanzhong Plain, China

    NARCIS (Netherlands)

    Tang, Jianjun; Folmer, Henk; Xue, Jianhong

    2016-01-01

    This article analyses adoption of farm-based irrigation water saving techniques, based on a cross-sectional data set of 357 farmers in the Guanzhong Plain, China. Approximately 83% of the farmers use at least one farm-based water-saving technique. However, the traditional, inefficient techniques bor

  13. A national Delphi to determine developmental progression of quality and safety competencies in nursing education.

    Science.gov (United States)

    Barton, Amy J; Armstrong, Gail; Preheim, Gayle; Gelmon, Sherril B; Andrus, Lynne C

    2009-01-01

    Quality and Safety Education for Nurses (QSEN) faculty outlined 6 competency domains: patient-centered care, teamwork and collaboration, evidence-based practice, quality improvement, safety, and informatics. In this study, 18 subject matter experts participated in a web-based modified Delphi survey between October 2008 and February 2009 to determine whether there was consensus on the developmental progression of knowledge, skill, and attitude elements within the QSEN competencies. Support for creation of curricular threads to facilitate student progressive achievement of the QSEN competencies was validated. Competency development related to the individual patient was emphasized early in the curriculum, whereas teams and systems were emphasized later. Complex concepts such as teamwork and collaboration, evidence-based practice, quality improvement, and informatics were emphasized in advanced courses. Experts outlined a developmental approach in curriculum design, which would potentially encourage practice, reinforcement of learning, and recognition of context of care.

  14. Evidence-based surgical techniques for caesarean section

    DEFF Research Database (Denmark)

    Aabakke, Anna J M; Secher, Niels Jørgen; Krebs, Lone

    2014-01-01

    Caesarean section (CS) is a common surgical procedure, and in Denmark 21% of deliveries is by CS. There is an increasing amount of scientific evidence to support the different surgical techniques used at CS. This article reviews the literature regarding CS techniques. There is still a lack...

  15. A Technique for Volumetric CSG Based on Morphology

    DEFF Research Database (Denmark)

    Bærentzen, Jakob Andreas; Christensen, Niels Jørgen

    2001-01-01

    In this paper, a new technique for volumetric CSG is presented. The technique requires the input volumes to correspond to solids which fulfill a voxelization suitability criterion. Assume the CSG operation is union. The volumetric union of two such volumes is defined in terms of the voxelization...

  16. A Study on the Performance Evaluation Indicator System of Non-profit Investment Project in Post-disaster Reconstruction ——Based on Delphi Method%灾后重建公益性投资项目绩效评估指标体系研究——基于德尔菲法

    Institute of Scientific and Technical Information of China (English)

    肖靖; 宋伟

    2012-01-01

    In order to explore the methods of the performance evaluation of non-profit project in post-disaster reconstruction,this paper puts forward nine dimensions of performance evaluation based on the mainstream thought of"4E" in the performance evaluation of public sector.And then a full and systematic description of the use of these dimensions is carried out by using Delphi method and SPSS,and the possible scope of the dimensions selection for performance evaluation is obtained by descriptive and correlation analysis.Finally,the above nine dimensions are classified into 4 dimensions: economy,efficiency,effectiveness and equality,and specific performance evaluation indicators are proposed for each demension.%为了探索灾后重建公益性项目绩效评价方法,在公共部门绩效评估的4E主流思想上,提出了灾后重建公益性项目绩效评估的九大维度。运用Delphi法和SPSS软件对这些维度的使用情况进行了全面系统的描述,通过数据整理进行描述性、相关性分析,得出了灾后重建公益性投资项目绩效评估维度选择的可能范围。最后,把上述的九大维度具体的划分到经济性、效率性、效益性、公平性等4个维度,并提出了每个维度下具体的绩效评估指标。

  17. A Lossless Data Hiding Technique based on AES-DWT

    Directory of Open Access Journals (Sweden)

    Gustavo Fernandaacute;ndez Torres2

    2012-09-01

    Full Text Available In this paper we propose a new data hiding technique. The new technique uses steganography and cryptography on images with a size of 256x256 pixels and an 8-bit grayscale format. There are design restrictions such as a fixed-size cover image, and reconstruction without error of the hidden image. The steganography technique uses a Haar-DWT (Discrete Wavelet Transform with hard thresholding and LSB (Less Significant Bit technique on the cover image. The algorithms used for compressing and ciphering the secret image are lossless JPG and AES, respectively. The proposed technique is used to generate a stego image which provides a double type of security that is robust against attacks. Results are reported for different thresholds levels in terms of PSNR.

  18. SPAM CLASSIFICATION BASED ON SUPERVISED LEARNING USING MACHINE LEARNING TECHNIQUES

    Directory of Open Access Journals (Sweden)

    T. Hamsapriya

    2011-12-01

    Full Text Available E-mail is one of the most popular and frequently used ways of communication due to its worldwide accessibility, relatively fast message transfer, and low sending cost. The flaws in the e-mail protocols and the increasing amount of electronic business and financial transactions directly contribute to the increase in e-mail-based threats. Email spam is one of the major problems of the today’s Internet, bringing financial damage to companies and annoying individual users. Spam emails are invading users without their consent and filling their mail boxes. They consume more network capacity as well as time in checking and deleting spam mails. The vast majority of Internet users are outspoken in their disdain for spam, although enough of them respond to commercial offers that spam remains a viable source of income to spammers. While most of the users want to do right think to avoid and get rid of spam, they need clear and simple guidelines on how to behave. In spite of all the measures taken to eliminate spam, they are not yet eradicated. Also when the counter measures are over sensitive, even legitimate emails will be eliminated. Among the approaches developed to stop spam, filtering is the one of the most important technique. Many researches in spam filtering have been centered on the more sophisticated classifier-related issues. In recent days, Machine learning for spam classification is an important research issue. The effectiveness of the proposed work is explores and identifies the use of different learning algorithms for classifying spam messages from e-mail. A comparative analysis among the algorithms has also been presented.

  19. Bio-inspired computational techniques based on advanced condition monitoring

    Institute of Scientific and Technical Information of China (English)

    Su Liangcheng; He Shan; Li Xiaoli; Li Xinglin

    2011-01-01

    The application of bio-inspired computational techniques to the field of condition monitoring is addressed.First, the bio-inspired computational techniques are briefly addressed; the advantages and disadvantages of these computational methods are made clear. Then, the roles of condition monitoring in the predictive maintenance and failures prediction and the development trends of condition monitoring are discussed. Finally, a case study on the condition monitoring of grinding machine is described, which shows the application of bio-inspired computational technique to a practical condition monitoring system.

  20. Estimation of land remote sensing satellites productivity based on the simulation technique

    Science.gov (United States)

    Kurenkov, Vladimir I.; Kucherov, Alexander S.; Yakischik, Artem A.

    2017-01-01

    The problem of estimating land remote sensing satellites productivity is considered. Here, productivity is treated as a number of separate survey objects taken in a definite time. Appropriate mathematical models have been developed. Some results obtained with the help of the software worked out in Delphi programming support environment are presented.