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Sample records for quality evaluation model

  1. Quality Evaluation Model for Map Labeling

    Institute of Scientific and Technical Information of China (English)

    FAN Hong; ZHANG Zuxun; DU Daosheng

    2005-01-01

    This paper discusses and sums up the basic criterions of guaranteeing the labeling quality and abstracts the four basic factors including the conflict for a label with a label, overlay for label with the features, position's priority and the association for a label with its feature. By establishing the scoring system, a formalized four-factors quality evaluation model is constructed. Last, this paper introduces the experimental result of the quality evaluation model applied to the automatic map labeling system-MapLabel.

  2. Evaluation of video quality models for multimedia

    Science.gov (United States)

    Brunnström, Kjell; Hands, David; Speranza, Filippo; Webster, Arthur

    2008-02-01

    The Video Quality Experts Group (VQEG) is a group of experts from industry, academia, government and standards organizations working in the field of video quality assessment. Over the last 10 years, VQEG has focused its efforts on the evaluation of objective video quality metrics for digital video. Objective video metrics are mathematical models that predict the picture quality as perceived by an average observer. VQEG has completed validation tests for full reference objective metrics for the Standard Definition Television (SDTV) format. From this testing, two ITU Recommendations were produced. This standardization effort is of great relevance to the video industries because objective metrics can be used for quality control of the video at various stages of the delivery chain. Currently, VQEG is undertaking several projects in parallel. The most mature project is concerned with objective measurement of multimedia content. This project is probably the largest coordinated set of video quality testing ever embarked upon. The project will involve the collection of a very large database of subjective quality data. About 40 subjective assessment experiments and more than 160,000 opinion scores will be collected. These will be used to validate the proposed objective metrics. This paper describes the test plan for the project, its current status, and one of the multimedia subjective tests.

  3. Advances in Application of Models in Soil Quality Evaluation

    Institute of Scientific and Technical Information of China (English)

    SI Zhi-guo; WANG Ji-jie; YU Yuan-chun; LIANG Guan-feng; CHEN Chang-ren; SHU Hong-lan

    2012-01-01

    Soil quality is a comprehensive reflection of soil properties.Since the soil quality concept was put forward in the 1970s,the quality of different type soils in different regions have been evaluated through a variety of evaluation methods,but it still lacks universal soil quantity evaluation models and methods.In this paper,the applications and prospects of grey relevancy comprehensive evaluation model,attribute hierarchical model,fuzzy comprehensive evaluation model,matter-element model,RAGA-based PPC /PPE model and GIS model in soil quality evaluation are reviewed.

  4. Evaluation of CASP8 model quality predictions

    KAUST Repository

    Cozzetto, Domenico

    2009-01-01

    The model quality assessment problem consists in the a priori estimation of the overall and per-residue accuracy of protein structure predictions. Over the past years, a number of methods have been developed to address this issue and CASP established a prediction category to evaluate their performance in 2006. In 2008 the experiment was repeated and its results are reported here. Participants were invited to infer the correctness of the protein models submitted by the registered automatic servers. Estimates could apply to both whole models and individual amino acids. Groups involved in the tertiary structure prediction categories were also asked to assign local error estimates to each predicted residue in their own models and their results are also discussed here. The correlation between the predicted and observed correctness measures was the basis of the assessment of the results. We observe that consensus-based methods still perform significantly better than those accepting single models, similarly to what was concluded in the previous edition of the experiment. © 2009 WILEY-LISS, INC.

  5. Fuzzy Based Evaluation of Software Quality Using Quality Models and Goal Models

    Directory of Open Access Journals (Sweden)

    Arfan Mansoor

    2015-09-01

    Full Text Available Software quality requirements are essential part for the success of software development. Defined and guaranteed quality in software development requires identifying, refining, and predicting quality properties by appropriate means. Goal models of goal oriented requirements engineering (GORE and quality models are useful for modelling of functional goals as well as for quality goals. Once the goal models are obtained representing the functional requirements and integrated quality goals, there is need to evaluate each functional requirement arising from functional goals and quality requirement arising from quality goals. The process consist of two main parts. In first part, the goal models are used to evaluate functional goals. The leaf level goals are used to establish the evaluation criteria. Stakeholders are also involved to contribute their opinions about the importance of each goal (functional and/or quality goal. Stakeholder opinions are then converted into quantifiable numbers using triangle fuzzy numbers (TFN. After applying the defuzzification process on TFN, the scores (weights are obtained for each goal. In second part specific quality goals are identified, refined/tailored based on existing quality models and their evaluation is performed similarly using TFN and by applying defuzzification process. The two step process helps to evaluate each goal based on stakeholder opinions and to evaluate the impact of quality requirements. It also helps to evaluate the relationships among functional goals and quality goals. The process is described and applied on ’cyclecomputer’ case study.

  6. College Teaching Quality Evaluation Based on System Dynamics Model

    Directory of Open Access Journals (Sweden)

    Zheng Kang-ning

    2016-01-01

    Full Text Available This paper analyzes the main factors that influence the teaching quality and the cause and effect relationship between them, using system dynamics to establish the evaluation model of teaching quality in Colleges and universities. Taking a college A for example, this model is induced in the simulation of teaching quality, then the change process of teaching quality and feedback mechanism between these effective factors is proposed, as well as the teaching quality change under different policy parameters. And with the purpose of improving teaching quality, some measures are put forward, including staff quality, management quality, organization quality and environment quality.

  7. Performance evaluation of quality monitor models in spot welding

    Institute of Scientific and Technical Information of China (English)

    Zhang Zhongdian; Li Dongqing; Wang Kai

    2005-01-01

    Performance of quality monitor models in spot welding determines the monitor precision directly, so it's crucial to evaluate it. Previously, mean square error ( MSE ) is often used to evaluate performances of models, but it can only show the total errors of finite specimens of models, and cannot show whether the quality information inferred from models are accurate and reliable enough or not. For this reason, by means of measure error theory, a new way to evaluate the performances of models according to the error distributions is developed as follows: Only if correct and precise enough the error distribution of model is, the quality information inferred from model is accurate and reliable.

  8. QUALITY OF AN ACADEMIC STUDY PROGRAMME - EVALUATION MODEL

    Directory of Open Access Journals (Sweden)

    Mirna Macur

    2016-01-01

    Full Text Available Quality of an academic study programme is evaluated by many: employees (internal evaluation and by external evaluators: experts, agencies and organisations. Internal and external evaluation of an academic programme follow written structure that resembles on one of the quality models. We believe the quality models (mostly derived from EFQM excellence model don’t fit very well into non-profit activities, policies and programmes, because they are much more complex than environment, from which quality models derive from (for example assembly line. Quality of an academic study programme is very complex and understood differently by various stakeholders, so we present dimensional evaluation in the article. Dimensional evaluation, as opposed to component and holistic evaluation, is a form of analytical evaluation in which the quality of value of the evaluand is determined by looking at its performance on multiple dimensions of merit or evaluation criteria. First stakeholders of a study programme and their views, expectations and interests are presented, followed by evaluation criteria. They are both joined into the evaluation model revealing which evaluation criteria can and should be evaluated by which stakeholder. Main research questions are posed and research method for each dimension listed.

  9. Modeling and Evaluation of Multimodal Perceptual Quality

    DEFF Research Database (Denmark)

    Petersen, Kim T; Hansen, Steffen Duus; Sørensen, John Aasted

    1997-01-01

    The increasing performance requirements of multimedia modalities, carrying speech, audio, video, image, and graphics emphasize the need for assessment methods of the total quality of a multimedia system and methods for simultaneous analysis of the system components. It is important to take into a...

  10. QUALITY SERVICES EVALUATION MODEL BASED ON DEDICATED SOFTWARE TOOL

    Directory of Open Access Journals (Sweden)

    ANDREEA CRISTINA IONICĂ

    2012-10-01

    Full Text Available In this paper we introduced a new model, called Service Quality (SQ, which combines QFD and SERVQUAL methods. This model takes from the SERVQUAL method the five dimensions of requirements and three of characteristics and from the QFD method the application methodology. The originality of the SQ model consists in computing a global index that reflects the customers’ requirements accomplishment level by the quality characteristics. In order to prove the viability of the SQ model, there was developed a software tool that was applied for the evaluation of a health care services provider.

  11. Evaluation of model quality predictions in CASP9

    KAUST Repository

    Kryshtafovych, Andriy

    2011-01-01

    CASP has been assessing the state of the art in the a priori estimation of accuracy of protein structure prediction since 2006. The inclusion of model quality assessment category in CASP contributed to a rapid development of methods in this area. In the last experiment, 46 quality assessment groups tested their approaches to estimate the accuracy of protein models as a whole and/or on a per-residue basis. We assessed the performance of these methods predominantly on the basis of the correlation between the predicted and observed quality of the models on both global and local scales. The ability of the methods to identify the models closest to the best one, to differentiate between good and bad models, and to identify well modeled regions was also analyzed. Our evaluations demonstrate that even though global quality assessment methods seem to approach perfection point (weighted average per-target Pearson\\'s correlation coefficients are as high as 0.97 for the best groups), there is still room for improvement. First, all top-performing methods use consensus approaches to generate quality estimates, and this strategy has its own limitations. Second, the methods that are based on the analysis of individual models lag far behind clustering techniques and need a boost in performance. The methods for estimating per-residue accuracy of models are less accurate than global quality assessment methods, with an average weighted per-model correlation coefficient in the range of 0.63-0.72 for the best 10 groups.

  12. A model to evaluate quality and effectiveness of disease management.

    Science.gov (United States)

    Lemmens, K M M; Nieboer, A P; van Schayck, C P; Asin, J D; Huijsman, R

    2008-12-01

    Disease management has emerged as a new strategy to enhance quality of care for patients suffering from chronic conditions, and to control healthcare costs. So far, however, the effects of this strategy remain unclear. Although current models define the concept of disease management, they do not provide a systematic development or an explanatory theory of how disease management affects the outcomes of care. The objective of this paper is to present a framework for valid evaluation of disease-management initiatives. The evaluation model is built on two pillars of disease management: patient-related and professional-directed interventions. The effectiveness of these interventions is thought to be affected by the organisational design of the healthcare system. Disease management requires a multifaceted approach; hence disease-management programme evaluations should focus on the effects of multiple interventions, namely patient-related, professional-directed and organisational interventions. The framework has been built upon the conceptualisation of these disease-management interventions. Analysis of the underlying mechanisms of these interventions revealed that learning and behavioural theories support the core assumptions of disease management. The evaluation model can be used to identify the components of disease-management programmes and the mechanisms behind them, making valid comparison feasible. In addition, this model links the programme interventions to indicators that can be used to evaluate the disease-management programme. Consistent use of this framework will enable comparisons among disease-management programmes and outcomes in evaluation research.

  13. AQA - Air Quality model for Austria - Evaluation and Developments

    Science.gov (United States)

    Hirtl, M.; Krüger, B. C.; Baumann-Stanzer, K.; Skomorowski, P.

    2009-04-01

    The regional weather forecast model ALADIN of the Central Institute for Meteorology and Geodynamics (ZAMG) is used in combination with the chemical transport model CAMx (www.camx.com) to conduct forecasts of gaseous and particulate air pollution over Europe. The forecasts which are done in cooperation with the University of Natural Resources and Applied Life Sciences in Vienna (BOKU) are supported by the regional governments since 2005 with the main interest on the prediction of tropospheric ozone. The daily ozone forecasts are evaluated for the summer 2008 with the observations of about 150 air quality stations in Austria. In 2008 the emission-model SMOKE was integrated into the modelling system to calculate the biogenic emissions. The anthropogenic emissions are based on the newest EMEP data set as well as on regional inventories for the core domain. The performance of SMOKE is shown for a summer period in 2007. In the frame of the COST-action 728 „Enhancing mesoscale meteorological modelling capabilities for air pollution and dispersion applications", multi-model ensembles are used to conduct an international model evaluation. The model calculations of meteorological- and concentration fields are compared to measurements on the ensemble platform at the Joint Research Centre (JRC) in Ispra. The results for 2 episodes in 2006 show the performance of the different models as well as of the model ensemble.

  14. Dynamic evaluation of air quality models over European regions

    NARCIS (Netherlands)

    Thunis, P.; Pisoni, E.; Degraeuwe, B.; Kranenburg, R.; Schaap, M.; Clappier, A.

    2015-01-01

    Chemistry-transport models are increasingly used in Europe for estimating air quality or forecasting changes in pollution levels. But with this increased use of modeling arises the need of harmonizing the methodologies to determine the quality of air quality model applications. This is complex for p

  15. Evaluating NOx emission inventories for regulatory air quality modeling using satellite and air quality model data

    Science.gov (United States)

    Kemball-Cook, Susan; Yarwood, Greg; Johnson, Jeremiah; Dornblaser, Bright; Estes, Mark

    2015-09-01

    The purpose of this study was to assess the accuracy of NOx emissions in the Texas Commission on Environmental Quality's (TCEQ) State Implementation Plan (SIP) modeling inventories of the southeastern U.S. We used retrieved satellite tropospheric NO2 columns from the Ozone Monitoring Instrument (OMI) together with NO2 columns from the Comprehensive Air Quality Model with Extensions (CAMx) to make top-down NOx emissions estimates using the mass balance method. Two different top-down NOx emissions estimates were developed using the KNMI DOMINO v2.0 and NASA SP2 retrievals of OMI NO2 columns. Differences in the top-down NOx emissions estimates made with these two operational products derived from the same OMI radiance data were sufficiently large that they could not be used to constrain the TCEQ NOx emissions in the southeast. The fact that the two available operational NO2 column retrievals give such different top-down NOx emissions results is important because these retrievals are increasingly being used to diagnose air quality problems and to inform efforts to solve them. These results reflect the fact that NO2 column retrievals are a blend of measurements and modeled data and should be used with caution in analyses that will inform policy development. This study illustrates both benefits and challenges of using satellite NO2 data for air quality management applications. Comparison with OMI NO2 columns pointed the way toward improvements in the CAMx simulation of the upper troposphere, but further refinement of both regional air quality models and the NO2 column retrievals is needed before the mass balance and other emission inversion methods can be used to successfully constrain NOx emission inventories used in U.S. regulatory modeling.

  16. Attribute Mathematical Model for Comprehensive Index System' Quality Evaluation for Natural Science Academic Journals

    Institute of Scientific and Technical Information of China (English)

    YongLi; QunLi

    2004-01-01

    Journal evaluation is a compliated engineering system, how to evaluate academic journals more scientifically in scientific methods have becomes a problem of great concerns. This paper presents attribute mathematical model for comprehensive index system' quality evaluation for natural science academic journals, aiming to make comprehensive index system' quality evaluation for academic journals more objective and reasonable compared with other quantitative evaluation ways.

  17. Software Quality Evaluation Models Applicable in Health Information and Communications Technologies. A Review of the Literature.

    Science.gov (United States)

    Villamor Ordozgoiti, Alberto; Delgado Hito, Pilar; Guix Comellas, Eva María; Fernandez Sanchez, Carlos Manuel; Garcia Hernandez, Milagros; Lluch Canut, Teresa

    2016-01-01

    Information and Communications Technologies in healthcare has increased the need to consider quality criteria through standardised processes. The aim of this study was to analyse the software quality evaluation models applicable to healthcare from the perspective of ICT-purchasers. Through a systematic literature review with the keywords software, product, quality, evaluation and health, we selected and analysed 20 original research papers published from 2005-2016 in health science and technology databases. The results showed four main topics: non-ISO models, software quality evaluation models based on ISO/IEC standards, studies analysing software quality evaluation models, and studies analysing ISO standards for software quality evaluation. The models provide cost-efficiency criteria for specific software, and improve use outcomes. The ISO/IEC25000 standard is shown as the most suitable for evaluating the quality of ICTs for healthcare use from the perspective of institutional acquisition.

  18. Study on Nursing Clinical Teachers' Comprehensive Quality Evaluation Model on the Basis of Fuzzy Mathematics

    Directory of Open Access Journals (Sweden)

    Zhijuan Liu

    2013-04-01

    Full Text Available In this study, we study on the nursing clinical teachers' comprehensive quality evaluation model on the basis of fuzzy mathematics. First, it obtains the nursing clinical teachers' comprehensive quality evaluation index framework by making use of Delphi method. Then, it constructs the comprehensive quality evaluation hierarchy model by applying the analytic hierarchy process, to obtain the weight for each index, based on which to establish fuzzy comprehensive evaluation model, thus acquiring new method for nursing clinical teachers' comprehensive quality evaluation. Examples have proven the feasibility and effectiveness of this method.

  19. Evaluation of two ozone air quality modelling systems

    Directory of Open Access Journals (Sweden)

    S. Ortega

    2004-01-01

    Full Text Available The aim of this paper is to compare two different modelling systems and to evaluate their ability to simulate high values of ozone concentration in typical summer episodes which take place in the north of Spain near the metropolitan area of Barcelona. As the focus of the paper is the comparison of the two systems, we do not attempt to improve the agreement by adjusting the emission inventory or model parameters. The first model, or forecasting system, is made up of three modules. The first module is a mesoscale model (MASS. This provides the initial condition for the second module, which is a nonlocal boundary layer model based on the transilient turbulence scheme. The third module is a photochemical box model (OZIPR, which is applied in Eulerian and Lagrangian modes and receives suitable information from the two previous modules. The model forecast is evaluated against ground base stations during summer 2001. The second model is the MM5/UAM-V. This is a grid model designed to predict the hourly three-dimensional ozone concentration fields. The model is applied during an ozone episode that occurred between 21 and 23 June 2001. Our results reflect the good performance of the two modelling systems when they are used in a specific episode.

  20. Evaluation of a Digital Library by Means of Quality Function Deployment (QFD) and the Kano Model

    Science.gov (United States)

    Garibay, Cecilia; Gutierrez, Humberto; Figueroa, Arturo

    2010-01-01

    This paper proposes utilizing a combination of the Quality Function Deployment (QFD)-Kano model as a useful tool to evaluate service quality. The digital library of the University of Guadalajara (Mexico) is presented as a case study. Data to feed the QFD-Kano model was gathered by an online questionnaire that was made available to users on the…

  1. User satisfaction-based quality evaluation model and survey analysis of network information service

    Institute of Scientific and Technical Information of China (English)

    LEI; Xue; JIAO; Yuying

    2009-01-01

    On the basis of user satisfaction,authors made research hypotheses by learning from relevant e-service quality evaluation models.A questionnaire survey was then conducted on some content-based websites in terms of their convenience,information quality,personalization and site aesthetics,which may affect the overall satisfaction of users.Statistical analysis was also made to build a user satisfaction-based quality evaluation system of network information service.

  2. Parameter selection and model research on remote sensing evaluation for nearshore water quality

    Institute of Scientific and Technical Information of China (English)

    LEI Guibin; ZHANG Ying; PAN Delu; WANG Difeng; FU Dongyang

    2016-01-01

    Using remote sensing technology for water quality evaluation is an inevitable trend in marine environmental monitoring. However, fewer categories of water quality parameters can be monitored by remote sensing technology than the 35 specified in GB3097-1997 Marine Water Quality Standard. Therefore, we considered which parameters must be selected by remote sensing and how to model for water quality evaluation using the finite parameters. In this paper, focused on Leizhou Peninsula nearshore waters, we found N, P, COD, PH and DO to be the dominant parameters of water quality by analyzing measured data. Then, mathematical statistics was used to determine that the relationship among the five parameters was COD>DO>P>N>pH. Finally, five-parameter, four-parameter and three-parameter water quality evaluation models were established and compared. The results showed that COD, DO, P and N were the necessary parameters for remote sensing evaluation of the Leizhou Peninsula nearshore water quality, and the optimal comprehensive water quality evaluation model was the four-parameter model. This work may serve as a reference for monitoring the quality of other marine waters by remote sensing.

  3. Evaluating the Quality of the Learning Outcome in Healthcare Sector: The Expero4care Model

    Science.gov (United States)

    Cervai, Sara; Polo, Federica

    2015-01-01

    Purpose: This paper aims to present the Expero4care model. Considering the growing need for a training evaluation model that does not simply fix processes, the Expero4care model represents the first attempt of a "quality model" dedicated to the learning outcomes of healthcare trainings. Design/Methodology/Approach: Created as development…

  4. A study on the sound quality evaluation model of mechanical air-cleaners

    DEFF Research Database (Denmark)

    Ih, Jeong-Guon; Jang, Su-Won; Jeong, Cheol-Ho;

    2009-01-01

    of an immediate cleaning of pollutants. In this context, it is important to evaluate and design the air-cleaner noise to satisfy such contradictory expectations from the customers. In this study, a model for evaluating the sound quality of air-cleaners of mechanical type was developed based on objective...... perceptive descriptor. Annoyance and performance indices of air-cleaners were modeled from the subjective responses of the juries and the measured sound quality metrics: loudness, sharpness, roughness, and fluctuation strength. The multiple regression method was employed to generate sound quality evaluation...... models. Using the developed indices, sound quality of the measured data was evaluated and compared with the subjective data. The difference between predicted and tested scores was less than 0.5 points. © 2009 by ASME....

  5. Quality modelling

    NARCIS (Netherlands)

    Tijskens, L.M.M.

    2003-01-01

    For modelling product behaviour, with respect to quality for users and consumers, its essential to have at least a fundamental notion what quality really is, and which product properties determine the quality assigned by the consumer to a product. In other words: what is allowed and what is to be

  6. A merged model of quality improvement and evaluation: maximizing return on investment.

    Science.gov (United States)

    Woodhouse, Lynn D; Toal, Russ; Nguyen, Trang; Keene, DeAnna; Gunn, Laura; Kellum, Andrea; Nelson, Gary; Charles, Simone; Tedders, Stuart; Williams, Natalie; Livingood, William C

    2013-11-01

    Quality improvement (QI) and evaluation are frequently considered to be alternative approaches for monitoring and assessing program implementation and impact. The emphasis on third-party evaluation, particularly associated with summative evaluation, and the grounding of evaluation in the social and behavioral science contrast with an emphasis on the integration of QI process within programs or organizations and its origins in management science and industrial engineering. Working with a major philanthropic organization in Georgia, we illustrate how a QI model is integrated with evaluation for five asthma prevention and control sites serving poor and underserved communities in rural and urban Georgia. A primary foundation of this merged model of QI and evaluation is a refocusing of the evaluation from an intimidating report card summative evaluation by external evaluators to an internally engaged program focus on developmental evaluation. The benefits of the merged model to both QI and evaluation are discussed. The use of evaluation based logic models can help anchor a QI program in evidence-based practice and provide linkage between process and outputs with the longer term distal outcomes. Merging the QI approach with evaluation has major advantages, particularly related to enhancing the funder's return on investment. We illustrate how a Plan-Do-Study-Act model of QI can (a) be integrated with evaluation based logic models, (b) help refocus emphasis from summative to developmental evaluation, (c) enhance program ownership and engagement in evaluation activities, and (d) increase the role of evaluators in providing technical assistance and support.

  7. Quality Evaluation of Conceptual Level Object Multidimensional Data Model

    CERN Document Server

    Chakrabarty, Supriya

    2011-01-01

    The advancement of technology facilitates explosive growth of mobile usage in the last decade. Numerous applications have been developed to support its usage. However, gap in technology exists in obtaining correct and trusted values for evaluation indexes of the precise amount of usage. The claims of loss in revenue by the service providers could be more due to unexpected behaviour of the hardware. A similar mistrust is often observed in the users of the services. A trustworthy subscription scheme is in demand for consumers whereas revenue needs to be assured of the service providers. Multiple Authorizations by Multiple Owners (MAMO) has already been introduced as a technology to build trust in the third party billing system. In this paper, MAMO is extended to ensure trustworthiness of the parameters for subscription. Along with call transaction data are reconciled to assure the proper revenue generation.

  8. Quality Assurance in E-Learning: PDPP Evaluation Model and Its Application

    Science.gov (United States)

    Zhang, Weiyuan; Cheng, Y. L.

    2012-01-01

    E-learning has become an increasingly important teaching and learning mode in educational institutions and corporate training. The evaluation of e-learning, however, is essential for the quality assurance of e-learning courses. This paper constructs a four-phase evaluation model for e-learning courses, which includes planning, development,…

  9. An Analytical Hierarchy Process Model for the Evaluation of College Experimental Teaching Quality

    Science.gov (United States)

    Yin, Qingli

    2013-01-01

    Taking into account the characteristics of college experimental teaching, through investigaton and analysis, evaluation indices and an Analytical Hierarchy Process (AHP) model of experimental teaching quality have been established following the analytical hierarchy process method, and the evaluation indices have been given reasonable weights. An…

  10. Towards Evaluating the Quality of a Spreadsheet: The Case of the Analytical Spreadsheet Model

    CERN Document Server

    Grossman, Thomas A; Sander, Johncharles

    2011-01-01

    We consider the challenge of creating guidelines to evaluate the quality of a spreadsheet model. We suggest four principles. First, state the domain-the spreadsheets to which the guidelines apply. Second, distinguish between the process by which a spreadsheet is constructed from the resulting spreadsheet artifact. Third, guidelines should be written in terms of the artifact, independent of the process. Fourth, the meaning of "quality" must be defined. We illustrate these principles with an example. We define the domain of "analytical spreadsheet models", which are used in business, finance, engineering, and science. We propose for discussion a framework and terminology for evaluating the quality of analytical spreadsheet models. This framework categorizes and generalizes the findings of previous work on the more narrow domain of financial spreadsheet models. We suggest that the ultimate goal is a set of guidelines for an evaluator, and a checklist for a developer.

  11. Self-evaluation of quality in education of adults – The model for self-evaluation: POKI

    Directory of Open Access Journals (Sweden)

    Tanja Možina

    2007-12-01

    Full Text Available The article is the first in the line of articles dealing with the issues of quality in adult education and with the POKI model (Offering quality education to adults, developed by Slovenian Institute for Adult Education and being in use since 2001. The model defines self-evaluation as basic method for quality assessment but is based in its core on the total quality management (TQM principle. The model has been rather well accepted within the network of organisations, implementing educational programmes for adults. The five-year era  of the  model  implementation  gives us time to reflect and rethink in depth about it and its efficiency (results. In the first article the starting points, serving as guidelines for the beginning of the POKI model, have been introduced, same as its basic conceptual characteristics including the process of the model implementation in an educational organisation.

  12. Multicriteria Evaluation of Product Quality

    OpenAIRE

    Pabedinskaitė, Arnoldina; Vitkauskas, Romualdas

    2009-01-01

    Product quality assessment is a complex task. The aim of this paper is to analyse the concepts of quality, different quality management models and their interaction with knowledge management models and the presented criteria system for assessing product quality. Moreover, multicriteria methods and their applicability to assessment of the product quality are analysed. On the basis of group of the product quality criteria and using the multicriteria evaluation methods, the quality of the produc...

  13. FANN-Based Surface Water Quality Evaluation Model and Its Application in the Shaoguan Area

    Institute of Scientific and Technical Information of China (English)

    YANG Meini; LI Dingfang; YANG Jinbo; XIONG Wei

    2007-01-01

    A fuzzy neural network model is proposed to evaluate water quality. The model contains two parts: first, fuzzy mathematics theory is used to standardize the samples; second, the RBF neural network and the BP neural network are used to train the standardized samples. The proposed model was applied to assess the water quality of 16 sections in 9 rivers in the Shaoguan area in 2005. The evaluation result was compared with that of the RBF neural network method and the reported results in the Shaoguan area in 2005. It indicated that the performance of the proposed fuzzy neural network model is practically feasible in the application of water quality assessment and its operation is simple.

  14. Evaluation Model for Scientific Quality Based on Rough Sets and Its Empirical Study

    Institute of Scientific and Technical Information of China (English)

    LIU Dun; HU Pei; JIANG Chao-zhe; LIU Li

    2007-01-01

    By analyzing the questionnaires recollected from 74 different government departments in Chengdu, China, an evaluation model for scientific quality of civil servants was developed with the rough set theory. In the empirical study, a series of important rules were given to help to check and forecast the degree of the scientific quality of civil servants by using the reduction algorithm, and the total accuracy of prediction was 93.2%.

  15. An attribute recognition model based on entropy weight for evaluating the quality of groundwater sources

    Institute of Scientific and Technical Information of China (English)

    CHEN Suo-zhong; WANG Xiao-jing; ZHAO Xiu-jun

    2008-01-01

    In our study, entropy weight coefficients, based on Shannon entropy, were determined for an attribute recognition model to model the quality of groundwater sources. The model follows the theory previously proposed by Chen Q S. In the model, firstly, the author establishes the attribute space matrix and determines the weight based on Shannon entropy theory; secondly, calculates attribute measure; thirdly, evaluates that with confidence criterion and score criterion; finally, an application example is given. The results show that the water quality of the groundwater sources for the city comes up to the grade II or III standard. There is no pollution that obviously exceeds the standard and the water can meet people's needs .The results from an evaluation of this model are in basic agreement with the observed situation and with a set pair analysis (SPA) model.

  16. Evaluation of water quality at Fort Monmouth, New Jersey, using the epanet model. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Walski, T.M.; Draus, S.J.

    1995-09-01

    Under the Facilities Engineering Applications Program, the U.S. Army Corps of Engineers wanted to test the capability of the EPANET computer model for evaluating water quality in water distribution systems. Fort Monmouth, New Jersey, has experienced low chlorine residuals levels. The EPANET model was calibrated using hydrant flow tests to predict chlorine die-off in the distribution system at the Fort. The model was then used to compare the effects of flushing and chlorine addition to improve water quality. Because of the high chlorine die-off rates in warm weather, it appears that chlorine addition is the only way to significantly improve chlorine residuals during summer months.

  17. Quality Assurance in E-Learning: PDPP Evaluation Model and its Application

    Directory of Open Access Journals (Sweden)

    Weiyuan Zhang

    2012-06-01

    Full Text Available E-learning has become an increasingly important teaching and learning mode in educational institutions and corporate training. The evaluation of e-learning, however, is essential for the quality assurance of e-learning courses. This paper constructs a four-phase evaluation model for e-learning courses, which includes planning, development, process, and product evaluation, called the PDPP evaluation model. Planning evaluation includes market demand, feasibility, target student group, course objectives, and finance. Development evaluation includes instructional design, course material design, course Web site design, flexibility, student-student interaction, teacher/tutor support, technical support, and assessment. Process evaluation includes technical support, Web site utilization, learning interaction, learning evaluation, learning support, and flexibility. Product evaluation includes student satisfaction, teaching effectiveness, learning effectiveness, and sustainability. Using the PDPP model as a research framework, a purely e-learning course on Research Methods in Distance Education, developed by the School of Professional and Continuing Education at the University of Hong Kong (HKU SPACE and jointly offered with the School of Distance Learning for Medical Education of Peking University (SDLME, PKU, was used as a case study. Sixty students from mainland China, Hong Kong, Macau, and Malaysia were recruited for this course. According to summative evaluation through a student e-learning experience survey, the majority of students were very satisfied/satisfied on all e-learning dimensions of this course. The majority of students thought that the learning effectiveness of this course was equivalent, even better, than face-to-face learning because of cross-border collaborative learning, student-centred learning, sufficient learning support, and learning flexibility. This study shows that a high quality of teaching and learning might be assured by

  18. Assessment of the assessment: Evaluation of the model quality estimates in CASP10

    KAUST Repository

    Kryshtafovych, Andriy

    2013-08-31

    The article presents an assessment of the ability of the thirty-seven model quality assessment (MQA) methods participating in CASP10 to provide an a priori estimation of the quality of structural models, and of the 67 tertiary structure prediction groups to provide confidence estimates for their predicted coordinates. The assessment of MQA predictors is based on the methods used in previous CASPs, such as correlation between the predicted and observed quality of the models (both at the global and local levels), accuracy of methods in distinguishing between good and bad models as well as good and bad regions within them, and ability to identify the best models in the decoy sets. Several numerical evaluations were used in our analysis for the first time, such as comparison of global and local quality predictors with reference (baseline) predictors and a ROC analysis of the predictors\\' ability to differentiate between the well and poorly modeled regions. For the evaluation of the reliability of self-assessment of the coordinate errors, we used the correlation between the predicted and observed deviations of the coordinates and a ROC analysis of correctly identified errors in the models. A modified two-stage procedure for testing MQA methods in CASP10 whereby a small number of models spanning the whole range of model accuracy was released first followed by the release of a larger number of models of more uniform quality, allowed a more thorough analysis of abilities and inabilities of different types of methods. Clustering methods were shown to have an advantage over the single- and quasi-single- model methods on the larger datasets. At the same time, the evaluation revealed that the size of the dataset has smaller influence on the global quality assessment scores (for both clustering and nonclustering methods), than its diversity. Narrowing the quality range of the assessed models caused significant decrease in accuracy of ranking for global quality predictors but

  19. A fuzzy MCDM model with objective and subjective weights for evaluating service quality in hotel industries

    Science.gov (United States)

    Zoraghi, Nima; Amiri, Maghsoud; Talebi, Golnaz; Zowghi, Mahdi

    2013-12-01

    This paper presents a fuzzy multi-criteria decision-making (FMCDM) model by integrating both subjective and objective weights for ranking and evaluating the service quality in hotels. The objective method selects weights of criteria through mathematical calculation, while the subjective method uses judgments of decision makers. In this paper, we use a combination of weights obtained by both approaches in evaluating service quality in hotel industries. A real case study that considered ranking five hotels is illustrated. Examples are shown to indicate capabilities of the proposed method.

  20. [Real-time detection of quality of Chinese materia medica: strategy of NIR model evaluation].

    Science.gov (United States)

    Wu, Zhi-sheng; Shi, Xin-yuan; Xu, Bing; Dai, Xing-xing; Qiao, Yan-jiang

    2015-07-01

    The definition of critical quality attributes of Chinese materia medica ( CMM) was put forward based on the top-level design concept. Nowadays, coupled with the development of rapid analytical science, rapid assessment of critical quality attributes of CMM was firstly carried out, which was the secondary discipline branch of CMM. Taking near infrared (NIR) spectroscopy as an example, which is a rapid analytical technology in pharmaceutical process over the past decade, systematic review is the chemometric parameters in NIR model evaluation. According to the characteristics of complexity of CMM and trace components analysis, a multi-source information fusion strategy of NIR model was developed for assessment of critical quality attributes of CMM. The strategy has provided guideline for NIR reliable analysis in critical quality attributes of CMM.

  1. Study on quality evaluation model in multi-station assembly processes

    Institute of Scientific and Technical Information of China (English)

    Wen Zejun; Liu Deshun; Yang Shuyi

    2008-01-01

    Based on features of dimension variation propagation in multi-station assembly processes,a new quality evalu-ation model of assembly processes is established.Firstly,the error source of multi-station assembly system is analyzed,the relationship of dimension variation propagation in multi-station assembly processes is studied and the state equation for variation propagation is constructed too.Then,the feature parameters which influence variation propagation and ac-cumulation in multi-station assembly processes are found to evaluate quality characteristic of the assembly system.Through the derivation of equation on dimension variation propagation,station coefficient matrices which axe combined and conversed to determine the max eigenvalue are educed.The max eigenvalue is multiplied by the weight coefficient to establish the quality evaluation model in multi-station assembly processes.Furthermore,assembly variation indexes are proposed to judge of the assembly technology process.Finally,through the practical example,the application of the model and assembly variation indexes are presented.

  2. Influences on Evaluation Quality

    Science.gov (United States)

    Cooksy, Leslie J.; Mark, Melvin M.

    2012-01-01

    Attention to evaluation quality is commonplace, even if sometimes implicit. Drawing on her 2010 Presidential Address to the American Evaluation Association, Leslie Cooksy suggests that evaluation quality depends, at least in part, on the intersection of three factors: (a) evaluator competency, (b) aspects of the evaluation environment or context,…

  3. Air quality modeling for accountability research: Operational, dynamic, and diagnostic evaluation

    Science.gov (United States)

    Henneman, Lucas R. F.; Liu, Cong; Hu, Yongtao; Mulholland, James A.; Russell, Armistead G.

    2017-10-01

    Photochemical grid models play a central role in air quality regulatory frameworks, including in air pollution accountability research, which seeks to demonstrate the extent to which regulations causally impacted emissions, air quality, and public health. There is a need, however, to develop and demonstrate appropriate practices for model application and evaluation in an accountability framework. We employ a combination of traditional and novel evaluation techniques to assess four years (2001-02, 2011-12) of simulated pollutant concentrations across a decade of major emissions reductions using the Community Multiscale Air Quality (CMAQ) model. We have grouped our assessments in three categories: Operational evaluation investigates how well CMAQ captures absolute concentrations; dynamic evaluation investigates how well CMAQ captures changes in concentrations across the decade of changing emissions; diagnostic evaluation investigates how CMAQ attributes variability in concentrations and sensitivities to emissions between meteorology and emissions, and how well this attribution compares to empirical statistical models. In this application, CMAQ captures O3 and PM2.5 concentrations and change over the decade in the Eastern United States similarly to past CMAQ applications and in line with model evaluation guidance; however, some PM2.5 species-EC, OC, and sulfate in particular-exhibit high biases in various months. CMAQ-simulated PM2.5 has a high bias in winter months and low bias in the summer, mainly due to a high bias in OC during the cold months and low bias in OC and sulfate during the summer. Simulated O3 and PM2.5 changes across the decade have normalized mean bias of less than 2.5% and 17%, respectively. Detailed comparisons suggest biased EC emissions, negative wintertime SO42- sensitivities to mobile source emissions, and incomplete capture of OC chemistry in the summer and winter. Photochemical grid model-simulated O3 and PM2.5 responses to emissions and

  4. Integrated Evaluation Model for Eco- Environmental Quality in Mountainous Region Based on Remote Sensing and GIS

    Institute of Scientific and Technical Information of China (English)

    LI Ainong; WANG Angsheng; HE Xiaorong; FENG Wenlan; ZHOU Wancun

    2006-01-01

    Based on Remote Sensing (RS), Geographic Information System (GIS), and combining Principal Component Analysis, this paper designed a numerical integrated evaluation model for mountain eco-environment on the base of grid scale. Using this model, we evaluated the mountain eco-environmental quality in a case study area-the upper reaches of Minjiang River, and achieved a good result, which accorded well with the real condition. The study indicates that, the integrated evaluation model is suitable for multi-layer spatial factor computation, effectively lowing man's subjective influence in the evaluation process; treating the whole river basin as a system, the model shows full respect to the circulation of material and energy, synthetically embodies the determining impact of such natural condition as water-heat and landform, as well as human interference in natural eco-system; the evaluation result not only clearly presents mountainous vertical distribution features of input factors, but also provides a scientific and reliable thought for quantitatively evaluating mountain eco-environment.

  5. Evaluating potential benefits of burning lower quality fuel oils using the oil burn optimization model

    Energy Technology Data Exchange (ETDEWEB)

    Babilonia, P.

    1995-09-01

    As a result of a 1987 New York State Public Service Commission Audit of Niagara Mohawk`s Fuel Supply operations, Niagara Mohawk (NMPC) became interested in analyzing the plant performance impacts of burning fuels of differing qualities at its various generating stations. Black & Veatch (B&V) had previously developed a computer model for EPRI that analyzed coal quality impacts (i.e., Coal Quality Impact Model). As a result of B&V`s work, NMPC contracted with B&V to first develop custom-designed software for its coal stations (Coal Burn Optimization Model (CBOM)). Subsequently, B&V was retained to develop a similar designed software for its oil stations, Oswego and Albany Steam Stations. The Oil Burn Optimization Model (OBOM) was, therefore, developed. OBOM was designed to be used to evaluate residual fuel oil supply options by predicting their fuel-related plant operating and maintenance costs. Fuel oil-related costs can also be compared to natural gas-related costs. Costs are estimated by predicting performance of various plant equipment. Predictions focus on combustion calculations, material flows, auxiliary power, boiler efficiency, precipitator and fan performance, fuel pumping and preheating requirements, and corrosion considerations. Total costs at the busbar attributed to fuel are calculated from these predictions. OBOM is a PC-based system operating under MS-DOS. The model produces hard copy results for quick comparison of fuels and their potential effects on plant operating and maintenance costs.

  6. NEW MODEL FOR EVALUATION OF THE PERCEIVED IMAGE QUALITY BY SMARTPHONE USERS

    Directory of Open Access Journals (Sweden)

    Pinchas ZOREA

    2015-12-01

    Full Text Available Mobile devices, like smartphones and tablet computers, became an essential part in our life. Image quality assessment plays an important role in various image processing applications. A great deal of effort has been made in recent years to develop “objective” image quality metrics that correlate with perceived quality measurement. Unfortunately, only limi-ted success has been achieved. In this paper, I provide a quantitative method to evaluate perceived image quality of color images on mobile displays. Five image quality factors - Vividness, Brightness, Clarity, Sharpness and Contrast were chosen to represent perceived image quality. Image quality assessment models are constructed based on results of human visual experiments compared with image analysis by SW tool. Values of parameters of image quality assessment models are estimated based on results from human visual experiments, and a new model is proposed based on the human visual tests and computer image analysis.MODEL NOU DE EVALUARE A CALITĂŢII IMAGINII PERCEPUTE DE CĂTRE UTILIZATORII DE SMARTPHONEDispozitivele mobile (ca exemplu – smartphone şi tablete au devenit o parte esenţială din viaţa noastră. Evaluarea calităţii imaginii joacă un rol important în diverse aplicaţii de procesare a imaginii. O mare parte din efort a fost făcut în ultimii ani pentru a dezvolta metrici „obiective” de evaluare a calităţii imaginii, care corelează cu măsurarea calităţii percepute. Spre regret, doar un succes limitat a fost atins în acest domeniu. În lucrare este prezentată o metodă cantitativă de evaluare a calităţii imaginii percepute cu referire la imaginile color pe ecranele dispozitivelor mobile. Cinci factori de calitate a imaginii – Intensitate, Luminozitate, Claritate, Rezoluţie şi Contrast – au fost aleşi pentru a reprezenta calitatea imaginii percepute. Modelele de evaluare a calităţii imaginii sunt construite pe baza rezultatelor experimentelor

  7. Evaluation of the operational Air-Quality forecast model for Austria ALARO-CAMx

    Science.gov (United States)

    Flandorfer, Claudia; Hirtl, Marcus

    2016-04-01

    The Air-Quality model for Austria (AQA) is operated at ZAMG by order of the regional governments of Vienna, Lower Austria, and Burgenland since 2005. The emphasis of this modeling system is on predicting ozone peaks in the North-east Austrian flatlands. The modeling system is currently a combination of the meteorological model ALARO and the photochemical dispersion model CAMx. Two modeling domains are used with the highest resolution (5 km) in the alpine region. Various extensions with external data sources have been conducted in the past to improve the daily forecasts of the model, e.g. data assimilation of O3- and PM10-observations from the Austrian measurement network (with optimum interpolation method technique), MACC-II boundary conditions; combination of high resolved emission inventories for Austria with TNO and EMEP data. The biogenic emissions are provided by the SMOKE model. The model runs 2 times per day for a period of 48 hours. ZAMG provides daily forecasts of O3, PM10 and NO2 to the regional governments of Austria. The evaluation of these forecasts is done for January to September 2015, with the main focus on the summer peaks of ozone. The measurements of the Air-Quality stations are compared with the punctual forecasts at the sites of the stations and the area forecasts for every province of Austria. Several heat waves occurred between June and September 2015 (new temperature records for St. Pölten and Linz). During these periods the information threshold for ozone has been exceeded 19 times, mostly in the Eastern regions of Austria. Values above the alert threshold have been measured at some stations in Lower Austria and Vienna at the beginning of July. For the evaluation, the results for the periods with exceedances in Eastern Austria will be discussed in detail.

  8. Psychoacoustic Evaluation Model on the Luxury of Sound Quality in Vehicle Interior Noise

    Directory of Open Access Journals (Sweden)

    Fang Li

    2013-05-01

    Full Text Available This paper studied the comprehensive evaluation index of sensory luxury of Sound Quality in Vehicle interior noise. The relationship between it and psychoacoustic parameters under different conditions was studied. Four types of vehicle real-time noises were recorded at several running speeds and later were subjectively evaluated in the testing room by semantic subdivided method. According to the subjective test and evaluation, the psychoacoustic objective quantificational model was built using correlation analysis and multi-dimensional linear regression analysis. The results indicated that: the luxury of vehicle interior noise showed good correlation with loudness and sharpness. The luxury increased as loudness or sharpness decreased, but it decreased as speed increased.

  9. Developing a model of quality management methods and evaluating their effects on business performance

    NARCIS (Netherlands)

    Zhang, ZH

    2000-01-01

    From an extensive review of the total quality management (TQM) literature, a model of quality management methods (QMMs) was developed. The model has 83 QMMs which are categorized by the 11 TQM elements they primarily aim to improve. Ten manufacturing companies which were renowned for quality managem

  10. Developing a model of quality management methods and evaluating their effects on business performance

    NARCIS (Netherlands)

    Zhang, ZH

    2000-01-01

    From an extensive review of the total quality management (TQM) literature, a model of quality management methods (QMMs) was developed. The model has 83 QMMs which are categorized by the 11 TQM elements they primarily aim to improve. Ten manufacturing companies which were renowned for quality managem

  11. Developing a model of quality management methods and evaluating their effects on business performance

    NARCIS (Netherlands)

    Zhang, ZH

    From an extensive review of the total quality management (TQM) literature, a model of quality management methods (QMMs) was developed. The model has 83 QMMs which are categorized by the 11 TQM elements they primarily aim to improve. Ten manufacturing companies which were renowned for quality

  12. Monitoring Air Quality over China: Evaluation of the modeling system of the PANDA project

    Science.gov (United States)

    Bouarar, Idir; Katinka Petersen, Anna; Brasseur, Guy; Granier, Claire; Xie, Ying; Wang, Xuemei; Fan, Qi; Wang, Lili

    2015-04-01

    Air pollution has become a pressing problem in Asia and specifically in China due to rapid increase in anthropogenic emissions related to growth of China's economic activity and increasing demand for energy in the past decade. Observed levels of particulate matter and ozone regularly exceed World Health Organization (WHO) air quality guidelines in many parts of the country leading to increased risk of respiratory illnesses and other health problems. The EU-funded project PANDA aims to establish a team of European and Chinese scientists to monitor air pollution over China and elaborate air quality indicators in support of European and Chinese policies. PANDA combines state-of-the-art air pollution modeling with space and surface observations of chemical species to improve methods for monitoring air quality. The modeling system of the PANDA project follows a downscaling approach: global models such as MOZART and MACC system provide initial and boundary conditions to regional WRF-Chem and EMEP simulations over East Asia. WRF-Chem simulations at higher resolution (e.g. 20km) are then performed over a smaller domain covering East China and initial and boundary conditions from this run are used to perform simulations at a finer resolution (e.g. 5km) over specific megacities like Shanghai. Here we present results of model simulations for January and July 2010 performed during the first year of the project. We show an intercomparison of the global (MACC, EMEP) and regional (WRF-Chem) simulations and a comprehensive evaluation with satellite measurements (NO2, CO) and in-situ data (O3, CO, NOx, PM10 and PM2.5) at several surface stations. Using the WRF-Chem model, we demonstrate that model performance is influenced not only by the resolution (e.g. 60km, 20km) but also the emission inventories used (MACCity, HTAPv2), their resolution and diurnal variation, and the choice of initial and boundary conditions (e.g. MOZART, MACC analysis).

  13. A comparison between latent variable models for evaluating the quality perceived from the hospital service users

    Directory of Open Access Journals (Sweden)

    Silvia Cagnone

    2007-10-01

    Full Text Available During the last years, costumer satisfaction analysis is becoming more and more important in evaluating the service quality of the sanitary system. Typically the construct ‘satisfaction’ is assumed to be a not observable variable, that is a latent variable. In this paper we illustrate and compare two different methods for analyzing latent variable models. The first one is the structural equation models with Lisrel, the second one is the generalized linear latent variable models. The comparison is performed through an application of the satisfaction analysis to a real data set referred to the patients of a hospital in Bologna. The results highlights the methodological and the applicative similarity and dissimilarity between the two methods.

  14. A predictive model for turfgrass color and quality evaluation using deep learning and UAV imageries

    Science.gov (United States)

    Phan, Claude; Raheja, Amar; Bhandari, Subodh; Green, Robert L.; Do, Dat

    2017-05-01

    Millions of Americans come into contact with turfgrass on a daily basis. Often undervalued and seen as visual support stimulus for a larger entity, millions of acres of turfgrass can be found on residential lawns (which also provides an area for recreation), commercial landscape, parks, athletic fields, and golf courses. Besides these uses, turfgrass provides many functional benefits to the environment, such as reducing soil erosion, cooling its surrounding area, and soil carbon sequestration. However, rapidly expanding uses of turfgrass have also raised alarm for natural resources conservation and environmental quality, the largest impact being water consumption. This paper presents a machine learning approach that can assist growers and researchers in determining the overall quality and color rating of turfgrass, thereby assisting in turfgrass management including optimized irrigation water scheduling. Tools from Google and NVIDIA enable models to be trained using deep learning techniques on personal computers or on small form factor processors that can be used aboard small unmanned aerial vehicles (UAVs). The typical evaluation process is a long, laborious process, which is subjective by nature, and thus often exposed to criticism and concern. A computational approach to quality and color assessment will provide faster, accurate, and more consistent ratings, which in turn will help increase irrigation water use efficiency. The overall goal of the ongoing research is to use deep learning techniques and UAV imageries for the turfgrass quality and color assessment and help all the stakeholders to optimize water conservation.

  15. Evaluation of the Community Multiscale Air Quality model version 5.1

    Science.gov (United States)

    The Community Multiscale Air Quality model is a state-of-the-science air quality model that simulates the emission, transport and fate of numerous air pollutants, including ozone and particulate matter. The Atmospheric Modeling and Analysis Division (AMAD) of the U.S. Environment...

  16. [Evaluating the quality of Angelica sinensis with fuzzy matter-element model based on variation coefficient weight].

    Science.gov (United States)

    Li, Yang; Xia, Peng-Fei; Ma, Xiao; Fan, Qin; Zhao, Lei; Wang, Ya-Li; Liu, Xiong

    2013-08-01

    To investigate the utilization of fuzzy matter-element model in evaluating the quality of Angelica sinensis. The quality of Angelica sinensis from different habitats was evaluated by determining six main compositions contained in the samples with fuzzy matter-element model based on variation coefficient weight. Angelica sinensis collected from 22 hatitats were divided into three ranges based on the values of approach degrees. Fuzzy matter-element model based on variation coefficient weight can judge the quality of Angelica sinensis objectively and feasibly.

  17. Application of Water Quality Model of Jordan River to Evaluate Climate Change Effects on Eutrophication

    Science.gov (United States)

    Van Grouw, B.

    2016-12-01

    The Jordan River is a 51 mile long freshwater stream in Utah that provides drinking water to more than 50% of Utah's population. The various point and nonpoint sources introduce an excess of nutrients into the river. This excess induces eutrophication that results in an inhabitable environment for aquatic life is expected to be exacerbated due to climate change. Adaptive measures must be evaluated based on predictions of climate variation impacts on eutrophication and ecosystem processes in the Jordan River. A Water Quality Assessment Simulation Program (WASP) model was created to analyze the data results acquired from a Total Maximum Daily Load (TMDL) study conducted on the Jordan River. Eutrophication is modeled based on levels of phosphates and nitrates from point and nonpoint sources, temperature, and solar radiation. It will simulate the growth of phytoplankton and periphyton in the river. This model will be applied to assess how water quality in the Jordan River is affected by variations in timing and intensity of spring snowmelt and runoff during drought in the valley and the resulting effects on eutrophication in the river.

  18. Evaluation of gas-particle partitioning in a regional air quality model for organic pollutants

    Science.gov (United States)

    Efstathiou, Christos I.; Matejovičová, Jana; Bieser, Johannes; Lammel, Gerhard

    2016-12-01

    Persistent organic pollutants (POPs) are of considerable concern due to their well-recognized toxicity and their potential to bioaccumulate and engage in long-range transport. These compounds are semi-volatile and, therefore, create a partition between vapour and condensed phases in the atmosphere, while both phases can undergo chemical reactions. This work describes the extension of the Community Multiscale Air Quality (CMAQ) modelling system to POPs with a focus on establishing an adaptable framework that accounts for gaseous chemistry, heterogeneous reactions, and gas-particle partitioning (GPP). The effect of GPP is assessed by implementing a set of independent parameterizations within the CMAQ aerosol module, including the Junge-Pankow (JP) adsorption model, the Harner-Bidleman (HB) organic matter (OM) absorption model, and the dual Dachs-Eisenreich (DE) black carbon (BC) adsorption and OM absorption model. Use of these descriptors in a modified version of CMAQ for benzo[a]pyrene (BaP) results in different fate and transport patterns as demonstrated by regional-scale simulations performed for a European domain during 2006. The dual DE model predicted 24.1 % higher average domain concentrations compared to the HB model, which was in turn predicting 119.2 % higher levels compared to the baseline JP model. Evaluation with measurements from the European Monitoring and Evaluation Programme (EMEP) reveals the capability of the more extensive DE model to better capture the ambient levels and seasonal behaviour of BaP. It is found that the heterogeneous reaction of BaP with O3 may decrease its atmospheric lifetime by 25.2 % (domain and annual average) and near-ground concentrations by 18.8 %. Marginally better model performance was found for one of the six EMEP stations (Košetice) when heterogeneous BaP reactivity was included. Further analysis shows that, for the rest of the EMEP locations, the model continues to underestimate BaP levels, an observation that can be

  19. Seasonal climate and air quality simulations for the northeastern US – Part 1: Model evaluation

    Directory of Open Access Journals (Sweden)

    H. Mao

    2009-09-01

    Full Text Available Regional climate and air quality simulations were conducted for summers 2001–2005 in the eastern US and subjected to extensive evaluation using various ground and airborne measurements. Climate evaluation focused on transport by comparing modeled dominant map types with ones from reanalysis. Reasonable agreement was found for their frequency of occurrence and distinctness of circulation patterns. The two most frequent map types from reanalysis were the Bermuda High (22% and passage of a Canadian cold frontal over the northeastern US (20%. The model captured their frequency of occurrence at 25% and 18% respectively. The simulated five average distributions of daily 1-h ozone (O3 daily maxima using the Community Multiscale Air Quality (CMAQ modeling system reproduced salient features in observations. This suggests that the ability of the regional climate model to depict transport processes accurately is critical for reasonable simulations of surface O3. Comparison of mean bias, root mean square error, and index of agreement for CMAQ summer surface 8-h O3 daily maxima and observations showed −0.6±14 nmol/mol, 14 nmol/mol, and 71% respectively. CMAQ performed best in moderately polluted conditions and less satisfactorily in highly polluted ones. This highlights the common problem of overestimating/underestimating lower/higher modeled O3 levels. Diagnostic analysis suggested that significant overestimation of inland nighttime low O3 mixing ratios may be attributed to underestimates of nitric oxide (NO emissions at night. The absence of the second daily peak in simulations for the Appledore Island marine site possibly resulted from coarse grid resolution misrepresentation of land surface type. Comparison with shipboard measurements suggested that CMAQ has an inherent problem of underpredicting O3 levels in continental outflow. Modeled O3 vertical profiles exhibited a

  20. An empirical model of water quality for use in rapid management strategy evaluation in Southeast Queensland, Australia.

    Science.gov (United States)

    de la Mare, William; Ellis, Nick; Pascual, Ricardo; Tickell, Sharon

    2012-04-01

    Simulation models have been widely adopted in fisheries for management strategy evaluation (MSE). However, in catchment management of water quality, MSE is hampered by the complexity of both decision space and the hydrological process models. Empirical models based on monitoring data provide a feasible alternative to process models; they run much faster and, by conditioning on data, they can simulate realistic responses to management actions. Using 10 years of water quality indicators from Queensland, Australia, we built an empirical model suitable for rapid MSE that reproduces the water quality variables' mean and covariance structure, adjusts the expected indicators through local management effects, and propagates effects downstream by capturing inter-site regression relationships. Empirical models enable managers to search the space of possible strategies using rapid assessment. They provide not only realistic responses in water quality indicators but also variability in those indicators, allowing managers to assess strategies in an uncertain world. Copyright © 2012 Elsevier Ltd. All rights reserved.

  1. Food Quality Safety Evaluation Model in College Canteens Based on the Improved AHP-taking Bengbu College as an Example

    Directory of Open Access Journals (Sweden)

    Huaxi Chen

    2013-04-01

    Full Text Available Based on the results of investigation and the suggestion from the experts, the factors influencing the college canteen food quality and safety are found and assessment system for university cafeteria food quality and safety is constructed. With the improved Analytic Hierarchy Process (AHP to the various indexes for the empowerment and the fuzzy comprehensive evaluation method, the university canteen food quality and safety evaluation method is created. Then based on the example from Bengbu College, the solution of the model is provided, thus it is concluded that the process management factors, food factors and environmental factors, make the biggest influence on the canteen food quality and safety. Meanwhile, the extent of the influence of the second level factor on the canteen food quality and safety is identified and further it should be paid a greater attention to the several factors in order to improve the status of the food quality and safety condition.

  2. Notification: Evaluation of EPA’s Approval Process for Air Quality Dispersion Models

    Science.gov (United States)

    Project #OPE-FY17-0016, June 5, 2017. The EPA OIG plans to begin preliminary research to assess the effectiveness of EPA's process for reviewing and approving air quality dispersion models it recommends for use.

  3. The Development of Evaluation Model for Internal Quality Assurance System of Dramatic Arts College of Bunditpattanasilpa Institute

    Science.gov (United States)

    Sinthukhot, Kittisak; Srihamongkol, Yannapat; Luanganggoon, Nuchwana; Suwannoi, Paisan

    2013-01-01

    The research purpose was to develop an evaluation model for the internal quality assurance system of the dramatic arts College of Bunditpattanasilpa Institute. The Research and Development method was used as research methodology which was divided into three phases; "developing the model and its guideline", "trying out the actual…

  4. EVALUATION OF PERCEIVED QUALITY OF THE WEBSITE OF AN ONLINE BOOKSTORE: AN EMPIRICAL APPLICATION OF THE BARNES AND VIDGEN MODEL

    Directory of Open Access Journals (Sweden)

    Ueliton da Costa Leonidio

    2011-05-01

    Full Text Available This paper’s objective is to evaluate the perceived quality of the Website of an online bookstore using the Barnes and Vidgen Model. Implemented over the Internet, this empirical research collected data on the perceived quality of the Website, used to sell products and online services. The questionnaire used to gather the data was answered by a convenience sample of 213 respondents. The importance of quality attributes and the dimension of perceived quality were investigated. The results indicate that the three dimensions named Reliability, Usability and Information were the most noticeable.

  5. Study on an Air Quality Evaluation Model for Beijing City Under Haze-Fog Pollution Based on New Ambient Air Quality Standards

    Science.gov (United States)

    Li, Li; Liu, Dong-Jun

    2014-01-01

    Since 2012, China has been facing haze-fog weather conditions, and haze-fog pollution and PM2.5 have become hot topics. It is very necessary to evaluate and analyze the ecological status of the air environment of China, which is of great significance for environmental protection measures. In this study the current situation of haze-fog pollution in China was analyzed first, and the new Ambient Air Quality Standards were introduced. For the issue of air quality evaluation, a comprehensive evaluation model based on an entropy weighting method and nearest neighbor method was developed. The entropy weighting method was used to determine the weights of indicators, and the nearest neighbor method was utilized to evaluate the air quality levels. Then the comprehensive evaluation model was applied into the practical evaluation problems of air quality in Beijing to analyze the haze-fog pollution. Two simulation experiments were implemented in this study. One experiment included the indicator of PM2.5 and was carried out based on the new Ambient Air Quality Standards (GB 3095-2012); the other experiment excluded PM2.5 and was carried out based on the old Ambient Air Quality Standards (GB 3095-1996). Their results were compared, and the simulation results showed that PM2.5 was an important indicator for air quality and the evaluation results of the new Air Quality Standards were more scientific than the old ones. The haze-fog pollution situation in Beijing City was also analyzed based on these results, and the corresponding management measures were suggested. PMID:25170682

  6. Study on an air quality evaluation model for Beijing City under haze-fog pollution based on new ambient air quality standards.

    Science.gov (United States)

    Li, Li; Liu, Dong-Jun

    2014-08-28

    Since 2012, China has been facing haze-fog weather conditions, and haze-fog pollution and PM2.5 have become hot topics. It is very necessary to evaluate and analyze the ecological status of the air environment of China, which is of great significance for environmental protection measures. In this study the current situation of haze-fog pollution in China was analyzed first, and the new Ambient Air Quality Standards were introduced. For the issue of air quality evaluation, a comprehensive evaluation model based on an entropy weighting method and nearest neighbor method was developed. The entropy weighting method was used to determine the weights of indicators, and the nearest neighbor method was utilized to evaluate the air quality levels. Then the comprehensive evaluation model was applied into the practical evaluation problems of air quality in Beijing to analyze the haze-fog pollution. Two simulation experiments were implemented in this study. One experiment included the indicator of PM2.5 and was carried out based on the new Ambient Air Quality Standards (GB 3095-2012); the other experiment excluded PM2.5 and was carried out based on the old Ambient Air Quality Standards (GB 3095-1996). Their results were compared, and the simulation results showed that PM2.5 was an important indicator for air quality and the evaluation results of the new Air Quality Standards were more scientific than the old ones. The haze-fog pollution situation in Beijing City was also analyzed based on these results, and the corresponding management measures were suggested.

  7. Application of analytic hierarchy process-grey target theory systematic model in comprehensive evaluation of water environmental quality.

    Science.gov (United States)

    Wu, Jun; Tian, Xiaogang; Tang, Ya; Zhao, Yujie; Hu, Yandi; Fang, Zili

    2010-07-01

    Comprehensive evaluation of the water environment for effective water quality management is complicated by a considerable number of factors and uncertainties. It is difficult to combine micro-evaluation with the macro-evaluation process. To effectively eliminate the subjective errors of the traditional analytic hierarchy process (AHP), a new modeling approach--the analytic hierarchy process and grey target theory (AHP-GTT) systematic model--is presented in this study to evaluate water quality in a certain watershed. A case study of applying the AHP-GTT systematic model to the evaluation and analysis of the water environment was conducted in the Yibin section of the Yangtze River, China. The micro-evaluation is based on defining the weights of indices of the water quality (IWQ) of each water cross-section, while the macro-evaluation is based on calculating the comprehensive indices of water environmental quality and analyzing the tendency of the water environment of each cross-section. The results indicated that the Baixi and Shuidongmen sections are seriously polluted areas, with the tendencies of becoming worse. Also, the key IWQs of these two cross-sections are 5-day biochemical oxygen demand and chemical oxygen demand of permanganate, respectively.

  8. Application of an Integrated Model with MCDM and IPA to Evaluate the Service Quality of Transshipment Port

    Directory of Open Access Journals (Sweden)

    Chien-Chang Chou

    2013-01-01

    Full Text Available It is often to solve complex decision-making problems in the marine transportation environment, such as the evaluation of service quality and the location choice of ports. In this paper, an integrated model with multiple-criteria decision making (MCDM and importance-performance analysis (IPA is presented and then is applied to solve the problem of service quality evaluation of transshipment port. The MCDM approach can be used to deal with both quantitative data and qualitative ratings simultaneously. The IPA approach can be applied to realize the shortcomings of service quality of ports and rank the ranking of strategies for improving service quality of transshipment port. Finally, some useful suggestions for improving the service quality of ports are given in the paper.

  9. Application of Structural Equation Modeling to Evaluate Service Quality of Sportswear Retailing

    Institute of Scientific and Technical Information of China (English)

    LI Min; GU Tong-yu; YANG Yi-xiong; HONG Tao-min

    2008-01-01

    Structural Equation Modeling (SEM) used widely in sociology, economics and psychology is adopted. Based on data obtained from marketing research, and using statistical analysis software SPSS11.0 and LISREL8.7, Theory of Five Dimensions of service quality is proved to be suitable in sportswear retailing in China. It analyzes the relationship among five dimensions and puts them in order of importance as to service quality in sportswear retailing. Advices are given for sportswear retail companies to improve their service quality and enhance customer loyalty.

  10. Evaluating University-Industry Collaboration: The European Foundation of Quality Management Excellence Model-Based Evaluation of University-Industry Collaboration

    Science.gov (United States)

    Kauppila, Osmo; Mursula, Anu; Harkonen, Janne; Kujala, Jaakko

    2015-01-01

    The growth in university-industry collaboration has resulted in an increasing demand for methods to evaluate it. This paper presents one way to evaluate an organization's collaborative activities based on the European Foundation of Quality Management excellence model. Success factors of collaboration are derived from literature and compared…

  11. Comparison of the Mortality Probability Admission Model III, National Quality Forum, and Acute Physiology and Chronic Health Evaluation IV hospital mortality models: implications for national benchmarking*.

    Science.gov (United States)

    Kramer, Andrew A; Higgins, Thomas L; Zimmerman, Jack E

    2014-03-01

    To examine the accuracy of the original Mortality Probability Admission Model III, ICU Outcomes Model/National Quality Forum modification of Mortality Probability Admission Model III, and Acute Physiology and Chronic Health Evaluation IVa models for comparing observed and risk-adjusted hospital mortality predictions. Retrospective paired analyses of day 1 hospital mortality predictions using three prognostic models. Fifty-five ICUs at 38 U.S. hospitals from January 2008 to December 2012. Among 174,001 intensive care admissions, 109,926 met model inclusion criteria and 55,304 had data for mortality prediction using all three models. None. We compared patient exclusions and the discrimination, calibration, and accuracy for each model. Acute Physiology and Chronic Health Evaluation IVa excluded 10.7% of all patients, ICU Outcomes Model/National Quality Forum 20.1%, and Mortality Probability Admission Model III 24.1%. Discrimination of Acute Physiology and Chronic Health Evaluation IVa was superior with area under receiver operating curve (0.88) compared with Mortality Probability Admission Model III (0.81) and ICU Outcomes Model/National Quality Forum (0.80). Acute Physiology and Chronic Health Evaluation IVa was better calibrated (lowest Hosmer-Lemeshow statistic). The accuracy of Acute Physiology and Chronic Health Evaluation IVa was superior (adjusted Brier score = 31.0%) to that for Mortality Probability Admission Model III (16.1%) and ICU Outcomes Model/National Quality Forum (17.8%). Compared with observed mortality, Acute Physiology and Chronic Health Evaluation IVa overpredicted mortality by 1.5% and Mortality Probability Admission Model III by 3.1%; ICU Outcomes Model/National Quality Forum underpredicted mortality by 1.2%. Calibration curves showed that Acute Physiology and Chronic Health Evaluation performed well over the entire risk range, unlike the Mortality Probability Admission Model and ICU Outcomes Model/National Quality Forum models. Acute

  12. Evaluation of global water quality - the potential of a data- and model-driven analysis

    Science.gov (United States)

    Bärlund, Ilona; Flörke, Martina; Alcamo, Joseph; Völker, Jeanette; Malsy, Marcus; Kaus, Andrew; Reder, Klara; Büttner, Olaf; Katterfeld, Christiane; Dietrich, Désirée; Borchardt, Dietrich

    2016-04-01

    The ongoing socio-economic development presents a new challenge for water quality worldwide, especially in developing and emerging countries. It is estimated that due to population growth and the extension of water supply networks, the amount of waste water will rise sharply. This can lead to an increased risk of surface water quality degradation, if the wastewater is not sufficiently treated. This development has impacts on ecosystems and human health, as well as food security. The United Nations Member States have adopted targets for sustainable development. They include, inter alia, sustainable protection of water quality and sustainable use of water resources. To achieve these goals, appropriate monitoring strategies and the development of indicators for water quality are required. Within the pre-study for a 'World Water Quality Assessment' (WWQA) led by United Nations Environment Programme (UNEP), a methodology for assessing water quality, taking into account the above-mentioned objectives has been developed. The novelty of this methodology is the linked model- and data-driven approach. The focus is on parameters reflecting the key water quality issues, such as increased waste water pollution, salinization or eutrophication. The results from the pre-study show, for example, that already about one seventh of all watercourses in Latin America, Africa and Asia show high organic pollution. This is of central importance for inland fisheries and associated food security. In addition, it could be demonstrated that global water quality databases have large gaps. These must be closed in the future in order to obtain an overall picture of global water quality and to target measures more efficiently. The aim of this presentation is to introduce the methodology developed within the WWQA pre-study and to show selected examples of application in Latin America, Africa and Asia.

  13. EVALUATION OF THE QUALITY AND SELF PURIFICATION POTENTIAL OF TAJAN RIVER USING QUAL2E MODEL

    Directory of Open Access Journals (Sweden)

    N. Mehrdadi, M. Ghobadi, T. Nasrabadi, H. Hoveidi

    2006-07-01

    Full Text Available Tajan River is among significant rivers of Caspian Sea water basin. Pollution sources that threaten the quality of water in Tajan River may be classified in to two categories namely point and non-point sources. Major pollutants of latter category are Mazandaran wood and pulp, Paksar dairy products and Sari Antibiotic production factories, as well as 600-dastgah residential area. On the other hand, non-point sources whose waste is considered as a distributed load consist of Sari municipal wastewater and agriculture-related pollutants that are drained towards the river. In order to model the quality of river flow, Qual2E model is taken in to consideration. Considering TDS, the river quality is completely acceptable in cold seasons. However, in spring and summer the value of this parameter is increased and this causes some restrictions in the use of this water for irrigation of specific sensitive crops. Agricultural activities and consequent irrigated waters are the major causes of higher reported TDS values in warm seasons. Current status of DO is completely acceptable and this is highly related to the relative high value of width on depth ratio along the river. BOD and COD locate in a fairly poor condition. Quality deterioration is more noticeable in cold seasons. Higher rate of precipitation and consequent greater runoff generation towards the river basin justify the relative increase of mentioned parameters in fall and winter. Generally, non-point pollution sources are more contributed in deterioration of Tajan River water quality.

  14. Diagnostic Evaluation of Ozone Production and Horizontal Transport in a Regional Photochemical Air Quality Modeling System

    Science.gov (United States)

    A diagnostic model evaluation effort has been performed to focus on photochemical ozone formation and the horizontal transport process since they strongly impact the temporal evolution and spatial distribution of ozone (O3) within the lower troposphere. Results from th...

  15. Evaluating Emissions Inventory Improvements Using Observations and the CMAQ Model: Impacts on Air Quality Attainment Strategies

    Science.gov (United States)

    Ring, A.; Anderson, D. C.; He, H.; Vinciguerra, T.; Goldberg, D. L.; Ehrman, S.; Dickerson, R. R.; Salawitch, R. J.; Canty, T.

    2016-12-01

    The Environmental Protection Agency (EPA) monitors and regulates surface ozone, which has a primary attainment standard of 70 ppb over an 8-hour average. In this analysis, we investigate the representation of emissions sectors, such as large commercial marine vessels, within the Community Multiscale Air Quality (CMAQ) model, an EPA approved regulatory air quality model used by state agencies and research institutions to develop ozone attainment strategies. We compare model output for June, July, and August 2011 with surface ozone data from the EPA Air Quality Sites (AQS) in order to examine various model scenarios and improve the representation of emissions within CMAQ. Satellite data from the Ozone Monitoring Instrument (OMI) for summer 2011 are used to further investigate how well CMAQ is able to capture the non-linear production of surface ozone. Additionally, we test how improvements to the model framework influence the effectiveness of a future attainment strategy for June, July and August 2018. Further work will use geostationary satellite data to develop a top-down emissions inventory that can capture the diurnal variation of important ozone precursors.

  16. ARAMIS a regional air quality model for air pollution management: evaluation and validation

    Energy Technology Data Exchange (ETDEWEB)

    Solar, M. R.; Gamez, P.; Olid, M.

    2015-07-01

    The aim of this research was to better understand the dynamics of air pollutants and to forecast the air quality over regional areas in order to develop emission abatement strategies for air pollution and adverse health effects. To accomplish this objective, we developed and applied a high resolution Eulerian system named ARAMIS (A Regional Air Quality Modelling Integrated System) over the north-east of Spain (Catalonia), where several pollutants exceed threshold values for the protection of human health. The results indicate that the model reproduced reasonably well observed concentrations, as statistical values fell within Environmental Protection Agency (EPA) recommendations and European (EU) regulations. Nevertheless, some hourly O{sub 3} exceedances in summer and hourly peaks of NO{sub 2} in winter were underestimated. Concerning PM10 concentrations less accurate model levels were obtained with a moderate trend towards underestimation during the day. (Author)

  17. ARAMIS a regional air quality model for air pollution management: evaluation and validation

    Energy Technology Data Exchange (ETDEWEB)

    Soler, M.R.; Gamez, P.; Olid, M.

    2015-07-01

    The aim of this research was to better understand the dynamics of air pollutants and to forecast the air quality over regional areas in order to develop emission abatement strategies for air pollution and adverse health effects. To accomplish this objective, we developed and applied a high resolution Eulerian system named ARAMIS (A Regional Air Quality Modelling Integrated System) over the north-east of Spain (Catalonia), where several pollutants exceed threshold values for the protection of human health. The results indicate that the model reproduced reasonably well observed concentrations, as statistical values fell within Environmental Protection Agency (EPA) recommendations and European (EU) regulations. Nevertheless, some hourly O3 exceedances in summer and hourly peaks of NO2 in winter were underestimated. Concerning PM10 concentrations less accurate model levels were obtained with a moderate trend towards underestimation during the day. (Author)

  18. Regionalized PM2.5 Community Multiscale Air Quality model performance evaluation across a continuous spatiotemporal domain

    Science.gov (United States)

    Reyes, Jeanette M.; Xu, Yadong; Vizuete, William; Serre, Marc L.

    2017-01-01

    The regulatory Community Multiscale Air Quality (CMAQ) model is a means to understanding the sources, concentrations and regulatory attainment of air pollutants within a model's domain. Substantial resources are allocated to the evaluation of model performance. The Regionalized Air quality Model Performance (RAMP) method introduced here explores novel ways of visualizing and evaluating CMAQ model performance and errors for daily Particulate Matter ≤ 2.5 μm (PM2.5) concentrations across the continental United States. The RAMP method performs a non-homogenous, non-linear, non-homoscedastic model performance evaluation at each CMAQ grid. This work demonstrates that CMAQ model performance, for a well-documented 2001 regulatory episode, is non-homogeneous across space/time. The RAMP correction of systematic errors outperforms other model evaluation methods as demonstrated by a 22.1% reduction in Mean Square Error compared to a constant domain wide correction. The RAMP method is able to accurately reproduce simulated performance with a correlation of r = 76.1%. Most of the error coming from CMAQ is random error with only a minority of error being systematic. Areas of high systematic error are collocated with areas of high random error, implying both error types originate from similar sources. Therefore, addressing underlying causes of systematic error will have the added benefit of also addressing underlying causes of random error.

  19. Grid-based water quality simulation at catchment scale: Nitrogen model development and evaluation

    Science.gov (United States)

    Yang, Xiaoqiang; Jomaa, Seifeddine; Rode, Michael

    2017-04-01

    Stream water quality has been changed significantly during last few decades due to changes in human impacts. Accurate and flexible water quality models, which can properly reflect the heterogeneity and long term temporal dynamic of catchment functioning, are still needed. To this end, a new grid-based catchment water quality model was developed based on the mesoscale Hydrological Model (mHM) and the HYdrological Prediction of Environment (HYPE) model. The model structure and parameterization scheme were flexibly designed depending on the spatial heterogeneity of study sites and their specific requirements. Based on that, more detailed spatial information can be provided. Moreover, three main improvements on Nitrate sub-model were implemented: i) nitrate transport processes were conducted in physically connected river networks, allowing time-series point-source inputs added in the exact location of sewage treatment plants; ii) additional retention storage of deep groundwater was included for long term nitrate-N simulation; iii) special design for better taking into account crop rotation was implemented. Those new features can extend the model capability and facilitate the understanding of catchment mechanisms and analysis of future scenarios and measures. The newly developed model was fully verified in the Selke catchment (456 km2), central Germany. Long term discharge and water quality data have been collected at three nested gauging stations (1997-2015). The station Meisdorf, above where 72% of area is occupied by forest, represents the discharge and nutrient exports from forest area. Agricultural land dominates the lower part of the catchment (almost 96% of in-between area of the Meisdorf and the outlet station Hausneindorf) with considerable urban areas. Due to the relatively large number of model parameters, sensitivity analysis was firstly conducted. Subsequently, sensitive parameters were calibrated using stepwise and multi-variable approaches, respectively

  20. Evaluating results of the Welfare Quality multi-criteria evaluation model for classification of dairy cattle welfare at the herd level

    NARCIS (Netherlands)

    Vries, de M.; Bokkers, E.A.M.; Schaik, van G.; Botreau, R.; Engel, B.; Dijkstra, T.; Boer, de I.J.M.

    2013-01-01

    The Welfare Quality multi-criteria evaluation (WQ-ME) model aggregates scores of single welfare measures into an overall assessment for the level of animal welfare in dairy herds. It assigns herds to 4 welfare classes: unacceptable, acceptable, enhanced, or excellent. The aim of this study was to de

  1. Tools for evaluating Veterinary Services: an external auditing model for the quality assurance process.

    Science.gov (United States)

    Melo, E Correa

    2003-08-01

    The author describes the reasons why evaluation processes should be applied to the Veterinary Services of Member Countries, either for trade in animals and animal products and by-products between two countries, or for establishing essential measures to improve the Veterinary Service concerned. The author also describes the basic elements involved in conducting an evaluation process, including the instruments for doing so. These basic elements centre on the following:--designing a model, or desirable image, against which a comparison can be made--establishing a list of processes to be analysed and defining the qualitative and quantitative mechanisms for this analysis--establishing a multidisciplinary evaluation team and developing a process for standardising the evaluation criteria.

  2. Surface water quality evaluation and modeling of Ghataprabha River, Karnataka, India.

    Science.gov (United States)

    Purandara, B K; Varadarajan, N; Venkatesh, B; Choubey, V K

    2012-03-01

    Belgaum city is a developmental hub of Karnataka State in India. In the recent time, the Government of Karnataka has planned to set up many processing industries in the vicinity of Belgaum to meet the growing needs of the region and to ease out the pressure on the already existing industrial hubs in Karnataka State. Ghataprabha, a tributary of river Krishna, is one of the major sources of water supply to Belgaum city and adjoining areas. During the last decade, a lot of anthropogenic activities such as unplanned agricultural activities are ongoing in many parts of the catchment. Therefore, people of Belgaum are more concerned about the quality of water in Ghataprabha river. Considering the significance of water quality of the river, surface water samples were collected during Pre- and Post-monsoon season from selected locations and analyzed for both physical and chemical constituents in the laboratory. The results indicate that the chemical parameters such as bicarbonates, sulphates, chlorides, sodium, potassium, calcium and magnesium are within the permissible limits. QUAL2E model was applied to assess the impact of point and non-point sources of pollution on the river water quality. Results show that the water quality conditions are highly acceptable all along the river stretch. Further, the variation of DO-BOD(5) with river discharge was also estimated. Also, a significant variations in DO (decrease in DO) with the increase in river flow was observed. However, at the downstream end, considerable improvement in DO was noticed which is attributed to the damming effect of the reservoir.

  3. Applications of Satellite Remote Sensing Products to Enhance and Evaluate the AIRPACT Regional Air Quality Modeling System

    Science.gov (United States)

    Herron-Thorpe, F. L.; Mount, G. H.; Emmons, L. K.; Lamb, B. K.; Jaffe, D. A.; Wigder, N. L.; Chung, S. H.; Zhang, R.; Woelfle, M.; Vaughan, J. K.; Leung, F. T.

    2013-12-01

    The WSU AIRPACT air quality modeling system for the Pacific Northwest forecasts hourly levels of aerosols and atmospheric trace gases for use in determining potential health and ecosystem impacts by air quality managers. AIRPACT uses the WRF/SMOKE/CMAQ modeling framework, derives dynamic boundary conditions from MOZART-4 forecast simulations with assimilated MOPITT CO, and uses the BlueSky framework to derive fire emissions. A suite of surface measurements and satellite-based remote sensing data products across the AIRPACT domain are used to evaluate and improve model performance. Specific investigations include anthropogenic emissions, wildfire simulations, and the effects of long-range transport on surface ozone. In this work we synthesize results for multiple comparisons of AIRPACT with satellite products such as IASI ammonia, AIRS carbon monoxide, MODIS AOD, OMI tropospheric ozone and nitrogen dioxide, and MISR plume height. Features and benefits of the newest version of AIRPACT's web-interface are also presented.

  4. Evaluation of observation-fused regional air quality model results for population air pollution exposure estimation.

    Science.gov (United States)

    Chen, Gang; Li, Jingyi; Ying, Qi; Sherman, Seth; Perkins, Neil; Rajeshwari, Sundaram; Mendola, Pauline

    2014-07-01

    In this study, Community Multiscale Air Quality (CMAQ) model was applied to predict ambient gaseous and particulate concentrations during 2001 to 2010 in 15 hospital referral regions (HRRs) using a 36-km horizontal resolution domain. An inverse distance weighting based method was applied to produce exposure estimates based on observation-fused regional pollutant concentration fields using the differences between observations and predictions at grid cells where air quality monitors were located. Although the raw CMAQ model is capable of producing satisfying results for O3 and PM2.5 based on EPA guidelines, using the observation data fusing technique to correct CMAQ predictions leads to significant improvement of model performance for all gaseous and particulate pollutants. Regional average concentrations were calculated using five different methods: 1) inverse distance weighting of observation data alone, 2) raw CMAQ results, 3) observation-fused CMAQ results, 4) population-averaged raw CMAQ results and 5) population-averaged fused CMAQ results. It shows that while O3 (as well as NOx) monitoring networks in the HRRs are dense enough to provide consistent regional average exposure estimation based on monitoring data alone, PM2.5 observation sites (as well as monitors for CO, SO2, PM10 and PM2.5 components) are usually sparse and the difference between the average concentrations estimated by the inverse distance interpolated observations, raw CMAQ and fused CMAQ results can be significantly different. Population-weighted average should be used to account for spatial variation in pollutant concentration and population density. Using raw CMAQ results or observations alone might lead to significant biases in health outcome analyses.

  5. Evaluation of Observation-Fused Regional Air Quality Model Results for Population Air Pollution Exposure Estimation

    Science.gov (United States)

    Chen, Gang; Li, Jingyi; Ying, Qi; Sherman, Seth; Perkins, Neil; Rajeshwari, Sundaram; Mendola, Pauline

    2014-01-01

    In this study, Community Multiscale Air Quality (CMAQ) model was applied to predict ambient gaseous and particulate concentrations during 2001 to 2010 in 15 hospital referral regions (HRRs) using a 36-km horizontal resolution domain. An inverse distance weighting based method was applied to produce exposure estimates based on observation-fused regional pollutant concentration fields using the differences between observations and predictions at grid cells where air quality monitors were located. Although the raw CMAQ model is capable of producing satisfying results for O3 and PM2.5 based on EPA guidelines, using the observation data fusing technique to correct CMAQ predictions leads to significant improvement of model performance for all gaseous and particulate pollutants. Regional average concentrations were calculated using five different methods: 1) inverse distance weighting of observation data alone, 2) raw CMAQ results, 3) observation-fused CMAQ results, 4) population-averaged raw CMAQ results and 5) population-averaged fused CMAQ results. It shows that while O3 (as well as NOx) monitoring networks in the HRR regions are dense enough to provide consistent regional average exposure estimation based on monitoring data alone, PM2.5 observation sites (as well as monitors for CO, SO2, PM10 and PM2.5 components) are usually sparse and the difference between the average concentrations estimated by the inverse distance interpolated observations, raw CMAQ and fused CMAQ results can be significantly different. Population-weighted average should be used to account spatial variation in pollutant concentration and population density. Using raw CMAQ results or observations alone might lead to significant biases in health outcome analyses. PMID:24747248

  6. High-resolution modeling and evaluation of ozone air quality of Osaka using an MM5-CMAQ system

    Institute of Scientific and Technical Information of China (English)

    SHRESTHA Kundan Lal; KONDO Akira; KAGA Akikazu; INOUE Yoshio

    2009-01-01

    High-resolution modeling approach is increasingly being considered as a necessary step for improving the monitoring and predictions of regional air quality.This is especially true for highly urbanized region with complex terrain and land-use.This study uses Community Multiscale Air Quality (CMAQ) model coupled with MM5 mesoscale model for a comprehensive analysis to assess the suitability of such high-resolution modeling system in predicting ozone air quality in the complex terrains of Osaka,Japan.The 1-km and 3-km grid domains were nested inside a 9-km domain and the domain with 1-km grid covered the Osaka region.High-resolution Grid Point Value-Mesoscale Model μgPV-MSM) data were used after suitable validation.The simulated ozone concentrations were validated and evaluated using statistical metrics using performance criteria set for ozone.Daily maxima of ozone were found better simulated by the 1-km grid domain than the coarser 9-km and 3-km domains,with the maximum improvement in the mean absolute gross error about 3 ppbv.In addition,1-km grid results fared better than other grids at most of the observation stations that showed noticeable differences in gross error as well as correlation.These results amply justify the use of the integrated high-resolution MM5-CMAQ modeling system in the highly urbanized region,such as the Osaka region,which has complex terrain and land-use.

  7. Description and evaluation of the Community Multiscale Air Quality (CMAQ) modeling system version 5.1

    Science.gov (United States)

    Wyat Appel, K.; Napelenok, Sergey L.; Foley, Kristen M.; Pye, Havala O. T.; Hogrefe, Christian; Luecken, Deborah J.; Bash, Jesse O.; Roselle, Shawn J.; Pleim, Jonathan E.; Foroutan, Hosein; Hutzell, William T.; Pouliot, George A.; Sarwar, Golam; Fahey, Kathleen M.; Gantt, Brett; Gilliam, Robert C.; Heath, Nicholas K.; Kang, Daiwen; Mathur, Rohit; Schwede, Donna B.; Spero, Tanya L.; Wong, David C.; Young, Jeffrey O.

    2017-04-01

    The Community Multiscale Air Quality (CMAQ) model is a comprehensive multipollutant air quality modeling system developed and maintained by the US Environmental Protection Agency's (EPA) Office of Research and Development (ORD). Recently, version 5.1 of the CMAQ model (v5.1) was released to the public, incorporating a large number of science updates and extended capabilities over the previous release version of the model (v5.0.2). These updates include the following: improvements in the meteorological calculations in both CMAQ and the Weather Research and Forecast (WRF) model used to provide meteorological fields to CMAQ, updates to the gas and aerosol chemistry, revisions to the calculations of clouds and photolysis, and improvements to the dry and wet deposition in the model. Sensitivity simulations isolating several of the major updates to the modeling system show that changes to the meteorological calculations result in enhanced afternoon and early evening mixing in the model, periods when the model historically underestimates mixing. This enhanced mixing results in higher ozone (O3) mixing ratios on average due to reduced NO titration, and lower fine particulate matter (PM2. 5) concentrations due to greater dilution of primary pollutants (e.g., elemental and organic carbon). Updates to the clouds and photolysis calculations greatly improve consistency between the WRF and CMAQ models and result in generally higher O3 mixing ratios, primarily due to reduced cloudiness and attenuation of photolysis in the model. Updates to the aerosol chemistry result in higher secondary organic aerosol (SOA) concentrations in the summer, thereby reducing summertime PM2. 5 bias (PM2. 5 is typically underestimated by CMAQ in the summer), while updates to the gas chemistry result in slightly higher O3 and PM2. 5 on average in January and July. Overall, the seasonal variation in simulated PM2. 5 generally improves in CMAQv5.1 (when considering all model updates), as simulated PM2. 5

  8. Quality Evaluation of Mobile Game: Miftah Alfasaha

    Directory of Open Access Journals (Sweden)

    Ghada Alhuhud

    2016-01-01

    Full Text Available Due to evolution of digital games towards mobile platforms, a large exposure to mobile games is nowadays recorded. This is because of the availability of the cell phone with individuals anytime anywhere. Hence, a vital role of game quality assessment is raised. This is for the purpose of serving as a guide for developing healthy games. Accordingly, the mobile games would help in boosting the educational entertainment, healthy diets control, and behavioral sciences studies and research. This paper presents quality assurance and quality models for ISO based educational game. In this paper, an ISO quality model is presented and quality application behavioral impact measures are justified to evaluate the development quality of Miftah Alfasaha game. The quality model and proposed quality assessment plan are tested through a CodePro Analytix tool and six sigma evaluations.

  9. Evaluation of a regional air-quality model with bidirectional NH3 exchange coupled to an agroecosystem model

    Directory of Open Access Journals (Sweden)

    J. O. Bash

    2013-03-01

    Full Text Available Atmospheric ammonia (NH3 is the primary atmospheric base and an important precursor for inorganic particulate matter and when deposited NH3 contributes to surface water eutrophication, soil acidification and decline in species biodiversity. Flux measurements indicate that the air–surface exchange of NH3 is bidirectional. However, the effects of bidirectional exchange, soil biogeochemistry and human activity are not parameterized in air quality models. The US Environmental Protection Agency's (EPA Community Multiscale Air-Quality (CMAQ model with bidirectional NH3 exchange has been coupled with the United States Department of Agriculture's (USDA Environmental Policy Integrated Climate (EPIC agroecosystem model. The coupled CMAQ-EPIC model relies on EPIC fertilization timing, rate and composition while CMAQ models the soil ammonium (NH4+ pool by conserving the ammonium mass due to fertilization, evasion, deposition, and nitrification processes. This mechanistically coupled modeling system reduced the biases and error in NHx (NH3 + NH4+ wet deposition and in ambient aerosol concentrations in an annual 2002 Continental US (CONUS domain simulation when compared to a 2002 annual simulation of CMAQ without bidirectional exchange. Fertilizer emissions estimated in CMAQ 5.0 with bidirectional exchange exhibits markedly different seasonal dynamics than the US EPA's National Emissions Inventory (NEI, with lower emissions in the spring and fall and higher emissions in July.

  10. Evaluation of a regional air-quality model with bidirectional NH3 exchange coupled to an agroecosystem model

    Science.gov (United States)

    Bash, J. O.; Cooter, E. J.; Dennis, R. L.; Walker, J. T.; Pleim, J. E.

    2013-03-01

    Atmospheric ammonia (NH3) is the primary atmospheric base and an important precursor for inorganic particulate matter and when deposited NH3 contributes to surface water eutrophication, soil acidification and decline in species biodiversity. Flux measurements indicate that the air-surface exchange of NH3 is bidirectional. However, the effects of bidirectional exchange, soil biogeochemistry and human activity are not parameterized in air quality models. The US Environmental Protection Agency's (EPA) Community Multiscale Air-Quality (CMAQ) model with bidirectional NH3 exchange has been coupled with the United States Department of Agriculture's (USDA) Environmental Policy Integrated Climate (EPIC) agroecosystem model. The coupled CMAQ-EPIC model relies on EPIC fertilization timing, rate and composition while CMAQ models the soil ammonium (NH4+) pool by conserving the ammonium mass due to fertilization, evasion, deposition, and nitrification processes. This mechanistically coupled modeling system reduced the biases and error in NHx (NH3 + NH4+) wet deposition and in ambient aerosol concentrations in an annual 2002 Continental US (CONUS) domain simulation when compared to a 2002 annual simulation of CMAQ without bidirectional exchange. Fertilizer emissions estimated in CMAQ 5.0 with bidirectional exchange exhibits markedly different seasonal dynamics than the US EPA's National Emissions Inventory (NEI), with lower emissions in the spring and fall and higher emissions in July.

  11. Optimal changes in the prepress process: a model for evaluation of state and direction of productivity and quality improvements

    Science.gov (United States)

    Kihlberg, Henrik; Lindgren, Mats

    1998-09-01

    The demands changes with the customers marketplace which makes it crucial for prepress companies of today and those of tomorrow to be able to change their services. The production tools are becoming more standardized and similar through out the industry. Intelligent tools are developed at a rapid pace which results in possibilities to automate these processes. Key success factors of today and tomorrow are the ability to change and understand the customers' market. The market demands shorter delivery times and lower costs. The total number of printed editions are decreasing while each edition contains an increased numbers of pages and images. The customers requires higher quality with the ability to control and predict the end result. Case studies, interviews and workshops have been carried out at commercial printing companies, prepress houses, image bureau's, advertising agencies and digital photographers in Sweden. A major part of the research focus on the digital image process at eleven companies in the graphic arts industry, all of which have prepress. The analysis has resulted in the thorough knowledge of both the production process and the parameters to measure productivity and quality. A model for the evaluation of changes is presented, with measurable values for productivity and quality. The model can be used to map and compare the states prepress are in, and/or be used to evaluate if changes are needed.

  12. Modeling and evaluation of compliance to water quality regulations in bathing areas on the Daoulas catchment and estuary (France).

    Science.gov (United States)

    Bougeard, M; Le Saux, J C; Jouan, M; Durand, G; Pommepuy, M

    2010-01-01

    The microbiological quality of waters in estuaries determines their acceptability for recreational uses. Microbiological contamination often results from urban wastewater discharges or non-point source pollution (manure spreading), and can cause bathing zones to be closed. European regulations (EC/7/2006) have proposed standards (500 E. coli/100 ml) for the acceptability areas for bathing. In this study, two models were associated to simulate contamination: SWAT on a catchment and MARS 2D in the downstream estuary. After river flow calibration and validation, two scenarios were simulated in SWAT, and E. coli fluxes obtained at the main outlet of the catchment were then introduced into MARS 2D to follow E. coli concentrations in the estuary. An annual evaluation of compliance to bathing area water quality standards was then calculated, linked with daily rainfall classes. Water quality in the estuary was below the standard on 13 days, including 5 days with rainfall superior to 10 mm, due to faecal contamination from soil leaching by rain, and 5 days with rainfall ranging from 0.1 to 5 mm/day, due to the high frequency of this level of rainfall. To conclude, this study allowed us to demonstrate the efficiency of models to gain a better understanding on water quality degradation factors.

  13. Application of Six Sigma Model to Evaluate the Analytical Quality of Four HbA1c Analyzers.

    Science.gov (United States)

    Maesa, Jos Eacute M; Fern Aacute Ndez-Riejos, Patricia; S Aacute Nchez-Mora, Catalina; Toro-Crespo, Mar Iacute A De; Gonz Aacute Lez-Rodriguez, Concepci Oacute N

    2017-01-01

    The Six Sigma Model is a global quality management system applicable to the determination of glycated hemoglobin (HbA1c). In addition, this model can ensure the three characteristics influencing the patient risk: the correct performance of the analytical method with low inaccuracy and bias, the quality control strategy used by the laboratory, and the necessary quality of the analyte. The aim of this study is to use the Six Sigma Model for evaluating quality criteria in the determination of glycated hemoglobin HbA1c and its application to assess four different HbA1c analyzers. Four HbA1c analyzers were evaluated: HA-8180V®, D-100®, G8®, and Variant II Turbo®. For 20 consecutive days, two levels of quality control (high and low) provided by the manufacturers were measured in each of the instruments. Imprecision (CV), bias, and Sigma values (σ) were calculated with the data obtained and a method decision chart was developed considering a range of quality requirements (allowable total error, TEa). For a TEa = 3%, HA-8180V = 1.54 σ, D-100 = 1.63 σ, G8 = 2.20 σ, and Variant II Turbo = -0.08 σ. For a TEa = 4%, HA-8180V = 2.34 σ, D-100 = 2.32 σ, G8 = 3.74 σ, and Variant II Turbo = 0.16 σ. For a TEa = 10%, HA8180V = 7.12 σ, D-100 = 6.46 σ, G8 = 13.0 σ, and Variant II Turbo = 1.56 σ. Applying the Stockholm consensus and its subsequent Milan review to the results: the maximum level in quality requirements for HbA1c is an allowable total error (TEa) = 3%, G8 is located in region 2 σ (2.20), which is a poor result, and HA-8180V and D-100 are both in region 1 σ (1.54 and 1.63, respectively), which is an unacceptable analytical performance.

  14. EVALUATION OF MACHINE TOOL QUALITY

    Directory of Open Access Journals (Sweden)

    Ivan Kuric

    2011-12-01

    Full Text Available Paper deals with aspects of quality and accuracy of machine tools. As the accuracy of machine tools has key factor for product quality, it is important to know the methods for evaluation of quality and accuracy of machine tools. Several aspects of diagnostics of machine tools are described, such as aspects of reliability.

  15. Applying air pollution modelling within a multi-criteria decision analysis framework to evaluate UK air quality policies

    Science.gov (United States)

    Chalabi, Zaid; Milojevic, Ai; Doherty, Ruth M.; Stevenson, David S.; MacKenzie, Ian A.; Milner, James; Vieno, Massimo; Williams, Martin; Wilkinson, Paul

    2017-10-01

    A decision support system for evaluating UK air quality policies is presented. It combines the output from a chemistry transport model, a health impact model and other impact models within a multi-criteria decision analysis (MCDA) framework. As a proof-of-concept, the MCDA framework is used to evaluate and compare idealized emission reduction policies in four sectors (combustion in energy and transformation industries, non-industrial combustion plants, road transport and agriculture) and across six outcomes or criteria (mortality, health inequality, greenhouse gas emissions, biodiversity, crop yield and air quality legal compliance). To illustrate a realistic use of the MCDA framework, the relative importance of the criteria were elicited from a number of stakeholders acting as proxy policy makers. In the prototype decision problem, we show that reducing emissions from industrial combustion (followed very closely by road transport and agriculture) is more advantageous than equivalent reductions from the other sectors when all the criteria are taken into account. Extensions of the MCDA framework to support policy makers in practice are discussed.

  16. An Evaluation of Taiwanese B&B Service Quality Using the IPA Model

    Directory of Open Access Journals (Sweden)

    Gao-Liang Wang

    2012-09-01

    Full Text Available According to a December 2011 report released by Taiwan’s Tourism Bureau, there were 3,763 bed-and-breakfast guesthouses (B&B in Taiwan, 3,367 of which were legal with a combined 13,389 rooms, increasing by 96 percent from December 2006. It seems that the B&B sector is quite a popular target for investors. As the word-of-mouth advertising has been considered one of the most influential marketing methods, those who invest in B&Bs must manage to utilize their limited resources to improve customer satisfaction in a fast-growing and competitive market. The best marketing approach in reaching out to B&B customers, as suggested by this study’s author, would be word-of-mouth adverting. A PZB framed questionnaire is used in this study to explore the expectations and satisfaction of B&B customers both before and after the accommodation period, with the Importance-Performance Analysis (IPA model applied to analyze and measure the service quality. Findings from the questionnaire survey showed 3 out of the totally 23 service factors falling in the “concentrated concerned” quadrant (i.e., tidiness, architectural characteristics, and reasonable rates; 6 factors falling in the “continued maintenance” quadrant (i.e., adequate parking place, commitment to customers, handling of customers’ opinions, legality of B&B, grievance handling, and the local specialties-ordering service; 10 factors falling in the “low priority” quadrant (i.e., modern facilities, safety devices, availability of breakfast, security of online reservations; 4 factors falling in the “over-strived” quadrant (i.e., the availability of custom-made services, the ability to grasp customers’ needs, the availability of tour packages, and the availability of experiences regarding local industries.

  17. Evaluating the capability of regional-scale air quality models to capture the vertical distribution of pollutants

    Directory of Open Access Journals (Sweden)

    E. Solazzo

    2013-06-01

    Full Text Available This study is conducted in the framework of the Air Quality Modelling Evaluation International Initiative (AQMEII and aims at the operational evaluation of an ensemble of 12 regional-scale chemical transport models used to predict air quality over the North American (NA and European (EU continents for 2006. The modelled concentrations of ozone and CO, along with the meteorological fields of wind speed (WS and direction (WD, temperature (T, and relative humidity (RH, are compared against high-quality in-flight measurements collected by instrumented commercial aircraft as part of the Measurements of OZone, water vapour, carbon monoxide and nitrogen oxides by Airbus In-service airCraft (MOZAIC programme. The evaluation is carried out for five model domains positioned around four major airports in NA (Portland, Philadelphia, Atlanta, and Dallas and one in Europe (Frankfurt, from the surface to 8.5 km. We compare mean vertical profiles of modelled and measured variables for all airports to compute error and variability statistics, perform analysis of altitudinal error correlation, and examine the seasonal error distribution for ozone, including an estimation of the bias introduced by the lateral boundary conditions (BCs. The results indicate that model performance is highly dependent on the variable, location, season, and height (e.g. surface, planetary boundary layer (PBL or free troposphere being analysed. While model performance for T is satisfactory at all sites (correlation coefficient in excess of 0.90 and fractional bias ≤ 0.01 K, WS is not replicated as well within the PBL (exhibiting a positive bias in the first 100 m and also underestimating observed variability, while above 1000 m, the model performance improves (correlation coefficient often above 0.9. The WD at NA airports is found to be biased in the PBL, primarily due to an overestimation of westerly winds. RH is modelled well within the PBL, but in the free troposphere large

  18. Evaluating Higher Education Institutions through Agency and Resources-Capabilities Theories. A Model for Measuring the Perceived Quality of Service

    Directory of Open Access Journals (Sweden)

    José G. Vargas-Hernández

    2016-12-01

    Full Text Available The objective of this paper is to explain through the agency theory and theory of resources and capacities as is the process of assessment in higher education institutions. The actors that are involved in the decision-making and the use that is giving the resources derived from repeatedly to practices that opportunistic diminishing the value that is given to the evaluation, in addition to the decrease in team work. A model is presented to measure the perception of service quality by students of the Technological Institute of Celaya, as part of the system of quality control, based on the theoretical support of several authors who have developed this topic (SERVQUAL and SERPERF an instrument adapted to the student area of the institution called SERQUALITC is generated. The paper presents the areas or departments to assess and the convenient size, the number of items used by size and Likert scale, the validation study instrument is mentioned. Finally, it is presented the model that poses a global vision of quality measurement process including corrective action services that enable continuous improvement.

  19. Evaluating Higher Education Institutions through Agency and Resources-Capabilities Theories. A Model for Measuring the Perceived Quality of Service

    Directory of Open Access Journals (Sweden)

    José Guadalupe Vargas-hernández

    2016-08-01

    Full Text Available The objective of this paper is to explain through the agency theory and theory of resources and capacities as is the process of assessment in higher education institutions. The actors that are involved in the decision-making and the use that is giving the resources derived from repeatedly to practices that opportunistic diminishing the value that is given to the evaluation, in addition to the decrease in team work. A model is presented to measure the perception of service quality by students of the Technological Institute of Celaya, as part of the system of quality control, based on the theoretical support of several authors who have developed this topic (SERVQUAL and SERPERF an instrument adapted to the student area of the institution called SERQUALITC is generated. The paper presents the areas or departments to assess and the convenient size, the number of items used by size and Likert scale, the validation study instrument is mentioned. Finally, it is presented the model that poses a global vision of quality measurement process including corrective action services that enable continuous improvement.

  20. Preliminary Evaluation of the Community Multiscale Air Quality (CMAQ) Model Version 5.1

    Science.gov (United States)

    The AMAD will perform two annual CMAQ model simulations, one with the current publically available version of the CMAQ model (v5.0.2) and the other with the beta version of the new model (v5.1). The results of each model simulation will then be compared to observations and the pe...

  1. Evaluation of the Community Multiscale Air Quality (CMAQ) Model Version 5.1

    Science.gov (United States)

    The AMAD will performed two CMAQ model simulations, one with the current publically available version of the CMAQ model (v5.0.2) and the other with the new version of the CMAQ model (v5.1). The results of each model simulation are compared to observations and the performance of t...

  2. Dynamic Evaluation Model and Application Methods for Engineering Machine Maintenance Quality

    Institute of Scientific and Technical Information of China (English)

    WANG Jian; WANG Yan-feng; DAI Ling; WANG Xi

    2012-01-01

    It is an important content of equipment management to keep the engineering machine well. Based on the theory of component technology and grey related algorithm arithmetic, the requirements and procedures of engineering machine maintenance predicting process are analyzed, and a support object evaluation system is provided. The qualitative and quantitative indexes of evaluating process are fully taken into consideration to provide scientific methods and ways for proper evaluation and decision.

  3. Ranking the technical dimensions of e-banking service quality evaluation models using Analytical Hierarchy Process

    Directory of Open Access Journals (Sweden)

    NoorMohammad Yaghubi

    Full Text Available With the expansion of internet, delivering e-services are rapidly growing in the bank industry. Therefore improving e-service quality for delivering better services is one of the most important areas of activity for banks. One of the most important aspect ...

  4. Water Quality Modeling and Evaluation of Nutrient Control Strategies Using QUAL2K in the Small Rivers

    Directory of Open Access Journals (Sweden)

    Mohammad Reza Mehrasbi

    2015-12-01

    Full Text Available Background: Qual2k is a stream water quality model and was used to evaluate the water quality of the Kine-Vars River and assess the response of the river to nutrient management strategies. Methods: For that purpose, 7 sample stations were selected and surface water samples were collected in the winter and summer of 2012 and were analyzed for temperature, dissolved oxygen, biological oxygen demand, ammonia–nitrogen, nitrate–nitrogen, organic nitrogen, organic phosphorus, and inorganic phosphorus. Results: Results showed that the Kine-Vars River is saturated with N and P and is classified as eutrophic. The simulated data showed that the total nitrogen and total phosphorus loads of the studied river need to be reduced by 76% and 93%, respectively, to reach water quality objectives. Conclusion: Application of nutrient control strategies can reduce the nutrient loads significantly but is not sufficient to change the river classification from eutrophic to oligotrophic in a short time; thus, additional nutrient control measures are necessary.

  5. Development of a Sound Quality Evaluation System

    DEFF Research Database (Denmark)

    Kvist, Preben; Thomsen, Carsten; Lee, Sanjil

    2004-01-01

    This paper describes the development of the first version of the Sound Quality Evaluation System. The purpose of the system is to predict the subjective sound quality of home theater systems from objective measurements. 16 home theater systems were measured in an anechoic room. Several metrics...... expected to correlate w ith the subjective quality were proposed and tested. A model for the sound quality was created by mapping the subjective evaluations of the Home Theater System s with the metrics calculated for each system. Correlation between subjective listening test and the prediction is presente...

  6. Quantitative computed tomography and cranial burr holes: a model to evaluate the quality of cranial reconstruction in humans.

    Science.gov (United States)

    Worm, Paulo Valdeci; Ferreira, Nelson Pires; Ferreira, Marcelo Paglioli; Kraemer, Jorge Luiz; Lenhardt, Rene; Alves, Ronnie Peterson Marcondes; Wunderlich, Ricardo Castilho; Collares, Marcus Vinicius Martins

    2012-05-01

    Current methods to evaluate the biologic development of bone grafts in human beings do not quantify results accurately. Cranial burr holes are standardized critical bone defects, and the differences between bone powder and bone grafts have been determined in numerous experimental studies. This study evaluated quantitative computed tomography (QCT) as a method to objectively measure cranial bone density after cranial reconstruction with autografts. In each of 8 patients, 2 of 4 surgical burr holes were reconstructed with autogenous wet bone powder collected during skull trephination, and the other 2 holes, with a circular cortical bone fragment removed from the inner table of the cranial bone flap. After 12 months, the reconstructed areas and a sample of normal bone were studied using three-dimensional QCT; bone density was measured in Hounsfield units (HU). Mean (SD) bone density was 1535.89 (141) HU for normal bone (P < 0.0001), 964 (176) HU for bone fragments, and 453 (241) HU for bone powder (P < 0.001). As expected, the density of the bone fragment graft was consistently greater than that of bone powder. Results confirm the accuracy and reproducibility of QCT, already demonstrated for bone in other locations, and suggest that it is an adequate tool to evaluate cranial reconstructions. The combination of QCT and cranial burr holes is an excellent model to accurately measure the quality of new bone in cranial reconstructions and also seems to be an appropriate choice of experimental model to clinically test any cranial bone or bone substitute reconstruction.

  7. Diagnostic Air Quality Model Evaluation of Source-Specific Primary and Secondary Fine Particulate Carbon

    Science.gov (United States)

    Ambient measurements of 78 source-specific tracers of primary and secondary carbonaceous fine particulate matter collected at four midwestern United States locations over a full year (March 2004–February 2005) provided an unprecedented opportunity to diagnostically evaluate...

  8. Handling Qualities Evaluations of Low Complexity Model Reference Adaptive Controllers for Reduced Pitch and Roll Damping Scenarios

    Science.gov (United States)

    Hanson, Curt; Schaefer, Jacob; Burken, John J.; Johnson, Marcus; Nguyen, Nhan

    2011-01-01

    National Aeronautics and Space Administration (NASA) researchers have conducted a series of flight experiments designed to study the effects of varying levels of adaptive controller complexity on the performance and handling qualities of an aircraft under various simulated failure or damage conditions. A baseline, nonlinear dynamic inversion controller was augmented with three variations of a model reference adaptive control design. The simplest design consisted of a single adaptive parameter in each of the pitch and roll axes computed using a basic gradient-based update law. A second design was built upon the first by increasing the complexity of the update law. The third and most complex design added an additional adaptive parameter to each axis. Flight tests were conducted using NASA s Full-scale Advanced Systems Testbed, a highly modified F-18 aircraft that contains a research flight control system capable of housing advanced flight controls experiments. Each controller was evaluated against a suite of simulated failures and damage ranging from destabilization of the pitch and roll axes to significant coupling between the axes. Two pilots evaluated the three adaptive controllers as well as the non-adaptive baseline controller in a variety of dynamic maneuvers and precision flying tasks designed to uncover potential deficiencies in the handling qualities of the aircraft, and adverse interactions between the pilot and the adaptive controllers. The work was completed as part of the Integrated Resilient Aircraft Control Project under NASA s Aviation Safety Program.

  9. Monitoring and evaluating soil quality

    NARCIS (Netherlands)

    Bloem, J.; Schouten, A.J.; Sørensen, S.J.; Rutgers, M.; Werf, van der A.K.; Breure, A.M.

    2006-01-01

    This book provides a selection of microbiological methods that are already applied in regional or national soil quality monitoring programs. It is split into two parts: part one gives an overview of approaches to monitoring, evaluating and managing soil quality. Part two provides a selection of meth

  10. Evaluating Frequency, Diagnostic Quality, and Cost of Lyme Borreliosis Testing in Germany: A Retrospective Model Analysis

    Directory of Open Access Journals (Sweden)

    I. Müller

    2012-01-01

    Full Text Available Background. Data on the economic impact of Lyme borreliosis (LB on European health care systems is scarce. This project focused on the epidemiology and costs for laboratory testing in LB patients in Germany. Materials and Methods. We performed a sentinel analysis of epidemiological and medicoeconomic data for 2007 and 2008. Data was provided by a German statutory health insurance (DAK company covering approx. 6.04 million members. In addition, the quality of diagnostic testing for LB in Germany was studied. Results. In 2007 and 2008, the incident diagnosis LB was coded on average for 15,742 out of 6.04 million insured members (0.26%. 20,986 EIAs and 12,558 immunoblots were ordered annually for these patients. For all insured members in the outpatient sector, a total of 174,820 EIAs and 52,280 immunoblots were reimbursed annually to health care providers (cost: 2,600,850€. For Germany, the overall expected cost is estimated at 51,215,105€. However, proficiency testing data questioned test quality and standardization of diagnostic assays used. Conclusion. Findings from this study suggest ongoing issues related to care for LB and may help to improve future LB disease management.

  11. SERVQUAL MODEL IMPLEMENTATION FOR EVALUATING QUALITY SERVICE OF THE LIBRARY OF HIGHER EDUCATIONINSTITUTION IN BOTUCATU REGION

    OpenAIRE

    2014-01-01

    Currently technology colleges are growing and gaining market share. So, it is of paramount importance a careful evaluation of the most important components in an institution of higher education, the library, which is fundamental for the development of future professionals. Therefore, the implementation of a tool to measure and compare results through user satisfaction in relation to services provided to a particular service is required. SERVQUAL is a measurement tool, used in t...

  12. Healthcare quality maturity assessment model based on quality drivers.

    Science.gov (United States)

    Ramadan, Nadia; Arafeh, Mazen

    2016-04-18

    Purpose - Healthcare providers differ in their readiness and maturity levels regarding quality and quality management systems applications. The purpose of this paper is to serve as a useful quantitative quality maturity-level assessment tool for healthcare organizations. Design/methodology/approach - The model proposes five quality maturity levels (chaotic, primitive, structured, mature and proficient) based on six quality drivers: top management, people, operations, culture, quality focus and accreditation. Findings - Healthcare managers can apply the model to identify the status quo, quality shortcomings and evaluating ongoing progress. Practical implications - The model has been incorporated in an interactive Excel worksheet that visually displays the quality maturity-level risk meter. The tool has been applied successfully to local hospitals. Originality/value - The proposed six quality driver scales appear to measure healthcare provider maturity levels on a single quality meter.

  13. Development and evaluation of an ammonia bidirectional flux parameterization for air quality models

    Science.gov (United States)

    Ammonia is an important contributor to particulate matter in the atmosphere and can significantly impact terrestrial and aquatic ecosystems. Surface exchange between the atmosphere and biosphere is a key part of the ammonia cycle. New modeling techniques are being developed for u...

  14. Development and application of a high resolution hybrid modelling system for the evaluation of urban air quality

    Science.gov (United States)

    Pepe, N.; Pirovano, G.; Lonati, G.; Balzarini, A.; Toppetti, A.; Riva, G. M.; Bedogni, M.

    2016-09-01

    A hybrid modelling system (HMS) was developed to provide hourly concentrations at the urban local scale. The system is based on the combination of a meteorological model (WRF), a chemical and transport eulerian model (CAMx), which computes concentration levels over the regional domains, and a lagrangian dispersion model (AUSTAL2000), accounting for dispersion phenomena within the urban area due to local emission sources; a source apportionment algorithm is also included in the HMS in order to avoid the double counting of local emissions. The HMS was applied over a set of nested domains, the innermost covering a 1.6 × 1.6 km2 area in Milan city center with 20 m grid resolution, for NOX simulation in 2010. For this paper the innermost domain was defined as "local", excluding usual definition of urban areas. WRF model captured the overall evolution of the main meteorological features, except for some very stagnant situations, thus influencing the subsequent performance of regional scale model CAMx. Indeed, CAMx was able to reproduce the spatial and temporal evolution of NOX concentration over the regional domain, except a few episodes, when observed concentrations were higher than 100 ppb. The local scale model AUSTAL2000 provided high-resolution concentration fields that sensibly mirrored the road and traffic pattern in the urban domain. Therefore, the first important outcome of the work is that the application of the hybrid modelling system allowed a thorough and consistent description of urban air quality. This result represents a relevant starting point for future evaluation of pollution exposure within an urban context. However, the overall performance of the HMS did not provide remarkable improvements with respect to stand-alone CAMx at the two only monitoring sites in Milan city center. HMS results were characterized by a smaller average bias, that improved about 6-8 ppb corresponding to 12-13% of the observed concentration, but by a lower correlation, that

  15. Model quality and safety studies

    DEFF Research Database (Denmark)

    Petersen, K.E.

    1997-01-01

    The paper describes the EC initiative on model quality assessment and emphasizes some of the problems encountered in the selection of data from field tests used in the evaluation process. Further, it discusses the impact of model uncertainties in safety studies of industrial plants. The model...... that most of these have never been through a procedure of evaluation, but nonetheless are used to assist in making decisions that may directly affect the safety of the public and the environment. As a major funder of European research on major industrial hazards, DGXII is conscious of the importance......-tain model is appropriate for use in solving a given problem. Further, the findings from the REDIPHEM project related to dense gas dispersion will be highlighted. Finally, the paper will discuss the need for model quality assessment in safety studies....

  16. Stream Water Quality Model

    Data.gov (United States)

    U.S. Environmental Protection Agency — QUAL2K (or Q2K) is a river and stream water quality model that is intended to represent a modernized version of the QUAL2E (or Q2E) model (Brown and Barnwell 1987).

  17. Evaluation of a regional air-quality model with bidirectional NH3 exchange coupled to an agroecosystem model

    National Research Council Canada - National Science Library

    J. O. Bash; E. J. Cooter; R. L. Dennis; J. T. Walker; J. E. Pleim

    2013-01-01

    ...) Environmental Policy Integrated Climate (EPIC) agroecosystem model. The coupled CMAQ-EPIC model relies on EPIC fertilization timing, rate and composition while CMAQ models the soil ammonium (NH4...

  18. Comparison of indoor and outdoor concentrations of CO at a public school. Evaluation of an indoor air quality model

    Science.gov (United States)

    Chaloulakou, A.; Mavroidis, I.

    A field study was carried out to investigate the internal and external carbon monoxide (CO) concentration levels of a public school building in Athens, Greece. Simultaneous measurements of indoor and outdoor CO concentrations were conducted using a non-dispersive infrared analyzer. Measurements of mean hourly CO concentrations inside and outside the sampling room were conducted on a 24-h basis for 13 consecutive days during May and June 1999 and for 14 consecutive days during December 1999. The aim of the study was to investigate the attenuation pattern of external pollution levels within the building. The diurnal concentration variations reported for different days during the week show that indoor CO concentrations are in general lower than the respective outdoor levels, and that the morning peaks of indoor concentrations show a delay of 1 h or less compared to the morning peaks of outdoor concentrations. The measured indoor to outdoor concentration ratios show a seasonal variation. An indoor air quality model for the prediction of indoor concentration levels developed by Hayes (J. Air Pollut. Control Assoc. 39 (11) (1989) 1453; J. Air Waste Manage. Assoc. 41 (2) (1991) 161) is coded as a computer program and evaluated using the experimental data. The model results are in good agreement with the indoor concentration measurements, although in some cases the model cannot respond adequately to sharp outdoor concentration changes. The ratio between measured and predicted daily maximum indoor concentration ranges between 0.88 and 1.23. The regression curve between predicted by the model and measured hourly indoor concentrations, for a continuous period of 96 h, has a slope of 0.64 and a coefficient of determination ( R2) of 0.69.

  19. A performance evaluation of MM5/MNEQA/CMAQ air quality modelling system to forecast ozone concentrations in Catalonia

    Directory of Open Access Journals (Sweden)

    R. Arasa

    2010-01-01

    Full Text Available We examine the ability of a modelling system to forecast the formation and transport of ozone over Catalonia, at the NE of the Iberian Peninsula. To this end, the Community Multiscale Air Quality (CMAQ modelling system developed by the United States Environmental Protection Agency (US EPA and the PSU/NCAR mesoscale modelling system MM5 are coupled to a new emission model, the Numerical Emission Model for Air Quality (MNEQA. The outputs of the modelling system for the period from May to October 2008 are compared with ozone measurements at selected air-monitoring stations belonging to the Catalan Government. Results indicate a good behaviour of the model in reproducing diurnal ozone concentrations, as statistical values fall within the EPA and EU regulatory frameworks.

  20. 3D Skeleton model derived from Kinect Depth Sensor Camera and its application to walking style quality evaluations

    OpenAIRE

    Kohei Arai; Rosa Andrie Asmara

    2013-01-01

    Feature extraction for gait recognition has been created widely. The ancestor for this task is divided into two parts, model based and free-model based. Model-based approaches obtain a set of static or dynamic skeleton parameters via modeling or tracking body components such as limbs, legs, arms and thighs. Model-free approaches focus on shapes of silhouettes or the entire movement of physical bodies. Model-free approaches are insensitive to the quality of silhouettes. Its advantage is a low ...

  1. Evaluating the Quality of the Child Care in Finland

    Science.gov (United States)

    Hujala, Eeva; Fonsen, Elina; Elo, Janniina

    2012-01-01

    In this study we examine parents' and teachers' perceptions of the early childhood education and care (ECEC) quality in Finland. The study is based on the paradigm of inclusionary quality and the assessment is based on the quality evaluation model. The parents and teachers assess the quality to be good. The strength of the quality was the effect…

  2. Evaluating the effectiveness of management practices on hydrology and water quality at watershed scale with a rainfall-runoff model.

    Science.gov (United States)

    Liu, Yaoze; Bralts, Vincent F; Engel, Bernard A

    2015-04-01

    The adverse influence of urban development on hydrology and water quality can be reduced by applying best management practices (BMPs) and low impact development (LID) practices. This study applied green roof, rain barrel/cistern, bioretention system, porous pavement, permeable patio, grass strip, grassed swale, wetland channel, retention pond, detention basin, and wetland basin, on Crooked Creek watershed. The model was calibrated and validated for annual runoff volume. A framework for simulating BMPs and LID practices at watershed scales was created, and the impacts of BMPs and LID practices on water quantity and water quality were evaluated with the Long-Term Hydrologic Impact Assessment-Low Impact Development 2.1 (L-THIA-LID 2.1) model for 16 scenarios. The various levels and combinations of BMPs/LID practices reduced runoff volume by 0 to 26.47%, Total Nitrogen (TN) by 0.30 to 34.20%, Total Phosphorus (TP) by 0.27 to 47.41%, Total Suspended Solids (TSS) by 0.33 to 53.59%, Lead (Pb) by 0.30 to 60.98%, Biochemical Oxygen Demand (BOD) by 0 to 26.70%, and Chemical Oxygen Demand (COD) by 0 to 27.52%. The implementation of grass strips in 25% of the watershed where this practice could be applied was the most cost-efficient scenario, with cost per unit reduction of $1m3/yr for runoff, while cost for reductions of two pollutants of concern was $445 kg/yr for Total Nitrogen (TN) and $4871 kg/yr for Total Phosphorous (TP). The scenario with very high levels of BMP and LID practice adoption (scenario 15) reduced runoff volume and pollutant loads from 26.47% to 60.98%, and provided the greatest reduction in runoff volume and pollutant loads among all scenarios. However, this scenario was not as cost-efficient as most other scenarios. The L-THIA-LID 2.1 model is a valid tool that can be applied to various locations to help identify cost effective BMP/LID practice plans at watershed scales.

  3. The statistical evaluation and comparison of ADMS-Urban model for the prediction of nitrogen dioxide with air quality monitoring network.

    Science.gov (United States)

    Dėdelė, Audrius; Miškinytė, Auksė

    2015-09-01

    In many countries, road traffic is one of the main sources of air pollution associated with adverse effects on human health and environment. Nitrogen dioxide (NO2) is considered to be a measure of traffic-related air pollution, with concentrations tending to be higher near highways, along busy roads, and in the city centers, and the exceedances are mainly observed at measurement stations located close to traffic. In order to assess the air quality in the city and the air pollution impact on public health, air quality models are used. However, firstly, before the model can be used for these purposes, it is important to evaluate the accuracy of the dispersion modelling as one of the most widely used method. The monitoring and dispersion modelling are two components of air quality monitoring system (AQMS), in which statistical comparison was made in this research. The evaluation of the Atmospheric Dispersion Modelling System (ADMS-Urban) was made by comparing monthly modelled NO2 concentrations with the data of continuous air quality monitoring stations in Kaunas city. The statistical measures of model performance were calculated for annual and monthly concentrations of NO2 for each monitoring station site. The spatial analysis was made using geographic information systems (GIS). The calculation of statistical parameters indicated a good ADMS-Urban model performance for the prediction of NO2. The results of this study showed that the agreement of modelled values and observations was better for traffic monitoring stations compared to the background and residential stations.

  4. The classified Web Qual variable is based on Kano Model for the Evaluation of customer satisfaction of internet banking service quality

    Directory of Open Access Journals (Sweden)

    ali shaemi

    2012-09-01

    Full Text Available All Given the importance and position of internet banking and the growing trend of internet banking services in the country in recent years, now is the financial and credit institutions and banks have found a good position to maintain and develop effective strategies without the utilization of scientific and practical management Information and communication is not possible.Today,banks in order to remain competitive need to improve the quality of its internet services to the linear view of this topic is not comprehensive. In order to study integrated model web-qual and kano is used that with removal the linear hypothesis is.In the first step towards internet service quality factors based on the nation's banks web-qual model to determine the current practice of banks and provide the service expectations of customers and their vision of internet service quality mentioned has been evaluated.In the first step factors towards internet service quality the nation's banks based on web-qual model to determine the current practice of banks and provide the service expectations of customers and their vision of internet service quality mentioned has been evaluated.Considering the gap between customer expectations and current practice of banks in providing these services, services to the two categories is divided into weak and strong.In the second step of research with integrating web-qual and Kano model, service quality factors based on Kano model classified to determine which features of internet service quality determined by the model web-qual and evaluated, is the strategic importance in relation to customer satisfaction.

  5. Comprehensive quality evaluation of Chishao by HPLC

    OpenAIRE

    Jian Zaiyou; Wang Wenquan; Xu Guifang; Meng Li; Hou Junling

    2013-01-01

    Objective: The purpose of this paper is to comprehensively evaluate the quality of Chishao. Methods: In the experiment of this paper, the fingerprint spectrums of Chishao in all locations are established by RP-HPLC and the model of principle component analysis with the RP-HPLC peak areas is established. Results: The quality of Chishao in the northern part of China or that made of Paeonia lactiflora is better than that of these in others or that made of other species. The quality of Chishao co...

  6. EPANET water quality model

    Energy Technology Data Exchange (ETDEWEB)

    Rossman, L.A.

    1993-01-01

    EPANET represents a third generation of water quality modeling software developed by the U.S. EPA's Drinking Water Research Division, offering significant advances in the state of the art for network water quality analysis. EPANET performs extended period simulation of hydraulic and water quality behavior within water distribution systems. In addition to substance concentration, water age and source tracing can also be simulated. EPANET includes a full featured hydraulic simulation model that can handle various types of pumps, valves, and their control rules. The water quality module is equipped to handle constituent reactions within the bulk pipe flow and at the pipe wall. It also features an efficient computational scheme that automatically determines optimal time steps and pipe segmentation for accurate tracking of material transport over time. EPANET is currently being used in the US to study such issues as loss of chlorine residual, source blending and trihalomethane (THM) formation, how altered tank operation affects water age, and total dissolved solids (TDS) control for an irrigation network.

  7. DIAGNOSTIC EVALUATION OF NUMBERICAL AIR QUALITY MODELS WITH SPECIALIZED AMBIENT OBSERVATIONS: TESTING THE COMMUNITY MULTISCALE AIR QUALITY MODELING SYSTEM (CMAQ) AT SELECTED SOS 95 GROUND SITES

    Science.gov (United States)

    Three probes for diagnosing photochemical dynamics are presented and applied to specialized ambient surface-level observations and to a numerical photochemical model to better understand rates of production and other process information in the atmosphere and in the model. Howeve...

  8. Modeling intercontinental transport of ozone in North America with CAMx for the Air Quality Model Evaluation International Initiative (AQMEII Phase 3

    Directory of Open Access Journals (Sweden)

    U. Nopmongcol

    2017-08-01

    Full Text Available Intercontinental ozone (O3 transport extends the geographic range of O3 air pollution impacts and makes local air pollution management more difficult. Phase 3 of the Air Quality Modeling Evaluation International Initiative (AQMEII-3 is examining the contribution of intercontinental transport to regional air quality by applying regional-scale atmospheric models jointly with global models. We investigate methods for tracing O3 from global models within regional models. The CAMx photochemical grid model was used to track contributions from boundary condition (BC O3 over a North American modeling domain for calendar year 2010 using a built-in tracer module called RTCMC. RTCMC can track BC contributions using chemically reactive tracers and also using inert tracers in which deposition is the only sink for O3. Lack of O3 destruction chemistry in the inert tracer approach leads to overestimation biases that can exceed 10 ppb. The flexibility of RTCMC also allows tracking O3 contributions made by groups of vertical BC layers. The largest BC contributions to seasonal average daily maximum 8 h averages (MDA8 of O3 over the US are found to be from the mid-troposphere (over 40 ppb with small contributions (a few ppb from the upper troposphere–lower stratosphere. Contributions from the lower troposphere are shown to not penetrate very far inland. Higher contributions in the western than the eastern US, reaching an average of 57 ppb in Denver for the 30 days with highest MDA8 O3 in 2010, present a significant challenge to air quality management approaches based solely on local or US-wide emission reductions. The substantial BC contribution to MDA8 O3 in the Intermountain West means regional models are particularly sensitive to any biases and errors in the BCs. A sensitivity simulation with reduced BC O3 in response to 20 % lower emissions in Asia found a near-linear relationship between the BC O3 changes and surface O3 changes in the

  9. Evaluating results of the Welfare Quality multi-criteria evaluation model for classification of dairy cattle welfare at the herd level.

    Science.gov (United States)

    de Vries, M; Bokkers, E A M; van Schaik, G; Botreau, R; Engel, B; Dijkstra, T; de Boer, I J M

    2013-10-01

    The Welfare Quality multi-criteria evaluation (WQ-ME) model aggregates scores of single welfare measures into an overall assessment for the level of animal welfare in dairy herds. It assigns herds to 4 welfare classes: unacceptable, acceptable, enhanced, or excellent. The aim of this study was to demonstrate the relative importance of single welfare measures for WQ-ME classification of a selected sample of Dutch dairy herds. Seven trained observers quantified 63 welfare measures of the Welfare Quality protocol in 183 loose housed- and 13 tethered Dutch dairy herds (herd size: 10 to 211 cows). First, values of welfare measures were compared among the 4 welfare classes, using Kruskal-Wallis and Chi-squared tests. Second, observed values of single welfare measures were replaced with a fictitious value, which was the median value of herds classified in the next highest class, to see if improvement of a single measure would enable a herd to reach a higher class. Sixteen herds were classified as unacceptable, 85 as acceptable, 78 as enhanced, and none as excellent. Classification could not be calculated for 17 herds because data were missing (15 herds) or data were deemed invalid because the stockperson disturbed behavioral observations (2 herds). Herds classified as unacceptable showed significantly more very lean cows, more severely lame cows, and more often an insufficient number of drinkers than herds classified as acceptable. Herds classified as acceptable showed significantly more cows with high somatic cell count, with lesions, that could not be approached closer than 1m, colliding with components of the stall while lying down, and lying outside the lying area, and showed fewer cows with diarrhea, more often had an insufficient number of drinkers, and scored lower for the descriptors "relaxed" and "happy" than herds classified as enhanced. Increasing the number of drinkers and reducing the percentage of cows colliding with components of the stall while lying down

  10. QUALITY EVALUATION LEVEL DECISION IN OUTSOURCING UNDER ASYMMETRIC INFORMATION

    Institute of Scientific and Technical Information of China (English)

    Cuihua ZHANG; Haibin YU; Guangshu CHANG

    2006-01-01

    In this paper, the issue of quality evaluation level decision problem in outsourcing is studied under different information backgrounds. Based on the quality contracting optimization models of Stanley and others, a principal agent model concerned with quality prevention level and evaluation level is set up with regards to buyer as principal and supplier as agent. In the models, quality prevention level is a variable decided by the supplier, quality evaluation level and transfer payment are variables decided by the buyer. We focus on the study of quality evaluation level and transfer payment decision in outsourcing under asymmetric information. Maximal principle is used to get the solution to quality evaluation level when supplier quality prevention level information is hidden. At last simulation calculation is performed concerned with tractor production outsourcing business of an agricultural machine company. Simulation results under different information backgrounds are analyzed and compared.

  11. EVALUATING THE EFFECTS OF THE IMPLEMENTATION OF IRAN NATIONAL QUALITY AWARD NEW MODEL (INQA IN IRANIAN ORGANIZATIONS

    Directory of Open Access Journals (Sweden)

    Mahmoud Zamani

    2014-09-01

    Full Text Available The aim of this study is to examine the effectiveness of the Iran National Quality Award new model (INQA in corporations that have implemented this model in Iran. This research aims to reveal the effects of implementation of Iran National Quality Award (INQA New Model on seven dimensions of the Iranian companies which indeed are seven core factors of this model, i.e. Management & leadership, People, Processes, Resources, Customer & consumer results, Environment & community results, and Performance results. A mail survey was conducted on a simple random sample of 210 organizations that have achieved certification or appreciation during the implementation of INQA model in four rounds. 400 questionnaires were randomly distributed and 392 complete and correct questionnaires were returned. Descriptive and inferential statistics were employed to analyze the data.Results indicated that the highest positive impact of INQA New Model on the improvement of organizational performance of the surveyed organizations was on customers' area. Performance results, leadership and management, processes improvement, environment and society results, and finally better utilization of organizational resources were respectively other areas which are affected mostly. Also, this study found no significant relationship between the implementation of this model and the improvement of employees' conditions in the surveyed organizations.

  12. Application of Projection Pursuit Evaluation Model Based on Real-Coded Accelerating Genetic Algorithm in Evaluating Wetland Soil Quality Variations in the Sanjiang Plain,China

    Institute of Scientific and Technical Information of China (English)

    FU QIANG; XIE YONGGANG; WEI ZIMIN

    2003-01-01

    A new technique of dimension reduction named projection pursuit is applied to model and evaluatewetland soil quality variations in the Sanjiang Plain, Helongjiang Province, China. By adopting the im-proved real-coded accelerating genetic algorithm (RAGA), the projection direction is optimized and multi-dimensional indexes are converted into low-dimensional space. Classification of wetland soils and evaluationof wetland soil quality variations are realized by pursuing optimum projection direction and projection func-tion value. Therefore, by adopting this new method, any possible human interference can be avoided andsound results can be achieved in researching quality changes and classification of wetland soils.

  13. Comprehensive quality evaluation of Chishao by HPLC

    Directory of Open Access Journals (Sweden)

    Jian Zaiyou

    2013-10-01

    Full Text Available Objective: The purpose of this paper is to comprehensively evaluate the quality of Chishao. Methods: In the experiment of this paper, the fingerprint spectrums of Chishao in all locations are established by RP-HPLC and the model of principle component analysis with the RP-HPLC peak areas is established. Results: The quality of Chishao in the northern part of China or that made of Paeonia lactiflora is better than that of these in others or that made of other species. The quality of Chishao comes from P. veitchii is in the middle class and is better than those that comes from P. obovata, P. mairei and P. anomala. The results are consistent with traditional views of the quality of this plant. These results indicates that principal component analysis (PCA can be used as an effective and economic method to evaluate the quality of Chishao, and may be extended to other Chinese medicinal plants. Conclusions: Due to the complex basis of the efficacy of Traditional Chinese Medicine (TCM, the method such as PCA of several chemical components appears to be a more appropriate method for the quality evaluation of TCM in contrast to the determination of a single or few chemicals.

  14. Quality evaluation in logistic services

    OpenAIRE

    Franceschini, Fiorenzo; Rafele, Carlo

    2000-01-01

    The paper highlights some problems relevant to the quality measurements in logistic services. "Traditional" logistic indicators are compared with the service dimensions defined in the Parasuraman-Zeithaml-Berry model. Furthermore, the problem of service indicators aging is analyzed and discussed. In order to enhance readers' ability to contribute to the development in the field, the authors pose open-ended questions in the article

  15. 基于SERVQUAL的工程服务质量评价研究%Evaluation of Service Quality in Construction Based on SERVQUAL Model

    Institute of Scientific and Technical Information of China (English)

    张亚开; 郑磊; 刘璜; 刘元春

    2015-01-01

    As a new research direction on the project quality management,the effect of project service quality on the contractors' competitiveness and sustainable development is becoming increasingly noticed. Based on the SERVQUAL model and project service quality characteristics and the relevant research findings,a project service quality evaluation model is built to evaluate the project service quality level and the relevant shortcomings. Results of the example show that this method can make accurate and object assessment of the project service quality level provided by contractors and clearly expose its project service quality shortcomings. At last,some suggestions are provided for the contractor to improve its project service quality according to the evaluation results.%作为工程质量管理一个新的研究方向,工程服务质量对承包商的竞争力及其可持续发展的影响日益受到重视。为客观评价承包商工程服务质量水平并发现其中的不足,以SERVQUAL模型为基础,结合工程服务特点及相关研究成果,构建了承包商工程服务质量评价模型。应用实例研究表明,该模型可以对承包商工程服务质量水平做出准确、客观的评价,同时能够清晰地暴露承包商工程服务质量短板。根据评价结果,向承包商提出了提高其工程服务质量水平的几点建议。

  16. Performance Evaluation of Public Services: A Development of Public Services Quality Measurement and Customer Satisfaction Model on Three Cities in Java

    Directory of Open Access Journals (Sweden)

    Gita Gayatri

    2009-12-01

    Full Text Available Decentralization in Indonesia was meant to aid in the shifting of power from the central government to local governments, with the main aim to increase public services towards a more expeditious, efficient, flexible, and high quality of services, changing the paradigm from a ‘served bureaucracy’ towards a ‘bureaucracy that serves’. This research will evaluate: first, the perception of public service consumers towards the quality of public/government services, second, the perceived value received from public services, as well as third, the measurement of their satisfaction level resulting from the quality of services delivered by local governments at city level in the three areas of the Java Island. The research will use triangulation methods: qualitative research will be conducted using focus group discussions whereas quantitative research will be conducted using surveys.The findings are: first, the ten dimensions of service quality for the public sector -i.e. tangibility, reliability, responsiveness, credibility, competence, understanding customers, access, security, communication, and courtesy- were all proven to form the service quality construct in the public service quality. Moreover the proposed model that depicts the relationship between public service quality, perceived value and satisfaction was also confirmed; hence provide an evaluation tool for public services in city level.

  17. 3D Skeleton model derived from Kinect Depth Sensor Camera and its application to walking style quality evaluations

    Directory of Open Access Journals (Sweden)

    Kohei Arai

    2013-07-01

    Full Text Available Feature extraction for gait recognition has been created widely. The ancestor for this task is divided into two parts, model based and free-model based. Model-based approaches obtain a set of static or dynamic skeleton parameters via modeling or tracking body components such as limbs, legs, arms and thighs. Model-free approaches focus on shapes of silhouettes or the entire movement of physical bodies. Model-free approaches are insensitive to the quality of silhouettes. Its advantage is a low computational costs comparing to model-based approaches. However, they are usually not robust to viewpoints and scale. Imaging technology also developed quickly this decades. Motion capture (mocap device integrated with motion sensor has an expensive price and can only be owned by big animation studio. Fortunately now already existed Kinect camera equipped with depth sensor image in the market with very low price compare to any mocap device. Of course the accuracy not as good as the expensive one, but using some preprocessing we can remove the jittery and noisy in the 3D skeleton points. Our proposed method is part of model based feature extraction and we call it 3D Skeleton model. 3D skeleton model for extracting gait itself is a new model style considering all the previous model is using 2D skeleton model. The advantages itself is getting accurate coordinate of 3D point for each skeleton model rather than only 2D point. We use Kinect to get the depth data. We use Ipisoft mocap software to extract 3d skeleton model from Kinect video. From the experimental results shows 86.36% correctly classified instances using SVM.

  18. Models for Checking and Evaluating MBES Data Quality%条带测深网的质量检核与评估模型

    Institute of Scientific and Technical Information of China (English)

    孙强; 李明叁; 王洪燕

    2013-01-01

    Some index models for the quality evaluation of multibeam echosounding (MBES) data are brought forward.According to hydrographic criterions,some qualitative indexes are modeled for quantitative calculation,and hence some indexes are given out for evaluating the quality of sounding data.By experimental results,it is shown that the models work well in calculating accurately the quality indexes of sounding data and do help to standardize the job to evaluate data quality.%基于实测数据,构建了条带测深网检核指标的计算模型,结合海道测量规范要求,对条带测深网某些定性指标实现了定量计算,构建了条带测深网数据质量评估指标.实际算例表明,检核指标的计算模型能够有效地反映数据的质量,有助于实现数据评估的标准化与规范化.

  19. 1994 Ergonomics Program Quality Evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Longbotham, L.; Miller, D.P.

    1995-06-01

    A telephone survey was conducted to evaluate the quality of service provided to the primary customers of the Corporate Ergonomics Group (CEG). One hundred clients who received services between October 1993 and June 1994 were asked questions on their expectations, implementation of ergonomic recommendations, follow-ups, time required, productivity improvements, symptom alleviation, and satisfaction. Suggestions on how processes could be improved were also solicited. In general, recommendations are being implemented, worksite evaluations are going smoothly, and customers are satisfied with the process. The CEG was pleased to learn that half of the people who implemented recommendations experienced improvements in productivity, and four out of five symptomatic customers experienced partial or complete relief. Through analysis of the data and by studying clients` suggestions for process improvement, the CEG has developed a strategy for changing and improving current procedures and practices. These plans can be found in the last section of this report.

  20. The Comprehensive Model for Evaluating the Effectiveness of Quality Management System%质量管理体系有效性综合评价模型

    Institute of Scientific and Technical Information of China (English)

    韩福荣; 郝进

    2000-01-01

    针对质量管理体系运行的有效性问题,运用模糊综合评价理论和灰色关联理论建立了模型,评价质量管理体系的有效性.%The certification/registration of ISO9000 based quality management system is developing continually all over the world. Meanwhile, the effectiveness of the quality management system has caused experts and scholars' interests. This essay establishes model for evaluating the effectiveness of the quality management system by using fuzzy comprehensive evaluation theory and gray relative degree analysis of gray system theory.

  1. On-line Chemistry within WRF: Description and Evaluation of a State-of-the-Art Multiscale Air Quality and Weather Prediction Model

    Energy Technology Data Exchange (ETDEWEB)

    Grell, Georg; Fast, Jerome D.; Gustafson, William I.; Peckham, Steven E.; McKeen, Stuart A.; Salzmann, Marc; Freitas, Saulo

    2010-01-01

    This is a conference proceeding that is now being put together as a book. This is chapter 2 of the book: "INTEGRATED SYSTEMS OF MESO-METEOROLOGICAL AND CHEMICAL TRANSPORT MODELS" published by Springer. The chapter title is "On-line Chemistry within WRF: Description and Evaluation of a State-of-the-Art Multiscale Air Quality and Weather Prediction Model." The original conference was the COST-728/NetFAM workshop on Integrated systems of meso-meteorological and chemical transport models, Danish Meteorological Institute, Copenhagen, May 21-23, 2007.

  2. Evaluating the quality of the Digital Elevation Models produced from ASTER stereoscopy for topographic mapping in the Brazilian Amazon Region

    Directory of Open Access Journals (Sweden)

    Cleber G. de Oliveira

    2009-06-01

    Full Text Available Brazilian Amazon is a vast territory rich in natural renewable and non-renewable resources. Due to the adverse environmental condition (rain, cloud, dense vegetation and difficult access, topographic information is still poor, and when available needs to be up-dated or remapped. In this paper, the feasibility of using elevation generated from orbital ASTER- stereo-pairs images for topographic mapping was investigated for the mountainous relief in the Serra dos Carajás, Pará. The quality of information derived from these optical images was evaluated regarding field altimetric measurements. Precise topographic field information acquired from Global Positioning System (GPS was used as Ground Control Points (GCPs for the modeling of the stereoscopic Digital Elevation Models (DEMs and as Independent Check Points (ICPs for the calculation of elevation accuracies. The analysis was performed following two approaches: (1 the use of Root Mean Square Error (RMSE and (2 calculations of trend analysis and accuracy. The investigation has shown that the altimetric accuracy from ASTER fulfilled the Brazilian Map Accuracy Standards elevation requirements for 1:100,000 A Class. In addition, ASTER can provide up-dated planimetric information that is also necessary for cartographic production. Thus, when the environment condition allows the acquisition of stereo-pairs, the use of ASTER can be considered an alternative for semi-detailed topographic mapping in similar environments of the Brazilian Amazon.A Amazônia Brasileira é um rico e vasto território em recursos naturais renováveis e nãorenováveis. Devido às condições ambientais adversas (chuvas, nuvens, vegetação densa e difícil acesso, a informação topográfica ainda é escassa, e quando disponível necessita ser atualizada ou remapeada. Neste trabalho, a viabilidade de usar elevação para mapeamento topográfico por meio de imagens estereoscópicas orbitais ASTER foi investigada para relevo

  3. Uncertainty in Air Quality Modeling.

    Science.gov (United States)

    Fox, Douglas G.

    1984-01-01

    Under the direction of the AMS Steering Committee for the EPA Cooperative Agreement on Air Quality Modeling, a small group of scientists convened to consider the question of uncertainty in air quality modeling. Because the group was particularly concerned with the regulatory use of models, its discussion focused on modeling tall stack, point source emissions.The group agreed that air quality model results should be viewed as containing both reducible error and inherent uncertainty. Reducible error results from improper or inadequate meteorological and air quality data inputs, and from inadequacies in the models. Inherent uncertainty results from the basic stochastic nature of the turbulent atmospheric motions that are responsible for transport and diffusion of released materials. Modelers should acknowledge that all their predictions to date contain some associated uncertainty and strive also to quantify uncertainty.How can the uncertainty be quantified? There was no consensus from the group as to precisely how uncertainty should be calculated. One subgroup, which addressed statistical procedures, suggested that uncertainty information could be obtained from comparisons of observations and predictions. Following recommendations from a previous AMS workshop on performance evaluation (Fox. 1981), the subgroup suggested construction of probability distribution functions from the differences between observations and predictions. Further, they recommended that relatively new computer-intensive statistical procedures be considered to improve the quality of uncertainty estimates for the extreme value statistics of interest in regulatory applications.A second subgroup, which addressed the basic nature of uncertainty in a stochastic system, also recommended that uncertainty be quantified by consideration of the differences between observations and predictions. They suggested that the average of the difference squared was appropriate to isolate the inherent uncertainty that

  4. Evaluating a microbial water quality prediction model for beach management under the revised EU Bathing Water Directive.

    Science.gov (United States)

    Bedri, Zeinab; Corkery, Aisling; O'Sullivan, John J; Deering, Louise A; Demeter, Katalin; Meijer, Wim G; O'Hare, Gregory; Masterson, Bartholomew

    2016-02-01

    The revised Bathing Water Directive (2006/7/EC) requires EU member states to minimise the risk to public health from faecal pollution at bathing waters through improved monitoring and management approaches. While increasingly sophisticated measurement methods (such as microbial source tracking) assist in the management of bathing water resources, the use of deterministic predictive models for this purpose, while having the potential to provide decision making support, remains less common. This study explores an integrated, deterministic catchment-coastal hydro-environmental model as a decision-making tool for beach management which, based on advance predictions of bathing water quality, can inform beach managers on appropriate management actions (to prohibit bathing or advise the public not to bathe) in the event of a poor water quality forecast. The model provides a 'moving window' five-day forecast of Escherichia coli levels at a bathing water compliance point off the Irish coast and the accuracy of bathing water management decisions were investigated for model predictions under two scenarios over the period from the 11th August to the 5th September, 2012. Decisions for Scenario 1 were based on model predictions where rainfall forecasts from a meteorological source (www.yr.no) were used to drive the rainfall-runoff processes in the catchment component of the model, and for Scenario 2, were based on predictions that were improved by incorporating real-time rainfall data from a sensor network within the catchment into the forecasted meteorological input data. The accuracy of the model in the decision-making process was assessed using the contingency table and its metrics. The predictive model gave reasonable outputs to support appropriate decision making for public health protection. Scenario 1 provided real-time predictions that, on 77% of instances during the study period where both predicted and E. coli concentrations were available, would correctly inform a

  5. The classified Web Qual variable is based on Kano Model for the Evaluation of customer satisfaction of internet banking service quality

    Directory of Open Access Journals (Sweden)

    Ali Shaemi Barzoki

    2012-01-01

    Full Text Available Considering the importance and position of internet banking and the growing trend of internet banking services in the country in recent years, today the financial and credit institutions and banks have found that obtaining a good position in maintaining and developing effective strategies without scientific and practical management and utilization of information and communication is not possible. Nowadays banks need to improve the quality of their internet services in order to remain competitive and in this respect, merely focusing on linear view of the relationship between customers needs fulfillment and satisfaction is not sufficient. In this paper, the application of integrated model of WebQual and Kano is studied, in which the linear perspective is adjusted. For this purpose, first the bank’s internet service quality dimensions have been determined based on the WebQual model; then, the current practice of banks has been studied and expectation and perception of customers about internet service quality has been evaluated. Considering the gap between customers’ expectations and perceptions, services have been classified into two categories of weak and strong. In the next step, service quality dimensions have been classified based on the Kano model to determine which features of internet service quality are strategically more important with respect to customer satisfaction.

  6. Use of North American and European Air Quality Networks to Evaluate Global Chemistry-Climate Modeling of Surface Ozone

    Science.gov (United States)

    Schnell, J. L.; Prather, M. J.; Josse, B.; Naik, V.; Horowitz, L. W.; Cameron-Smith, P.; Bergmann, D.; Zeng, G.; Plummer, D. A.; Sudo, K.; Nagashima, T.; Shindell, D. T.; Faluvegi, G.; Strode, S. A.

    2015-01-01

    We test the current generation of global chemistry-climate models in their ability to simulate observed, present-day surface ozone. Models are evaluated against hourly surface ozone from 4217 stations in North America and Europe that are averaged over 1 degree by 1 degree grid cells, allowing commensurate model-measurement comparison. Models are generally biased high during all hours of the day and in all regions. Most models simulate the shape of regional summertime diurnal and annual cycles well, correctly matching the timing of hourly (approximately 15:00 local time (LT)) and monthly (mid-June) peak surface ozone abundance. The amplitude of these cycles is less successfully matched. The observed summertime diurnal range (25 ppb) is underestimated in all regions by about 7 parts per billion, and the observed seasonal range (approximately 21 parts per billion) is underestimated by about 5 parts per billion except in the most polluted regions, where it is overestimated by about 5 parts per billion. The models generally match the pattern of the observed summertime ozone enhancement, but they overestimate its magnitude in most regions. Most models capture the observed distribution of extreme episode sizes, correctly showing that about 80 percent of individual extreme events occur in large-scale, multi-day episodes of more than 100 grid cells. The models also match the observed linear relationship between episode size and a measure of episode intensity, which shows increases in ozone abundance by up to 6 parts per billion for larger-sized episodes. We conclude that the skill of the models evaluated here provides confidence in their projections of future surface ozone.

  7. Evaluation of commercial compost quality.

    Science.gov (United States)

    Tomati, Umberto; Belardinelli, Monica; Andreu, Monica; Galli, Emanuela; Capitani, Donatella; Proietti, Noemi; De Simone, Claudio

    2002-10-01

    Ten commercial composts were evaluated on the basis of chemical, physical and biological characteristics and compared with a compost produced by a safe matrix in controlled conditions. FT-IR spectra, (13)C CP-MAS NMR spectra and molecular weights were also assayed on humic acids extracted from the composts. The results show that the origin of the starting materials affects the quality of the end products especially for their heavy metal content and genotoxic effect. The presence of a high percentage of low molecular weight fractions generally recorded in the humic acids from commercial composts could be due to uncorrected composting process. FT-IR and (13)C CP-MAS NMR spectra agree with functional group assignments, characterising the level of humification. The results show that commercial composts can display harmful properties probably due to the origin of the starting material, therefore a regulation about both compost production and characterisation should be suitable.

  8. Evaluation of plan quality assurance models for prostate cancer patients based on fully automatically generated Pareto-optimal treatment plans

    Science.gov (United States)

    Wang, Yibing; Breedveld, Sebastiaan; Heijmen, Ben; Petit, Steven F.

    2016-06-01

    IMRT planning with commercial Treatment Planning Systems (TPSs) is a trial-and-error process. Consequently, the quality of treatment plans may not be consistent among patients, planners and institutions. Recently, different plan quality assurance (QA) models have been proposed, that could flag and guide improvement of suboptimal treatment plans. However, the performance of these models was validated using plans that were created using the conventional trail-and-error treatment planning process. Consequently, it is challenging to assess and compare quantitatively the accuracy of different treatment planning QA models. Therefore, we created a golden standard dataset of consistently planned Pareto-optimal IMRT plans for 115 prostate patients. Next, the dataset was used to assess the performance of a treatment planning QA model that uses the overlap volume histogram (OVH). 115 prostate IMRT plans were fully automatically planned using our in-house developed TPS Erasmus-iCycle. An existing OVH model was trained on the plans of 58 of the patients. Next it was applied to predict DVHs of the rectum, bladder and anus of the remaining 57 patients. The predictions were compared with the achieved values of the golden standard plans for the rectum D mean, V 65, and V 75, and D mean of the anus and the bladder. For the rectum, the prediction errors (predicted-achieved) were only  -0.2  ±  0.9 Gy (mean  ±  1 SD) for D mean,-1.0  ±  1.6% for V 65, and  -0.4  ±  1.1% for V 75. For D mean of the anus and the bladder, the prediction error was 0.1  ±  1.6 Gy and 4.8  ±  4.1 Gy, respectively. Increasing the training cohort to 114 patients only led to minor improvements. A dataset of consistently planned Pareto-optimal prostate IMRT plans was generated. This dataset can be used to train new, and validate and compare existing treatment planning QA models, and has been made publicly available. The OVH model was highly accurate

  9. Use of North American and European air quality networks to evaluate global chemistry-climate modeling of surface ozone

    Directory of Open Access Journals (Sweden)

    J. L. Schnell

    2015-04-01

    Full Text Available We test the current generation of global chemistry-climate models in their ability to simulate observed, present-day surface ozone. Models are evaluated against hourly surface ozone from 4217 stations in North America and Europe that are averaged over 1° × 1° grid cells, allowing commensurate model-measurement comparison. Models are generally biased high during all hours of the day and in all regions. Most models simulate the shape of regional summertime diurnal and annual cycles well, correctly matching the timing of hourly (~ 15:00 and monthly (mid-June peak surface ozone abundance. The amplitude of these cycles is less successfully matched. The observed summertime diurnal range (~ 25 ppb is underestimated in all regions by about 7 ppb, and the observed seasonal range (~ 21 ppb is underestimated by about 5 ppb except in the most polluted regions where it is overestimated by about 5 ppb. The models generally match the pattern of the observed summertime ozone enhancement, but they overestimate its magnitude in most regions. Most models capture the observed distribution of extreme episode sizes, correctly showing that about 80% of individual extreme events occur in large-scale, multi-day episodes of more than 100 grid cells. The observed linear relationship showing increases in ozone by up to 6 ppb for larger-sized episodes is also matched.

  10. The daytime boundary layer in the Inn Valley - A model evaluation study with high-quality turbulence measurements

    Science.gov (United States)

    Goger, Brigitta; Rotach, Mathias W.; Gohm, Alexander; Fuhrer, Oliver; Stiperski, Ivana

    2016-04-01

    Atmospheric processes associated with complex terrain include various phenomena on the meso- and microscale, which contribute significantly to the local weather in mountainous areas of the Earth. One of the most prominent and well-known boundary-layer phenomena in mountainous terrain is the daytime valley wind circulation, which is very pronounced on clear-sky days with weak synoptic forcing. We use several chosen "valley wind days" in the Inn Valley, Austria, as case studies for the evaluation of the performance of the NWP model COSMO on a horizontal resolution of 1.1 km with a focus on boundary-layer processes and turbulent exchange. The overall goal is to evaluate the model setup and to investigate whether the model's physics schemes (initially developed for horizontally homogeneous and flat surroundings) are suitable for truly complex terrain. We evaluate the model by using measurements from the so-called "i-Box" located in the Inn Valley. The i-Box consists of six core sites that are located at representative locations in the Inn Valley, and two remote sensing systems (wind Lidar and HATPRO passive T/RH profiler) in the city of Innsbruck. The long-term data set provides a data pool of high-resolution velocity variances, turbulence variables, radiation, soil moisture, and vertical profiles of temperature, humidity, and wind in the lower troposphere, which allows a process-oriented analysis. A special focus is laid on the daytime valley boundary layer and its interaction with the developing up-valley wind. Vertical cross-sections show that the valley wind has an asymmetric structure, hence, the i-Box stations show a high spatial variability. While the station on the valley bottom and on the south-facing slope are clearly under the strong influence of the valley wind, the two stations on the north-facing slope are rather dominated by slope flows. We find that the valley wind has a strong (indirect) influence on the development of the local turbulence kinetic

  11. A Bayesian approach for evaluation of the effect of water quality model parameter uncertainty on TMDLs: A case study of Miyun Reservoir

    Energy Technology Data Exchange (ETDEWEB)

    Liang, Shidong, E-mail: emblembl@sina.com [School of Environment, Tsinghua University, 1 Qinghuayuan, Haidian District, Beijing 100084 (China); Jia, Haifeng, E-mail: jhf@tsinghua.edu.cn [School of Environment, Tsinghua University, 1 Qinghuayuan, Haidian District, Beijing 100084 (China); Xu, Changqing, E-mail: 2008changqing@163.com [School of Environment, Tsinghua University, 1 Qinghuayuan, Haidian District, Beijing 100084 (China); Xu, Te, E-mail: xt_lichking@qq.com [School of Environment, Tsinghua University, 1 Qinghuayuan, Haidian District, Beijing 100084 (China); Melching, Charles, E-mail: steve.melching17@gmail.com [Melching Water Solutions, 4030 W. Edgerton Avenue, Greenfield, WI 53221 (United States)

    2016-08-01

    ) determination. The sources of uncertainty are discussed and ways to reduce the uncertainties are proposed. - Highlights: • Effect of water quality model parameter uncertainty on TMDLs was evaluated. • A Bayesian approach was used for the model parameter uncertainty analysis. • DREAM algorithm, a multi-chain MCMC, was used as the Bayesian approach. • Miyun Reservoir, the most important drinking water source for Beijing, was studied. • Wide ranges of allowable loads were obtained through uncertainty propagation.

  12. Quality of Protection Evaluation of Security Mechanisms

    Directory of Open Access Journals (Sweden)

    Bogdan Ksiezopolski

    2014-01-01

    Full Text Available Recent research indicates that during the design of teleinformatic system the tradeoff between the systems performance and the system protection should be made. The traditional approach assumes that the best way is to apply the strongest possible security measures. Unfortunately, the overestimation of security measures can lead to the unreasonable increase of system load. This is especially important in multimedia systems where the performance has critical character. In many cases determination of the required level of protection and adjustment of some security measures to these requirements increase system efficiency. Such an approach is achieved by means of the quality of protection models where the security measures are evaluated according to their influence on the system security. In the paper, we propose a model for QoP evaluation of security mechanisms. Owing to this model, one can quantify the influence of particular security mechanisms on ensuring security attributes. The methodology of our model preparation is described and based on it the case study analysis is presented. We support our method by the tool where the models can be defined and QoP evaluation can be performed. Finally, we have modelled TLS cryptographic protocol and presented the QoP security mechanisms evaluation for the selected versions of this protocol.

  13. Evaluation of urban surface parameterizations in the WRF model using measurements during the Texas Air Quality Study 2006 field campaign

    Directory of Open Access Journals (Sweden)

    S.-H. Lee

    2010-10-01

    Full Text Available The impact of urban surface parameterizations in the WRF (Weather Research and Forecasting model on the simulation of local meteorological fields is investigated. The Noah land surface model (LSM, a modified LSM, and a single-layer urban canopy model (UCM have been compared, focusing on urban patches. The model simulations were performed for 6 days from 12 August to 17 August during the Texas Air Quality Study 2006 field campaign. Analysis was focused on the Houston-Galveston metropolitan area. The model simulated temperature, wind, and atmospheric boundary layer (ABL height were compared with observations from surface meteorological stations (Continuous Ambient Monitoring Stations, CAMS, wind profilers, the NOAA Twin Otter aircraft, and the NOAA Research Vessel Ronald H. Brown. The UCM simulation showed better results in the comparison of ABL height and surface temperature than the LSM simulations, whereas the original LSM overestimated both the surface temperature and ABL height significantly in urban areas. The modified LSM, which activates hydrological processes associated with urban vegetation mainly through transpiration, slightly reduced warm and high biases in surface temperature and ABL height. A comparison of surface energy balance fluxes in an urban area indicated the UCM reproduces a realistic partitioning of sensible heat and latent heat fluxes, consequently improving the simulation of urban boundary layer. However, the LSMs have a higher Bowen ratio than the observation due to significant suppression of latent heat flux. The comparison results suggest that the subgrid heterogeneity by urban vegetation and urban morphological characteristics should be taken into account along with the associated physical parameterizations for accurate simulation of urban boundary layer if the region of interest has a large fraction of vegetation within the urban patch. Model showed significant discrepancies in the specific meteorological

  14. A realistic approach to the evaluation of the quality management movement in health care systems: a comparison between European and African contexts based on Mintzberg's organizational models.

    Science.gov (United States)

    Blaise, P; Kegels, G

    2004-01-01

    The quality movement is gaining momentum worldwide in the field of health care. Initiated in industrialized countries, it steadily grows in Africa. However, there is no evidence that approaches designed to address issues in a given organizational context have the same effect in another one where issues present differently. Along the epistemological paradigm of realistic evaluation proposed by Pawson and Tilley, we use Mintzberg's organizational models to compare the configurations of European and African health care organizations and the trends followed by the quality management movement in both contexts. We illustrate how European health systems traditionally emphasize professional autonomy while African health systems are structured as command and control hierarchical systems. We illustrate how the quality movement in Europe emphasizes standardization of procedures, a characteristic of a mechanistic organization, while excessive standardization is part of the quality problem in Africa. We suggest that instilling professionalism may be a way forward for the quality movement in Africa to improve patient focus and responsiveness of responsible professionals. We also suggest that our interpretation of broad trends and contrasts may be used as a useful departure point to study the wide contextual diversity of the African experience with quality management.

  15. A Model for Evaluation of Information Quality in a Company (An Automotive Parts Manufacturer as a Case

    Directory of Open Access Journals (Sweden)

    Mohammad Hossein Ronaghi

    2012-03-01

    Full Text Available Every organization requires data and information to run its business and support decision making. These data and information can be obtained from many sources, internal or external organization. Wherever they come from, data and information should be free from any errors and defects to make the business run well and the decision taken from them qualified. In this article, after determination of information quality criteria, weight or importance of each criterion were calculated by utilizing fuzzy-AHP. The main conclusion from this particular study was designing a model to illustrate the information gap between current level and targeted level. The gap between those two levels could be used as guideline for improvement plan.

  16. Improving the spatial resolution of air-quality modelling at a European scale - development and evaluation of the Air Quality Re-gridder Model (AQR v1.1)

    Science.gov (United States)

    Theobald, Mark R.; Simpson, David; Vieno, Massimo

    2016-12-01

    Currently, atmospheric chemistry and transport models (ACTMs) used to assess impacts of air quality, applied at a European scale, lack the spatial resolution necessary to simulate fine-scale spatial variability. This spatial variability is especially important for assessing the impacts to human health or ecosystems of short-lived pollutants, such as nitrogen dioxide (NO2) or ammonia (NH3). In order to simulate this spatial variability, the Air Quality Re-gridder (AQR) model has been developed to estimate the spatial distributions (at a spatial resolution of 1 × 1 km2) of annual mean atmospheric concentrations within the grid squares of an ACTM (in this case with a spatial resolution of 50 × 50 km2). This is done as a post-processing step by combining the coarse-resolution ACTM concentrations with high-spatial-resolution emission data and simple parameterisations of atmospheric dispersion. The AQR model was tested for two European sub-domains (the Netherlands and central Scotland) and evaluated using NO2 and NH3 concentration data from monitoring networks within each domain. A statistical comparison of the performance of the two models shows that AQR gives a substantial improvement on the predictions of the ACTM, reducing both mean model error (from 61 to 41 % for NO2 and from 42 to 27 % for NH3) and increasing the spatial correlation (r) with the measured concentrations (from 0.0 to 0.39 for NO2 and from 0.74 to 0.84 for NH3). This improvement was greatest for monitoring locations close to pollutant sources. Although the model ideally requires high-spatial-resolution emission data, which are not available for the whole of Europe, the use of a Europe-wide emission dataset with a lower spatial resolution also gave an improvement on the ACTM predictions for the two test domains. The AQR model provides an easy-to-use and robust method to estimate sub-grid variability that can potentially be extended to different timescales and pollutants.

  17. Evaluation the Quality of Cloud Dataset from the Goddard Multi-Scale Modeling Framework for Supporting GPM Algorithm Development

    Science.gov (United States)

    Chern, J.; Tao, W.; Mohr, K. I.; Matsui, T.; Lang, S. E.

    2013-12-01

    With recent rapid advancement in computational technology, the multi-scale modeling framework (MMF) that replaces conventional cloud parameterizations with a cloud-resolving model (CRM) in each grid column of a GCM has been developed and improved at NASA Goddard. The Goddard MMF is based on the coupling of the Goddard Cumulus Ensemble (GCE), a CRM model, and the Goddard GEOS global model. In recent years, a few new and improved microphysical schemes are developed and implemented to the GCE based on observations from field campaigns. These schemes have been incorporated into the MMF. The MMF has global coverage and can provide detailed cloud properties such as cloud amount, hydrometeors types, and vertical profile of water contents at high spatial and temporal resolution of a cloud-resolving model. When coupled with the Goddard Satellite Data Simulation Unit (GSDSU), a system with multi-satellite, multi-sensor, and multi-spectrum satellite simulators, the MMF system can provide radiances and backscattering similar to what satellite directly observed. In this study, one-year (2007) MMF simulation has been performed with the new 4-ice (cloud ice, snow, graupel and hail) microphysical scheme. The GEOS global model is run at 2o x 2.5o resolution and the embedded two-dimensional GCEs each has 64 columns at 4 km horizontal resolution. The large-scale forcing from the GCM is nudged to EC-Interim analysis to reduce the influence of MMF model biases on the cloud-resolving model results. The simulation provides more than 300 millions of vertical profiles of cloud dataset in different season, geographic locations, and climate regimes. This cloud dataset is used to supplement observations over data sparse areas for supporting GPM algorithm development. The model simulated mean and variability of surface rainfall and snowfall, cloud and precipitation types, cloud properties, radiances and backscattering are evaluated against satellite observations. We will assess the strengths

  18. Regional air quality modeling: North American and European perspectives

    NARCIS (Netherlands)

    Steyn, D.; Builtjes, P.; Schaap, M.; Yarwood, G.

    2013-01-01

    An overview of regional-scale quality modeling practices and perspectives in North America and Europe, highlighting the differences and commonalities in how regional-scale air quality modeling systems are being used and evaluated across both continents

  19. Single-Risk Evaluation Model of Equipment Quality Management%装备质量管理单一风险评估模型

    Institute of Scientific and Technical Information of China (English)

    李元左; 杨晓段; 郭瑞平

    2013-01-01

    针对装备质量管理风险评估的问题,建立一种装备质量管理风险的评估模型。在装备质量管理风险指标体系的基础上,设计了适合装备质量管理风险评估的风险矩阵,将风险发生概率和风险影响后果输入到风险矩阵中,根据风险等级对照表确定单一风险等级,再由 Borda 序值法确定了单一风险的风险等级和所有风险的关键性排序,并对××大型复杂国防战略武器装备质量管理风险进行评估。实例分析的结论表明了该模型的实用性和有效性。%Aiming at risk evaluation model difficulty for equipment quality management, on the basis of risk-index system of equipment-risk management, designs a risk matrix suited for risk assessment of equipment quality management, and construct a single-risk evaluation model of equipment quality management. The probability of risk and the risk consequences inputs to the risk matrix. According to the level of risk control table to determine the single risk level, then by the Borda value key sorting method to determine the single risk and all risks, and to evaluate the ×× of large and complex defense strategic weapons and equipment quality risk management. Example analysis result shows the method is practical and effective.

  20. Evaluating evaluation: implications for assessing quality.

    Science.gov (United States)

    McCoy, M; Hargie, O D

    2001-01-01

    Aims to review the literature on evaluation and to examine research, theory and practice in relation to two key questions: What is evaluation and What is its contribution? Evaluation is increasingly a contemporary concern owing to growing demand for verification of programme results and the current political and economic climate. With the growth in evaluation activity in diverse fields, especially within new domains, those involved in health-care delivery can benefit from an overview of the universal fundamentals of research and theory that translate into improved practice. To evaluate effectively, there is a need for a full understanding of evaluation's nature, purposes and concepts. Identifies and reviews the key subdomains of evaluation, namely: definitions; theoretical underpinning; formulation of goals and objectives; specification of the programme; and cost-benefit analysis.

  1. Chemical process modelling of Underground Coal Gasification (UCG) and evaluation of produced gas quality for end use

    Science.gov (United States)

    Korre, Anna; Andrianopoulos, Nondas; Durucan, Sevket

    2015-04-01

    Underground Coal Gasification (UCG) is an unconventional method for recovering energy from coal resources through in-situ thermo-chemical conversion to gas. In the core of the UCG lays the coal gasification process which involves the engineered injection of a blend of gasification agents into the coal resource and propagating its gasification. Athough UCG technology has been known for some time and considered a promising method for unconventional fossil fuel resources exploitation, there are limited modelling studies which achieve the necessary accuracy and realistic simulation of the processes involved. This paper uses the existing knowledge for surface gasifiers and investigates process designs which could be adapted to model UCG. Steady state simulations of syngas production were developed using the Advanced System for Process ENgineering (Aspen) Plus software. The Gibbs free energy minimisation method was used to simulate the different chemical reactor blocks which were combined using a FORTRAN code written. This approach facilitated the realistic simulation of the gasification process. A number of model configurations were developed to simulate different subsurface gasifier layouts considered for the exploitation of underground coal seams. The two gasifier layouts considered here are the linked vertical boreholes and the controlled retractable injection point (CRIP) methods. Different stages of the UCG process (i.e. initialisation, intermediate, end-phase) as well as the temperature level of the syngas collection point in each layout were found to be the two most decisive and distinctive parameters during the design of the optimal model configuration for each layout. Sensitivity analyses were conducted to investigate the significance of the operational parameters and the performance indicators used to evaluate the results. The operational parameters considered were the type of reagents injected (i.e. O2, N2, CO2, H2O), the ratio between the injected reagents

  2. Evaluating Water Quality in a Suburban Environment

    Science.gov (United States)

    Thomas, S. M.; Garza, N.

    2008-12-01

    A water quality analysis and modeling study is currently being conducted on the Martinez Creek, a small catchment within Cibolo watershed, a sub-basin of the San Antonio River, Texas. Several other major creeks, such as Salatrillo, Escondido, and Woman Hollering merge with Martinez Creek. Land use and land cover analysis shows that the major portion of the watershed is dominated by residential development with average impervious cover percentage of approximately 40% along with a some of agricultural areas and brushlands. This catchment is characterized by the presence of three small wastewater treatment plants. Previous site visits and sampling of water quality indicate the presence of algae and fecal coliform bacteria at levels well above state standards at several locations in the catchment throughout the year. Due to the presence of livestock, residential development and wastewater treatment plants, a comprehensive understanding of water quality is important to evaluate the sources and find means to control pollution. As part of the study, a spatial and temporal water quality analyses of conventional parameters as well as emerging contaminants, such as veterinary pharmaceuticals and microbial pathogens is being conducted to identify critical locations and sources. Additionally, the Hydrologic Simulation Program FORTRAN (HSPF) will be used to identify best management practices that can be incorporated given the projected growth and development and feasibility.

  3. Evaluation of emission control strategies to reduce ozone pollution in the Paso del Norte region using a photochemical air quality modeling system

    Science.gov (United States)

    Valenzuela, Victor Hugo

    Air pollution emissions control strategies to reduce ozone precursor pollutants are analyzed by applying a photochemical modeling system. Simulations of air quality conditions during an ozone episode which occurred in June, 2006 are undertaken by increasing or reducing area source emissions in Ciudad Juarez, Chihuahua, Mexico. Two air pollutants are primary drivers in the formation of tropospheric ozone. Oxides of nitrogen (NOx) and volatile organic compounds (VOC) undergo multiple chemical reactions under favorable meteorological conditions to form ozone, which is a secondary pollutant that irritates respiratory systems in sensitive individuals especially the elderly and young children. The U.S. Environmental Protection Agency established National Ambient Air Quality Standards (NAAQS) to limit ambient air pollutants such as ozone by establishing an 8-hour average concentration of 0.075 ppm as the threshold at which a violation of the standard occurs. Ozone forms primarily due reactions in the troposphere of NOx and VOC emissions generated primarily by anthropogenic sources in urban regions. Data from emissions inventories indicate area sources account for ˜15 of NOx and ˜45% of regional VOC emissions. Area sources include gasoline stations, automotive paint bodyshops and nonroad mobile sources. Multiplicity of air pollution emissions sources provides an opportunity to investigate and potentially implement air quality improvement strategies to reduce emissions which contribute to elevated ozone concentrations. A baseline modeling scenario was established using the CAMx photochemical air quality model from which a series of sensitivity analyses for evaluating air quality control strategies were conducted. Modifications to area source emissions were made by varying NOx and / or VOC emissions in the areas of particular interest. Model performance was assessed for each sensitivity analysis. Normalized bias (NB) and normalized error (NE) were used to identify

  4. Evaluation of a seven-year air quality simulation using the Weather Research and Forecasting (WRF)/Community Multiscale Air Quality (CMAQ) models in the eastern United States.

    Science.gov (United States)

    Zhang, Hongliang; Chen, Gang; Hu, Jianlin; Chen, Shu-Hua; Wiedinmyer, Christine; Kleeman, Michael; Ying, Qi

    2014-03-01

    The performance of the Weather Research and Forecasting (WRF)/Community Multi-scale Air Quality (CMAQ) system in the eastern United States is analyzed based on results from a seven-year modeling study with a 4-km spatial resolution. For 2-m temperature, the monthly averaged mean bias (MB) and gross error (GE) values are generally within the recommended performance criteria, although temperature is over-predicted with MB values up to 2K. Water vapor at 2-m is well-predicted but significant biases (>2 g kg(-1)) were observed in wintertime. Predictions for wind speed are satisfactory but biased towards over-prediction with 0

  5. Comparing tools for Service Quality Evaluation

    OpenAIRE

    Franceschini, Fiorenzo

    1998-01-01

    Service quality evaluation is one of the main issues that have recently drawn managers' and researchers' attention. The definition of an evaluation standard not dependent on any particular service context has determined the popularity of many different quality tools. In this paper we show a comparative analysis of the affected tools that are widely used. These are summarized in an orientation map. Moreover we present some results of an experiment carried out with two of the major quality tool...

  6. Evaluation of a regional air-quality model with bi-directional NH3 exchange coupled to an agro-ecosystem model

    Directory of Open Access Journals (Sweden)

    J. E. Pleim

    2012-08-01

    Full Text Available Atmospheric ammonia (NH3 is the primary atmospheric base and an important precursor for inorganic particulate matter and when deposited NH3 contributes to surface water eutrophication, soil acidification and decline in species biodiversity. Flux measurements indicate that the air-surface exchange of NH3 is bi-directional. However, the effects of bi-directional exchange, soil biogeochemistry and human activity are not parameterized in air quality models. The US Environmental Protection Agency (EPA's Community Multiscale Air-Quality (CMAQ model with bi-directional NH3 exchange has been coupled with the United States Department of Agriculture (USDA's Environmental Policy Integrated Climate (EPIC agro-ecosystem model's nitrogen geochemistry algorithms. CMAQ with bi-directional NH3 exchange coupled to EPIC connects agricultural cropping management practices to emissions and atmospheric concentrations of reduced nitrogen and models the biogeochemical feedback on NH3 air-surface exchange. This coupled modeling system reduced the biases and error in NHx (NH3 + NH4+ wet deposition and in ambient aerosol concentrations in an annual 2002 Continental US (CONUS domain simulation when compared to a 2002 annual simulation of CMAQ without bi-directional exchange. Fertilizer emissions estimated in CMAQ 5.0 with bi-directional exchange exhibits markedly different seasonal dynamics than the US EPA's National Emissions Inventory (NEI, with lower emissions in the spring and fall and higher emissions in July.

  7. Designing a Model for Measuring the Quality of Educational Services of Universities and Evaluating the Quality of Educational Services of Master of Art fields in Tarbiat Moallem University in Iran by using a Designed Model

    Directory of Open Access Journals (Sweden)

    Seyed keramat Hosseini

    2012-11-01

    Full Text Available One of the influential factors on the success of all organizations and governmental and nongovernmental institutes is their customers’ satisfaction. On the other hand, one of the influential factors on the customers’ satisfaction is the quality of the given services by that organization. The educational system of the country as an organization has got so many responsibilities in the society which the most important of these responsibilities serving the high quality education. However, there are no specific methods for measuring the quality of the educational services. Therefore, the goal of this study is presentation a model for measuring the quality of the educational services. In this research we are looking for a model for measuring the quality of the educational services by considering the population including 414 of students and teachers of Tarbiat Modarres University at the time period of 2012. Accordingly, a questionnaire was made for the purpose of testing the five hypothesis of the research and finally all of them are studied based on the five aspects which should be considered for measuring the quality of the educational services including the physical appearance and facilities of the organization, reliability, the degree of responsiveness, quality assurance and the customers’ empathy or understanding. The results of the research indicate that the students’ expectations are more than their understanding in all of the five aspects of the educational services.

  8. Finger vein image quality evaluation using support vector machines

    Science.gov (United States)

    Yang, Lu; Yang, Gongping; Yin, Yilong; Xiao, Rongyang

    2013-02-01

    In an automatic finger-vein recognition system, finger-vein image quality is significant for segmentation, enhancement, and matching processes. In this paper, we propose a finger-vein image quality evaluation method using support vector machines (SVMs). We extract three features including the gradient, image contrast, and information capacity from the input image. An SVM model is built on the training images with annotated quality labels (i.e., high/low) and then applied to unseen images for quality evaluation. To resolve the class-imbalance problem in the training data, we perform oversampling for the minority class with random-synthetic minority oversampling technique. Cross-validation is also employed to verify the reliability and stability of the learned model. Our experimental results show the effectiveness of our method in evaluating the quality of finger-vein images, and by discarding low-quality images detected by our method, the overall finger-vein recognition performance is considerably improved.

  9. Evaluate Water Quality Condition of Jiaozhou Bay with Mathematical Models%利用数学模型评价胶州湾水质状况

    Institute of Scientific and Technical Information of China (English)

    李草青青

    2013-01-01

    依照2005年胶州湾水质的监测资料,采用两种数学模型方法---单因子指数法和模糊综合评价法分别进行水质现状的评价。通过计算得出结论:(1)胶州湾的东北部粪大肠菌群和无机氮超标,西北部无机氮严重超标,东南部粪大肠菌群超标,(2)采用熵权赋值法确定权重的模糊综合评价法的评价结果并不能体现水环境质量的实际情况,应该选取其他方法。%According to the monitoring data of water quality of Jiaozhou Bay in 2005 , we used two kinds of mathematical model method --- single factor index method and fuzzy comprehensive evaluation method to e-valuate water quality condition. The calculated conclusions were: (1) Fecal coliform bacteria and inorganic ni-trogen exceeded the standard in the northeast of Gulf of Jiaozhou, inorganic nitrogen seriously exceeded the standard in the northwest, fecal coliform bacteria exceed the standard in the southeast. ( 2 ) The evaluation results of fuzzy comprehensive evaluation method with the entropy weight assignment method can not reflect the actual situation of water environmental quality, so other methods should be chosen.

  10. Developing Model Assesement for Learning (AFL) to Improve Quality and Evaluation in Pragmatic Course in IAIN Surakarta

    Science.gov (United States)

    Retnaningsih, Woro; Djatmiko; Sumarlam

    2017-01-01

    The research objective is to develop a model of Assessment for Learning (AFL) in Pragmatic course in IAIN Surakarta. The research problems are as follows: How did the lecturer develop a model of AFL? What was the form of assessment information used as the model of AFL? How was the results of the implementation of the model of assessment. The…

  11. Evaluation of the Community Multiscale Air Quality Model for Simulating Winter Ozone Formation in the Uinta Basin

    Science.gov (United States)

    Areas with close proximity to oil and natural gas operations in rural Utah have experienced winter ozone levels that exceed EPA’s National Ambient Air Quality Standards (NAAQS). Through a collaborative effort, EPA Region 8 – Air Program, ORD, and OAQPS used the Commun...

  12. The IIR evaluation model

    DEFF Research Database (Denmark)

    Borlund, Pia

    2003-01-01

    An alternative approach to evaluation of interactive information retrieval (IIR) systems, referred to as the IIR evaluation model, is proposed. The model provides a framework for the collection and analysis of IR interaction data. The aim of the model is two-fold: 1) to facilitate the evaluation...... assessments. The IIR evaluation model is presented as an alternative to the system-driven Cranfield model (Cleverdon, Mills & Keen, 1966; Cleverdon & Keen, 1966) which still is the dominant approach to the evaluation of IR and IIR systems. Key elements of the IIR evaluation model are the use of realistic...... of IIR systems as realistically as possible with reference to actual information searching and retrieval processes, though still in a relatively controlled evaluation environment; and 2) to calculate the IIR system performance taking into account the non-binary nature of the assigned relevance...

  13. Quality and Research Evaluation in Organizations

    DEFF Research Database (Denmark)

    Hansson, Finn

    A central issue in science policy today is the changing role and function ofresearch evaluation. How is quality selected, has local organizational traditionsand managerial practices influence on the research evaluation? Who isperceived as peers or evaluators by the researchers and by managers...

  14. Methodology for Evaluating Quality and Reusability of Learning Objects

    Science.gov (United States)

    Kurilovas, Eugenijus; Bireniene, Virginija; Serikoviene, Silvija

    2011-01-01

    The aim of the paper is to present the scientific model and several methods for the expert evaluation of quality of learning objects (LOs) paying especial attention to LOs reusability level. The activities of eQNet Quality Network for a European Learning Resource Exchange (LRE) aimed to improve reusability of LOs of European Schoolnet's LRE…

  15. Development of a high-resolution emission inventory and its evaluation and application through air quality modeling for Jiangsu Province, China

    Science.gov (United States)

    Zhao, Yu; Zhou, Yaduan; Mao, Pan; Zhang, Jie

    2017-04-01

    Improved emission inventories combining detailed source information are crucial for better understanding the atmospheric chemistry and effectively making emission control policies using air quality simulation, particularly at regional or local scales. With the downscaled inventories directly applied, chemical transport model might not be able to reproduce the authentic evolution of atmospheric pollution processes at small spatial scales. Using the bottom-up approach, a high-resolution emission inventory was developed for Jiangsu China, including SO2, NOx, CO, NH3, volatile organic compounds (VOCs), total suspended particulates (TSP), PM10, PM2.5, black carbon (BC), organic carbon (OC), and CO2. The key parameters relevant to emission estimation for over 6000 industrial sources were investigated, compiled and revised at plant level based on various data sources and on-site survey. As a result, the emission fractions of point sources were significantly elevated for most species. The improvement of this provincial inventory was evaluated through comparisons with other inventories at larger spatial scales, using satellite observation and air quality modeling. Compared to the downscaled Multi-resolution Emission Inventory for China (MEIC), the spatial distribution of NOX emissions in our provincial inventory was more consistent with summer tropospheric NO2 VCDs observed from OMI, particularly for the grids with moderate emission levels, implying the improved emission estimation for small and medium industrial plants by this work. Three inventories (national, regional, and provincial by this work) were applied in the Models-3/Community Multi-scale Air Quality (CMAQ) system for southern Jiangsu October 2012, to evaluate the model performances with different emission inputs. The best agreement between available ground observation and simulation was found when the provincial inventory was applied, indicated by the smallest normalized mean bias (NMB) and normalized mean

  16. Development of a high-resolution emission inventory and its evaluation and application through air quality modeling for Jiangsu Province, China

    Science.gov (United States)

    Zhou, Yaduan; Zhao, Yu; Mao, Pan; Zhang, Qiang; Zhang, Jie; Qiu, Liping; Yang, Yang

    2017-01-01

    Improved emission inventories combining detailed source information are crucial for better understanding of the atmospheric chemistry and effectively making emission control policies using air quality simulation, particularly at regional or local scales. With the downscaled inventories directly applied, chemical transport models might not be able to reproduce the authentic evolution of atmospheric pollution processes at small spatial scales. Using the bottom-up approach, a high-resolution emission inventory was developed for Jiangsu China, including SO2, NOx, CO, NH3, volatile organic compounds (VOCs), total suspended particulates (TSP), PM10, PM2.5, black carbon (BC), organic carbon (OC), and CO2. The key parameters relevant to emission estimation for over 6000 industrial sources were investigated, compiled, and revised at plant level based on various data sources and on-site surveys. As a result, the emission fractions of point sources were significantly elevated for most species. The improvement of this provincial inventory was evaluated through comparisons with other inventories at larger spatial scales, using satellite observation and air quality modeling. Compared to the downscaled Multi-resolution Emission Inventory for China (MEIC), the spatial distribution of NOx emissions in our provincial inventory was more consistent with summer tropospheric NO2 VCDs observed from OMI, particularly for the grids with moderate emission levels, implying the improved emission estimation for small and medium industrial plants by this work. Three inventories (national, regional, and provincial by this work) were applied in the Models-3 Community Multi-scale Air Quality (CMAQ) system for southern Jiangsu October 2012, to evaluate the model performances with different emission inputs. The best agreement between available ground observation and simulation was found when the provincial inventory was applied, indicated by the smallest normalized mean bias (NMB) and normalized

  17. Evaluation of the Community Multiscale Air Quality (CMAQ model v5.0 against size-resolved measurements of inorganic particle composition across sites in North America

    Directory of Open Access Journals (Sweden)

    C. G. Nolte

    2015-05-01

    Full Text Available This work evaluates particle size-composition distributions simulated by the Community Multiscale Air Quality (CMAQ model using Micro-Orifice Uniform Deposit Impactor (MOUDI measurements at 18 sites across North America. Size-resolved measurements of particulate SO42−, NO3−, NH4+, Na+, Cl−, Mg2+, Ca2+ and K+ are compared to CMAQ model output for discrete sampling periods between 2002 and 2005. The observation sites were predominantly in remote areas (e.g. National Parks in the United States and Canada, and measurements were typically made for a period of roughly one month. For SO42− and NH4+, model performance was consistent across the US and Canadian sites, with the model slightly overestimating the peak particle diameter and underestimating the peak particle concentration compared to the observations. Na+ and Mg2+ size distributions were generally well represented at coastal sites, indicating reasonable simulation of emissions from sea spray. CMAQ is able to simulate the displacement of Cl− in aged sea spray aerosol, though the extent of Cl− depletion relative to Na+ is often underpredicted. The model performance for NO3− exhibited much more site-to-site variability than that of SO42− and NH4+, with the model ranging from an underestimation to overestimation of both the peak diameter and peak particle concentration across the sites. Computing PM2.5 from the modeled size distribution parameters rather than by summing the masses in the Aitken and accumulation modes resulted in differences in daily averages of up to 1 μg m−3 (10%, while the difference in seasonal and annual model performance compared to observations from the IMPROVE, CSN and AQS networks was very small. Two updates to the CMAQ aerosol model – changes to the assumed size and mode width of emitted particles and the implementation of gravitational settling – resulted in small improvements in modeled size distributions.

  18. Quality measures for nurse practitioner practice evaluation.

    Science.gov (United States)

    Kleinpell, Ruth; Kapu, April N

    2017-08-01

    Evaluating the impact of nurse practitioner (NP) practice has become a priority area of focus for demonstrating outcomes. A number of quality measures are available to enable practice-specific evaluation of NP roles and initiatives. This article reviews sources of quality measures that can be used to facilitate quantifying the outcomes of NP practice as part of an overall evaluation agenda. National resources and published literature on NP quality measures were reviewed. Various resources and toolkits exist to assist NPs in identifying outcomes of practice using quality measures. The need to demonstrate outcomes of NP practice remains an ongoing priority area regardless of the clinical practice setting. A variety of sources of quality measures exist that can be used to showcase the effect of NP care. The use of quality measures can be effectively integrated into evaluation of NP role and NP-directed initiatives to demonstrate impact, and enhance the conduct of an NP outcomes assessment. The use of organizational, NP-specific, and national-related quality measures can help to showcase how NP care improves the quality, safety, and costs of health care. ©2017 American Association of Nurse Practitioners.

  19. Process perspective on image quality evaluation

    Science.gov (United States)

    Leisti, Tuomas; Halonen, Raisa; Kokkonen, Anna; Weckman, Hanna; Mettänen, Marja; Lensu, Lasse; Ritala, Risto; Oittinen, Pirkko; Nyman, Göte

    2008-01-01

    The psychological complexity of multivariate image quality evaluation makes it difficult to develop general image quality metrics. Quality evaluation includes several mental processes and ignoring these processes and the use of a few test images can lead to biased results. By using a qualitative/quantitative (Interpretation Based Quality, IBQ) methodology, we examined the process of pair-wise comparison in a setting, where the quality of the images printed by laser printer on different paper grades was evaluated. Test image consisted of a picture of a table covered with several objects. Three other images were also used, photographs of a woman, cityscape and countryside. In addition to the pair-wise comparisons, observers (N=10) were interviewed about the subjective quality attributes they used in making their quality decisions. An examination of the individual pair-wise comparisons revealed serious inconsistencies in observers' evaluations on the test image content, but not on other contexts. The qualitative analysis showed that this inconsistency was due to the observers' focus of attention. The lack of easily recognizable context in the test image may have contributed to this inconsistency. To obtain reliable knowledge of the effect of image context or attention on subjective image quality, a qualitative methodology is needed.

  20. Evaluation of life quality after apicoectomy

    OpenAIRE

    Dimova, Cena; Kovacevska, Ivona; Papakoca, Kiro

    2013-01-01

    AIM. The aim of this study was to evaluate patient experience of quality of life following apicoectomy using two different techniques: preoperative and intra operative ortograde canal opturation. MATERIAL AND METHOD. The study consisted of 40 patients referred for oral surgical treatment (apicectomy with periapical osteotomy). All patients were given a questionnaire with 15 questions to evaluate their quality of life for 7 days after the oral surgery interventions. RESULTS. The average ti...

  1. Aerosols in the CALIOPE air quality modelling system: evaluation and analysis of PM levels, optical depths and chemical composition over Europe

    Directory of Open Access Journals (Sweden)

    S. Basart

    2012-04-01

    Full Text Available The CALIOPE air quality modelling system is developed and applied to Europe with high spatial resolution (12 km × 12 km. The modelled daily-to-seasonal aerosol variability over Europe in 2004 is evaluated and analysed. Aerosols are estimated from two models, CMAQv4.5 (AERO4 and BSC-DREAM8b. CMAQv4.5 calculates biogenic, anthropogenic and sea salt aerosol and BSC-DREAM8b provides the natural mineral dust contribution from North African deserts. For the evaluation, we use daily PM10, PM2.5 and aerosol components data from 55 stations of the EMEP/CREATE network and total, coarse and fine aerosol optical depth (AOD data from 35 stations of the AERONET sun photometer network. Annual correlations between modelled and observed values for PM10 and PM2.5 are 0.55 and 0.47, respectively. Correlations for total, coarse and fine AOD are 0.51, 0.63, and 0.53, respectively. The higher correlations of the PM10 and the coarse mode AOD are largely due to the accurate representation of the African dust influence in the forecasting system. Overall PM and AOD levels are underestimated. The evaluation of the aerosol components highlights underestimations in the fine fraction of carbonaceous matter (EC and OC and secondary inorganic aerosols (SIA; i.e. nitrate, sulphate and ammonium. The scores of the bulk parameters are significantly improved after applying a simple model bias correction based on the observed aerosol composition. The simulated PM10 and AOD present maximum values over the industrialized and populated Po Valley and Benelux regions. SIA are dominant in the fine fraction representing up to 80% of the aerosol budget in latitudes north of 40° N. In southern Europe, high PM10 and AOD are linked to the desert dust transport from the Sahara which contributes up to 40% of the aerosol budget. Maximum seasonal ground-level concentrations (PM10 > 30 μg m−3 are

  2. Evaluation of the Community Multiscale Air Quality (CMAQ model v5.0 against size-resolved measurements of inorganic particle composition across sites in North America

    Directory of Open Access Journals (Sweden)

    C. G. Nolte

    2015-09-01

    Full Text Available This work evaluates particle size–composition distributions simulated by the Community Multiscale Air Quality (CMAQ model using micro-orifice uniform deposit impactor (MOUDI measurements at 18 sites across North America. Size-resolved measurements of particulate SO42−, NO3−, NH4+, Na+, Cl−, Mg2+, Ca2+, and K+ are compared to CMAQ model output for discrete sampling periods between 2002 and 2005. The observation sites were predominantly in remote areas (e.g., National Parks in the USA and Canada, and measurements were typically made for a period of roughly 1 month. For SO42− and NH4+, model performance was consistent across the USA and Canadian sites, with the model slightly overestimating the peak particle diameter and underestimating the peak particle concentration compared to the observations. Na+ and Mg2+ size distributions were generally well represented at coastal sites, indicating reasonable simulation of emissions from sea spray. CMAQ is able to simulate the displacement of Cl− in aged sea spray aerosol, though the extent of Cl− depletion relative to Na+ is often underpredicted. The model performance for NO3− exhibited much more site-to-site variability than that of SO42− and NH4+, with the model ranging from an underestimation to overestimation of both the peak diameter and peak particle concentration across the sites. Computing PM2.5 from the modeled size distribution parameters rather than by summing the masses in the Aitken and accumulation modes resulted in differences in daily averages of up to 1 μg m−3 (10 %, while the difference in seasonal and annual model performance compared to observations from the Interagency Monitoring of Protected Visual Environments (IMPROVE, Chemical Speciation Network (CSN, and Air Quality System (AQS networks was very small. Two updates to the CMAQ aerosol model – changes to the assumed size and mode width of emitted particles and the implementation of gravitational settling

  3. Water Quality-Quantity Evaluation of the Ribeirão das Posses Watershed, Brazil, applying the AgES-W model.

    Science.gov (United States)

    Green, T. R.; Cruz, P. P. N. D.; Figueiredo, R. D. O.; Camargo, P. B. D.; Santos, C. P.

    2015-12-01

    Southeastern Brazil is under a period of drought that has impacted the conservation of watersheds and the management of water quality and quantity for agricultural and urban demands. In this context agro-hydrological modeling tools can generate information of water response over time in response to climate and landuse changes. A 12-km2 watershed which has suffered from anthropogenic activities is the Ribeirão das Posses watershed that is located in the extreme south of Minas Gerais State and is a headwater catchment of the Jaguari river, one of the contributing rivers of the Cantareira Reservoir Complex in the state of São Paulo. This watershed had its landscape changed over the last century from native forests to more homogeneous vegetation for pastures and small crops and some forest plantations fragments with eucalyptus. Currently, the Conservative Waters project has planted some small areas with vegetation of native species, especially where there are springs and at the top of the hills, in order to recover degraded areas and improve the hydrogeochemistry in this study basin. In this context, the AgroEcoSystem-Watershed (AgES-W) model is presented to simulate the water movement and storage in agricultural watersheds with different spatial resolutions of land areas or hydrological responses units. The objectives are to evaluate the quality and quantity of water in Ribeirão das Posses Basin using measured data, then simulate these responses in space and time to test the AgES-W model. The period chosen for research was from 2011 to 2015, because the water quality data were collected during this period. The answers that we hope to find out are: How well does the AgES-W model simulate this Brazilian watershed in the tropics? What are the future prospects of the quality and quantity of water in this basin? The results will help to guide hydrological simulations in similar tropical environments in Brazil in this and other agricultural watersheds with AgES-W.

  4. Model based monitoring of stormwater runoff quality

    DEFF Research Database (Denmark)

    Birch, Heidi; Vezzaro, Luca; Mikkelsen, Peter Steen

    2012-01-01

    the information obtained about MPs discharged from the monitored system. A dynamic stormwater quality model was calibrated using MP data collected by volume-proportional and passive sampling in a storm drainage system in the outskirts of Copenhagen (Denmark) and a 10-year rain series was used to find annual......) for calibration of the model resulted in the same predicted level but narrower model prediction bounds than calibrations based on volume-proportional samples, allowing a better exploitation of the resources allocated for stormwater quality management.......Monitoring of micropollutants (MP) in stormwater is essential to evaluate the impacts of stormwater on the receiving aquatic environment. The aim of this study was to investigate how different strategies for monitoring of stormwater quality (combination of model with field sampling) affect...

  5. 糙米储藏品质评价数学模型的建立%ESTABLISHMENT OF MATHEMATICAL MODEL FOR EVALUATING BROWN RICE STORAGE QUALITY

    Institute of Scientific and Technical Information of China (English)

    张玉荣; 贾少英; 周显青

    2011-01-01

    为对糙米储藏过程中的劣变进行及时调控,选用2个粳糙米样品,测定不同储藏条件下的脂肪酸值、发芽率、生活力、电导率、降落数值等生理生化指标,进行各指标间的相关性分析,采用灰色关联度分析法对各项指标进行储藏品质敏感指标的筛选,并以各项敏感指标为自变量,以碾磨后的大米食味值为因变量,采用逐步回归的方法建立敏感指标与糙米最终食味值间的数学模型.结果表明:脂肪酸值、电导率对粳糙米储藏品质有显著影响,其中脂肪酸值对储藏品质敏感度最大,电导率次之;辽星糙米储藏品质评价的数学模型为y =92.57 +0.83X脂肪酸值-2.08X电导率,盐丰糙米储藏品质评价的数学模型为Y=-99.42+4.03X脂肪酸值-1.44X电导率.%In order to control the deterioration during brown rice storage, the paper selected two Japonica brown rice samples (liaoxing and yanfeng) to measure the physiological and biochemical indexes under different storage conditions, such as fatty acid value, germination rate, viability, electrical conductivity and falling number, and analyzed the correlation among the indexes. The storage quality sensitive indexes were screened by using grey correlative degree analysis method, and a mathematical mode was established by a gradual regression method selecting the sensitive indexes as the independent variables and the taste value of the milled rice as dependent variables. The results showed that the fatty acid value and the electrical conductivity had significant influences on the storage quality of brown rice, wherein the storage quality evaluation model of liaoxing was F=92.57+0.83X 2.08Z (dearicai Otduoivity); and the storage quality evaluation model of yanfeng was F-99.42+4.03A' (Wy1-44A (eleoricai conductivity)-

  6. Data envelopment analysis in service quality evaluation: an empirical study

    Science.gov (United States)

    Najafi, Seyedvahid; Saati, Saber; Tavana, Madjid

    2015-10-01

    Service quality is often conceptualized as the comparison between service expectations and the actual performance perceptions. It enhances customer satisfaction, decreases customer defection, and promotes customer loyalty. Substantial literature has examined the concept of service quality, its dimensions, and measurement methods. We introduce the perceived service quality index (PSQI) as a single measure for evaluating the multiple-item service quality construct based on the SERVQUAL model. A slack-based measure (SBM) of efficiency with constant inputs is used to calculate the PSQI. In addition, a non-linear programming model based on the SBM is proposed to delineate an improvement guideline and improve service quality. An empirical study is conducted to assess the applicability of the method proposed in this study. A large number of studies have used DEA as a benchmarking tool to measure service quality. These models do not propose a coherent performance evaluation construct and consequently fail to deliver improvement guidelines for improving service quality. The DEA models proposed in this study are designed to evaluate and improve service quality within a comprehensive framework and without any dependency on external data.

  7. Evaluation of a novel thermosensitive heparin-poloxamer hydrogel for improving vascular anastomosis quality and safety in a rabbit model.

    Directory of Open Access Journals (Sweden)

    Ying-Zheng Zhao

    Full Text Available Despite progress in the design of advanced surgical techniques, stenosis recurs in a large percentage of vascular anastomosis. In this study, a novel heparin-poloxamer (HP hydrogel was designed and its effects for improving the quality and safety of vascular anastomosis were studied. HP copolymer was synthesized and its structure was confirmed by Fourier transform infrared spectroscopy (FTIR and nuclear magnetic resonance spectroscopy ((1H-NMR. Hydrogels containing HP were prepared and their important characteristics related to the application in vascular anastomosis including gelation temperature, rheological behaviour and micromorphology were measured. Vascular anastomosis were performed on the right common carotid arteries of rabbits, and the in vivo efficiency and safety of HP hydrogel to achieve vascular anastomosis was verified and compared with Poloxamer 407 hydrogel and the conventional hand-sewn method using Doppler ultrasound, CT angiograms, scanning electron microscopy (SEM and histological technique. Our results showed that HP copolymer displayed special gel-sol-gel phase transition behavior with increasing temperature from 5 to 60 °C. HP hydrogel prepared from 18 wt% HP solution had a porous sponge-like structure, with gelation temperature at approximately 38 °C and maximum elastic modulus at 10,000 Pa. In animal studies, imaging and histological examination of rabbit common jugular artery confirmed that HP hydrogel group had similar equivalent patency, flow and burst strength as Poloxamer 407 group. Moreover, HP hydrogel was superior to poloxamer 407 hydrogel and hand-sewn method for restoring the functions and epithelial structure of the broken vessel junctions after operation. By combining the advantages of heparin and poloxamer 407, HP hydrogel holds high promise for improving vascular anastomosis quality and safety.

  8. Application of Immune Algorithm to Evaluation of Soil Resource Quality

    Institute of Scientific and Technical Information of China (English)

    YANG Hai-Dong; HU Yue-Ming; DENG Fei-Qi; CHEN Fei-Xiang; WANG Fei

    2005-01-01

    Based on the geographic information system (GIS) technology, ArcInfo software was adopted to collect, process and analyze spatial data of Guangdong Province for an evaluation of soil resource quality. The overlay analysis method was used in combining evaluation factors of Guangdong soil resource quality to determine the evaluation units. Because of its favorable convergent speed and its ability to search solutions, the immune algorithm was applied to the soil resource quality evaluation model. At the same time, the evaluation results of this newly proposed method were compared to two other methods: sum of index and fuzzy synthetic. The results indicated that the immune algorithm reflected the actual condition of soil resource quality more exactly.

  9. Evaluation of the measurement model and clinically important differences for menopause-specific quality of life associated with bazedoxifene/conjugated estrogens.

    Science.gov (United States)

    Bushmakin, Andrew G; Abraham, Lucy; Pinkerton, JoAnn V; Cappelleri, Joseph C; Mirkin, Sebastian

    2014-08-01

    This study aims to confirm the factor structure of the Menopause-Specific Quality of Life (MENQOL) questionnaire by using confirmatory factor analysis (CFA) and to determine whether improvements in menopause-specific health-related quality of life (HRQOL) observed with bazedoxifene (BZA)/conjugated estrogens (CE) relative to placebo are clinically meaningful. Postmenopausal women with seven or more moderate to severe hot flushes per day (or ≥50 per wk) received BZA 20 mg/CE 0.45 mg, BZA 20 mg/CE 0.625 mg, or placebo for 12 weeks. HRQOL and treatment satisfaction were evaluated using the MENQOL questionnaire and the Menopause Symptoms Treatment Satisfaction Questionnaire, respectively. The structure of the MENQOL questionnaire was evaluated using CFA. To estimate clinically important differences (CIDs) in HRQOL, we used a repeated-measures model to estimate changes in MENQOL domain and total scores using Menopause Symptoms Treatment Satisfaction Questionnaire items as anchors. The CFA model fits the MENQOL data (Bentler's comparative fit index >0.9). CID estimates ranged from 0.5 to 1.2 for the MENQOL domains and total score. Change from baseline in MENQOL vasomotor domain score for BZA 20 mg/CE 0.45 mg and BZA 20 mg/CE 0.625 mg compared with placebo was greater than the estimated CID, as were changes in MENQOL physical domain and total scores for BZA 20 mg/CE 0.625 mg compared with placebo. CFA confirms the factor structure of the MENQOL questionnaire. Treatment with BZA/CE provides clinically meaningful improvements in HRQOL in a population of postmenopausal women with bothersome vasomotor symptoms.

  10. Model based monitoring of stormwater runoff quality

    DEFF Research Database (Denmark)

    Birch, Heidi; Vezzaro, Luca; Mikkelsen, Peter Steen

    2012-01-01

    Monitoring of micropollutants (MP) in stormwater is essential to evaluate the impacts of stormwater on the receiving aquatic environment. The aim of this study was to investigate how different strategies for monitoring of stormwater quality (combination of model with field sampling) affect...... the information obtained about MPs discharged from the monitored system. A dynamic stormwater quality model was calibrated using MP data collected by volume-proportional and passive sampling in a storm drainage system in the outskirts of Copenhagen (Denmark) and a 10-year rain series was used to find annual...

  11. Neural Networks Model of Evaluation of Comprehensive Quality and Simulink Implementation%综合素质评价的神经网络模型及Simulink实现

    Institute of Scientific and Technical Information of China (English)

    王宁; 孙晓玲; 梁艳

    2011-01-01

    针对大学生综合素质评价过程中存在诸多非定量因素及非线性特征,建立综合素质测评的BP神经网络模型。利用BP神经网络实现对量化评价函数的逼近。所给出的神经网络模型较已有的评价体系具有更高的执行效率,而且还能生成模块化的程序进行推广。利用Matlab软件的Simulink平台对BP神经网络进行仿真计算,该方法可操作性强,不需要进行模糊评测方法过程中的复杂运算,具有较广泛的实用性。%Aiming at the existence of many non-quantitative {actor and the nonlinear characteristics of evalu- ating the comprehensive quality of college students, a BP neural network model of evaluation has been built in this paper. The measured function has been approximated by using BP neural network. The pro- posed model has a higher efficiency than that of existing evaluation system, and can be generalized to pro- duce modularized programs. The method of simulating calculation of BP neural network has strong opera- bility. Owing to no need of complex operation during fuzzy evaluation, the method has wide practicability.

  12. Evaluation of US and UK Models in Simulating the Impact of Barriers on Near-Road Air Quality

    Science.gov (United States)

    The possibility that roadside noise barriers can act to mitigate traffic-related air pollution exposures for people living and working near major roadways is being considered in the context of public health protection. Air pollution dispersion models that can accurately simulate ...

  13. Application of Group-Level Item Response Models in the Evaluation of Consumer Reports about Health Plan Quality

    Science.gov (United States)

    Reise, Steven P.; Meijer, Rob R.; Ainsworth, Andrew T.; Morales, Leo S.; Hays, Ron D.

    2006-01-01

    Group-level parametric and non-parametric item response theory models were applied to the Consumer Assessment of Healthcare Providers and Systems (CAHPS[R]) 2.0 core items in a sample of 35,572 Medicaid recipients nested within 131 health plans. Results indicated that CAHPS responses are dominated by within health plan variation, and only weakly…

  14. Evaluation of stream water quality data generated from MODIS images in modeling total suspended solid emission to a freshwater lake.

    Science.gov (United States)

    Ayana, Essayas K; Worqlul, Abeyou W; Steenhuis, Tammo S

    2015-08-01

    Modeling of suspended sediment emission into freshwater lakes is challenging due to data gaps in developing countries. Existing models simulate sediment concentration at a gauging station upstream and none of these studies had modeled total suspended solids (TSS) emissions by inflowing rivers to freshwater lakes as there are no TSS measurements at the river mouth in the upper Blue Nile basin. In this study a 10year TSS time series data generated from remotely sensed MODIS/Terra images using established empirical relationship is applied to calibrate and validate a hydrology model for Lake Tana in Upper Blue Nile Basin. The result showed that at a monthly time scale TSS at the river mouth can be replicated with Nash-Sutcliffe efficiency (NS) of 0.34 for calibration and 0.21 for validation periods. Percent bias (PBIAS) and ratio of the root-mean-square error to the standard deviation of measured data (RSR) are all within range. Given the inaccessibility and costliness to measure TSS at river mouths to a lake the results found here are considered useful for suspended sediment budget studies in water bodies of the basin. Copyright © 2015 Elsevier B.V. All rights reserved.

  15. Vocational School Students' Quality Evaluation Model based on Fuzzy Comprehensive Evaluation Method%基于模糊综合评判法的高职学生素质评价模型

    Institute of Scientific and Technical Information of China (English)

    罗道宝

    2012-01-01

    Scientific and rational, objective and fair assessment of the quality of vocational students, is to comprehensively promote quality education facing an important issue. Based on the characteristics of vocational students the factors that affect the quality of students is attributed to the moral, intellectual, six aspects of the physical, mental, vocational skills, interpersonal communication, innovation, build quality evaluation system for vocational students on the basis of the empirical method to weight of various factors, and then use fuzzy comprehensive evaluation method to establish the mathematical model, and then by case analysis to verify the feasibility of the model. This model not only has the role of identification, diagnosis, and sorting, both oriented and incentive functions.%科学合理、客观公正地评价高职学生的素质,是全面推进素质教育所面临的一个重要问题.本文根据高职学生的特点将影响学生素质的因素归结为德育、智育、身心、职业技能、人际沟通、创新六个方面,在建立高职学生综合素质评价体系的基础上,使用模糊综合评判法建立数学模型,进而通过实例分析验证了模型的可行性.本模型既具有鉴定、诊断和排序的作用,又兼具导向和激励的功能.

  16. Consumer Evaluations of Food Risk Management Quality in Europe

    NARCIS (Netherlands)

    Kleef, van E.; Houghton, J.R.; Krystallis, A.; Pfenning, U.; Rowe, G.; Dijk, van H.; Lans, van der I.A.; Frewer, L.J.

    2007-01-01

    In developing and implementing appropriate food risk management strategies, it is important to understand how consumers evaluate the quality of food risk management practices. The aim of this study is to model the underlying psychological factors influencing consumer evaluations of food risk managem

  17. Module-based quality system functionality evaluation in production logistics

    Energy Technology Data Exchange (ETDEWEB)

    Khabbazi, M.R.; Wikander, J.; Onori, M.; Maffei, A.; Chen, D.

    2016-07-01

    This paper addresses a comprehensive modeling and functionality evaluation of a module-based quality system in production logistics at the highest domain abstract level of business processes. All domain quality business processes and quality data transactions are modeled using BPMN and UML tools and standards at the business process and data modeling. A modular web-based prototype is developed to evaluate the models addressing the quality information system functionality requirements and modularity in production logistics through data scenarios and data queries. Using the object-oriented technique in design at the highest domain level, the proposed models are subject further development in the lower levels for the implementing case. The models are specifically able to manipulate all quality operations including remedy and control in a lot-based make-to-order production logistics system as an individual module. Due to the specification of system as domain design structure, all proposed BPMs, data models, and the actual database prototype are seen referential if not a solution as a practical “to-be” quality business process re-engineering template. This paper sets out to provide an explanatory approach using different practical technique at modeling steps as well as the prototype implementation. (Author)

  18. ONTOLOGY BASED QUALITY EVALUATION FOR SPATIAL DATA

    Directory of Open Access Journals (Sweden)

    C. Yılmaz

    2015-08-01

    Full Text Available Many institutions will be providing data to the National Spatial Data Infrastructure (NSDI. Current technical background of the NSDI is based on syntactic web services. It is expected that this will be replaced by semantic web services. The quality of the data provided is important in terms of the decision-making process and the accuracy of transactions. Therefore, the data quality needs to be tested. This topic has been neglected in Turkey. Data quality control for NSDI may be done by private or public “data accreditation” institutions. A methodology is required for data quality evaluation. There are studies for data quality including ISO standards, academic studies and software to evaluate spatial data quality. ISO 19157 standard defines the data quality elements. Proprietary software such as, 1Spatial’s 1Validate and ESRI’s Data Reviewer offers quality evaluation based on their own classification of rules. Commonly, rule based approaches are used for geospatial data quality check. In this study, we look for the technical components to devise and implement a rule based approach with ontologies using free and open source software in semantic web context. Semantic web uses ontologies to deliver well-defined web resources and make them accessible to end-users and processes. We have created an ontology conforming to the geospatial data and defined some sample rules to show how to test data with respect to data quality elements including; attribute, topo-semantic and geometrical consistency using free and open source software. To test data against rules, sample GeoSPARQL queries are created, associated with specifications.

  19. Particle Concentrations Inside a Tavern Before and After Prohibition of Smoking: Evaluating the Performance of an Indoor Air Quality Model.

    Science.gov (United States)

    Ott, Wayne; Switzer, Paul; Robinson, John

    1996-12-01

    Measurements were made of respirable suspended particles (RSP) in a large sports tavern on 26 dates over approximately two years in which smoking was allowed, followed by measurements on 50 dates during the year after smoking was prohibited. The smoking prohibition occurred without warning when the city government passed a regulation restricting smoking in local restaurants and taverns. Two follow-up field surveys, consisting of 24 and 26 visits, respectively, were conducted to measure changes in RSP levels after smoking was prohibited. No decrease in tavern attendance was evident after smoking was prohibited. During the smoking period, the average RSP concentration was 56.8 |ig/m3 above the outdoor concentrations, but the average abruptly dropped to 5.9 ug/m3 above outdoor levels-a 90% decrease- on 24 visits in the first two months immediately after smoking was prohibited (first follow-up study). A second set of 26 follow-up visits (matched by time of day, day of the week, and season to the earlier smoking visits) yielded an average concentration of 12.9 jig/m3 above the outdoor levels, or an overall decrease in the average RSP concentration of 77% compared with the smoking period. During the smoking period, RSP concentrations more than 100 ug/m3 above outdoor levels occurred on 30.7% of the visits. During the 50 nonsmoking visits, 92% of the RSP concentrations were less than 20 u,g/m3 above outdoor levels, and no concentration exceeded 100 ug/m3 on any nonsmoking visit. The data show there was a striking decline in indoor RSP concentrations in the tavern after smoking was prohibited. The indoor concentration observed in the nonsmoking periods (9.1 u.g/m3 average for all nonsmoking visits) was attributed to cooking and resuspended dust. A mathematical model based on the mass balance equation was developed that included smoking, cooking, and resuspended dust. Using cigarette emission rates from the literature, the tavern volume of 521 m3, and the air exchange rate

  20. Evaluation of Nutritional Quality of Dried Cashew Nut Testa Using Laboratory Rat as a Model for Pigs

    OpenAIRE

    Armstrong Donkoh; Victoria Attoh-Kotoku; Reginald Osei Kwame; Richard Gascar

    2012-01-01

    Dried cashew nut testa (DCNT) was characterized with respect to proximate, mineral, and energy profile. The crude protein, crude fibre, and fat and ash contents were, in g kg−1 DM, 190.0, 103.0, 20.1, and 20.2, respectively, with metabolizable energy of 7.12 MJ kg−1 DM. In a feeding trial, isoproteic diets containing DCNT (O, 50, 100, and 150 g kg−1) were fed ad libitum to 4 groups of Sprague-Dawley male rats (110 g body weight, = 2 0 ) for a period of 4 weeks. The rats, used as model for p...

  1. Study on the effect of porous fence on air quality and traffic noise level around a double-decked road structure. Evaluation by numerical model.

    Science.gov (United States)

    Tokairin, Takayuki; Kitada, Toshihiro

    2005-06-01

    Fence for traffic noise control sometimes causes adverse effect on air pollution. Thus in this study, performance of porous fence as a tool for control of both air pollution and noise pollution was evaluated. A two-dimensional numerical model for flow and pollutant concentration and an analytical model for traffic noise were utilized in the analysis of a double-decked road structure with fences only at ground (Case 1) and at both ground and upper deck (Case 2). Porous fences were assumed only at the ground level since the solid fences at the upper deck usually leads to desirable result on air pollution. Effects of the variable porosity on air quality and noise level near road were evaluated. Obtained results showed: (1) flow pattern in leeward of fence was drastically changed at 40-50% porosity in Case 1 and 50% in Case 2. The porosity larger than 40% excluded presence of a circulation behind the fence. (2) Effect of porous fence on air pollution was different in Cases 1 and 2. In Case 1, the porous fence generally resulted in the reduction of air pollution at the ground level; on the other hand, in Case 2, it rather led to increase of the concentration. (3) Traffic noise level was also largely changed by the porosity of the fence; an example of simultaneous evaluation of the effects of porous fence on both air and noise pollution in Case 1 showed that the fence of 60% porosity leads to reduction of air pollution by 20% compared with solid fence case, and reduction of noise pollution by 4-6% in dB compared with no fence case, at 1 m high and 10 m from the road.

  2. A Software Quality Evaluation System: JT-SQE

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    JT-SQE system is a software quality and measurement system. Itsdesign w a s based on the Chinese national standards of software product evaluation and qua lity characteristics. The JT-SQE system consists of two parts. One is the mode l for software quality measurement, which is of hierarchical structure. The other is the process of requirements definition, measurement and rating. The system i s a feasible model for software quality evaluation and measurement, and it has t he advantage of a friendly user interface, simple operation, ease of revision an d maintenance, and expansible measurements.

  3. Multi-year downscaling application of two-way coupled WRF v3.4 and CMAQ v5.0.2 over east Asia for regional climate and air quality modeling: model evaluation and aerosol direct effects

    Directory of Open Access Journals (Sweden)

    C. Hong

    2017-06-01

    Full Text Available In this study, a regional coupled climate–chemistry modeling system using the dynamical downscaling technique was established by linking the global Community Earth System Model (CESM and the regional two-way coupled Weather Research and Forecasting – Community Multi-scale Air Quality (WRF-CMAQ model for the purpose of comprehensive assessments of regional climate change and air quality and their interactions within one modeling framework. The modeling system was applied over east Asia for a multi-year climatological application during 2006–2010, driven with CESM downscaling data under Representative Concentration Pathways 4.5 (RCP4.5, along with a short-term air quality application in representative months in 2013 that was driven with a reanalysis dataset. A comprehensive model evaluation was conducted against observations from surface networks and satellite observations to assess the model's performance. This study presents the first application and evaluation of the two-way coupled WRF-CMAQ model for climatological simulations using the dynamical downscaling technique. The model was able to satisfactorily predict major meteorological variables. The improved statistical performance for the 2 m temperature (T2 in this study (with a mean bias of −0.6 °C compared with the Coupled Model Intercomparison Project Phase 5 (CMIP5 multi-models might be related to the use of the regional model WRF and the bias-correction technique applied for CESM downscaling. The model showed good ability to predict PM2. 5 in winter (with a normalized mean bias (NMB of 6.4 % in 2013 and O3 in summer (with an NMB of 18.2 % in 2013 in terms of statistical performance and spatial distributions. Compared with global models that tend to underpredict PM2. 5 concentrations in China, WRF-CMAQ was able to capture the high PM2. 5 concentrations in urban areas. In general, the two-way coupled WRF-CMAQ model performed well for both climatological and air

  4. Multi-year downscaling application of two-way coupled WRF v3.4 and CMAQ v5.0.2 over east Asia for regional climate and air quality modeling: model evaluation and aerosol direct effects

    Science.gov (United States)

    Hong, Chaopeng; Zhang, Qiang; Zhang, Yang; Tang, Youhua; Tong, Daniel; He, Kebin

    2017-06-01

    In this study, a regional coupled climate-chemistry modeling system using the dynamical downscaling technique was established by linking the global Community Earth System Model (CESM) and the regional two-way coupled Weather Research and Forecasting - Community Multi-scale Air Quality (WRF-CMAQ) model for the purpose of comprehensive assessments of regional climate change and air quality and their interactions within one modeling framework. The modeling system was applied over east Asia for a multi-year climatological application during 2006-2010, driven with CESM downscaling data under Representative Concentration Pathways 4.5 (RCP4.5), along with a short-term air quality application in representative months in 2013 that was driven with a reanalysis dataset. A comprehensive model evaluation was conducted against observations from surface networks and satellite observations to assess the model's performance. This study presents the first application and evaluation of the two-way coupled WRF-CMAQ model for climatological simulations using the dynamical downscaling technique. The model was able to satisfactorily predict major meteorological variables. The improved statistical performance for the 2 m temperature (T2) in this study (with a mean bias of -0.6 °C) compared with the Coupled Model Intercomparison Project Phase 5 (CMIP5) multi-models might be related to the use of the regional model WRF and the bias-correction technique applied for CESM downscaling. The model showed good ability to predict PM2. 5 in winter (with a normalized mean bias (NMB) of 6.4 % in 2013) and O3 in summer (with an NMB of 18.2 % in 2013) in terms of statistical performance and spatial distributions. Compared with global models that tend to underpredict PM2. 5 concentrations in China, WRF-CMAQ was able to capture the high PM2. 5 concentrations in urban areas. In general, the two-way coupled WRF-CMAQ model performed well for both climatological and air quality applications. The coupled

  5. Introducing Program Evaluation Models

    Directory of Open Access Journals (Sweden)

    Raluca GÂRBOAN

    2008-02-01

    Full Text Available Programs and project evaluation models can be extremely useful in project planning and management. The aim is to set the right questions as soon as possible in order to see in time and deal with the unwanted program effects, as well as to encourage the positive elements of the project impact. In short, different evaluation models are used in order to minimize losses and maximize the benefits of the interventions upon small or large social groups. This article introduces some of the most recently used evaluation models.

  6. Evaluation of nutritional quality of dried cashew nut testa using laboratory rat as a model for pigs.

    Science.gov (United States)

    Donkoh, Armstrong; Attoh-Kotoku, Victoria; Osei Kwame, Reginald; Gascar, Richard

    2012-01-01

    Dried cashew nut testa (DCNT) was characterized with respect to proximate, mineral, and energy profile. The crude protein, crude fibre, and fat and ash contents were, in g kg(-1)DM, 190.0, 103.0, 20.1, and 20.2, respectively, with metabolizable energy of 7.12 MJ kg(-1) DM. In a feeding trial, isoproteic diets containing DCNT (O, 50, 100, and 150 g kg(-1)) were fed ad libitum to 4 groups of Sprague-Dawley male rats (110 g body weight, n = 20) for a period of 4 weeks. The rats, used as model for pigs, had free access to water. As the dietary DCNT content was increased from 0 to 150 g kg(-1), there was a significant (P feed intake (r = -0.99), water intake (r = -0.87), and a reduction in body weight gain (r = -0.93) and efficiency of feed utilization (r = 0.78). However, no deaths or health-related problems were recorded during the study. Dietary treatments had no impact on liver, heart, lungs, kidneys, and intestinal weights. Cost per gram feed and feed cost per gram live weight gain were reduced when DCNT was used. The experimental diet containing 50 g DCNT kg(-1) supported the best growth performance with the lowest feed cost per gram live weight gain of GH¢0.18. Seasonal increases in the prices of conventional feedstuffs like maize and fishmeal would make the use of agroindustrial by-products such as DCNT in pig diets even more attractive.

  7. Evaluation of Nutritional Quality of Dried Cashew Nut Testa Using Laboratory Rat as a Model for Pigs

    Directory of Open Access Journals (Sweden)

    Armstrong Donkoh

    2012-01-01

    Full Text Available Dried cashew nut testa (DCNT was characterized with respect to proximate, mineral, and energy profile. The crude protein, crude fibre, and fat and ash contents were, in g kg−1 DM, 190.0, 103.0, 20.1, and 20.2, respectively, with metabolizable energy of 7.12 MJ kg−1 DM. In a feeding trial, isoproteic diets containing DCNT (O, 50, 100, and 150 g kg−1 were fed ad libitum to 4 groups of Sprague-Dawley male rats (110 g body weight, =20 for a period of 4 weeks. The rats, used as model for pigs, had free access to water. As the dietary DCNT content was increased from 0 to 150 g kg−1, there was a significant (<0.01 decrease in feed intake (=−0.99, water intake (=−0.87, and a reduction in body weight gain (=−0.93 and efficiency of feed utilization (=0.78. However, no deaths or health-related problems were recorded during the study. Dietary treatments had no impact on liver, heart, lungs, kidneys, and intestinal weights. Cost per gram feed and feed cost per gram live weight gain were reduced when DCNT was used. The experimental diet containing 50 g DCNT kg−1 supported the best growth performance with the lowest feed cost per gram live weight gain of GHȼ0.18. Seasonal increases in the prices of conventional feedstuffs like maize and fishmeal would make the use of agroindustrial by-products such as DCNT in pig diets even more attractive.

  8. River water quality modelling: II

    DEFF Research Database (Denmark)

    Shanahan, P.; Henze, Mogens; Koncsos, L.

    1998-01-01

    The U.S. EPA QUAL2E model is currently the standard for river water quality modelling. While QUAL2E is adequate for the regulatory situation for which it was developed (the U.S. wasteload allocation process), there is a need for a more comprehensive framework for research and teaching. Moreover......, and to achieve robust model calibration. Mass balance problems arise from failure to account for mass in the sediment as well as in the water column and due to the fundamental imprecision of BOD as a state variable. (C) 1998 IAWQ Published by Elsevier Science Ltd. All rights reserved....

  9. Comprehensive evaluation of multi-year real-time air quality forecasting using an online-coupled meteorology-chemistry model over southeastern United States

    Science.gov (United States)

    Zhang, Yang; Hong, Chaopeng; Yahya, Khairunnisa; Li, Qi; Zhang, Qiang; He, Kebin

    2016-08-01

    An online-coupled meteorology-chemistry model, WRF/Chem-MADRID, has been deployed for real time air quality forecast (RT-AQF) in southeastern U.S. since 2009. A comprehensive evaluation of multi-year RT-AQF shows overall good performance for temperature and relative humidity at 2-m (T2, RH2), downward surface shortwave radiation (SWDOWN) and longwave radiation (LWDOWN), and cloud fraction (CF), ozone (O3) and fine particles (PM2.5) at surface, tropospheric ozone residuals (TOR) in O3 seasons (May-September), and column NO2 in winters (December-February). Moderate-to-large biases exist in wind speed at 10-m (WS10), precipitation (Precip), cloud optical depth (COT), ammonium (NH4+), sulfate (SO42-), and nitrate (NO3-) from the IMPROVE and SEARCH networks, organic carbon (OC) at IMPROVE, and elemental carbon (EC) and OC at SEARCH, aerosol optical depth (AOD) and column carbon monoxide (CO), sulfur dioxide (SO2), and formaldehyde (HCHO) in both O3 and winter seasons, column nitrogen dioxide (NO2) in O3 seasons, and TOR in winters. These biases indicate uncertainties in the boundary layer and cloud process treatments (e.g., surface roughness, microphysics cumulus parameterization), emissions (e.g., O3 and PM precursors, biogenic, mobile, and wildfire emissions), upper boundary conditions for all major gases and PM2.5 species, and chemistry and aerosol treatments (e.g., winter photochemistry, aerosol thermodynamics). The model shows overall good skills in reproducing the observed multi-year trends and inter-seasonal variability in meteorological and radiative variables such as T2, WS10, Precip, SWDOWN, and LWDOWN, and relatively well in reproducing the observed trends in surface O3 and PM2.5, but relatively poor in reproducing the observed column abundances of CO, NO2, SO2, HCHO, TOR, and AOD. The sensitivity simulations using satellite-constrained boundary conditions for O3 and CO show substantial improvement for both spatial distribution and domain-mean performance

  10. Human Resource Management Quality Evaluation Model and Empirical Analysis%企业人力资源管理质量评价模型及实证分析

    Institute of Scientific and Technical Information of China (English)

    肖静华; 宛小伟; 谢康

    2011-01-01

    There are some arguments about the quality issue of human resource management and whether it is worthwhile to study. This paper presents the evaluation model of enterprise human resource management quality (HRMQ) and test its validity, including three second-order factors and 17 first-order factors, through case studies, field interviews and questionnaires, on the basis of high- performance work systems and human resource management effectiveness assumptions. The empirical results show that the variance of enterprise HRMQ becomes converging with maturity level increasing. The enterprise HRMQ is objective. Meanwhile, the degree of variation among the technical level, professional competence and strategic human resource management is diminishing with the enterprises improving their HRMQ. The human resource management focuses on the consistency of management in the higher quality stage than in the lower quality stage. This paper verifies the universality of Balanced Scorecard (BSC) ideas and methods in enterprise management from the perspective of HRMQ.%本文针对企业人力资源管理是否存在质量问题及该问题是否值得研究的分歧,基于高绩效工作系统和人力资源管理效能假设,通过案例研究、实地访谈和问卷调查,提出包含技术水平、专业水平和战略人力资源管理3个一阶因子、17个具体指标的企业人力资源管理质量(HRMQ)评价模型,并检验该模型的有效性。实证结果表明,企业HRMQ的标准差系数随着成熟度等级的提高而逐步收敛,企业HRMQ存在客观性。同时,随着企业提高HRMQ,技术水平、专业水平和战略人力资源管理三者之间的变异程度逐渐缩小,高质量企业人力资源管理阶段比低质量阶段更强调管理的一致性,从HRMQ角度验证了平衡计分卡(BSC)思想和方法在企业管理中的普适性。

  11. Higher Education Quality Assessment Model: Towards Achieving Educational Quality Standard

    Science.gov (United States)

    Noaman, Amin Y.; Ragab, Abdul Hamid M.; Madbouly, Ayman I.; Khedra, Ahmed M.; Fayoumi, Ayman G.

    2017-01-01

    This paper presents a developed higher education quality assessment model (HEQAM) that can be applied for enhancement of university services. This is because there is no universal unified quality standard model that can be used to assess the quality criteria of higher education institutes. The analytical hierarchy process is used to identify the…

  12. Higher Education Quality Assessment Model: Towards Achieving Educational Quality Standard

    Science.gov (United States)

    Noaman, Amin Y.; Ragab, Abdul Hamid M.; Madbouly, Ayman I.; Khedra, Ahmed M.; Fayoumi, Ayman G.

    2017-01-01

    This paper presents a developed higher education quality assessment model (HEQAM) that can be applied for enhancement of university services. This is because there is no universal unified quality standard model that can be used to assess the quality criteria of higher education institutes. The analytical hierarchy process is used to identify the…

  13. Aspect-Oriented Software Quality Model: The AOSQ Model

    Directory of Open Access Journals (Sweden)

    Pankaj Kumar

    2012-04-01

    Full Text Available Nowadays, software development has become more complex and dynamic; they are expected more flexible, scalable and reusable. Under the umbrella of aspect, Aspect-Oriented Software Development (AOSD is relatively a modern programming paradigm to improve modularity in software development. Using Aspect-Oriented Programming (AOP language to implements crosscutting concerns through the introduction of a new construct Aspect like Class is defined as a modular unit of crosscutting behavior that affect multiple classes into reusable modules. Several quality models to measure the quality of software are available in literature. However, keep on developing software, and acceptance of new environment (i.e. AOP under conditions that give rise to an issue of evolvability. After the evolution of system, we have to find out how the new system needs to be extensible? What is the configurable status? Is designed pattern stable for new environment and technology? How the new system is sustainable? The objective of this paper is to propose a new quality model for AOSD to integrating some new qualityattributes in AOSQUAMO Model based which is based on ISO/IEC 9126 Quality Model, is called AspectOriented Quality (AOSQ Model. Analytic Hierarchy Process (AHP is used to evaluate an improved hierarchical quality model for AOSD.

  14. Water Quality Evaluation Model Using Bayesian Method Based on Entropy Weight%基于熵权法赋权的贝叶斯水质评价模型

    Institute of Scientific and Technical Information of China (English)

    赵晓慎; 张超; 王文川

    2011-01-01

    基于贝叶斯水质评价理论,运用熵权赋权法求各评价指标权重,提出了熵权法赋权的贝叶斯水质评价模型,并以南四湖下级湖徽山站和韩庄闸为例进行了水质评价.结果表明,该模型有效可行,较等权重贝叶斯法对水质所属类别分辨率更高,为水环境保护与治理提供了依据.%Based on Bayesian theory of water quality evaluation, entropy weight empowerment method is used to obtain the weight of each evaluation indicator, and entropy weight empowerment-based Bayesian model of water quality evaluation is presented. And then the proposed model is applied to water quality evaluation of Huishan station and Hanzhuang pivot station located in downstream of Nansi Lake. The results show that the proposed model is feasible and effective for water quality evaluation; compared with the equal weighted Bayesian method, the entropy weight empowerment-based method has higher resolution for categories of water quality. Thus, it provides a reliable basis for water environment protection and management.

  15. Evaluation of headache service quality indicators

    DEFF Research Database (Denmark)

    Katsarava, Zaza; Gouveia, Raquel Gil; Jensen, Rigmor

    2015-01-01

    -Essen in Essen, Germany, and the Hospital da Luz in Lisbon, Portugal. Using seven previously-developed enquiry instruments, we interrogated health-care providers (HCPs), including doctors, nurses, psychologists and physiotherapists, as well as consecutive patients and their medical records. RESULTS......BACKGROUND: Evaluating quality of health care is increasingly recognized as an important contributor to the advancement of health-care delivery. We recently developed a set of quality indicators for headache care, intended to be applicable across countries, cultures and settings so...... that deficiencies in headache care worldwide might be recognized and rectified. These indicators themselves require evaluation and proof of fitness for purpose. This pilot study begins this process. METHODS: We tested the quality indicators in the tertiary headache centres of the University of Duisburg...

  16. SERVQUAL-Model-Based Fuzzy Evaluation of Express Service Quality in Online Shopping Environment%基于SERVQUAL模型的网购快递服务质量的模糊评价研究

    Institute of Scientific and Technical Information of China (English)

    于宝琴; 杜广伟

    2013-01-01

    将SERVQUAL模型运用到网购环境下的快递服务业,设计出由25个指标组成的网购快递服务质量评价体系.通过问卷调查和因子分析,将快递服务质量归结为服务前质量、服务中质量、服务后质量和企业形象4个维度来评价.在此基础上,运用FAHP获得各指标权重,建立服务质量的评价模型并进行模糊评价,最后得知网购人群对快递服务的感知和期望差距较大,并针对每一维度找出改进网购快递服务质量的策略,提升快递企业竞争力.%The quality of express delivery service has a significant impact on enhancing the competitiveness of express delivery companies. The Service Quality (SERVQUAL) model is applied to the evaluation of quality for express delivery services in the online shopping environment. To do so, an index system with 25 indexes is designed. Through questionnaires and factor analysis, the quality of express delivery service is evaluated in four dimensions: pre-service quality, in-service quality, after-service quality, and corporate image. With the index system, fuzzy analytic hierarchy process (FAHP) is used to determine the weight of each index to establish an evaluation model such that the service quality can be fuzzily evaluated. Result shows that there may be a large gap between people's perception and expectation on courier service quality. With this finding, suggestions are proposed to improve service quality for each dimension and enhance the competitiveness of express delivery companies.

  17. A Bayesian approach for evaluation of the effect of water quality model parameter uncertainty on TMDLs: A case study of Miyun Reservoir.

    Science.gov (United States)

    Liang, Shidong; Jia, Haifeng; Xu, Changqing; Xu, Te; Melching, Charles

    2016-08-01

    Facing increasingly serious water pollution, the Chinese government is changing the environmental management strategy from solely pollutant concentration control to a Total Maximum Daily Load (TMDL) program, and water quality models are increasingly being applied to determine the allowable pollutant load in the TMDL. Despite the frequent use of models, few studies have focused on how parameter uncertainty in water quality models affect the allowable pollutant loads in the TMDL program, particularly for complicated and high-dimension water quality models. Uncertainty analysis for such models is limited by time-consuming simulation and high-dimensionality and nonlinearity in parameter spaces. In this study, an allowable pollutant load calculation platform was established using the Environmental Fluid Dynamics Code (EFDC), which is a widely applied hydrodynamic-water quality model. A Bayesian approach, i.e. the DiffeRential Evolution Adaptive Metropolis (DREAM) algorithm, which is a high-efficiency, multi-chain Markov Chain Monte Carlo (MCMC) method, was applied to assess the effects of parameter uncertainty on the water quality model simulations and its influence on the allowable pollutant load calculation in the TMDL program. Miyun Reservoir, which is the most important surface drinking water source for Beijing, suffers from eutrophication and was selected as a case study. The relations between pollutant loads and water quality indicators are obtained through a graphical method in the simulation platform. Ranges of allowable pollutant loads were obtained according to the results of parameter uncertainty analysis, i.e. Total Organic Carbon (TOC): 581.5-1030.6t·yr(-1); Total Phosphorus (TP): 23.3-31.0t·yr(-1); and Total Nitrogen (TN): 480-1918.0t·yr(-1). The wide ranges of allowable pollutant loads reveal the importance of parameter uncertainty analysis in a TMDL program for allowable pollutant load calculation and margin of safety (MOS) determination. The sources

  18. Assessment of the Quality Management Models in Higher Education

    Science.gov (United States)

    Basar, Gulsun; Altinay, Zehra; Dagli, Gokmen; Altinay, Fahriye

    2016-01-01

    This study involves the assessment of the quality management models in Higher Education by explaining the importance of quality in higher education and by examining the higher education quality assurance system practices in other countries. The qualitative study was carried out with the members of the Higher Education Planning, Evaluation,…

  19. Uncertainty in Regional Air Quality Modeling

    Science.gov (United States)

    Digar, Antara

    Effective pollution mitigation is the key to successful air quality management. Although states invest millions of dollars to predict future air quality, the regulatory modeling and analysis process to inform pollution control strategy remains uncertain. Traditionally deterministic ‘bright-line’ tests are applied to evaluate the sufficiency of a control strategy to attain an air quality standard. A critical part of regulatory attainment demonstration is the prediction of future pollutant levels using photochemical air quality models. However, because models are uncertain, they yield a false sense of precision that pollutant response to emission controls is perfectly known and may eventually mislead the selection of control policies. These uncertainties in turn affect the health impact assessment of air pollution control strategies. This thesis explores beyond the conventional practice of deterministic attainment demonstration and presents novel approaches to yield probabilistic representations of pollutant response to emission controls by accounting for uncertainties in regional air quality planning. Computationally-efficient methods are developed and validated to characterize uncertainty in the prediction of secondary pollutant (ozone and particulate matter) sensitivities to precursor emissions in the presence of uncertainties in model assumptions and input parameters. We also introduce impact factors that enable identification of model inputs and scenarios that strongly influence pollutant concentrations and sensitivity to precursor emissions. We demonstrate how these probabilistic approaches could be applied to determine the likelihood that any control measure will yield regulatory attainment, or could be extended to evaluate probabilistic health benefits of emission controls, considering uncertainties in both air quality models and epidemiological concentration-response relationships. Finally, ground-level observations for pollutant (ozone) and precursor

  20. Evaluating the Effect of Software Quality Characteristics on Health Care Quality Indicators

    Directory of Open Access Journals (Sweden)

    Sakineh Aghazadeh

    2015-07-01

    Full Text Available Introduction: Various types of software are used in health care organizations to manage information and care processes. The quality of software has been an important concern for both health authorities and designers of Health Information Technology. Thus, assessing the effect of software quality on the performance quality of healthcare institutions is essential. Method: The most important health care quality indicators in relation to software quality characteristics are provided via an already performed literature review. ISO 9126 standard model is used for definition and integration of various characteristics of software quality. The effects of software quality characteristics and sub-characteristics on the healthcare indicators are evaluated through expert opinion analyses. A questionnaire comprising of 126 questions of 10-point Likert scale was used to gather opinions of experts in the field of Medical/Health Informatics. The data was analyzed using Structural Equation Modeling. Results: Our findings showed that software Maintainability was rated as the most effective factor on user satisfaction (R2 =0.89 and Functionality as the most important and independent variable affecting patient care quality (R2 =0.98. Efficiency was considered as the most effective factor on workflow (R2 =0.97, and Maintainability as the most important factor that affects healthcare communication (R2 =0.95. Usability and Efficiency were rated as the most effectual factor affecting patient satisfaction (R2 =0.80, 0.81. Reliability, Maintainability, and Efficiency were considered as the main factors affecting care costs (R2 =0.87, 0.74, 0.87. Conclusion: We presented a new model based on ISO standards. The model demonstrates and weighs the relations between software quality characteristics and healthcare quality indicators. The clear relationships between variables and the type of the metrics and measurement methods used in the model make it a reliable method to assess

  1. The EPANET water quality model

    Energy Technology Data Exchange (ETDEWEB)

    Rossman, L.A. [Environmental Protection Agency, Cincinnati, OH (United States)

    1995-10-01

    EPANET is a software package developed by US EPA`s Drinking Water Research Division for modeling hydraulic and water quality behavior within water distribution systems. Starting with a geometric description of the pipe network, a set of initial conditions, estimates of water usage, and a set of rules for how the system is operated, EPANET predicts all flows, pressures, and water quality levels throughout the network during an extended period of operation. In addition to substance concentration, water age and source tracing can also be simulated. EPANET offers a number of advanced features including: modular, highly portable C language code with no pre-set limits on network size; a simple data input format based on a problem oriented language; a full-featured hydraulic simulator; improved water quality algorithms; analysis of water quality reactions both within the bulk flow and at the pipe wall; an optional graphical user interface running under Microsoft{reg_sign} Windows{trademark}. The Windows user interface allows one to edit EPANET input files, run a simulation, and view the results all within a single program. Simulation output can be visualized through: color-coded maps of the distribution system with full zooming, panning and labeling capabilities and a slider control to move forward or backward through time; spreadsheet-like tables that can be searched for entries meeting a specified criterion; and time series graphs of both predicted and observed values for any variable at any location in the network. EPANET is currently being used to analyze a number of water quality issues in different distribution systems across the country. These include: chlorine decay dynamics, raw water source blending, altered tank operation, and integration with real-time monitoring and control systems.

  2. Developing a TQM quality management method model

    OpenAIRE

    Zhang, Zhihai

    1997-01-01

    From an extensive review of total quality management literature, the external and internal environment affecting an organization's quality performance and the eleven primary elements of TQM are identified. Based on the primary TQM elements, a TQM quality management method model is developed. This model describes the primary quality management methods which may be used to assess an organization's present strengths and weaknesses with regard to its use of quality management methods. This model ...

  3. Service Quality Evaluation for Chain Restaurants Usi ng SERVQUAL Model%基于SERVQUAL模型的连锁餐厅服务质量评价研究

    Institute of Scientific and Technical Information of China (English)

    朱霖; 王岐闻; 翟婧文

    2016-01-01

    Considering domestic consumer demands for service quality of chain restaurants,an evaluation system is established using the SERVQUAL model.The model contains 2 1 indicators belonging to five categories:restaurant environment,service attitude,food quality,safety and re-liability,and scale of the brand.Each indicator undergoes a weighted analysis in an analytic hier-archy process (AHP).The obj ective is to determine dominant factors affecting customer satisfac-tion on the services.An empirical study on a typical multinational chain restaurant,Hooters,is conducted by face-to-face interview and questionnaire.The result suggests that the four dominant factors are freshness of raw materials,safety and reliability of materials,comprehensive and bal-anced nutrition,and hygiene of tableware.%在SERVQUAL模型的基础上,结合国内消费者对连锁餐厅服务质量的要求,从餐厅环境、服务水平、食品质量、安全卫生和品牌规模5个维度出发,设计一套包含21个三级指标的连锁餐厅服务质量评价指标体系。采用层次分析法(AHP)对各指标进行权重分析,旨在找出影响连锁餐厅服务质量的关键因素,并在此基础上以问卷调查的形式,对 Hooters 餐厅进行实证分析。结果表明,影响连锁餐厅服务质量的最为重要的4大因素分别是原料的新鲜程度、食物原料的安全、食物营养全面和餐具安全卫生。

  4. Evaluation of Bayesian estimation of a hidden continuous-time Markov chain model with application to threshold violation in water-quality indicators

    Science.gov (United States)

    Deviney, Frank A.; Rice, Karen; Brown, Donald E.

    2012-01-01

    Natural resource managers require information concerning  the frequency, duration, and long-term probability of occurrence of water-quality indicator (WQI) violations of defined thresholds. The timing of these threshold crossings often is hidden from the observer, who is restricted to relatively infrequent observations. Here, a model for the hidden process is linked with a model for the observations, and the parameters describing duration, return period, and long-term probability of occurrence are estimated using Bayesian methods. A simulation experiment is performed to evaluate the approach under scenarios based on the equivalent of a total monitoring period of 5-30 years and an observation frequency of 1-50 observations per year. Given constant threshold crossing rate, accuracy and precision of parameter estimates increased with longer total monitoring period and more-frequent observations. Given fixed monitoring period and observation frequency, accuracy and precision of parameter estimates increased with longer times between threshold crossings. For most cases where the long-term probability of being in violation is greater than 0.10, it was determined that at least 600 observations are needed to achieve precise estimates.  An application of the approach is presented using 22 years of quasi-weekly observations of acid-neutralizing capacity from Deep Run, a stream in Shenandoah National Park, Virginia. The time series also was sub-sampled to simulate monthly and semi-monthly sampling protocols. Estimates of the long-term probability of violation were unbiased despite sampling frequency; however, the expected duration and return period were over-estimated using the sub-sampled time series with respect to the full quasi-weekly time series.

  5. Evaluation Framework for Quality Management Software

    Directory of Open Access Journals (Sweden)

    Nadica Hrgarek

    2008-06-01

    Full Text Available Identifying and specifying user requirements is an integral part of information systems design and is critical for the project success. More than 50% of the reasons for the project failure presented in the CHAOS report [36] and study of a US Air Force project by Sheldon et al. [33] are related to requirements. The goal of this paper is to assess the relevant user and software requirements which are the basis for an electronic quality management system selection in medical device companies. This paper describes the structured evaluation and selection process of different quality management software tools that shall support business processes. The purpose of this paper is to help the small to medium size medical device companies to choose the right quality management software which meets the company's business needs.

  6. CMAQ Model Evaluation Framework

    Science.gov (United States)

    CMAQ is tested to establish the modeling system’s credibility in predicting pollutants such as ozone and particulate matter. Evaluation of CMAQ has been designed to assess the model’s performance for specific time periods and for specific uses.

  7. Evaluation Research on Logistics Enterprise Service Quality Based on LSQ and SERVQUAL Model%基于SERVQUAL和LSQ模型的物流企业服务质量评价研究

    Institute of Scientific and Technical Information of China (English)

    周正嵩; 施国洪

    2012-01-01

    从技术质量和功能质量角度构建物流企业服务质量评价理论模型,确定可靠性、反应性、有形性、协作性和经济性五个维度,并设计出包含16个题项的量表,实证研究表明其有较好的信度和效度,是进行物流企业服务质量评价的有效工具.%From the angle of technical quality and function quality, the paper constructed an evaluation theory model of logistics enterprise service quality, and determined five dimensions; reliability, reactiveness, tangibility ,* coordination and economy, it designed 16 problems of the five dimensions. The empirical research shows that the scale has good reliability and validity, it' s the effective tool to service quality evaluation.

  8. 面向领域的软件质量评价模型研究与应用%RESEARCH AND APPLICATION OF DOMAIN-ORIENTED SOFTWARE QUALITY EVALUATING MODEL

    Institute of Scientific and Technical Information of China (English)

    袁梦乔; 杨根兴

    2012-01-01

    以GB/T16260质量模型为基础,提出一种面向领域的软件质量评价方法.首先,依据GB/T16260和针对领域软件质量评价的需求,建立一个通用模型;然后,在领域分析的基础上,生成反映领域特色的特性和子特性,并抽取GB-T16260质量模型中适用于目标领域的特性、子特性及属性,生成目标领域质量评价模型.最后,以该方法建立信贷领域质量评价模型并评价三款信贷软件系统,验证了该方法的可行性.%In this paper, according to GB/T16260 software quality model, we propose a method for domain-oriented software quality evaluating. First, we set up a universal model based on GB/T16260 and the requirements in light of domain software quality evaluation,Then we produce characteristics and subordinate characteristics reflecting the trait of the domain based on domain analysis, and extract the characteristics and sub-characteristics together with their attributes suitable for objective domain in GB/T16260 quality model to form quality evaluating model of objective domain. Finally, we apply this method to build a software quality evaluating model for credit domain and assess 3 pieces of credit software systems. It proves the feasibility of the method.

  9. Data quality evaluation in medical database watermarking.

    Science.gov (United States)

    Franco-Contreras, Javier; Coatrieux, Gouenou; Massari, Philippe; Darmoni, Stefan; Cuppens-Boulahia, Nora; Cuppens, Frédéric; Roux, Christian

    2015-01-01

    The use of watermarking in the protection of medical relational databases requires that the introduced distortion does not hinder records interpretation. In this paper, we present the preliminary results of a watermarked data quality evaluation protocol developed so as to analyze the perception the practitioner has of the watermark. These results show that some attributes are more appropriate for watermarking than others and also that incoherent or unlikely records resulting from careless watermarking are easily identified by an expert.

  10. 高职创业型人才培养模式的质量评价与监控体系探讨%Quality Evaluation and Monitoring System of Vocational Entrepreneurial Talent Training Model

    Institute of Scientific and Technical Information of China (English)

    李明娟

    2014-01-01

    This paper discusses the quality monitoring and evaluation system of vocational entrepreneurial talent training model, proposes the teaching quality evaluation and monitoring building program of"school-enterprise building, multi-condominium".%本文就高职创业型人才培养模式的质量监控与评价体系进行探讨,提出了“校企共建、多元共管”的教学质量评价和监控建设方案。

  11. Legitimizing basic research by evaluating quality.

    Science.gov (United States)

    Levy-Malmberg, Rika; Eriksson, Katie

    2010-01-01

    The aim of this study was to use ethical arguments to strengthen the relationship between the concepts of legitimacy and evaluation. The analysis is based on the ethics of Levinas and Buber and is motivated by a sense of responsibility using dialogical ideology as a mediator. The main questions in this study consider the following: Does caring science as an independent academic discipline have the moral responsibility to develop a theory for evaluating the quality of basic research? and Will such a quality evaluation theory have a reasonable probability of introducing legitimization into caring science? On an ethical level, this study introduces a meaningful interaction inspired by social demands and is linked to the concept of research justification. Legitimization turns from an abstract idea to an achievable entity by an act. The act of evaluation has the likelihood of delegating legitimacy and empowers the foundation of caring science, which in turn will become a cornerstone of nursing. At this stage there is no intention to develop an evaluation theory, rather to create a meaningful discussion for the future development of an ethics-based theory.

  12. VPPA weld model evaluation

    Science.gov (United States)

    McCutcheon, Kimble D.; Gordon, Stephen S.; Thompson, Paul A.

    1992-07-01

    NASA uses the Variable Polarity Plasma Arc Welding (VPPAW) process extensively for fabrication of Space Shuttle External Tanks. This welding process has been in use at NASA since the late 1970's but the physics of the process have never been satisfactorily modeled and understood. In an attempt to advance the level of understanding of VPPAW, Dr. Arthur C. Nunes, Jr., (NASA) has developed a mathematical model of the process. The work described in this report evaluated and used two versions (level-0 and level-1) of Dr. Nunes' model, and a model derived by the University of Alabama at Huntsville (UAH) from Dr. Nunes' level-1 model. Two series of VPPAW experiments were done, using over 400 different combinations of welding parameters. Observations were made of VPPAW process behavior as a function of specific welding parameter changes. Data from these weld experiments was used to evaluate and suggest improvements to Dr. Nunes' model. Experimental data and correlations with the model were used to develop a multi-variable control algorithm for use with a future VPPAW controller. This algorithm is designed to control weld widths (both on the crown and root of the weld) based upon the weld parameters, base metal properties, and real-time observation of the crown width. The algorithm exhibited accuracy comparable to that of the weld width measurements for both aluminum and mild steel welds.

  13. Real-time Desktop Flying Qualities Evaluation Simulator

    Directory of Open Access Journals (Sweden)

    Kamali C.

    2014-01-01

    Full Text Available This paper presents the application of model based design for the development of a real-time flying quality evaluation simulator named NALSim, built around Windows platform. NALSim is a novel rapid prototyping system based on MatlabR, SimulinkR and the Real-Time-Windows TargetR, applicable for fighter, transport and unmanned air vehicles/micro air vehicles simulations. The simulator uses state of the art modeling and simulation technologies to validate various design and flying quality concepts. NALSim is developed such that it is scalable and low cost. The paper presents the simulator architecture and its application for flying qualities. A novel non linear Least Squares optimization based methodology is proposed for efficient handling quality studies.Defence Science Journal, Vol. 64, No. 1, January 2014, DOI:10.14429/dsj.64.4961

  14. Evaluation of water-quality characteristics of part of the Spokane Aquifer, Washington and Idaho, using a solute-transport digital model

    Science.gov (United States)

    Vaccaro, J.J.; Bolke, E.L.

    1983-01-01

    The principal dissolved constituents in water in the Spokane aquifer are calcium and bicarbonate. These constituents (as well as dissolved solids, hardness, and magnesium) each correlate well with specific conductance, whereas chloride, sodium, and nitrate each do not. Specific conductance ranges from 73 to 820 micromhos per centimeter throughout the study area. Short-term variations in water quality in the Spokane aquifer are generally greater than long-term variations. Vertical variations in concentration of chemical constituents occurred in four of 15 wells used to sample the upper 50 feet of the aquifer along several cross sections. Changes in water quality from one cross section to another could not be directly related to land-use activities. A digital model was developed and used to simulate solute transport of conservative ions in the Spokane aquifer. Specifically, the model was used to estimate the impact of the chloride ion from recharge through septic tanks and from irrigation on the water quality of the aquifer. Analysis shows that the estimated impact on the aquifer from these two source loadings was less than a 1-milligram-per-liter increase throughout approximately 80 percent of the aquifer, but increases averaging about 3 milligrams per liter occurred in some peripheral areas. Various water-quality-management schemes based on manmade or natural stresses can be tested with the model.

  15. Quantitative evaluation of CBM reservoir fracturing quality using logging data

    Science.gov (United States)

    Tang, Xiaoyan

    2017-03-01

    This paper presents a method for the quantitative evaluation of fracturing quality of coalbed methane (CBM) reservoirs using logging data, which will help optimize the reservoir fracturing layer. First, to make full use of logging and laboratory analysis data of coal cores, a method to determine the brittleness index of CBM reservoirs is deduced using coal industrial components. Second, this paper briefly introduces methodology to compute the horizontal principal stress difference coefficient of coal seams and the minimum horizontal principal stress difference of coal seams and roof and floor. Third, an evaluation model for the coal structure index is established using logging data, which fully considers the fracturing quality of CBM reservoirs affected by the coal structure. Fourth, the development degree of the coal reservoir is evaluated. The evaluation standard for fracturing quality of CBM reservoirs based on these five evaluation parameters is used for quantitative evaluation. The results show that the combination of methods proposed in this paper are effective. The results are consistent with the fracturing dynamic drainage. The coal seam with large brittleness index, large stress difference between the coal seam and roof and floor, small stress difference coefficient and high coal structure index has a strong fracturing quality.

  16. 基于改进变权物元可拓模型的电能质量综合评价%Comprehensive Evaluation on Power Quality Based on Improved Matter-Element Extension Model With Variable Weight

    Institute of Scientific and Technical Information of China (English)

    李泓泽; 郭森; 唐辉; 李春杰

    2013-01-01

    对电能质量进行综合评价是电能按质论价和评估点考核奖惩决定的主要依据之一.提出了改进变权物元可拓模型的电能质量综合评价模型,该模型对物元可拓模型的经典域和待评物元以及最大隶属度准则进行了改进,以克服其在电能质量综合评价中的局限性和不足之处;同时,运用变权理论确定了各评级指标的权重,减少了电能质量评价时的主观因素以及体现了评价对象在综合评价中的主动参与.以某110 kV变电站母线实测数据为例,评价结果显示其电能质量等级为合格,但偏向于不合格等级的程度较大.算例结果表明了该模型用于电能质量综合评价的有效性.%As for the pricing by electrical energy quality and the decision of rewards and penalties based on the examination at assessment point,Comprehensive evaluation on power quality is one of the principal foundations.A comprehensive power quality evaluation model based on improved matter-element extension model with variable weight,in which the classical domain of matter-element extension model and the maximum membership criterion are improved to remedy its boundedness and defects in the evaluation of power quality,is proposed.Meanwhile,applying variable weight theory the weights of all rating indices are determined to reduce the influence of subjective factors during the power quality evaluation and incarnate the active participation of evaluated objects during the comprehensive evaluation.Taking measured data form busbar of a certain 1 10kV for example,the evaluation result shows that the grade of power quality is qualified but far from being satisfied.Case study shows that the proposed model is effective for comprehensive evaluation of power quality.

  17. A review of how the quality of HIV clinical services has been evaluated or improved.

    Science.gov (United States)

    Hung, Anna; Pradel, Françoise

    2015-06-01

    To examine approaches being used to evaluate and improve quality of HIV clinical services we searched the MEDLINE, Cochrane Library collection, EMBASE, Global Health, and Web of Science databases for articles and abstracts focused on evaluating or improving quality of HIV clinical services. We extracted country income level, targeted clinical services, and quality evaluation approaches, data sources, and criteria. Fifty journal articles and 46 meeting abstracts were included. Of the 96 studies reviewed, 65% were programme evaluations, 71% focused on low- and middle-income countries, and 65% focused on antiretroviral therapy services. With regard to quality, 45% used a quality improvement model or programme, 13% set a quality threshold, and 51% examined patient records to evaluate quality. No studies provided a definition for quality HIV care. Quality assurance and improvement of HIV clinical services is increasingly important. This review highlights gaps in knowledge for future research, and may also help countries and programmes develop their HIV care quality improvement frameworks.

  18. Practical application of biological variation and Sigma metrics quality models to evaluate 20 chemistry analytes on the Beckman Coulter AU680.

    Science.gov (United States)

    Tran, Mai Thi Chi; Hoang, KienTrung; Greaves, Ronda F

    2016-11-01

    This study aimed to evaluate the imprecision and bias data generated for 20 routine chemistry analytes against both the biological variation fitness for purpose (FFP) and Sigma metrics (SM) criteria. Twenty serum/plasma analytes were evaluated on the Beckman Coulter AU680. Third party commercial lyophilized internal quality control samples of human origin were used for day-to-day imprecision calculations. Commercial external quality assurance (EQA) samples were used to determine the systematic error between the test method result and the instrument group mean result from the EQA program for each analyte. Biological variation data was used to calculate the minimum, desirable and optimal imprecision and bias for determination of FFP. The desirable total allowable error was determined from biological variation data and applied to the SM calculation. The outcomes of both quality approaches were then compared. The day-to-day imprecision of most tested analytes (except sodium and chloride) were smaller than the allowable imprecision (ranging from minimum to optimum). Most analytes achieved at least minimum bias. The SM varied with analyte concentration with six analytes producing low Sigma values. Comparing the quality processes eleven analytes produced a green light for both FFP and SM. There was some difference seen in interpretation for the other nine analytes. The individual interpretation of bias and imprecision using FFP criteria allowed for the clear determination of the major source of error. Whereas, SM provided a summative evaluation of method performance. But the selection of total allowable error (TEa) is fundamental to this interpretation and harmonisation of the TEa calculation is needed. Copyright © 2016 The Canadian Society of Clinical Chemists. Published by Elsevier Inc. All rights reserved.

  19. Application of Structural Equation Model to Evaluate the Perception of Service Quality of Medical Staffs of infectious Disease Department in Chinese Hospitals

    Institute of Scientific and Technical Information of China (English)

    2014-01-01

    Objective To enhance the quality of medical service for Chinese patients through research of service quality from Chinese medical personnel. Methods ServQual scale was used for infection medical staffs randomly by sampling questionnaire in Beijing, Shanghai, Chengdu, Chongqing, Guangzhou and Nanning. The data collected were entered and analyzed using SPSS 20.0. Statistical methods included frequency, factor analysis, reliability analysis, correlation analysis, independent samples t test, one-way analyses of variance, simultaneous regression analysis and structural equation model analysis. Results The Kaiser-Meyer-Olkin value for the factor analysis of the scale was 0.970. The Cronbach’sαfor the reliability analysis was 0.975. The Pearson correlation coefficients were 0.624-0.874 and statistically significant. Undergraduates felt good, PhD students felt bad;the doctors felt bad;managers felt good. Standard 5 dimensions of the regression coefficients were positive, including empathy (β = 0.288), reliability (β =0.241) impacting on perceived service quality mostly. The control ability and stability of the standard error of perceived service quality directly effected value were 0.646 and 0.382, respectively. Conclusions Medical staffs of infectious disease department have poor perception of service quality. Hospitals should improve awareness and of clinicians and deepen the reform of the medical care system.

  20. Application status quo of SERVQUAL gap model in nursing service quality evaluation%服务质量差距模型在护理服务质量评价中的应用现状

    Institute of Scientific and Technical Information of China (English)

    王梦娜; 盛孝敏; 王小梅

    2016-01-01

    It expounded the service quality model (SERVQUAL)promoting the continuous improvement of nursing service quality scale in nursing service quality evaluation,to know about the status quo of service,found out the weak links,and explore the influencing factors of the nursing service quality.It suggested that SE-RVQUA model was different from other evaluation methods,and it could evaluate the nursing service quality obj ectively,comprehensively and scientific.%阐述了服务质量差距(SERVQUAL)模型在护理服务质量评价中促进护理服务质量量表的不断改进,了解服务现状、发现薄弱环节,探索护理服务质量影响因素的作用。提示SERVQUAL模型区别于其他评价方法,能够客观、全面、科学评价护理服务质量。

  1. 无参考视频传输质量评价模型%Null-reference video transport quality evaluation model

    Institute of Scientific and Technical Information of China (English)

    许鑫; 刘衍珩; 王爱民; 孙丹丹

    2012-01-01

    According to the various characteristics of light source that can be perceived by the audience, the whole domain of stimulation is divided into multiple parts. Each part is mapped to the perception scales by means of the effect of visual staying phenomenon. Thus, in this paper the Weber-Fechner's law is improved first. Then, a mapping model is proposed on the MOS and loss ratio of the macroblock. The model calculates the minimum distortion and undamaged area of which audience awarded by standing at the best observation position ahead of the monitor. It achieves an evaluation of the full field damage by not only reflecting the effect of impairment, which can visually stay in the eyes, but also indicating the spatial extent and temporal propagation of loss. Experiments show that the proposed method can be deployed in any network nodes for its low computational complexity and achieve better video quality in close touch with the audience.%根据受众对光源的各类察觉特征,将物理刺激量全域分为多个部分,并依据人眼视觉暂留效果分别映射到感知心理量的区段,以此修正了Weber-Fechner对数法则。并在此基础上提出一种宏块丢失比率与主观保真度的映射模型,该模型以受众的视敏度为依据,利用视星原理计算在最佳观测位置处可察觉的最小失真程度和最小未失真区域,不但体现了失真现象在人眼中的暂留效果,而且反应了损伤在时空中的传播,实现了对损伤全域的评测。模型计算代价小且可部署在任意网络节点中,可得到更贴近受众感受的视频质量。

  2. Modeling Water Quality in Rivers

    Directory of Open Access Journals (Sweden)

    Liren Yu

    2005-01-01

    Full Text Available This study reports a PC software, used in a Windows-based environment, which was developed based on the first order reaction of Biological Oxygen Demand (BOD and a modified Streeter and Phelps equation, in order to simulate and determine the variations of Dissolved Oxygen (DO and of the BOD along with the studied river reaches. The software considers many impacts of environmental factors, such as the different type of discharges (concentrated or punctual source, tributary contribution, distributed source, nitrogenous BOD, BOD sedimentation, photosynthetic production and benthic demand of oxygen, and so on. The software has been used to model the DO profile along one river, with the aim to improve the water quality through suitable engineering measure.

  3. Pragmatic geometric model evaluation

    Science.gov (United States)

    Pamer, Robert

    2015-04-01

    Quantification of subsurface model reliability is mathematically and technically demanding as there are many different sources of uncertainty and some of the factors can be assessed merely in a subjective way. For many practical applications in industry or risk assessment (e. g. geothermal drilling) a quantitative estimation of possible geometric variations in depth unit is preferred over relative numbers because of cost calculations for different scenarios. The talk gives an overview of several factors that affect the geometry of structural subsurface models that are based upon typical geological survey organization (GSO) data like geological maps, borehole data and conceptually driven construction of subsurface elements (e. g. fault network). Within the context of the trans-European project "GeoMol" uncertainty analysis has to be very pragmatic also because of different data rights, data policies and modelling software between the project partners. In a case study a two-step evaluation methodology for geometric subsurface model uncertainty is being developed. In a first step several models of the same volume of interest have been calculated by omitting successively more and more input data types (seismic constraints, fault network, outcrop data). The positions of the various horizon surfaces are then compared. The procedure is equivalent to comparing data of various levels of detail and therefore structural complexity. This gives a measure of the structural significance of each data set in space and as a consequence areas of geometric complexity are identified. These areas are usually very data sensitive hence geometric variability in between individual data points in these areas is higher than in areas of low structural complexity. Instead of calculating a multitude of different models by varying some input data or parameters as it is done by Monte-Carlo-simulations, the aim of the second step of the evaluation procedure (which is part of the ongoing work) is to

  4. Quality evaluation of the sourdough rye breads

    Directory of Open Access Journals (Sweden)

    IULIANA BANU

    2011-12-01

    Full Text Available Sourdough fermentation is a biotechnological process that has been reported to improve dough properties, to increase bread flavor and taste, to enhance nutritional value and to extend shelf life of sourdough bread. The quality of rye breads prepared with 20 and 40% sourdough, fermented with different mixed starter cultures was investigated in this study. The bread quality was evaluated in terms of specific volume, humidity, total titratable acidity, crumb characteristics and sensory profiles. Digital image analysis revealed that rye bread with 40% sourdough had a considerably denser crumb structure. Rye bread with 20% sourdough maintained superior texture characteristics over the storage period, while increasing the sourdough content to 40% had a negative effect on the texture. The sensory profiles of the bread highly depended on the type of starter cultures used for fermentation.

  5. 软件构件质量评价模型研究%Research on Evaluation Model of Software Component Quality

    Institute of Scientific and Technical Information of China (English)

    杨磊

    2011-01-01

    Component-based Software Development(CBSD) is an effective way to solve the software crisis and improve software productivity. The quality of software component affects the quality of final software product. This paper, considering the characteristic of component and industry standards, proposes a method based on AHP and fuzzy synthesis evaluation method to evaluate component quality, as component users and administrators' reference point.%基于构件的软件开发(CBSD)是解决软件危机,提高软件生产率的有效方法.软件构件的质量对最终软件产品的质量有重大影响.本文结合构件自身特性,参照业界标准,提出一套基于层次分析法和模糊综合评价法的构件评价方法,作为构件用户和构件管理员选用构件时的参考方案.

  6. Attention modeling for video quality assessment

    DEFF Research Database (Denmark)

    You, Junyong; Korhonen, Jari; Perkis, Andrew

    2010-01-01

    averaged spatiotemporal pooling. The local quality is derived from visual attention modeling and quality variations over frames. Saliency, motion, and contrast information are taken into account in modeling visual attention, which is then integrated into IQMs to calculate the local quality of a video frame...

  7. Quality of medical services: problems, evaluation and regulation

    Directory of Open Access Journals (Sweden)

    Farida Yerdavletova

    2015-10-01

    Full Text Available One of the most acute problems in the healthcare industry – the problem of the quality of medical services. In this area, there is no established definition of medical services or approaches to quality management. The aim of the article is to analyze the existing definitions of “quality of medical services,” as well as development approach to managing medical organization. At the same time the management of the medical organization should be focused on ensuring the quality as the most important criterion for the organization. Methodology of the study is based on analysis and grouping of existing definitions of medical services, the factorial approach to evaluating the quality and organization of the process approach to management of the medical organization. Noting the versatility and diversity concepts of quality of care the authors suggest grouping of direct and indirect factors affecting the quality of medical services. However, it is important, according to the authors, to move from functional management to management based on the process approach, which provides better control over the processes of customer service. Is given process model of quality management of health services and highlights the main groups of processes in the medical organization.

  8. Study on a Quality Evaluation Method for College English Classroom Teaching

    Directory of Open Access Journals (Sweden)

    Mao-hua Sun

    2017-07-01

    Full Text Available A quality evaluation method is an important means and the main basis on which to evaluate the college English classroom teaching quality of teachers. To overcome the one-sided subjectivity and resulting imprecision of the traditional classroom teaching quality evaluation method, a scientific and reasonable quality evaluation index system for college English classroom teaching is constructed. The fuzzy comprehensive evaluation method and the analytic hierarchy process method are combined to propose an improved multi-level fuzzy comprehensive evaluation model for obtaining a new college English classroom teaching quality evaluation method. In the proposed method, according to the fuzzy characteristics of a college English classroom teaching quality evaluation, the fuzzy comprehensive evaluation method is used to transform the qualitative evaluation indexes into limited quantitative evaluation indexes, then a judgment matrix is constructed to determine the weights among different levels by using the analytic hierarchy process method. Additionally, the college English classroom teaching quality is evaluated in detail. Finally, an actual case of college English classroom teaching is used to verify the effectiveness of the college English classroom teaching quality evaluation method. The results show that the proposed college English classroom teaching method can overcome the subjectivity and randomness shortcomings of the traditional classroom teaching quality evaluation methods, and improve the reliability, accuracy, and objectivity of fuzzy comprehensive evaluation. It is an effective method to evaluate college English classroom teaching quality.

  9. 基于GAP模型的轿车售后服务质量评价研究%A Study on the Evaluation of Car Post-sale Service Quality Based on GAP Model

    Institute of Scientific and Technical Information of China (English)

    陈力华; 杨亚莉

    2011-01-01

    在汽车售后服务质量理论研究的基础上,结合"GAP模型"和"SERVQUAL测量工具",采用层次分析法建立轿车售后服务质量评价模型.应用该模型对上海通用轿车售后服务质量进行评价.研究表明,售后服务质量与相应的服务费用是影响顾客满意度的主要因素.%On the basis of theoretical research on vehicle post-sale service quality, a model for evaluating post-sale service quality is established by using analytic hierarchy process, combined with “GAP model" and “SERVQUAL measurement tool".The model is applied to the evaluation on the post-sale service quality of Shanghai GM cars.It is also shown in evaluation that post-sale service quality and service cost are the main factors affecting customer satisfaction.

  10. Proposed Quality Evaluation Framework to Incorporate Quality Aspects in Web Warehouse Creation

    CERN Document Server

    Shah, Umm-e-Mariya; Shamim, Azra; Mehmood, Yasir

    2011-01-01

    Web Warehouse is a read only repository maintained on the web to effectively handle the relevant data. Web warehouse is a system comprised of various subsystems and process. It supports the organizations in decision making. Quality of data store in web warehouse can affect the quality of decision made. For a valuable decision making it is required to consider the quality aspects in designing and modelling of a web warehouse. Thus data quality is one of the most important issues of the web warehousing system. Quality must be incorporated at different stages of the web warehousing system development. It is necessary to enhance existing data warehousing system to increase the data quality. It results in the storage of high quality data in the repository and efficient decision making. In this paper a Quality Evaluation Framework is proposed keeping in view the quality dimensions associated with different phases of a web warehouse. Further more, the proposed framework is validated empirically with the help of quan...

  11. Quality Evaluation of Pharmaceutical Formulations Containing Hydrochlorothiazide

    Directory of Open Access Journals (Sweden)

    Marcelo Antonio de Oliveira

    2014-10-01

    Full Text Available Hydrochlorothiazide is a diuretic used to treat hypertension that belongs to class IV of the Biopharmaceutics Classification System. The drug was evaluated by quality control, thermal characterization tests, and pharmaceutical formulation compatibility studies. It was concluded that the generic drug, Lab 2, was not a pharmaceutical equivalent. The compounded drugs, Lab 5 and Lab 6, produced unsatisfactory but expected results, since there is no requirement for dissolution and dissolution profile testing for the commercialization of these products. In a compatibility study, lactose and mannitol were shown to be incompatible with HCTZ, which may explain the lack of equivalence of the generic pharmaceutical product, associated with other situations.

  12. Quality evaluation of pharmaceutical formulations containing hydrochlorothiazide.

    Science.gov (United States)

    de Oliveira, Marcelo Antonio; Yoshida, Maria Irene; Silva, Daphne Carina Gonçalves Monteiro da

    2014-10-20

    Hydrochlorothiazide is a diuretic used to treat hypertension that belongs to class IV of the Biopharmaceutics Classification System. The drug was evaluated by quality control, thermal characterization tests, and pharmaceutical formulation compatibility studies. It was concluded that the generic drug, Lab 2, was not a pharmaceutical equivalent. The compounded drugs, Lab 5 and Lab 6, produced unsatisfactory but expected results, since there is no requirement for dissolution and dissolution profile testing for the commercialization of these products. In a compatibility study, lactose and mannitol were shown to be incompatible with HCTZ, which may explain the lack of equivalence of the generic pharmaceutical product, associated with other situations.

  13. How to evaluate objective video quality metrics reliably

    DEFF Research Database (Denmark)

    Korhonen, Jari; Burini, Nino; You, Junyong

    2012-01-01

    The typical procedure for evaluating the performance of different objective quality metrics and indices involves comparisons between subjective quality ratings and the quality indices obtained using the objective metrics in question on the known video sequences. Several correlation indicators can...

  14. Research and application of a hybrid model based on dynamic fuzzy synthetic evaluation for establishing air quality forecasting and early warning system: A case study in China.

    Science.gov (United States)

    Xu, Yunzhen; Du, Pei; Wang, Jianzhou

    2017-04-01

    As the atmospheric environment pollution has been becoming more and more serious in China, it is highly desirable to develop a scientific and effective early warning system that plays a great significant role in analyzing and monitoring air quality. However, establishing a robust early warning system for warning the public in advance and ameliorating air quality is not only an extremely challenging task but also a public concerned problem for human health. Most previous studies are focused on improving the prediction accuracy, which usually ignore the significance of uncertainty information and comprehensive evaluation concerning air pollutants. Therefore, in this paper a novel robust early warning system was successfully developed, which consists of three modules: evaluation module, forecasting module and characteristics estimating module. In this system, a new dynamic fuzzy synthetic evaluation is proposed and applied to determine air quality levels and primary pollutants, which can be regarded as the research objectives; Moreover, to further mine and analyze the characteristics of air pollutants, four different distribution functions and interval forecasting method are also employed that can not only provide predictive range, confidence level and the other uncertain information of the pollutants future values, but also assist decision-makers in reducing and controlling the emissions of atmospheric pollutants. Case studies utilizing hourly PM2.5, PM10 and SO2 data collected from Tianjin and Shanghai in China are applied as illustrative examples to estimate the effectiveness and efficiency of the proposed system. Experimental results obviously indicated that the developed novel early warning system is much suitable for analyzing and monitoring air pollution, which can also add a novel viable option for decision-makers. Copyright © 2017 Elsevier Ltd. All rights reserved.

  15. Evaluation of hospital diagnosis and treatment quality based on the quality-evaluation model of STEMI%基于ST段抬高型心肌梗死质量评价模型的医院诊疗质量评估

    Institute of Scientific and Technical Information of China (English)

    杨柳; 陈晖; 闻思源; 马晓伟; 孟月莉; 饶克勤

    2015-01-01

    Objective To evaluate and compare the diagnosis and treatment quality of 15 tertiary hospitals in Beijing with the quality-evaluation model of STEMI.Methods The quality-evaluation model has been formatted with the document analysis method and expert consultation method,with the indicators weighted by analytic hierarchy process.By collecting the data of 15 hospitals,we can get the values of indicators,then synthetically evaluate and compare the diagnosis and treatment quality at these 15 hospitals with the method of WRSR.Results In the diagnosing and treating the cases of STEMI at the hospitals,gaps are found between the clinical guidelines and the tests,patient evaluation,reperfusion treatment and drug therapy,with some indicators falling even below 22%.Also,there are significant differences in the diagnosis and treatment quality among hospitals.All hospitals are consistent on the five dimensions-tests,patient evaluation,reperfusion treatment,drug therapy and prognosis.Conclusion The quality-evaluation model of STEMI can comprehensively reflect the diagnosis and treatment quality of cardiovascular medicine,and partly reflect hospital's overall management level,so as to provide operating methods in improving hospital diagnosis and treatment quality.%目的 利用ST段抬高型心肌梗死(ST EMI)质量评价模型对北京市15家三级医院进行诊疗质量的评价比较.方法 应用文献分析法和专家咨询法构建STEMI质量评价指标体系,运用层次分析法确定各指标的权重系数,在15家医院(H1~H15)进行数据采集,对其指标值进行评价,最终用加权秩和比法对医院的STEMI病例诊疗质量进行综合评价.结果 H1~H15家医院在STEMI病例的诊疗中,其检查检验、患者评估、再灌注治疗、药物治疗水平和临床指南的要求尚有一定差距,甚至某些指标的达标率低于22%;医院间诊疗水平差异度较大;各医院在检查检验、患者评估、再灌注治

  16. A Comparative Study on Evaluating the Service Quality Attributes based on Kano Model: A Case of Low-cost Carrier and Full-service Carrier

    Directory of Open Access Journals (Sweden)

    Byun Hyojeong

    2014-01-01

    Full Text Available The emergence and development of low-cost carriers(LCC with competitive price is heating up the competition in the aviation market more, especially between low-cost carriers(LCC and full-service carriers(FSC. Therefore, it became more important than ever to implement service differentiation strategies of each airline for securing customers and competitiveness. In this sense, the purpose of this study is to compare and assess the different expectations of the customers for airline service attributes pursued by FSCs and LCCs. Three main dimensions of airline service quality attributes (physical, human, and system service, were selected and this study clarified the service quality attributes of each airline carrier using Kano Model. Data were collected from Korean passengers who experienced both LCCs and FSCs for international or domestic flights. As results, this study demonstrated several differences in airline service quality attributes between FSCs and LCCs, which imply that each airline needs to adopt differential strategies to be more competitive. In particular, most physical-related attributes for FSCs were a ‘must-be’ dimension while the majority of attributes for LCCs was clarified ‘one-dimensional’ attribute. The current study also presented implications to be helpful in developing the quality of service and establishing marketing strategies for improvement in customer satisfaction.

  17. Decadal application of WRF/Chem for regional air quality and climate modeling over the U.S. under the representative concentration pathways scenarios. Part 1: Model evaluation and impact of downscaling

    Science.gov (United States)

    Yahya, Khairunnisa; Wang, Kai; Campbell, Patrick; Chen, Ying; Glotfelty, Timothy; He, Jian; Pirhalla, Michael; Zhang, Yang

    2017-03-01

    An advanced online-coupled meteorology-chemistry model, i.e., the Weather Research and Forecasting Model with Chemistry (WRF/Chem), is applied for current (2001-2010) and future (2046-2055) decades under the representative concentration pathways (RCP) 4.5 and 8.5 scenarios to examine changes in future climate, air quality, and their interactions. In this Part I paper, a comprehensive model evaluation is carried out for current decade to assess the performance of WRF/Chem and WRF under both scenarios and the benefits of downscaling the North Carolina State University's (NCSU) version of the Community Earth System Model (CESM_NCSU) using WRF/Chem. The evaluation of WRF/Chem shows an overall good performance for most meteorological and chemical variables on a decadal scale. Temperature at 2-m is overpredicted by WRF (by ∼0.2-0.3 °C) but underpredicted by WRF/Chem (by ∼0.3-0.4 °C), due to higher radiation from WRF. Both WRF and WRF/Chem show large overpredictions for precipitation, indicating limitations in their microphysics or convective parameterizations. WRF/Chem with prognostic chemical concentrations, however, performs much better than WRF with prescribed chemical concentrations for radiation variables, illustrating the benefit of predicting gases and aerosols and representing their feedbacks into meteorology in WRF/Chem. WRF/Chem performs much better than CESM_NCSU for most surface meteorological variables and O3 hourly mixing ratios. In addition, WRF/Chem better captures observed temporal and spatial variations than CESM_NCSU. CESM_NCSU performance for radiation variables is comparable to or better than WRF/Chem performance because of the model tuning in CESM_NCSU that is routinely made in global models.

  18. Evaluating the quality of analytic ratings with Mokken scaling

    Directory of Open Access Journals (Sweden)

    Stefanie A. Wind

    2015-09-01

    Full Text Available Greatly influenced by the work of Rasch (1960/1980, Mokken (1971 presented a nonparametric scaling procedure that is based on the theory of invariant measurement, but draws upon less strict requirements related to the scale of measurement. Because they are theoretically and empirically related to Rasch models, Mokken’s nonparametric models have been recognized as a useful exploratory tool for examining data in terms of the basic requirements for invariant measurement before the application of a parametric model. In particular, recent research has explored the use of polytomous versions of Mokken’s (1971 nonparametric scaling models as a technique for evaluating the quality of holistic ratings (Wind & Engelhard, in press and rating scales (Wind, 2014 for performance assessments in terms of the requirements for invariant measurement. The current study continues the extension of Mokken scaling to performance assessments by exploring the degree to which Mokken-based rating quality indices can be used to explore the quality of ratings assigned within domains on an analytic rubric. Using an illustrative analysis, this study demonstrates the use of a generalized rating design to explore the quality of analytic ratings within the framework of Mokken scaling. Findings from the illustrative analysis suggest that a generalized rating design can be used to examine the quality of analytic ratings in terms of the requirements for invariant measurement.

  19. Evaluation of Topographic Error and Quality with Stereophotoclinometry

    Science.gov (United States)

    Palmer, Eric; Weirich, John; Campbell, Tanner; Lambert, Diane; Drozd, Kristofer

    2016-10-01

    One of the primary means to evaluate the accuracy of a shape model is to measure the deviation between a truth model (if available) and the shape model. Typically, this is done by calculating the square root of the average error squared of all the points, i.e the root mean squared error (RMS).This technique provides valuable insight into the error distribution of a shape model, as well as providing an objective measurement of deviations. However, it does not fully explain the error and especially the quality of a digital terrain model. Systematic errors can obscure poorly performing regions and may over-report errors.We have begun an extensive analysis of using normalized cross-correlation to evaluate the quality of shape models compared to truth topography, as well as the agreement between images rendered from the model with the original images. This technique provides a tool to differentiate between local accuracy and global accuracy. It also provides an effective way to decompose the error vector into horizontal and vertical displacements. It is especially useful for stereophotoclinometry (SPC) because it allows a clear determination of the quality of the model at the resolution of the source images (i.e. if the source images have a 5cm pixel size, it shows how well the SPC solution is at 5cm). Additionally, it demonstrates how essential a good imaging plan is to the quality of the shape model.We are using these techniques in support of the OSIRIS-REx mission to the asteroid Bennu.

  20. Econometric Model Evaluation: Implications for Program Evaluation.

    Science.gov (United States)

    Ridge, Richard S.; And Others

    1990-01-01

    The problem associated with evaluating an econometric model using values outside those used in the model estimation is illustrated in the evaluations of a residential load management program during each of two successive years. Analysis reveals that attention must be paid to this problem. (Author/TJH)

  1. Image quality evaluation of light field photography

    Science.gov (United States)

    Fu, Qiang; Zhou, Zhiliang; Yuan, Yan; Xiangli, Bin

    2011-01-01

    Light field photography captures 4D radiance information of a scene. Digital refocusing and digital correction of aberrations could be done after the photograph is taken. However, capturing 4D light field is costly and tradeoffs between different image quality metrics should be made and evaluated. This paper explores the effects of light field photography on image quality by quantitatively evaluating some basic criteria for an imaging system. A simulation approach was first developed by ray-tracing a designed light field camera. A standard testing chart followed by ISO 12233 was provided as the input scene. A sequence of light field raw images were acquired and processed by light field rendering methods afterwards. Through-focus visual resolution and MTF were calculated and analyzed. As a comparison, the same tests were taken for the same main lens system as the results of conventional photography. An experimental light field system was built up and its performance was tested. This work helps better understanding the pros and cons of light field photography in contrast with conventional imaging methods and perceiving the way to optimize the joint digital-optical design of the system.

  2. A Rotational Blended Learning Model: Enhancement and Quality Assurance

    Science.gov (United States)

    Ghoul, Said

    2013-01-01

    Research on blended learning theory and practice is growing nowadays with a focus on the development, evaluation, and quality assurance of case studies. However, the enhancement of blended learning existing models, the specification of their online parts, and the quality assurance related specifically to them have not received enough attention.…

  3. 基于物元分析法的沱江地表水水质评价%Application of matter-element model in the water quality evaluation of Tuojiang River

    Institute of Scientific and Technical Information of China (English)

    肖玖金; 谭周亮; 李旭东; 王红磊

    2011-01-01

    利用物元分析法构建地表水环境质量评价综合物元模型,对沱江出水口2000-2008年的水环境质量进行评定.结果表明,沱江出水口地表水水质除2002-2004年超过地表水Ⅲ类标准外,其余年均能达到表水Ⅲ类标准.2008年水质变化分析显示,丰水期和枯水期的水质均能满足地表水Ⅲ类标准要求,但在平水期个别月份水质仍有超标现象发生.对物元分析法和模糊评价法的评价结果比较显示,两种方法评价结果基本吻合,与监测资料取得了较好的一致性.%Based on the water quality monitoring data ( including pH, DO, permanganate index, BOD5, NH3 - N, oils and volatile pheno lic compounds) ranging from 2000 to 2008 and the water environment quality standard (GB 3838—2002 ), an integrated mater-element model was established for the evaluation of surface water environ ment. This integrated model was used to assess the environmental quality of Tuojiang River, which is one of the most important rivers in Sichuan province. The results showed the water quality satisfied grade III water quality standard (GB 3838—2002) except for the period from 2002 to 2004. The percentage of grade Ⅱ and grade Ⅳ water quality is 66.7% and 33.3%, respectively. No grade Ⅰ, grade Ⅲ and grade V water quality were identified during the studied years. NH3 - N and oils were the dominant pollutants which led to two seri ous pollution events in March and April, 2004. In order to study the seasonal water quality changes and compare the different evaluation methods of Tuojiang River, the data of 2008 was further analyzed. The results showed the water quality in wet period and dry period sat isfied grade Ⅲ water quality, except for the certain months where grade Ⅲ water quality was exceeded during level period. Meanwhile, compared with the results of fuzzy synthetic evaluation on Tuojiang River surface water quality, the data showed good agreement with that of the matter

  4. Undergraduate self-evaluation process for obtainment of quality accreditation

    Directory of Open Access Journals (Sweden)

    Silvia de Marenco

    2013-11-01

    Full Text Available The Law 80 of 1992 regulates, directs and defines politics concerning High Education in Colombia. It appeared conveniently in a moment when modernizing of the State and recognition of University Autonomy was required. Self-evaluation of University Academic Programs is a constant exercise, pointing towards quality improvement and obtainment of accreditation. Being the latter core of the university reflection, its process is analytic, interpretative, and comprehensive and takes decisions. This process is accomplished with support of the tasks that facilitate formative learning and, in addition, is receptive and ready to carry out the institution’s integral transformation. It also implies teachers who are permanently advancing in their profession. As a result, self-evaluation centred in teachers produces an innovated style that influences professional practice transformation, due that it develops reflection about nowadays social and scientific demands. A successful accomplishment of self-evaluation requires the institution to take for granted its leadership in favouring a broad participation of its academic community, maintaining the culture of quality evaluation and integral labour, besides the recognition of criteria, characters, variables and quality indicators. The former mentioned are present in the “Lineaments for accreditation”, a document belonging to the “National Council of Accreditation”, in its second edition. It is moreover useful to consider the model design, the structured improvement politics towards quality, all defined by the university direction board.  

  5. User-Centered Evaluation of the Quality of Blogs

    Science.gov (United States)

    Chuenchom, Sutthinan

    2011-01-01

    Blogs serve multiple purposes, resulting in several types of blogs that vary greatly in terms of quality and content. It is important to evaluate the quality of blogs, which requires appropriate evaluation criteria. Unfortunately, there are minimal studies on framework and the specific criteria and indicators for evaluating the quality of blogs.…

  6. Research on the Evaluation of Marine Environmental Quality by Using the GIS Technology

    Institute of Scientific and Technical Information of China (English)

    王立华; 李继龙; 葛常水; 李小恕; 贾静; 黄其泉

    2004-01-01

    Based on the biological resources surveys in China's exclusive economic zone, the paper discusses the application of the GIS technology in evaluating the marine environmental quality, establishes the basic concept and technological process for evaluating the environmental quality of the habitats of marine living resources, proposes the key points for the establishment of the relevant evaluationattributes database by applying the GIS technology and analyses several typical evaluation models and the data interpolation method for the model in GIS. Results show that the combination of the GIS technology with the quantitative evaluation model can be applied to the fast and accurate evaluation of the marine environmental quality.

  7. Integral Criteria for Measuring the Quality of Teacher Evaluation

    Directory of Open Access Journals (Sweden)

    Olga Navickienė

    2012-07-01

    Full Text Available Purpose—To construct the knowledge evaluation quality integral criteria, which allows to ascertain whether the different teachers properly assess the students’ knowledge. The criteria has been tested setting up the educational experiment and examining the six mathematics lecturers’ assessments.Design/methodology/approach—This research involved the Mykolas Romeris University students of Public Administration degree second year and Management of Organizations degree first year. The test questions for students were designed using the mathematical knowledge assessment information system, which allows for closed-ended mathematical test, to obtain statistical data about test takers, to perform quality analysis of the test; in the middle and the end of the semester.Findings—The construction technique for the evaluation quality criteria of the students’ working results assessment, which were performed by six different lecturers, during practical trainings, seminars, laboratory and other sessions is proposed in this article.Research limitations/implications—The constructed evaluation criteria is universal: it does not depend on the particular subject; it can be applied to several groups, courses or lecturers. It depends on three calculated indicators I, S, K, which show in two ways obtained estimates of the measured information compatibility of degrees, marks matching and correlation terms.Practical implications—The integral criteria has been tested examining the six mathematics lecturers’ assessments.Originality/Value—Constructing the criteria have been used the educational measurement models of authors of this article and other researchers, however its’ connection to general (integral criteria, best of authors’ knowledge, is original and have not be researched before.Keywords: knowledge evaluation, quality of teacher evaluation, evaluation of teachers, mathematical modeling.Research type: research paper.

  8. A Study of Evaluation System of Restricting Factors in Training Students' Qualities

    Institute of Scientific and Technical Information of China (English)

    MA Xiao-yan

    2002-01-01

    This paper studies evaluation system of restricting factors in training students' qualities by modern mathematical method of analysis hierarchy process and principal factor analysis, and to build up a mathematical model of evaluation system.

  9. Data Acquisition for Quality Loss Function Modelling

    DEFF Research Database (Denmark)

    Pedersen, Søren Nygaard; Howard, Thomas J.

    2016-01-01

    Quality loss functions can be a valuable tool when assessing the impact of variation on product quality. Typically, the input for the quality loss function would be a measure of the varying product performance and the output would be a measure of quality. While the unit of the input is given by t...... by the product function in focus, the quality output can be measured and quantified in a number of ways. In this article a structured approach for acquiring stakeholder satisfaction data for use in quality loss function modelling is introduced.......Quality loss functions can be a valuable tool when assessing the impact of variation on product quality. Typically, the input for the quality loss function would be a measure of the varying product performance and the output would be a measure of quality. While the unit of the input is given...

  10. Data Acquisition for Quality Loss Function Modelling

    DEFF Research Database (Denmark)

    Pedersen, Søren Nygaard; Howard, Thomas J.

    2016-01-01

    Quality loss functions can be a valuable tool when assessing the impact of variation on product quality. Typically, the input for the quality loss function would be a measure of the varying product performance and the output would be a measure of quality. While the unit of the input is given by t...... by the product function in focus, the quality output can be measured and quantified in a number of ways. In this article a structured approach for acquiring stakeholder satisfaction data for use in quality loss function modelling is introduced.......Quality loss functions can be a valuable tool when assessing the impact of variation on product quality. Typically, the input for the quality loss function would be a measure of the varying product performance and the output would be a measure of quality. While the unit of the input is given...

  11. QUALITY EVALUATION OF THE TPP POWER GENERATING UNITS WEAR RECONDITIONING

    Directory of Open Access Journals (Sweden)

    E. M. Farhadzadeh

    2016-01-01

    Full Text Available Reconditioning of the power generating unit worn equipment and devices is conducted during the scheduled repair period. Quality of wear reconditioning is evaluated by technical state and repair work implementation. Quality of the repair work execution characterizes logistical activities of the power station and the repair services and is rated by a five-grade scale. There are three technical conditions: adequate, subject to reservations, falling short of the technical standard documentation requirements. In practical work these constraints give place to essential ambiguity of the decision. Further to regulating techniques by way of informational support, the authors propose conducting the wear-reconditioning quality evaluation (repair quality accordingly the technical-and-economic indexes pattern of change. The paper recommends applying similarly the fivegrade system in evaluating the power generating unit technical state and distinguishes intolerable, dissatisfactory, fair, good and model estimates. The study demonstrates the assessment criteria dependence on the character of reliability and economical efficiency of performance variation after the repair with increase or decrease of the technical-and-economic indexes in reference to their mean, minimum and maximum values before the repair. The cases ascribed to intolerable quality of the wear reconditioning are those with one or more technical-and-economic indexes that not only failed to improve their values but deteriorated, and at that they became the worst amongst observable values. The model quality estimate of the wear reconditioning is allotted under condition that the power unit technical-and-economic index valuations after the repair not merely improved but also exceeded the best among those under observation. The developed method and algorithm for quality evaluation of the scheduled repair implementation contribute to practical realization of the independent monitoring. This monitoring

  12. Fuzzy Model for Trust Evaluation

    Institute of Scientific and Technical Information of China (English)

    Zhang Shibin; He Dake

    2006-01-01

    Based on fuzzy set theory, a fuzzy trust model is established by using membership function to describe the fuzziness of trust. The trust vectors of subjective trust are obtained based on a mathematical model of fuzzy synthetic evaluation. Considering the complicated and changeable relationships between various subjects, the multi-level mathematical model of fuzzy synthetic evaluation is introduced. An example of a two-level fuzzy synthetic evaluation model confirms the feasibility of the multi-level fuzzy synthesis evaluation model. The proposed fuzzy model for trust evaluation may provide a promising method for research of trust model in open networks.

  13. Developing a TQM quality management method model

    NARCIS (Netherlands)

    Zhang, Zhihai

    1997-01-01

    From an extensive review of total quality management literature, the external and internal environment affecting an organization's quality performance and the eleven primary elements of TQM are identified. Based on the primary TQM elements, a TQM quality management method model is developed. This mo

  14. Developing a TQM quality management method model

    NARCIS (Netherlands)

    Zhang, Zhihai

    1997-01-01

    From an extensive review of total quality management literature, the external and internal environment affecting an organization's quality performance and the eleven primary elements of TQM are identified. Based on the primary TQM elements, a TQM quality management method model is developed. This mo

  15. Developing a TQM quality management method model

    NARCIS (Netherlands)

    Zhang, Zhihai

    1997-01-01

    From an extensive review of total quality management literature, the external and internal environment affecting an organization's quality performance and the eleven primary elements of TQM are identified. Based on the primary TQM elements, a TQM quality management method model is developed. This

  16. Quality of peas modelled by a structural equation system

    DEFF Research Database (Denmark)

    Bech, Anne C.; Juhl, Hans Jørn; Martens, Magni

    2000-01-01

    The quality of peas has been studied in a joint project between a pea producing company in Denmark and several research institutions. The study included quality from a consumer point of view based on market research and quality from more internal company points of view based on measurement...... expressed by consumers as a function of the objective measurements of quality, eg the physical/chemical variables? (3) Which of the measured objective variables are most important for further product development? In the paper we describe consumer evaluations as a function of physical/chemical variables...... in a PLS structural model with the Total Food Quality Model as starting point. The results show that texture and flavour do have approximately the same effect on consumers' perception of overall quality. Quality development goals for plant breeders would be to optimse perceived flavour directly...

  17. An Overview of Atmospheric Chemistry and Air Quality Modeling

    Science.gov (United States)

    Johnson, Matthew S.

    2017-01-01

    This presentation will include my personal research experience and an overview of atmospheric chemistry and air quality modeling to the participants of the NASA Student Airborne Research Program (SARP 2017). The presentation will also provide examples on ways to apply airborne observations for chemical transport (CTM) and air quality (AQ) model evaluation. CTM and AQ models are important tools in understanding tropospheric-stratospheric composition, atmospheric chemistry processes, meteorology, and air quality. This presentation will focus on how NASA scientist currently apply CTM and AQ models to better understand these topics. Finally, the importance of airborne observation in evaluating these topics and how in situ and remote sensing observations can be used to evaluate and improve CTM and AQ model predictions will be highlighted.

  18. 基于 SERVQUAL和 LSQ模型的邮政EMS快递服务质量模糊评价研究%Fuzzy Evaluation Research on Express Service Quality for EMS Express based on SERVQUAL and LSQ Model

    Institute of Scientific and Technical Information of China (English)

    党玮; 王海瑞; 胡海晨

    2016-01-01

    随着我国市场经济的发展, 服务质量越来越成为快递企业竞争的关键因素. 本文设计了由22个指标构成的网购环境下的快递服务质量评价体系, 将SERVQUAL和LSQ模型运用到网购的快递服务业, 通过调查问卷和因子分析从7个维度来评价快递服务质量, 通过建立适用于网购环境下的评价模型, 用模糊方法对EMS公司进行评价, 并根据评价结果对每一维度提出改善网购快递服务质量的路径, 以期提升邮政EMS快递业服务质量水平.%With the development of market economy in China, the quality of service is increasingly becoming the key factor for the competition of express enterprises.This paper designs the quality evaluation system composed of 22 indica-tors and the SERVQUAL and LSQ models are used to express service industry.By questionnaire survey and factor analy-sis, the paper evaluates quality of service delivery from the seven dimensions and through the establishment of evaluation model suitable for online environment, it puts forward path to improve the service quality of online shopping express ac-cording to the evaluation results of each dimension, in order to enhance Postal EMS Express delivery service quality lev-el.

  19. Nursing effect evaluation of neonatal whole quality nursing model%新生儿全程优质护理模式的护理效果评价

    Institute of Scientific and Technical Information of China (English)

    李茜; 宋洪玉

    2016-01-01

    Objective:To explore the nursing effect of neonatal whole quality nursing model.Methods:140 healthy newborns were selected.They were divided into the control group and the nursing group with 70 cases in each.The patients in the control group were given routine nursing.The patients in the nursing group were given whole quality nursing.We compared the nursing effect of two groups.Results:In the nursing group,neonatal physical development,psychomotor development index,mental development index,family satisfaction and higher bilirubin occurrence rate were significantly better than those of the control group(P<0.05). Conclusion:Whole quality nursing model can promote the newborn physique,exercise and mental development.It can reduce the incidence of hyperbilirubinemia,and parent satisfaction was high.%目的:探讨新生儿全程优质护理模式的护理效果。方法:收治健康新生儿140例,分为对照组和护理组各70例。对照组采用常规护理,护理组采用全程优质护理,比较两组护理效果。结果:护理组新生儿体格发育情况、运动发育指数、智力发育指数、家属满意度及高胆红素发生率均明显优于对照组(P<0.05)。结论:全程优质护理模式可促进新生儿体格、运动及智力的发育,并可降低高胆红素血症的发生率,家长满意度高。

  20. Update of air quality maps in the Netherlands. Evaluation of the RIO Interpolation Model; Actuele luchtkwaliteitskaarten in Nederland. Evaluatie RIO-Interpolatiemodelq

    Energy Technology Data Exchange (ETDEWEB)

    Mooibroek, D.; Hoogerbrugge, R. [Centrum voor Milieukwaliteit, Rijksinstituut voor Volksgezondheid en Milieu RIVM, Bilthoven (Netherlands)

    2013-12-15

    In Belgium, an interpolation technique has been developed that takes into account local conditions of air pollution: the RIO interpolation technique. The RIO interpolation model is used in Belgium to inform the public about the current air quality. Realtime RIO air quality maps for Belgium are published on the website of IRCEL (www.irceline.be). In 2009, the RIO-interpolation method was extended by VITO and adjusted such that it became possible to apply the model in the Netherlands. This article gives a brief introduction of this new interpolation technique for the Netherlands, and a comparison of the performance compared to the INTERPOL method used until now [Dutch] In Belgie is een interpolatietechniek ontwikkeld die rekening houdt met het lokale karakter van luchtverontreiniging: de RIO-interpolatietechniek. Het RIO-interpolatiemodel wordt in Belgie gebruikt om het publiek te informeren over de actuele luchtkwaliteit. Realtime RIO-luchtkwaliteitskaarten voor België worden gepubliceerd op de website van IRCEL (www.irceline.be). In 2009 werd de RIO-interpolatiemethode in opdracht van het RIVM door VITO uitgebreid en aangepast, zodanig dat ook toepassing in Nederland mogelijk werd. Dit artikel geeft een korte introductie van deze nieuwe interpolatietechniek voor Nederland en een vergelijking van de prestaties ten opzichte van de tot nu gebruikte methode INTERPOL.

  1. An Evaluation of Output Quality of Machine Translation (Padideh Software vs. Google Translate)

    Science.gov (United States)

    Azer, Haniyeh Sadeghi; Aghayi, Mohammad Bagher

    2015-01-01

    This study aims to evaluate the translation quality of two machine translation systems in translating six different text-types, from English to Persian. The evaluation was based on criteria proposed by Van Slype (1979). The proposed model for evaluation is a black-box type, comparative and adequacy-oriented evaluation. To conduct the evaluation, a…

  2. Evaluation Theory, Models, and Applications

    Science.gov (United States)

    Stufflebeam, Daniel L.; Shinkfield, Anthony J.

    2007-01-01

    "Evaluation Theory, Models, and Applications" is designed for evaluators and students who need to develop a commanding knowledge of the evaluation field: its history, theory and standards, models and approaches, procedures, and inclusion of personnel as well as program evaluation. This important book shows how to choose from a growing…

  3. Cost of Quality Evaluation Methodologies Handbook

    Science.gov (United States)

    1988-07-28

    manu- 2-7 ... . ., I I facturing inefficiency, and foster quality and productivity improvement." MIL-STD-1520C Paragraph 5.7.4 Nonconformance costs...1979 ALFORD REX E 126. QALITX COSTO - WNZR T STT PhR III QUALITY 40-42 1979 ALFORD REX E 127.QUALITY COST8 - WHZE _W START, PART QUALITY 36-37 1979

  4. Evaluation of a regional air quality forecast model for tropospheric NO2 columns using the OMI/Aura satellite tropospheric NO2 product

    Directory of Open Access Journals (Sweden)

    J. K. Vaughan

    2010-09-01

    Full Text Available Results from a regional air quality forecast model, AIRPACT-3, are compared to OMI tropospheric NO2 integrated column densities for an 18 month period over the Pacific Northwest. AIRPACT column densities are well correlated (r=0.75 to cloud-free (2 for monthly averages without wildfires, but are poorly correlated (r=0.21 with significant model over-predictions for months with wildfires when OMI and AIRPACT are compared over the entire domain. AIRPACT predicts higher NO2 in some northwestern US urban areas, and lower NO2 in the Vancouver, BC urban area, when compared to OMI. Model results are spatially averaged to the daily OMI swath. The Dutch KNMI (DOMINO and NASA (Standard Product retrievals of tropospheric NO2 from OMI (Collection-3 are compared. The NASA product is shown to be significantly different than the KNMI tropospheric NO2 product. The average difference in tropospheric columns, after applying the averaging kernels of the respective products to the model results, is shown to be larger in the summer (±50% than winter (±20%.

  5. Business Process Modelling for Measuring Quality

    NARCIS (Netherlands)

    Heidari, F.; Loucopoulos, P.; Brazier, F.M.

    2013-01-01

    Business process modelling languages facilitate presentation, communication and analysis of business processes with different stakeholders. This paper proposes an approach that drives specification and measurement of quality requirements and in doing so relies on business process models as

  6. Business Process Modelling for Measuring Quality

    NARCIS (Netherlands)

    Heidari, F.; Loucopoulos, P.; Brazier, F.M.

    2013-01-01

    Business process modelling languages facilitate presentation, communication and analysis of business processes with different stakeholders. This paper proposes an approach that drives specification and measurement of quality requirements and in doing so relies on business process models as represent

  7. Service Quality Evaluation and Ranking of Container Terminal Operators

    Directory of Open Access Journals (Sweden)

    Jafar Sayareh

    2016-12-01

    Full Text Available In the service industry, the regular assessment of service quality is considered as a means of promoting the quality of services. Container market is no exception, and the quality of providing service in a container terminal is of prime importance in attracting new customers and maintaining the existing ones. The main aim of present research is to evaluate the quality of service being offered at Shahid Rajaee Container Terminal (SRCT in Bandar Abbas port. The evaluation process uses SERVQUAL model which is an appropriate tool for measuring the service quality, identifying and analyzing available gaps between service expectations and perceptions. Target population in this research includes customers of SRCT. The standard and customized questionnaires were distributed among 165 samples, out of which 127 (77% were returned. For the purpose of data analyses, initially the reliability of SERVQUAL model was checked, and then paired sample t-test was performed to reveal any possible gap between expectations and perceptions of respondents. Finally, TOPSIS was used to rank the 9 main container service companies in the SRCT. The results indicated that there are significant gaps between customers’ expectations and perceptions in SRCT, in all five dimensions of services quality. Additionally, from weighing point of view, ‘Tangibles’ was the most important dimension, followed by ‘Reliability’, ‘Assurance’, ‘Responsiveness’ and ‘Empathy’. In addition, ‘Tangibles’ dimension had maximum gap and ‘Empathy’ dimension had minimum gap between customers’ expectations and perceptions. Finally, after ranking companies, BandarAbbas Aria Container Terminal (BACT Company was ranked first among nine companies in satisfying customers’ expectations.

  8. Approaches to verification of two-dimensional water quality models

    Energy Technology Data Exchange (ETDEWEB)

    Butkus, S.R. (Tennessee Valley Authority, Chattanooga, TN (USA). Water Quality Dept.)

    1990-11-01

    The verification of a water quality model is the one procedure most needed by decision making evaluating a model predictions, but is often not adequate or done at all. The results of a properly conducted verification provide the decision makers with an estimate of the uncertainty associated with model predictions. Several statistical tests are available for quantifying of the performance of a model. Six methods of verification were evaluated using an application of the BETTER two-dimensional water quality model for Chickamauga reservoir. Model predictions for ten state variables were compared to observed conditions from 1989. Spatial distributions of the verification measures showed the model predictions were generally adequate, except at a few specific locations in the reservoir. The most useful statistics were the mean standard error of the residuals. Quantifiable measures of model performance should be calculated during calibration and verification of future applications of the BETTER model. 25 refs., 5 figs., 7 tabs.

  9. Evaluation of a malting barley quality assessment system

    NARCIS (Netherlands)

    Lonkhuijsen, H.J. van; Douma, A.C.; Angelino, S.A.G.F.

    1998-01-01

    New malting barley varieties are annually tested for their malting and brewing potential according to a field trial set-up combined with quality evaluation on pilot scale. To assess the effects of trial year and location on quality evaluation data, a data base consisting of quality data from Dutch

  10. Evaluation of a malting barley quality assessment system

    NARCIS (Netherlands)

    Lonkhuijsen, H.J. van; Douma, A.C.; Angelino, S.A.G.F.

    1998-01-01

    New malting barley varieties are annually tested for their malting and brewing potential according to a field trial set-up combined with quality evaluation on pilot scale. To assess the effects of trial year and location on quality evaluation data, a data base consisting of quality data from Dutch m

  11. Study on Entropy Weight Coefficient Method and Application for Water Quality Evaluation

    Institute of Scientific and Technical Information of China (English)

    MEN Bao-hui; FU Qiang; ZHAO Xie-jing

    2004-01-01

    In order to evaluate the quality of water environment, the conception of entropy is applied in information science, and the entropy weight model is built to evaluate comprehensively water quality. The indexes weights of water quality are determined by value of entropy. This kind of method is applied on evaluating water quality in the new water to be built. The result shows that the water quality in it which supply water is between grade Ⅲ and Ⅳ, and the result is similar to that of gray related method.

  12. Application of general model of LM-BP neural network for comprehensive evaluation of water quality%水质综合评价的LM-BP神经网络通用模型应用

    Institute of Scientific and Technical Information of China (English)

    崔东文

    2013-01-01

    分析BP神经网络应用于水质评价中存在的问题和目前水质评价中的不足,基于地表水环境质量分级标准和L-M算法原理,提出LM-BP神经网络水质综合评价通用模型。利用随机内插方法在地表水环境质量分级标准阈值间生成训练样本和检验样本,采用顺序和随机两种方法选取训练样本和检验样本进行随机模拟;利用平均相对误差、最大相对误差等统计指标评价LM-BP模型性能,并构建传统BP 、RBF模型作为对比模型;以某水质评价实例进行模型验证,并与灰色关联分析法、模糊综合评判法和TOPSIS法评价结果进行比较。结果表明:LM-BP通用模型具有评价精度高、泛化能力强、收敛速度快、算法稳定和通用性能好等优点,可应用于任意水质评价。在实际应用中仅需对通用模型的评价因子、输入维数和隐含层神经元数进行删减即可满足评价要求。%Existing problems and shortcomings in water quality evaluation using the BP neural network were analyzed. Based on surface water environmental quality grading standards and the principle of the L-M algorithm, a general model of the LM-BP neural network was developed for comprehensive assessment of water quality. First, the random interpolation method was used to generate training and testing samples at the surface water environmental quality grading standard threshold, and the order and random methods were used to select training and testing samples for random simulation. Then, statistical indices such as the average relative error and the maximum relative error were used to evaluate the performance of the LM-BP model, and the traditional BP and RBF models were constructed as the contrast models. Finally, the model was applied to water quality evaluation in a case study and compared with the gray correlation analysis method, fuzzy comprehensive evaluation method, and TOPSIS method. The results show that the

  13. 层次分析法与可变模糊集耦合的水环境质量评价模型%A water quality evaluation model based on AHP and variable fuzzy set

    Institute of Scientific and Technical Information of China (English)

    张智; 浦鹏; 王敏

    2014-01-01

    To provide objective and comprehensive evaluation of surface water environmental quality for management and engineering projects ,a Fuzzy-AHP evaluation model is introduced .Level 1 is comprised of several current evaluation systems .On level 2 ,variable fuzzy set is introduced to evaluate the accurate grade .The model is applied to evaluate Jialing River (Ciqikou section) ,and evaluation result is grade III , which is reasonable and reliable . The model is well-developed and physically grounded , makes use of information of monitoring data more scientifically and comprehensively , and provides an alternative evaluation method for water quality assessment .%为了更为客观、综合地评价水环境质量,加强流域环境管理与可持续发展,为工程提供更为可靠的决策依据,建立了基于层次分析法与模糊可变集的水环境质量评价模型。其中一级结构为若干个现有的广泛应用的评估体系,二级结构中引入可变模糊集理论,得到所对应的一级结构中指标的级别特征值。以嘉陵江磁器口段某采样点的水样为例,用模型进行了计算。计算结果为嘉陵江水环境质量等级为III级,结果合理且可靠,模型结构清晰,物理概念明确,对水质数据的利用更科学,为水环境质量综合评价提供新思路。

  14. Discovering the Future: Modelling Quality Matters

    NARCIS (Netherlands)

    Tijskens, L.M.M.

    2004-01-01

    Quality of agricultural products becomes increasingly important to consumers, and hence to producers and retailers. Quality, however, is il! defined and perceived and evaluated differently by different individuals, or by groups of individuals. Based on problem decomposition, a working theory on qual

  15. Establishment of Evaluation Model of O2O Platform Service Quality Based on SERVQUAL Scale%基于SERVQUAL量表建立药店O2O平台服务质量评价模型

    Institute of Scientific and Technical Information of China (English)

    张歆衍; 吴虹; 陈永法; 孙亮亮; 王伟

    2016-01-01

    OBJECTIVE:To establish a pharmacy online to offline (O2O) platform service quality evaluation model,and to provide reference for platform operators to improve the service quality. METHODS:Using SERVQUAL scale,combining the situa-tion of pharmacy O2O platform development in China,the reliability,safety and aspects of O2O platform were analyzed to sum up primary evaluation index of pharmacy O2O platform service quality. Based on this,the expert interviews questionnaire was de-signed. According to the questionnaire results,indicators were modified and empowered to construct the pharmacy O2O platform service quality evaluation model;the reliability and validity of model were validated. RESULTS & CONCLUSIONS:According to the connotations of each dimension analysis in the SERVQUAL scale and expert interview results of pharmacy O2O platform ser-vice quality,pharmacy O2O platform service quality evaluation model is constructed,including five indicators as“reliability”“se-curity”,and 18 secondary indexes as the“number of platform pharmacy”“pharmacy qualification show”“pharmacy type”. The re-sults of model index reliability and validity verification show that model construction is reasonable and can provide reference for platform operators improving service quality. Follow-up research should give full consideration to the Chinese consumer behavior habits,personal preferences and other factors to build more suitable pharmacy O2O platform service quality evaluation model in China.%目的:建立药店线上到线下(O2O)平台服务质量评价模型,为平台经营者提高服务质量提供参考。方法:运用SERVQUAL量表,结合我国药店O2O平台的发展现状,分析其服务在可靠性、安全性等方面的内涵,归纳出药店O2O平台服务质量的初级评价指标;在此基础上设计专家访谈问卷,根据问卷结果对各项指标进行修改和赋权,构建出药店O2O平台服务质量评价模型

  16. 电力大数据质量评价模型及动态探查技术研究%Research for electric power big data quality evaluation model and dynamic exploration technology

    Institute of Scientific and Technical Information of China (English)

    陈超

    2014-01-01

    For the status quo of bad electric power data quality caused by mass data,complex species,multi-profession in-volvement and so on,quality inspection,quality control and quality assessment in the flow process of the data from the data cen-ter are studied based on metadata,data quality and data modeling theories,and cause analysis of poor data quality. The electric power big data quality evaluation index system was built. The real-time monitoring,rapid motion detection methods and key tech-nologies of the electric power big data quality were researched. The data quality control and assessment system model suitable for the power big data are proposed in thispaper. The development of a data quality control platform was achieved. It ensured the data quality of the enterprise and raised the value of data applications.%针对电力数据数量多、种类庞杂、横跨专业多等特点而引起的数据质量不高的现状,该项目以数据中心数据为研究对象,通过分析产生数据质量问题的原因,以元数据、数据质量、数据建模等理论为基础,对数据流动过程中的质量检查、质量控制和质量评估等进行深入的研究。构建电力大数据质量评价指标体系,研究电力大数据质量实时监控、快速动态检测方法与关键技术,提出了适合于电力大数据数据质量控制与评估体系模型,实现数据质量管控平台开发,确保企业数据质量,提升数据应用价值。

  17. A Cost-of-Quality Model at El Camino College.

    Science.gov (United States)

    Miller, Timothy D.

    1994-01-01

    This article describes the cost-of-quality model used at El Camino College (California), which formally measures the costs associated with process improvement activities. A case study illustrates use of the model in evaluating a new process for reimbursing faculty and staff attending conferences. (DB)

  18. The Quality Evaluation of Property Service Based on SERVQUAL Model-A Nanjing City Perspective%基于SERVQUAL模型的物业服务质量测评--以南京市为例

    Institute of Scientific and Technical Information of China (English)

    韩雷杰; 唐学玉; 仝泽强

    2013-01-01

    With the development of real estate market,the quality of property service has been a hot issue in both industry and academy. Effective quality evaluation of property service has important realistic meanings to improve the level of property service and to increase owners’ satisfaction. Based on the SERVQUAL model,the article builds the service quality evaluation system of property enterprises,and evaluates the quality of property service through the questionnaire taking those residents in Nanjing as the study samples. The results show that the overall level of property service in Nanjing is the average. Dimensions of reliability and responsiveness have the most important influence on the quality of property service. Differences in the grades of property management fee cause significant differences in the quality of property service,and the higher the grade of property is,the higher the integral evaluation of the service quality will be. Finally,according to the conclusions,this paper puts forward related suggestions for improving the property service quality.%随着房地产市场的日渐成熟,物业服务质量问题已经成为企业界和学术界关注的热点问题,物业服务质量的有效测评对于提高物业企业服务水平和业主满意度具有重要的现实意义。以SERVQUAL模型为理论依据,构建了物业服务质量评价体系,并以南京市住户为研究样本,通过问卷调查的方式对物业服务质量进行测评。结果表明南京市物业服务整体水平一般;可靠性和响应性维度对物业服务质量的影响最为显著;在不同的物业档次下,物业服务质量具有显著的差异,档次越高的物业,住户对物业服务质量的整体评价也越高。最后,根据研究结论,提出改进物业服务质量的相关建议。

  19. Research of Evaluating Flour Quality by Experiment of Cooking

    Institute of Scientific and Technical Information of China (English)

    Xiao Anhong; Pan Chongdao; Xiao Deyan; Hou Hong

    2000-01-01

    An experiment of flour quality was carried out by means of cooking. It was proven that the flour quality could be evaluated directly, accurately and raliablely by cooking experiment, which should be able to guide reasonble processing and utilizing flour.

  20. Effects of Lower and Higher Quality Brand Versions on Brand Evaluation: an Opponent-Process Model Plus Differential Brand-Version Weighting

    National Research Council Canada - National Science Library

    Timothy Heath; Devon DelVecchio; Michael McCarthy; Subimal Chatterjee

    2009-01-01

    ...) or lower-quality versions (e.g., Ruby Tuesday's Corner Diner). A brand-quality asymmetry emerges on measures ranging from brand choice to brand attitude to perceptions of brand expertise, innovativeness, and prestige...

  1. Quantitative image quality evaluation for cardiac CT reconstructions

    Science.gov (United States)

    Tseng, Hsin-Wu; Fan, Jiahua; Kupinski, Matthew A.; Balhorn, William; Okerlund, Darin R.

    2016-03-01

    Maintaining image quality in the presence of motion is always desirable and challenging in clinical Cardiac CT imaging. Different image-reconstruction algorithms are available on current commercial CT systems that attempt to achieve this goal. It is widely accepted that image-quality assessment should be task-based and involve specific tasks, observers, and associated figures of merits. In this work, we developed an observer model that performed the task of estimating the percentage of plaque in a vessel from CT images. We compared task performance of Cardiac CT image data reconstructed using a conventional FBP reconstruction algorithm and the SnapShot Freeze (SSF) algorithm, each at default and optimal reconstruction cardiac phases. The purpose of this work is to design an approach for quantitative image-quality evaluation of temporal resolution for Cardiac CT systems. To simulate heart motion, a moving coronary type phantom synchronized with an ECG signal was used. Three different percentage plaques embedded in a 3 mm vessel phantom were imaged multiple times under motion free, 60 bpm, and 80 bpm heart rates. Static (motion free) images of this phantom were taken as reference images for image template generation. Independent ROIs from the 60 bpm and 80 bpm images were generated by vessel tracking. The observer performed estimation tasks using these ROIs. Ensemble mean square error (EMSE) was used as the figure of merit. Results suggest that the quality of SSF images is superior to the quality of FBP images in higher heart-rate scans.

  2. Optimized production, quality control, biological evaluation and PET/CT imaging of {sup 68}Ga-PSMA-617 in breast adenocarcinoma model

    Energy Technology Data Exchange (ETDEWEB)

    Sharifi, Mehdi; Yousefnia, Hassan; Bahrami-Samani, Ali; Zolghadri, Samaneh; Alirezapour, Behrouz [Nuclear Science and Technology Research Institute (NSTRI), Tehran (Iran, Islamic Republic of); Jalilian, Amir Reza; Geramifa, Parham; Beiki, Davood [Tehran Univ. of Medical Sciences (Iran, Islamic Republic of). Research Center for Nuclear Medicine; Maus, Stephan [Univ. Medical Centre Mainz (Germany). Clinic of Nuclear Medicine

    2017-08-01

    Optimized production, quality control and preclinical evaluation of {sup 68}Ga-PSMA-617 as a PET radiotracer for PSMA-positive malignancies as well as successful application in imaging of breast adenocarcinomas are reported. {sup 68}Ga-PSMA-617 radiolabeling and QC optimization, stability, log P, biodistribution in breast adenocarcinomas-bearing mice (direct and blockade studies) and also PET/CT imaging was performed. {sup 68}Ga-PSMA-617 complex was prepared in high radiochemical purity (>96%, ITLC, HPLC) and specific activity of 300-310 GBq/mM at 95 C using 2-4 micrograms of the peptide in 10 min followed by solid phase purification. The tracer was stable in serum and final formulation for at least 120 min. The log P was -1.98. Western blot test on the tumor cell homogenates demonstrated distinct existence of the PSMA on the surface. The biodistribution of the tracer demonstrated specific kidney and tumor significant uptake using blocking study. Significant tumor:blood and tumor:muscle ratio uptake observed at 30 min post-injection (2.69 and 19.1, respectively). A reduction of 40-80% off tumor uptake in the study time period observed using blocking test. {sup 68}Ga-PSMA-617 can be proposing a possible tracer for PET imaging of breast adenocarcinomas and other breast malignancies.

  3. Course Evaluation Systems for Open-ended Quality Enhancement

    DEFF Research Database (Denmark)

    Piihl, Jesper; Rasmussen, Jens Smed

    2013-01-01

    Quality in higher education is widely controlled through surveys asking students to evaluate teaching. However, control of quality does not necessarily lead to enhancement of quality. Drawing on accounting research and a case study, a measurement-based and open-ended quality control system....... The chapter suggests that open-ended measurement systems enabling stakeholders to take responsibility for quality enhancement is not so much a matter of technical design as a matter of an enabling style of use....

  4. Course Evaluation Systems for Open-ended Quality Enhancement

    DEFF Research Database (Denmark)

    Piihl, Jesper; Rasmussen, Jens Smed

    2013-01-01

    Quality in higher education is widely controlled through surveys asking students to evaluate teaching. However, control of quality does not necessarily lead to enhancement of quality. Drawing on accounting research and a case study, a measurement-based and open-ended quality control system....... The chapter suggests that open-ended measurement systems enabling stakeholders to take responsibility for quality enhancement is not so much a matter of technical design as a matter of an enabling style of use....

  5. Fuzzy Synthetic Evaluation for Quality of Clothing Industry's Salesman

    Institute of Scientific and Technical Information of China (English)

    WANG Jian-ping; FANG Fei

    2002-01-01

    It is essential for the human resource management to establish a scientific and efficient evaluation system for the clothing industry. This paper discusses the evaluation system for the quality of clothing industry's salesman, using fuzzy set theory from the following five aspects: basic quality,work attitude, knowledge level,work ability and work achievement. A just and useful way for the human resource manager to evaluate employees' quality is elaborated.

  6. A Tentative Study on the Evaluation of Community Health Service Quality*

    Science.gov (United States)

    Ma, Zhi-qiang; Zhu, Yong-yue

    Community health service is the key point of health reform in China. Based on pertinent studies, this paper constructed an indicator system for the community health service quality evaluation from such five perspectives as visible image, reliability, responsiveness, assurance and sympathy, according to service quality evaluation scale designed by Parasuraman, Zeithaml and Berry. A multilevel fuzzy synthetical evaluation model was constructed to evaluate community health service by fuzzy mathematics theory. The applicability and maneuverability of the evaluation indicator system and evaluation model were verified by empirical analysis.

  7. Tests for evaluating the physiological quality of pitaya seeds

    National Research Council Canada - National Science Library

    Thiago Alberto Ortiz; Aline Moritz; Lúcia Sadayo Assari Takahashi; Mariana Ragassi Urbano

    2015-01-01

    .... Thus, this study aimed to develop methodologies for conducting tests of germination, accelerated aging, and electrical conductivity for the evaluation of the physiological quality of pitaya seeds...

  8. Evaluation Model of System Survivability

    Institute of Scientific and Technical Information of China (English)

    LIU Yuling; PAN Shiying; TIAN Junfeng

    2006-01-01

    This paper puts forward a survivability evaluation model, SQEM(Survivability Quantitative Evaluation Model), based on lucubrating the main method existed. Then it defines the measurement factors and parses the survivability mathematically, introduces state change probability and the idea of setting the weights of survivability factors dynamically into the evaluating process of SQEM, which improved the accuracy of evaluation. An example is presented to illustrate the way SQEM works, which demonstrated the validity and feasibility of the method.

  9. SOIL QUALITY ASSESSMENT USING FUZZY MODELING

    Science.gov (United States)

    Maintaining soil productivity is essential if agriculture production systems are to be sustainable, thus soil quality is an essential issue. However, there is a paucity of tools for measurement for the purpose of understanding changes in soil quality. Here the possibility of using fuzzy modeling t...

  10. Quality model for semantic IS standards

    NARCIS (Netherlands)

    Folmer, E.J.A.

    2011-01-01

    Semantic IS (Information Systems) standards are essential for achieving interoperability between organizations. However a recent survey suggests that not the full benefits of standards are achieved, due to the quality issues. This paper presents a quality model for semantic IS standards, that should

  11. WATER QUALITY MODELING OF SUZHOU CREEK

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    Water-quality models are important tools for improving river environment. In this paper, the project "Water Quality Modeling of the Suzhou Creek" was briefly described, including the choice and the principle of the model, the model study and methods, the calibration and verification of the stream model. A set of parameters about water environmental characteristic of the Suzhou Creek were put forward in the period of the third water dispatch experiment in 1999. It is necessary to point out that these parameters will change with the rehabilitation and construction of the Suzhou Creek.

  12. Academic research groups: evaluation of their quality and quality of their evaluation

    Science.gov (United States)

    Berche, Bertrand; Holovatch, Yuri; Kenna, Ralph; Mryglod, Olesya

    2016-02-01

    In recent years, evaluation of the quality of academic research has become an increasingly important and influential business. It determines, often to a large extent, the amount of research funding flowing into universities and similar institutes from governmental agencies and it impacts upon academic careers. Policy makers are becoming increasingly reliant upon, and influenced by, the outcomes of such evaluations. In response, university managers are increasingly attracted to simple metrics as guides to the dynamics of the positions of their various institutions in league tables. However, these league tables are invariably drawn up by inexpert bodies such as newspapers and magazines, using arbitrary measures and criteria. Terms such as “critical mass” and “h-index” are bandied about without understanding of what they actually mean. Rather than accepting the rise and fall of universities, departments and individuals on a turbulent sea of arbitrary measures, we suggest it is incumbent upon the scientific community itself to clarify their nature. Here we report on recent attempts to do that by properly defining critical mass and showing how group size influences research quality. We also examine currently predominant metrics and show that these fail as reliable indicators of group research quality.

  13. Quality evaluation of simvastatin compounded capsules

    Directory of Open Access Journals (Sweden)

    Flávia Dias Marques-Marinho

    2011-09-01

    Full Text Available Simvastatin is commercially available as tablets and compounded capsules in Brazil. Very few reports regarding these capsules' quality, and consequently their efficacy, are available. The pharmaceutical quality of 30 batches of 20 mg simvastatin capsules from the market was evaluated by weight determination, content uniformity, disintegration (Brazilian Pharmacopeia, assay and dissolution test (USP32 tablet monograph. A HPLC method was developed for assay, content uniformity and dissolution test, and specifications were also established. Out of the 30 batches evaluated, 29 showed capsule disintegration within 45 min and individual weight variation was within ±10% or ±7.5% relative to average weight, for 300 mg, respectively. Only 27 batches met dissolution test criteria with values >80% of the labeled amount in 45 min; 21 batches showed simvastatin content between 90.0-110.0% of the labeled amount and 19 batches had at least 9 out of 10 capsules with content uniformity values between 85.0-115.0% of the labeled amount with RSDNo Brasil, a sinvastatina está comercialmente disponível na forma de comprimidos e cápsulas manipuladas. Poucos relatos estão disponíveis sobre a qualidade e, consequentemente, a eficácia dessas cápsulas. A qualidade de 30 lotes de sinvastatina 20 mg cápsulas do mercado foi avaliada através da determinação de peso, uniformidade de conteúdo, desintegração (Farmacopéia Brasileira, doseamento e teste de dissolução (monografia comprimidos USP32. Método por CLAE foi desenvolvido para o doseamento, uniformidade de conteúdo e teste de dissolução; além disso, especificações foram estabelecidas. Dos 30 lotes avaliados, 29 apresentaram desintegração da cápsula até 45 min e a variação do peso individual foi ± 10% ou ± 7,5% em relação ao peso médio, se 300 mg, respectivamente. Apenas 27 lotes preencheram os critérios do teste de dissolução com valores > 80% da quantidade rotulada, em 45 min, 21

  14. Photochemical model evaluation of the ground-level ozone impacts on ambient air quality and vegetation health in the Alberta oil sands region: Using present and future emission scenarios

    Science.gov (United States)

    Vijayaraghavan, Krish; Cho, Sunny; Morris, Ralph; Spink, David; Jung, Jaegun; Pauls, Ron; Duffett, Katherine

    2016-09-01

    One of the potential environmental issues associated with oil sands development is increased ozone formation resulting from NOX and volatile organic compound emissions from bitumen extraction, processing and upgrading. To manage this issue in the Athabasca Oil Sands Region (AOSR) in northeast Alberta, a regional multi-stakeholder group, the Cumulative Environmental Management Association (CEMA), developed an Ozone Management Framework that includes a modelling based assessment component. In this paper, we describe how the Community Multi-scale Air Quality (CMAQ) model was applied to assess potential ground-level ozone formation and impacts on ambient air quality and vegetation health for three different ozone precursor cases in the AOSR. Statistical analysis methods were applied, and the CMAQ performance results met the U.S. EPA model performance goal at all sites. The modelled 4th highest daily maximum 8-h average ozone concentrations in the base and two future year scenarios did not exceed the Canada-wide standard of 65 ppb or the newer Canadian Ambient Air Quality Standards of 63 ppb in 2015 and 62 ppb in 2020. Modelled maximum 1-h ozone concentrations in the study were well below the Alberta Ambient Air Quality Objective of 82 ppb in all three cases. Several ozone vegetation exposure metrics were also evaluated to investigate the potential impact of ground-level ozone on vegetation. The chronic 3-months SUM60 exposure metric is within the CEMA baseline range (0-2000 ppb-hr) everywhere in the AOSR. The AOT40 ozone exposure metric predicted by CMAQ did not exceed the United Nations Economic Commission for Europe (UN/ECE) threshold of concern of 3000 ppb-hr in any of the cases but is just below the threshold in high-end future emissions scenario. In all three emission scenarios, the CMAQ predicted W126 ozone exposure metric is within the CEMA baseline threshold of 4000 ppb-hr. This study outlines the use of photochemical modelling of the impact of an industry (oil

  15. Evaluating the Quality and Accuracy of TanDEM-X Digital Elevation Models at Archaeological Sites in the Cilician Plain, Turkey

    Directory of Open Access Journals (Sweden)

    Stefan Erasmi

    2014-10-01

    Full Text Available Satellite remote sensing provides a powerful instrument for mapping and monitoring traces of historical settlements and infrastructure, not only in distant areas and crisis regions. It helps archaeologists to embed their findings from field surveys into the broader context of the landscape. With the start of the TanDEM-X mission, spatially explicit 3D-information is available to researchers at an unprecedented resolution worldwide. We examined different experimental TanDEM-X digital elevation models (DEM that were processed from two different imaging modes (Stripmap/High Resolution Spotlight using the operational alternating bistatic acquisition mode. The quality and accuracy of the experimental DEM products was compared to other available DEM products and a high precision archaeological field survey. The results indicate the potential of TanDEM-X Stripmap (SM data for mapping surface elements at regional scale. For the alluvial plain of Cilicia, a suspected palaeochannel could be reconstructed. At the local scale, DEM products from TanDEM-X High Resolution Spotlight (HS mode were processed at 2 m spatial resolution using a merge of two monostatic/bistatic interferograms. The absolute and relative vertical accuracy of the outcome meet the specification of high resolution elevation data (HRE standards from the National System for Geospatial Intelligence (NSG at the HRE20 level.

  16. 信息熵赋权的大学生综合素质评价模型的EXCEL求解%The Information Entropy Empowerment of College Students Comprehensive Quality Evaluation Model of EXCEL to Solve

    Institute of Scientific and Technical Information of China (English)

    陈华喜; 许庆兵; 姚保峰

    2012-01-01

    How to scientifically evaluate the comprehensive quality of college students in colleges and uni-versities is the presence of a urgent problem to be solved. Based on comprehensive, feasibility, level and principle of using accelerating genetic algorithm based on the fuzzy analytic hierarchy process (ahp) after screening index construction of college students comprehensive quality evaluation index system, with the objective based on entropy weight method to weighting at all levels, and combining the fuzzy comprehen- sive evaluation method to establish a college students' comprehensive quality evaluation model, and finally gives out the model of solving method EXCEL.%如何科学地评价大学生的综合素质是摆在当前高等院校面前的一个亟待解决的问题.本文依据全面性、可行性、层次性等原则,对基于加速遗传算法的模糊层次分析法筛选指标后构建的大学生综合素质评价指标体系,用基于信息熵的客观赋权方法对各级指标赋权,进而结合模糊综合评判法建立了一个大学生综合素质评价模型,最后给出了该模型的EXCEL求解方法.

  17. Air Quality Dispersion Modeling - Alternative Models

    Science.gov (United States)

    Models, not listed in Appendix W, that can be used in regulatory applications with case-by-case justification to the Reviewing Authority as noted in Section 3.2, Use of Alternative Models, in Appendix W.

  18. Aspects on Image Quality in Radiologic Evaluation of the Urinary Tract

    OpenAIRE

    2012-01-01

    The focus of this document is on image quality as one of the factors fundamental for the diagnostic process. With the rising number of procedures and the trend towards more complicated examinations, urinary tract investigations was chosen in this work as a good clinical model for evaluation of the factors influencing image quality and of the ways of evaluating image quality. In paper I, a method is described for optimisation during the introduction of a new imaging system, with a focus on the...

  19. Measurement quality and uncertainty evaluation in civil engineering research

    Directory of Open Access Journals (Sweden)

    Silva Ribeiro A.

    2013-01-01

    Full Text Available Civil engineering is a branch of science that covers a broad range of areas where experimental procedures often plays an important role. The research in this field is usually supported by experimental structures able to test physical and mathematical models and to provide measurement results with acceptable accuracy. To assure measurement quality, a metrology probabilistic approach can provide valuable mathematical and computational tools especially suited to the study, evaluation and improvement of measurement processes in its different components (modeling, instrumentation performance, data processing, data validation and traceability, emphasizing measurement uncertainty evaluation as a tool to the analysis of results and to promote the quality and capacity associated with decision-making. This paper presents some of the research held by the metrology division of the Portuguese civil engineering research institutes, focused on the contribution of measurement uncertainty studies to a variety of frameworks, such as testing for metrological characterization and physical and mathematical modeling. Experimental data will be used to illustrate practical cases.

  20. EXTERNAL EVALUATION OF LEARNING AS A GUARANTEE OF QUALITY EDUCATION

    Directory of Open Access Journals (Sweden)

    José Mª Arribas Estebaranz

    2014-12-01

    Almost all countries and all reports use contemplated, in varying degrees, the always-complementary external evaluation by the teachers-as an essential guarantee of educational quality at different levels of detail curriculum evaluation.

  1. 基于灰关联综合评价模型的激光合金化层的质量评价%Quality evaluation of laser alloying layer on the basis of grey relation integrated evaluation model

    Institute of Scientific and Technical Information of China (English)

    游明琳; 李安书; 刘宇刚

    2011-01-01

    , the anti-abrasion of the alloying layer decreases slightly as the addition of nano-SiC increases. Finally, in connection with the results mentioned above, the study comprehensively evaluates the quality of the alloying layer with the application of gray relation integrated evaluation model, and the evaluation vector indicates that overall performance of laser alloying layer with 20% SiC addition is the best.

  2. Groundwater quality evaluation of matter-element model based on the combined weights%基于组合权物元分析模型的地下水水质评价

    Institute of Scientific and Technical Information of China (English)

    刘志斌; 杨晓伟

    2012-01-01

    The present paper is inclined to introduce a matter-element model for the groundwater quality evaluation based on the combined weights. Taking the disadvantages of using single weights for assessment of groundwater quality in the previous studies, we have developed the variable pattern recognition model based on the integration of the subjective and objective weights. Tn proceeding with our research, we have chosen the calculation formula of the weight risk degree and the more suitable combination weights, which can help to increase the reliability of the combination weight. And, then, we have established matter-element model based on the matter-element analysis and the combined weights for evaluating the groundwater quality because the model can not only take into full account the drawbacks of the single weights but also helps to reduce the error of inconsistency of combination of the subjective and objective weights. With the above said advantages, the model has already been applied successfully to evaluating twelve wells for the groundwater quality around the open-pit coal mine of Xinqiu in Fuxin. According to the monitoring indexes of the groundwater pollution area, we have chosen seven indexes as our evaluation factors. The results of our evaluation show that all the water samples taken from the wells-from the first one to the fifth one were rated as level D > which come all to the quality standard of potable water. And, then, the samples chosen from No. 6 to No. 12 were polluted in different degrees, belonging to level IV and V respectively, which are not fit for drinking. The above research has thus helped us to conclude that the above said method helps to join the grey associated analysis and fuzzy comprehensive appraisal together successfully though tiny appraisal result differences are likely to be caused. On the whole, the assessment results are in conformity with the objective facts. Being highly convenient,objective as well as rationalistic, the model

  3. Preliminary study on the contents for the evaluation of pharmacy service quality based on SERVQUAL model%基于SERVQUAL模型的我国药店服务质量评价内容初步探讨

    Institute of Scientific and Technical Information of China (English)

    赵建芹; 吴幼萍; 陈永法

    2013-01-01

      在文献研究的基础上,初步探讨SERVQUAL模型提出的5个服务质量评价维度在我国药店服务的具体内涵,为药店经营管理者如何提高药店服务质量提供参考,并且为药店服务质量评价的近一步研究提供借鉴。%ABSTRACT Based on the research of literatures, the specific meaning of the five service quality evaluation dimensions of Chinese pharmacy service in the SERVQUAL model was analyzed so as to provide a reference for pharmacy managers to improve their service quality and for further study.

  4. Tools for Model Evaluation

    DEFF Research Database (Denmark)

    Olesen, H. R.

    1998-01-01

    Proceedings of the Twenty-Second NATO/CCMS International Technical Meeting on Air Pollution Modeling and Its Application, held June 6-10, 1997, in Clermont-Ferrand, France.......Proceedings of the Twenty-Second NATO/CCMS International Technical Meeting on Air Pollution Modeling and Its Application, held June 6-10, 1997, in Clermont-Ferrand, France....

  5. Image processing system performance prediction and product quality evaluation

    Science.gov (United States)

    Stein, E. K.; Hammill, H. B. (Principal Investigator)

    1976-01-01

    The author has identified the following significant results. A new technique for image processing system performance prediction and product quality evaluation was developed. It was entirely objective, quantitative, and general, and should prove useful in system design and quality control. The technique and its application to determination of quality control procedures for the Earth Resources Technology Satellite NASA Data Processing Facility are described.

  6. Ozone air quality simulations with WRF-Chem (v3.5.1) over Europe: model evaluation and chemical mechanism comparison

    Science.gov (United States)

    Mar, Kathleen A.; Ojha, Narendra; Pozzer, Andrea; Butler, Tim M.

    2016-10-01

    We present an evaluation of the online regional model WRF-Chem over Europe with a focus on ground-level ozone (O3) and nitrogen oxides (NOx). The model performance is evaluated for two chemical mechanisms, MOZART-4 and RADM2, for year-long simulations. Model-predicted surface meteorological variables (e.g., temperature, wind speed and direction) compared well overall with surface-based observations, consistent with other WRF studies. WRF-Chem simulations employing MOZART-4 as well as RADM2 chemistry were found to reproduce the observed spatial variability in surface ozone over Europe. However, the absolute O3 concentrations predicted by the two chemical mechanisms were found to be quite different, with MOZART-4 predicting O3 concentrations up to 20 µg m-3 greater than RADM2 in summer. Compared to observations, MOZART-4 chemistry overpredicted O3 concentrations for most of Europe in the summer and fall, with a summertime domain-wide mean bias of +10 µg m-3 against observations from the AirBase network. In contrast, RADM2 chemistry generally led to an underestimation of O3 over the European domain in all seasons. We found that the use of the MOZART-4 mechanism, evaluated here for the first time for a European domain, led to lower absolute biases than RADM2 when compared to ground-based observations. The two mechanisms show relatively similar behavior for NOx, with both MOZART-4 and RADM2 resulting in a slight underestimation of NOx compared to surface observations. Further investigation of the differences between the two mechanisms revealed that the net midday photochemical production rate of O3 in summer is higher for MOZART-4 than for RADM2 for most of the domain. The largest differences in O3 production can be seen over Germany, where net O3 production in MOZART-4 is seen to be higher than in RADM2 by 1.8 ppb h-1 (3.6 µg m-3 h-1) or more. We also show that while the two mechanisms exhibit similar NOx sensitivity, RADM2 is approximately twice as

  7. Processing and Quality Evaluation of Additive Manufacturing Monolayer Specimens

    Directory of Open Access Journals (Sweden)

    Christiane Wendt

    2016-01-01

    Full Text Available Although its importance has increased significantly, Additive Manufacturing is not yet a fully accepted industrial manufacturing process for load-carrying parts. The future success of the process group depends on its standardization. This work proposes a methodology for the design, manufacturing, and quality evaluation of specimens manufactured by Fused Layer Modeling that are composed of only one layer (so-called monolayers. The processing methodology and properties of monolayers have not been studied systematically yet. A first systematic design of monolayers for mechanical testing is presented. Rectangular and circular monolayers adapted to the loads of tensile and compression testing are manufactured using different trajectory strategies. Frequently occurring macro- and microgeometrical defects are evaluated and categorized in order to optimize the part quality. This work also studies the effect of some manufacturing parameters such as the gap between print head and machine bed, trajectory strategy, bed leveling, and temperatures on part quality. The most suitable specimens are tested mechanically in tensile or compression tests. In the case of study, tensile strength values are only 8.6% lower than the values for reference tests on the unextruded filament. However, the properties deviate more strongly for compression tests which may be due to the selected specimen geometry.

  8. Mexico City Air Quality Research Initiative; Volume 5, Strategic evaluation

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    Members of the Task HI (Strategic Evaluation) team were responsible for the development of a methodology to evaluate policies designed to alleviate air pollution in Mexico City. This methodology utilizes information from various reports that examined ways to reduce pollutant emissions, results from models that calculate the improvement in air quality due to a reduction in pollutant emissions, and the opinions of experts as to the requirements and trade-offs that are involved in developing a program to address the air pollution problem in Mexico City. The methodology combines these data to produce comparisons between different approaches to improving Mexico City`s air quality. These comparisons take into account not only objective factors such as the air quality improvement or cost of the different approaches, but also subjective factors such as public acceptance or political attractiveness of the different approaches. The end result of the process is a ranking of the different approaches and, more importantly, the process provides insights into the implications of implementing a particular approach or policy.

  9. Quality Evaluation of Remelted A356 Scraps

    National Research Council Canada - National Science Library

    C. Yuksel; O. Tamer; E. Erzi; U. Aybarc; E. Cubuklusu; O. Topcuoglu; M. Cigdem; D. Dispinar

    2016-01-01

    .... Since recycling of these scrap is quite important due to the advantages like energy saving and cost reduction in the final product, in this work, the recycling efficiency and casting quality were investigated...

  10. Surface Flux Modeling for Air Quality Applications

    Directory of Open Access Journals (Sweden)

    Limei Ran

    2011-08-01

    Full Text Available For many gasses and aerosols, dry deposition is an important sink of atmospheric mass. Dry deposition fluxes are also important sources of pollutants to terrestrial and aquatic ecosystems. The surface fluxes of some gases, such as ammonia, mercury, and certain volatile organic compounds, can be upward into the air as well as downward to the surface and therefore should be modeled as bi-directional fluxes. Model parameterizations of dry deposition in air quality models have been represented by simple electrical resistance analogs for almost 30 years. Uncertainties in surface flux modeling in global to mesoscale models are being slowly reduced as more field measurements provide constraints on parameterizations. However, at the same time, more chemical species are being added to surface flux models as air quality models are expanded to include more complex chemistry and are being applied to a wider array of environmental issues. Since surface flux measurements of many of these chemicals are still lacking, resistances are usually parameterized using simple scaling by water or lipid solubility and reactivity. Advances in recent years have included bi-directional flux algorithms that require a shift from pre-computation of deposition velocities to fully integrated surface flux calculations within air quality models. Improved modeling of the stomatal component of chemical surface fluxes has resulted from improved evapotranspiration modeling in land surface models and closer integration between meteorology and air quality models. Satellite-derived land use characterization and vegetation products and indices are improving model representation of spatial and temporal variations in surface flux processes. This review describes the current state of chemical dry deposition modeling, recent progress in bi-directional flux modeling, synergistic model development research with field measurements, and coupling with meteorological land surface models.

  11. 加权 SERVQUAL 模型的航班延误服务补救质量评价研究%A Research on Service Recovery Quality Evaluation in Flight Delay Based on Weighted SERVQUAL Model

    Institute of Scientific and Technical Information of China (English)

    孔祥芬; 王晓贝

    2014-01-01

    In flight delay and service recovery , travelers′main concern is how to get the best compensa-tion.Constructive advice is offered for airlines to improve service quality .A questionnaire survey is con-ducted among passengers using the SERVQUAL evaluation model for flight delays ′service recovery issues and a remedial service quality evaluation of flight delays is done .The results show that the tangibles are the most important part of the five attributes .And the overall results indicate that travelers are not satisfied with their services.Finally, according to these results, conclusions are reached with recommendations for airlines to improve service quality after flight delays .%介绍航班延误和服务质量评价,体现航班延误服务补救质量评价的重要性。通过对旅客的问卷调查,将加权SERVQUAL评价模型应用于航班延误服务补救问题,对航班延误进行服务补救质量评价,最后为航空公司更好地提高航班延误后的服务质量提出了较详细的建议。

  12. Academic research groups: evaluation of their quality and quality of their evaluation

    CERN Document Server

    Berche, Bertrand; Kenna, Ralph; Mryglod, Olesya

    2015-01-01

    In recent years, evaluation of the quality of academic research has become an increasingly important and influential business. It determines, often to a large extent, the amount of research funding flowing into universities and similar institutes from governmental agencies and it impacts upon academic careers. Policy makers are becoming increasingly reliant upon, and influenced by, the outcomes of such evaluations. In response, university managers are increasingly attracted to simple indicators as guides to the dynamics of the positions of their various institutions in league tables. However, these league tables are frequently drawn up by inexpert bodies such as newspapers and magazines, using rather arbitrary measures and criteria. Terms such as "critical mass' and "metrics" are often bandied about without proper understanding of what they actually mean. Rather than accepting the rise and fall of universities, departments and individuals on a turbulent sea of arbitrary measures, we suggest it is incumbent up...

  13. [Quality of manuscript evaluation in Gaceta Sanitaria].

    Science.gov (United States)

    García, A M; Plasència, A; Fernández, E

    2002-01-01

    To describe strengths and weaknesses of peer reviews of manuscripts received in Gaceta Sanitaria in order to guide reviewers selection, to improve quality of peer reviews and to establish an internal system to be incorporated to the editorial process of handling manuscripts. 100 peer reviews of 55 manuscripts received during 2000 and 2001 were included. A questionnaire containing closed questions assessing specific and general components of reviews' quality was applied (answers Yes/No or on a 5-points scale). Descriptive and correlation analyses were performed for the different items in the questionnaire. An Index of Quality was obtained by adding the ratings on the items in the questionnaire measuring specific quality components. Peer reviews were rated high regarding completeness of the forms for reviewers (84%), constructiveness of the comments (reviews over 3: 63%), identification of the strengths and weaknesses of the method (reviews over 3: 59%) and substantiation of the reviewer comments (reviews over 3: 58%). Assessment of the manuscript's relevance (reviews over 3: 40%) or originality (reviews over 3: 35%) were less frequent. Quality of peer reviews in Gaceta Sanitaria is good. Some weaknesses in the reviews have been pointed out. It is possible to establish a systematic process for assessing peer reviewers using simple indicators such as general utility of the review for the editorial decision and general quality of the review.

  14. Quality Evaluation of Remelted A356 Scraps

    Directory of Open Access Journals (Sweden)

    Yuksel C.

    2016-09-01

    Full Text Available A356 is one of the widely used aluminium casting alloy that has been used in both sand and die casting processes. Large amounts of scrap metal can be generated from the runner systems and feeders. In addition, chips are generated in the machined parts. The surface area with regard to weight of chips is so high that it makes these scraps difficult to melt. Although there are several techniques evolved to remedy this problem, yet the problem lies in the quality of the recycled raw material. Since recycling of these scrap is quite important due to the advantages like energy saving and cost reduction in the final product, in this work, the recycling efficiency and casting quality were investigated. Three types of charges were prepared for casting: %100 primary ingot, %100 scrap aluminium and fifty-fifty scrap aluminium and primary ingot mixture were used. Melt quality was determined by calculating bifilm index by using reduced pressure test. Tensile test samples were produced by casting both from sand and die moulds. Relationship between bifilm index and tensile strength were determined as an indication of correlation of melt quality. It was found that untreated chips decrease the casting quality significantly. Therefore, prior to charging the chips into the furnace for melting, a series of cleaning processes has to be used in order to achieve good quality products.

  15. An air quality model for Central Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Jazcilevich, D. Aron; Garcia, R. Agustin; Suarez, Gerardo Ruiz; Magana, R. Victor; Perez, L. Jose Luis [Universidad Nacional Autonoma de Mexico, Centro de Ciencias de la Atmosfera, Mexico City (Mexico); Fuentes-Gea, Vicente [Universidad Nacional Autonoma de Mexico, Div. de Estudios del Posgrado, Mexico City (Mexico)

    1999-07-01

    A computational air quality model for Central Mexico that includes the Basin of the Valley of Mexico, the Valleys of Toluca, Puebla and Cuernavaca already in experimental operation, is presented. The meteorology of the region is obtained combining two non-hydrostatic models: a model designed for synoptic scales called MM5 provides initial and boundary data to a model specially designed for urban environments and scales called MEMO. The transport model used numerical techniques developed by the authors that eliminate numerical diffusion and dispersion. For the photochemical model several ODE's integrators were tested. The emissions model developed uses the latest inventory data gathered in the region. (Author)

  16. Teacher evaluation system, institutions of technology higher education: quality guidelines

    Directory of Open Access Journals (Sweden)

    Laura Belkis Parada Romero

    2016-01-01

    Full Text Available Due to the globalization of education, it has become prevalent to strengthen the quality systems to ensure that educational actors in higher education institutions are the best. In this context teachers are given a main role since they are cornerstones in educational processes. Currently, teacher quality is assessed through an assessment or evaluation system. Almost every university evaluates its teachers, but there is no legal regulation on how to do it, in most institutions there is a professional in charge of designing and applying assessment instruments according to the authors he/she prefers. In most universities, on the one hand, it is used a traditional questionnaire aiming to collect data about dimensions associated with teaching, on the other hand, there is another option in which assessment models include self-evaluation, as in some cases in Chile. That’s why one of the concerns of this research is to propose guidelines for a more qualitative and formative assessment not exclusively following political parameters –based on administrative decisions–, but following emerging proposals with a deeper analysis. Nowadays the main actors in teacher evaluation are teachers, students and administrative staff, every six months these actors are evaluated by using an assessment tool that they usually do not know. The research investigates the perception actors in teacher evaluation have regarding its objectives, methods and stages, so they put forward ideas on how to restructure the current institutional assessment and propose improvements aiming at both the quantitative aspect and the qualitative analysis of performances and skills.

  17. TOTAL QUALITY CUSTOMER SATISFACTION MODEL

    OpenAIRE

    Jesús Cruz Álvarez; Jesús Fabián López; Carlos Monge Perry

    2014-01-01

    In today’s business environment, all organizations are required to focus on their customers in order to fully understand their needs. There is a need to drive and engage strategic actions in order to close any potentials gaps between customer´s expectations and manufacture´s deliverables. Current customer satisfaction theory appears to be excluded from a holistic model that broadly covers the extent of customer satisfaction concept.This article empathizes the need of an integrated customer sa...

  18. Evaluating service quality in the Durban freight transportation industry

    OpenAIRE

    Jeevarathnam P. Govender; Koovendhran Naidu

    2011-01-01

    This paper evaluates service quality in the Durban freight transportation industry, in which a high degree of competition exists. Previous measurements of service quality in the industry have been casual gauges, rather than a formalised process. This paper makes a contribution by examining the level of service quality, specifically from a tangibles, reliability and responsiveness perspective, thereby identifying service quality gaps which need to be closed, with a view to raising service qual...

  19. Modeling of Aroma Quality Evaluation of Flue-cured Tobacco Based on Principal Component Analysis%基于主成分分析法的烤烟香气品质评价模型构建

    Institute of Scientific and Technical Information of China (English)

    赵华武; 贺帆; 李祖良; 张欣华; 刘建; 赵高坤; 黄维; 宫长荣

    2012-01-01

    采用顶空固相微萃取与气相色谱质谱联用法分别测定20种烤烟样品中的69种香气成分,并以69种香气成分的含量为变量,利用主成分分析法建立烤烟香气品质评价模型,并应用该模型对20种样品的烤烟香气品质进行评价.结果表明,S10烤烟的香气品质最好,其后依次为S9、s4、S20、S16、S17、S18、S19、S1、S15、S2、S5、S3、S14、S6、S8、S12、S7、S13、S1l;通过感官评价法进一步对该模型评价结果进行检验,模型评价结果和感官质量评价结果具有很好的一致性.提出的烤烟香气品质评价模型不受主观因素的影响,能够做到标准化评价,且评判结果具有一定的客观性和可行性,能够真实区分烤烟香气品质的优劣.%This paper aimed to find a more objective method to evaluate flue-cured tobacco aroma quality than the traditional sensory evaluation method. The total of 69 aroma compounds in 20 different kinds of flue-cured tobacco was identified and determined by the Headspace Solid Phase Microextrac-tion-Gas Chromatography-Mass Spectrometry. Then a model was established based on principal component analysis method for assessing and ranking the aroma quality of flue-cured tobacco with the 69 kinds of aroma components as variables. S10 was selected from 20 flue-cured tobacco samples for having best aroma by the model, followed by S9, S4, S20, S16, S17, S18, S19, S1, S15, S2, S5, S3, S14, S6, S8, S12, S7, S13 and Sll. The evaluation result of this model was tested further by sensory evaluation method, and the test result indicated that the model evaluation result was consistent with conventional sensory evaluation. The flue-cured tobacco aroma quality evaluation model proposed in this paper was not affected by subjective factors, and its standardization evaluation result had the objectivity and feasibility to some extent. Furthermore, it can definitely distinguish the quality of flue-cured tobacco aroma.

  20. Quality in Qualitative Evaluation: Issues and Possible Answers

    Science.gov (United States)

    Anastas, Jeane W.

    2004-01-01

    Qualitative evaluation studies can differ markedly from quantitative ones in both purpose and method and therefore must be understood and evaluated on their own terms. This article defines qualitative evaluation research and describes key parameters of quality to be considered when conducting and evaluating these studies in terms that take their…

  1. Using short-wave infrared imaging for fruit quality evaluation

    Science.gov (United States)

    Zhang, Dong; Lee, Dah-Jye; Desai, Alok

    2013-12-01

    Quality evaluation of agricultural and food products is important for processing, inventory control, and marketing. Fruit size and surface quality are two important quality factors for high-quality fruit such as Medjool dates. Fruit size is usually measured by length that can be done easily by simple image processing techniques. Surface quality evaluation on the other hand requires more complicated design, both in image acquisition and image processing. Skin delamination is considered a major factor that affects fruit quality and its value. This paper presents an efficient histogram analysis and image processing technique that is designed specifically for real-time surface quality evaluation of Medjool dates. This approach, based on short-wave infrared imaging, provides excellent image contrast between the fruit surface and delaminated skin, which allows significant simplification of image processing algorithm and reduction of computational power requirements. The proposed quality grading method requires very simple training procedure to obtain a gray scale image histogram for each quality level. Using histogram comparison, each date is assigned to one of the four quality levels and an optimal threshold is calculated for segmenting skin delamination areas from the fruit surface. The percentage of the fruit surface that has skin delamination can then be calculated for quality evaluation. This method has been implemented and used for commercial production and proven to be efficient and accurate.

  2. Measures of Quality in Business Process Modelling

    Directory of Open Access Journals (Sweden)

    Radek Hronza

    2015-06-01

    Full Text Available Business process modelling and analysing is undoubtedly one of the most important parts of Applied (Business Informatics. Quality of business process models (diagrams is crucial for any purpose in this area. The goal of a process analyst’s work is to create generally understandable, explicit and error free models. If a process is properly described, created models can be used as an input into deep analysis and optimization. It can be assumed that properly designed business process models (similarly as in the case of correctly written algorithms contain characteristics that can be mathematically described. Besides it will be possible to create a tool that will help process analysts to design proper models. As part of this review will be conducted systematic literature review in order to find and analyse business process model’s design and business process model’s quality measures. It was found that mentioned area had already been the subject of research investigation in the past. Thirty-three suitable scietific publications and twenty-two quality measures were found. Analysed scientific publications and existing quality measures do not reflect all important attributes of business process model’s clarity, simplicity and completeness. Therefore it would be appropriate to add new measures of quality.

  3. Developing Cyberinfrastructure Tools and Services for Metadata Quality Evaluation

    Science.gov (United States)

    Mecum, B.; Gordon, S.; Habermann, T.; Jones, M. B.; Leinfelder, B.; Powers, L. A.; Slaughter, P.

    2016-12-01

    Metadata and data quality are at the core of reusable and reproducible science. While great progress has been made over the years, much of the metadata collected only addresses data discovery, covering concepts such as titles and keywords. Improving metadata beyond the discoverability plateau means documenting detailed concepts within the data such as sampling protocols, instrumentation used, and variables measured. Given that metadata commonly do not describe their data at this level, how might we improve the state of things? Giving scientists and data managers easy to use tools to evaluate metadata quality that utilize community-driven recommendations is the key to producing high-quality metadata. To achieve this goal, we created a set of cyberinfrastructure tools and services that integrate with existing metadata and data curation workflows which can be used to improve metadata and data quality across the sciences. These tools work across metadata dialects (e.g., ISO19115, FGDC, EML, etc.) and can be used to assess aspects of quality beyond what is internal to the metadata such as the congruence between the metadata and the data it describes. The system makes use of a user-friendly mechanism for expressing a suite of checks as code in popular data science programming languages such as Python and R. This reduces the burden on scientists and data managers to learn yet another language. We demonstrated these services and tools in three ways. First, we evaluated a large corpus of datasets in the DataONE federation of data repositories against a metadata recommendation modeled after existing recommendations such as the LTER best practices and the Attribute Convention for Dataset Discovery (ACDD). Second, we showed how this service can be used to display metadata and data quality information to data producers during the data submission and metadata creation process, and to data consumers through data catalog search and access tools. Third, we showed how the centrally

  4. Modelling of Buckingham Canal water quality.

    Science.gov (United States)

    Abbasi, S A; Khan, F I; Sentilvelan, K; Shabudeen, A

    2002-10-01

    The paper presents a case study of the modelling of the water quality of a canal situated in a petrochemical industrial complex, which receives wastewaters from Madras Refineries Limited (MRL), and Madras Fertilizers Limited (MFL). The canal well known Buckingham Canal which passes through Chennai (Madras), India has been modelled using the software QUAL2E-UNCAS. After testing and validation of the model, simulations have been carried out. The exercise enables forecasting the impacts of different seasons, base flows, and waste water inputs on the water quality of the Buckingham Canal. It also enables development of water management strategies.

  5. Teaching-Family Model: Insuring Quality Practice

    Science.gov (United States)

    McElgunn, Peggy

    2012-01-01

    The Teaching-Family Model was one of the earliest approaches to be supported by an extensive research base. As it has evolved over four decades, it retains the focus on teaching and learning but incorporates a strength- and relationship-based orientation. The model is also unique in gathering ongoing practice-based evidence to insure quality.

  6. New challenges in integrated water quality modelling

    NARCIS (Netherlands)

    Rode, M.; Arhonditsis, G.; Balin, D.; Kebede, T.; Krysanova, V.; Griensven, A.; Zee, van der S.E.A.T.M.

    2010-01-01

    There is an increasing pressure for development of integrated water quality models that effectively couple catchment and in-stream biogeochemical processes. This need stems from increasing legislative requirements and emerging demands related to contemporary climate and land use changes. Modelling w

  7. Methodology for Evaluation Quality in Higher Education

    Directory of Open Access Journals (Sweden)

    Mihaela Lavinia Ciobănică

    2013-07-01

    Full Text Available The quality represents the different characteristics of an entity that gives fitness to meet the needs expressed or implied. Quality management in higher education is a basic requirement of orientation towards performance and increase competitiveness of universities, considering that, as an institution of education and research, assumes the responsibility to form competent specialists, to answer the needs of the labor market, to develop the scientific fundamental and applicative research in accordance with national and international standards and to integrate into the university system of the European Union. The need to optimize the activity of the universities, the implementation of efficient management, quality assurance and education systems committed on roadmap has led to numerous researches in this field by adopting the theoretical framework of reference, organizational patterns of explanation of the functionality of universities and the definition of a system of performance assessment.

  8. Heuristic Model Of The Composite Quality Index Of Environmental Assessment

    Science.gov (United States)

    Khabarov, A. N.; Knyaginin, A. A.; Bondarenko, D. V.; Shepet, I. P.; Korolkova, L. N.

    2017-01-01

    The goal of the paper is to present the heuristic model of the composite environmental quality index based on the integrated application of the elements of utility theory, multidimensional scaling, expert evaluation and decision-making. The composite index is synthesized in linear-quadratic form, it provides higher adequacy of the results of the assessment preferences of experts and decision-makers.

  9. Evaluation of quality in social-work practice

    Directory of Open Access Journals (Sweden)

    Björn Blom

    2012-09-01

    Full Text Available This theoretical article describes and discusses the concept of quality in relation to the evaluation of social-work practice. Of particular interest are the difference between quality of services and quality of life and the importance of balancing the stakeholders’ different interests in order to make a sound judgement of quality in social work possible. This article begins with presenting some basic perspectives on quality as well as the transference of the concept of quality from manufacturing industry to social-work practice. Thereafter the two main issues are discussed: the concepts of quality of service and of quality of life and the importance of balancing different stakeholders’ perspectives in the evaluation of quality in social-work practice. This article concludes that: 1 it is crucial to be aware of and to consider the distinction between quality of service and quality of life; 2 clients’ perspective on quality of life is an aspect of outcome that currently receives insufficient attention; 3 clients’ subjective experiences of welfare of well-being deserve greater attention for ethical as well as methodological reasons; and 4 judgement of quality in social work are inevitably dependent on different stakeholders’ perspectives.

  10. Evaluation of animal models of neurobehavioral disorders

    Directory of Open Access Journals (Sweden)

    Nordquist Rebecca E

    2009-02-01

    Full Text Available Abstract Animal models play a central role in all areas of biomedical research. The process of animal model building, development and evaluation has rarely been addressed systematically, despite the long history of using animal models in the investigation of neuropsychiatric disorders and behavioral dysfunctions. An iterative, multi-stage trajectory for developing animal models and assessing their quality is proposed. The process starts with defining the purpose(s of the model, preferentially based on hypotheses about brain-behavior relationships. Then, the model is developed and tested. The evaluation of the model takes scientific and ethical criteria into consideration. Model development requires a multidisciplinary approach. Preclinical and clinical experts should establish a set of scientific criteria, which a model must meet. The scientific evaluation consists of assessing the replicability/reliability, predictive, construct and external validity/generalizability, and relevance of the model. We emphasize the role of (systematic and extended replications in the course of the validation process. One may apply a multiple-tiered 'replication battery' to estimate the reliability/replicability, validity, and generalizability of result. Compromised welfare is inherent in many deficiency models in animals. Unfortunately, 'animal welfare' is a vaguely defined concept, making it difficult to establish exact evaluation criteria. Weighing the animal's welfare and considerations as to whether action is indicated to reduce the discomfort must accompany the scientific evaluation at any stage of the model building and evaluation process. Animal model building should be discontinued if the model does not meet the preset scientific criteria, or when animal welfare is severely compromised. The application of the evaluation procedure is exemplified using the rat with neonatal hippocampal lesion as a proposed model of schizophrenia. In a manner congruent to

  11. Evaluation of Soil Quality: Application of Fuzzy Indicators

    Science.gov (United States)

    The problem of assessing soil quality is considered as the fuzzy modeling task. Fuzzy indicator concept (FIC) is used as a general platform for the assessment of soil quality as a "degree or grade of perfection”. The FIC can be realized through the utilization of fuzzy soil quality indicators (FSQI)...

  12. Influence of visual appearance on loudspeaker sound quality evaluation

    DEFF Research Database (Denmark)

    Karandreas, Theodoros-Alexandros; Christensen, Flemming

    2008-01-01

    Product sound quality evaluation aims to identify relevant attributes and assess their influence on the overall auditory impression. Extending this sound specific rationale, the present study evaluates overall impression in relation to audition and vision, specifically for loudspeakers. In order ...... to quantify the bias that the loudspeaker appearance has on the sound quality evaluation of a naive listening panel, audio stimuli of varied degradation are coupled with actual loudspeakers of different visual appearance....

  13. Model-based monitoring of stormwater runoff quality

    DEFF Research Database (Denmark)

    Birch, Heidi; Vezzaro, Luca; Mikkelsen, Peter Steen

    2013-01-01

    Monitoring of micropollutants (MP) in stormwater is essential to evaluate the impacts of stormwater on the receiving aquatic environment. The aim of this study was to investigate how different strategies for monitoring of stormwater quality (combining a model with field sampling) affect...... the information obtained about MP discharged from the monitored system. A dynamic stormwater quality model was calibrated using MP data collected by automatic volume-proportional sampling and passive sampling in a storm drainage system on the outskirts of Copenhagen (Denmark) and a 10-year rain series was used......) for calibration of the model, resulted in the same predicted level but with narrower model prediction bounds than by using volume-proportional samples for calibration. This shows that passive sampling allows for a better exploitation of the resources allocated for stormwater quality monitoring....

  14. Home care aide evaluation. Assuring competency & quality.

    Science.gov (United States)

    Twardon, C; Cherry, C; Gartner, M

    1992-04-01

    Supervision and evaluation of the direct care provider can be a costly and time-consuming activity. A comprehensive process to coordinate the various aspects of the home care aide evaluation is a creative solution for the efficient use of supervisory and staff time, paperwork reduction, and cost containment.

  15. Development and Evaluation of an Air Quality Modeling Approach to Assess Near-Field Impacts of Lead Emissions from Piston-Engine Aircraft Operating on Leaded Aviation Gasoline

    Science.gov (United States)

    Since aviation gasoline is now the largest remaining source of lead (Pb) emissions to the air in the United States, there is increased interest by regulatory agencies and the public in assessing the impacts on residents living in close proximity to these sources. An air quality m...

  16. Pragmatic guidelines and quality metrics in business process modeling: a case study

    Directory of Open Access Journals (Sweden)

    Isel Moreno-Montes-de-Oca

    2014-04-01

    Full Text Available Business process modeling is one of the first steps towards achieving organizational goals. This is why business process modeling quality is an essential aspect for the development and technical support of any company. This work focuses on the quality of business process models at a conceptual l evel (design and evaluation. In the literature there are works that propose practical guidelines for modeling, while others focus on quality metrics that allow the evaluation of the models. In this paper we use practical guidelines during the modeling phase of a business process for postgraduate studies. We applied a set of quality metrics and compare the results with those obtained from a similar model that did not use guidelines. The results provide support for the use of guidelines as a way for business process modeling quality improvement, and the practical utility of quality metrics in their evaluation.

  17. Develop Quality Characteristics Based Quality Evaluation Process for Ready to Use Software Products

    OpenAIRE

    Daiju Kato; Hiroshi Ishikawa

    2016-01-01

    The users who use ready to use software product had better get the products’ quality information with classified by some kind of global standard metrics or technique for their evaluation. But many of those software products’ co mpanies don’t provide the quality information because of the products are developed b y their own development and evaluation process. But those users want to get quality i...

  18. Comparison of most adaptive meta model With newly created Quality Meta-Model using CART Algorithm

    Directory of Open Access Journals (Sweden)

    Jasbir Malik

    2012-09-01

    Full Text Available To ensure that the software developed is of high quality, it is now widely accepted that various artifacts generated during the development process should be rigorously evaluated using domain-specific quality model. However, a domain-specific quality model should be derived from a generic quality model which is time-proven, well-validated and widely-accepted. This thesis lays down a clear definition of quality meta-model and then identifies various quality meta-models existing in the research and practice-domains. This thesis then compares the various existing quality meta-models to identify which model is the most adaptable to various domains. A set of criteria is used to compare the various quality meta-models. In this we specify the categories, as the CART Algorithms is completely a tree architecture which works on either true or false meta model decision making power .So in the process it has been compared that , if the following items has been found in one category then it falls under true section else under false section .

  19. Water quality modelling of Lis River, Portugal.

    Science.gov (United States)

    Vieira, Judite; Fonseca, André; Vilar, Vítor J P; Boaventura, Rui A R; Botelho, Cidália M S

    2013-01-01

    The aim of the study was to predict the impact of flow conditions, discharges and tributaries on the water quality of Lis River using QUAL2Kw model. Calibration of the model was performed, based on data obtained in field surveys carried out in July 2004 and November 2006. Generally the model fitted quite well the experimental data. The results indicated a decrease of water quality in the downstream area of Lis River, after the confluence of Lena, Milagres and Amor tributaries, as a result of discharges of wastewaters containing degradable organics, nutrients and pathogenic organisms from cattle-raising wastewaters, domestic effluents and agricultural runoff. The water quality criteria were exceeded in these areas for dissolved oxygen, biochemical oxygen demand, total nitrogen and faecal coliforms. Water quality modelling in different scenarios showed that the impact of tributaries on the quality of Lis River water was quite negligible and mainly depends on discharges, which are responsible by an increase of almost 45, 13 and 44 % of ultimate carbonaceous biochemical oxygen demand (CBOD(u)), ammonium nitrogen and faecal coliforms, for winter simulation, and 23, 33 and 36 % for summer simulation, respectively, when compared to the real case scenario.

  20. Model quality assessment using distance constraints from alignments

    DEFF Research Database (Denmark)

    Paluszewski, Martin; Karplus, Kevin

    2008-01-01

    Given a set of alternative models for a specific protein sequence, the model quality assessment (MQA) problem asks for an assignment of scores to each model in the set. A good MQA program assigns these scores such that they correlate well with real quality of the models, ideally scoring best...... with the best MQA methods that were assessed at CASP7. We also propose a new evaluation measure, Kendall's tau, that is more interpretable than conventional measures used for evaluating MQA methods (Pearson's r and Spearman's rho). We show clear examples where Kendall's tau agrees much more with our intuition...... of a correct MQA, and we therefore propose that Kendall's tau be used for future CASP MQA assessments. Proteins 2009. (c) 2008 Wiley-Liss, Inc....

  1. Construction of care service quality evaluation indicator for elderly institution in Chongqing based on SERVQUAL Model%SERVQUAL模型构建重庆市养老机构照护服务的质量评价指标

    Institute of Scientific and Technical Information of China (English)

    李培; 沈军

    2014-01-01

    目的 构建重庆市养老机构照护服务质量评价指标并确定各指标权重.方法 以SERVQUAL模型为指导,采用Delphi法确立评价指标,通过层次分析法计算各指标权重并进行指标一致性检验.结果 确立了重庆市养老机构照护服务质量评价5个一级指标、20个二级指标.其中一级指标分别为“有形性”“可靠性”“响应性”“安全性”“移情性”.各级指标一致性比率(CR)均<0.10,具有满意的一致性检验结果.结论 构建重庆市养老机构照护服务质量评价指标的方法较科学,指标较全面,可在一定程度上提高养老机构的照护服务质量,为养老机构照护质量评价提供一定的参考依据.%Objective To set up care service quality evaluation indicators and establish weight coefficient for assessment of elderly institution in Chongqing.Methods SEVQUAL Model was used as the theoretical guidance,through Delphi expert inquiry,analytic hierarchy process (AHP),the weight of each indicator in five grades and consistency check was calculated.Results The care serv ice quality evaluation indicators contained five first-grade indexes and twenty second-grade indexes.The first-grade indexes included tangibles,reliability,responsiveness,assurance,empathy,respectively.The results of the consisten-cy check of the single grade sorts had a satisfying consistency(CR<0.10).Conclusions The scientific meth-ods and comprehensive indicators were applied to the construction of care service quality e-valuation indicators for elderly institution in Chongqing.In some degree,this construction of indicators may improve quality of care service and provide useful reference evidence for quality assessment in elderly in-stitution.

  2. Innovations in projecting emissions for air quality modeling ...

    Science.gov (United States)

    Air quality modeling is used in setting air quality standards and in evaluating their costs and benefits. Historically, modeling applications have projected emissions and the resulting air quality only 5 to 10 years into the future. Recognition that the choice of air quality management strategy has climate change implications is encouraging longer modeling time horizons. However, for multi-decadal time horizons, many questions about future conditions arise. For example, will current population, economic, and land use trends continue, or will we see shifts that may alter the spatial and temporal pattern of emissions? Similarly, will technologies such as building-integrated solar photovoltaics, battery storage, electric vehicles, and CO2 capture emerge as disruptive technologies - shifting how we produce and use energy - or will these technologies achieve only niche markets and have little impact? These are some of the questions that are being evaluated by researchers within the U.S. EPA’s Office of Research and Development. In this presentation, Dr. Loughlin will describe a range of analytical approaches that are being explored. These include: (i) the development of alternative scenarios of the future that can be used to evaluate candidate management strategies over wide-ranging conditions, (ii) the application of energy system models to project emissions decades into the future and to assess the environmental implications of new technologies, (iii) and methodo

  3. The Evaluation of Teachers' Job Performance Based on Total Quality Management (TQM)

    Science.gov (United States)

    Shahmohammadi, Nayereh

    2017-01-01

    This study aimed to evaluate teachers' job performance based on total quality management (TQM) model. This was a descriptive survey study. The target population consisted of all primary school teachers in Karaj (N = 2917). Using Cochran formula and simple random sampling, 340 participants were selected as sample. A total quality management…

  4. Not Just Because it is Fair - The Role of Feedback Quality and Voice in Performance Evaluation

    NARCIS (Netherlands)

    J. Noeverman (Jan)

    2010-01-01

    textabstractThis paper investigates the role of feedback quality and voice in performance evaluation. A model is developed and tested in which feedback quality and voice enhance procedural fairness perceptions (procedure effects), and procedural fairness perceptions in turn lead to different positiv

  5. Evaluation Research on the Service Quality for Tobacco Monopoly Management based on SERVQUAL Model%基于SERVQUAL模型的烟草专卖服务质量评价研究

    Institute of Scientific and Technical Information of China (English)

    李钊; 陈辉

    2016-01-01

    According to the characteristics of tobacco monopoly services, the paper constructs the evaluation index system of tobacco monopoly service quality by using SERVQUAL model, and the statistical test is carried out to the dimension, reliability and validity of the established evaluation index systeml. Through the regression analysis, the weight of each dimension of the evaluation index system is determined. The results show that the modified model is more suitable for the characteristics of tobacco monopoly services, which has great practical value and provides a useful guide for improving the service quality of tobacco monopoly.%文章结合烟草专卖服务的特点,将SERVQUAL模型运用于烟草专卖服务质量的评价中,构建了烟草专卖服务质量评价指标体系,并对所建立指标体系的维度、信度和效度进行统计验证,得到了修正后的烟草专卖服务质量的评价模型。通过回归分析,确定了评价指标体系各维度的权重。研究表明修正后的模型更适合烟草专卖服务的特征,对烟草专卖管理提高服务质量提供了有益的指导。

  6. 高校体育教学质量评价数学模型的应用研究%A Mathematical Model of Teaching Quality Evaluation of PE in Colleges

    Institute of Scientific and Technical Information of China (English)

    谢碧荣

    2011-01-01

    According to KANO theory,SERVQUAL model is used to evaluate the quality of Physical Education.Students evaluation of PE teaching is classified using indicators of satisfaction with the quality factor formula to calculate the coefficient of increased satisfaction and reduced dissatisfaction coefficient. By analyzing the results, some treasures are proposed for iraprovement.%以KANO理论为基础,应用SERVQUAL模型评价高校体育教学质量。把学生对体育教学质量评价进行归类,运用满意度系数的质量指标公式,计算增加满意系数和降低不满意系数,得出结果并进行分析,提出相应的改进措施,对提高高校体育教学质量具有一定的意义。

  7. On-line evaluating on quality of mild steel joints in resistance spot welding

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    A method was developed to realize quality evaluation on every weld-spot in resistance spot welding based on information processing of artificial intelligent. Firstly, the signals of welding current and welding voltage, as information source, were synchronously collected. Input power and dynamic resistance were selected as monitoring waveforms. Eight characteristic parameters relating to weld quality were extracted from the monitoring waveforms. Secondly, tensile-shear strength of the spot-welded joint was employed as evaluating target of weld quality. Through correlation analysis between every two parameters of characteristic vector, five characteristic parameters were reasonably selected to found a mapping model of weld quality estimation. At last, the model was realized by means of the algorithms of Radial Basic Function neural network and sample matrixes. The results showed validations by a satisfaction in evaluating weld quality of mild steel joint on-line in spot welding process.

  8. Toward the quality evaluation of complex information systems

    Science.gov (United States)

    Todoran, Ion-George; Lecornu, Laurent; Khenchaf, Ali; Le Caillec, Jean-Marc

    2014-06-01

    Recent technological evolutions and developments allow gathering huge amounts of data stemmed from different types of sensors, social networks, intelligence reports, distributed databases, etc. Data quantity and heterogeneity imposed the evolution necessity of the information systems. Nowadays the information systems are based on complex information processing techniques at multiple processing stages. Unfortunately, possessing large quantities of data and being able to implement complex algorithms do not guarantee that the extracted information will be of good quality. The decision-makers need good quality information in the process of decision-making. We insist that for a decision-maker the information and the information quality, viewed as a meta-information, are of great importance. A system not proposing to its user the information quality is in danger of not being correctly used or in more dramatic cases not to be used at all. In literature, especially in organizations management and in information retrieval, can be found some information quality evaluation methodologies. But none of these do not allow the information quality evaluation in complex and changing environments. We propose a new information quality methodology capable of estimating the information quality dynamically with data changes and/or with the information system inner changes. Our methodology is able to instantaneously update the system's output quality. For capturing the information quality changes through the system, we introduce the notion of quality transfer function. It is equivalent to the signal processing transfer function but working on the quality level. The quality transfer function describes the influence of a processing module over the information quality. We also present two different views over the notion of information quality: a global one, characterizing the entire system and a local one, for each processing module.

  9. Exploring the relationship between costs and quality. Does the joint evaluation of costs and quality alter the rankings of Danish hospital departments?

    DEFF Research Database (Denmark)

    Hvenegaard, Anne; Nielsen Arendt, Jacob; Street, Andrew

    2011-01-01

    vascular departments, we estimate fixed effect models for costs (linear) and quality (logistic). We consider two quality measures; mortality and wound complications. To assess whether the joint evaluation of costs and quality affects the ranking of departments, we construct joint confidence regions......OBJECTIVE: The purpose is to evaluate the relationship between costs and quality and to assess whether the joint evaluation of costs and quality affects the ranking of hospital departments relative to comparison based on costs alone. METHODS: Using patient level data for 3,754 patients in six...... for each pair of departmental effects for costs and quality using a bootstrap method and rank departments according to their cost-effectiveness ratio. The findings are used to evaluate a theory of a U-shaped cost/quality relationship. RESULTS: The association between cost and quality differs depending...

  10. 基于生态位模型的高标准基本农田建设适宜性评价%Suitability evaluation on high quality capital farmland consolidation based on niche-fitness model

    Institute of Scientific and Technical Information of China (English)

    赵素霞; 牛海鹏; 张捍卫; 张合兵; 张小虎

    2016-01-01

    It is China's significant strategic move to carry out rural land consolidation and construct high quality capital farmland on a large scale, which ensures stable yields despite drought or excessive rain. However, the construction project of high quality capital farmland is currently with the lack of scientific instruction in line with local conditions in respect of project site selection and design approach. An empirical research was conducted in Xinzheng City to study suitability evaluation and obstacle indicators of high quality capital farmland. Based on the theory of ecological niche and the construction target of high-quality capital farmland, this paper proposed the very concept of high quality capital farmland niche, and established the index system from the different aspects of natural resource endowment, infrastructure, sustainability of high quality capital farmland and its space stability. Thirteen indicators were selected during the evaluation. Then this paper built the niche-fitness evaluation model. Throughout the evaluation model as well as the matching degree between the actual niche and the first-rate niche, 4 levels were divided to pinpoint the niche of the high quality capital farmland in different regions. The farmland in the first level areas was high quality capital farmland; the farmland in the second level areas needed to be improved; the farmland in the third level needed to be comprehensively renovated; and the farmland in the fourth level was not appropriate for exploitation. This paper clarified the niche of the high quality capital farmland in different regions, took the first-rate niche as the sole criterion to establish the diagnosis model of obstacle indicators, analyzed the restricted degree and diversity of the obstacle indicators, clarified the priority and orientation on capital farmland construction in different regions, and sought countermeasures and valid paths. The results were as follows: 1) 14017.72 hm2 farmland was high

  11. An evaluation framework for multimodal interaction determining quality aspects and modality choice

    CERN Document Server

    Wechsung, Ina

    2014-01-01

    This book presents (1) an exhaustive and empirically validated taxonomy of quality aspects of multimodal interaction as well as respective measurement methods, (2) a validated questionnaire specifically tailored to the evaluation of multimodal systems and covering most of the taxonomy‘s quality aspects, (3) insights on how the quality perceptions of multimodal systems relate to the quality perceptions of its individual components, (4) a set of empirically tested factors which influence modality choice, and (5) models regarding the relationship of the perceived quality of a modality and the actual usage of a modality.

  12. Applying revised gap analysis model in measuring hotel service quality.

    Science.gov (United States)

    Lee, Yu-Cheng; Wang, Yu-Che; Chien, Chih-Hung; Wu, Chia-Huei; Lu, Shu-Chiung; Tsai, Sang-Bing; Dong, Weiwei

    2016-01-01

    With the number of tourists coming to Taiwan growing by 10-20 % since 2010, the number has increased due to an increasing number of foreign tourists, particularly after deregulation allowed admitting tourist groups, followed later on by foreign individual tourists, from mainland China. The purpose of this study is to propose a revised gap model to evaluate and improve service quality in Taiwanese hotel industry. Thus, service quality could be clearly measured through gap analysis, which was more effective for offering direction in developing and improving service quality. The HOLSERV instrument was used to identify and analyze service gaps from the perceptions of internal and external customers. The sample for this study included three main categories of respondents: tourists, employees, and managers. The results show that five gaps influenced tourists' evaluations of service quality. In particular, the study revealed that Gap 1 (management perceptions vs. customer expectations) and Gap 9 (service provider perceptions of management perceptions vs. service delivery) were more critical than the others in affecting perceived service quality, making service delivery the main area of improvement. This study contributes toward an evaluation of the service quality of the Taiwanese hotel industry from the perspectives of customers, service providers, and managers, which is considerably valuable for hotel managers. It was the aim of this study to explore all of these together in order to better understand the possible gaps in the hotel industry in Taiwan.

  13. Measures of quality of process models created in BPMN

    Directory of Open Access Journals (Sweden)

    Radek Hronza

    2015-12-01

    Full Text Available Description, documentation, evaluation and redesign of key processes during their execution should be an essential part of the strategic management of any organization. All organizations live in a dynamically changing environment. Therefore they must adapt its internal processes to market changes. These processes must be described. Suitable way of description could be BPMN notation. Right after description of processes via BPMN, processes should be controlled to ensure expected of their quality. System (which could be automated based on mathematical expression of qualitative characteristics of process models (i.e. measures of quality of process models can support mentioned process controls. Research team trying to design and get into practical use such a tool. The aim of this publication is description of mentioned system – based on measures of the quality of process models - and answer associated scientific questions.

  14. Improving Quality Assurance with CDIO Self-Evaluation: Experiences From a Nordic Project

    DEFF Research Database (Denmark)

    Kontio, Juha; Roslöf, Janne; Edström, Kristina

    2012-01-01

    The main goal of the Nordic project Quality Assurance in Higher Education was to develop and implement a self-evaluation model in the participating Higher Education Institutes (HEIs) to support their quality assurance work and continuous curriculum development. Furthermore, the project aimed...... at strengthening the cooperation of HEIs in quality assurance (QA) and disseminating good practices of QA. The framework of development is based on the CDIO approach and the CDIO self-evaluation process. The main results are a detailed definition of the self-evaluation process, well-documented self...

  15. Research of Evaluating Flour Quality by Experiment of Cooking

    Institute of Scientific and Technical Information of China (English)

    XiaoAnhong; PanChongdao; 等

    2000-01-01

    An experiment of flour quality was carried out by means of cooking.It was proven that the flour quality could be evaluated directly,accurately and raliablely by cooking experiment,which should be able to guide reasonble processing and utilizing flour.

  16. A formal model for total quality management

    NARCIS (Netherlands)

    S.C. van der Made-Potuijt; H.B. Bertsch (Boudewijn); L.P.J. Groenewegen

    1996-01-01

    textabstractTotal Quality Management (TQM) is a systematic approach to managing a company. TQM is systematic in the sense that it is uses facts through observation, analysis and measurable goals. There are theoretical descriptions of this management concept, but there is no formal model of it. A for

  17. Potential of mathematical modeling in fruit quality

    African Journals Online (AJOL)

    ONOS

    2010-01-18

    Jan 18, 2010 ... estimate seasonal changes in quality traits as fruit size, dry matter, water content and the concentration of sugars and ... The global goodness-of-fit of a model is computed by averaging the ... into account climate variables such as radiation, salinity, .... and on exponential light extinction (Beer-Lambert Law).

  18. A formal model for total quality management

    NARCIS (Netherlands)

    S.C. van der Made-Potuijt; H.B. Bertsch (Boudewijn); L.P.J. Groenewegen

    1996-01-01

    textabstractTotal Quality Management (TQM) is a systematic approach to managing a company. TQM is systematic in the sense that it is uses facts through observation, analysis and measurable goals. There are theoretical descriptions of this management concept, but there is no formal model of it. A

  19. Evaluating the Contribution of Natural Variability and Climate Model Response to Uncertainty in Projections of Climate Change Impacts on U.S. Air Quality

    Science.gov (United States)

    We examine the effects of internal variability and model response in projections of climate impacts on U.S. ground-level ozone across the 21st century using integrated global system modeling and global atmospheric chemistry simulations. The impact of climate change on air polluti...

  20. Urban water quality evaluation using multivariate analysis

    Directory of Open Access Journals (Sweden)

    Petr Praus

    2007-06-01

    Full Text Available A data set, obtained for the sake of drinking water quality monitoring, was analysed by multivariate methods. Principal component analysis (PCA reduced the data dimensionality from 18 original physico-chemical and microbiological parameters determined in drinking water samples to 6 principal components explaining about 83 % of the data variability. These 6 components represented inorganic salts, nitrate/pH, iron, chlorine, nitrite/ammonium traces, and heterotrophic bacteria. Using the PCA scatter plot and the Ward's clustering of the samples characterized by the first and second principal components, three clusters were revealed. These clusters sorted drinking water samples according to their origin - ground and surface water. The PCA results were confirmed by the factor analysis and hierarchical clustering of the original data.

  1. Towards benchmarking an in-stream water quality model

    Directory of Open Access Journals (Sweden)

    2007-01-01

    Full Text Available A method of model evaluation is presented which utilises a comparison with a benchmark model. The proposed benchmarking concept is one that can be applied to many hydrological models but, in this instance, is implemented in the context of an in-stream water quality model. The benchmark model is defined in such a way that it is easily implemented within the framework of the test model, i.e. the approach relies on two applications of the same model code rather than the application of two separate model codes. This is illustrated using two case studies from the UK, the Rivers Aire and Ouse, with the objective of simulating a water quality classification, general quality assessment (GQA, which is based on dissolved oxygen, biochemical oxygen demand and ammonium. Comparisons between the benchmark and test models are made based on GQA, as well as a step-wise assessment against the components required in its derivation. The benchmarking process yields a great deal of important information about the performance of the test model and raises issues about a priori definition of the assessment criteria.

  2. Evaluating the quality of in-service trainings for employees of Islamic Azad University (Buin-Zahra Branch using CIPP model

    Directory of Open Access Journals (Sweden)

    Aboulfazl Safieepoor

    2013-11-01

    Full Text Available This paper presents an empirical investigation to study the relationship between future profitability and abnormal accruals on selected firms from Tehran Stock Exchange (TSE. The study selects 223 firms from TSE market over the period 2007-2011. Using the regression analysis, the study shows there was no meaningful relationship between abnormal earnings and future profitability when the level of significance is five percent. There are also seven sub-hypotheses associated with the proposed study of this paper. The results indicate that while there were no meaningful relationship between firm size, capital expenditure, earnings quality and earning forecasted error on one side and future earnings, the study confirms a significance relationship between ratio of book value to equity as well as market leverage and future earnings.

  3. Grouped pair-wise comparison for subjective sound quality evaluation

    Institute of Scientific and Technical Information of China (English)

    MAO Dongxing; GAO Yali; YU Wuzhou; WANG Zuomin

    2006-01-01

    In subjective sound quality pair-wise comparison evaluation, test time grows with square of the number of sound stimulus. For this reason, subjective evaluation of large quantity of stimulus is difficult to carry out with pair-wise comparison method. A grouped pair-wise comparison (GPC) method is proposed to greatly decrease time and difficult of subjective comparison test, in which stimuli in the whole evaluation corpus are divided into N test groups,with reference-link stimuli configured in each group. Derived from subjective results of each group, final results of all stimuli are reconstructed, and their perceptual attributes of sound quality can be analyzed. With car interior noise as example, realization of subjective sound quality evaluation with GPC method is introduced. The results of GPC evaluation are in good agreement with those obtained from paired comparison and semantic differential methods.

  4. New approach to equipment quality evaluation method with distinct functions

    Directory of Open Access Journals (Sweden)

    Milisavljević Vladimir M.

    2016-01-01

    Full Text Available The paper presents new approach for improving method for quality evaluation and selection of equipment (devices and machinery by applying distinct functions. Quality evaluation and selection of devices and machinery is a multi-criteria problem which involves the consideration of numerous parameters of various origins. Original selection method with distinct functions is based on technical parameters with arbitrary evaluation of each parameter importance (weighting. Improvement of this method, presented in this paper, addresses the issue of weighting of parameters by using Delphi Method. Finally, two case studies are provided, which included quality evaluation of standard boilers for heating and evaluation of load-haul-dump (LHD machines, to demonstrate applicability of this approach. Analytical Hierarchical Process (AHP is used as a control method.

  5. Development of a water quality loading index based on water quality modeling.

    Science.gov (United States)

    Song, Tao; Kim, Kyehyun

    2009-03-01

    Water quality modeling is an ideal tool for simulating physical, chemical, and biological changes in aquatic systems. It has been utilized in a number of GIS-based water quality management and analysis applications. However, there is considerable need for a decision-making process to translate the modeling result into an understandable form and thereby help users to make relevant judgments and decisions. This paper introduces a water quality index termed QUAL2E water quality loading index (QWQLI). This new WQI is based on water quality modeling by QUAL2E, which is a popular steady-state model for the water quality of rivers and streams. An experiment applying the index to the Sapgyo River in Korea was implemented. Unlike other WQIs, the proposed index is specifically used for simulated water quality using QUAL2E to mainly reflect pollutant loading levels. Based on the index, an iterative modeling-judgment process was designed to make decisions to decrease input pollutants from pollutant sources. Furthermore, an indexing and decision analysis can be performed in a GIS framework, which can provide various spatial analyses. This can facilitate the decision-making process under various scenarios considering spatial variability. The result shows that the index can evaluate and classify the simulation results using QUAL2E and that it can effectively identify the elements that should be improved in the decision-making process. In addition, the results imply that further study should be carried out to automate algorithms and subsidiary programs supporting the decision-making process.

  6. Data Assimilation and Model Evaluation Experiment Datasets.

    Science.gov (United States)

    Lai, Chung-Chieng A.; Qian, Wen; Glenn, Scott M.

    1994-05-01

    The Institute for Naval Oceanography, in cooperation with Naval Research Laboratories and universities, executed the Data Assimilation and Model Evaluation Experiment (DAMÉE) for the Gulf Stream region during fiscal years 1991-1993. Enormous effort has gone into the preparation of several high-quality and consistent datasets for model initialization and verification. This paper describes the preparation process, the temporal and spatial scopes, the contents, the structure, etc., of these datasets.The goal of DAMEE and the need of data for the four phases of experiment are briefly stated. The preparation of DAMEE datasets consisted of a series of processes: 1)collection of observational data; 2) analysis and interpretation; 3) interpolation using the Optimum Thermal Interpolation System package; 4) quality control and re-analysis; and 5) data archiving and software documentation.The data products from these processes included a time series of 3D fields of temperature and salinity, 2D fields of surface dynamic height and mixed-layer depth, analysis of the Gulf Stream and rings system, and bathythermograph profiles. To date, these are the most detailed and high-quality data for mesoscale ocean modeling, data assimilation, and forecasting research. Feedback from ocean modeling groups who tested this data was incorporated into its refinement.Suggestions for DAMEE data usages include 1) ocean modeling and data assimilation studies, 2) diagnosis and theorectical studies, and 3) comparisons with locally detailed observations.

  7. Model validation of channel zapping quality

    OpenAIRE

    Kooij, R.; Nicolai, F.; Ahmed, K.; Brunnström, K.

    2009-01-01

    In an earlier paper we showed, that perceived quality of channel zapping is related to the perceived quality of download time of web browsing, as suggested by ITU-T Rec.G.1030. We showed this by performing subjective tests resulting in an excellent fit with a 0.99 correlation. This was what we call a lean forward experiment and gave the rule of thumb result that the zapping time must be less than 0.43 sec to be good ( > 3.5 on the MOS scale). To validate the model we have done new subjective ...

  8. Iodine absorption cells quality evaluation methods

    Science.gov (United States)

    Hrabina, Jan; Zucco, Massimo; Holá, Miroslava; Šarbort, Martin; Acef, Ouali; Du-Burck, Frédéric; Lazar, Josef; Číp, Ondřej

    2016-12-01

    The absorption cells represent an unique tool for the laser frequency stabilization. They serve as irreplaceable optical frequency references in realization of high-stable laser standards and laser sources for different brands of optical measurements, including the most precise frequency and dimensional measurement systems. One of the most often used absorption media covering visible and near IR spectral range is molecular iodine. It offers rich atlas of very strong and narrow spectral transitions which allow realization of laser systems with ultimate frequency stabilities in or below 10-14 order level. One of the most often disccussed disadvantage of the iodine cells is iodine's corrosivity and sensitivity to presence of foreign substances. The impurities react with absorption media and cause spectral shifts of absorption spectra, spectral broadening of the transitions and decrease achievable signal-to-noise ratio of the detected spectra. All of these unwanted effects directly influence frequency stability of the realized laser standard and due to this fact, the quality of iodine cells must be precisely controlled. We present a comparison of traditionally used method of laser induced fluorescence (LIF) with novel technique based on hyperfine transitions linewidths measurement. The results summarize advantages and drawbacks of these techniques and give a recommendation for their practical usage.

  9. A Statistical Quality Model for Data-Driven Speech Animation.

    Science.gov (United States)

    Ma, Xiaohan; Deng, Zhigang

    2012-11-01

    In recent years, data-driven speech animation approaches have achieved significant successes in terms of animation quality. However, how to automatically evaluate the realism of novel synthesized speech animations has been an important yet unsolved research problem. In this paper, we propose a novel statistical model (called SAQP) to automatically predict the quality of on-the-fly synthesized speech animations by various data-driven techniques. Its essential idea is to construct a phoneme-based, Speech Animation Trajectory Fitting (SATF) metric to describe speech animation synthesis errors and then build a statistical regression model to learn the association between the obtained SATF metric and the objective speech animation synthesis quality. Through delicately designed user studies, we evaluate the effectiveness and robustness of the proposed SAQP model. To the best of our knowledge, this work is the first-of-its-kind, quantitative quality model for data-driven speech animation. We believe it is the important first step to remove a critical technical barrier for applying data-driven speech animation techniques to numerous online or interactive talking avatar applications.

  10. Factor selection for service quality evaluation: a hospital case study.

    Science.gov (United States)

    Ameryoun, Ahmad; Najafi, Seyedvahid; Nejati-Zarnaqi, Bayram; Khalilifar, Seyed Omid; Ajam, Mahdi; Ansarimoghadam, Ahmad

    2017-02-13

    Purpose The purpose of this paper is to develop a systematic approach to predict service quality dimension's influence on service quality using a novel analysis based on data envelopment and SERVQUAL. Design/methodology/approach To assess hospital service quality in Tehran, expectation and perception of those who received the services were evaluated using SERVQUAL. The hospital service quality dimensions were found by exploratory factor analysis (EFA). To compare customer expectation and perception, perceived service quality index (PSQI) was measured using a new method based on common weights. A novel sensitivity approach was used to test the service quality factor's impact on the PSQI. Findings A new service quality dimension named "trust in services" was found using EFA, which is not an original SERVQUAL factor. The approach was applied to assess the hospital's service quality. Since the PSQI value was 0.76 it showed that improvements are needed to meet customer expectations. The results showed the factor order that affect PSQI. "Trust in services" has the strongest influence on PSQI followed by "tangibles," "assurance," "empathy," and "responsiveness," respectively. Practical implications This work gives managers insight into service quality by following a systematic method; i.e., measuring perceived service quality from the customer viewpoint and service factors' impact on customer perception. Originality/value The procedure helps managers to select the required service quality dimensions which need improvement and predict their effects on customer perception.

  11. Quality framework proposal for Component Material Evaluation (CME) projects.

    Energy Technology Data Exchange (ETDEWEB)

    Christensen, Naomi G.; Arfman, John F.; Limary, Siviengxay

    2008-09-01

    This report proposes the first stage of a Quality Framework approach that can be used to evaluate and document Component Material Evaluation (CME) projects. The first stage of the Quality Framework defines two tools that will be used to evaluate a CME project. The first tool is used to decompose a CME project into its essential elements. These elements can then be evaluated for inherent quality by looking at the subelements that impact their level of quality maturity or rigor. Quality Readiness Levels (QRLs) are used to valuate project elements for inherent quality. The Framework provides guidance for the Principal Investigator (PI) and stakeholders for CME project prerequisites that help to ensure the proper level of confidence in the deliverable given its intended use. The Framework also Provides a roadmap that defined when and how the Framework tools should be applied. Use of these tools allow the Principal Investigator (PI) and stakeholders to understand what elements the project will use to execute the project, the inherent quality of the elements, which of those are critical to the project and why, and the risks associated to the project's elements.

  12. Evaluating the Role of Content in Subjective Video Quality Assessment

    Directory of Open Access Journals (Sweden)

    Milan Mirkovic

    2014-01-01

    Full Text Available Video quality as perceived by human observers is the ground truth when Video Quality Assessment (VQA is in question. It is dependent on many variables, one of them being the content of the video that is being evaluated. Despite the evidence that content has an impact on the quality score the sequence receives from human evaluators, currently available VQA databases mostly comprise of sequences which fail to take this into account. In this paper, we aim to identify and analyze differences between human cognitive, affective, and conative responses to a set of videos commonly used for VQA and a set of videos specifically chosen to include video content which might affect the judgment of evaluators when perceived video quality is in question. Our findings indicate that considerable differences exist between the two sets on selected factors, which leads us to conclude that videos starring a different type of content than the currently employed ones might be more appropriate for VQA.

  13. Evaluating the Role of Content in Subjective Video Quality Assessment

    Science.gov (United States)

    Vrgovic, Petar

    2014-01-01

    Video quality as perceived by human observers is the ground truth when Video Quality Assessment (VQA) is in question. It is dependent on many variables, one of them being the content of the video that is being evaluated. Despite the evidence that content has an impact on the quality score the sequence receives from human evaluators, currently available VQA databases mostly comprise of sequences which fail to take this into account. In this paper, we aim to identify and analyze differences between human cognitive, affective, and conative responses to a set of videos commonly used for VQA and a set of videos specifically chosen to include video content which might affect the judgment of evaluators when perceived video quality is in question. Our findings indicate that considerable differences exist between the two sets on selected factors, which leads us to conclude that videos starring a different type of content than the currently employed ones might be more appropriate for VQA. PMID:24523643

  14. The study of surgical image quality evaluation system by subjective quality factor method

    Science.gov (United States)

    Zhang, Jian J.; Xuan, Jason R.; Yang, Xirong; Yu, Honggang; Koullick, Edouard

    2016-03-01

    GreenLightTM procedure is an effective and economical way of treatment of benign prostate hyperplasia (BPH); there are almost a million of patients treated with GreenLightTM worldwide. During the surgical procedure, the surgeon or physician will rely on the monitoring video system to survey and confirm the surgical progress. There are a few obstructions that could greatly affect the image quality of the monitoring video, like laser glare by the tissue and body fluid, air bubbles and debris generated by tissue evaporation, and bleeding, just to name a few. In order to improve the physician's visual experience of a laser surgical procedure, the system performance parameter related to image quality needs to be well defined. However, since image quality is the integrated set of perceptions of the overall degree of excellence of an image, or in other words, image quality is the perceptually weighted combination of significant attributes (contrast, graininess …) of an image when considered in its marketplace or application, there is no standard definition on overall image or video quality especially for the no-reference case (without a standard chart as reference). In this study, Subjective Quality Factor (SQF) and acutance are used for no-reference image quality evaluation. Basic image quality parameters, like sharpness, color accuracy, size of obstruction and transmission of obstruction, are used as subparameter to define the rating scale for image quality evaluation or comparison. Sample image groups were evaluated by human observers according to the rating scale. Surveys of physician groups were also conducted with lab generated sample videos. The study shows that human subjective perception is a trustworthy way of image quality evaluation. More systematic investigation on the relationship between video quality and image quality of each frame will be conducted as a future study.

  15. Meat quality evaluation by hyperspectral imaging technique: an overview.

    Science.gov (United States)

    Elmasry, Gamal; Barbin, Douglas F; Sun, Da-Wen; Allen, Paul

    2012-01-01

    During the last two decades, a number of methods have been developed to objectively measure meat quality attributes. Hyperspectral imaging technique as one of these methods has been regarded as a smart and promising analytical tool for analyses conducted in research and industries. Recently there has been a renewed interest in using hyperspectral imaging in quality evaluation of different food products. The main inducement for developing the hyperspectral imaging system is to integrate both spectroscopy and imaging techniques in one system to make direct identification of different components and their spatial distribution in the tested product. By combining spatial and spectral details together, hyperspectral imaging has proved to be a promising technology for objective meat quality evaluation. The literature presented in this paper clearly reveals that hyperspectral imaging approaches have a huge potential for gaining rapid information about the chemical structure and related physical properties of all types of meat. In addition to its ability for effectively quantifying and characterizing quality attributes of some important visual features of meat such as color, quality grade, marbling, maturity, and texture, it is able to measure multiple chemical constituents simultaneously without monotonous sample preparation. Although this technology has not yet been sufficiently exploited in meat process and quality assessment, its potential is promising. Developing a quality evaluation system based on hyperspectral imaging technology to assess the meat quality parameters and to ensure its authentication would bring economical benefits to the meat industry by increasing consumer confidence in the quality of the meat products. This paper provides a detailed overview of the recently developed approaches and latest research efforts exerted in hyperspectral imaging technology developed for evaluating the quality of different meat products and the possibility of its widespread

  16. A subjective study to evaluate video quality assessment algorithms

    Science.gov (United States)

    Seshadrinathan, Kalpana; Soundararajan, Rajiv; Bovik, Alan C.; Cormack, Lawrence K.

    2010-02-01

    Automatic methods to evaluate the perceptual quality of a digital video sequence have widespread applications wherever the end-user is a human. Several objective video quality assessment (VQA) algorithms exist, whose performance is typically evaluated using the results of a subjective study performed by the video quality experts group (VQEG) in 2000. There is a great need for a free, publicly available subjective study of video quality that embodies state-of-the-art in video processing technology and that is effective in challenging and benchmarking objective VQA algorithms. In this paper, we present a study and a resulting database, known as the LIVE Video Quality Database, where 150 distorted video sequences obtained from 10 different source video content were subjectively evaluated by 38 human observers. Our study includes videos that have been compressed by MPEG-2 and H.264, as well as videos obtained by simulated transmission of H.264 compressed streams through error prone IP and wireless networks. The subjective evaluation was performed using a single stimulus paradigm with hidden reference removal, where the observers were asked to provide their opinion of video quality on a continuous scale. We also present the performance of several freely available objective, full reference (FR) VQA algorithms on the LIVE Video Quality Database. The recent MOtion-based Video Integrity Evaluation (MOVIE) index emerges as the leading objective VQA algorithm in our study, while the performance of the Video Quality Metric (VQM) and the Multi-Scale Structural SIMilarity (MS-SSIM) index is noteworthy. The LIVE Video Quality Database is freely available for download1 and we hope that our study provides researchers with a valuable tool to benchmark and improve the performance of objective VQA algorithms.

  17. Taking Teacher Quality Seriously: A Collaborative Approach to Teacher Evaluation

    Science.gov (United States)

    Karp, Stan

    2012-01-01

    If narrow, test-based evaluation of teachers is unfair, unreliable, and has negative effects on kids, classrooms, and curricula, what's a better approach? By demonizing teachers and unions, and sharply polarizing the education debate, the corporate reform movement has actually undermined serious efforts to improve teacher quality and evaluation.…

  18. Taking Teacher Quality Seriously: A Collaborative Approach to Teacher Evaluation

    Science.gov (United States)

    Karp, Stan

    2012-01-01

    If narrow, test-based evaluation of teachers is unfair, unreliable, and has negative effects on kids, classrooms, and curricula, what's a better approach? By demonizing teachers and unions, and sharply polarizing the education debate, the corporate reform movement has actually undermined serious efforts to improve teacher quality and evaluation.…

  19. Integral evaluation of operating quality and the deciding of management strategy in productive coal mines

    Institute of Scientific and Technical Information of China (English)

    ZHAO Jing-li(赵景礼)

    2004-01-01

    According to overall mean square root of weighted deviation, presented an evaluation model of "geology-technique-social conditions" with a significant index system for the estimation of operating quality in productive coal mines. In the given example, the evaluation result is used to decide management strategy of coal mine, which plays a guiding role in the production.

  20. Quality Evaluation in Flexible Manufacturing Systems: A Markovian Approach

    Directory of Open Access Journals (Sweden)

    Jingshan Li

    2007-01-01

    to illustrate the applicability of the method. The results of this study suggest a possible approach to investigate the impact of flexibility on product quality and, finally, with extensions and enrichment of the model, may lead to provide production engineers and managers a better understanding of the quality implications and to summarize some general guidelines of operation management in flexible manufacturing systems.

  1. Air quality modeling`s brave new world

    Energy Technology Data Exchange (ETDEWEB)

    Appleton, E.L.

    1996-05-01

    Since 1992, EPA has been creating a new generation of software - Models-3 - that is widely regarded as the next-generation air quality modeling system. The system has a modular framework that allows users to integrate a broad variety of air quality models. In the future, users will also be able to plug in economic decision support tools. A prototype version of Models-3 already exists in the Atmospheric Modeling Division of EPA`s National Exposure Research Laboratory in Research Triangle Park. EDSS was developed as a raid prototype of Models-3 under a three-year, $7.8 million cooperative agreement with EPA. An operational version of Models-3 may be in the hands of scientists and state air quality regulators by late 1997. Developers hope the new, more user-friendly system will make it easier to run models and present information to policy makers in graphical ways that are easy to understand. In addition, Models-3 will ultimately become a so-called `comprehensive modeling system` that enables users to simulate pollutants in other media, such as water. EPA also plans to include models that simulate health effects and other pollution consequences. 6 refs.

  2. Study on Evaluation of Supplier s Quality Assurance System

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    To be a worldwide competitor, enterprise needs to e va luate and select its supplier carefully. Generally, to evaluate a supplier, the evaluating effort is focused on the purchase price, delivery time, product quali ty, etc. The vendors' quality assurance is seldom considered. However, it reflec ts the ability that a vendor can provide high quality but low cost products cont inuously and stably. In this paper, with the study on evaluation of supplier's q uality assurance system, a set of methods and indice...

  3. Research on Risk Assessment Index System and Evaluation Model for Equipment Quality Management%装备质量管理风险评估指标体系及评估模型研究

    Institute of Scientific and Technical Information of China (English)

    谢剑锋; 宋华文; 李元左

    2011-01-01

    The construction of index system for risk assessment of equipment quality management is the basis of risk assessment. In accordance with the characteristics of equipment quality management, risk factors have been analyzed. According to the design principles of indexes system, the index system structure of risk assessment is constructed. And then, the evaluation model which based on ANP and blind number theory is constructed.%装备质量管理风险评估指标体系的构建,是风险评估的基础性工作.本文根据装备质量管理的特点,分析了装备质量管理的风险因素,并依据指标体系的设计原则,建立了装备质量管理风险评估的指标体系结构,并给出了基于网络层次分析法和盲数理论的装备质量管理风险评估模型.

  4. Evaluation of Model Recognition for Grammar-Based Automatic 3d Building Model Reconstruction

    Science.gov (United States)

    Yu, Qian; Helmholz, Petra; Belton, David

    2016-06-01

    In recent years, 3D city models are in high demand by many public and private organisations, and the steadily growing capacity in both quality and quantity are increasing demand. The quality evaluation of these 3D models is a relevant issue both from the scientific and practical points of view. In this paper, we present a method for the quality evaluation of 3D building models which are reconstructed automatically from terrestrial laser scanning (TLS) data based on an attributed building grammar. The entire evaluation process has been performed in all the three dimensions in terms of completeness and correctness of the reconstruction. Six quality measures are introduced to apply on four datasets of reconstructed building models in order to describe the quality of the automatic reconstruction, and also are assessed on their validity from the evaluation point of view.

  5. ISO9126 BASED SOFTWARE QUALITY EVALUATION USING CHOQUET INTEGRAL

    Directory of Open Access Journals (Sweden)

    Abdelkareem M. Alashqar

    2015-01-01

    Full Text Available Evaluating software quality is an important and essential issue in the development process because it helps to deliver a competitive software product. A decision of selecting the best software based on quality attributes is a type of multi-criteria decision-making (MCDM processes where interactions among criteria should be considered. This paper presents and develops quantitative evaluations by considering interactions among criteria in the MCDM problems. The aggregator methods such as Arithmetic Mean (AM and Weighted Arithmetic Mean (WAM are introduced, described and compared to Choquet Integral (CI approach which is a type of fuzzy measure used as a new method for MCDM. The comparisons are shown by evaluating and ranking software alternatives based on six main quality attributes as identified by the ISO 9126-1 standard. The evaluation experiments depend on real data collected from case studies.

  6. Tests for evaluating the physiological quality of pitaya seeds

    Directory of Open Access Journals (Sweden)

    Thiago Alberto Ortiz

    2015-12-01

    Full Text Available Germination test is used to assess the physiological quality of seeds; however, since it is carried out under ideal conditions, this test has not been shown sufficient for this purpose. Instead, it is possible to use vigor tests, although the lack of standardized methodologies has reduced their applicability and reproducibility. Thus, this study aimed to develop methodologies for conducting tests of germination, accelerated aging, and electrical conductivity for the evaluation of the physiological quality of pitaya seeds. For this purpose, seeds from ripe Hylocereus undatus fruits were used. A completely randomized experimental design was used with four replications. The physiological quality of the seeds was assessed using germination, accelerated aging, and electrical conductivity tests, and the speed of germination index (SGI and mean germination time (MGT were determined for both the germination test and accelerated aging test. For the statistical analysis, we performed regression model adjustments and calculated the Pearson correlation coefficient (p < 0.05. The germination test for H. undatus seeds can be performed at 25 °C, with the aim of reaching the highest SGI and lowest MGT values. The accelerated aging test can be conducted at 43 °C for 48 h, because combining these factors favors the expression of seed vigor, allowing seeds to achieve the maximum SGI and minimum MGT, while reducing the time of the assay. The electrical conductivity test can be performed using 25 seeds at a temperature of 30 °C and a water volume of 10 mL, since under these conditions there is less interference from external factors on the leachate content of the solution.

  7. Evaluating supplier quality performance using fuzzy analytical hierarchy process

    Science.gov (United States)

    Ahmad, Nazihah; Kasim, Maznah Mat; Rajoo, Shanmugam Sundram Kalimuthu

    2014-12-01

    Evaluating supplier quality performance is vital in ensuring continuous supply chain improvement, reducing the operational costs and risks towards meeting customer's expectation. This paper aims to illustrate an application of Fuzzy Analytical Hierarchy Process to prioritize the evaluation criteria in a context of automotive manufacturing in Malaysia. Five main criteria were identified which were quality, cost, delivery, customer serviceand technology support. These criteria had been arranged into hierarchical structure and evaluated by an expert. The relative importance of each criteria was determined by using linguistic variables which were represented as triangular fuzzy numbers. The Center of Gravity defuzzification method was used to convert the fuzzy evaluations into their corresponding crisps values. Such fuzzy evaluation can be used as a systematic tool to overcome the uncertainty evaluation of suppliers' performance which usually associated with human being subjective judgments.

  8. Evaluating the quality of antimicrobial prescribing: is standardisation possible?

    Science.gov (United States)

    Retamar, Pilar; Martín, M Luisa; Molina, José; del Arco, Alfonso

    2013-09-01

    The quality of antimicrobial prescribing refers to the optimal way to use antibiotics in regard to their benefits, safety (e.g., resistance generation and toxicity) and cost. Evaluating the quality of antimicrobial prescribing in a way that focuses not only on reducing antimicrobial consumption but also on using them in a more optimal way allows us to understand patterns of use and to identify targets for intervention. The lack of standardisation is the primary problem to be addressed when planning an evaluation of antimicrobial prescribing. There is little information specifically describing an evaluation methodology. Information related to prescription evaluation can be obtained from the guidelines of Antimicrobial Stewardship Programs (ASPs) and from local and international experience. The criteria used to evaluate the quality of prescription should include the indication for antimicrobial therapy, the timeliness of initiation, the correct antibiotic choice (according to local guidelines), the dosing, the duration, the route of administration and the time at which to switch to oral administration. A locally developed guideline on antimicrobial therapy should preferably be the gold standard by which to evaluate the appropriatenes of prescriptions. Various approaches used to carry out the evaluations have been described in the literature. Repeated point-prevalence surveys (PPS) have been proven to be effective in identifying targets for quality improvement. Continuous prospective monitoring allows the identification of more precise intervention points at different times during prescription. The design of the study chosen to perform the evaluation should be adapted according to the resources available in each centre. Evaluating the quality of antimicrobial prescribing should be the first step to designing ASPs, as well as to evaluating their impact and the changes in prescribing trends over time. Copyright © 2013 Elsevier España, S.L. All rights reserved.

  9. Water quality modeling using geographic information system (GIS) data

    Science.gov (United States)

    Engel, Bernard A

    1992-01-01

    Protection of the environment and natural resources at the Kennedy Space Center (KSC) is of great concern. The potential for surface and ground water quality problems resulting from non-point sources of pollution was examined using models. Since spatial variation of parameters required was important, geographic information systems (GIS) and their data were used. The potential for groundwater contamination was examined using the SEEPAGE (System for Early Evaluation of the Pollution Potential of Agricultural Groundwater Environments) model. A watershed near the VAB was selected to examine potential for surface water pollution and erosion using the AGNPS (Agricultural Non-Point Source Pollution) model.

  10. Evaluating supplier quality performance using analytical hierarchy process

    Science.gov (United States)

    Kalimuthu Rajoo, Shanmugam Sundram; Kasim, Maznah Mat; Ahmad, Nazihah

    2013-09-01

    This paper elaborates the importance of evaluating supplier quality performance to an organization. Supplier quality performance evaluation reflects the actual performance of the supplier exhibited at customer's end. It is critical in enabling the organization to determine the area of improvement and thereafter works with supplier to close the gaps. Success of the customer partly depends on supplier's quality performance. Key criteria as quality, cost, delivery, technology support and customer service are categorized as main factors in contributing to supplier's quality performance. 18 suppliers' who were manufacturing automotive application parts evaluated in year 2010 using weight point system. There were few suppliers with common rating which led to common ranking observed by few suppliers'. Analytical Hierarchy Process (AHP), a user friendly decision making tool for complex and multi criteria problems was used to evaluate the supplier's quality performance challenging the weight point system that was used for 18 suppliers'. The consistency ratio was checked for criteria and sub-criteria. Final results of AHP obtained with no overlap ratings, therefore yielded a better decision making methodology as compared to weight point rating system.

  11. An Examination of Perceived Quality, Satisfaction, and Loyalty Relationship: Applicability of Comparative and Noncomparative Evaluation

    Directory of Open Access Journals (Sweden)

    Licen Indahwati Darsono

    2006-09-01

    Full Text Available This paper evaluates alternative measurement approaches to investigating the relationship amongst perceived quality, customer satisfaction, and loyalty. The authors define and measure the constructs within a relative attitudinal framework and compare these results to a noncomparative or individual evaluation of brands. In addition, loyalty is measured by and defined as a behavioral and attitudinal loyalty. The object of this research is teh botol whilst the subjects are undergraduate students in Surabaya and Yogyakarta. The proposed model, with satisfaction as a mediator between quality and loyalty, is found to be an acceptable representation of data across three brands of teh botol and for both comparative and noncomparative evaluation. The use of relative attitude, however, indicates a much stronger relationship amongst perceived quality, satisfaction, and loyalty than the attitude towards a brand when they are performed in individual evaluation. With respect to predictive ability, this study’s findings suggest that comparative evaluation has higher degree of applicability than does noncomparative evaluation.

  12. Model evaluation methodology applicable to environmental assessment models

    Energy Technology Data Exchange (ETDEWEB)

    Shaeffer, D.L.

    1979-08-01

    A model evaluation methodology is presented to provide a systematic framework within which the adequacy of environmental assessment models might be examined. The necessity for such a tool is motivated by the widespread use of models for predicting the environmental consequences of various human activities and by the reliance on these model predictions for deciding whether a particular activity requires the deployment of costly control measures. Consequently, the uncertainty associated with prediction must be established for the use of such models. The methodology presented here consists of six major tasks: model examination, algorithm examination, data evaluation, sensitivity analyses, validation studies, and code comparison. This methodology is presented in the form of a flowchart to show the logical interrelatedness of the various tasks. Emphasis has been placed on identifying those parameters which are most important in determining the predictive outputs of a model. Importance has been attached to the process of collecting quality data. A method has been developed for analyzing multiplicative chain models when the input parameters are statistically independent and lognormally distributed. Latin hypercube sampling has been offered as a promising candidate for doing sensitivity analyses. Several different ways of viewing the validity of a model have been presented. Criteria are presented for selecting models for environmental assessment purposes.

  13. Voice and Speech Quality Perception Assessment and Evaluation

    CERN Document Server

    Jekosch, Ute

    2005-01-01

    Foundations of Voice and Speech Quality Perception starts out with the fundamental question of: "How do listeners perceive voice and speech quality and how can these processes be modeled?" Any quantitative answers require measurements. This is natural for physical quantities but harder to imagine for perceptual measurands. This book approaches the problem by actually identifying major perceptual dimensions of voice and speech quality perception, defining units wherever possible and offering paradigms to position these dimensions into a structural skeleton of perceptual speech and voice quality. The emphasis is placed on voice and speech quality assessment of systems in artificial scenarios. Many scientific fields are involved. This book bridges the gap between two quite diverse fields, engineering and humanities, and establishes the new research area of Voice and Speech Quality Perception.

  14. 机场服务质量之评价%An Evaluation of the Service Quality of Airport

    Institute of Scientific and Technical Information of China (English)

    周建张

    2009-01-01

    The evaluation of airport service quality is an important issue in the air travel transportation industry.The aim of this paper is to construct a SERVQUAL method for evaluating the service quality of airport.This assessment model is tested by a Taiwanese airport.The results show that this assessment model proposed in this paper seems to be promising.Finally,some interesting conclusions and useful suggestions are given to airport to improve the service quality.

  15. Quality assurance of atmospheric dispersion models. Evaluation, assessment and generation of records for model validation; Qualitaetssicherung von Modellen fuer die Ausbreitung von Schadstoffen in der Atmosphaere. Sichtung, Bewertung und Erzeugung von Datensaetzen fuer die Modellvalidierung

    Energy Technology Data Exchange (ETDEWEB)

    Schatzmann, M.; Leitl, B.

    2001-01-01

    Financed by the German Environmental Agency a base of reference data has been generated, which is specifically suited to test and validate microscale flow and dispersion models. A fundamental concept for establishing a reference database has been developed and a set of basic requirements for validation data was defined. The laboratory standards and techniques applied in the boundary layer wind tunnel laboratory at Hamburg University were improved according to the higher quality standards required for generating laboratory data with reference quality. Extensive wind tunnel experiments have been carried out from which the fully documented validation data sets were compiled. All data generated within the scope of the project have been published on an Internet database enabling all potential users to have easy access to the reference data. Further data sets from existing wind tunnel experiments were quality checked and added to the data base. At present, the CEDVAL database, which is accessible under www.mi.uni-hamburg.de backslash cedval consists of 12 complete validation data sets. (orig.) [German] Im Auftrag des Umweltbundesamtes wurde ein speziell an die Erfordernisse der Validierung mikroskaliger Stroemungs- und Ausbreitungsmodelle angepasster Referenzdatenfundus geschaffen. Es wurde ein Konzept zum Aufbau einer Validierungsdatenbank bereitgestellt und ein die Generierung qualitativ abgesicherter Vergleichsdatensaetze unterstuetzender Anforderungskatalog an Validierungsdaten entwickelt. Nach Anpassung der im Windkanallabor des Meteorologischen Instituts der Universitaet Hamburg vorhandenen Labor- und Versuchstechnik an die speziellen Erfordernisse zur Generierung qualitativ abgesicherter Vergleichsdatensaetze, wurden mehrere, vollstaendig dokumentierte, systematisch aufgebaute Validierungsdatensaetze erzeugt. Die im Projekt erzeugten systematischen Referenzdatensaetze wurden in einer Internet-Datenbank einem breiten Nutzerkreis zur Verfuegung gestellt. Im Rahmen

  16. Evaluation of CNN as anthropomorphic model observer

    Science.gov (United States)

    Massanes, Francesc; Brankov, Jovan G.

    2017-03-01

    Model observers (MO) are widely used in medical imaging to act as surrogates of human observers in task-based image quality evaluation, frequently towards optimization of reconstruction algorithms. In this paper, we explore the use of convolutional neural networks (CNN) to be used as MO. We will compare CNN MO to alternative MO currently being proposed and used such as the relevance vector machine based MO and channelized Hotelling observer (CHO). As the success of the CNN, and other deep learning approaches, is rooted in large data sets availability, which is rarely the case in medical imaging systems task-performance evaluation, we will evaluate CNN performance on both large and small training data sets.

  17. Evaluation of 60 continuous quality improvement projects in French hospitals.

    Science.gov (United States)

    Maguerez, G; Erbault, M; Terra, J L; Maisonneuve, H; Matillon, Y

    2001-04-01

    To evaluate the feasibility of implementing continuous quality improvement (CQI) projects in French health care organizations. The French Ministry of Health issued two calls for CQI projects (in 1995 and 1996). ANAES was commissioned to monitor and evaluate the projects, and to provide advice. ANAES in collaboration with French public hospitals. A jury selected 64 projects from 483 submissions. The first series of projects related to safety issues (e.g. blood transfusions), the second related chiefly to patient management. ANAES instructed project leaders in process analysis (modified four-step FOCUS-PDCA model), convened regular meetings between leaders and performed on-site visits. Objective outcomes: goal achievement, extension of projects to other topics and departments, allocation of resources. Subjective outcomes: changes in attitudes. Statistics were obtained from two questionnaires completed by project leaders. Four projects were discontinued; 82% (49 out of 60) met more than half their objectives. The CQI method was adopted by other departments in 65% and 50% (1st and 2nd series respectively) of cases. Hospital management often chose to provide continued support (81%/88%), offer training (59%/80%), create a CQI unit (62%/73%), and allocate a budget (61%/65%). A positive impact on staff attitudes was noted in over 75% of projects. ANAES' co-ordinated initiative to acquaint a hard core of French public hospitals with CQI proved successful. Identification of the factors for success and of potential hurdles helped pave the way for the national hospital accreditation procedure currently underway.

  18. Ultrasound Image Quality Assessment: A framework for evaluation of clinical image quality

    DEFF Research Database (Denmark)

    Hemmsen, Martin Christian; Pedersen, Mads Møller; Nikolov, Svetoslav Ivanov

    2010-01-01

    Improvement of ultrasound images should be guided by their diagnostic value. Evaluation of clinical image quality is generally performed subjectively, because objective criteria have not yet been fully developed and accepted for the evaluation of clinical image quality. Based on recommendation 500...... from the International Telecommunication Union - Radiocommunication (ITU-R) for such subjective quality assessment, this work presents equipment and a methodology for clinical image quality evaluation for guiding the development of new and improved imaging. The system is based on a BK-Medical 2202 Pro......Focus scanner equipped with a UA2227 research interface, connected to a PC through X64-CL Express camera link. Data acquisition features subject data recording, loading/saving of exact scanner settings (for later experiment reproducibility), free access to all system parameters for beamformation...

  19. Report. no. 20. Sensory evaluation of indoor air quality

    DEFF Research Database (Denmark)

    Berglund, Birgitta; Bluyssen, Philomena; Clausen, Geo

    Human subjects are indispensable in the measurement of perceived indoor air quality. Chemical and physical methods of characterisation often are insensitive to odorous and sensory irritating air pollutants, or do not take account of combinations of singular pollutants in a biologically meaningful...... way. Therefore, sensory methods many times are the only or the preferred tool for evaluation of perceived indoor air quality. This report presents background to and advice on methodologies for sensory evaluation of perceived indoor air quality. It proposes methods which apply to source assessments...... as well as field investigations. The methods will assist in labelling of building materials, characterising air quality in indoor spaces, controlling ventilation performance, and measuring occupant responses in questionnaire field studies of the sick building syndrome. The proposed methods will enable...

  20. La no neutralidad en la evaluacion de la calidad y modelos de evaluacion de la educación superior, casos de: Colombia, Argentina y Brasil Neutrality in quality evaluation and in models of higher education evaluation: the cases of Colombia, Argentina and Brazil

    Directory of Open Access Journals (Sweden)

    Nina Eleonor Vizcarra Herles

    2011-07-01

    Full Text Available En este artículo en base al análisis documental y de la literatura del área se aborda el tema de la no neutralidad de la evaluación de la calidad, se exploran dimensiones en el concepto de calidad proponiendo un modelo comprensivo, se identifican factores que contribuyen a la no neutralidad del concepto en referencia a las instituciones universitarias. Se enfatiza en que los elementos de referencia considerados valiosos para el evaluador (modelo de referencia comunican características diferenciales a los modelos de evaluación institucional y de programas para educación superior haciendo mención a los casos de Colombia, Argentina y Brasil y se analizan las diversas implicancias en su funcionamiento. Se infiere que contribuyen a la no neutralidad de la evaluación de la calidad: el énfasis conceptual en alguna o algunas dimensiones de la calidad, el propósito que es de interés del evaluador, el cual determina el referente de calidad a utilizar, y las demandas de calidad endógenas y exógenas a la institución, programa o sistema que es objeto de evaluación.This article founded on documental analysis as well as on analysis of the literature in the field, addresses the issue of non-neutrality of quality assessment; it discusses dimensions of the quality concept, identifies factors that contribute to the non-neutrality of quality in reference to universities. It emphasizes that the benchmarks that are considered valuable to the evaluator (reference model, give different characteristics to the institutional and program evaluation models for higher education, making reference to the cases of Colombia, Argentina and Brazil and discusses the different implications of its operation. It is inferred that what contributes to the non-neutrality of quality assessment are: the conceptual emphasis on one or on several quality dimensions, the purpose of the evaluator, which determines the quality benchmarks he uses, and the demands for quality which

  1. Water quality evaluation of Al-Gharraf river by two water quality indices

    Science.gov (United States)

    Ewaid, Salam Hussein

    2016-12-01

    Water quality of Al-Gharraf river, the largest branch of Tigris River south of Iraq, was evaluated by the National Sanitation Foundation Water Quality Index (NFS WQI) and the Heavy Metal Pollution Index (HPI) depending on 13 physical, chemical, and biological parameters of water quality measured monthly at ten stations on the river during 2015. The NSF-WQI range obtained for the sampling sites was 61-70 indicating a medium water quality. The HPI value was 98.6 slightly below the critical value for drinking water of 100, and the water quality in the upstream stations is better than downstream due to decrease in water and the accumulation of contaminants along the river. This study explains the significance of applying the water quality indices that show the aggregate impact of ecological factors in charge of water pollution of surface water and which permits translation of the monitoring data to assist the decision makers.

  2. The Information Service Evaluation (ISE Model

    Directory of Open Access Journals (Sweden)

    Laura Schumann

    2014-06-01

    Full Text Available Information services are an inherent part of our everyday life. Especially since ubiquitous cities are being developed all over the world their number is increasing even faster. They aim at facilitating the production of information and the access to the needed information and are supposed to make life easier. Until today many different evaluation models (among others, TAM, TAM 2, TAM 3, UTAUT and MATH have been developed to measure the quality and acceptance of these services. Still, they only consider subareas of the whole concept that represents an information service. As a holistic and comprehensive approach, the ISE Model studies five dimensions that influence adoption, use, impact and diffusion of the information service: information service quality, information user, information acceptance, information environment and time. All these aspects have a great impact on the final grading and of the success (or failure of the service. Our model combines approaches, which study subjective impressions of users (e.g., the perceived service quality, and user-independent, more objective approaches (e.g., the degree of gamification of a system. Furthermore, we adopt results of network economics, especially the "Success breeds success"-principle.

  3. Biofuels and water quality: challenges and opportunities for simulation modeling

    Energy Technology Data Exchange (ETDEWEB)

    Engel, Bernard A. [Purdue University; Chaubey, Indrajeet [Purdue University; Thomas, Mark [Purdue University; Saraswat, Dharmendra [University of Arkansas; Murphy, Patrick [Purdue University; Bhaduri, Budhendra L [ORNL

    2010-01-01

    Quantification of the various impacts of biofuel feedstock production on hydrology and water quality is complex. Mathematical models can be used to efficiently evaluate various what if scenarios related to biofeedstock production and their impacts on hydrology and water quality at various spatial and temporal scales. Currently available models, although having the potential to serve such purposes, have many limitations. In this paper, we review the strengths and weaknesses of such models in light of short- and long term biofeedstock production scenarios. The representation of processes in the currently available models and how these processes need to be modified to fully evaluate various complex biofeedstock production scenarios are discussed. Similarly, issues related to availability of data that are needed to parameterize and evaluate these models are presented. We have presented a vision for the development of decision support tools and ecosystem services that can be used to make watershed management decisions to minimize any potentially adverse environmental impacts while meeting biofeedstock demands. We also discuss a case study of biofeedstock impact simulation in relation to watershed management policy implications for various state and federal agencies in the USA.

  4. METHODOLOGY FOR EVALUATION OF QUALITY MANAGEMENT SYSTEM EFFICIENCY

    Directory of Open Access Journals (Sweden)

    D. A. Yamnaja

    2010-01-01

    Full Text Available The National Technical Committee on standardization “Quality Control” has proposed a mechanism for evaluation of quality management system efficiency while applying experts’ appraisal by points – ТК РБ 4.2-МР-16–2002 which has a number of disadvantages and which is complicated for being used at enterprises. A methodology for evaluation of quality management system efficiency has been developed on the basis of a qualimetric approach to the formation of an experts’ group, working out of estimation scales and their realization, ТК РБ 4.2-МР-16–2002 propositions. The methodology has been put to evaluation test at the enterprise which is dealing with manufacturing and repair of railway products and can be applied at mechanical engineering and other enterprises

  5. Scatterscore method to evaluate changes in water quality

    Energy Technology Data Exchange (ETDEWEB)

    Kim, A.G.; Cardone, C. [U.S. Department of Energy, Pittsburgh, PA (United States). National Energy Technology Laboratory

    2001-07-01

    In Pennsylvania, water quality is monitored at mine sites remediated with coal combustion by-products (CCB), on a quarterly or annual basis. This produces extensive data files including values for 32 parameters that are difficult to evaluate for overall changes in water quality. Tracking a few major parameters, such as pH, Fe or acidity, produces a complex data set that excludes other significant values. A quantitative measure of estimating if the overall change in water quality is an improvement, no significant change or deterioration should take into account all measured quantities. To assess the change in water quality at a site, a scatterscore evaluation was developed. In this reconnaissance method, a score is calculated based on the differences between up gradient (control) versus down gradient (treatment) water quality data sets. All parameters measured over a period of time at two sampling points are compared. This evaluation method indicated that there was slight to moderate improvement in water quality at 30% of the CCB remediated sites and slight deterioration at 25% of the sites. The scatterscore at the remaining sites indicated random change in the measured parameters. 19 refs., 7 figs., 5 tabs.

  6. Evaluating Frequency Quality of Nordic System using PMU data

    DEFF Research Database (Denmark)

    Xu, Zhao; Østergaard, Jacob; Togeby, Mikael

    2008-01-01

    quality and its correlation with time. The results show that the frequency quality of the Nordic power system is not satisfactory according to the suggested requirements. The electricity market operation is found to be one of the major reasons behind. Based on the results, discussion of frequency control......This paper focuses on analysing frequency quality of Nordic power system using measurements from Phasor Measurement Units (PMU). The PMU data of one year long period is used which has very high time resolution (20 ms per sample) and is able to provide detailed information in evaluating frequency...

  7. Integrating microbial physiology and enzyme traits in the quality model

    Science.gov (United States)

    Sainte-Marie, Julien; Barrandon, Matthieu; Martin, Francis; Saint-André, Laurent; Derrien, Delphine

    2017-04-01

    Microbe activity plays an undisputable role in soil carbon storage and there have been many calls to integrate microbial ecology in soil carbon (C) models. With regard to this challenge, a few trait-based microbial models of C dynamics have emerged during the past decade. They parameterize specific traits related to decomposer physiology (substrate use efficiency, growth and mortality rates...) and enzyme properties (enzyme production rate, catalytic properties of enzymes…). But these models are built on the premise that organic matter (OM) can be represented as one single entity or are divided into a few pools, while organic matter exists as a continuum of many different compounds spanning from intact plant molecules to highly oxidised microbial metabolites. In addition, a given molecule may also exist in different forms, depending on its stage of polymerization or on its interactions with other organic compounds or mineral phases of the soil. Here we develop a general theoretical model relating the evolution of soil organic matter, as a continuum of progressively decomposing compounds, with decomposer activity and enzyme traits. The model is based on the notion of quality developed by Agren and Bosatta (1998), which is a measure of molecule accessibility to degradation. The model integrates three major processes: OM depolymerisation by enzyme action, OM assimilation and OM biotransformation. For any enzyme, the model reports the quality range where this enzyme selectively operates and how the initial quality distribution of the OM subset evolves into another distribution of qualities under the enzyme action. The model also defines the quality range where the OM can be uptaken and assimilated by microbes. It finally describes how the quality of the assimilated molecules is transformed into another quality distribution, corresponding to the decomposer metabolites signature. Upon decomposer death, these metabolites return to the substrate. We explore here the how

  8. QUALITY EVALUATION OF CHINESE CAPITAL CITIES' LIVING SPACE IN 2001

    Institute of Scientific and Technical Information of China (English)

    WANG Xing-zhong; SUN Feng-hua; GUO Liu-jian; HE Xiao-dong

    2005-01-01

    The quality dimension of the urban living space was addressed much earlier abroad; nevertheless, it has not been studied in the Chinese academia up to date, as evidenced by the limited research literature. Through recourse to Rich BOYER's nine-factor theory, this study attempted to evaluate and rank 31 target cities, by using the data from the China Statistical Yearbook 2002. Our research results show that the quality of a city's living space is in positive correlation with its size, and that there will be changing demands for the quality of the urban living space as a result of future social, economic, sci-tech, cultural and educational developments, combined with the improvement of the overall quality of urban residents. Previous research was focused on the quality of food, housing, education, transportation and entertainment. However, with the development of the knowledge-economy, such factors as information accessibility, green environment, and air quality, will be major considerations in the quality evaluation of the urban living space.

  9. A new method to evaluate imaging quality of CCD cameras

    Institute of Scientific and Technical Information of China (English)

    LI Wen-juan; DU Hai-hui; DAI Jing-min; CHEN Ying-hang

    2005-01-01

    In order to evaluate the imaging quality of CCD cameras fully and rapidly,the minimum resolvable contrast (MRC) is presented in this paper and the system of measuring MRC is constructed as well,in which two integrating spheres are proposed to illuminate two sides of the target respectively.The variable contrast can be obtained by regulating the luminance of integrating spheres. Experimental results indicate that the error of measuring luminance is within ±0.3 cd/m2,MRC rises with the increase of the spatial frequency.The experimental results show that the method proposed is an effective approach to evaluate the imaging quality of CCD cameras.

  10. Measuring service life and evaluating the quality of solid tires

    Directory of Open Access Journals (Sweden)

    Charoenyut Dechwayukul

    2010-08-01

    Full Text Available The objective of this research is to propose procedures for measuring service life and evaluating the quality of locallymade and used solid tires in Thailand. The solid tires were stressed and rotated until blowout on a drum-like test apparatuswhich is designed, constructed by the authors and equipped with laboratory instrumentation. Solid tires from five differentmanufacturers were selected for testing. We measured service life, length of time to tire failure, at three different loadingamplitudes and three different speeds on the testing drum. The service life of all specimens was studied and compared todetermine the possibility of using service life to evaluate the quality of a solid tire.

  11. CONTACTLESS METHODS FOR QUALITY EVALUATION OF DAIRY PRODUCTS

    Directory of Open Access Journals (Sweden)

    Zlatin Zlatev

    2016-07-01

    Full Text Available The aim of the report is to present a comparative analysis of the methods and technical means for assessment of the quality and safety of dairy products, particularly yellow cheese by spectral characteristics. As a result of the analysis are established appropriate methods for representation of the spectral characteristics and classification of the researched product. In the development are shown and evaluated the accuracy and performance of the results of studies conducted in the laboratory of the Trakia University, faculty of Technics and technologies with the discussed methods for evaluation the quality of the food product.

  12. Characterization of groundwater quality using water evaluation indices, multivariate statistics and geostatistics in central Bangladesh

    Directory of Open Access Journals (Sweden)

    Md. Bodrud-Doza

    2016-04-01

    Full Text Available This study investigates the groundwater quality in the Faridpur district of central Bangladesh based on preselected 60 sample points. Water evaluation indices and a number of statistical approaches such as multivariate statistics and geostatistics are applied to characterize water quality, which is a major factor for controlling the groundwater quality in term of drinking purposes. The study reveal that EC, TDS, Ca2+, total As and Fe values of groundwater samples exceeded Bangladesh and international standards. Ground water quality index (GWQI exhibited that about 47% of the samples were belonging to good quality water for drinking purposes. The heavy metal pollution index (HPI, degree of contamination (Cd, heavy metal evaluation index (HEI reveal that most of the samples belong to low level of pollution. However, Cd provide better alternative than other indices. Principle component analysis (PCA suggests that groundwater quality is mainly related to geogenic (rock–water interaction and anthropogenic source (agrogenic and domestic sewage in the study area. Subsequently, the findings of cluster analysis (CA and correlation matrix (CM are also consistent with the PCA results. The spatial distributions of groundwater quality parameters are determined by geostatistical modeling. The exponential semivariagram model is validated as the best fitted models for most of the indices values. It is expected that outcomes of the study will provide insights for decision makers taking proper measures for groundwater quality management in central Bangladesh.

  13. A semi-automated tool for treatment plan-quality evaluation and clinical trial quality assurance.

    Science.gov (United States)

    Wang, Jiazhou; Chen, Wenzhou; Studenski, Matthew; Cui, Yunfeng; Lee, Andrew J; Xiao, Ying

    2013-07-07

    The goal of this work is to develop a plan-quality evaluation program for clinical routine and multi-institutional clinical trials so that the overall evaluation efficiency is improved. In multi-institutional clinical trials evaluating the plan quality is a time-consuming and labor-intensive process. In this note, we present a semi-automated plan-quality evaluation program which combines MIMVista, Java/MATLAB, and extensible markup language (XML). More specifically, MIMVista is used for data visualization; Java and its powerful function library are implemented for calculating dosimetry parameters; and to improve the clarity of the index definitions, XML is applied. The accuracy and the efficiency of the program were evaluated by comparing the results of the program with the manually recorded results in two RTOG trials. A slight difference of about 0.2% in volume or 0.6 Gy in dose between the semi-automated program and manual recording was observed. According to the criteria of indices, there are minimal differences between the two methods. The evaluation time is reduced from 10-20 min to 2 min by applying the semi-automated plan-quality evaluation program.

  14. Geographical Information System Techniques for Evaluation of Groundwater Quality

    Directory of Open Access Journals (Sweden)

    Shahram Ashraf

    2011-01-01

    Full Text Available Problem statement: The present paper tries to assess groundwater suitability for irrigation purpose in Damghan plain (5400 ha. Approach: Twenty four water samples were collected from the active wells. Parameters such as Electrical Conductivity (EC, pH, Total Dissolved Solids (TDS, were recorded in the field and major anions and cations (Ca2+, Mg2+, K+, Na+, CO32-, HCO3-, Cl-, SO42- and NO3- were analyzed in the laboratory. The data of water wells were imported into the GIS software and the different water quality maps were produced using point data. Then Suitability index of groundwater quality determined by overlaying of water quality maps. Results: Suitability index values revealed that the ground water in Amin Abad, Abdi, Abd Abad, Nasr Abad and parts of Shams Abad villages of study area had "Suitable" quality with the suitability index range between 75-100 and therefore can be used for irrigation usage. Suitability index of the groundwater in Hasnie, Gani Abad and parts of Shams Abad villages were "Moderate" quality with the range between 35-70 and Abas Abad, Abir Abad and Shaman villages had "unsuitable" quality and cannot be used for irrigation purposes. In respect of all evaluating criteria, villages of study areas that had "Suitable" and Moderate quality could safely be used for longterm irrigation purposes. Conclusion: The present study demonstrated high efficiency for GIS to analyze complex spatial data and groundwater quality suitability.

  15. Combining catchment and instream modelling to assess physical habitat quality

    DEFF Research Database (Denmark)

    Olsen, Martin

    observations showed that juvenile trout in stream Ledreborg prefered lower water depths and water velocities than juvenile trout in larger Danish streams, e.g. River Gudenå. Repeated electrofishing in the stream revealed big differences in temporal and spatial distribution of the trouts on the four reaches...... and abundance of trout on the reaches. • Comparison of reference condition minimum run-off and WUA curves suggested that summer low flow were not a limiting factor on the physical habitat quality for juvenile trout under reference conditions. • Habitat hydraulic modelling suggested that stream Ledreborg had...... the best potential physical habitat quality for trout fry and juvenile trout and the lowest potential physical habitat quality for adult trout. This finding supports previous evaluations of the stream as a trout habitat, concluding that stream Ledreborg has very few suitable habitats for adult trout...

  16. Ginger--chemistry, technology, and quality evaluation: part 1.

    Science.gov (United States)

    Govindarajan, V S

    1982-01-01

    Ginger is used in more ways than any other spice. This monograph, published in two parts, comprehensively reviews production, trade, processing, chemistry, and evaluation of quality. Botany, world varieties, agronomy, crop improvement and potential are reviewed briefly with emphasis on the yield of functional components. Processing for the market, international trade patterns, and factors influencing them are discussed. Derived products such as ginger powder, syruped ginger, volatile oil, and oleoresin are discussed in greater detail. The increasing world demand for quality products of added value such as the oleoresin and volatile oil show prospects for their production in the growing countries. The chemistry of the components which contribute aroma and pungency that characterize ginger is critically reviewed. The second part deals with evaluation of quality. The physico-chemical parameters prescribed as a measure of quality for ginger and its products in the existing standards can assure only hygienic quality and purity, and possibly the source, when new parameters such as GC-fingerprints are included. The importance of sensorily evaluating flavor quality is emphasized to understand the variation in flavor quality required by the industrial and retail markets. Related areas, such as problems in sensory evaluation of intense flavored substances, objective flavor profile analysis, and correlation of instrumental and sensory data, are discussed and our recent work in this area is summarized. Areas where more research are needed are indicated. Other areas briefly discussed are functional, physiological, and toxicological properties in use of ginger; biosynthetic aspects of the components stimulating flavor; and structure and pungency and chemistry of spices from allied species and genera. A comprehensive bibliography is provided to aid in further study and research.

  17. Ginger-chemistry, technology, and quality evaluation: part 2.

    Science.gov (United States)

    Govindarajan, V S

    1982-01-01

    Ginger is used in more ways than any other spice. This monograph, published in two parts, comprehensively reviews production, trade, processing, chemistry, and evaluation of quality. Botany, world varieties, agronomy, crop improvement, and potential are reviewed briefly with emphasis on the yield of functional components. Processing for the market, international trade patterns and factors influencing them are discussed. Derived products such as ginger powder, syruped ginger, volatile oil, and oleoresin are discussed in greater detail. The increasing world demand for quality products of added value such as the oleoresin and volatile oil show the prospects for their production in the growing countries. The chemistry of the components which contribute aroma and pungency that characterize ginger is critically reviewed. The second part deals with evaluation of quality. The physicochemical parameters prescribed as a measure of quality for ginger and its products in the existing standards, can assure only hygienic quality and purity, and possibly the source, when new parameters such as GC-finger prints are included. The importance of sensorily evaluating flavor quality is emphasized to understand the variation in flavor quality required by the industrial and retail markets. Related areas, such as problems in sensory evaluation of intense flavored substances, objective flavor profile analysis, correlation of instrumental and sensory data are discussed, and our recent work in this area is summarized. Areas where more research is needed are indicated. Other areas briefly discussed are functional, physiological, and toxicological properties in use of ginger; biosynthetic aspects of components stimulating flavor; structure and pungency and chemistry of spices from allied species and genera. A comprehensive bibliography is provided to aid in further study and research.

  18. [A quality evaluation tableau for health institutions: an educational tool].

    Science.gov (United States)

    Moll, Marie Christine; Decavel, Frédérique; Merlet, Christine

    2009-09-01

    For a few years, health institutions have had to comply with the certification and the need to establish the new governance. Thanks to the accreditation version 2 (obtained in 2005), the elaboration of the hospital project (adopted in October, 2006) and the organization in poles since 2006, the quality oriented management became a priority axis at the University Hospital of Angers. The strategic adaptation to quality requirements leads to develop the hospital management, more especially at the level of the clinical, medico technical and administrative poles. The elements of the hospital project including the part about the quality, risk and evaluation aim at being adapted by every pole according to the level of its project. This adaptation which is imposed to each pole manager requires a practical and educational accompaniment allowing at the same time to realize a diagnosis of the progress of the quality approach, a measure of the impact of the global impregnation within the institution and a comparison between pole. A eight axis dashboard with criteria and a user guide were developed from certification ISO 9001, the EFQM manual and the certification manual version 2 of the Healthcare High Authorities. The criteria are transcribed in an EXCEL grid ready to use. Succeeding in estimating your own quality system means that you demonstrate the maturity of the quality approach. The results of this evaluation confirmed those of the certification. The dashboard is a management structuring tool at the service of the multidisciplinary team. Two considerations emerge from these results: First of all, for the hospital top management, the axes to be improved emerge as a priority to determine and target the next annual action plans. The results also allow to support the auto evaluation for the certification version 2010 planned in January of the same year. It is a pragmatic tool which allows auto evaluation and comparison to estimate the pole performances. It is a strategic

  19. Quality Evaluation and Its Application to Surface Water Ecosystem Based on Maximum Flux Principle

    Institute of Scientific and Technical Information of China (English)

    刘年磊; 毛国柱; 赵林

    2010-01-01

    Based on the maximum flux principle(MFP),a water quality evaluation model for surface water ecosystem is presented by using self-organization map(SOM) neural network simulation algorithm from the aspect of systematic structural evolution.This evaluation model is applied to the case of surface water ecosystem in Xindu District of Chengdu City in China.The values reflecting the water quality of five cross-sections of the system at different developing stages are obtained,with stable values of 1.438,2.952,1.86...

  20. Research on the evaluation of e-service quality in libraries

    Institute of Scientific and Technical Information of China (English)

    QI; Xianghua; YANG; Jingjing

    2010-01-01

    Based on the research of theories and practices related to quality evaluation of electronic services(e-services)from both home and abroad and through multiple rounds of surveys and analyses,this article proposed an evaluation indicator system for Chinese libraries.A survey was carried out on the e-services of Shanxi Provincial Library by using SERVQUAL model.Based on the survey data,the article evaluated and analyzed the quality of Shanxi Provincial Library’s e-services by means of quadrant analysis,and put forward solutions and suggestions accordingly.

  1. Modeling for Aroma Quality Evaluation of Anxi Tieguanyin Tea Based on Principal Component Analysis%基于主成分分析法的安溪铁观音香气质量评价模型的构建

    Institute of Scientific and Technical Information of China (English)

    张雪波; 肖世青; 杜先锋; 朱文伟

    2012-01-01

    从4个季节(每个季节两个等级)共8个安溪铁观音茶样中提取并分离出74种香气组分。通过主成分分析法鉴定出安溪铁观音中的主要特征香气成分,它们分别是:橙花叔醇、法呢烯、吲哚、苯乙醇、反-2-己烯醛、壬醛、苯乙醛、亚油酸甲酯、亚麻酸甲酯、棕榈酸甲酯、顺-己酸-3-己烯酯、苯甲酸-3-己烯-1-醇酯、辛酸-2-苯乙酯、5-正丁基-δ-戊内酯、顺式茉莉酮、法尼基丙酮、棕榈酸、香叶基芳樟醇异构体。利用主成分分析法,基于综合评价函数F=β1F1+β2F2+…+βkFk构建了安溪铁观音香气质量的评价模型,以不同特征值的方差贡献率βi(i=1,2,…,k)为加权系数,利用所建立的模型计算各样本得分,然后进行排序评价各个茶样的香气质量。通过感官评价法进一步对模型评价结果进行了检验,结果显示两种方法具有很好的一致性,表明所建立的方法是可行的。%A total of 74 volatile compounds were extracted and separated from 8 Anxi Tieguanyin tea samples(harvested at four different seasons;two degrees each season).The major aromatic compounds in Anxi Tieguanyin tea were nerolidol,farnesene,indole,phenylethyl alcohol,(E)-2-hexenal,nonanal,benzeneacetaldehyde,methyl linoleate,methyl linolenate,methyl palmitate,(Z)-3-hexenyl hexanoate,3-hexen-1-ol benzoate,octanoic acid,2-phenylethyl ester,delta-nonalactone,cis-jasmone,farnesylacetone,palmitic acid,and geranyl linalool isomer as demonstrated by principal component analysis(PCA).A PCA model for the aroma quality evaluation of Anxi Tieguanyin tea was constructed using the variance contribution rates of various eigenvalues βi(i = 1,2,……,k) as weight coefficients based on the comprehensive evaluation function: F = β1F1 + β2F2 +…+ βkFk and used to calculate aroma quality score for each tea sample for aroma quality evaluation.The evaluation results were in good agreement with those obtained from

  2. Quality Diagnosis of BtoC Website Based on Fuzzy Comprehensive Evaluation

    Institute of Scientific and Technical Information of China (English)

    CHEN Mei-mei; TANG Bing-yong; CHENG Sheng; WANG Chen; ZHOU Li

    2006-01-01

    A hi-quality website is crucial to a company for a successful e-business. The technique maintainers are always faced with the problem how to locate the prime factors which affect the quality of the websites. In view of the complexity and fuzziness of BtoC website, a quality diagnosis method based on the multi-attribute and multi-layer fuzzy comprehensive evaluation model including all the quality factors is proposed. A simple example of diagnosis on a famous domestic BtoC websites shows the specific steps of this method and proves its validity. The process of quality evaluation and diagnosis system is illustrated and the computer program of diagnosis is given.

  3. An Evaluation of Output Quality of Machine Translation (Padideh Software vs. Google Translate

    Directory of Open Access Journals (Sweden)

    Haniyeh Sadeghi Azer

    2015-08-01

    Full Text Available This study aims to evaluate the translation quality of two machine translation systems in translating six different text-types, from English to Persian. The evaluation was based on criteria proposed by Van Slype (1979. The proposed model for evaluation is a black-box type, comparative and adequacy-oriented evaluation. To conduct the evaluation, a questionnaire was assigned to end-users to evaluate the outputs to examine and determine, if the machine-generated translations are intelligible and acceptable from their point of view and which one of the machine-generated translations produced by Padideh software and Google Translate is more acceptable and useful from the end-users point of view. The findings indicate that, the machine-generated translations are intelligible and acceptable in translating certain text-types, for end-users and Google Translate is more acceptable from end-users point of view. Keywords: Machine Translation, Machine Translation Evaluation, Translation Quality

  4. Evaluation of outpatient service quality in Eastern Saudi Arabia

    Science.gov (United States)

    Fraihi, Khalid J. Al; FAMCO, Dip; FAMCO, Fellow; Latif, Shahid A.

    2016-01-01

    Objectives: To investigate perceptions and expectations of patients regarding hospital outpatient services by using a service quality gap model and factors influencing such gaps. Methods: In this cross-sectional descriptive study conducted between October and November 2014 in the outpatient waiting areas of a hospital in the Eastern Province of Saudi Arabia, a sample of 306 patients was selected by convenience sampling technique. The data was collected through an Arabic version of the service quality (SERVQUAL) questionnaire consisting of 2 parts: patients’ demographic characteristics, and 22 items scales of patients’ expectations and perceptions of SERVQUAL. The data was analyzed by confirmatory factor analysis, independent, and paired t samples tests and one way analysis of variance test. Results: The results showed that the proposed model for service quality dimensions had a good fit by satisfying the recommended values. The patients’ expectations exceeded perceptions in all service quality dimensions indicating statistically significant service quality gaps (t=26.3, p<0.000). Findings revealed that the empathy dimension contributed most patients’ expectations (4.7 ± 0.5) and perceptions (3.7 ± 0.8) scores, and responsiveness contributed least to expectations (4.5 ± 0.6) and perceptions (3.2 ± 0.8) scores. Prompt services showed highest service quality gap, while observation of privacy showed the smallest service quality gap in the statements. The study showed a significant association between gender, age, education, multiple visits, and service quality dimensions. Conclusion: The proposed model is valid and reliable and significant service quality gaps of all 5 dimensions need to be prioritized and addressed by focused improvement efforts of hospital management. PMID:27052285

  5. Evaluation of quality control strategies in Scutellaria herbal medicines.

    Science.gov (United States)

    Boyle, Susanne P; Doolan, Paul J; Andrews, Clare E; Reid, Raymond G

    2011-04-05

    The statutory regulation of herbal medicines is under review within the United Kingdom (UK) and by 2011 all herbal medicines will require either a Product Licence or a Traditional Herbal Registration. The species Scutellaria baicalensis has been shown to possess anti-inflammatory, anti-viral and anti-tumor properties and is one of the most widely used Chinese herbal extracts in Eastern and Western medicines. The bioactivity of this herbal medicine is due to the radical scavenging activities of the flavone components of which there are more than 60. This research has characterised 5 key flavones in 18 extracts of Scutellaria using a combination of HPLC with DAD and MS detection. Employing an internal standard approach, the validated HPLC method afforded good sensitivity and excellent assay precision. Assays for the ferric reducing antioxidant power (FRAP) and total phenol determinations enabled determination of the antioxidant coefficient (PAC) of each Scutellaria extract. The potential usefulness of employing multivariate statistical analysis using a combination of the key parameters collected namely, FRAP activity, total phenol content, levels of 5 flavone biomarkers and the PAC as a means of quality evaluation of the Scutellaria herbal extracts was investigated. The PAC value was predicted by soft independent modelling of class analogy (SIMCA) as being the most discriminatory parameter and applying this ranking the herbal extracts were grouped into 3 clusters. The second most influential parameter in determining the clustering of the samples was the level of baicalin in each extract. It is proposed that the PAC value alone or in combination with a chromatographic fingerprint of key biomarkers [e.g. baicalin or (baicalin+baicalein)] may be useful indicators to adopt for the quality control of S. baicalensis.

  6. Evaluating website quality: Five studies on user-focused evaluation methods

    NARCIS (Netherlands)

    Elling, S.K.

    2012-01-01

    The benefits of evaluating websites among potential users are widely acknowledged. There are several methods that can be used to evaluate the websites’ quality from a users’ perspective. In current practice, many evaluations are executed with inadequate methods that lack research-based validation. T

  7. Subjective Values of Quality of Life Dimensions in Elderly People. A SEM Preference Model Approach

    Science.gov (United States)

    Elosua, Paula

    2011-01-01

    This article proposes a Thurstonian model in the framework of Structural Equation Modelling (SEM) to assess preferences among quality of life dimensions for the elderly. Data were gathered by a paired comparison design in a sample comprised of 323 people aged from 65 to 94 years old. Five dimensions of quality of life were evaluated: Health,…

  8. Modeling air quality over China: Results from the Panda project

    Science.gov (United States)

    Katinka Petersen, Anna; Bouarar, Idir; Brasseur, Guy; Granier, Claire; Xie, Ying; Wang, Lili; Wang, Xuemei

    2015-04-01

    China faces strong air pollution problems related to rapid economic development in the past decade and increasing demand for energy. Air quality monitoring stations often report high levels of particle matter and ozone all over the country. Knowing its long-term health impacts, air pollution became then a pressing problem not only in China but also in other Asian countries. The PANDA project is a result of cooperation between scientists from Europe and China who joined their efforts for a better understanding of the processes controlling air pollution in China, improve methods for monitoring air quality and elaborate indicators in support of European and Chinese policies. A modeling system of air pollution is being setup within the PANDA project and include advanced global (MACC, EMEP) and regional (WRF-Chem, EMEP) meteorological and chemical models to analyze and monitor air quality in China. The poster describes the accomplishments obtained within the first year of the project. Model simulations for January and July 2010 are evaluated with satellite measurements (SCIAMACHY NO2 and MOPITT CO) and in-situ data (O3, CO, NOx, PM10 and PM2.5) observed at several surface stations in China. Using the WRF-Chem model, we investigate the sensitivity of the model performance to emissions (MACCity, HTAPv2), horizontal resolution (60km, 20km) and choice of initial and boundary conditions.

  9. Implementation of chemometrics in quality evaluation of food and beverages.

    Science.gov (United States)

    Efenberger-Szmechtyk, Magdalena; Nowak, Agnieszka; Kregiel, Dorota

    2017-01-27

    Conventional methods for food quality evaluation based on chemical or microbiological analysis followed by traditional univariate statistics such as ANOVA are considered insufficient for some purposes. More sophisticated instrumental methods including spectroscopy and chromatography, in combination with multivariate analysis - chemometrics, can be used to determine food authenticity, identify adulterations or mislabeling and determine food safety. The purpose of this review is to present the current state of knowledge on the use of chemometric tools for evaluating quality of food products of animal and plant origin and beverages. The article describes applications of several multivariate techniques in food and beverages research, showing their showing their role in adulteration detection, authentication, quality control, differentiation of samples and comparing their classification and prediction ability.

  10. Politics and Quality in Administrator Evaluation. AIR Forum 1981 Paper.

    Science.gov (United States)

    Reid, John Y.

    Issues concerning administrator evaluation at the University of Toledo, including internal political realities and the need to incorporate qualitative dimensions, were evaluated. The overall framework for the analysis of administrator evaluation at Toledo was based on the political model of J. Victor Baldridge (1971), complemented by Bacharach and…

  11. Evaluation of perception of quality of life of disabled athletes

    Directory of Open Access Journals (Sweden)

    Bolach Bartosz

    2014-01-01

    Full Text Available Purpose: To evaluate the perception of quality of life for athletes - disabled, participating in individual and team Paralympic sports. Material: The study involved 32 athletes sports club "Start" in Wroclaw in 2013, engaged in individual sports: swimming, weightlifting, powerlifting (powerlifting and command: wheelchair basketball and volleyball in a sitting position. Results: Studies have proven that sports people with physical disabilities have a positive effect on the quality of their lives. Conclusions: 1. Study aspects of perception of quality of life is a complex issue, but deserves proper attention and appropriate force to study it. 2. Athletes - Disabled involved both individual and team sports, the perception of quality of life is average.

  12. Evaluating Quality in Educational Spaces: OECD/CELE Pilot Project

    Science.gov (United States)

    von Ahlefeld, Hannah

    2009-01-01

    CELE's International Pilot Project on Evaluating Quality in Educational Spaces aims to assist education authorities, schools and others to maximise the use of and investment in learning environments. This article provides an update on the pilot project, which is currently being implemented in Brazil, Mexico, New Zealand, Portugal and the United…

  13. Evaluating Service Quality in Universities: A Service Department Perspective

    Science.gov (United States)

    Smith, Gareth; Smith, Alison; Clarke, Alison

    2007-01-01

    Purpose: The purpose of the study is to report on an in-depth exploration of service quality in an Information Technology service department in a Higher Education Institute (HEI) and to evaluate the instrument used. Design/methodology/approach: The study surveys customers using the SERVQUAL instrument, which is one of the most widely used and…

  14. Developing an Evaluation Framework of Quality Indicators for Learning Analytics

    NARCIS (Netherlands)

    Scheffel, Maren; Drachsler, Hendrik; Specht, Marcus

    2017-01-01

    This paper presents results from the continuous process of developing an evaluation framework of quality indicators for learning analytics (LA). Building on a previous study, a group concept mapping approach that uses multidimensional scaling and hierarchical clustering, the study presented here

  15. Evaluation of nutritional value and protein quality of raw and ...

    African Journals Online (AJOL)

    Evaluation of nutritional value and protein quality of raw and differentially ... as a source of protein in the diets of both human beings and animals, but their production is ... under-utilized food legume, sword bean (SB) (Canavalia gladiata (Jacq.) ...

  16. Patients' Evaluation of the Quality of Diabetes Care (PEQD)

    DEFF Research Database (Denmark)

    Pouwer, F; Snoek, Frank J

    2002-01-01

    analysis comprised principal component analyses, Cronbach's alpha, t tests, Pearson's correlation, and linear regression analyses. RESULTS: Results in the literature were used to develop the 14 items of the Patients' Evaluation of the Quality of Diabetes Care (PEQD) scale, assessing the most important...

  17. Developing an Evaluation Framework of Quality Indicators for Learning Analytics

    NARCIS (Netherlands)

    Scheffel, Maren; Drachsler, Hendrik; Specht, Marcus

    2017-01-01

    This paper presents results from the continuous process of developing an evaluation framework of quality indicators for learning analytics (LA). Building on a previous study, a group concept mapping approach that uses multidimensional scaling and hierarchical clustering, the study presented here app

  18. [Building a quality evaluation system for the nursing triage process].

    Science.gov (United States)

    Gadda, Giorgio; Destrebecq, Anne; Bollini, Giovanna; Terzoni, Stefano

    2009-01-01

    In literature there are no studies regarding the quality evaluation of the whole triage process; however, since it is necessary to evaluate what really happens everyday in the Emergency Rooms, as well as verifying the daily level of throughput, there is a strong need for an appropriate tool. Measuring the quality of triage means improving the caring process. This article presents a new measurement grid, aimed at realizing a Quality Evaluation of Nursing Care. Currently, the most widespread systems used for the QENC are the Australian Triage Scale, the Canadian triage and Acuity Scale and the Italian Group of Triage Scale. The global/biphasic triage system was used in our study because it seems the most accurate, according to literature. There are several indicators that evaluate many aspects of the triage process; every single indicator has a score. The sum of the scores defines the quality level of the nursing triage process. Our paper discusses the application of this score in a major Milan hospital, based upon a preliminary study.

  19. Student Evaluations of Teaching: Improving Teaching Quality in Higher Education

    Science.gov (United States)

    Hammonds, Frank; Mariano, Gina J.; Ammons, Gracie; Chambers, Sheridan

    2017-01-01

    Student evaluations of teaching (SET) are widely used in both North America and the UK as a means of documenting and improving teaching quality. This article discusses current research on SET administration and interpretation in both regions. Sections of the article are dedicated to various problems associated with SETs and how these may be…

  20. Modelling the Cost and Quality of Preservation Imaging and Archiving

    DEFF Research Database (Denmark)

    Kejser, Ulla Bøgvad

    2009-01-01

    materials held by national cultural heritage institutions in Denmark, a study was undertaken to provide a generic cost model for digital preservation. The outcome of the study is an activity based cost model, which accounts for full economic costs. It is structured around the functional descriptions...... investigated and specifications based on best practice and testing established. Also, the image quality parameters, which influence the long term preservation costs, were identified. In addition, the suitability for preservation of different image file formats and compression algorithms was evaluated...... in the OAIS Reference Model. The cost model divides the OAIS functions in a hierarchy of cost critical activities and measurable components, which are implemented as formulas in a spreadsheet. So far the model has only been completed for activities relating to preservation planning and digital migrations...

  1. Measuring Quality Satisfaction with Servqual Model

    Directory of Open Access Journals (Sweden)

    Dan Păuna

    2012-05-01

    Full Text Available The orientation to customer satisfaction is not a recent phenomenon, many very successfulbusinesspeople from the beginning of the 20th century, such as Sir Henry Royce, a name synonymous withRoll – Royce vehicles, stated the first principle regarding customer satisfaction “Our interest in the Roll-Royce cars does not end at the moment when the owner pays for and takes delivery the car. Our interest in thecar never wanes. Our ambition is that every purchaser of the Rolls - Royce car shall continue to be more thansatisfied (Rolls-Royce.” The following paper tries to deal with the important qualities of the concept for themeasuring of the gap between expected costumer services satisfactions, and perceived services like a routinecustomer feedback process, by means of a relatively new model, the Servqual model.

  2. Performability Modelling Tools, Evaluation Techniques and Applications

    NARCIS (Netherlands)

    Haverkort, Boudewijn R.H.M.

    1990-01-01

    This thesis deals with three aspects of quantitative evaluation of fault-tolerant and distributed computer and communication systems: performability evaluation techniques, performability modelling tools, and performability modelling applications. Performability modelling is a relatively new

  3. Air quality modeling in Warsaw Metropolitan Area

    Directory of Open Access Journals (Sweden)

    Piotr Holnicki

    2013-04-01

    Full Text Available Decision support of air quality management needs to connect several categories of the input data with the analytical process of air pollution dispersion. The aim of the respective model of air pollution is to provide a quantitative assessment of environmental impact of emission sources in a form of spatial/temporal maps of pollutants’ concentration or deposition in the domain. These results are in turn used in assessment of environmental risk and supporting respective planning actions. However, due to the complexity of the forecasting system and the required input data, such environmental prognosis and related decisions contain many potential sources of imprecision and uncertainty. The main sources of uncertainty are commonly considered meteorological and emission input data. This paper addresses the problem of emission uncertainty, and impact of this uncertainty on the forecasted air pollution concentrations and adverse health effects. The computational experiment implemented for Warsaw Metropolitan Area, Poland, encompasses one-year forecast with the year 2005 meteorological dataset. The annual mean concentrations of the main urban pollutants are computed. The impact of uncertainty in emission field inventory is also considered. Uncertainty assessment is based on the Monte Carlo technique where the regional scale CALPUFF model is the main forecasting tool used in air quality analysis.

  4. MODELLING PURCHASING PROCESSES FROM QUALITY ASPECTS

    Directory of Open Access Journals (Sweden)

    Zora Arsovski

    2008-12-01

    Full Text Available Management has a fundamental task to identify and direct primary and specific processes within purchasing function, applying the up-to-date information infrastructure. ISO 9001:2000 defines a process as a number of interrelated or interactive activities transforming inputs and outputs, and the "process approach" as a systematic identification in management processes employed with the organization and particularly - relationships among the processes. To direct a quality management system using process approach, the organization is to determine the map of its general (basic processes. Primary processes are determined on the grounds of their interrelationship and impact on satisfying customers' needs. To make a proper choice of general business processes, it is necessary to determine the entire business flow, beginning with the customer demand up to the delivery of products or service provided. In the next step the process model is to be converted into data model which is essential for implementation of the information system enabling automation, monitoring, measuring, inspection, analysis and improvement of key purchase processes. In this paper are given methodology and some results of investigation of development of IS for purchasing process from aspects of quality.

  5. Total Quality Management (TQM framework for e-learning based on EFQM and Kirkpatrick models

    Directory of Open Access Journals (Sweden)

    Jeanne Schreurs

    2006-07-01

    Full Text Available The EFQM excellence model is a famous quality management tool. We have translated it to be useful in e-learning quality management. EFQM will be used as a framework for self-evaluation. We developed the e-learning stakeholder model. We identified the main criterion and positioned them in the stakeholder model. We present short the Kirkpatrick evaluation model of e-learning. We developed a Kirkpatrick-EFQM self-assessment framework. We propose the limited learner-centric self-assessment framework. A preliminary set of quality criteria have been identified for self-assessment by the learners.

  6. Evaluation and intercomparison of air quality forecasts over Korea during the KORUS-AQ campaign

    Science.gov (United States)

    Lee, Seungun; Park, Rokjin J.; Kim, Soontae; Song, Chul H.; Kim, Cheol-Hee; Woo, Jung-Hun

    2017-04-01

    We evaluate and intercompare ozone and aerosol simulations over Korea during the KORUS-AQ campaign, which was conducted in May-June 2016. Four global and regional air quality models participated in the campaign and provided daily air quality forecasts over Korea to guide aircraft flight paths for detecting air pollution events over Korean peninsula and its nearby oceans. We first evaluate the model performance by comparing simulated and observed hourly surface ozone and PM2.5 concentrations at ground sites in Korea and find that the models successfully capture intermittent air pollution events and reproduce the daily variation of ozone and PM2.5 concentrations. However, significant underestimates of peak ozone concentrations in the afternoon are also found in most models. Among chemical constituents of PM2.5, the models typically overestimate observed nitrate aerosol concentrations and underestimate organic aerosol concentrations, although the observed mass concentrations of PM2.5 are seemingly reproduced by the models. In particular, all models used the same anthropogenic emission inventory (KU-CREATE) for daily air quality forecast, but they show a considerable discrepancy for ozone and aerosols. Compared to individual model results, the ensemble mean of all models shows the best performance with correlation coefficients of 0.73 for ozone and 0.57 for PM2.5. We here investigate contributing factors to the discrepancy, which will serve as a guidance to improve the performance of the air quality forecast.

  7. Smoking, health-related quality of life and economic evaluation.

    Science.gov (United States)

    López-Nicolás, Ángel; Trapero-Bertran, Marta; Muñoz, Celia

    2017-07-26

    The economic evaluation of tobacco control policies requires the adoption of assumptions about the impact of changes in smoking status on health-related quality of life (HRQoL). Estimates for such impacts are necessary for different populations. This paper aims to test whether smoking status has an independent effect on HRQoL over and above the effect derived from the increased likelihood of suffering a tobacco related disease, and to calculate utility values for the Spanish population. Using data from the Spanish Encuesta Nacional de Salud of 2011-12, we estimate statistical models for HRQoL as measured by the EQ-5D-5L instrument as a function of smoking status. We include a comprehensive set of controls for biological, clinical, lifestyle and socioeconomic characteristics. Smoking status has an independent, statistically significant effect on HRQoL. However, the size of the effect is small. The typical smoking related diseases, such as lung cancer, are associated with a reduction in HRQoL about 5 times larger than the difference between current smokers and never smokers. Attributing substantive HRQoL gains to quitting smoking as well as accounting for the concomitant HRQoL gain derived from a smaller likelihood of contracting tobacco related diseases might lead to an overestimation of the benefits of tobacco control policies. Nonetheless, the relatively large drops in HRQoL associated with being diagnosed with diseases that might be causally linked to tobacco suggest that such diseases should not be omitted from the economic evaluations of tobacco control policies.

  8. A feature-enriched completely blind image quality evaluator.

    Science.gov (United States)

    Lin Zhang; Lei Zhang; Bovik, Alan C

    2015-08-01

    Existing blind image quality assessment (BIQA) methods are mostly opinion-aware. They learn regression models from training images with associated human subjective scores to predict the perceptual quality of test images. Such opinion-aware methods, however, require a large amount of training samples with associated human subjective scores and of a variety of distortion types. The BIQA models learned by opinion-aware methods often have weak generalization capability, hereby limiting their usability in practice. By comparison, opinion-unaware methods do not need human subjective scores for training, and thus have greater potential for good generalization capability. Unfortunately, thus far no opinion-unaware BIQA method has shown consistently better quality prediction accuracy than the opinion-aware methods. Here, we aim to develop an opinion-unaware BIQA method that can compete with, and perhaps outperform, the existing opinion-aware methods. By integrating the features of natural image statistics derived from multiple cues, we learn a multivariate Gaussian model of image patches from a collection of pristine natural images. Using the learned multivariate Gaussian model, a Bhattacharyya-like distance is used to measure the quality of each image patch, and then an overall quality score is obtained by average pooling. The proposed BIQA method does not need any distorted sample images nor subjective quality scores for training, yet extensive experiments demonstrate its superior quality-prediction performance to the state-of-the-art opinion-aware BIQA methods. The MATLAB source code of our algorithm is publicly available at www.comp.polyu.edu.hk/~cslzhang/IQA/ILNIQE/ILNIQE.htm.

  9. Quantitative and qualitative research on service quality evaluation system in NGN

    Institute of Scientific and Technical Information of China (English)

    LIU Lu; ZHOU Wen-an; SONG Jun-de

    2009-01-01

    With the development of next generation network (NGN), reasonable service quality evaluation is essential in network management. Based on NGN service characteristics, this article presents a comprehensive service quality evaluation system from two perspectives: quantitative and qualitative. From the quantitative point of view, this article brings forward the normalized service level achievement function (NSLA function) at technical layer. Also, with mean opinion score (MOS) mode, it proposes customer satisfaction assessment methods at customer perception layer. From the qualitative perspective, a hierarchical model is established, which forms mapping relations from the upper customer perception to the lower service quality parameters, and then the influence of different service parameters on customer satisfaction degree can be denoted by the fuzzy analysis hierarchy process (FAHP) algorithm. Quantitative and qualitative evaluations together form a comprehensive solution which is universal, customer-oriented and flexible. Demonstrated by the representative voice service, the proposed system is proved reliable and applicable to service evaluation in NGN.

  10. A Water Quality Monitoring Method Based on Fuzzy Comprehensive Evaluation in Wireless Sensor Networks

    Directory of Open Access Journals (Sweden)

    Jian Shu

    2012-01-01

    Full Text Available A novel water quality monitoring method named WQMMFCE is proposed based on fuzzy comprehensive evaluation model to solve the issue of high energy consumption caused by centralized approach under the background of water quality monitoring. The weights of all factors which are necessary for fuzzy comprehensive evaluation can be obtained firstly by using the binary expert evaluation. The information needs to transmit is decided according to water quality grade which is quantitatively analyzed directly by using fuzzy comprehensive evaluation rather than transmitting large amount of raw data to the monitoring center. Simulation result shows that the method has a great advantage over the centralized one on energy saving and can prolong the lifetime of the network.

  11. Labour Quality Model for Organic Farming Food Chains

    OpenAIRE

    Gassner, B.; Freyer, B.; Leitner, H.

    2008-01-01

    The debate on labour quality in science is controversial as well as in the organic agriculture community. Therefore, we reviewed literature on different labour quality models and definitions, and had key informant interviews on labour quality issues with stakeholders in a regional oriented organic agriculture bread food chain. We developed a labour quality model with nine quality categories and discussed linkages to labour satisfaction, ethical values and IFOAM principles.

  12. 装备质量管理风险评估指标体系与评估模型%Research on Risk Assessment Index System and Evaluation Model for Equipment Quality Management

    Institute of Scientific and Technical Information of China (English)

    李元左; 姚宏林; 郭瑞平

    2013-01-01

    In accordance with the characteristics of equipment quality management ,risk factors have been analyzed .According to the design principles of indexes system ,the index system structure of risk assessment is constructed .And then ,the evaluation model is constructed which based on ana-lytic network process (ANP) and particle swarm optimization (PSO) .The practical case demon-strates satisfactory practicality and effectiveness .%根据装备质量管理的特点,分析了装备质量管理的风险因素,依据指标体系的设计原则,建立了装备质量管理风险评估的指标体系结构,给出了基于网络层次分析法和粒子群优化算法的的装备质量管理风险评估模型,最后给出了实例分析。

  13. Quality quantification model of basic raw materials

    Directory of Open Access Journals (Sweden)

    Š. Vilamová

    2016-07-01

    Full Text Available Basic raw materials belong to the key input sources in the production of pig iron. The properties of basic raw materials can be evaluated using a variety of criteria. The essential ones include the physical and chemical properties. Current competitive pressures, however, force the producers of iron more and more often to include cost and logistic criteria into the decision-making process. In this area, however, they are facing a problem of how to convert a variety of vastly different parameters into one evaluation indicator in order to compare the available raw materials. This article deals with the analysis of a model created to evaluate the basic raw materials, which was designed as part of the research.

  14. A critical study of quality parameters in health care establishment: developing an integrated quality model

    NARCIS (Netherlands)

    Azam, M.; Rahman, Z.; Talib, F.; Singh, K.J.

    2012-01-01

    PURPOSE: The purpose of this article is to identify and critically analyze healthcare establishment (HCE) quality parameters described in the literature. It aims to propose an integrated quality model that includes technical quality and associated supportive quality parameters to achieve optimum

  15. Epilepsy: Quality of life and assessment scale evaluation

    Institute of Scientific and Technical Information of China (English)

    Fayun Hu; Xiaoyi Zou

    2008-01-01

    BACKGROUND: Quality of life (QOL) is an important topic in current international research of epilepsy. In countries other than China, QOL in epilepsy has been well studied, and many assessment scales or QOL of epilepsy have been developed and used in the clinical practice. In China, concern for QOL of epilepsy patients is very recent, and QOL assessment scales, which correspond to China's basic conditions, are still needed.OBJECTIVE: This review aimed to analyze the primary influencing factors and assessment scales of QOL in epilepsy, to investigate the topics of current and future research for QOL of epilepsy patients, and to highlight the importance of QOL for epilepsy patients, according to China's basic conditions. RETRIEVAL STRATEGY: Using the terms "quality of life in epilepsy", we computer-retrieved from the PubMed (http://www.ncbi.nlm.nih.gov/PubMed) database human studies published between January 1998 and April 2007 in the English language. A total of 745 manuscripts were searched, of which 243 were review papers. At the same time, we computer-searched the China National Knowledge Infrastructure with the terms "epilepsy and quality and life" in the Chinese language for studies published between 2002 and 2007. Altogether, 181 Chinese literatures were retrieved, 32 of which were from high-impact journals. LITERATURE EVALUATION: The retrieved manuscripts were initially selected, but 50 were kept for further analysis. The selected manuscripts were as follows: 31 Chinese and/or English studies addressed the influencing factors of QOL for epilepsy patients, as well as assessment scales for QOL in different populations of epilepsy patients, of which 5 were review articles and the remaining 26 were clinical studies; and 19 Chinese and/or English literatures were rejected, because they were not in accordance with the inclusive criteria. DATA SYNTHESIS: QOL for epilepsy patients is an emerging field. At present, "the Liverpool group model for determining QOL in

  16. PARTICULARITIES OF QUALITY EVALUATION IN A SOFTWARE COMPANY

    Directory of Open Access Journals (Sweden)

    Cătălin AFRĂSINEI

    2010-01-01

    Full Text Available Quality management is a management domain very discussed and disputed nowadays and this is the first sign it is a very modern, needed and present concept in theory and practice. Some are seeing it as a solution to prepare things in the way they are needed, and the instrument which might guarantee a proper environment of keeping them in a specified and constant form. The application of quality management is a quality management system that has to be designed, developed and implemented to achieve the aim of quality. The article has the purpose to briefly present what a quality management system should mean in a software company, why it should be periodically evaluated and how it might be done. In the second part it points out the characteristics of the audit as a general evaluation instrument and the main contribution consists on the author’s endeavor to mark out the particularities of an audit process carried out on a software company, considering the fact that particularization increases the changes to easier and earlier succeed with such an activity on a practical basis.

  17. Tools used for evaluation of Brazilian children's quality of life

    Directory of Open Access Journals (Sweden)

    João Gabriel S. Souza

    2014-06-01

    Full Text Available OBJECTIVE:To review the available tools to evaluate children's quality of life validated for Brazilian language and culture.DATA SOURCES: Search of scientific articles in Medline, Lilacs and SciELO databases using the combination of descriptors "quality of life", "child" and "questionnaires" in Portuguese and English.DATA SYNTHESIS: Among the tools designed to assess children's quality of life validated for the Brazilian language and culture, the Auto questionnaire Qualité de Vie Enfant Imagé (AUQEI, the Child Health Questionnaire - Parent Form 50 (CHQ-PF50, the Pediatric Quality of Life Inventory (PedsQL(tmversion 4.0 and the Kidscreen-52 are highlighted. Some tools do not include all range of ages and some lack domains that are currently considered relevant in the context of childhood, such as bullying. Moreover, due to the cultural diversity of Brazil, it may be necessary to adapt some instruments or to validate other tools.CONCLUSIONS: There are validated instruments to evaluate children's quality of life in Brazil. However, the validation or the adaptation of other international tools have to be considered in order to overcome current deficiencies

  18. Breast cancer practice guidelines: evaluation and quality improvement.

    Science.gov (United States)

    Edge, S B

    1997-11-01

    The utility of practice guidelines in breast cancer management remains unproved. This paper examines the scope and goals of published guidelines and their utility in the process of breast cancer treatment quality improvement. Although existing breast cancer guidelines vary widely in scope and intent, they provide a framework for meaningful quality-of-care evaluation. Among the few comprehensive breast cancer guideline programs are those developed by the Ontario Cancer Treatment Practice Guidelines Initiative, the Revlon/UCLA Breast Center, the Association of Community Cancer Centers (ACCC), the Society of Surgical Oncology (SSO), and the National Comprehensive Cancer Network (NCCN). Ultimately, guidelines will prove useful only if they are utilized as part of a comprehensive program to improve quality, cost-effectiveness, and outcomes. To accomplish this, they must include mechanisms for revision and evaluation. The evaluation of guideline utility in quality improvement, particularly in breast cancer care, is a complex long-term process, which should include input from practitioners, institutions, payors, and government.

  19. Multivariate Statistical Analysis Applied in Wine Quality Evaluation

    Directory of Open Access Journals (Sweden)

    Jieling Zou

    2015-08-01

    Full Text Available This study applies multivariate statistical approaches to wine quality evaluation. With 27 red wine samples, four factors were identified out of 12 parameters by principal component analysis, explaining 89.06% of the total variance of data. As iterative weights calculated by the BP neural network revealed little difference from weights determined by information entropy method, the latter was chosen to measure the importance of indicators. Weighted cluster analysis performs well in classifying the sample group further into two sub-clusters. The second cluster of red wine samples, compared with its first, was lighter in color, tasted thinner and had fainter bouquet. Weighted TOPSIS method was used to evaluate the quality of wine in each sub-cluster. With scores obtained, each sub-cluster was divided into three grades. On the whole, the quality of lighter red wine was slightly better than the darker category. This study shows the necessity and usefulness of multivariate statistical techniques in both wine quality evaluation and parameter selection.

  20. A systematic literature review of open source software quality assessment models.

    Science.gov (United States)

    Adewumi, Adewole; Misra, Sanjay; Omoregbe, Nicholas; Crawford, Broderick; Soto, Ricardo

    2016-01-01

    Many open source software (OSS) quality assessment models are proposed and available in the literature. However, there is little or no adoption of these models in practice. In order to guide the formulation of newer models so they can be acceptable by practitioners, there is need for clear discrimination of the existing models based on their specific properties. Based on this, the aim of this study is to perform a systematic literature review to investigate the properties of the existing OSS quality assessment models by classifying them with respect to their quality characteristics, the methodology they use for assessment, and their domain of application so as to guide the formulation and development of newer models. Searches in IEEE Xplore, ACM, Science Direct, Springer and Google Search is performed so as to retrieve all relevant primary studies in this regard. Journal and conference papers between the year 2003 and 2015 were considered since the first known OSS quality model emerged in 2003. A total of 19 OSS quality assessment model papers were selected. To select these models we have developed assessment criteria to evaluate the quality of the existing studies. Quality assessment models are classified into five categories based on the quality characteristics they possess namely: single-attribute, rounded category, community-only attribute, non-community attribute as well as the non-quality in use models. Our study reflects that software selection based on hierarchical structures is found to be the most popular selection method in the existing OSS quality assessment models. Furthermore, we found that majority (47%) of the existing models do not specify any domain of application. In conclusion, our study will be a valuable contribution to the community and helps the quality assessment model developers in formulating newer models and also to the practitioners (software evaluators) in selecting suitable OSS in the midst of alternatives.

  1. Objective Evaluation Method of Steering Comfort Based on Movement Quality Evaluation of Driver Steering Maneuver

    Institute of Scientific and Technical Information of China (English)

    YANG Yiyong; LIU Yahui; WANG Man; JI Run; JI Xuewu

    2014-01-01

    The existing research of steering comfort mainly focuses on the subjective evaluation, aiming at designing and optimizing the steering system. In the development of steering system, especially the evaluation of steering comfort, the objective evaluation methods considered the kinematic characteristics of driver steering maneuver are not proposed, which means that the objective evaluation of steering cannot be conducted with the evaluation of kinematic characteristics of driver in steering maneuver. In order to propose the objective evaluation methods of steering comfort, the evaluation of steering movement quality of driver is developed on the basis of the study of the kinematic characteristics of steering maneuver. First, the steering motion trajectories of the driver in both comfortable and certain extreme uncomfortable operation conditions are detected using the Vicon motion capture system. The operation conditions are under the restrictions of the vertical height and horizontal distance between steering wheel center and the H-point of driver, and the steering resisting torque else. Next, the movement quality evaluation of driver steering maneuver is assessed using twelve kinds of evaluation indices based on the kinematic analyses of the steering motion trajectories to propose an objective evaluation method. Finally, an integrated discomfort index of steering maneuver is proposed on the basis of the regression analysis of subjective evaluation rating and the movement quality evaluation indices, including the Jerk, Discomfort and Joint Torque indices. The test results show that the proposed integrated discomfort index gives a good fitting with the subjective evaluation of discomfort, which means it can be used to evaluate or predict the discomfort level of steering maneuver. This paper proposes an objective evaluation method of steering comfort based on the movement quality evaluation of driver steering maneuver.

  2. Estimating Spoken Dialog System Quality with User Models

    CERN Document Server

    Engelbrecht, Klaus-Peter

    2013-01-01

    Spoken dialog systems have the potential to offer highly intuitive user interfaces, as they allow systems to be controlled using natural language. However, the complexity inherent in natural language dialogs means that careful testing of the system must be carried out from the very beginning of the design process.   This book examines how user models can be used to support such early evaluations in two ways:  by running simulations of dialogs, and by estimating the quality judgments of users. First, a design environment supporting the creation of dialog flows, the simulation of dialogs, and the analysis of the simulated data is proposed.  How the quality of user simulations may be quantified with respect to their suitability for both formative and summative evaluation is then discussed. The remainder of the book is dedicated to the problem of predicting quality judgments of users based on interaction data. New modeling approaches are presented, which process the dialogs as sequences, and which allow knowl...

  3. Systematic evaluation of atmospheric chemistry-transport model CHIMERE

    Science.gov (United States)

    Khvorostyanov, Dmitry; Menut, Laurent; Mailler, Sylvain; Siour, Guillaume; Couvidat, Florian; Bessagnet, Bertrand; Turquety, Solene

    2017-04-01

    Regional-scale atmospheric chemistry-transport models (CTM) are used to develop air quality regulatory measures, to support environmentally sensitive decisions in the industry, and to address variety of scientific questions involving the atmospheric composition. Model performance evaluation with measurement data is critical to understand their limits and the degree of confidence in model results. CHIMERE CTM (http://www.lmd.polytechnique.fr/chimere/) is a French national tool for operational forecast and decision support and is widely used in the international research community in various areas of atmospheric chemistry and physics, climate, and environment (http://www.lmd.polytechnique.fr/chimere/CW-articles.php). This work presents the model evaluation framework applied systematically to the new CHIMERE CTM versions in the course of the continuous model development. The framework uses three of the four CTM evaluation types identified by the Environmental Protection Agency (EPA) and the American Meteorological Society (AMS): operational, diagnostic, and dynamic. It allows to compare the overall model performance in subsequent model versions (operational evaluation), identify specific processes and/or model inputs that could be improved (diagnostic evaluation), and test the model sensitivity to the changes in air quality, such as emission reductions and meteorological events (dynamic evaluation). The observation datasets currently used for the evaluation are: EMEP (surface concentrations), AERONET (optical depths), and WOUDC (ozone sounding profiles). The framework is implemented as an automated processing chain and allows interactive exploration of the results via a web interface.

  4. Assessing the quality of sardine based on biogenic amines using a fuzzy logic model.

    Science.gov (United States)

    Zare, Davood; Ghazali, H M

    2017-04-15

    There is an increasing concern about the quality and quality assessment procedures of seafood. In the present study, a model to assess fish quality based on biogenic amine contents using fuzzy logic model (FLM) is proposed. The fish used was sardine (Sardinella sp.) where the production of eight biogenic amines was monitored over fifteen days of storage at 0, 3 and 10°C. Based on the results, histamine, putrescine and cadaverine were selected as input variables and twelve quality grades were considered for quality of fish as output variables for the FLM. Input data were processed by rules established in the model and were then defuzzified according to defined output variables. Finally, the quality of fish was evaluated using the designed model and Pearson correlation between storage times with quality of fish showed r=0.97, 0.95 and 1 for fish stored at 0, 3 and 10°C, respectively. Copyright © 2016. Published by Elsevier Ltd.

  5. Model validation of channel zapping quality

    Science.gov (United States)

    Kooij, Robert; Nicolai, Floris; Ahmed, Kamal; Brunnström, Kjell

    2009-02-01

    In an earlier paper we showed, that perceived quality of channel zapping is related to the perceived quality of download time of web browsing, as suggested by ITU-T Rec.G.1030. We showed this by performing subjective tests resulting in an excellent fit with a 0.99 correlation. This was what we call a lean forward experiment and gave the rule of thumb result that the zapping time must be less than 0.43 sec to be good ( > 3.5 on the MOS scale). To validate the model we have done new subjective experiments. These experiments included lean backwards zapping i.e. sitting in a sofa with a remote control. The subjects are more forgiving in this case and the requirement could be relaxed to 0.67 sec. We also conducted subjective experiments where the zapping times are varying. We found that the MOS rating decreases if zapping delay times are varying. In our experiments we assumed uniformly distributed delays, where the variance cannot be larger than the mean delay. We found that in order to obtain a MOS rating of at least 3.5, that the maximum allowed variance, and thus also the maximum allowed mean zapping delay, is 0.46 sec.

  6. Evaluation Model for Sentient Cities

    Directory of Open Access Journals (Sweden)

    Mª Florencia Fergnani Brion

    2016-11-01

    Full Text Available In this article we made a research about the Sentient Cities and produced an assessment model to analyse if a city is or could be potentially considered one. It can be used to evaluate the current situation of a city before introducing urban policies based on citizen participation in hybrid environments (physical and digital. To that effect, we've developed evaluation grids with the main elements that form a Sentient City and their measurement values. The Sentient City is a variation of the Smart City, also based on technology progress and innovation, but where the citizens are the principal agent. In this model, governments aim to have a participatory and sustainable system for achieving the Knowledge Society and Collective Intelligence development, as well as the city’s efficiency. Also, they increase communication channels between the Administration and citizens. In this new context, citizens are empowered because they have the opportunity to create a Local Identity and transform their surroundings through open and horizontal initiatives.

  7. Module-based quality system functionality evaluation in production logistics

    Directory of Open Access Journals (Sweden)

    Mahmood Reza Khabbazi

    2016-04-01

    Practical implications: Due to the specification of system as domain design structure, all proposed BPMs, data models, and the actual database prototype are seen referential if not a solution as a practical “to-be” quality business process re-engineering template. Originality/value: this paper sets out to provide an explanatory approach using different practical technique at modeling steps as well as the prototype implementation.

  8. The Quality Evaluation Method of Instrument Flight Procedure Design Scheme Based on Fuzzy Linguistic Assessments

    Directory of Open Access Journals (Sweden)

    Chen Ken

    2013-07-01

    Full Text Available The quality of Instrument Flight Procedure Design Scheme (QIFPDS is directly related to the terminal area airspace capacity, quality, efficiency of air traffic management, and even the safety of aircraft. Hence, the evaluation of QIFPDS has great significance in real life. However, the evaluation of QIFPDS in real work is mainly done by experts through their specific knowledge and experience, which usually leads to a bias result and inevitably contains subjectivity and arbitrary defects. In this paper, a multi-attribute group decision-making method is proposed. This method makes full use of evaluation information; objectively and effectively evaluate QIFPDS. Also in this paper, a mathematical model for this method is introduced and a detailed step to solve this model is listed. At the end of this paper, an example is given to show the effectiveness and feasibility of the method.  

  9. Research on the Quality Evaluation Model of Personal Cloud Storage Service Based on American Consumer Satisfaction Index Model%基于ACSI模型的个人云存储服务质量评价模型研究

    Institute of Scientific and Technical Information of China (English)

    占南; 谢笑; 王文韬

    2014-01-01

    With the wide application of Internet and the popularity of mobile devices, the synchronization, integration, backup and sha-ring of personal information stored in different terminals or social network environment become the focus of the public. How to improve the service quality of personal cloud storage and user's satisfaction and meet user's demand is an urgent problem to be solved. This paper main-ly discusses the main factors that influence user's satisfaction of personal cloud storage, constructs the concept model of user's satisfaction based on the American Customer Satisfaction Index theory, collects user's data through questionnaire survey, and processes the data using the structural equation model and related software, which provides guidance and reference to optimize and improve personal cloud storage service.%随着互联网的广泛应用和移动终端设备的普及,存储在不同终端或社会网络环境中的个人信息如何同步、整合、备份和共享等问题成为人们关注的焦点。如何提升个人云存储服务质量,提高用户满意度,从而更好地满足用户需求是亟待解决的问题。主要是探讨影响个人云存储服务用户满意度的主要因素,以美国顾客满意度指数为理论基础构建个人云存储用户满意度概念模型,通过问卷调查法收集用户数据,利用结构方程模型和相关软件对数据进行分析和处理,为优化和提升个人云存储服务提供指导和借鉴。

  10. [Evaluation of quality of life in elders undergoing hemodialysis].

    Science.gov (United States)

    Takemoto, Angélica Yukari; Okubo, Patrícia; Bedendo, João; Carreira, Lígia

    2011-06-01

    Hemodialysis affects not only physical but psychological and social aspects, with repercussions on personal and family life. Considering the increase in the elderly population in Brazil, this study aims to evaluate the quality of life of elderly patients with chronic renal failure undergoing hemodialysis. This is a quantitative, descriptive exploratory study with elderly patients held in a facility specializing in hemodialysis in Guarapuava, Paraná, Brazil. The data were collected between May and June 2010, through a structured instrument and were submitted to the statistical software Statistica 7.1. Analyzing the domains of the questionnaire the highest score refers to the social domain (70.42) and the lowest, to the physical domain (49.37). Thus, the quality of life of these elderly had to be low, with variations according to the analyzed field. Researches aimed at assessing quality of life are relevant and instrumentalize the daily practice of care.

  11. Evaluation of healthcare quality: a tale of three giants.

    Science.gov (United States)

    Rodkey, Grant V; Itani, Kamal M F

    2009-11-01

    Although the concept of quality of care goes as far back as King Hammurabi in 1700 bc, and many have worked on improving the quality of care in medicine since, 3 individuals receive credit for laying down the foundation for the evaluation and measurement of quality of care in modern surgery: Ernest Amory Codman, Avedis Donabedian, and Shukri Khuri. Donabedian was not a surgeon, but his concepts in systems of care provided the basis for the modern engineering design of surgical care delivery. Without crossing paths, each of those giants built on the contributions of their predecessors. They shared the traits of tremendous determination in the face of many challenges and adversities and a sense of enthusiasm in a belief that resulted in improved and safer care.

  12. Quality of life in Dermatology: tests for its evaluation

    Directory of Open Access Journals (Sweden)

    Catalina Restrepo

    2013-10-01

    Full Text Available Quality of life can be approached from the perspective of different dimensions, among them: economic, religious, spiritual, sociological and health-related. Changes in the perception of health can affect either one of these dimensions. Satisfaction and well-being of patients are becoming ever more important. These considerations have stimulated the development of scales to measure and quantify the quality of life in order to assess the impact on it of chronic diseases and therapeutic interventions, as well as to define the allocation of resources. Presently, many scales are available to evaluate the quality of life in dermatological patients; among them, DLQI and Skindex 29 are the most frequently used. We present a review of the literature concerning this subject.

  13. Community Multi-scale Air Quality (CMAQ) Modeling System for Air Quality Management

    Science.gov (United States)

    CMAQ simultaneously models multiple air pollutants including ozone, particulate matter and a variety of air toxics to help air quality managers determine the best air quality management scenarios for their communities, regions and states.

  14. 以差距模型和价值曲线评价模型分析饭店服务质量——以广州香格里拉大酒店为例%The Gap Model and Value Curve Evaluation Model of Hotel Service Quality:Taking Shangri-La Guangzhou Hotel as an Example

    Institute of Scientific and Technical Information of China (English)

    王丁玲

    2012-01-01

    饭店服务质量的优劣决定着饭店的命运,其不仅要依靠硬件设施,还需要一系列完善的软件服务,同时根据消费者的需求和期望来提供个性化服务.文章以广州香格里拉大酒店为例,运用差距分析模型和价值曲线评价模型来分析其服务质量,对比当今饭店服务质量发展中存在的问题,提出关于如何提高饭店服务质量的建议.%Hotel service quality decides the fate of the hotel, not only depend on the hardware facilities, also need a series of perfect software services, at the same time according to the needs and expectations of customers to provide personalized service. The paper takes Shangri-La Guangzhou Hotel as an example, using gap analysis model and value curve evaluation model to analyze the quality of service, in contrast to the problem existing in the development of the hotel service quality, put forward advice about how to improve the quality of hotel service.

  15. Model for the Assessment of Seawater Environmental Quality Based on Multiobjective Variable Fuzzy Set Theory

    Directory of Open Access Journals (Sweden)

    Lina Ke

    2013-01-01

    Full Text Available With the rapid development of marine economy industry, the activities for exploring and exploiting the marine resources are increasing, and there are more and more marine construction projects, which contribute to the growing trend of eutrophication and frequent occurrence of red tide. Thus, seawater quality has become the topic which the people generally cared about. The seawater quality evaluation could be considered as an analysis process which combined the evaluation indexes with certainty and evaluation factors with uncertainty and its changes. This paper built a model for the assessment of seawater environmental quality based on the multiobjective variable fuzzy set theory (VFEM. The Qingdao marine dumping site in China is taken as an evaluation example. Through the quantitative research of water-quality data from 2004 to 2008, the model is more reliable than other traditional methods, in which uncertainty and ambiguity of the seawater quality evaluation are considered, and trade the stable results as the final results of seawater quality evaluation, which effectively solved the impact of the fuzzy boundary of evaluation standard and monitoring error, is more suitable for evaluation of a multi-index, multilevel, and nonlinear marine environment system and has been proved to be an effective tool for seawater quality evaluation.

  16. Model evaluation and ensemble modelling of surface-level ozone in Europe and North America in the context of AQMEII

    NARCIS (Netherlands)

    Solazzo, E.; Bianconi, R.; Vautard, R.; Appel, K.W.; Moran, M.D.; Hogrefe, C.; Bessagnet, B.; Brandt, J.; Christensen, J.H.; Chemel, C.; Coll, I.; Denier van der Gon, H.A.C.; Ferreira, J.; Forkel, R.; Francis, X.V.; Grell, G.; Grossi, P.; Hansen, A.B.; Jeričević, A.; Kraljević, L.; Miranda, A.I.; Nopmongcol, U.; Pirovano, G.; Prank, M.; Riccio, A.; Sartelet, K.N.; Schaap, M.; Silver, J.D.; Sokhi, R.S.; Vira, J.; Werhahn, J.; Wolke, R.; Yarwood, G.; Zhang, J.; Rao, S.; Galmarini, S.

    2012-01-01

    More than ten state-of-the-art regional air quality models have been applied as part of the Air Quality Model Evaluation International Initiative (AQMEII). These models were run by twenty independent groups in Europe and North America. Standardised modelling outputs over a full year (2006) from each

  17. A planning quality evaluation tool for prostate adaptive IMRT based on machine learning

    Energy Technology Data Exchange (ETDEWEB)

    Zhu Xiaofeng; Ge Yaorong; Li Taoran; Thongphiew, Danthai; Yin Fangfang; Wu, Q Jackie [Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27708 (United States); Department of Biomedical Engineering, Wake Forest University Health Sciences, Medical Center Boulevard, Winston-Salem, North Carolina 27106 (United States); Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27708 (United States); Department of Radiation Oncology, Brody School of Medicine, East Carolina University, Greenville, North Carolina 27834 (United States); Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27708 (United States)

    2011-02-15

    Purpose: To ensure plan quality for adaptive IMRT of the prostate, we developed a quantitative evaluation tool using a machine learning approach. This tool generates dose volume histograms (DVHs) of organs-at-risk (OARs) based on prior plans as a reference, to be compared with the adaptive plan derived from fluence map deformation. Methods: Under the same configuration using seven-field 15 MV photon beams, DVHs of OARs (bladder and rectum) were estimated based on anatomical information of the patient and a model learned from a database of high quality prior plans. In this study, the anatomical information was characterized by the organ volumes and distance-to-target histogram (DTH). The database consists of 198 high quality prostate plans and was validated with 14 cases outside the training pool. Principal component analysis (PCA) was applied to DVHs and DTHs to quantify their salient features. Then, support vector regression (SVR) was implemented to establish the correlation between the features of the DVH and the anatomical information. Results: DVH/DTH curves could be characterized sufficiently just using only two or three truncated principal components, thus, patient anatomical information was quantified with reduced numbers of variables. The evaluation of the model using the test data set demonstrated its accuracy {approx}80% in prediction and effectiveness in improving ART planning quality. Conclusions: An adaptive IMRT plan quality evaluation tool ba