WorldWideScience

Sample records for users comparative analysis

  1. A Comparative Analysis of User Preferences for for Major Internet Based Education Media in China

    Science.gov (United States)

    Wan, Chunyang; Jiang, Yanqing

    2014-01-01

    Internet based education media are developing at an amazing rate and being seen as an upstart that will likely take the place of traditional education means worldwide in the future. This paper presents the results of a comparative analysis on user preferences for four major categories of internet-based media used in China. In this paper, we first…

  2. A comparative analysis of user preference-based and existing knowledge management systems attributes in the aerospace industry

    Science.gov (United States)

    Varghese, Nishad G.

    Knowledge management (KM) exists in various forms throughout organizations. Process documentation, training courses, and experience sharing are examples of KM activities performed daily. The goal of KM systems (KMS) is to provide a tool set which serves to standardize the creation, sharing, and acquisition of business critical information. Existing literature provides numerous examples of targeted evaluations of KMS, focusing on specific system attributes. This research serves to bridge the targeted evaluations with an industry-specific, holistic approach. The user preferences of aerospace employees in engineering and engineering-related fields were compared to profiles of existing aerospace KMS based on three attribute categories: technical features, system administration, and user experience. The results indicated there is a statistically significant difference between aerospace user preferences and existing profiles in the user experience attribute category, but no statistically significant difference in the technical features and system administration attribute categories. Additional analysis indicated in-house developed systems exhibit higher technical features and user experience ratings than commercial-off-the-self (COTS) systems.

  3. Non-Academic Service Quality: Comparative Analysis of Students and Faculty as Users

    Science.gov (United States)

    Sharif, Khurram; Kassim, Norizan Mohd

    2012-01-01

    The research focus was a non-academic service quality assessment within higher education. In particular, non-academic service quality perceptions of faculty and students were evaluated using a service profit chain. This enabled a comparison which helped understanding of non-academic service quality orientation from a key users' perspective. Data…

  4. Comparing Methods for Involving Users in Ideation

    DEFF Research Database (Denmark)

    Nicolajsen, Hanne Westh; Scupola, Ada; Sørensen, Flemming

    2015-01-01

    In this paper we discuss how users may be involved in the ideation phase of innovation. The study compares the use of a blog and three future workshops (students, employees and a mix of the two) in a library. Our study shows that the blog is efficient in giving the users voice whereas the mixed...

  5. Comparative cytomorphometric analysis of oral mucosal cells in normal, tobacco users, oral leukoplakia and oral squamous cell carcinoma

    Directory of Open Access Journals (Sweden)

    Mahadoon Nivia

    2015-01-01

    Conclusion: The cytomorphometric changes observed in samples from oral SCC and oral leukoplakia were consistent with the current diagnostic features. Hence, the semi-automated cytomorphometric analysis of oral mucosal cells can be used as an objective adjunct diagnostic tool in the diagnosis of these lesions.

  6. Comparing Task Models for User Interface Design

    OpenAIRE

    Limbourg, Quentin; Vanderdonckt, Jean

    2003-01-01

    Many task models, task analysis methods, and supporting tools have been introduced in the literature and are widely used in practice. With this comes need to understand their scopes and their differences. This chapter provides a thorough review of selected, significant task models along with their method and supporting tools. For this purpose, a meta-model of each task model is expressed as an Entity-Relationship-Attribute schema (ERA) and discussed. This leads to a comparative analysis of ta...

  7. Emotional Dimensions of User Experience ? A User Psychological Analysis

    OpenAIRE

    Saariluoma, Pertti; Jokinen, Jussi

    2014-01-01

    User psychology is a human–technology interaction research approach that uses psychological concepts, theories, and findings to structure problems of human–technology interaction. As the notion of user experience has become central in human–technology interaction research and in product development, it is necessary to investigate the user psychology of user experience. This analysis of emotional human–technology interaction is based on the psychological theory of basic emotions. Three studies...

  8. Multiple-user neutron activation analysis system

    International Nuclear Information System (INIS)

    The Nuclear Data, Inc., computer ND6600, a state-of-the-art multiple-user laboratory computer system, has been applied to neutron activation analysis (NAA) data acquisition and data processing. The ND6600 NAA software is specifically aimed at solving four problem areas: (1) unification of reactor-parameter and standard comparison techniques in a single analysis, (2) use of multiple comparative standards in a single analysis, (3) improvement of statistical processng, and (4) determination of minimum detectable concentrations. Thirteen NAA program modules were developed. Software modules can be run either manually or automatically in any combination. Operations can be easily tailored to meet the unique needs of each activation analyst. This applications software capability is designed around the ND6600 COMBUS and uses true distributed processing hardware. User operations are implemented through the multiple-user MIDAS software operating system

  9. Trajectory analysis and optimization system (TAOS) user`s manual

    Energy Technology Data Exchange (ETDEWEB)

    Salguero, D.E.

    1995-12-01

    The Trajectory Analysis and Optimization System (TAOS) is software that simulates point--mass trajectories for multiple vehicles. It expands upon the capabilities of the Trajectory Simulation and Analysis program (TAP) developed previously at Sandia National Laboratories. TAOS is designed to be a comprehensive analysis tool capable of analyzing nearly any type of three degree-of-freedom, point-mass trajectory. Trajectories are broken into segments, and within each segment, guidance rules provided by the user control how the trajectory is computed. Parametric optimization provides a powerful method for satisfying mission-planning constraints. Althrough TAOS is not interactive, its input and output files have been designed for ease of use. When compared to TAP, the capability to analyze trajectories for more than one vehicle is the primary enhancement, although numerous other small improvements have been made. This report documents the methods used in TAOS as well as the input and output file formats.

  10. MAUS: MICE Analysis User Software

    CERN Document Server

    CERN. Geneva

    2012-01-01

    The Muon Ionization Cooling Experiment (MICE) has developed the MICE Analysis User Software (MAUS) to simulate and analyse experimental data. It serves as the primary codebase for the experiment, providing for online data quality checks and offline batch simulation and reconstruction. The code is structured in a Map-Reduce framework to allow parallelization whether on a personal machine or in the control room. Various software engineering practices from industry are also used to ensure correct and maintainable physics code, which include unit, functional and integration tests, continuous integration and load testing, code reviews, and distributed version control systems. Lastly, there are various small design decisions like using JSON as the data structure, using SWIG to allow developers to write components in either Python or C++, or using the SCons python-based build system that may be of interest to other experiments.

  11. A COMPARATIVE STUDY OF PERSONALITY CHARACERISITCSOF FACEBOOK USER AND NON-USER.

    Directory of Open Access Journals (Sweden)

    Ahire Rajkumarsing Bhagwan

    2015-01-01

    Full Text Available The present study was undertaken a comparative study of personality characteristics of Facebook users andnon-users (personality characters, introversion and extroversion. The sample consists of 60 youths of Facebookusers and non-users selected from Aurangabad districts. The age range of acebookusers and non-users are 18 to 21. The research tools selected to NeymannKohlstedt Extraversion, Introversion Scalenamely. The proposed statistical procedure is descriptive statistics i .e Mean SD was computed and‘t’ test. Conclusion in this study on the basis of data and discussion of result the hypotheses are tested and verified. The result to be found was there is a significant difference between Facebook user and non-user on their personality characteristics Extroverts and Introverts.

  12. Spreadsheet End-User Behaviour Analysis

    OpenAIRE

    Bishop, Brian; McDaid, Kevin

    2008-01-01

    To aid the development of spreadsheet debugging tools, a knowledge of end-users natural behaviour within the Excel environment would be advantageous. This paper details the design and application of a novel data acquisition tool, which can be used for the unobtrusive recording of end-users mouse, keyboard and Excel specific actions during the debugging of Excel spreadsheets. A debugging experiment was conducted using this data acquisition tool, and based on analysis of end-users performance a...

  13. User analysis of LHCb data with Ganga

    International Nuclear Information System (INIS)

    GANGA (http://cern.ch/ganga) is a job-management tool that offers a simple, efficient and consistent user analysis tool in a variety of heterogeneous environments: from local clusters to global Grid systems. Experiment specific plug-ins allow GANGA to be customised for each experiment. For LHCb users GANGA is the officially supported and advertised tool for job submission to the Grid. The LHCb specific plug-ins allow support for end-to-end analysis helping the user to perform his complete analysis with the help of GANGA. This starts with the support for data selection, where a user can select data sets from the LHCb Bookkeeping system. Next comes the set up for large analysis jobs: with tailored plug-ins for the LHCb core software, jobs can be managed by the splitting of these analysis jobs with the subsequent merging of the resulting files. Furthermore, GANGA offers support for Toy Monte-Carlos to help the user tune their analysis. In addition to describing the GANGA architecture, typical usage patterns within LHCb and experience with the updated LHCb DIRAC workload management system are presented.

  14. Risk and protective factors of adolescent exclusive snus users compared to non-users of tobacco, exclusive smokers and dual users of snus and cigarettes.

    Science.gov (United States)

    Larsen, E; Rise, J; Lund, K E

    2013-07-01

    The use of snus is increasing in Norway. In this study we examined differences between adolescents who were exclusive snus users, and adolescent non-users, smokers and dual users of snus and cigarettes on a number of psychosocial factors, categorized as risk variables and protective variables associated with involvement in health compromising behavior. We applied separate logistic regression models, where exclusive snus users (n=740) were compared with non-users (n=904), smokers (n=219), and dual users (n=367). Compared to non-users, the group of exclusive snus users was associated with variables traditionally predicting health risk behavior, such as smoking friends (OR=1.74, SD 1.27-2.38) and truancy (OR=2.12, SD 1.65-2.78). Compared to smokers, exclusive snus users were related to variables traditionally associated with protection against involvement in health risk behavior, e.g. higher academic orientation (OR=1.66, SD 1.12-2.45). Associations with protective factors were also observed when exclusive snus users were compared with dual users. While the group of exclusive snus users was associated with a pattern of psychosocial risk compared to non-users, they showed a more conventional pattern when compared to smokers and dual users. The group of exclusive snus users may be described on a continuum varying from psychosocial risk factors to protective factors of risk involvement depending on the group of comparison. PMID:23583834

  15. Language workbench user interfaces for data analysis

    Directory of Open Access Journals (Sweden)

    Victoria M. Benson

    2015-02-01

    Full Text Available Biological data analysis is frequently performed with command line software. While this practice provides considerable flexibility for computationally savy individuals, such as investigators trained in bioinformatics, this also creates a barrier to the widespread use of data analysis software by investigators trained as biologists and/or clinicians. Workflow systems such as Galaxy and Taverna have been developed to try and provide generic user interfaces that can wrap command line analysis software. These solutions are useful for problems that can be solved with workflows, and that do not require specialized user interfaces. However, some types of analyses can benefit from custom user interfaces. For instance, developing biomarker models from high-throughput data is a type of analysis that can be expressed more succinctly with specialized user interfaces. Here, we show how Language Workbench (LW technology can be used to model the biomarker development and validation process. We developed a language that models the concepts of Dataset, Endpoint, Feature Selection Method and Classifier. These high-level language concepts map directly to abstractions that analysts who develop biomarker models are familiar with. We found that user interfaces developed in the Meta-Programming System (MPS LW provide convenient means to configure a biomarker development project, to train models and view the validation statistics. We discuss several advantages of developing user interfaces for data analysis with a LW, including increased interface consistency, portability and extension by language composition. The language developed during this experiment is distributed as an MPS plugin (available at http://campagnelab.org/software/bdval-for-mps/.

  16. Familial analysis of MMN in cannabis users: A case study

    Directory of Open Access Journals (Sweden)

    Felicity Webster

    2013-10-01

    Full Text Available Aims: The Mismatch Negativity (MMN is a brain event-related potential marker of sensory memory and prediction error, and is thought to index N-methyl-D-aspartate receptor-mediated glutamate neurotransmission functionality. MMN is reduced in patients with schizophrenia and in their unaffected first degree relatives. MMN is also reduced in chronic cannabis users and in ex-cannabis users (33-month abstinent. Reduced MMN in ex-users suggests that cannabis-related deficits may persist after cessation of use, or alternatively this may reflect a pre-existing condition. One way of potentially elucidating this issue, is to conduct a familial analysis of the MMN in cannabis users and their non-user first degree relatives: attenuated MMN in relatives might indicate a familial vulnerability to cannabis use or to glutamatergic dysfunction. Method: One sibling pair (one cannabis user, one non-user sibling and three non-user, unrelated, matched controls completed a multi-feature MMN paradigm with duration (100ms, frequency (1200Hz and intensity (90dB deviants (deviants 6%; standards 82%, 50ms, 1000Hz, 80dB. Results: Visual inspection of MMN waveforms and patterns of means suggests that non-user siblings have MMN amplitudes intermediate to their user-siblings (whose MMN is most attenuated and controls. Examination of confidence intervals for controls (reflecting MMN amplitude variability across conditions indicated that the user-sibling had smaller MMN amplitudes for all deviant conditions, and the non-user sibling had reduced duration MMN amplitude, compared to controls. Conclusions: These preliminary data provide early evidence that MMN might reflect a pre-existing vulnerability that is antecedent to cannabis use, but exacerbated by subsequent cannabis use, and may inform current conceptualisations of cannabis as a component cause of schizophrenia. However future research should attempt to replicate these findings in a larger sample.

  17. Crianças usuárias de lente de contato nos serviços público e privado: análise comparativa Pediatric contact lens users in public and private services: comparative analysis

    Directory of Open Access Journals (Sweden)

    Daniela Araújo Toscano

    2009-04-01

    Full Text Available OBJETIVOS: Analisar as indicações, tipo, complicações do uso de lentes de contato e acuidade visual em crianças de serviços de Oftalmologia público e privado. MÉTODOS: Os dados dos prontuários de 59 crianças usuárias de lentes de contato em serviço privado (Hospital de Olhos de Pernambuco - Grupo 1, e 43 no serviço público (Fundação Altino Ventura - Grupo 2, foram analisados. A coleta de dados incluiu características sociodemográficas, idade da primeira consulta, indicação do uso da lente, tipo de lente, complicações e acuidade visual. RESULTADOS: As mais comuns indicações do uso de lente de contato no grupo 1 foram: ametropia (55,9%, anisometropia (18,6% e esotropia (16,9%. Neste grupo o leucoma e phthisis não estavam presentes. No grupo 2, as indicações mais comuns foram: anisometropia (23,2%, ametropia e leucoma (18,6% cada, e phthisis (16,3%. A esotropia não apareceu no grupo 2. O tipo de lente de contato mais prescrita foi a gelatinosa de uso permanente (não descartável no grupo 1 (45,8% e no grupo 2 (32,6%. A complicação mais encontrada no grupo 1 foi desconforto (33,3% e no grupo 2 perda da lente (60%. CONCLUSÕES: A indicação de ametropia predominou nos pacientes privados e as anisometropias nos públicos. O tipo de lente de contato mais prescrita nos dois grupos foi a gelatinosa de uso permanente. A complicação mais frequente no grupo 1 foi desconforto e no grupo 2 perda da lente. A acuidade visual na maioria dos pacientes manteve-se.PURPOSE: To analyze the indications, type and complications of contact lens use and visual acuity in children, in ophthalmological, public and private, services. METHODS: The information from the medical records of 59 contact lens users at a private service (Hospital de Olhos de Pernambuco - Recife - PE- Brazil - group 1, and 43 at public service (Fundação Altino Ventura - Recife - PE - Brazil - group 2, was analyzed. The collected data included: demographic information; age at first examination; indication of lens use; contact lens type; complications and visual acuity. RESULTS: The most common indications of contact lenses in group 1 were: ametropia (55.9%, anisometropia (18.6% and esotropia (16.9%. In this group leukoma and phthisis were not present. In group 2 the most common indications were: anisometropia (23.2%, ametropia (18.6%, leukoma (18.6% and phthisis (16.3%. Esotropia was not found in group 2. The most prescribed contact lens was soft and of permanent use in group 1 (45.8% and in group 2 (32.6%. The most frequent complication in group 1 was discomfort (33.3% and in group 2 was the loss of the lens (60%. CONCLUSIONS: The most frequent indication in private services was ametropia and anisometropia in the public ones. The type of lens mostly prescribed in both groups was soft and of permanent use. The most frequent complication in group 1 was discomfort and in group 2 loss of the lens. The visual acuity was the same in the majority of the patients.

  18. Comparative risk analysis

    International Nuclear Information System (INIS)

    In this paper, the risks of various energy systems are discussed considering severe accidents analysis, particularly the probabilistic safety analysis, and probabilistic safety criteria, and the applications of these criteria and analysis. The comparative risk analysis has demonstrated that the largest source of risk in every society is from daily small accidents. Nevertheless, we have to be more concerned about severe accidents. The comparative risk analysis of five different energy systems (coal, oil, gas, LWR and STEC (Solar)) for the public has shown that the main sources of risks are coal and oil. The latest comparative risk study of various energy has been conducted in the USA and has revealed that the number of victims from coal is 42 as many than victims from nuclear. A study for severe accidents from hydro-dams in United States has estimated the probability of dam failures at 1 in 10,000 years and the number of victims between 11,000 and 260,000. The average occupational risk from coal is one fatal accident in 1,000 workers/year. The probabilistic safety analysis is a method that can be used to assess nuclear energy risks, and to analyze the severe accidents, and to model all possible accident sequences and consequences. The 'Fault tree' analysis is used to know the probability of failure of the different systems at each point of accident sequences and to calculate the probability of risks. After calculating the probability of failure, the criteria for judging the numerical results have to be developed, that is the quantitative and qualitative goals. To achieve these goals, several systems have been devised by various countries members of AIEA. The probabilistic safety ana-lysis method has been developed by establishing a computer program permit-ting to know different categories of safety related information. 19 tabs. (author)

  19. Analysis of the 2011 CERN Document Server User Satisfaction Survey

    CERN Document Server

    Le Meur, J-Y

    2012-01-01

    This document analyses the results of the CDS User Satisfaction Survey that ran during Autumn 2011. It shows the feedback received relative to the Search engine, the Submission procedures and the Collaborative tools. It then describes the feedback received relative to the content of the CERN Document Server and general user impressions. The feedback is compared with some key statistics that were automatically extracted from the CDS user activity logs in 2011. A selection of the most useful free text comments that were made by the respondents of the survey is also listed. In the last part, an action list derived from the combined analysis of the survey, the statistics and the comments is being drafted. 150 answers have been received in total (some, with sections not completed). 2/3rd of these answers came from users working at CERN.

  20. Automation of user analysis workflow in CMS

    International Nuclear Information System (INIS)

    CMS has a distributed computing model, based on a hierarchy of tiered regional computing centres. However, the end physicist is not interested in the details of the computing model nor the complexity of the underlying infrastructure, but only to access and use efficiently and easily the remote services. The CMS Remote Analysis Builder (CRAB) is the official CMS tool that allows the access to the distributed data in a transparent way. We present the current development direction, which is focused on improving the interface presented to the user and adding intelligence to CRAB such that it can be used to automate more and more the work done on behalf of user. We also present the status of deployment of the CRAB system and the lessons learnt in deploying this tool to the CMS collaboration.

  1. User-friendly program for multitask analysis

    Science.gov (United States)

    Caporali, Sergio A.; Akladios, Magdy; Becker, Paul E.

    2000-10-01

    Research on lifting activities has led to the design of several useful tools for evaluating tasks that involve lifting and material handling. The National Institute for Occupational Safety and Health (NIOSH) has developed a single task lifting equation. This formula has been frequently used as a guide in the field of ergonomics and material handling. While being much more complicated, the multi-task formula will provide a more realistic analysis for the evaluation of lifting and material handling jobs. A user friendly tool has been developed to assist professionals in the field of ergonomics in analyzing multitask types of material handling jobs. The program allows for up to 10 different tasks to be evaluated. The program requires a basic understanding of the NIOSH lifting guidelines and the six multipliers that are involved in the analysis of each single task. These multipliers are: Horizontal Distance Multiplier (HM), Vertical Distance Multiplier (VM), Vertical Displacement Multiplier (DM), Frequency of lifting Multiplier (FM), Coupling Multiplier (CM), and the Asymmetry Multiplier (AM). Once a given job is analyzed, a researched list of recommendations is provided to the user in an attempt to reduce the potential risk factors that are associated with each task.

  2. CONPAS 1.0 (CONtainment Performance Analysis System). User's manual

    International Nuclear Information System (INIS)

    CONPAS (CONtainment Performance Analysis System) is a verified computer code package to integrate the numerical, graphical, and results-operation aspects of Level 2 probabilistic safety assessments (PSA) for nuclear power plants automatically under a PC window environment. Compared with the existing DOS-based computer codes for Level 2 PSA, the most important merit of the window-based computer code is that user can easily describe and quantify the accident progression models, and manipulate the resultant outputs in a variety of ways. As a main logic for accident progression analysis, CONPAS employs a concept of the small containment phenomenological event tree (CPET) helpful to trace out visually individual accident progressions and of the large supporting event tree (LSET) for its detailed quantification. For the integrated analysis of Level 2 PSA, the code utilizes four distinct, but closely related modules; (1) ET Editor for construction of several event tree models describing the accident progressions, (2) Computer for quantification of the constructed event trees and graphical display of the resultant outputs, (3) Text Editor for preparation of input decks for quanification and utilization of calculational results, and (4) Mechanistic Code Plotter for utilization of results obtained from severe accident analysis codes. Compared with other existing computer codes for Level 2 PSA, the CONPAS code provides several advanced features: computational aspects including systematic uncertainty analysis, importance analysis, sensitivity analysis and data interpretation, reporting aspects including tabling and graphic as well as user-friend interface. 10 refs. (Author) .new

  3. User controlled analysis of gamma ray spectra

    International Nuclear Information System (INIS)

    The program 'ANGES' was designed as a general purpose high-resolution γ ray spectrometry program. It offers all main features as commercial software packages except control of acquisition process. The program is able to perform automatic analysis of spectra but it is announced as 'user controlled' because it supplies all intermediate results and gives the opportunity these results to be analyzed and corrected by the user. ANGES offers: multi document Windows interface; detailed visualization of spectra; nuclide library based on another contribution to CRP; energy and FWHM calibrations calculated by means of orthonormal polynomial fitting; peak processing engine based on a non-linear LSQ method for fitting peaks; peak location engine, based on first derivative method is provided to ease the preparation of a spectrum for processing; two methods for efficiency calibration (an efficiency calibration curve and reference table); peak identification and activity calculation procedure; a number of corrections (true coincidence summing, background correction, pile up rejection and so on); an option for processing series of similar spectra. The fitting procedure can be applied to the whole spectrum or to a single Region-of-Interest (ROI). The assumed peak shape is pure Gaussian. All peaks in single ROI are assumed to have the same FWHM. The maximum number of peaks in a single ROI is restricted to 25, the maximum ROI length is 512 channels, and the baseline is described with a polynomial of a degree up to 4. As a result of the identification procedure a report file is issued containing spectrum processing results, list of identified and not identified peaks, list of identified nuclides and background nuclides. (author)

  4. Factors affecting mobile users' switching intentions: a comparative study between the brazilian and german markets

    Scientific Electronic Library Online (English)

    Rodrigo C., Martins; Luis Fernando, Hor-Meyll; Jorge Brantes, Ferreira.

    2013-09-01

    Full Text Available In the competitive wireless market, there are many drivers behind customer defection. Switching barriers, service performance, perceived value in carriers' offers, satisfaction and other constructs can play a pivotal role in customer switching processes among carriers. This study attempts to compare [...] the influence of these factors, taking into account cultural similarities and dissimilarities, between Brazilian and German mobile users. A survey was conducted on two samples, comprising 202 users in Brazil and 200 users in Germany, with culture being employed as a context variable to compare their behavior. Analysis by means of multi-group structural equation modeling suggests that, in both countries, customer satisfaction, service performance and perceived value have important roles in defining customer switching intentions, while switching barriers did not prove to have significant effects upon switching behavior. The results also suggest that the two cultures are sufficiently similar (considering the sample and the variables involved in the model) to not present differences in the studied consumer behavior, except for the effect of service performance upon satisfaction.

  5. User office proposal handling and analysis software

    OpenAIRE

    Beckmann, Joern; Neuhaus, Juergen

    2002-01-01

    At FRM-II the installation of a user office software is under consideration, supporting tasks like proposal handling, beam time allocation, data handling and report creation. Although there are several software systems in use at major facilities, most of them are not portable to other institutes. In this paper the requirements for a modular and extendable user office software are discussed with focus on security related aspects like how to prevent a denial of service attack on fully automated...

  6. Visual Encodings of Temporal Uncertainty: A Comparative User Study.

    Science.gov (United States)

    Gschwandtnei, Theresia; Bogl, Markus; Federico, Paolo; Miksch, Silvia

    2016-01-01

    A number of studies have investigated different ways of visualizing uncertainty. However, in the temporal dimension, it is still an open question how to best represent uncertainty, since the special characteristics of time require special visual encodings and may provoke different interpretations. Thus, we have conducted a comprehensive study comparing alternative visual encodings of intervals with uncertain start and end times: gradient plots, violin plots, accumulated probability plots, error bars, centered error bars, and ambiguation. Our results reveal significant differences in error rates and completion time for these different visualization types and different tasks. We recommend using ambiguation - using a lighter color value to represent uncertain regions - or error bars for judging durations and temporal bounds, and gradient plots - using fading color or transparency - for judging probability values. PMID:26529717

  7. Statistical Analysis and Learning Method on Users' Feedbacks

    OpenAIRE

    Doris H.T. Wong; Sureswaran Ramadass

    2011-01-01

    Problem statement: The purpose of this study was constructing an effective algorithm in order to learn the users feedbacks from their displayed visualization. This is due to existing visualization tools typically involve presenting network data regardless of considering level of network data knowledge among different levels of computer users. The machine learning algorithm has been applied in order to find the most effective statistical analysis and learning algorithm in learning users feedba...

  8. Transportation Routing Analysis Geographic Information System (TRAGIS) User's Manual

    International Nuclear Information System (INIS)

    The Transportation Routing Analysis Geographic Information System (TRAGIS) model is used to calculate highway, rail, or waterway routes within the United States. TRAGIS is a client-server application with the user interface and map data files residing on the user's personal computer and the routing engine and network data files on a network server. The user's manual provides documentation on installation and the use of the many features of the model

  9. User Behavior and IM Topology Analysis

    Directory of Open Access Journals (Sweden)

    Qiang Yan

    2008-07-01

    Full Text Available The use of Instant Messaging, or IM, has become widely adopted in private and corporate communication. They can provide instant, multi-directed and multi-types of communications which make the message spreading in IM different from those in WWW, Blog and email systems. Groups have great impacts on message spreading in IM. The research demonstrates the power law distribution of groups in MSN with parameter γ ranging from 0.76 to 1.22. Based on an online survey, IM user behavior is analyzed from the aspects of message sending/receiving and contacts maintaining. According to the results, degree distribution of users has a peak value and doesn't present power law character. This may indicate that social networks should be a prospective direction for the research on IM topology.

  10. FPGA Based OM Analysis of User Authentication

    Directory of Open Access Journals (Sweden)

    N. Bharathi

    2014-01-01

    Full Text Available Nowadays inter-disciplinary research studies are emerging rapidly to improve the effective usage of individual domains. This study integrates User Authentication, Opinion Mining (OM and Field programmable Gate Array (FPGA. It is a good practice for any organization to get the opinion of their employees before implementing a new mechanism. This study deals about getting opinions from employees about a variety of entry and exit securities and processing to have decision support information. The user satisfaction opinions and organization’s affordability are analyzed for obtaining better authentication mechanism to prevent unauthorized entries. Since opinion mining process involves processing of large corpus, the objective of this study is to combine FPGA and thereby increasing the efficiency and performance of the system speed.

  11. FPGA Based OM Analysis of User Authentication

    OpenAIRE

    N.Bharathi; G.R. Brindha; Santhi, B.; Neelamegam, P.

    2014-01-01

    Nowadays inter-disciplinary research studies are emerging rapidly to improve the effective usage of individual domains. This study integrates User Authentication, Opinion Mining (OM) and Field programmable Gate Array (FPGA). It is a good practice for any organization to get the opinion of their employees before implementing a new mechanism. This study deals about getting opinions from employees about a variety of entry and exit securities and processing to ...

  12. Characteristics of Bitcoin Users: An Analysis of Google Search Data

    OpenAIRE

    Wilson, Matthew; Yelowitz, Aaron

    2014-01-01

    The anonymity of Bitcoin prevents analysis of its users. We collect Google Trends data to examine determinants of interest in Bitcoin. Based on anecdotal evidence regarding Bitcoin users, we construct proxies for four possible clientele: computer programming enthusiasts, speculative investors, Libertarians, and criminals. Computer programming and illegal activity search terms are positively correlated with Bitcoin interest, while Libertarian and investment terms are not.

  13. CMS Configuration Editor: GUI based application for user analysis job

    International Nuclear Information System (INIS)

    We present the user interface and the software architecture of the Configuration Editor for the CMS experiment. The analysis workflow is organized in a modular way integrated within the CMS framework that organizes in a flexible way user analysis code. The Python scripting language is adopted to define the job configuration that drives the analysis workflow. It could be a challenging task for users, especially for newcomers, to develop analysis jobs managing the configuration of many required modules. For this reason a graphical tool has been conceived in order to edit and inspect configuration files. A set of common analysis tools defined in the CMS Physics Analysis Toolkit (PAT) can be steered and configured using the Config Editor. A user-defined analysis workflow can be produced starting from a standard configuration file, applying and configuring PAT tools according to the specific user requirements. CMS users can adopt this tool, the Config Editor, to create their analysis visualizing in real time which are the effects of their actions. They can visualize the structure of their configuration, look at the modules included in the workflow, inspect the dependences existing among the modules and check the data flow. They can visualize at which values parameters are set and change them according to what is required by their analysis task. The integration of common tools in the GUI needed to adopt an object-oriented structure in the Python definition of the PAT tools and the definition of a layer of abstraction from which all PAT tools inherit.

  14. CMS Configuration Editor: GUI based application for user analysis job

    Science.gov (United States)

    de Cosa, A.

    2011-12-01

    We present the user interface and the software architecture of the Configuration Editor for the CMS experiment. The analysis workflow is organized in a modular way integrated within the CMS framework that organizes in a flexible way user analysis code. The Python scripting language is adopted to define the job configuration that drives the analysis workflow. It could be a challenging task for users, especially for newcomers, to develop analysis jobs managing the configuration of many required modules. For this reason a graphical tool has been conceived in order to edit and inspect configuration files. A set of common analysis tools defined in the CMS Physics Analysis Toolkit (PAT) can be steered and configured using the Config Editor. A user-defined analysis workflow can be produced starting from a standard configuration file, applying and configuring PAT tools according to the specific user requirements. CMS users can adopt this tool, the Config Editor, to create their analysis visualizing in real time which are the effects of their actions. They can visualize the structure of their configuration, look at the modules included in the workflow, inspect the dependences existing among the modules and check the data flow. They can visualize at which values parameters are set and change them according to what is required by their analysis task. The integration of common tools in the GUI needed to adopt an object-oriented structure in the Python definition of the PAT tools and the definition of a layer of abstraction from which all PAT tools inherit.

  15. LANCE Usage and User Analysis: Creating a Better System that Meets User Needs

    Science.gov (United States)

    Davies, D.; Boller, R. A.; Schmaltz, J. E.; Murphy, K. J.; Ilavajhala, S.; Ullah, A.; Joshi, T.

    2012-12-01

    This paper describes known uses of NASA's Land Atmosphere Near-real time Capability for EOS (LANCE) data and imagery and summarizes findings from informal interviews with LANCE users, undertaken to better understand their needs. LANCE, the NRT component of EOSDIS, provides products from MODIS, AIRS, OMI and MLS within 3 hours of satellite observation. LANCE has in excess of 50,000 unique anonymous users per month using data and imagery for wildfire management, air quality measurements, shipping, agricultural forecasting as well as monitoring volcanic plumes, dust storms, smoke plumes and floods etc. Users can be categorized as end users or as brokers who may repackage the imagery and pass it on to their own end users. Interactions with a sample of end users found the following: users like MODIS Rapid Response imagery but do not want to be confined to pre-defined subsets; they want a broader selection of imagery and those with higher bandwidth want the capability to pull in imagery in to their own web-mapping or GIS applications. Users with lower bandwidth want the capability to define their own areas-of-interest for simple download of an image file. Users also expressed a desire to see historic as well as near-real time data, so they can compare the current situation to the recent past. Users want download capabilities to enable information to be shared quickly and easily. These and other findings are being fed back to EOSDIS developers who are creating tools and services to better meet user needs. The findings from users have been valuable in ensuring that developers are on track. The most recent offerings, available http://earthdata.nasa.gov/lance, are Worldview - a web-based client which provides capability to interactively browse full-resolution, global, near real-time satellite imagery from 50+ data products from LANCE, and the Global Imagery Browse Services (GIBS) which enables both users and brokers to pull the latest imagery in to their own web mapping applications.

  16. ORMONTE, Uncertainty Analysis for User-Developed System Models

    International Nuclear Information System (INIS)

    1 - Description of program or function: ORMONTE is a generic multivariable uncertainty analysis driver which can be linked to any FORTRAN model supplied by the user. The user tells ORMONTE which variables in his model are uncertain and describes the associated probability distributions. The user also tells ORMONTE which outputs from his model are of interest and for which uncertainty profiles are desired. Given the uncertainties in the inputs, ORMONTE samples the user-defined input distributions and 'drives' or runs the users model enough times such that a probability histogram or profile is constructed for the user-defined outputs of interest. ORMONTE can also perform sequential one-variable-at-a-time sensitivity studies and elasticity analysis. The user-supplied model is not restricted to a shielding model. Any FORTRAN model where uncertain outputs can be represented as functions of uncertain, independent inputs can be used. The ORMONTE package includes a set of Probability Data Analysis (PDA) routines for converting raw probability data into probability distribution format suitable for input to ORMONTE. 2 - Method of solution: ORMONTE uses the Monte Carlo technique to sample user-defined input probability distributions. 3 - Restrictions on the complexity of the problem: None noted

  17. User-definable bull's-eye database analysis

    International Nuclear Information System (INIS)

    We developed a type of bull's-eye analysis which facilitates user-defined processing, and then explored the effects of various types of processing on the comparisons of patient information with that of reference databases. Male and female bull's-eye database were generated from 32 normal patients using unweighted 2D prefiltering, ramp backprojection, unweighted 3D postfiltering, and peak value circumferential plotting (base method). The data from each patient were then reprocessed and compared to the databases by means of three different approaches: (1) using the base method, (2) using average as opposed to peak value profiles, and (3) using a resolution recovery prefilter instead of a smoothing prefilter. Significant differences in the number of apparently abnormal regions were found between the three methods. In other words, the type of SPET-processing affected the accuracy of comparisons between patient and database information. Because even sophisticated analysis can now be performed on personal computers, we conclude that, rather than a pre-processed data file, clinical ''normal reference'' information should consist of original SPET data from a series of documented normal patients. Each user could then generate reference bull's-eye database by applying his or her own clinical processing procedures to the data. (orig./MG)

  18. Reinforcing user data analysis with Ganga in the LHC era: scalability, monitoring and user-support

    International Nuclear Information System (INIS)

    Ganga is a grid job submission and management system widely used in the ATLAS and LHCb experiments and several other communities in the context of the EGEE project. The particle physics communities have entered the LHC operation era which brings new challenges for user data analysis: a strong growth in the number of users and jobs is already noticeable. Current work in the Ganga project is focusing on dealing with these challenges. In recent Ganga releases the support for the pilot job based grid systems Panda and Dirac of the ATLAS and LHCb experiment respectively have been strengthened. A more scalable job repository architecture, which allows efficient storage of many thousands of jobs in XML or several database formats, was recently introduced. A better integration with monitoring systems, including the Dashboard and job execution monitor systems is underway. These will provide comprehensive and easy job monitoring. A simple to use error reporting tool integrated at the Ganga command-line will help to improve user support and debugging user problems. Ganga is a mature, stable and widely-used tool with long-term support from the HEP community. We report on how it is being constantly improved following the user needs for faster and easier distributed data analysis on the grid.

  19. KEY analysis system user's guide. Version 2.0

    International Nuclear Information System (INIS)

    The KEY analysis system is a software program designed to process digital wave form data from the United States National Seismograph Network. The KEY system performs many data processing and scientific analysis functions. Detailed operating procedures for the KEY analysis system are provided in this User's Guide

  20. TRANSNET: a user-accessible network of transportation analysis models

    International Nuclear Information System (INIS)

    Models and associated data bases, developed under the sponsorship of the Department of Energy (DOE) through the Transportation Technology Center at Sandia National Laboratories, have been used to support transportation analysis efforts for specific sites and for the assessments of the impacts of transportation of specific waste forms to processing/storage sites. TRANSNET, an interactive computer network, was developed to allow outside users access to these models. TRANSNET contains the most recent versions of models developed under DOE/TTC sponsorship - code modifications that have been made since the last published documentation is noted to the user on the TRANSNET screens. To permit a greater spectrum of users to utilize the models, considerable attention has been given to making the models user-friendly and in providing default data sets for typical problems. TRANSNET access and use is limited to support of DOE related program activities; for such activities there are currently no access or user charges

  1. TRANSNET - A user-accessible network of transportation analysis models

    International Nuclear Information System (INIS)

    Models and associated data bases, developed under the sponsorship of the Department of Energy (DOE) through the Transportation Technology Center at Sandia National Laboratories, have been used to support transportation analysis efforts for specific sites and for the assessments of the impacts of transportation of specific waste forms to processing/storage sites. TRANSNET, an interactive computer network, was developed to allow outside users access to these models. TRANSNET contains the most recent versions of models developed under DOE/TTC sponsored--code modifications that have been made since the last published documentation is noted to the user on the TRANSNET screens. To permit a greater spectrum of users to utilize the models, considerable attention has been given to making the models user-friendly and in providing default data sets for typical problems. TRANSNET access and use is limited to support of DOE related program activities; for such activities there are currently no access or user charges

  2. The Radiological Safety Analysis Computer Program (RSAC-5) user's manual

    International Nuclear Information System (INIS)

    The Radiological Safety Analysis Computer Program (RSAC-5) calculates the consequences of the release of radionuclides to the atmosphere. Using a personal computer, a user can generate a fission product inventory from either reactor operating history or nuclear criticalities. RSAC-5 models the effects of high-efficiency particulate air filters or other cleanup systems and calculates decay and ingrowth during transport through processes, facilities, and the environment. Doses are calculated through the inhalation, immersion, ground surface, and ingestion pathways. RSAC+, a menu-driven companion program to RSAC-5, assists users in creating and running RSAC-5 input files. This user's manual contains the mathematical models and operating instructions for RSAC-5 and RSAC+. Instructions, screens, and examples are provided to guide the user through the functions provided by RSAC-5 and RSAC+. These programs are designed for users who are familiar with radiological dose assessment methods

  3. Toxic gas accident analysis code user's manual

    International Nuclear Information System (INIS)

    One of the offsite hazards which could threaten the safety of a nuclear power plant is nearby transportation accidents involving releases of toxic gases or volatile liquids. Significant releases of such materials could endanger the plant through incapacitation of control room personnel. An interactive computer program has been developed to aid in the evaluation of control room habitability for these accidents. The first part of the program can be used to study the time history of toxic material concentrations in the control room under varying external conditions, all of which can be specified by the user. The second part estimates the annual probability of operator incapacitation at a particular plant due to nearby accidents on roads or rail lines, or at storage sites. A data base manager is provided so that all data (site and route layouts, plant characteristics, meteorological data, and chemical data) can be entered and maintained in a convenient format. The program was developed for use on CDC computers using the NOS time-sharing system

  4. BANK RATING. A COMPARATIVE ANALYSIS

    Directory of Open Access Journals (Sweden)

    Batrancea Ioan

    2015-07-01

    Full Text Available Banks in Romania offers its customers a wide range of products but which involves both risk taking. Therefore researchers seek to build rating models to help managers of banks to risk of non-recovery of loans and interest. In the following we highlight rating Raiffeisen Bank, BCR-ERSTE Bank and Transilvania Bank, based on the models CAAMPL and Stickney making a comparative analysis of the two rating models.

  5. Conversation Analysis and the User Experience

    OpenAIRE

    Woodruff, Allison; Aoki, Paul M.

    2004-01-01

    We provide two case studies in the application of ideas drawn from conversation analysis to the design of technologies that enhance the experience of human conversation. We first present a case study of the design of an electronic guidebook, focusing on how conversation analytic principles played a role in the design process. We then discuss how the guidebook project has inspired our continuing work in social, mobile audio spaces. In particular, we describe some as yet unrealized concepts for...

  6. Dairy Analytics and Nutrient Analysis (DANA) Prototype System User Manual

    Energy Technology Data Exchange (ETDEWEB)

    Sam Alessi; Dennis Keiser

    2012-10-01

    This document is a user manual for the Dairy Analytics and Nutrient Analysis (DANA) model. DANA provides an analysis of dairy anaerobic digestion technology and allows users to calculate biogas production, co-product valuation, capital costs, expenses, revenue and financial metrics, for user customizable scenarios, dairy and digester types. The model provides results for three anaerobic digester types; Covered Lagoons, Modified Plug Flow, and Complete Mix, and three main energy production technologies; electricity generation, renewable natural gas generation, and compressed natural gas generation. Additional options include different dairy types, bedding types, backend treatment type as well as numerous production, and economic parameters. DANA’s goal is to extend the National Market Value of Anaerobic Digester Products analysis (informa economics, 2012; Innovation Center, 2011) to include a greater and more flexible set of regional digester scenarios and to provide a modular framework for creation of a tool to support farmer and investor needs. Users can set up scenarios from combinations of existing parameters or add new parameters, run the model and view a variety of reports, charts and tables that are automatically produced and delivered over the web interface. DANA is based in the INL’s analysis architecture entitled Generalized Environment for Modeling Systems (GEMS) , which offers extensive collaboration, analysis, and integration opportunities and greatly speeds the ability construct highly scalable web delivered user-oriented decision tools. DANA’s approach uses server-based data processing and web-based user interfaces, rather a client-based spreadsheet approach. This offers a number of benefits over the client-based approach. Server processing and storage can scale up to handle a very large number of scenarios, so that analysis of county, even field level, across the whole U.S., can be performed. Server based databases allow dairy and digester parameters be held and managed in a single managed data repository, while allows users to customize standard values and perform individual analysis. Server-based calculations can be easily extended, versions and upgrades managed, and any changes are immediately available to all users. This user manual describes how to use and/or modify input database tables, run DANA, view and modify reports.

  7. Reliability of an Automated High-Resolution Manometry Analysis Program across Expert Users, Novice Users, and Speech-Language Pathologists

    Science.gov (United States)

    Jones, Corinne A.; Hoffman, Matthew R.; Geng, Zhixian; Abdelhalim, Suzan M.; Jiang, Jack J.; McCulloch, Timothy M.

    2014-01-01

    Purpose: The purpose of this study was to investigate inter- and intrarater reliability among expert users, novice users, and speech-language pathologists with a semiautomated high-resolution manometry analysis program. We hypothesized that all users would have high intrarater reliability and high interrater reliability. Method: Three expert…

  8. Reliability of an Automated High-Resolution Manometry Analysis Program across Expert Users, Novice Users, and Speech-Language Pathologists

    Science.gov (United States)

    Jones, Corinne A.; Hoffman, Matthew R.; Geng, Zhixian; Abdelhalim, Suzan M.; Jiang, Jack J.; McCulloch, Timothy M.

    2014-01-01

    Purpose: The purpose of this study was to investigate inter- and intrarater reliability among expert users, novice users, and speech-language pathologists with a semiautomated high-resolution manometry analysis program. We hypothesized that all users would have high intrarater reliability and high interrater reliability. Method: Three expert…

  9. User-level sentiment analysis incorporating social networks

    CERN Document Server

    Tan, Chenhao; Tang, Jie; Jiang, Long; Zhou, Ming; Li, Ping

    2011-01-01

    We show that information about social relationships can be used to improve user-level sentiment analysis. The main motivation behind our approach is that users that are somehow "connected" may be more likely to hold similar opinions; therefore, relationship information can complement what we can extract about a user's viewpoints from their utterances. Employing Twitter as a source for our experimental data, and working within a semi-supervised framework, we propose models that are induced either from the Twitter follower/followee network or from the network in Twitter formed by users referring to each other using "@" mentions. Our transductive learning results reveal that incorporating social-network information can indeed lead to statistically significant sentiment-classification improvements over the performance of an approach based on Support Vector Machines having access only to textual features.

  10. Residence time distribution software analysis. User's manual

    International Nuclear Information System (INIS)

    Radiotracer applications cover a wide range of industrial activities in chemical and metallurgical processes, water treatment, mineral processing, environmental protection and civil engineering. Experiment design, data acquisition, treatment and interpretation are the basic elements of tracer methodology. The application of radiotracers to determine impulse response as RTD as well as the technical conditions for conducting experiments in industry and in the environment create a need for data processing using special software. Important progress has been made during recent years in the preparation of software programs for data treatment and interpretation. The software package developed for industrial process analysis and diagnosis by the stimulus-response methods contains all the methods for data processing for radiotracer experiments

  11. User`s manual of a support system for human reliability analysis

    Energy Technology Data Exchange (ETDEWEB)

    Yokobayashi, Masao [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment; Tamura, Kazuo

    1995-10-01

    Many kinds of human reliability analysis (HRA) methods have been developed. However, users are required to be skillful so as to use them, and also required complicated works such as drawing event tree (ET) and calculation of uncertainty bounds. Moreover, each method is not so complete that only one method of them is not enough to evaluate human reliability. Therefore, a personal computer (PC) based support system for HRA has been developed to execute HRA practically and efficiently. The system consists of two methods, namely, simple method and detailed one. The former uses ASEP that is a simplified THERP-technique, and combined method of OAT and HRA-ET/DeBDA is used for the latter. Users can select a suitable method for their purpose. Human error probability (HEP) data were collected and a database of them was built to use for the support system. This paper describes outline of the HRA methods, support functions and user`s guide of the system. (author).

  12. Role of Users in the Developing Eco-Innovation: Comparative case research in China and France

    OpenAIRE

    Lazaric, Nathalie; Jin, Jun; Ali DOUAI (GREThA); Ayerbe, Cécile

    2014-01-01

    This article proposes a model of eco-innovation that emphasizes the role of users and regulation in the development and diffusion of eco-innovation products, by comparing the diffusion of two e-bike companies, CEP and Lvyan, from China and France. These cases show that diffusion of eco-innovation in China and France is strongly linked to the institutional context and specific consumer needs, highlighting the importance of involving users in the development and diffusion of eco-innovation in o...

  13. Multiple-user data acquisition and analysis system

    International Nuclear Information System (INIS)

    The nuclear physics program at the Brookhaven National Laboratory High Flux Beam Reactor (HFBR) employs a pair of PDP-11 computers for the dual functions of data acquisition and analysis. The data acquisition is accomplished through CAMAC and features a microprogrammed branch driver to accommodate various experimental inputs. The acquisition computer performs the functions of multi-channel analyzers, multiscaling and time-sequenced multichannel analyzers and gamma-ray coincidence analyzers. The data analysis computer is available for rapid processing of data tapes written by the acquisition computer. The ability to accommodate many users is facilitated by separating the data acquisition and analysis functions, and allowing each user to tailor the analysis to the specific requirements of his own experiment. The system is to be upgraded soon by the introduction of a dual port disk to allow a data base to be available to each computer

  14. User's operating procedures. Volume 2: Scout project financial analysis program

    Science.gov (United States)

    Harris, C. G.; Haris, D. K.

    1985-01-01

    A review is presented of the user's operating procedures for the Scout Project Automatic Data system, called SPADS. SPADS is the result of the past seven years of software development on a Prime mini-computer located at the Scout Project Office, NASA Langley Research Center, Hampton, Virginia. SPADS was developed as a single entry, multiple cross-reference data management and information retrieval system for the automation of Project office tasks, including engineering, financial, managerial, and clerical support. This volume, two (2) of three (3), provides the instructions to operate the Scout Project Financial Analysis program in data retrieval and file maintenance via the user friendly menu drivers.

  15. Meta-analysis of executive functioning in ecstasy/polydrug users.

    Science.gov (United States)

    Roberts, C A; Jones, A; Montgomery, C

    2016-06-01

    Ecstasy/3,4-methylenedioxymethamphetamine (MDMA) use is proposed to cause damage to serotonergic (5-HT) axons in humans. Therefore, users should show deficits in cognitive processes that rely on serotonin-rich, prefrontal areas of the brain. However, there is inconsistency in findings to support this hypothesis. The aim of the current study was to examine deficits in executive functioning in ecstasy users compared with controls using meta-analysis. We identified k = 39 studies, contributing 89 effect sizes, investigating executive functioning in ecstasy users and polydrug-using controls. We compared function-specific task performance in 1221 current ecstasy users and 1242 drug-using controls, from tasks tapping the executive functions - updating, switching, inhibition and access to long-term memory. The significant main effect demonstrated overall executive dysfunction in ecstasy users [standardized mean difference (SMD) = -0.18, 95% confidence interval (CI) -0.26 to -0.11, Z = 5.05, p performance deficits in access (SMD = -0.33, 95% CI -0.46 to -0.19, Z = 4.72, p control. We conclude that this is the most comprehensive analysis of executive function in ecstasy users to date and provides a behavioural correlate of potential serotonergic neurotoxicity. PMID:26966023

  16. Ontology-Aided vs. Keyword-Based Web Searches: A Comparative User Study

    OpenAIRE

    Kamel, Magdi; Lee, Ann; Powers, Ed

    2007-01-01

    Ontologies are formal explicit description of concepts in a domain of discourse, properties of these concepts, and restrictions on these properties that are specified by semantics that follow the “rules” of the domain of knowledge. As such, ontologies would be extremely useful as knowledge bases for an application attempting to add context to a particular Web search term. This paper describes such an application and reports the results of a user study designed to compare the effec...

  17. Cultural Differences in User Privacy Behavior on Social Networking Sites : An Empirical Study comparing German and Swedish Facebook Users

    OpenAIRE

    Falk, Sebastian; Riel, Nils

    2013-01-01

    Social Networking Sites (SNSs), such as Facebook, are becoming increasingly popular. Their worldwide accessibility is attracting billions of SNS users from all over the globe, which results in a variety of different cultures meeting on the respective platforms. Apart from their growing popularity, privacy issues represent a downside of SNSs attracting strong media and research attention. Considering SNS users’ cultural diversity, recent studies show that a culture influences the privacy conce...

  18. Reactor safety analysis computer program features that enhance user productivity

    International Nuclear Information System (INIS)

    This paper describes several design features of the MARY computer program that increase user productivity. The MARY program was used to analyze behavior of the Savannah River Site (SRS) K Reactor during postulated nuclear and thermal-hydraulic transients, such as overpower and underflow events, before K Reactor was placed in cold standby in 1993. These analyses provide the bases for portions of the accident chapter of the K-Reactor Safety Analysis Report

  19. Comparative Analysis of Yandex and Google Search Engines

    OpenAIRE

    Paananen, Anna

    2012-01-01

    This thesis presents a comparative analysis of algorithms and information retrieval performance of two search engines: Yandex and Google in the Russian language. Comparing two search engines is usually done with user satisfaction studies and market share measures in addition to the basic comparison measures. Yandex is the most popular search engine in Russia, while Google is the most popular search engine in the world and well known for the quality of the results. The most common opinion a...

  20. Reinforcing user data analysis with Ganga in the LHC era: scalability, monitoring and user-support.

    CERN Document Server

    Brochu, F; The ATLAS collaboration; Ebke, J; Egede, U; Elmsheuser, J; Jha, M K; Kokoszkiewicz, L; Lee, H C; Maier, A; Moscicki, J; Munchen, T; Reece, W; Samset, B; Slater, M; Tuckett, D; Van der Ster, D; Williams, M

    2011-01-01

    Ganga is a grid job submission and management system widely used in the ATLAS and LHCb experiments and several other communities in the context of the EGEE project. The particle physics communities have entered the LHC operation era which brings new challenges for user data analysis: a strong growth in the number of users and jobs is already noticeable. Current work in the Ganga project is focusing on dealing with these challenges. In recent Ganga releases the support for the pilot job based grid systems Panda and Dirac of the ATLAS and LHCb experiment respectively have been strengthened. A more scalable job repository architecture, which allows efficient storage of many thousands of jobs in XML or several database formats, was recently introduced. A better integration with monitoring systems, including the Dashboard and job execution monitor systems is underway. These will provide comprehensive and easy job monitoring. A simple to use error reporting tool integrated at the Ganga command-line will help to imp...

  1. Reinforcing User Data Analysis with Ganga in the LHC Era: Scalability, Monitoring and User-support

    CERN Document Server

    Brochu, F; The ATLAS collaboration; Ebke, J; Egede, U; Elmsheuser, J; Jha, M K; Kokoszkiewicz, L; Lee, H C; Maier, A; Moscicki, J; Munchen, T; Reece, W; Samset, B; Slater, M; Tuckett, D; Van der Ster, D; Williams, M

    2010-01-01

    Ganga is a grid job submission and management system widely used in the ATLAS and LHCb experiments and several other communities in the context of the EGEE project. The particle physics communities have entered the LHC operation era which brings new challenges for user data analysis: a strong growth in the number of users and jobs is already noticable. Current work in the Ganga project is focusing on dealing with these challenges. In recent Ganga releases the support for the pilot job based grid systems Panda and Dirac of the ATLAS and LHCb experiment respectively have been strengthened. A more scalable job repository architecture, which allows efficient storage of many thousands of jobs in XML or several database formats, was recently introduced. A better integration with monitoring systems, including the Dashboard and job execution monitor systems is underway. These will provide comprehensive and easy job monitoring. A simple to use error reporting tool integrated at the Ganga command-line will help to impr...

  2. User`s Guide for the NREL Force and Loads Analysis Program. Version 2.2

    Energy Technology Data Exchange (ETDEWEB)

    Wright, A D

    1992-08-01

    The following report gives the reader an overview of and instructions on the proper use of the National Renewable Energy Laboratory Force and Loads Analysis Program (FLAP, version 2.2). It is intended as a tool for prediction of rotor and blade loads and response for two- or three-bladed rigid hub wind turbines. The effects of turbulence are accounted for. The objectives of the report are to give an overview of the code and also show the methods of data input and correct code execution steps in order to model an example two-bladed rigid hub turbine. A large portion of the discussion (Sections 6.0, 7.0, and 8.0) is devoted to the subject of inputting and running the code for wind turbulence effects. The ability to include turbulent wind effects is perhaps the biggest change in the code since the release of FLAP version 2.01 in 1988. This report is intended to be a user`s guide. It does not contain a theoretical discussion on equations of motion, assumptions, underlying theory, etc. It is intended to be used in conjunction with Wright, Buhl, and Thresher (1988).

  3. Graphical User Interface for Simulink Integrated Performance Analysis Model

    Science.gov (United States)

    Durham, R. Caitlyn

    2009-01-01

    The J-2X Engine (built by Pratt & Whitney Rocketdyne,) in the Upper Stage of the Ares I Crew Launch Vehicle, will only start within a certain range of temperature and pressure for Liquid Hydrogen and Liquid Oxygen propellants. The purpose of the Simulink Integrated Performance Analysis Model is to verify that in all reasonable conditions the temperature and pressure of the propellants are within the required J-2X engine start boxes. In order to run the simulation, test variables must be entered at all reasonable values of parameters such as heat leak and mass flow rate. To make this testing process as efficient as possible in order to save the maximum amount of time and money, and to show that the J-2X engine will start when it is required to do so, a graphical user interface (GUI) was created to allow the input of values to be used as parameters in the Simulink Model, without opening or altering the contents of the model. The GUI must allow for test data to come from Microsoft Excel files, allow those values to be edited before testing, place those values into the Simulink Model, and get the output from the Simulink Model. The GUI was built using MATLAB, and will run the Simulink simulation when the Simulate option is activated. After running the simulation, the GUI will construct a new Microsoft Excel file, as well as a MATLAB matrix file, using the output values for each test of the simulation so that they may graphed and compared to other values.

  4. New indicators of illegal drug use to compare drug user populations for policy evaluation

    Directory of Open Access Journals (Sweden)

    Francesco Fabi

    2013-11-01

    Full Text Available Background: New trends in drug consumption show a trend towards higher poly-use. Epidemiological indicators presently used are mostly based on the prevalence of users of the “main” substances and the ranking of harm caused by drug use is based on a single substance analysis.Methods: In this paper new indicators are proposed; the approach consider the segmentation of the population with respect to the frequency of use in the last 30 days and the harm score of the various substances used by a poly-user. Scoring is based on single substance score table reported in recent papers and principal component analysis is applied to reduce dimensionality. Any user ischaracterized by the two new scores: frequency of use score and poly-use score.Results: The method is applied to the drug user populations interviewed in Communities and Low Threshold Services within the Problem Drug Use 2012 survey in four different European countries. The comparison of the poly-use score cumulative distributions gives insight about behavioural trends of drug use and also evaluate the efficacy of the intervention services. Furthermore, the application of this method to School Population Survey 2011 data allows a definition of the expected behaviour of the poly-drug score for the General Population Survey to be representative.Conclusions: In general, the method is simply and intuitive, and could be applied to surveys containing questions about drug use. A possible limitations could be that the median is chosen for calculating the frequency of use score in questionnaires containing the frequency of drug use in classes.

  5. GPP user`s guide - a general-purpose postprocessor for wind turbine data analysis

    Energy Technology Data Exchange (ETDEWEB)

    Buhl, Jr, M L

    1995-01-01

    GPP (pronounced {open_quotes}jeep{close_quotes}) is a General-Purpose Postprocessor for wind turbine data analysis. The author, a member of the Wind Technology Division (WTD) of the National Renewable Energy Laboratory (NREL), developed GPP to postprocess test data and simulation predictions. GPP reads data into large arrays and allows the user to run many types of analyses on the data stored in memory. It runs on inexpensive computers common in the wind industry. One can even use it on a laptop in the field. The author wrote the program in such a way as to make it easy to add new types of analyses and to port it to many types of computers. Although GPP is very powerful and feature-rich, it is still very easy to learn and to use. Exhaustive error trapping prevents one from losing valuable work due to input errors. GPP will, hopefully, make a significant impact on engineering productivity in the wind industry.

  6. Architecture of collaborating frameworks: simulation, visualisation, user interface and analysis

    International Nuclear Information System (INIS)

    In modern high energy and astrophysics experiments the variety of user requirements and the complexity of the problem domain often involve the collaboration of several software frameworks, and different components are responsible for providing the functionalities related to each domain. For instance, a common use case consists in studying the physics effects and the detector performance, resulting from primary events, in a given detector configuration, to evaluate the physics reach of the experiment or optimise the detector design. Such a study typically involves various components: Simulation, Visualisation, Analysis and (interactive) User Interface. The authors focus on the design aspects of the collaboration of these frameworks and on the technologies that help to simplify the complex process of software design

  7. Comparative analysis of metal samples

    International Nuclear Information System (INIS)

    Metal wastes were analysed to establish its origin with respect to a set of pieces. The elemental analysis was realized using the PIXE technique (Proton induced X-ray emission). Results are presented. (Author)

  8. Sociological analysis and comparative education

    Science.gov (United States)

    Woock, Roger R.

    1981-12-01

    It is argued that comparative education is essentially a derivative field of study, in that it borrows theories and methods from academic disciplines. After a brief humanistic phase, in which history and philosophy were central for comparative education, sociology became an important source. In the mid-50's and 60's, sociology in the United States was characterised by Structural Functionalism as a theory, and Social Survey as a dominant methodology. Both were incorporated into the development of comparative education. Increasingly in the 70's, and certainly today, the new developments in sociology are characterised by an attack on Positivism, which is seen as the philosophical position underlying both functionalism and survey methods. New or re-discovered theories with their attendant methodologies included Marxism, Phenomenological Sociology, Critical Theory, and Historical Social Science. The current relationship between comparative education and social science is one of uncertainty, but since social science is seen to be returning to its European roots, the hope is held out for the development of an integrated social theory and method which will provide a much stronger basis for developments in comparative education.

  9. Comparing Binaural Pre-processing Strategies II: Speech Intelligibility of Bilateral Cochlear Implant Users.

    Science.gov (United States)

    Baumgärtel, Regina M; Hu, Hongmei; Krawczyk-Becker, Martin; Marquardt, Daniel; Herzke, Tobias; Coleman, Graham; Adiloğlu, Kamil; Bomke, Katrin; Plotz, Karsten; Gerkmann, Timo; Doclo, Simon; Kollmeier, Birger; Hohmann, Volker; Dietz, Mathias

    2015-01-01

    Several binaural audio signal enhancement algorithms were evaluated with respect to their potential to improve speech intelligibility in noise for users of bilateral cochlear implants (CIs). 50% speech reception thresholds (SRT50) were assessed using an adaptive procedure in three distinct, realistic noise scenarios. All scenarios were highly nonstationary, complex, and included a significant amount of reverberation. Other aspects, such as the perfectly frontal target position, were idealized laboratory settings, allowing the algorithms to perform better than in corresponding real-world conditions. Eight bilaterally implanted CI users, wearing devices from three manufacturers, participated in the study. In all noise conditions, a substantial improvement in SRT50 compared to the unprocessed signal was observed for most of the algorithms tested, with the largest improvements generally provided by binaural minimum variance distortionless response (MVDR) beamforming algorithms. The largest overall improvement in speech intelligibility was achieved by an adaptive binaural MVDR in a spatially separated, single competing talker noise scenario. A no-pre-processing condition and adaptive differential microphones without a binaural link served as the two baseline conditions. SRT50 improvements provided by the binaural MVDR beamformers surpassed the performance of the adaptive differential microphones in most cases. Speech intelligibility improvements predicted by instrumental measures were shown to account for some but not all aspects of the perceptually obtained SRT50 improvements measured in bilaterally implanted CI users. PMID:26721921

  10. User Profiling Techniques: A comparative study in the context of e-commerce websites

    OpenAIRE

    Fleuren, M.C.W.

    2012-01-01

    Today’s society is filled with a lot of information. It has become difficult to find the information we are looking for on the World Wide Web. When using e-commerce websites this is believed to lead to less sales. In order to facilitate this problem many websites can adjust the information that is presented to users based on the users’ needs. To achieve this several intelligent techniques can be used. In this study a selection of these techniques are explained and compared in order to give th...

  11. Community-centric analysis of user engagement in Skype social network

    OpenAIRE

    Rossetti, Giulio; PAPPALARDO Luca; Kikas, Riivo; Pedreschi, Dino; Giannotti, Fosca; Dumas, Marlon

    2015-01-01

    Traditional approaches to user engagement analysis focus on individual users. In this paper we address user engagement analysis at the level of groups of users (social communities). From the entire Skype social network we extract communities by means of representative community detection methods each one providing node partitions having their own peculiarities. We then examine user engagement in the extracted communities putting into evidence clear relations between topological and geographic...

  12. Development of a task analysis tool to facilitate user interface design

    Science.gov (United States)

    Scholtz, Jean C.

    1992-01-01

    A good user interface is one that facilitates the user in carrying out his task. Such interfaces are difficult and costly to produce. The most important aspect in producing a good interface is the ability to communicate to the software designers what the user's task is. The Task Analysis Tool is a system for cooperative task analysis and specification of the user interface requirements. This tool is intended to serve as a guide to development of initial prototypes for user feedback.

  13. Collocation Dictionaries: A Comparative Analysis

    OpenAIRE

    Buendía Castro, Miriam; Faber, Pamela

    2014-01-01

    The importance of phraseological information in lexicographic resources is experiencing an exponential growth. This is evident in the publication in recent years of a wide variety of combinatorial or collocation dictionaries. This paper describes and compares the main monolingual collocation dictionaries for English and Spanish in regards to the following: (i) types of collocation encoded; (ii) kinds of collocational information offered; (iii) place for collocations in the micro or macrostruc...

  14. Comparative analysis of Caenorhabditis genomes

    OpenAIRE

    Vergara-Correa, Ismael

    2011-01-01

    Comparative genomic studies between Caenorhabditis species as well as within C. elegans strains have proved useful for unveiling the genetic basis of differences in biological processes and phenotypical variation. An important step for such studies is the accurate detection and characterization of genomic conservation and divergence. Using newly developed tools OrthoCluster and OrthoClusterDB, perfect and imperfect conserved synteny between the two chromosomal assemblies of C. elegans and it...

  15. Who are the users of speed regulation assistance? Comparing driver characteristics of casual and intensive system users

    OpenAIRE

    HUTH, Véronique; BRUSQUE, Corinne; BRUYAS, Marie-Pierre; LANCELLE, Valérie

    2013-01-01

    Speed regulation assistance can contribute to road safety provided that drivers use the systems on a regular basis. With the objective to gain knowledge about drivers who use Cruise Control and the Speed Limiter, a comparison of the characteristics of casual and intensive users was performed with survey data. The results show that gender and annual mileage play a role for the usage frequency of Cruise Control, whereas the usage frequency of the Speed Limiter depends on age. Consistent effects...

  16. Forecasting methods: a comparative analysis

    OpenAIRE

    Iqbal, Javed

    2001-01-01

    Forecasting is an important tool for management, planning and administration in various fields. In this paper forecasting performance of different methods is considered using time series data of Pakistan's export to United Sates and money supply. It is found that, like other studies of this nature, no single forecasting method provides better forecast for both the series. The techniques considered are ARIMA, Regression Analysis, Vector Autoregression (VAR), Error Correction Model (ECM) and AR...

  17. BWR plant dynamic analysis code BWRDYN user's manual

    International Nuclear Information System (INIS)

    Computer code BWRDYN has been developed for thermal-hydraulic analysis of a BWR plant. It can analyze the various types of transient caused by not only small but also large disturbances such as operating mode changes and/or system malfunctions. The verification of main analytical models of the BWRDYN code has been performed with measured data of actual BWR plant. Furthermore, the installation of BOP (Balance of Plant) model has made it possible to analyze the effect of BOP on reactor system. This report describes on analytical models and instructions for user of the BWRDYN code. (author)

  18. CMS dashboard for monitoring of the user analysis activities

    Science.gov (United States)

    Karavakis, Edward; Andreeva, Julia; Maier, Gerhild; Khan, Akram

    2012-12-01

    The CMS Virtual Organisation (VO) uses various fully distributed job submission methods and execution backends. The CMS jobs are processed on several middleware platforms such as the gLite, the ARC and the OSG. Up to 200,000 CMS jobs are submitted daily to the Worldwide LHC Computing Grid (WLCG) infrastructure and this number is steadily growing. These mentioned factors increase the complexity of the monitoring of the user analysis activities within the CMS VO. Reliable monitoring is an aspect of particular importance; it is a vital factor for the overall improvement of the quality of the CMS VO infrastructure.

  19. User's manual of JT-60 experimental data analysis system

    International Nuclear Information System (INIS)

    In the Japan Atomic Energy Agency Naka Fusion Institute, a lot of experiments have been conducted by using the large tokamak device JT-60 aiming to realize fusion power plant. In order to optimize the JT-60 experiment and to investigate complex characteristics of plasma, JT-60 experimental data analysis system was developed and used for collecting, referring and analyzing the JT-60 experimental data. Main components of the system are a data analysis server and a database server for the analyses and accumulation of the experimental data respectively. Other peripheral devices of the system are magnetic disk units, NAS (Network Attached Storage) device, and a backup tape drive. This is a user's manual of the JT-60 experimental data analysis system. (author)

  20. GCtool for fuel cell systems design and analysis : user documentation.

    Energy Technology Data Exchange (ETDEWEB)

    Ahluwalia, R.K.; Geyer, H.K.

    1999-01-15

    GCtool is a comprehensive system design and analysis tool for fuel cell and other power systems. A user can analyze any configuration of component modules and flows under steady-state or dynamic conditions. Component models can be arbitrarily complex in modeling sophistication and new models can be added easily by the user. GCtool also treats arbitrary system constraints over part or all of the system, including the specification of nonlinear objective functions to be minimized subject to nonlinear, equality or inequality constraints. This document describes the essential features of the interpreted language and the window-based GCtool environment. The system components incorporated into GCtool include a gas flow mixer, splitier, heater, compressor, gas turbine, heat exchanger, pump, pipe, diffuser, nozzle, steam drum, feed water heater, combustor, chemical reactor, condenser, fuel cells (proton exchange membrane, solid oxide, phosphoric acid, and molten carbonate), shaft, generator, motor, and methanol steam reformer. Several examples of system analysis at various levels of complexity are presented. Also given are instructions for generating two- and three-dimensional plots of data and the details of interfacing new models to GCtool.

  1. Analysis of the Navigation Behavior of the Users' using Grey Relational Pattern Analysis with Markov Chains

    OpenAIRE

    BINDU MADHURI .Ch,; DR. ANAND CHANDULAL.J

    2010-01-01

    Generally user page visits are sequential in nature. The large number of Web pages on many Web sites has raised navigational problems. Markov chains have been used to model user sequential navigational behavior on the World Wide Web (WWW).The enormous growth in the number of documents in the WWW increases the need for improved link navigation and path analysis models. Link prediction and path analysis are important problems with a wide range of applications ranging from personalization to web...

  2. #DigitalHealth: Exploring Users' Perspectives through Social Media Analysis.

    Science.gov (United States)

    Afyouni, Soroosh; Fetit, Ahmed E; Arvanitis, Theodoros N

    2015-01-01

    In order to explore the role of social media in forming an understanding of digital healthcare, we conducted a study involving sentiment and network analysis of Twitter contents. In doing this, we gathered 20,400 tweets that mentioned the key term #DigitalHealth for 55 hours, over a three-day period. In addition to examining users' opinions through sentiment analysis, we calculated in-degree centralities of nodes to identify the hubs in the network of interactions. The results suggest that the overall opinion about digital healthcare is generally positive. Additionally, our findings indicate that the most prevalent keywords, associated with digital health, widely range from mobile health to wearable technologies and big data. Surprisingly, the results show that the newly announced wearable technologies could occupy the majority of discussions. PMID:26153005

  3. Performance analysis of an opportunistic multi-user cognitive network with multiple primary users

    KAUST Repository

    Khan, Fahd Ahmed

    2014-03-01

    Consider a multi-user underlay cognitive network where multiple cognitive users concurrently share the spectrum with a primary network with multiple users. The channel between the secondary network is assumed to have independent but not identical Nakagami-m fading. The interference channel between the secondary users (SUs) and the primary users is assumed to have Rayleigh fading. A power allocation based on the instantaneous channel state information is derived when a peak interference power constraint is imposed on the secondary network in addition to the limited peak transmit power of each SU. The uplink scenario is considered where a single SU is selected for transmission. This opportunistic selection depends on the transmission channel power gain and the interference channel power gain as well as the power allocation policy adopted at the users. Exact closed form expressions for the moment-generating function, outage performance, symbol error rate performance, and the ergodic capacity are derived. Numerical results corroborate the derived analytical results. The performance is also studied in the asymptotic regimes, and the generalized diversity gain of this scheduling scheme is derived. It is shown that when the interference channel is deeply faded and the peak transmit power constraint is relaxed, the scheduling scheme achieves full diversity and that increasing the number of primary users does not impact the diversity order. © 2014 John Wiley & Sons, Ltd.

  4. Blog Content and User Engagement - An Insight Using Statistical Analysis.

    Directory of Open Access Journals (Sweden)

    Apoorva Vikrant Kulkarni

    2013-06-01

    Full Text Available Since the past few years organizations have increasingly realized the value of social media in positioning, propagating and marketing the product/service and organization itself. Today every organization be it small or big has realized the essence of creating a space in the World Wide Web. Social Media through its multifaceted platforms has enabled the organizations to propagate their brands. There are a number of social media networks which are helpful in spreading the message to customers. Many organizations are having full time web analytics teams that are regularly trying to ensure that prospectivecustomers are visiting their organization through various forms of social media. Web analytics is foreseen as a tool for Business Intelligence by organizations and there are a large number of analytics tools available for monitoring the visibility of a particular brand on the web. For example, Google has its ownanalytic tool that is very widely used. There are number of free as well as paid analytical tools available on the internet. The objective of this paper is to study what content in a blog present in the social media creates a greater impact on user engagement. The study statistically analyzes the relation between content of the blog and user engagement. The statistical analysis was carried out on a blog of a reputed management institute in Pune to arrive at conclusions.

  5. User's guide for the REBUS-3 fuel cycle analysis capability

    International Nuclear Information System (INIS)

    REBUS-3 is a system of programs designed for the fuel-cycle analysis of fast reactors. This new capability is an extension and refinement of the REBUS-3 code system and complies with the standard code practices and interface dataset specifications of the Committee on Computer Code Coordination (CCCC). The new code is hence divorced from the earlier ARC System. In addition, the coding has been designed to enhance code exportability. Major new capabilities not available in the REBUS-2 code system include a search on burn cycle time to achieve a specified value for the multiplication constant at the end of the burn step; a general non-repetitive fuel-management capability including temporary out-of-core fuel storage, loading of fresh fuel, and subsequent retrieval and reloading of fuel; significantly expanded user input checking; expanded output edits; provision of prestored burnup chains to simplify user input; option of fixed-or free-field BCD input formats; and, choice of finite difference, nodal or spatial flux-synthesis neutronics in one-, two-, or three-dimensions

  6. Usability and use reference in the social network facebook: a netnographic analysis of technological users

    Directory of Open Access Journals (Sweden)

    Naiara Silva Ferreira

    2015-10-01

    Full Text Available This article presents a study about the preference of use in virtual social networks, using Facebook as object of study, to identify the motivational factors for the usability of this technology platform. The social network Facebook has been chosen to present a technological scenario of high sociability and virtual interaction. The methodology used was the netnography, being made through the collection of discussions in North American sites of news and forums online, where there is a large critical user participation on the internet, about the gains and frustrations in this context. The content analysis was performed comparing the categories of users found in the literature about values that motivate consumer technology, describing the hedonic, social, utilitarian values and perceptions of risk in consumption when related to lack of privacy. The results show two main groups of users of this technology and 7 subgroups. Therefore, the contribution of the study is that the formation of these groups may reflect technological usability of user groups around the world. The study also brings to the discussion issues related to the behaviors of the users of virtual networks which can be useful for businesses and their relationships with consumers and also the development of new knowledge from such criticism and demands that digital consumers expose about the technologies.

  7. International Reactor Physics Handbook Database and Analysis Tool (IDAT) - IDAT user manual

    International Nuclear Information System (INIS)

    The IRPhEP Database and Analysis Tool (IDAT) was first released in 2013 and is included on the DVD. This database and corresponding user interface allows easy access to handbook information. Selected information from each configuration was entered into IDAT, such as the measurements performed, benchmark values, calculated values and materials specifications of the benchmark. In many cases this is supplemented with calculated data such as neutron balance data, spectra data, k-eff nuclear data sensitivities, and spatial reaction rate plots. IDAT accomplishes two main objectives: 1. Allow users to search the handbook for experimental configurations that satisfy their input criteria. 2. Allow users to trend results and identify suitable benchmarks experiments for their application. IDAT provides the user with access to several categories of calculated data, including: - 1-group neutron balance data for each configuration with individual isotope contributions in the reactor system. - Flux and other reaction rates spectra in a 299-group energy scheme. Plotting capabilities were implemented into IDAT allowing the user to compare the spectra of selected configurations in the original fine energy structure or on any user-defined broader energy structure. - Sensitivity coefficients (percent changes of k-effective due to elementary change of basic nuclear data) for the major nuclides and nuclear processes in a 238-group energy structure. IDAT is actively being developed. Those approved to access the online version of the handbook will also have access to an online version of IDAT. As May 2013 marks the first release, IDAT may contain data entry errors and omissions. The handbook remains the primary source of reactor physics benchmark data. A copy of IDAT user's manual is attached to this document. A copy of the IRPhE Handbook can be obtained on request at http://www.oecd-nea.org/science/wprs/irphe/irphe-handbook/form.html

  8. SOR Users` Guide : How to Navigate Through the SOR Analysis.

    Energy Technology Data Exchange (ETDEWEB)

    United States. Bonneville Power Administration.

    1996-08-01

    The Columbia River System Operation Review (SOR) gave river managers, users, and the general public a chance to examine system operations in detail, to study how each river use affects others, and to consider the consequences of changing the way the system works. The task was enormous, and it was a multiyear undertaking. In its wake, the SOR left a multitude of documents and six years of analysis that can and should be used broadly for other reference and research purposes. This catalog will introduce you to numerous SOR products to be found throughout the 20 appendices and the Final Environmental Impact Statement (EIS) Main Report. They include maps, models, data bases, current descriptions of Federal hydro projects and river resources, publications, and slide shows.

  9. User-Defined Material Model for Progressive Failure Analysis

    Science.gov (United States)

    Knight, Norman F. Jr.; Reeder, James R. (Technical Monitor)

    2006-01-01

    An overview of different types of composite material system architectures and a brief review of progressive failure material modeling methods used for structural analysis including failure initiation and material degradation are presented. Different failure initiation criteria and material degradation models are described that define progressive failure formulations. These progressive failure formulations are implemented in a user-defined material model (or UMAT) for use with the ABAQUS/Standard1 nonlinear finite element analysis tool. The failure initiation criteria include the maximum stress criteria, maximum strain criteria, the Tsai-Wu failure polynomial, and the Hashin criteria. The material degradation model is based on the ply-discounting approach where the local material constitutive coefficients are degraded. Applications and extensions of the progressive failure analysis material model address two-dimensional plate and shell finite elements and three-dimensional solid finite elements. Implementation details and use of the UMAT subroutine are described in the present paper. Parametric studies for composite structures are discussed to illustrate the features of the progressive failure modeling methods that have been implemented.

  10. User's manual for seismic analysis code 'SONATINA-2V'

    International Nuclear Information System (INIS)

    The seismic analysis code, SONATINA-2V, has been developed to analyze the behavior of the HTTR core graphite components under seismic excitation. The SONATINA-2V code is a two-dimensional computer program capable of analyzing the vertical arrangement of the HTTR graphite components, such as fuel blocks, replaceable reflector blocks, permanent reflector blocks, as well as their restraint structures. In the analytical model, each block is treated as rigid body and is restrained by dowel pins which restrict relative horizontal movement but allow vertical and rocking motions between upper and lower blocks. Moreover, the SONATINA-2V code is capable of analyzing the core vibration behavior under both simultaneous excitations of vertical and horizontal directions. The SONATINA-2V code is composed of the main program, pri-processor for making the input data to SONATINA-2V and post-processor for data processing and making the graphics from analytical results. Though the SONATINA-2V code was developed in order to work in the MSP computer system of Japan Atomic Energy Research Institute (JAERI), the computer system was abolished with the technical progress of computer. Therefore, improvement of this analysis code was carried out in order to operate the code under the UNIX machine, SR8000 computer system, of the JAERI. The users manual for seismic analysis code, SONATINA-2V, including pri- and post-processor is given in the present report. (author)

  11. Development of Point Kernel Shielding Analysis Computer Program Implementing Recent Nuclear Data and Graphic User Interfaces

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Sang Ho; Lee, Seung Gi; Chung, Chan Young [Korea Power Engineering Co, Ltd., Seoul (Korea, Republic of); Lee, Choon Sik; Lee, Jai Ki [Hanyang Univ., Seoul (Korea, Republic of)

    2001-09-15

    In order to comply with revised national regulationson radiological protection and to implement recent nuclear data and dose conversion factors, KOPEC developed a new point kernel gamma and beta ray shielding analysis computer program. This new code, named VisualShield, adopted mass attenuation coefficient and buildup factors from recent ANSI/ANS standards and flux-to-dose conversion factors from the International Commission on Radiological Protection (ICRP) Publication 74 for estimation of effective/equivalent dose recommended in ICRP 60. VisualShield utilizes graphical user interfaces and 3-D visualization of the geometric configuration for preparing input data sets and analyzing results, which leads users to error free processing with visual effects. Code validation and data analysis were performed by comparing the results of various calculations to the data outputs of previous programs such as MCNP 4B, ISOSHLD-II, QAD-CGGP, etc.

  12. Development of Point Kernel Shielding Analysis Computer Program Implementing Recent Nuclear Data and Graphic User Interfaces

    International Nuclear Information System (INIS)

    In order to comply with revised national regulationson radiological protection and to implement recent nuclear data and dose conversion factors, KOPEC developed a new point kernel gamma and beta ray shielding analysis computer program. This new code, named VisualShield, adopted mass attenuation coefficient and buildup factors from recent ANSI/ANS standards and flux-to-dose conversion factors from the International Commission on Radiological Protection (ICRP) Publication 74 for estimation of effective/equivalent dose recommended in ICRP 60. VisualShield utilizes graphical user interfaces and 3-D visualization of the geometric configuration for preparing input data sets and analyzing results, which leads users to error free processing with visual effects. Code validation and data analysis were performed by comparing the results of various calculations to the data outputs of previous programs such as MCNP 4B, ISOSHLD-II, QAD-CGGP, etc

  13. Comparative Study and Analysis of Variability Tools

    OpenAIRE

    Bhumula, Mahendra Reddy

    2013-01-01

    The dissertation provides a comparative analysis of a number of variability tools currently in use. It serves as a catalogue for practitioners interested in the topic. We compare a range of modelling, configuring, and management tools for product line engineering. The tools surveyed are compared against the following criteria: functional, non-functional, governance issues and Technical aspects. The outcome of the analysis is provided in tabular format.

  14. Comparing the performance of expert user heuristics and an integer linear program in aircraft carrier deck operations.

    Science.gov (United States)

    Ryan, Jason C; Banerjee, Ashis Gopal; Cummings, Mary L; Roy, Nicholas

    2014-06-01

    Planning operations across a number of domains can be considered as resource allocation problems with timing constraints. An unexplored instance of such a problem domain is the aircraft carrier flight deck, where, in current operations, replanning is done without the aid of any computerized decision support. Rather, veteran operators employ a set of experience-based heuristics to quickly generate new operating schedules. These expert user heuristics are neither codified nor evaluated by the United States Navy; they have grown solely from the convergent experiences of supervisory staff. As unmanned aerial vehicles (UAVs) are introduced in the aircraft carrier domain, these heuristics may require alterations due to differing capabilities. The inclusion of UAVs also allows for new opportunities for on-line planning and control, providing an alternative to the current heuristic-based replanning methodology. To investigate these issues formally, we have developed a decision support system for flight deck operations that utilizes a conventional integer linear program-based planning algorithm. In this system, a human operator sets both the goals and constraints for the algorithm, which then returns a proposed schedule for operator approval. As a part of validating this system, the performance of this collaborative human-automation planner was compared with that of the expert user heuristics over a set of test scenarios. The resulting analysis shows that human heuristics often outperform the plans produced by an optimization algorithm, but are also often more conservative. PMID:23934675

  15. Single and Multiple Hand Gesture Recognition Systems: A Comparative Analysis

    Directory of Open Access Journals (Sweden)

    Siddharth Rautaray

    2014-10-01

    Full Text Available With the evolution of higher computing speed, efficient communication technologies, and advanced display techniques the legacy HCI techniques become obsolete and are no more helpful in accurate and fast flow of information in present day computing devices. Hence the need of user friendly human machine interfaces for real time interfaces for human computer interaction have to be designed and developed to make the man machine interaction more intuitive and user friendly. The vision based hand gesture recognition affords users with the ability to interact with computers in more natural and intuitive ways. These gesture recognition systems generally consist of three main modules like hand segmentation, hand tracking and gesture recognition from hand features, designed using different image processing techniques which are further integrated with different applications. An increase use of new interfaces based on hand gesture recognition designed to cope up with the computing devices for interaction. This paper is an effort to provide a comparative analysis between such real time vision based hand gesture recognition systems which are based on interaction using single and multiple hand gestures. Single hand gesture based recognition systems (SHGRS have fewer complexes to implement, with a constraint to the count of different gestures which is large enough with various permutations and combinations of gesture, which is possible with multiple hands in multiple hand gesture recognition systems (MHGRS. The thorough comparative analysis has been done on various other vital parameters for the recognition systems.

  16. Comparative Analysis of Virtual Education Applications

    Directory of Open Access Journals (Sweden)

    Mehmet KURT

    2006-10-01

    Full Text Available The research was conducted in order to make comparative analysis of virtual education applications. The research is conducted in survey model. The study group consists of total 300 institutes providing virtual education in the fall, spring and summer semesters of 2004; 246 in USA, 10 in Australia, 3 in South Africa, 10 in India, 21 in UK, 6 in Japan, 4 in Turkey. The information has been collected by online questionnaire sent to the target mass by e-mail. The questionnaire has been developed in two information categories as personal information and institutes and their virtual education applications. The English web design of the online questionnaire and the database has been prepared by Microsoft ASP codes which is the script language of Microsoft Front Page editor and has been tested on personal web site. The questionnaire has been pre applied in institutions providing virtual education in Australia. The English text of the questionnaire and web site design have been sent to educational technology and virtual education specialists in the countries of the study group. With the feedback received, the spelling mistakes have been corrected and concept and language validity have been completed. The application of the questionnaire has taken 40 weeks during March-November 2004. Only 135 institutes have replied. Two of the questionnaires have been discharged because they included mistaken coding, names of the institutions and countries. Valid 133 questionnaires cover approximately 44% of the study group. Questionnaires saved in the online database have been transferred to Microsoft Excel and then to SPSS by external database connection. In regards of the research objectives, the data collected has been analyzed on computer and by using SPSS statistics package program. In data analysis frequency (f, percentage (% and arithmetic mean ( have been used. In comparisons of country, institute, year, and other variables, che-square test, independent t-Test and one way variance analysis (F Test have been used. Kruskal-Wallis H test and Mann-Whitney U test have been used. Although virtual education applications differentiate in choices and applications in different countries, education levels and types, after completion of the data analysis it is seen that study group consists of people whom are graduate and undergraduate level, personal users having education expectations, between the ages of 18-45 and working full time. They mostly offer programs providing undergraduate and graduate education in social sciences, giving accredited document, certificate and title. It is seen that most of the instructors have taken a planned education and they are mostly working as full time instructors and they are taking technical support. Financial resources are obtained from fees taken from students and the resources are mostly used for personnel costs. In applications central administration and organization take place and it is seen that they interfere with universities, for physical facilities they use information process centers and virtual classrooms, and for infrastructure and support services they use information process services. It is seen that while in the teaching process they use both synchronous and asynchronous presentation technologies; in order to support course content they use e-mail, web, cd, and course book technologies to provide basic learning environment function; they prefer different environments to cover face to face education needs; they take self learning and collaboration as basis and they take projects and term paper evaluations serious; they mostly prefer multiple choice tests and they usually make virtual courses exams through the internet. Regarding the characteristics of their institutions’ applications, the study group have agreed on mostly to connection and being dependent on connection opportunities. A significant difference between their institutions’ characteristics and the model for developing computer labs, when they had started to provide virtual lessons and presentation technologies used has been found. An insignificant difference between the places of virtual education, certification, accreditation, planed education of personnel and making exams through the internet was found.

  17. The community Analysis of User Behaviors Network for Web Traffic

    OpenAIRE

    Jun Cai; Shun-Zheng Yu; Yu Wang

    2011-01-01

    Understanding the structure and dynamics of the user behavior networks for web traffic (To be convenient in next sections, we refer to replace it as UBNWT) that connect users with servers across the Internet is a key to modeling the network and designing future application. The Web-visited bipartite networks, called the user behavioral networks, display a natural bipartite structure: two kinds of nodes coexist with links only between nodes of different types. We obtained the result that the o...

  18. Micromechanics Analysis Code (MAC) User Guide: Version 1.0

    Science.gov (United States)

    Wilt, T. E.; Arnold, S. M.

    1994-01-01

    The ability to accurately predict the thermomechanical deformation response of advanced composite materials continues to play an important role in the development of these strategic materials. Analytical models that predict the effective behavior of composites are used not only by engineers performing structural analysis of large-scale composite components but also by material scientists in developing new material systems. For an analytical model to fulfill these two distinct functions it must be based on a micromechanics approach which utilizes physically based deformation and life constitutive models and allows one to generate the average (macro) response of a composite material given the properties of the individual constituents and their geometric arrangement. Here the user guide for the recently developed, computationally efficient and comprehensive micromechanics analysis code, MAC, who's predictive capability rests entirely upon the fully analytical generalized method of cells, GMC, micromechanics model is described. MAC is a versatile form of research software that 'drives' the double or triple ply periodic micromechanics constitutive models based upon GMC. MAC enhances the basic capabilities of GMC by providing a modular framework wherein (1) various thermal, mechanical (stress or strain control), and thermomechanical load histories can be imposed; (2) different integration algorithms may be selected; (3) a variety of constituent constitutive models may be utilized and/or implemented; and (4) a variety of fiber architectures may be easily accessed through their corresponding representative volume elements.

  19. Performance and security analysis of Gait-based user authentication

    OpenAIRE

    2008-01-01

    Verifying the identity of a user, usually referred to as user authentication, before granting access to the services or objects is a very important step in many applications. People pass through some sorts of authentication process in their daily life. For example, to prove having access to the computer the user is required to know a password. Similarly, to be able to activate a mobile phone the owner has to know its PIN code, etc. Some user authentication techniques are based on human physio...

  20. Creation and documentation analysis of Mobile shopper guide system: administrative and user portal

    OpenAIRE

    Charževskytė, Egidija

    2008-01-01

    Mobile shopper guide system consists of two parts mainly: mobile map, administrative and user portal. Mobile map consists of Vilnius city map and the points, which shows the location of the shops. Administrative and user portal supports mobile map. In the paper the analysis of documentation templates was done.During this work administrative and user portal was created and analyzed.

  1. Web Users Session Analysis Using DBSCAN and Two Phase Utility Mining Algorithms

    Directory of Open Access Journals (Sweden)

    G. Sunil Kumar

    2012-01-01

    Full Text Available One of the important issues in data mining is the interestingness problem. Typically, in a data mining process, the number of patterns discovered can easily exceed the capabilities of a human user to identify interesting results. To address this problem, utility measures have been used to reduce the patterns prior to presenting them to the user. A frequent itemset only reflects the statistical correlation between items, and it does not reflect the semantic significance of the items. This proposed approach uses a utility based itemset mining approach to overcome this limitation. This proposed system first uses Dbscan clustering algorithm which identifies the behavior of the users page visits, order of occurrence of visits. After applying the clustering technique High Two phase utility mining algorithm is applied, aimed at finding itemsets that contribute high utility.Mining web access sequences can discover very useful knowledge from web logs with broad applications. Mining useful Web path traversal patterns is a very important research issue in Web technologies. Knowledge about the frequent Web path traversal patterns enables us to discover the most interesting Websites traversed by the users. However, considering only the binary (presence/absence occurrences of the Websites in the Web traversal paths, real world scenarios may not be reflected. Therefore, if we consider the time spent by each user as a utility value of a website, more interesting web traversal paths can be discovered using proposed two-phase algorithm. User page visits are sequential in nature. In this paper MSNBC web navigation dataset is used to compare the efficiency and performance in web usage mining is finding the groups which share common interests General Terms Web session mining, log analysis.

  2. Mobile Phone Usage for M-Learning: Comparing Heavy and Light Mobile Phone Users

    Science.gov (United States)

    Suki, Norbayah Mohd; Suki, Norazah Mohd

    2007-01-01

    Purpose: Mobile technologies offer the opportunity to embed learning in a natural environment. The objective of the study is to examine how the usage of mobile phones for m-learning differs between heavy and light mobile phone users. Heavy mobile phone users are hypothesized to have access to/subscribe to one type of mobile content than light…

  3. Mobile Phone Usage for M-Learning: Comparing Heavy and Light Mobile Phone Users

    Science.gov (United States)

    Suki, Norbayah Mohd; Suki, Norazah Mohd

    2007-01-01

    Purpose: Mobile technologies offer the opportunity to embed learning in a natural environment. The objective of the study is to examine how the usage of mobile phones for m-learning differs between heavy and light mobile phone users. Heavy mobile phone users are hypothesized to have access to/subscribe to one type of mobile content than light…

  4. Comparing Intervention Strategies among Rural, Low SES, Young Adult Tobacco Users

    Science.gov (United States)

    Zanis, David A.; Hollm, Ronald E.; Derr, Daniel; Ibrahim, Jennifer K.; Collins, Bradley N.; Coviello, Donna; Melochick, Jennifer Ryan

    2011-01-01

    Objective: To evaluate 3-month tobacco quit rates of young adult tobacco users randomized to 2 intervention conditions. Methods: Overall 192 non-treatment-seeking 18-to-24-year-old tobacco users received educational information and advice to quit smoking. Participants were then block randomized to 2 brief intervention conditions: (1) a telephone…

  5. Sentiment Detection of Web Users Using Probabilistic Latent Semantic Analysis

    Directory of Open Access Journals (Sweden)

    Weijian Ren

    2014-10-01

    Full Text Available With the wide application of Internet in almost all fields, it has become the most important way for information publication, providing a large number of channels for spreading public opinion. Public opinions, as the response of Internet users to the information such as social events and government policies, reflect the status of both society and economics, which is highly valuable for the decision-making and public relations of enterprises. At present, the analysis methods for Internet public opinion are mainly based on discriminative approaches, such as Support Vector Machine (SVM and neural network. However, when these approaches analyze the sentiment of Internet public opinion, they are failed to exploit information hidden in text, e.g. topic. Motivated by the above observation, this paper proposes a detection method for public sentiment based on Probabilistic Latent Semantic Analysis (PLSA model. PLSA inherits the advantages of LSA, exploiting the semantic topic hidden in data. The procedure of detecting the public sentiment using this algorithm is composed of three main steps: (1 Chinese word segmentation and word refinement, with which each document is represented by a bag of words; (2 modeling the probabilistic distribution of documents using PLSA; (3 using the Z-vector of PLSA as the features of documents and delivering it to SVM for sentiment detection. We collect a set of text data from Weibo, blog, BBS etc. to evaluate our proposed approach. The experimental results shows that the proposed method in this paper can detect the public sentiment with high accuracy, outperforming the state-of-the-art approaches, i.e., word histogram based approach. The results also suggest that, text semantic analysis using PLSA could significantly boost the sentiment detection

  6. Earth Science Enterprise Solutions Network User Needs Analysis

    Science.gov (United States)

    Mita, D.; Easson, G.; Anderson, D. J.

    2006-12-01

    The University of Mississippi and Mississippi State University are partnering with National Aeronautics and Space Administration (NASA) to develop a Research Projects Knowledge Base (RPKB) and a Partner Network Knowledge Base (PNKB) that will allow the user community to more easily locate the results of NASA funded research and be able to contact potential partners for future research. The RPKB and PNKB will also help NASA and the user community generate new topics for research projects that benefit society. The assessment of the needs of the user community for the RPKB and the PNKB was conducted through a combination of phone interviews with representatives of the user community, evaluations of existing data and tools currently employed by scientists, collaborations between NASA and the MRC, and the results of a November, 2006 workshop. This information was combined with an email survey, resulting in a report that describes how the users of the RPKB and the PNKB want to access the information in the knowledge bases, input new information into the RPKB and PNKB, and generate reports and diagrams, such as formulation reports. The compilation of the user's needs presented here is being used to design access and input tools for the user community. When fully developed the RPKB and the PNKB will use the NASA enterprise architecture modeling and viewing capability to provide NASA and the user community a more efficient way to identify potential research projects and partners.

  7. Microblogging User Feature Analysis based on Boolean Classification Operations

    Directory of Open Access Journals (Sweden)

    Bing Li

    2014-01-01

    Full Text Available Due to the advance of many social network applications, social group feature analytics are attracting a lot of attention. In the meantime, microblogging, as a kind of social network application, attracts more and more people to use it. With the utilization of bigger and broader crowds over microblogging, surveying massive user features will be an important aspect of exploitation of crowd-sourced data. For better understanding microblogging user group features, in this study, a user classification approach was proposed by means of Boolean operations and it is easily find different microblogging user group features by this approach. In the experiment, some facts were discussed on the exploratory survey to exploit a great deal of microblogging data and how to analyze the features of the different user groups.

  8. Analysis of Users Web Browsing Behavior Using Markov chain Model

    Directory of Open Access Journals (Sweden)

    Diwakar Shukla

    2011-03-01

    Full Text Available In present days of growing information technology, many browsers available for surfing and web mining. A user has option to use any of them at a time to mine out the desired website. Every browser has pre-defined level of popularity and reputation in the market. This paper considers the setup of only two browsers in a computer system and a user prefers to any one, if fails, switches to the other one .The behavior of user is modeled through Markov chain procedure and transition probabilities are calculated. The quitting to browsing is treated as a parameter of variation over the popularity. Graphical study is performed to explain the inter relationship between user behavior parameters and browser market popularity parameters. If rate of a company is lowest in terms of browser failure and lowest in terms of quitting probability then company enjoys better popularity and larger user proportion

  9. ERP Software Evaluation and Comparative Analysis

    OpenAIRE

    Kalpic, Damir; Fertalj, Kresimir

    2004-01-01

    This paper presents the results of an investigation performed in 2001 under the title Comparative Analysis of Information Systems Software in Croatia. The focus was set on the comparative analysis of domestic and foreign Enterprise Resource Planning (ERP) software, which is present in Croatia. The investigation was performed from the standpoint of ERP applicability, regardless of the development methods and information technology. In other words, the evaluation was performed primarily from th...

  10. Methodological proposal for the analysis of user participation mechanisms in online media

    Directory of Open Access Journals (Sweden)

    Jaime Alonso, Ph.D.

    2012-01-01

    Full Text Available This paper presents the results of an analysis of user participation mechanisms, particularly those based in Web 2.0 technologies and applications, based on a sample of fourteen relevant Spanish online media, including the websites of newspapers, radio stations, and television channels. This analysis was conducted in October and November 2010 as part of the research subproject La evolución de los cibermedios en el marco de la convergencia digital. Tecnología y distribución (The evolution of online media in the context of digital convergence. Tecnology and distribution. The study is based on a taxonomy of the different user participation mechanisms, which distinguishes between those that are integrated within the media’s news sections and those that are independent spaces. The analysis also examines the form in which these mechanisms are managed by the media in function of the role they are assigned. Finally, the study aims to compare the different online media and to show examples and trends in the field of user participation.

  11. Model for Analysis of Energy Demand (MAED-2). User's manual

    International Nuclear Information System (INIS)

    The IAEA has been supporting its Member States in the area of energy planning for sustainable development. Development and dissemination of appropriate methodologies and their computer codes are important parts of this support. This manual has been produced to facilitate the use of the MAED model: Model for Analysis of Energy Demand. The methodology of the MAED model was originally developed by. B. Chateau and B. Lapillonne of the Institute Economique et Juridique de l'Energie (IEJE) of the University of Grenoble, France, and was presented as the MEDEE model. Since then the MEDEE model has been developed and adopted to be appropriate for modelling of various energy demand system. The IAEA adopted MEDEE-2 model and incorporated important modifications to make it more suitable for application in the developing countries, and it was named as the MAED model. The first version of the MAED model was designed for the DOS based system, which was later on converted for the Windows system. This manual presents the latest version of the MAED model. The most prominent feature of this version is its flexibility for representing structure of energy consumption. The model now allows country-specific representations of energy consumption patterns using the MAED methodology. The user can now disaggregate energy consumption according to the needs and/or data availability in her/his country. As such, MAED has now become a powerful tool for modelling widely diverse energy consumption patterns. This manual presents the model in details and provides guidelines for its application

  12. Comparative analysis of some magnetic sensors

    OpenAIRE

    Gambetta, M..; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Carmisciano, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Caratori Tontini, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Cocchi, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Muccini, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia

    2008-01-01

    This paper shows the results of a comparative analysis of 5 magnetometer in order to evaluate the performance of the new Marine Magnetics SeaSPY Overhauser probe. The test was performed at INGV Geomagnetic Observatory in Preturo(L’Aquila, Italy). Both qualitative and quantitative analysis has been carried out.

  13. Analysis of Mobile Users’ Perception towards SMS Voting

    Directory of Open Access Journals (Sweden)

    Ali Hussein Saleh Zolait

    2008-12-01

    Full Text Available Voting through Short Message Service (SMS technology is fast and reliable as the mobile technology in Malaysia is quite advanced. Most of the SMS voting mechanism is easily understood by the public. There is no need to explain the voting process in detail as almost 80% of the mobile users know how to use the SMS service. SMS voting is just another way of sending a vote to the recipient by using short code instead of using a normal mobile number. SMS voting provides a useful, secure and reliable process as mobile users are informed of the charges incurred and receive a return SMS to acknowledge that their SMS vote has been received. The objective of this study is to study the characteristics of SMS voting adopters in terms of demographic factors as well as to explore the mobile users’ perception towards SMS voting. A survey using questionnaires was conducted to gain information and opinions from a convenience sample of 300 Malaysian mobile users regarding their perceptions on using SMS to vote. The findings revealed that approximately two-thirds of the Malay respondents use SMS voting, most mobile users in the sample are single and female, and that mobile users like to send their votes using SMS. There is a significant difference between the usage of SMS voting among female respondents. Of the respondents 80 per cent perceive that the ease of use factor has greatly influenced mobile users in using SMS for voting purposes.

  14. Consumption capability analysis for Micro-blog users based on data mining

    Directory of Open Access Journals (Sweden)

    Yue Sun

    2013-07-01

    Full Text Available Data mining is an effective method of discovering useful information in a large amount of data. The capability of understanding the user’s consumption is vital for a company. Discovering the significant customers allows the company to focus on the most valuable customers. This paper uses micro-blog users’ check-in data and shop information for analysis and cluster method of data mining. We analyze user’s spending ability quantitatively based on user’s check-in actions. Compared with other clustering method, we choose DBSCAN clustering method of data mining to analyze the shop information and position. Users are divided into different categories according to their spending power. Discovering the users with high consumption level in large amounts of data, which is significant for a firm, can help the firm develop better strategies.

  15. Consumption capability analysis for Micro-blog users based on data mining

    Directory of Open Access Journals (Sweden)

    Yue Sun

    2013-07-01

    Full Text Available Data mining is an effective method of discovering useful information in a large amount of data. Thecapability of understanding the user’s consumptionis vital for a company. Discovering the significantcustomers allows the company to focus on the most valuable customers. This paper uses micro-blog users’check-in data and shop information for analysis andcluster method of data mining. We analyze user’sspending ability quantitatively based on user’s check-in actions. Compared with other clustering method, wechoose DBSCAN clustering method of data mining to analyze the shop information and position. Users aredivided into different categories according to their spending power. Discovering the users with highconsumption level in large amounts of data, which is significant for a firm, can help the firm developbetterstrategies.

  16. Academic Libraries on Facebook: an Analysis of Users' Comments

    OpenAIRE

    Γερόλιμος, Μιχάλης

    2011-01-01

    This paper examines users' comments on the Facebook pages of 20 American academic libraries and subdivides them into 22 categories. A total of 3,513 posts were examined and analyzed in various ways, including how many of the posts included user comments and how many had none; how many comments were included in each post; and what the percentage of user participation was on the library walls, in terms of 'likes' and comments. The most significant findings are that approximately 91% of the post...

  17. Cultural politics of user-generated encyclopaedias: comparing Chinese Wikipedia and Baidu Baike

    OpenAIRE

    Liao, Han-Teng; Schroeder, Ralph

    2015-01-01

    The question of how the Internet affects existing geo-cultural or geo-linguistic communities in relation to nation-states has continued to receive attention among academics and policymakers alike. Language-based technologies and services that aggregate, index, and distribute materials online may reshape pre-existing boundaries of the relationship between users and content, for instance with different language versions of user-generated encyclopaedias or different local versions of search engi...

  18. Analysis of the Navigation Behavior of the Users' using Grey Relational Pattern Analysis with Markov Chains

    Directory of Open Access Journals (Sweden)

    BINDU MADHURI .Ch,

    2010-10-01

    Full Text Available Generally user page visits are sequential in nature. The large number of Web pages on many Web sites has raised navigational problems. Markov chains have been used to model user sequential navigational behavior on the World Wide Web (WWW.The enormous growth in the number of documents in the WWW increases the need for improved link navigation and path analysis models. Link prediction and path analysis are important problems with a wide range of applications ranging from personalization to websites. The complete size of the WWW coupled with the variation in users' navigation patterns makes this a very difficult sequence modeling problem. This paper generalizes the concept of grey relational analysis to develop a technique, called grey relational pattern analysis associated with Markov chains for sequential web data, for analyzing the similarity between given patterns. Based on this technique, a clustering algorithm” Grey Clustering algorithm for Sequential Data” is proposed to finding cluster of a given data set .The problem of determining the optimal number of clusters . We develop an evaluationframework in which the Sum of Squared Error (SSE is calculated to get the efficiency of proposed algorithm. The analyzed behavior of the users used in application areas for Web usage mining Personalization, System Improvement, Site Modification, Business Intelligence, and Usage Characterization.

  19. Analysis and Improvement of a User Authentication Improved Protocol

    OpenAIRE

    Zuowen Tan

    2010-01-01

    Remote user authentication always adopts the method of password to login the server within insecure network environments. Recently, Peyravin and Jeffries proposed a practical authentication scheme based on one-way collision-resistant hash functions. However, Shim and Munilla independently showed that the scheme is vulnerable to off-line guessing attacks. In order to remove the weakness, Hölbl, Welzer and Brumenn presented an improved secure password-based protocols for remote user authenticat...

  20. Social bookmarking: an empirical analysis of connotea users’ perspectives

    OpenAIRE

    Gorman, GE; Du, HS; Chu, SKW

    2010-01-01

    This study examined the perspectives of experienced and inexperienced users of Connotea in terms of reported bookmarking behaviors, perceived usefulness of social bookmarking in information discovery and management, and perceived usefulness of particular Connotea features. A convenience sample of experienced (n=30) and inexperienced users (n=32) responded to an online survey. The questionnaire utilized a 4-point Likert scale to examine the respondents’ opinions. The findings showed that both ...

  1. Large Scale Management of Physicists Personal Analysis Data Without Employing User and Group Quotas

    Science.gov (United States)

    Norman, A.; Diesbug, M.; Gheith, M.; Illingworth, R.; Lyon, A.; Mengel, M.

    2015-12-01

    The ability of modern HEP experiments to acquire and process unprecedented amounts of data and simulation have lead to an explosion in the volume of information that individual scientists deal with on a daily basis. Explosion has resulted in a need for individuals to generate and keep large personal analysis data sets which represent the skimmed portions of official data collections, pertaining to their specific analysis. While a significant reduction in size compared to the original data, these personal analysis and simulation sets can be many terabytes or 10s of TB in size and consist of 10s of thousands of files. When this personal data is aggregated across the many physicists in a single analysis group or experiment it can represent data volumes on par or exceeding the official production samples which require special data handling techniques to deal with effectively. In this paper we explore the changes to the Fermilab computing infrastructure and computing models which have been developed to allow experimenters to effectively manage their personal analysis data and other data that falls outside of the typically centrally managed production chains. In particular we describe the models and tools that are being used to provide the modern neutrino experiments like NOvA with storage resources that are sufficient to meet their analysis needs, without imposing specific quotas on users or groups of users. We discuss the storage mechanisms and the caching algorithms that are being used as well as the toolkits are have been developed to allow the users to easily operate with terascale+ datasets.

  2. Users, User-Friendliness and Projected Uses of Isichazamazwi SesiNdebele: An Analysis

    Directory of Open Access Journals (Sweden)

    Langa Khumalo

    2011-10-01

    Full Text Available Abstract: This article discusses the first-ever monolingual general Ndebele dictionary, Isichazamazwi SesiNdebele (henceforth the ISN within the context of the history of lexicography and the compilation of dic-tionaries in Ndebele. It further assesses the scope of the dictionary with regard to its structure. It also dis-cusses decisions taken by the editors during the writing of the ISN in an attempt to compile a user-friendly dictionary primarily aimed at secondary schools and the general Ndebele population. The assumptions of the editors, coming from a non-existing lexicographic tradition, were mainly based on their experiences and intuitions as Ndebele mother-tongue speakers, educators and language practitioners. The article also ac-counts for four major uses of the dictionary.

  3. SALOME. Software for the analysis of lines or multiplets from Extrap. User's guide

    International Nuclear Information System (INIS)

    This user's guide describes the centre piece of spectral analysis programs for Extrap-T1. The method for spectral analysis is presented theoretically. It also presents the actual use of the program PROBESCHUSS and how to work on the multiplet library. The present user's guide is about PROBESCHUSS 2.1 and MULTIFIT 2.0. 7 figs, 5 appendices

  4. Comparative analysis of Carnaval II Library

    International Nuclear Information System (INIS)

    The Carnaval II cross sections library from the french fast reactor calculation system is evaluated in two ways: 10) a comparative analysis of the calculations system for fast reactors at IEN (Instituto de Engenharia Nuclear) using a 'benchmark' model is done; 20) a comparative analysis in relation to the french system itself is also done, using calculations realized with two versions of the french library: the SETR-II and the CARNAVAL IV, the first one being anterior and the second one posterior to the Carnaval II version, the one used by IEN. (Author)

  5. A comparative analysis of aircraft noise performances

    OpenAIRE

    Nicola Gualandi; Luca Mantecchini

    2009-01-01

    This paper presents a comparative analysis of aircraft acoustical performance based on the definition of a noise performance indicator called ENSA (equivalent number of standard aircraft). ENSA methodology is based on the choice of a standard aircraft, then ENSA’s values are obtained by comparing the generic aircraft’s performances with the standard aircraft’s performances. The performance evaluation is performed by analysing for each aircraft the equivalent number of standard aircrafts movem...

  6. Neutron activation analysis-comparative (NAAC)

    International Nuclear Information System (INIS)

    A software system for the reduction of comparative neutron activation analysis data is presented. Libraries are constructed to contain the elemental composition and isotopic nuclear data of an unlimited number of standards. Ratios to unknown sample data are performed by standard calibrations. Interfering peak corrections, second-order activation-product corrections, and deconvolution of multiplets are applied automatically. Passive gamma-energy analysis can be performed with the same software. 3 figures

  7. Comparative analysis of black carbon in soils

    OpenAIRE

    Schmidt, Michael W I; Skjemstad, Jan O.; Czimczik, Claudia I.; Glaser, Bruno; Prentice, Ken M; Gelinas, Yves; Thomas A.J. Kuhlbusch

    2001-01-01

    Black carbon (BC), produced by incomplete combustion of fossil fuels and vegetation, occurs ubiquitously in soils and sediments. BC exists as a continuum from partly charred material to highly graphitized soot particles, with no general agreement on clear-cut boundaries of definition or analysis. In a comparative analysis, we measured BC forms in eight soil samples by six established methods. All methods involved removal of the non-BC components from the sample by thermal or chemical means or...

  8. Comparative analysis of methods of hardness assessment

    OpenAIRE

    A. Czarski

    2009-01-01

    Purpose: The aim of this paper is to show how it could utilize the statistical methods for the process management.Design/methodology/approach: The research methodology bases on a theoretical analysis and empirical researches. A practical solution is presented to compare measurements methods of hardness and to estimate capability indices of measurement system.Findings: Measurement system analysis (MSA), particularly theory of statistical tests brings correct results for the analysed case.Resea...

  9. Highly comparative time-series analysis

    OpenAIRE

    Fulcher, Benjamin D; Jones, Nick S; Little, Max

    2012-01-01

    In this thesis, a highly comparative framework for time-series analysis is developed. The approach draws on large, interdisciplinary collections of over 9000 time-series analysis methods, or operations, and over 30 000 time series, which we have assembled. Statistical learning methods were used to analyze structure in the set of operations applied to the time series, allowing us to relate different types of scientific methods to one another, and to investigate redundancy across them. An analo...

  10. THE COMPARATIVE ANALYSIS OF ECOLOGICAL INDICATORS

    Directory of Open Access Journals (Sweden)

    Bikova E.V.

    2006-04-01

    Full Text Available The comparative analysis of ecological indicators designed and specified for Moldova and similar indicators of the countries of CIS is made in the work. Some general items of information about power systems of the countries of CIS (the established capacities, manufacture of the electric power are given, the analysis of dynamics of emissions GHG- СО2, NOx, SO2 in Moldova and comparison with the emissions level in other countries of CIS is made.

  11. User-friendly software for SANS data reduction and analysis

    International Nuclear Information System (INIS)

    At the Geesthacht Neutron Facility (GeNF) a new software is being developed for the reduction of two-dimensional small-angle neutron scattering (SANS) data. The main motivation for this work was to created software for users of our SANS facilities that is easy to use. Another motivation was to provide users with software they can also use at their home institute. Therefore, the software is implemented on a personal computer running WINDOWS. The program reads raw data from an area detector in binary or ascii format and produces ascii files containing the scattering curve. The cross section can be averaged over the whole area of the detector or over users defined sectors only. Scripts can be created for processing large numbers of files. (author)

  12. TargetVue: Visual Analysis of Anomalous User Behaviors in Online Communication Systems.

    Science.gov (United States)

    Cao, Nan; Shi, Conglei; Lin, Sabrina; Lu, Jie; Lin, Yu-Ru; Lin, Ching-Yung

    2016-01-01

    Users with anomalous behaviors in online communication systems (e.g. email and social medial platforms) are potential threats to society. Automated anomaly detection based on advanced machine learning techniques has been developed to combat this issue; challenges remain, though, due to the difficulty of obtaining proper ground truth for model training and evaluation. Therefore, substantial human judgment on the automated analysis results is often required to better adjust the performance of anomaly detection. Unfortunately, techniques that allow users to understand the analysis results more efficiently, to make a confident judgment about anomalies, and to explore data in their context, are still lacking. In this paper, we propose a novel visual analysis system, TargetVue, which detects anomalous users via an unsupervised learning model and visualizes the behaviors of suspicious users in behavior-rich context through novel visualization designs and multiple coordinated contextual views. Particularly, TargetVue incorporates three new ego-centric glyphs to visually summarize a user's behaviors which effectively present the user's communication activities, features, and social interactions. An efficient layout method is proposed to place these glyphs on a triangle grid, which captures similarities among users and facilitates comparisons of behaviors of different users. We demonstrate the power of TargetVue through its application in a social bot detection challenge using Twitter data, a case study based on email records, and an interview with expert users. Our evaluation shows that TargetVue is beneficial to the detection of users with anomalous communication behaviors. PMID:26529707

  13. Comparative Efficiency Analysis of Referral Costs in

    OpenAIRE

    Portela, Maria; Thanassoulis, Emmanuel; Graveney, Mike

    2010-01-01

    The aim of this paper is to compare English General Practitioner (GP) units in terms of their overall referral costs through Data Envelopment Analysis (DEA). Results revealed potential cost savings and benchmark practices under 4 perspectives: ‘overall cost efficiency’, ‘technical efficiency’, ‘allocative efficiency’, and ‘price efficiency’.

  14. MycoCAP - Mycobacterium Comparative Analysis Platform.

    Science.gov (United States)

    Choo, Siew Woh; Ang, Mia Yang; Dutta, Avirup; Tan, Shi Yang; Siow, Cheuk Chuen; Heydari, Hamed; Mutha, Naresh V R; Wee, Wei Yee; Wong, Guat Jah

    2015-01-01

    Mycobacterium spp. are renowned for being the causative agent of diseases like leprosy, Buruli ulcer and tuberculosis in human beings. With more and more mycobacterial genomes being sequenced, any knowledge generated from comparative genomic analysis would provide better insights into the biology, evolution, phylogeny and pathogenicity of this genus, thus helping in better management of diseases caused by Mycobacterium spp.With this motivation, we constructed MycoCAP, a new comparative analysis platform dedicated to the important genus Mycobacterium. This platform currently provides information of 2108 genome sequences of at least 55 Mycobacterium spp. A number of intuitive web-based tools have been integrated in MycoCAP particularly for comparative analysis including the PGC tool for comparison between two genomes, PathoProT for comparing the virulence genes among the Mycobacterium strains and the SuperClassification tool for the phylogenic classification of the Mycobacterium strains and a specialized classification system for strains of Mycobacterium abscessus. We hope the broad range of functions and easy-to-use tools provided in MycoCAP makes it an invaluable analysis platform to speed up the research discovery on mycobacteria for researchers. Database URL: http://mycobacterium.um.edu.my. PMID:26666970

  15. Comparing writing style feature-based classification methods for estimating user reputations in social media.

    Science.gov (United States)

    Suh, Jong Hwan

    2016-01-01

    In recent years, the anonymous nature of the Internet has made it difficult to detect manipulated user reputations in social media, as well as to ensure the qualities of users and their posts. To deal with this, this study designs and examines an automatic approach that adopts writing style features to estimate user reputations in social media. Under varying ways of defining Good and Bad classes of user reputations based on the collected data, it evaluates the classification performance of the state-of-art methods: four writing style features, i.e. lexical, syntactic, structural, and content-specific, and eight classification techniques, i.e. four base learners-C4.5, Neural Network (NN), Support Vector Machine (SVM), and Naïve Bayes (NB)-and four Random Subspace (RS) ensemble methods based on the four base learners. When South Korea's Web forum, Daum Agora, was selected as a test bed, the experimental results show that the configuration of the full feature set containing content-specific features and RS-SVM combining RS and SVM gives the best accuracy for classification if the test bed poster reputations are segmented strictly into Good and Bad classes by portfolio approach. Pairwise t tests on accuracy confirm two expectations coming from the literature reviews: first, the feature set adding content-specific features outperform the others; second, ensemble learning methods are more viable than base learners. Moreover, among the four ways on defining the classes of user reputations, i.e. like, dislike, sum, and portfolio, the results show that the portfolio approach gives the highest accuracy. PMID:27006870

  16. Transportation Routing Analysis Geographic Information System (TRAGIS) User's Manual

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, PE

    2003-09-18

    The Transportation Routing Analysis Geographic Information System (TRAGIS) model is used to calculate highway, rail, or waterway routes within the United States. TRAGIS is a client-server application with the user interface and map data files residing on the user's personal computer and the routing engine and network data files on a network server. The user's manual provides documentation on installation and the use of the many features of the model.

  17. User Movement Behavior Analysis in Mobile Service Environment

    OpenAIRE

    Mohbey Krishna K.; Thakur G.S.

    2013-01-01

    Mobile services are very important and useful to users for accessing desired information as well as performing some transactions. There are different kinds of mobile services which are used using the mobile devices. These mobile services are capable to mine the required knowledge from the huge amount of data. In this paper, mobile access pattern generation approach is proposed, which has capability to generate strong patterns between the four different parameters called mobile use...

  18. Analysis and Improvement of a User Authentication Improved Protocol

    Directory of Open Access Journals (Sweden)

    Zuowen Tan

    2010-05-01

    Full Text Available Remote user authentication always adopts the method of password to login the server within insecure network environments. Recently, Peyravin and Jeffries proposed a practical authentication scheme based on one-way collision-resistant hash functions. However, Shim and Munilla independently showed that the scheme is vulnerable to off-line guessing attacks. In order to remove the weakness, Hölbl, Welzer and Brumenn presented an improved secure password-based protocols for remote user authentication, password change and session key establishment.  Unfortunately, the remedies of their improved scheme cannot work. The improved scheme still suffers from the off-line attacks. And the password change protocol is insecure against Denial-of-Service attack. A proposed scheme is presented which overcomes these weaknesses. Detailed cryanalysis show that the proposed password-based protocols for remote user authentication, password change and session key establishment are immune against man-in-the-middle attacks, replay attacks, password guessing attacks, outsider attacks, denial-of-Service attacks and impersonation attacks.

  19. Detailed description and user`s manual of high burnup fuel analysis code EXBURN-I

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Motoe [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment; Saitou, Hiroaki

    1997-11-01

    EXBURN-I has been developed for the analysis of LWR high burnup fuel behavior in normal operation and power transient conditions. In the high burnup region, phenomena occur which are different in quality from those expected for the extension of behaviors in the mid-burnup region. To analyze these phenomena, EXBURN-I has been formed by the incorporation of such new models as pellet thermal conductivity change, burnup-dependent FP gas release rate, and cladding oxide layer growth to the basic structure of low- and mid-burnup fuel analysis code FEMAXI-IV. The present report describes in detail the whole structure of the code, models, and materials properties. Also, it includes a detailed input manual and sample output, etc. (author). 55 refs.

  20. Comparative Analysis: A Feasible Software Engineering Method

    OpenAIRE

    Maneva, Nelly

    2007-01-01

    The reasonable choice is a critical success factor for decision- making in the field of software engineering (SE). A case-driven comparative analysis has been introduced and a procedure for its systematic application has been suggested. The paper describes how the proposed method can be built in a general framework for SE activities. Some examples of experimental versions of the framework are brie y presented.

  1. Comparative Document Analysis for Large Text Corpora

    OpenAIRE

    Ren, Xiang; Lv, Yuanhua; Wang, Kuansan; Han, Jiawei

    2015-01-01

    This paper presents a novel research problem on joint discovery of commonalities and differences between two individual documents (or document sets), called Comparative Document Analysis (CDA). Given any pair of documents from a document collection, CDA aims to automatically identify sets of quality phrases to summarize the commonalities of both documents and highlight the distinctions of each with respect to the other informatively and concisely. Our solution uses a general graph-based frame...

  2. Comparative analysis of the Borrelia garinii genome

    OpenAIRE

    Glöckner, G; Lehmann, R.; Romualdi, A; Pradella, S; Schulte-Spechtel, U.; Schilhabel, M. (Markus); Wilske, B.; Sühnel, J.; Platzer, M.

    2004-01-01

    Three members of the genus Borrelia (B.burgdorferi, B.garinii, B.afzelii) cause tick-borne borreliosis. Depending on the Borrelia species involved, the borreliosis differs in its clinical symptoms. Comparative genomics opens up a way to elucidate the underlying differences in Borrelia species. We analysed a low redundancy whole-genome shotgun (WGS) assembly of a B.garinii strain isolated from a patient with neuroborreliosis in comparison to the B.burgdorferi genome. This analysis reveals that...

  3. Comparative Analysis of VNSA Complex Engineering Efforts

    OpenAIRE

    Gary Ackerman

    2016-01-01

    The case studies undertaken in this special issue demonstrate unequivocally that, despite being forced to operate clandestinely and facing the pressures of security forces seeking to hunt them down and neutralize them, at least a subset of violent non-state actors (VNSAs) are capable of some genuinely impressive feats of engineering. At the same time, success in such endeavours is not guaranteed and VNSAs will undoubtedly face a number of obstacles along the way. A comparative analysis of the...

  4. a comparative analysis through the allocation function

    OpenAIRE

    Vila Maior, Paulo

    2009-01-01

    A political-economic model largely influenced by the monetarist school inspires European Economic and Monetary Union (EMU). Accordingly, neither income redistribution nor resource allocation is the cornerstone of economic policy mix. That role is reserved to the stabilisation function. Among those scholars who discuss whether the EU is comparable to existing cases of “conventional fiscal federalism”, the analysis is frequently concentrated on allocation and redistribution. Despite macroeconom...

  5. Comparative analysis of twelve Dothideomycete plant pathogens

    Energy Technology Data Exchange (ETDEWEB)

    Ohm, Robin; Aerts, Andrea; Salamov, Asaf; Goodwin, Stephen B.; Grigoriev, Igor

    2011-03-11

    The Dothideomycetes are one of the largest and most diverse groups of fungi. Many are plant pathogens and pose a serious threat to agricultural crops grown for biofuel, food or feed. Most Dothideomycetes have only a single host and related Dothideomycete species can have very diverse host plants. Twelve Dothideomycete genomes have currently been sequenced by the Joint Genome Institute and other sequencing centers. They can be accessed via Mycocosm which has tools for comparative analysis

  6. ANALYSIS AND COMPARATIVE STUDY OF SEARCHING TECHNIQUES

    OpenAIRE

    Ayush Pathak

    2015-01-01

    We live in the age of technolgy and it is quiet obvious that it is increasing day-by-day endlessly. In this technical era researchers are focusing on the development of the existing technologies. Software engineering is the dominant branch of Computer Science that deals with the development and analysis of the software. The objective of this study is to analyze and compare the existing searching algorithms (linear search and binary search). In this paper, we will discuss both thes...

  7. Wisdom of the Crowd or Wisdom of a Few? An Analysis of Users' Content Generation

    OpenAIRE

    Baeza-Yates, Ricardo; Saez-Trumper, Diego

    2016-01-01

    In this paper we analyze how user generated content (UGC) is created, challenging the well known {\\it wisdom of crowds} concept. Although it is known that user activity in most settings follow a power law, that is, few people do a lot, while most do nothing, there are few studies that characterize well this activity. In our analysis of datasets from two different social networks, Facebook and Twitter, we find that a small percentage of active users and much less of all users represent 50\\% of...

  8. Weighted Centroid Algorithm for Estimating Primary User Location: Theoretical Analysis and Distributed Implementation

    CERN Document Server

    Wang, Jun; Han, Yuxing; ?abri?, Danijela

    2010-01-01

    Information about primary user (PU) location is crucial in enabling several key capabilities in dynamic spectrum access networks, including improved spatio-temporal sensing, intelligent location-aware routing, as well as aiding spectrum policy enforcement. Compared to other proposed non-interactive localization algorithms, the weighted centroid localization (WCL) scheme uses only received signal strength information, which makes it simple and robust to variations in the propagation environment. In contrast to prior work, which focused mainly on proposing algorithmic variations and verifying their performance through simulations, in this paper we present the first theoretical framework for WCL performance analysis in terms of its localization error distribution parameterized by node density, node placement, shadowing variance and correlation distance. Using this analysis, we quantify the robustness of WCL to various physical conditions and provide guidelines, such as node placement, for practical deployment of...

  9. Premo and Kansei: A Comparative Analysis

    OpenAIRE

    Anitawati Mohd Lokman; Khairul Khalil Ishak; Ana Hadiana

    2013-01-01

    Kansei Engineering is a technology that enables incorporation of human emotion in design requirements. It has in its perspective that Kansei is unique for different domain and unique for different target user group, and use mainly a verbal measurement instruments in its methodology. The technology is seen to have little shortcoming when there is a need to build universal design for universal target user. It will involve complexity when handling semantics since people do not speak the same lan...

  10. Sentiment Analysis of User-Generated Content on Drug Review Websites

    Directory of Open Access Journals (Sweden)

    Na, Jin-Cheon

    2015-03-01

    Full Text Available This study develops an effective method for sentiment analysis of user-generated content on drug review websites, which has not been investigated extensively compared to other general domains, such as product reviews. A clause-level sentiment analysis algorithm is developed since each sentence can contain multiple clauses discussing multiple aspects of a drug. The method adopts a pure linguistic approach of computing the sentiment orientation (positive, negative, or neutral of a clause from the prior sentiment scores assigned to words, taking into consideration the grammatical relations and semantic annotation (such as disorder terms of words in the clause. Experiment results with 2,700 clauses show the effectiveness of the proposed approach, and it performed significantly better than the baseline approaches using a machine learning approach. Various challenging issues were identified and discussed through error analysis. The application of the proposed sentiment analysis approach will be useful not only for patients, but also for drug makers and clinicians to obtain valuable summaries of public opinion. Since sentiment analysis is domain specific, domain knowledge in drug reviews is incorporated into the sentiment analysis algorithm to provide more accurate analysis. In particular, MetaMap is used to map various health and medical terms (such as disease and drug names to semantic types in the Unified Medical Language System (UMLS Semantic Network.

  11. Tracking and Analysis Framework (TAF) model documentation and user`s guide

    Energy Technology Data Exchange (ETDEWEB)

    Bloyd, C.; Camp, J.; Conzelmann, G. [and others

    1996-12-01

    With passage of the 1990 Clean Air Act Amendments, the United States embarked on a policy for controlling acid deposition that has been estimated to cost at least $2 billion. Title IV of the Act created a major innovation in environmental regulation by introducing market-based incentives - specifically, by allowing electric utility companies to trade allowances to emit sulfur dioxide (SO{sub 2}). The National Acid Precipitation Assessment Program (NAPAP) has been tasked by Congress to assess what Senator Moynihan has termed this {open_quotes}grand experiment.{close_quotes} Such a comprehensive assessment of the economic and environmental effects of this legislation has been a major challenge. To help NAPAP face this challenge, the U.S. Department of Energy (DOE) has sponsored development of an integrated assessment model, known as the Tracking and Analysis Framework (TAF). This section summarizes TAF`s objectives and its overall design.

  12. Comparative analysis of black carbon in soils

    Science.gov (United States)

    Schmidt, Michael W. I.; Skjemstad, Jan O.; Czimczik, Claudia I.; Glaser, Bruno; Prentice, Ken M.; Gelinas, Yves; Kuhlbusch, Thomas A. J.

    2001-03-01

    Black carbon (BC), produced by incomplete combustion of fossil fuels and vegetation, occurs ubiquitously in soils and sediments. BC exists as a continuum from partly charred material to highly graphitized soot particles, with no general agreement on clear-cut boundaries of definition or analysis. In a comparative analysis, we measured BC forms in eight soil samples by six established methods. All methods involved removal of the non-BC components from the sample by thermal or chemical means or a combination of both. The remaining carbon, operationally defined as BC, was quantified via mass balance, elemental composition or by exploiting benzenecarboxylic acids as molecular markers or applying 13C MAS NMR (magic angle spinning nuclear magnetic resonance) spectroscopy. BC concentrations measured for individual samples vary over 2 orders of magnitude (up to a factor of 571). One possible explanation for this wide range of results is that the individual BC methods rely on operational definitions with clear-cut but different boundaries and developed for specific scientific questions, whereas BC represents a continuum of materials with widely contrasting physicochemical properties. Thus the methods are inherently designed to analytically determine different parts of the continuum, and it is crucial to know how measurements made by different techniques relate to each other. It is clear from this preliminary comparative analysis that a collection of BC reference materials should be established as soon as possible 1 ) to ensure long-term intralaboratory and interlaboratory data quality and 2) to facilitate comparative analyses between different analytical techniques and scientific approaches

  13. A Comparative Study on Error Analysis

    DEFF Research Database (Denmark)

    Wu, Xiaoli; Zhang, Chun

    2015-01-01

    of errors in the written and spoken production of L2 learners has a long tradition in L2 pedagogy. Yet, in teaching and learning Chinese as a foreign language (CFL), only handful studies have been made either to define the ‘error’ in a pedagogically insightful way or to empirically investigate the...... occurrence of errors either in linguistic or pedagogical terms. The purpose of the current study is to demonstrate the theoretical and practical relevance of error analysis approach in CFL by investigating two cases - (1) Belgian (L1) learners’ use of Chinese (L2) comparative sentences in written production...

  14. Comparative Analysis of Hand Gesture Recognition Techniques

    Directory of Open Access Journals (Sweden)

    Arpana K. Patel

    2015-03-01

    Full Text Available During past few years, human hand gesture for interaction with computing devices has continues to be active area of research. In this paper survey of hand gesture recognition is provided. Hand Gesture Recognition is contained three stages: Pre-processing, Feature Extraction or matching and Classification or recognition. Each stage contains different methods and techniques. In this paper define small description of different methods used for hand gesture recognition in existing system with comparative analysis of all method with its benefits and drawbacks are provided.

  15. Aviation System Analysis Capability Quick Response System Report Server User's Guide

    Science.gov (United States)

    Roberts, Eileen R.; Villani, James A.; Wingrove, Earl R., III

    1996-01-01

    This report is a user's guide for the Aviation System Analysis Capability Quick Response System (ASAC QRS) Report Server. The ASAC QRS is an automated online capability to access selected ASAC models and data repositories. It supports analysis by the aviation community. This system was designed by the Logistics Management Institute for the NASA Ames Research Center. The ASAC QRS Report Server allows users to obtain information stored in the ASAC Data Repositories.

  16. Dashboard Task Monitor for managing ATLAS user analysis on the Grid

    CERN Document Server

    Sargsyan, L; Jha, M; Karavakis, E; Kokoszkiewicz, L; Saiz, P; Schovancova, J; Tuckett, D

    2014-01-01

    The organization of the distributed user analysis on the Worldwide LHC Computing Grid (WLCG) infrastructure is one of the most challenging tasks among the computing activities at the Large Hadron Collider. The Experiment Dashboard offers a solution that not only monitors but also manages (kill, resubmit) user tasks and jobs via a web interface. The ATLAS Dashboard Task Monitor provides analysis users with a tool that is independent of the operating system and GRID environment . This contribution describes the functionality of the application and its implementation details, in particular authentication, authorization and audit of the management operations.

  17. Dashboard Task Monitor for Managing ATLAS User Analysis on the Grid

    Science.gov (United States)

    Sargsyan, L.; Andreeva, J.; Jha, M.; Karavakis, E.; Kokoszkiewicz, L.; Saiz, P.; Schovancova, J.; Tuckett, D.; Atlas Collaboration

    2014-06-01

    The organization of the distributed user analysis on the Worldwide LHC Computing Grid (WLCG) infrastructure is one of the most challenging tasks among the computing activities at the Large Hadron Collider. The Experiment Dashboard offers a solution that not only monitors but also manages (kill, resubmit) user tasks and jobs via a web interface. The ATLAS Dashboard Task Monitor provides analysis users with a tool that is independent of the operating system and Grid environment. This contribution describes the functionality of the application and its implementation details, in particular authentication, authorization and audit of the management operations.

  18. Dashboard task monitor for managing ATLAS user analysis on the grid

    International Nuclear Information System (INIS)

    The organization of the distributed user analysis on the Worldwide LHC Computing Grid (WLCG) infrastructure is one of the most challenging tasks among the computing activities at the Large Hadron Collider. The Experiment Dashboard offers a solution that not only monitors but also manages (kill, resubmit) user tasks and jobs via a web interface. The ATLAS Dashboard Task Monitor provides analysis users with a tool that is independent of the operating system and Grid environment. This contribution describes the functionality of the application and its implementation details, in particular authentication, authorization and audit of the management operations.

  19. Dashboard Task Monitor for managing ATLAS user analysis on the Grid

    CERN Document Server

    Sargsyan, L; The ATLAS collaboration; Jha, M; Karavakis, E; Kokoszkiewicz, L; Saiz, P; Schovancova, J; Tuckett, D

    2013-01-01

    The organization of the distributed user analysis on the Worldwide LHC Computing Grid (WLCG) infrastructure is one of the most challenging tasks among the computing activities at the Large Hadron Collider. The Experiment Dashboard offers a solution that not only monitors but also manages (kill, resubmit) user tasks and jobs via a web interface. The ATLAS Dashboard Task Monitor provides analysis users with a tool that is operating system and GRID environment independent. This contribution describes the functionality of the application and its implementation details, in particular authentication, authorization and audit of the management operations.

  20. WASP (Wavelet Analysis of Secondary Particles Angular Distributions) package. Version 1.0. User's guide

    International Nuclear Information System (INIS)

    WASP package is a C++ program aimed to analyze angular distributions of secondary particles generated in nuclear interactions. (WASP is designed for data analysis of the STAR and ALICE experiments). It uses a wavelet analysis for this purpose and the vanishing momentum or gaussian wavelets are chosen for transformations. WASP provides an user-friendly Graphical User Interface (GUI) which makes it quite simple to use. WASP design, a brief description of the used wavelet transformation algorithm and GUI are presented in this user's guide

  1. User Behavior Analysis from Web Log using Log Analyzer Tool

    Directory of Open Access Journals (Sweden)

    Brijesh Bakariya

    2013-11-01

    Full Text Available Now a day, internet plays a role of huge database in which many websites, information and search engines are available. But due to unstructured and semi-structured data in webpage, it has become a challenging task to extract relevant information. Its main reason is that traditional knowledge based technique are not correct to efficiently utilization the knowledge, because it consist of many discover pattern, contains a lots of noise and uncertainty. In this paper, analyzing of web usage mining has been made with the help if web log data for which web log analyzer tool, “Deep Log Analyzer” to find out abstract information from particular server and also tried to find out the user behavior and also developed an ontology which consist the relation among efficient web apart of web usage mining.

  2. Chronic illness and multimorbidity among problem drug users: a comparative cross sectional pilot study in primary care.

    LENUS (Irish Health Repository)

    Cullen, Walter

    2012-02-01

    BACKGROUND: Although multimorbidity has important implications for patient care in general practice, limited research has examined chronic illness and health service utilisation among problem drug users. This study aimed to determine chronic illness prevalence and health service utilisation among problem drug users attending primary care for methadone treatment, to compare these rates with matched \\'controls\\' and to develop and pilot test a valid study instrument. METHODS: A cross-sectional study of patients attending three large urban general practices in Dublin, Ireland for methadone treatment was conducted, and this sample was compared with a control group matched by practice, age, gender and General Medical Services (GMS) status. RESULTS: Data were collected on 114 patients. Fifty-seven patients were on methadone treatment, of whom 52(91%) had at least one chronic illness (other then substance use) and 39(68%) were prescribed at least one regular medication. Frequent utilisation of primary care services and secondary care services in the previous six months was observed among patients on methadone treatment and controls, although the former had significantly higher chronic illness prevalence and primary care contact rates. The study instrument facilitated data collection that was feasible and with minimal inter-observer variation. CONCLUSION: Multimorbidity is common among problem drug users attending general practice for methadone treatment. Primary care may therefore have an important role in primary and secondary prevention of chronic illnesses among this population. This study offers a feasible study instrument for further work on this issue. (238 words).

  3. Chronic illness and multimorbidity among problem drug users: a comparative cross sectional pilot study in primary care.

    LENUS (Irish Health Repository)

    Cullen, Walter

    2009-01-01

    BACKGROUND: Although multimorbidity has important implications for patient care in general practice, limited research has examined chronic illness and health service utilisation among problem drug users. This study aimed to determine chronic illness prevalence and health service utilisation among problem drug users attending primary care for methadone treatment, to compare these rates with matched \\'controls\\' and to develop and pilot test a valid study instrument. METHODS: A cross-sectional study of patients attending three large urban general practices in Dublin, Ireland for methadone treatment was conducted, and this sample was compared with a control group matched by practice, age, gender and General Medical Services (GMS) status. RESULTS: Data were collected on 114 patients. Fifty-seven patients were on methadone treatment, of whom 52(91%) had at least one chronic illness (other then substance use) and 39(68%) were prescribed at least one regular medication. Frequent utilisation of primary care services and secondary care services in the previous six months was observed among patients on methadone treatment and controls, although the former had significantly higher chronic illness prevalence and primary care contact rates. The study instrument facilitated data collection that was feasible and with minimal inter-observer variation. CONCLUSION: Multimorbidity is common among problem drug users attending general practice for methadone treatment. Primary care may therefore have an important role in primary and secondary prevention of chronic illnesses among this population. This study offers a feasible study instrument for further work on this issue. (238 words).

  4. Comparative genome analysis of Basidiomycete fungi

    Energy Technology Data Exchange (ETDEWEB)

    Riley, Robert; Salamov, Asaf; Henrissat, Bernard; Nagy, Laszlo; Brown, Daren; Held, Benjamin; Baker, Scott; Blanchette, Robert; Boussau, Bastien; Doty, Sharon L.; Fagnan, Kirsten; Floudas, Dimitris; Levasseur, Anthony; Manning, Gerard; Martin, Francis; Morin, Emmanuelle; Otillar, Robert; Pisabarro, Antonio; Walton, Jonathan; Wolfe, Ken; Hibbett, David; Grigoriev, Igor

    2013-08-07

    Fungi of the phylum Basidiomycota (basidiomycetes), make up some 37percent of the described fungi, and are important in forestry, agriculture, medicine, and bioenergy. This diverse phylum includes symbionts, pathogens, and saprotrophs including the majority of wood decaying and ectomycorrhizal species. To better understand the genetic diversity of this phylum we compared the genomes of 35 basidiomycetes including 6 newly sequenced genomes. These genomes span extremes of genome size, gene number, and repeat content. Analysis of core genes reveals that some 48percent of basidiomycete proteins are unique to the phylum with nearly half of those (22percent) found in only one organism. Correlations between lifestyle and certain gene families are evident. Phylogenetic patterns of plant biomass-degrading genes in Agaricomycotina suggest a continuum rather than a dichotomy between the white rot and brown rot modes of wood decay. Based on phylogenetically-informed PCA analysis of wood decay genes, we predict that that Botryobasidium botryosum and Jaapia argillacea have properties similar to white rot species, although neither has typical ligninolytic class II fungal peroxidases (PODs). This prediction is supported by growth assays in which both fungi exhibit wood decay with white rot-like characteristics. Based on this, we suggest that the white/brown rot dichotomy may be inadequate to describe the full range of wood decaying fungi. Analysis of the rate of discovery of proteins with no or few homologs suggests the value of continued sequencing of basidiomycete fungi.

  5. Comparative Genome Analysis in the Integrated Microbial Genomes(IMG) System

    Energy Technology Data Exchange (ETDEWEB)

    Kyrpides, Nikos C.; Markowitz, Victor M.

    2006-03-01

    Comparative genome analysis is critical for the effectiveexploration of a rapidly growing number of complete and draft sequencesfor microbial genomes. The Integrated Microbial Genomes (IMG) system(img.jgi.doe.gov) has been developed as a community resource thatprovides support for comparative analysis of microbial genomes in anintegrated context. IMG allows users to navigate the multidimensionalmicrobial genome data space and focus their analysis on a subset ofgenes, genomes, and functions of interest. IMG provides graphicalviewers, summaries and occurrence profile tools for comparing genes,pathways and functions (terms) across specific genomes. Genes can befurther examined using gene neighborhoods and compared with sequencealignment tools.

  6. Vegetation Change Analysis User's Manual

    Energy Technology Data Exchange (ETDEWEB)

    D. J. Hansen; W. K. Ostler

    2002-10-01

    Approximately 70 percent of all U.S. military training lands are located in arid and semi-arid areas. Training activities in such areas frequently adversely affect vegetation, damaging plants and reducing the resilience of vegetation to recover once disturbed. Fugitive dust resulting from a loss of vegetation creates additional problems for human health, increasing accidents due to decreased visibility, and increasing maintenance costs for roads, vehicles, and equipment. Diagnostic techniques are needed to identify thresholds of sustainable military use. A cooperative effort among U.S. Department of Energy, U.S. Department of Defense, and selected university scientists was undertaken to focus on developing new techniques for monitoring and mitigating military impacts in arid lands. This manual focuses on the development of new monitoring techniques that have been implemented at Fort Irwin, California. New mitigation techniques are described in a separate companion manual. This User's Manual is designed to address diagnostic capabilities needed to distinguish between various degrees of sustainable and nonsustainable impacts due to military training and testing and habitat-disturbing activities in desert ecosystems. Techniques described here focus on the use of high-resolution imagery and the application of image-processing techniques developed primarily for medical research. A discussion is provided about the measurement of plant biomass and shrub canopy cover in arid. lands using conventional methods. Both semiquantitative methods and quantitative methods are discussed and reference to current literature is provided. A background about the use of digital imagery to measure vegetation is presented.

  7. Hawaiian propolis: comparative analysis and botanical origin.

    Science.gov (United States)

    Inui, Saori; Hosoya, Takahiro; Kumazaw, Shigenori

    2014-02-01

    Propolis is a resinous mixture of substances collected and processed from various botanical sources by honeybees (Apis mellifera). We recently obtained Hawaiian propolis, the study of which, to our knowledge, has not been reported. The purpose of this study was to analyze the composition of Hawaiian propolis and to identify its botanical origin. A comparative analysis of Hawaiian and Okinawan propolis and of the glandular trichomes on Macaranga tanarius fruit (the botanical origin of Okinawan propolis) was performed using reversed-phase high-performance liquid chromatography coupled with high resolution-electrospray mass spectrometry. Hawaiian propolis contained nine prenylflavonoids that were also isolated from Okinawan propolis. In conclusion, we suggest that the botanical origin of Hawaiian propolis is M. tanarius, the same as that of Okinawan propolis. PMID:24689281

  8. Nigerian Power Sector: Comparative Analysis of Productivity

    Directory of Open Access Journals (Sweden)

    Iwuamadi ObiomaChidiebere

    2015-06-01

    Full Text Available Undoubtedly, power instability in the Nigerian Power Sector despite several mitigative measures by the government has created some chocks in the national socio-economic wheel of development. Unfortunately, the conceptual objective of the power reforms to remedy inadequate power generation capacity, inefficient usage of capacity, ineffective regulation and high technical losses is tardily being achieved. This research comparatively analyzed the rate of productivity change in Nigeria’s power sector from 2005 – 2013. The analysis reveals that privatization improved the productivity index by 89%. It is expected that this work may assist the power policy makers and regulators to come up with abetter framework for the full realization of the noble goals envisaged in this reform act.

  9. Construction QA/QC systems: comparative analysis

    International Nuclear Information System (INIS)

    An analysis which compares the quality assurance/quality control (QA/QC) systems adopted in the highway, nuclear power plant, and U.S. Navy construction areas with the traditional quality control approach used in building construction is presented. Full participation and support by the owner as well as the contractor and AE firm are required if a QA/QC system is to succeed. Process quality control, acceptance testing and quality assurance responsibilities must be clearly defined in the contract documents. The owner must audit these responsibilities. A contractor quality control plan, indicating the tasks which will be performed and the fact that QA/QC personnel are independent of project time/cost pressures should be submitted for approval. The architect must develop realistic specifications which consider the natural variability of material. Acceptance criteria based on the random sampling technique should be used. 27 refs

  10. Comparative Analysis of Relational And Graph Databases

    Directory of Open Access Journals (Sweden)

    Shalini Batra

    2012-05-01

    Full Text Available Relational model has been dominating the computer industry since the 1980s mainly for storing and retrieving data. Lately, however, relational database is losing its importance due to its dependence on a rigid schema which makes it difficult to add new relationships between the objects. Another important reason of its failure is that as the available data is growing manifolds, it is becoming difficult to work with relational model as joining large number of tables is not working efficiently. One of the proposed solutions is to shift to the Graph databases as they aspire to overcome such type of problems. This paper provides a comparative analysis of a graph database Neo4j with the most prevalent relational database MySQL.

  11. Comparative Genome Analysis of Basidiomycete Fungi

    Energy Technology Data Exchange (ETDEWEB)

    Riley, Robert; Salamov, Asaf; Morin, Emmanuelle; Nagy, Laszlo; Manning, Gerard; Baker, Scott; Brown, Daren; Henrissat, Bernard; Levasseur, Anthony; Hibbett, David; Martin, Francis; Grigoriev, Igor

    2012-03-19

    Fungi of the phylum Basidiomycota (basidiomycetes), make up some 37percent of the described fungi, and are important in forestry, agriculture, medicine, and bioenergy. This diverse phylum includes the mushrooms, wood rots, symbionts, and plant and animal pathogens. To better understand the diversity of phenotypes in basidiomycetes, we performed a comparative analysis of 35 basidiomycete fungi spanning the diversity of the phylum. Phylogenetic patterns of lignocellulose degrading genes suggest a continuum rather than a sharp dichotomy between the white rot and brown rot modes of wood decay. Patterns of secondary metabolic enzymes give additional insight into the broad array of phenotypes found in the basidiomycetes. We suggest that the profile of an organism in lignocellulose-targeting genes can be used to predict its nutritional mode, and predict Dacryopinax sp. as a brown rot; Botryobasidium botryosum and Jaapia argillacea as white rots.

  12. Exploratory factor analysis and reliability analysis with missing data: A simple method for SPSS users

    Directory of Open Access Journals (Sweden)

    Bruce Weaver

    2014-09-01

    Full Text Available Missing data is a frequent problem for researchers conducting exploratory factor analysis (EFA or reliability analysis. The SPSS FACTOR procedure allows users to select listwise deletion, pairwise deletion or mean substitution as a method for dealing with missing data. The shortcomings of these methods are well-known. Graham (2009 argues that a much better way to deal with missing data in this context is to use a matrix of expectation maximization (EM covariances(or correlations as input for the analysis. SPSS users who have the Missing Values Analysis add-on module can obtain vectors ofEM means and standard deviations plus EM correlation and covariance matrices via the MVA procedure. But unfortunately, MVA has no /MATRIX subcommand, and therefore cannot write the EM correlations directly to a matrix dataset of the type needed as input to the FACTOR and RELIABILITY procedures. We describe two macros that (in conjunction with an intervening MVA command carry out the data management steps needed to create two matrix datasets, one containing EM correlations and the other EM covariances. Either of those matrix datasets can then be used asinput to the FACTOR procedure, and the EM correlations can also be used as input to RELIABILITY. We provide an example that illustrates the use of the two macros to generate the matrix datasets and how to use those datasets as input to the FACTOR and RELIABILITY procedures. We hope that this simple method for handling missing data will prove useful to both students andresearchers who are conducting EFA or reliability analysis.

  13. Comparative analysis of selected fuel cell vehicles

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-05-07

    Vehicles powered by fuel cells operate more efficiently, more quietly, and more cleanly than internal combustion engines (ICEs). Furthermore, methanol-fueled fuel cell vehicles (FCVs) can utilize major elements of the existing fueling infrastructure of present-day liquid-fueled ICE vehicles (ICEVs). DOE has maintained an active program to stimulate the development and demonstration o fuel cell technologies in conjunction with rechargeable batteries in road vehicles. The purpose of this study is to identify and assess the availability of data on FCVs, and to develop a vehicle subsystem structure that can be used to compare both FCVs and ICEV, from a number of perspectives--environmental impacts, energy utilization, materials usage, and life cycle costs. This report focuses on methanol-fueled FCVs fueled by gasoline, methanol, and diesel fuel that are likely to be demonstratable by the year 2000. The comparative analysis presented covers four vehicles--two passenger vehicles and two urban transit buses. The passenger vehicles include an ICEV using either gasoline or methanol and an FCV using methanol. The FCV uses a Proton Exchange Membrane (PEM) fuel cell, an on-board methanol reformer, mid-term batteries, and an AC motor. The transit bus ICEV was evaluated for both diesel and methanol fuels. The transit bus FCV runs on methanol and uses a Phosphoric Acid Fuel Cell (PAFC) fuel cell, near-term batteries, a DC motor, and an on-board methanol reformer. 75 refs.

  14. Comparative Analysis of Students’ Media Competences Levels

    Directory of Open Access Journals (Sweden)

    Alexander Fedorov

    2015-08-01

    Full Text Available This article analyzed the results of survey of university students’ media literacy competence (on the base of a classification of indicators of media literacy competence of the audience as an effective tool for comparative analysis of the levels of development of media competence of students of the control and experimental groups: the level of media competence of students who have a one-year training course in the framework of media literacy education courses four times higher than in similar indicators in the control group. Analysis of the results of this survey confirmed the general trend of media contacts of student audience – its orientation to entertainment genres of audiovisual media, visually appealing; positive, active, unmarried, childless, educated, highly qualified characters (primarily – male characters aged 19 to 35 years. These heroes are characteristic optimism, independence, intelligence, emotion. They have an excellent command of the life situation and have a positive impact on the development progress of the plot of a media text.

  15. Comparative Analysis of Various Cloud Technologies

    Directory of Open Access Journals (Sweden)

    Akanksha Akanksha

    2011-12-01

    Full Text Available With the increasing prevalence and demand of large scale cloudcomputing environment, a researcher has to draw more attentiontowards the services provided by the CLOUD. As the access tothe server is increasing, centralized and distributed computingarchitecture will produce bottlenecks data which affect thequality of cloud computing services and bring the huge supportto users. In this paper we are going to propose certain vitalaspects such as memory utilization, storage capacity to check theefficiency and performance of various clouds in cloudcomputing environment. This is based upon the static data. Theproposed mechanism enables users to access memories invarious systems depending on the predefined criteria. Selectionmethod for accessing the memory of a resource is properlyintroduced in this paper. Our evaluation results show that theaggregation of various clouds is effective in indicating the betterefficiency and also to reduce network traffic sent over cloudnetworks.

  16. Comparative Analysis of Various Cloud Technologies

    Directory of Open Access Journals (Sweden)

    Dr. Gurdev Singh

    2012-01-01

    Full Text Available With the increasing prevalence and demand of large scale cloudcomputing environment, a researcher has to draw more attentiontowards the services provided by the CLOUD. As the access tothe server is increasing, centralized and distributed computingarchitecture will produce bottlenecks data which affect thequality of cloud computing services and bring the huge supportto users. In this paper we are going to propose certain vitalaspects such as memory utilization, storage capacity to check theefficiency and performance of various clouds in cloudcomputing environment. This is based upon the static data. Theproposed mechanism enables users to access memories invarious systems depending on the predefined criteria. Selectionmethod for accessing the memory of a resource is properlyintroduced in this paper. Our evaluation results show that theaggregation of various clouds is effective in indicating the betterefficiency and also to reduce network traffic sent over cloudnetworks.

  17. Using text analysis to listen to building users.

    OpenAIRE

    Moezzi, Mithra; Goins, John

    2010-01-01

    This paper reports on analysis of open-ended survey responses in a commercial building occupant indoor environment satisfaction survey database maintained by UC Berkeley. Building on past analyses of Likert-scale satisfaction ratings and categories of dissatisfaction on acoustics, temperature, lighting and overall building and workspace, we use text analysis software to enrich understanding of occupants’ perspectives on what matters about the buildings they work in, and why. These comments de...

  18. A Comparative Analysis of Maritime Universities Websites

    OpenAIRE

    Ćelić, Jasmin; Cuculić, Aleksandar; Valčić, Sanjin

    2016-01-01

    Nowadays, the Internet, i.e. its leading services like the World Wide Web are unavoidable in communications, providing services and information sharing. Websites and a variety of Internet pages that make up the World Wide Web are the primary user interfaces for online business, providing information and promotional activities on the Internet. The rapid and progressive development of this medium has led to the fact that there is almost no maritime education institution without its own website,...

  19. Investigating and Comparing User Experiences of Course Management Systems: Blackboard vs. Moodle

    Science.gov (United States)

    Unal, Zafer; Unal, Aslihan

    2014-01-01

    The goal of this study is to report the results of a comparative usability study conducted in 2008-2009 on two different course management systems (CMS), BlackBoard and Moodle. 135 students enrolled in the fall 2008 and spring 2009 section of Introduction to Educational Technology participated in the study (72 and 63 respectively). At the…

  20. Investigating and Comparing User Experiences of Course Management Systems: Blackboard vs. Moodle

    Science.gov (United States)

    Unal, Zafer; Unal, Aslihan

    2014-01-01

    The goal of this study is to report the results of a comparative usability study conducted in 2008-2009 on two different course management systems (CMS), BlackBoard and Moodle. 135 students enrolled in the fall 2008 and spring 2009 section of Introduction to Educational Technology participated in the study (72 and 63 respectively). At the…

  1. Modelling User-Costs in Life Cycle Cost-Benefit (LCCB) analysis

    DEFF Research Database (Denmark)

    Thoft-Christensen, Palle

    2008-01-01

    The importance of including user's costs in Life-Cycle Cost-Benefit analysis of structures is discussed in this paper. This is especially for bridges of great importance. Repair or/and failure of a bridge will usually result in user costs greater than the repair or replacement costs of the bridge....... For the society (and the user's) it is therefore of great importance that maintenance or replacement of a bridge is performed in such a way that all costs are minimized - not only the owners cost....

  2. Comparative study between AZERTY-type and K- Hermes virtual keyboards dedicated to users with cerebral palsy

    OpenAIRE

    Guerrier, Y.; Baas, M.; Kolski, Christophe; Poirier, Franck

    2011-01-01

    The aim of this paper is to compare two virtual keyboards for people with cerebral palsy; many of these users have difficulty performing actions using their upper limbs due to large numbers of unwanted movements. The first is a classical QWERTY type keyboard, called Clavicom NG. The second is the K-Hermes proposed in this paper. K-Hermes is a reduced and monotape keyboard; its entry principles are inspired by the T9 keyboard. The aim of the experiment is to demonstrate the reduced effort and ...

  3. User's guide for 10 CFR 61 impact analysis codes

    International Nuclear Information System (INIS)

    This document explains how to use the Impact Analysis Codes used in the Draft Environmental Impact Statement (DEIS) (NUREG-0782, Vol. 1-4) supporting 10 CFR 61, Licensing Requirements for Land Disposal of Radioactive Waste. The mathematical development of the impact Analysis Codes and other information necessary to understand the results of using the Codes is contained in the DEIS, and in a supporting document, Data Base for Radioactive Waste Management (NUREG/CR-1759, Vol. 1-3). This document was prepared with the intention of accompanying a computer magnetic tape containing the Impact Analysis Codes. A form is included at the end of this document which can be used to obtain such a tape

  4. Aggregate Characterization of User Behavior in Twitter and Analysis of the Retweet Graph

    OpenAIRE

    Bild, David R.; Liu, Yue; Dick, Robert P.; Mao, Z. Morley; Wallach, Dan S.

    2014-01-01

    Most previous analysis of Twitter user behavior is focused on individual information cascades and the social followers graph. We instead study aggregate user behavior and the retweet graph with a focus on quantitative descriptions. We find that the lifetime tweet distribution is a type-II discrete Weibull stemming from a power law hazard function, the tweet rate distribution, although asymptotically power law, exhibits a lognormal cutoff over finite sample intervals, and the inter-tweet inter...

  5. FACTOR ANALYSIS OF USERS PREFERENCE ATTRIBUTES IN USING WEB OPAC IN ACADEMIC LIBRARY: A SURVEY

    OpenAIRE

    MAHENDRA K SAHU; SIBA PRASAD PANDA

    2013-01-01

    The purpose of this paper is to gain an understanding of the acceptance andpreference attributes of Web-Opac services among the users of Gandhi Group ofInstitutions, Odisha, who uses library regularly. Web OPAC is an online public accesscatalogue provides the full description of the library resources through online. In thisstudy Reliability Analysis was conducted for testing the preference of user on Web-Opacfeatures.

  6. User Suggestions Extraction from customer Reviews A Sentiment Analysis approach

    Directory of Open Access Journals (Sweden)

    Vishwanath.J,

    2011-03-01

    Full Text Available Customer review is a major criterion for the improvement of the quality of services rendered and enhancement of the deliverables. Blogs, articles and discussion forums, provide manufacturers or sellers with a good understanding of the reception level of their products in the competitive market. An interesting area from the business analysis perspective, this paper discusses an opinion based mining technique for the extraction of the relevant data using Natural Language Processing and text analysis, and comprehends suggestions from an actionable feedback.

  7. User centered product development : A comparative study between classic requirements engineering and rapid contextual design

    OpenAIRE

    Björling, Martin; Eriksson, Tim

    2015-01-01

    The software field constantly strives for improving the design methods used for designing new products and systems. A design method, Rapid Contextual Design, is well defined when it comes to redesigning existing systems but less defined when eliciting requirements and designing new products for the public market. This report compares Rapid Contextual Design with Classical Requirements Engineering to show which method works better in requirements elicitation and designing a new product. This c...

  8. HORECA. Hoger onderwijs reactor elementary core analysis system. User's manual

    International Nuclear Information System (INIS)

    HORECA is developed at IRI Delft for quick analysis of power distribution, burnup and safety for the HOR. It can be used for the manual search of a better loading of the reactor. HORECA is based on the Penn State Fuel Management Package and uses the MCRAC code included in this package as a calculation engine. (orig./HP)

  9. User-defined Material Model for Thermo-mechanical Progressive Failure Analysis

    Science.gov (United States)

    Knight, Norman F., Jr.

    2008-01-01

    Previously a user-defined material model for orthotropic bimodulus materials was developed for linear and nonlinear stress analysis of composite structures using either shell or solid finite elements within a nonlinear finite element analysis tool. Extensions of this user-defined material model to thermo-mechanical progressive failure analysis are described, and the required input data are documented. The extensions include providing for temperature-dependent material properties, archival of the elastic strains, and a thermal strain calculation for materials exhibiting a stress-free temperature.

  10. New indicators of health among adolescent drug users and evaluation of drug policies comparing countries

    Directory of Open Access Journals (Sweden)

    Elena Ventura

    2015-03-01

    Full Text Available By correlating essential features of the national drug legislations and policies of some European countries and various indicators of consumption and health of consumers, interesting patterns emerge.We conclude that it is the correct balance between a drug policy aimed at prevention, rehabilitation, and a less restrictive legislation, that, on the basis of what we have analyzed and measured, has a positive effect on drug consumption and that indicators are efficient and should be applied regularly to compare quantitatively country policies to identify best practices.

  11. Interactive user's application to Genie 2000 spectroscopy system for automation of hair neutron activation analysis

    International Nuclear Information System (INIS)

    Full text: In recent years lower plants such as mosses or lichens and for arid countries bark and leaves of tree have been used as biomonitors in environmental studies. Alongside with plants the trace elemental human hair composition also has been used as an indicator of pollution of natural and industrial environments. Because of convenience, easy access, nondestruction of sampling, and also preservation of information for a long time period, human hair even more often and widely used in various researches. In the Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan hair trace element analysis in environment monitoring and mapping and in health status studies have been used. Scientist of activation analysis laboratory always has a lot of routine work on biological objects analysis, so they regularly improved applied nuclear techniques. At present one of such good work-out technique is consider a hair multielement instrumental neutron activation analysis using single comparator standard method. Since in frames of the 'Enhanced nuclear techniques for materials identification' STCU project, the Radioanalytical Center (RAC) was created in October 2004, for analysis such objects as metals and alloys, minerals and ores, hydrogeological samples, technological products, soils, fertilizers, biological samples, foodstuff, water, sediments, construction materials, as well as materials of unknown composition the unique equipment of RAC have been used. For example, human hair analysis has performed on the base of HP Ge-detector with high resolution gamma-spectrometer of Canberra Industries, Inc. Genie-2000 Spectroscopy System of Canberra spectrometers, represents the true state of the art in spectroscopy software platforms. Genie 2000 is a comprehensive set of capabilities for acquiring and analyzing spectra from Multichannel Analyzers (MCA). Its functions include MCA control, spectral display and manipulation, basic spectrum analysis and reporting. Genie 2000 software is available in several variations and with several layered optional packages. Genie 2000 Basic Spectroscopy and Gamma Analysis Software, which available in RAC permitting us automatically obtain nuclide identification report with all needed parameters. Any applications of Genie 2000 software have not possibility to calculate analyzed elements concentration. For automation this step of INAA by using Canberra Genie 2000 Spectroscopy System we developed user's 'Human hair analysis Application' software for single comparator standard method of hair INAA. The work with the developed Application for GENIE-2000 begins with the menu, which contains four items. 1. Copying of the data. 2. Data input. 3. Viewing, editing and analyzing of the data. 4. EXIT. The item 'Copying of the data' makes copying the entered values of special user parameters from one data source into another. It is very user-friendly. It is enough to him once in one data source to enter values of necessary parameters (nuclides name, γ-lines value, factors of transformation for various times of an irradiation and cooling). Further, with the help of procedure 'Copying of the data' he can transfer them to any other data source. The item 'Data input' is carried out with the help of Graphical Batch Tools function GBTPARS and specially developed set of Form Design Specification (FDS) files for this function. This developed Application works in interactive environment as a dialogue system with user and allows calculating required nuclides concentration in analyzed samples, separately for long-lived, middle-lived and short-lived nuclides. Using the Nuclide Library Editor and comprehensive standard libraries of Genie package we created three custom libraries: Stdlib.HairL, Stdlib.HairM, Stdlib.HairS, accordingly for long-, middle- and short-lived nuclides. After processing of the next data source the Application returns the user to the menu. From here he can continue data processing, having chosen the following data source, or through menu item EXIT to leave from the application. Thus, the user has opportunity to calculate various type required nuclides concentration (with sufficient algorithm for long-, middle- and short-lived nuclides) any number of data sources not leaving from the application. In report will be shown examples of some real human hair spectra's processing with developed Application by using Graphical Batch Tools, FDS files and REXX script language packaged in Genie 2000 Spectroscopy System. The studies are supported by STCU Grant Uzb-109. (author)

  12. ATLAS user analysis on private cloud resources at GoeGrid

    Science.gov (United States)

    Glaser, F.; Nadal Serrano, J.; Grabowski, J.; Quadt, A.

    2015-12-01

    User analysis job demands can exceed available computing resources, especially before major conferences. ATLAS physics results can potentially be slowed down due to the lack of resources. For these reasons, cloud research and development activities are now included in the skeleton of the ATLAS computing model, which has been extended by using resources from commercial and private cloud providers to satisfy the demands. However, most of these activities are focused on Monte-Carlo production jobs, extending the resources at Tier-2. To evaluate the suitability of the cloud-computing model for user analysis jobs, we developed a framework to launch an ATLAS user analysis cluster in a cloud infrastructure on demand and evaluated two solutions. The first solution is entirely integrated in the Grid infrastructure by using the same mechanism, which is already in use at Tier-2: A designated Panda-Queue is monitored and additional worker nodes are launched in a cloud environment and assigned to a corresponding HTCondor queue according to the demand. Thereby, the use of cloud resources is completely transparent to the user. However, using this approach, submitted user analysis jobs can still suffer from a certain delay introduced by waiting time in the queue and the deployed infrastructure lacks customizability. Therefore, our second solution offers the possibility to easily deploy a totally private, customizable analysis cluster on private cloud resources belonging to the university.

  13. User Suggestions Extraction from customer Reviews A Sentiment Analysis approach

    OpenAIRE

    Vishwanath.J,; Aishwarya.S

    2011-01-01

    Customer review is a major criterion for the improvement of the quality of services rendered and enhancement of the deliverables. Blogs, articles and discussion forums, provide manufacturers or sellers with a good understanding of the reception level of their products in the competitive market. An interesting area from the business analysis perspective, this paper discusses an opinion based mining technique for the extraction of the relevant data using Natural Language Processing and text ana...

  14. Independent Fiscal Institutions: A Comparative Analysis

    Directory of Open Access Journals (Sweden)

    Patrizia MAGARÒ

    2013-06-01

    Full Text Available The sovereign debt crisis and the new legal framework of European economic governance have forced most of the EU Countries to adopt stricter fiscal rules. In order to support budget decisions and fiscal policy choices on a strictly technical level, Independent Fiscal Institutions have often been set up in Europe. The present study aims to develop a comparative analysis of Independent Fiscal Institutions in order to better understand the role given to these public bodies in different countries. The effectiveness of so-called “fiscal watchdogs” depends on their independence and the reputation they are able to build. They are or become strong if their creation follows the path of the country’s constitutional traditions and there is compatibility with the specific political context. Taking into particular consideration some experiences (mostly European, the paper discusses the connections between introducing an Independent Fiscal Institution and reinforcing the activities of public policy evaluation, especially in Parliaments. The development of a culture of evaluation could in fact better ensure the accountability of Government, allowing legislative Assemblies to perform a more efficient oversight on all public policies, among which the most important is considered the fiscal one.

  15. A Comparative Analysis on Mining Frequent Itemsets

    Directory of Open Access Journals (Sweden)

    D.Kerana Hanirex

    2012-12-01

    Full Text Available Research on mining frequent itemsets is one of ` the emerging task in data mining.The purchasing of one product when another product is purchased represents an association rule. Association rules are useful for analyzing the customer behavior. It takes an important part in shopping basket data analysis, clustering. The FP-Growth and Apriori algorithm is the basic algorithm for mining association rules. This paper presents an efficient algorithm for mining frequent itemsets using Two Dimensional Transactions Reduction(TDTR approach which reduces the original database(D transactions to the reduced data base transactions D1 based on the min_sup count. Then for each item it finds the number of transactions that the item present and hence find the largest frequent itemset using the two dimensional approach. Using the largest item set property ,it finds the subset of frequent item sets. Thus TDTR approach reduces the number of scans in the database and hence improve the efficiency & accuracy by finding the number of association rules and reduces time to find the rules.This proposed approach compares the efficiency with traditional Apriori and FP-Growth algorithm.

  16. Comparative analysis of safety related site characteristics

    International Nuclear Information System (INIS)

    This document presents a comparative analysis of site characteristics related to long-term safety for the two candidate sites for a final repository for spent nuclear fuel in Forsmark (municipality of Oesthammar) and in Laxemar (municipality of Oskarshamn) from the point of view of site selection. The analyses are based on the updated site descriptions of Forsmark /SKB 2008a/ and Laxemar /SKB 2009a/, together with associated updated repository layouts and designs /SKB 2008b and SKB 2009b/. The basis for the comparison is thus two equally and thoroughly assessed sites. However, the analyses presented here are focussed on differences between the sites rather than evaluating them in absolute terms. The document serves as a basis for the site selection, from the perspective of long-term safety, in SKB's application for a final repository. A full evaluation of safety is made for a repository at the selected site in the safety assessment SR-Site /SKB 2011/, referred to as SR-Site main report in the following

  17. Comparative analysis of safety related site characteristics

    Energy Technology Data Exchange (ETDEWEB)

    Andersson, Johan (ed.)

    2010-12-15

    This document presents a comparative analysis of site characteristics related to long-term safety for the two candidate sites for a final repository for spent nuclear fuel in Forsmark (municipality of Oesthammar) and in Laxemar (municipality of Oskarshamn) from the point of view of site selection. The analyses are based on the updated site descriptions of Forsmark /SKB 2008a/ and Laxemar /SKB 2009a/, together with associated updated repository layouts and designs /SKB 2008b and SKB 2009b/. The basis for the comparison is thus two equally and thoroughly assessed sites. However, the analyses presented here are focussed on differences between the sites rather than evaluating them in absolute terms. The document serves as a basis for the site selection, from the perspective of long-term safety, in SKB's application for a final repository. A full evaluation of safety is made for a repository at the selected site in the safety assessment SR-Site /SKB 2011/, referred to as SR-Site main report in the following

  18. What type of online sales promotion do airline users prefer? Analysis of the moderating role of users??? online experience level

    OpenAIRE

    Crespo-Almendros, Esmeralda; Barrio-Garc??a, Salvador del; Alc??ntara-Pilar, Juan Miguel

    2015-01-01

    The aim of the present research is to assess which type of online promotional incentive (monetary or non-monetary) is the most effective at achieving purchase intention for airline tickets, depending on the user???s level of Internet experience (characterized as novice, moderate, or expert user). A Univariate General Linear Model is conducted, using data obtained from an experimental design with two levels: monetary online sales promotion and non-monetary online sales promotion. The findings ...

  19. Wisdom of the Crowd or Wisdom of a Few? An Analysis of Users' Content Generation

    CERN Document Server

    Baeza-Yates, Ricardo

    2016-01-01

    In this paper we analyze how user generated content (UGC) is created, challenging the well known {\\it wisdom of crowds} concept. Although it is known that user activity in most settings follow a power law, that is, few people do a lot, while most do nothing, there are few studies that characterize well this activity. In our analysis of datasets from two different social networks, Facebook and Twitter, we find that a small percentage of active users and much less of all users represent 50\\% of the UGC. We also analyze the dynamic behavior of the generation of this content to find that the set of most active users is quite stable in time. Moreover, we study the social graph, finding that those active users are highly connected among them. This implies that most of the wisdom comes from a few users, challenging the independence assumption needed to have a wisdom of crowds. We also address the content that is never seen by any people, which we call digital desert, that challenges the assumption that the content o...

  20. A Methodology for Evaluating User Perceptions of the Delivery of ICT Services: a comparative study of six UK local authorities

    Directory of Open Access Journals (Sweden)

    Les Worrall

    2000-11-01

    Full Text Available Evaluating and managing the effective delivery of ICT services is an issue that has been brought into sharper relief recently. This has been particularly prevalent in the UK public sector where the growing emphasis on formalised client-contractor relationships, outsourcing and benchmarking (both between local authorities and between local authorities and private sector organisations has meant that the definition of service standards and agreeing performance criteria has attracted considerable practitioner attention. This research is based on 295 interviews conducted in six UK local authorities. The investigation used both gap analysis and perceptual mapping techniques to develop an understanding of the aspects of ICT service delivery that users' value most in conjunction with an assessment of how well they perceive their ICT department is performing on these criteria. The paper exposes considerable differences in the relative performance of the six local authorities from both the gap analysis and the perceptual mapping elements of the investigation. The methodology is shown to provide an effective way of identifying key performance issues from the user perspective and benchmarking service performance across organisations.

  1. Comparative Analysis of Various Cloud Technologies

    Directory of Open Access Journals (Sweden)

    akanksha garg

    2012-01-01

    Full Text Available

    With the increasing prevalence and demand of large scale cloud computing environment, a researcher has to draw more attention towards the services provided by the CLOUD. As the access to the server is increasing, centralized and distributed computing architecture will produce bottlenecks data which affect the quality of cloud computing services and bring the huge support to users. In this paper we are going to propose certain vital aspects such as memory utilization, storage capacity to check the efficiency and performance of various clouds in cloud computing environment. This is based upon the static data. The proposed mechanism enables users to access memories in various systems depending on the predefined criteria. Selection method for accessing the memory of a resource is properly introduced in this paper. Our evaluation results show that the aggregation of various clouds is effective in indicating the better efficiency and also to reduce network traffic sent over cloud networks.

  2. Understanding users

    DEFF Research Database (Denmark)

    Johannsen, Carl Gustav Viggo

    Segmentation of users can help libraries in the process of understanding user similarities and differences. Segmentation can also form the basis for selecting segments of target users and for developing tailored services for specific target segments. Several approaches and techniques have been te...... segmentation project using computer-generated clusters. Compared to traditional marketing texts, this article also tries to identify user segments or images or metaphors by the library profession itself.......Segmentation of users can help libraries in the process of understanding user similarities and differences. Segmentation can also form the basis for selecting segments of target users and for developing tailored services for specific target segments. Several approaches and techniques have been...... tested in library contexts and the aim of this article is to identify the main approaches and to discuss their perspectives, including their strenghts and weaknesses in, especially, public library contexts. The purpose is also to prsent and discuss the results of a recent - 2014 - Danish library user...

  3. Exploiting Formal Concept Analysis in a Customizing Recommendation for New User and Gray Sheep Problems

    Science.gov (United States)

    Li, Xiaohui; Murata, Tomohiro

    Recommender systems are becoming an indispensable application and re-shaping the world in e-commerce scopes. This paper reviews the major problems in the existing recommender systems and presents a tracking recommendation approach based on information of user's behavior and two-level property of items. A new recommendation model based the synergistic use of knowledge from repository, which includes user's behavior, and items property was constructed and utilizes the Formal Concept Analysis (FCA) mapping to guide a personalized recommendation for user. We simulate a prototype recommender system that can make the quality recommendation by tracking user's behavior for implementing the proposed approach and testing its performance. Experiments using two datasets show our strategy was more robust against the drawbacks and preponderate over traditional recommendation approaches in cold-start conditions.

  4. Empirical analysis of web-based user-object bipartite networks

    CERN Document Server

    Shang, Mingsheng; Zhang, Yi-Cheng; Zhou, Tao

    2009-01-01

    Understanding the structure and evolution of web-based user-object networks is a significant task since they play a crucial role in e-commerce nowadays. This Letter reports the empirical analysis on two large-scale web sites, audioscrobbler.com and del.icio.us, where users are connected with music groups and bookmarks, respectively. The degree distributions and degree-degree correlations for both users and objects are reported. We propose a new index, named collaborative clustering coefficient, to quantify the clustering behavior based on the collaborative selection. Accordingly, the clustering properties and clustering-degree correlations are investigated. We report some novel phenomena well characterizing the selection mechanism of web users and outline the relevance of these phenomena to the information recommendation problem.

  5. Empirical analysis of web-based user-object bipartite networks

    Science.gov (United States)

    Shang, Ming-Sheng; Lü, Linyuan; Zhang, Yi-Cheng; Zhou, Tao

    2010-05-01

    Understanding the structure and evolution of web-based user-object networks is a significant task since they play a crucial role in e-commerce nowadays. This letter reports the empirical analysis on two large-scale web sites, audioscrobbler.com and del.icio.us, where users are connected with music groups and bookmarks, respectively. The degree distributions and degree-degree correlations for both users and objects are reported. We propose a new index, named collaborative similarity, to quantify the diversity of tastes based on the collaborative selection. Accordingly, the correlation between degree and selection diversity is investigated. We report some novel phenomena well characterizing the selection mechanism of web users and outline the relevance of these phenomena to the information recommendation problem.

  6. CULTURE AND SOCIAL MEDIA USAGE: ANALYSIS OF JAPANESE TWITTER USERS

    Directory of Open Access Journals (Sweden)

    Adam Acar

    2013-06-01

    Full Text Available Twitter, one of the most popular microblogging tools, has been used extensively all around the world. However, up to date, no study has addressed how culture influences the use of this communication platform. In order to close the literature gap and promote cross-cultural understandings, this paper content analyzed 4,000 tweets from 200 college students in Japan and the USA. The results showed that Japanese college students post more self-related messages and ask fewer questions compared to American college students. It was also found that tweets that refer to TV are more common in Japan, whereas sports and news tweets stand out in the USA. The evidence from this study suggests that there is a subtle and complicated relationship between culture and Twitter use.

  7. Textbooks in transitional countries: Towards a methodology for comparative analysis

    Directory of Open Access Journals (Sweden)

    Miha Kova?

    2004-01-01

    Full Text Available In its first part, the paper analyses the ambiguous nature of the book as a medium: its physical production and its distribution to the end user takes place on a market basis; on the other hand, its content is predominantly consumed in a sector that was at least in the continental Europe traditionally considered as public and non-profit making. This ambiguous nature of the book and with it the impact of the market on the organization of knowledge in book format remains a dark spot in contemporary book research. On the other hand, textbooks are considered as ephemera both in contemporary education and book studies. Therefore, research on textbooks publishing models could be considered as a blind-spot of contemporary social studies. As a consequence, in the majority of European countries, textbook publishing and the organization of the textbook market are considered as self-evident. Throughout a comparative analysis of textbook publishing models in small transitional and developed countries, the paper points out that this self-evident organization of the textbook market is always culturally determined. In its final part, the paper compares different models of textbook publishing and outlines the scenarios for the development of the Slovene textbook market.

  8. AUDITOR ROTATION - A CRITICAL AND COMPARATIVE ANALYSIS

    Directory of Open Access Journals (Sweden)

    Mocanu Mihaela

    2011-12-01

    Full Text Available The present paper starts out from the challenge regarding auditor tenure launched in 2010 by the Green Paper of the European Commission Audit Policy: Lessons from the Crisis. According to this document, the European Commission speaks both in favor of the mandatory rotation of the audit firm, and in favor of the mandatory rotation of audit partners. Rotation is considered a solution to mitigate threats to independence generated by familiarity, intimidation and self-interest in the context of a long-term audit-client relationship. At international level, there are several studies on auditor rotation, both empirical (e.g. Lu and Sivaramakrishnan, 2009, Li, 2010, Kaplan and Mauldin, 2008, Jackson et al., 2008 and normative in nature (e.g. Marten et al., 2007, Muller, 2006 and Gelter, 2004. The objective of the present paper is to perform a critical and comparative analysis of the regulations on internal and external rotation in force at international level, in the European Union and in the United States of America. Moreover, arguments both in favor and against mandatory rotation are brought into discussion. With regard to the research design, the paper has a normative approach. The main findings are first of all that by comparison, all regulatory authorities require internal rotation at least in the case of public interest entities, while the external rotation is not in the focus of the regulators. In general, the most strict and detailed requirements are those issued by the Securities and Exchange Commission from the United States of America. Second of all, in favor of mandatory rotation speaks the fact that the auditor becomes less resilient in case of divergence of opinions between him and company management, less stimulated to follow his own interest, and more scrupulous in conducting the audit. However, mandatory rotation may also have negative consequences, thus the debate on the opportunity of this regulatory measure remains open-ended.

  9. Premo and Kansei: A Comparative Analysis

    Directory of Open Access Journals (Sweden)

    Anitawati Mohd Lokman

    2013-04-01

    Full Text Available Kansei Engineering is a technology that enables incorporation of human emotion in design requirements. It has in its perspective that Kansei is unique for different domain and unique for different target user group, and use mainly a verbal measurement instruments in its methodology. The technology is seen to have little shortcoming when there is a need to build universal design for universal target user. It will involve complexity when handling semantics since people do not speak the same language across the planet. Hence, a non-verbal emotion measurement tool is assumed to enhance the capability of K.E. in managing universal Kansei. This study aims to investigate the possibility of integrating PrEmo, a non-verbal self-reporting tool which were developed based on studies across culture and demographical setting into Kansei Engineering. The objectives are to analyze the similarities and differences of Kansei structure resulted by two different measurement tools, non-verbal (PrEmo and verbal (Kansei checklist self-reporting instrument, to provide hypothetical evidence of the feasibility of PrEmo as a tool to measure Kansei. 10 websites with significant visual design differences were used as stimuli in the evaluation procedure involving 30 respondents, who provided their Kansei responses using both instruments. The result has shown that the Kansei structure by both instruments are mostly similar, thus provide hypothetical evidence that PrEmo could be used as non-verbal self-reporting instrument to measure Kansei. The findings provide insights into future research for integration of universal Kansei.

  10. NFAP: the nonlinear finite element analysis program. Users manual; Version 1977

    International Nuclear Information System (INIS)

    A brief outline of the analysis capability together with the input instructions are given for a nonlinear finite element analysis program called NFAP, which is an extended version of the NONSAP Program. Extensions include additional element types, material models and several user's features as further described in the report. Similar to NONSAP, the NFAP program can be used for conducting linear or nonlinear analysis of various structures under static or dynamic loadings. Nonlinearities involve both nonlinear materials and large deformations

  11. Neutron activation analysis at the Californium User Facility for Neutron Science

    International Nuclear Information System (INIS)

    The Californium User Facility (CUF) for Neutron Science has been established to provide 252Cf-based neutron irradiation services and research capabilities including neutron activation analysis (NAA). A major advantage of the CUF is its accessibility and controlled experimental conditions compared with those of a reactor environment The CUF maintains the world's largest inventory of compact 252Cf neutron sources. Neutron source intensities of ≤ 1011 neutrons/s are available for irradiations within a contamination-free hot cell, capable of providing thermal and fast neutron fluxes exceeding 108 cm-2 s-1 at the sample. Total flux of ≥109 cm-2 s-1 is feasible for large-volume irradiation rabbits within the 252Cf storage pool. Neutron and gamma transport calculations have been performed using the Monte Carlo transport code MCNP to estimate irradiation fluxes available for sample activation within the hot cell and storage pool and to design and optimize a prompt gamma NAA (PGNAA) configuration for large sample volumes. Confirmatory NAA irradiations have been performed within the pool. Gamma spectroscopy capabilities including PGNAA are being established within the CUF for sample analysis

  12. A comparative analysis of the statistical properties of large mobile phone calling networks

    CERN Document Server

    Li, Ming-Xia; Xie, Wen-Jie; Miccichè, Salvatore; Tumminello, Michele; Zhou, Wei-Xing; Mantegna, Rosario N

    2014-01-01

    Mobile phone calling is one of the most widely used communication methods in modern society. The records of calls among mobile phone users provide us a valuable proxy for the understanding of human communication patterns embedded in social networks. Mobile phone users call each other forming a directed calling network. If only reciprocal calls are considered, we obtain an undirected mutual calling network. The preferential communication behavior between two connected users can be statistically tested and it results in two Bonferroni networks with statistically validated edges. We perform a comparative analysis of the statistical properties of four networks, which are constructed from the calling records of more than nine million individuals in Shanghai over a period of 110 days. We find that these networks share many common structural properties and also exhibit idiosyncratic features when compared with previously studied large mobile calling networks. The empirical findings provide us an intriguing picture o...

  13. Exploratory analysis of user-generated photos and indicators that influence their appeal

    Directory of Open Access Journals (Sweden)

    Urban Sedlar

    2014-07-01

    Full Text Available In this paper we analyze if simple indicators related to photo quality (brightness, sharpness, color palette and established content detection techniques (face detection can predict the success of photos in obtaining more “likes” from other users of photo-sharing social networks. This provides a unique look into the habits of users of such networks. The analysis was performed on 394.000 images downloaded from the social photo-sharing site Instagram, paired with a de-identified dataset of user liking activity, provided by a seller of a social-media mobile app. Two user groups were analyzed: all users in a two month period (N = 122.260 and a highly selective group (N = 3.982 of users that only like <10% of what they view. No correlation was found with any of the indicators using the whole (non-selective population, likely due to their bias towards earning virtual currency in exchange for liking. However, in selective group, small positive correlation was found between like ratio and image sharpness (r=0.09, p<0.0001 and small negative correlation between like ratio and the number of faces (r=-0.10, p<0.0001.

  14. QoS Perceived by Users of Ubiquitous UMTS: Compositional Models and Thorough Analysis

    Directory of Open Access Journals (Sweden)

    Andrea Bondavalli

    2009-09-01

    Full Text Available .This paper provides a QoS analysis of a dynamic, ubiquitous UMTS network scenario in the automotive context identi_ed in the ongoing EC HIDENETS project. The scenario comprises different types of mobile users, applications, traffic conditions, and outage events reducing the available network resources. Adopting a compositional modeling approach based on Stochastic Activity Networks (SAN formalism, we analyze the Quality of Service (QoS both from the users' perspective and from the mobile operator's one. The classical QoS analysis is enhanced by taking into account the congestion both caused by the outage events and by the varying traffic conditions. The impact of users' mobility on the selected QoS indicators is further investigated combining the SAN modelling approach with an ad-hoc mobility simulator, which also allows to re_ne the model representing the UMTS network behavior.

  15. Enabling Semantic Analysis of User Browsing Patterns in the Web of Data

    CERN Document Server

    Hoxha, Julia; Agarwal, Sudhir

    2012-01-01

    A useful step towards better interpretation and analysis of the usage patterns is to formalize the semantics of the resources that users are accessing in the Web. We focus on this problem and present an approach for the semantic formalization of usage logs, which lays the basis for eective techniques of querying expressive usage patterns. We also present a query answering approach, which is useful to nd in the logs expressive patterns of usage behavior via formulation of semantic and temporal-based constraints. We have processed over 30 thousand user browsing sessions extracted from usage logs of DBPedia and Semantic Web Dog Food. All these events are formalized semantically using respective domain ontologies and RDF representations of the Web resources being accessed. We show the eectiveness of our approach through experimental results, providing in this way an exploratory analysis of the way users browse theWeb of Data.

  16. MANAGEMENT AND COMPARATIVE ANALYSIS OF DATASET ENSEMBLES

    Energy Technology Data Exchange (ETDEWEB)

    Geveci, Berk [Senior Director, Scientific Computing

    2010-05-17

    The primary Phase I technical objective was to develop a prototype that demonstrates the functionality of all components required for an end-to-end meta-data management and comparative visualization system.

  17. Comparative Analysis of Competitive Strategy Implementation

    OpenAIRE

    Maina A. S. Waweru

    2011-01-01

    This paper presents research findings on Competitive Strategy Implementation which compared the levels of strategy implementation achieved by different generic strategy groups, comprising firms inclined towards low cost leadership, differentiation or dual strategic advantage.  The study sought to determine the preferences for use of implementation armaments and compared how such armaments related to the level of implementation achieved.   Respondents comprised 71 top executives from 59 compan...

  18. Comparative Analysis of Competitive Strategy Implementation

    OpenAIRE

    Maina A. S. Waweru

    2011-01-01

    This paper presents research findings on Competitive Strategy Implementation which compared the levels of strategy implementation achieved by different generic strategy groups, comprising firms inclined towards low cost leadership, differentiation or dual strategic advantage. The study sought to determine the preferences for use of implementation armaments and compared how such armaments related to the level of implementation achieved. Respondents comprised 71 top executives from 59 companies...

  19. A comparative study of descriptions and value added of bibliographic records through MARC, DC and MODS: From the viewpoints of the users

    Directory of Open Access Journals (Sweden)

    Huei-Chu Chang

    2014-04-01

    Full Text Available The purpose of this study is to understand which bibliographic data are the core elements of the user’s queries? What users’ viewpoints about resource descriptions using different metadata standards? What kinds of value-added items are the users’ favorite when they conduct a bibliographic search? What are users’ viewpoints about bibliographic records integrated with the Digital Archival and Institutional Repository resources through metadata interoperability methods? This research adopted experiments, observation and interviews. The sample subjects are drawn from 14 students of The Graduate Institute of Library and Information Science and College of Agriculture and Natural Resources. First of all, the researcher displayed the bibliographic records using original MARC from the library. Secondly, users compared the images of OPAC from the library with the format of DC and MODS transformed through the MarcEdit software. Additionally, the researcher conducted interviews to understand users’ viewpoints about using three metadata schemas to describe the same book. Finally, the researcher asked the degree of users’ satisfaction about using bibliographic records alone and bibliographic records integrated with the Digital Archival and Institutional Repository resources. The findings suggest that libraries could provide more value-added and comprehensive services of bibliographic records and information retrieval, in order for all kinds of resources to be fully utilized, which helps to meet the users’ information needs.

  20. The technique of creation of simulation systems with experiments design and analysis controlled by user's questions

    OpenAIRE

    G. Magariu

    1999-01-01

    The article describes a technique of creation of simulation systems with elements of intellectual handle of experiments initiation and analysis results of experiments. The technique proposed is based on user question analyzing, determination of necessary simulation experiments for the question answering, initiation of these experiments running and obtaining the answer on the basis of experiments results.

  1. Digital Avionics Information System (DAIS): Training Requirements Analysis Model Users Guide. Final Report.

    Science.gov (United States)

    Czuchry, Andrew J.; And Others

    This user's guide describes the functions, logical operations and subroutines, input data requirements, and available outputs of the Training Requirements Analysis Model (TRAMOD), a computerized analytical life cycle cost modeling system for use in the early stages of system design. Operable in a stand-alone mode, TRAMOD can be used for the…

  2. Inventory of activation analysis facilities available in the European Community to Industrial users

    International Nuclear Information System (INIS)

    This inventory includes lists of activation equipment produced in the European Community, facilities available for industrial users and activation laboratories existing in the European companies. The aim of this inventory is to provide all information that may be useful, to companies interested in activation analysis, as well as to give an idea on existing routine applications and on the European market in facilities

  3. WT-ERA user's manual. Program for Wind Turbine. Extreme Response Analysis

    International Nuclear Information System (INIS)

    Since the IEC61400-1 (2005) edition 3 standard has been issued the statistical extrapolation of responses for the ultimate strength analysis is part of the design of wind turbines. At ECN a software tool WT-ERA is developed to facilitate statistical extrapolation for the wind turbine industry. This report is a user's manual for the WT-ERA software.

  4. User-Centric Approach for Benchmark RDF Data Generator in Big Data Performance Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Purohit, Sumit; Paulson, Patrick R.; Rodriguez, Luke R.

    2016-02-05

    This research focuses on user-centric approach of building such tools and proposes a flexible, extensible, and easy to use framework to support performance analysis of Big Data systems. Finally, case studies from two different domains are presented to validate the framework.

  5. Comparative analysis of seismic risk assessment methodology

    International Nuclear Information System (INIS)

    SRA methodologies are separated into SPSA and SMM. SPSA methodology that has been widely used for seismic risk analysis has two kinds of methodologies such as Zion method and SSMRP method. SPSA methodology is suitable to interfacing with the analysis of internal event. However, the results of SPSA have uncertainties because of uncertainties in seismic hazard analysis and subjective judgement. Zion method specially developed for commercial use is less expensive and less time consuming but more uncertain than SSMRP method, since the former performs the fragility analysis less in detail than the latter. SMM is impossible to interface with the analysis of internal event but the uncertainties that are occurred during seismic hazard analysis is reduced because of the screening using RLE (review level earthquake). Therefore, if SPSA-based SMM methodology is chosen to be developed, the results of SRA will be more reliable and it requires low costs and time. In addition, the new methodology will require the development of a new evaluating code for SRA. (Author) 26 refs., 25 figs., 16 tabs

  6. The Immersive Virtual Reality Experience: A Typology of Users Revealed Through Multiple Correspondence Analysis Combined with Cluster Analysis Technique.

    Science.gov (United States)

    Rosa, Pedro J; Morais, Diogo; Gamito, Pedro; Oliveira, Jorge; Saraiva, Tomaz

    2016-03-01

    Immersive virtual reality is thought to be advantageous by leading to higher levels of presence. However, and despite users getting actively involved in immersive three-dimensional virtual environments that incorporate sound and motion, there are individual factors, such as age, video game knowledge, and the predisposition to immersion, that may be associated with the quality of virtual reality experience. Moreover, one particular concern for users engaged in immersive virtual reality environments (VREs) is the possibility of side effects, such as cybersickness. The literature suggests that at least 60% of virtual reality users report having felt symptoms of cybersickness, which reduces the quality of the virtual reality experience. The aim of this study was thus to profile the right user to be involved in a VRE through head-mounted display. To examine which user characteristics are associated with the most effective virtual reality experience (lower cybersickness), a multiple correspondence analysis combined with cluster analysis technique was performed. Results revealed three distinct profiles, showing that the PC gamer profile is more associated with higher levels of virtual reality effectiveness, that is, higher predisposition to be immersed and reduced cybersickness symptoms in the VRE than console gamer and nongamer. These findings can be a useful orientation in clinical practice and future research as they help identify which users are more predisposed to benefit from immersive VREs. PMID:26985781

  7. A novel R-package graphic user interface for the analysis of metabonomic profiles

    Directory of Open Access Journals (Sweden)

    Villa Palmira

    2009-10-01

    Full Text Available Abstract Background Analysis of the plethora of metabolites found in the NMR spectra of biological fluids or tissues requires data complexity to be simplified. We present a graphical user interface (GUI for NMR-based metabonomic analysis. The "Metabonomic Package" has been developed for metabonomics research as open-source software and uses the R statistical libraries. Results The package offers the following options: Raw 1-dimensional spectra processing: phase, baseline correction and normalization. Importing processed spectra. Including/excluding spectral ranges, optional binning and bucketing, detection and alignment of peaks. Sorting of metabolites based on their ability to discriminate, metabolite selection, and outlier identification. Multivariate unsupervised analysis: principal components analysis (PCA. Multivariate supervised analysis: partial least squares (PLS, linear discriminant analysis (LDA, k-nearest neighbor classification. Neural networks. Visualization and overlapping of spectra. Plot values of the chemical shift position for different samples. Furthermore, the "Metabonomic" GUI includes a console to enable other kinds of analyses and to take advantage of all R statistical tools. Conclusion We made complex multivariate analysis user-friendly for both experienced and novice users, which could help to expand the use of NMR-based metabonomics.

  8. Advanced Techniques in Web Intelligence-2 Web User Browsing Behaviour and Preference Analysis

    CERN Document Server

    Palade, Vasile; Jain, Lakhmi

    2013-01-01

    This research volume focuses on analyzing the web user browsing behaviour and preferences in traditional web-based environments, social  networks and web 2.0 applications,  by using advanced  techniques in data acquisition, data processing, pattern extraction and  cognitive science for modeling the human actions.  The book is directed to  graduate students, researchers/scientists and engineers  interested in updating their knowledge with the recent trends in web user analysis, for developing the next generation of web-based systems and applications.

  9. Code development and analysis program. RELAP4/MOD7 (Version 2): user's manual

    Energy Technology Data Exchange (ETDEWEB)

    None

    1978-08-01

    This manual describes RELAP4/MOD7 (Version 2), which is the latest version of the RELAP4 LPWR blowdown code. Version 2 is a precursor to the final version of RELAP4/MOD7, which will address LPWR LOCA analysis in integral fashion (i.e., blowdown, refill, and reflood in continuous fashion). This manual describes the new code models and provides application information required to utilize the code. It must be used in conjunction with the RELAP4/MOD5 User's Manual (ANCR-NUREG-1335, dated September 1976), and the RELAP4/MOD6 User's Manual (CDAP-TR-003, dated January 1978).

  10. Tool for Turbine Engine Closed-Loop Transient Analysis (TTECTrA) Users' Guide

    Science.gov (United States)

    Csank, Jeffrey T.; Zinnecker, Alicia M.

    2014-01-01

    The tool for turbine engine closed-loop transient analysis (TTECTrA) is a semi-automated control design tool for subsonic aircraft engine simulations. At a specific flight condition, TTECTrA produces a basic controller designed to meet user-defined goals and containing only the fundamental limiters that affect the transient performance of the engine. The purpose of this tool is to provide the user a preliminary estimate of the transient performance of an engine model without the need to design a full nonlinear controller.

  11. Comparative study of containment analysis codes

    International Nuclear Information System (INIS)

    This paper considers the thermal hydraulic behavior of the containment system during the early phase of a Loss Of Coolant Accident event in an AP600 reactor. A comparative study of the containment response is presented using tier codes ARIANNA-2 and RELAP5/Mod2. The analytical models used in the two codes are described along with their main assumptions and limitations. (authors)

  12. Wellness Model of Supervision: A Comparative Analysis

    Science.gov (United States)

    Lenz, A. Stephen; Sangganjanavanich, Varunee Faii; Balkin, Richard S.; Oliver, Marvarene; Smith, Robert L.

    2012-01-01

    This quasi-experimental study compared the effectiveness of the Wellness Model of Supervision (WELMS; Lenz & Smith, 2010) with alternative supervision models for developing wellness constructs, total personal wellness, and helping skills among counselors-in-training. Participants were 32 master's-level counseling students completing their…

  13. A Comparative Analysis of Recent Trends

    OpenAIRE

    Ulku, Hulya; Muzi, Silvia

    2015-01-01

    This paper analyzes recent trends in Swedens labor market regulations in relation to comparator economies and examines the relationship between labor market regulations and outcomes. The paper finds that the Swedish labor market responded more rapidly to the recent global financial crisis than the majority of the European Union economies, which helped Sweden to recover quickly. Swedens hi...

  14. Delight2 Daylighting Analysis in Energy Plus: Integration and Preliminary User Results

    Energy Technology Data Exchange (ETDEWEB)

    Carroll, William L.; Hitchcock, Robert J.

    2005-04-26

    DElight is a simulation engine for daylight and electric lighting system analysis in buildings. DElight calculates interior illuminance levels from daylight, and the subsequent contribution required from electric lighting to meet a desired interior illuminance. DElight has been specifically designed to integrate with building thermal simulation tools. This paper updates the DElight capability set, the status of integration into the simulation tool EnergyPlus, and describes a sample analysis of a simple model from the user perspective.

  15. Comparative Distributions of Hazard Modeling Analysis

    Directory of Open Access Journals (Sweden)

    Rana Abdul Wajid

    2006-07-01

    Full Text Available In this paper we present the comparison among the distributions used in hazard analysis. Simulation technique has been used to study the behavior of hazard distribution modules. The fundamentals of Hazard issues are discussed using failure criteria. We present the flexibility of the hazard modeling distribution that approaches to different distributions.

  16. E-learning interventions are comparable to user's manual in a randomized trial of training strategies for the AGREE II

    Directory of Open Access Journals (Sweden)

    Durocher Lisa D

    2011-07-01

    Full Text Available Abstract Background Practice guidelines (PGs are systematically developed statements intended to assist in patient and practitioner decisions. The AGREE II is the revised tool for PG development, reporting, and evaluation, comprised of 23 items, two global rating scores, and a new User's Manual. In this study, we sought to develop, execute, and evaluate the impact of two internet interventions designed to accelerate the capacity of stakeholders to use the AGREE II. Methods Participants were randomized to one of three training conditions. 'Tutorial'--participants proceeded through the online tutorial with a virtual coach and reviewed a PDF copy of the AGREE II. 'Tutorial + Practice Exercise'--in addition to the Tutorial, participants also appraised a 'practice' PG. For the practice PG appraisal, participants received feedback on how their scores compared to expert norms and formative feedback if scores fell outside the predefined range. 'AGREE II User's Manual PDF (control condition'--participants reviewed a PDF copy of the AGREE II only. All participants evaluated a test PG using the AGREE II. Outcomes of interest were learners' performance, satisfaction, self-efficacy, mental effort, time-on-task, and perceptions of AGREE II. Results No differences emerged between training conditions on any of the outcome measures. Conclusions We believe these results can be explained by better than anticipated performance of the AGREE II PDF materials (control condition or the participants' level of health methodology and PG experience rather than the failure of the online training interventions. Some data suggest the online tools may be useful for trainees new to this field; however, this requires further study.

  17. AITRAC: Augmented Interactive Transient Radiation Analysis by Computer. User's information manual

    International Nuclear Information System (INIS)

    AITRAC is a program designed for on-line, interactive, DC, and transient analysis of electronic circuits. The program solves linear and nonlinear simultaneous equations which characterize the mathematical models used to predict circuit response. The program features 100 external node--200 branch capability; conversional, free-format input language; built-in junction, FET, MOS, and switch models; sparse matrix algorithm with extended-precision H matrix and T vector calculations, for fast and accurate execution; linear transconductances: beta, GM, MU, ZM; accurate and fast radiation effects analysis; special interface for user-defined equations; selective control of multiple outputs; graphical outputs in wide and narrow formats; and on-line parameter modification capability. The user describes the problem by entering the circuit topology and part parameters. The program then automatically generates and solves the circuit equations, providing the user with printed or plotted output. The circuit topology and/or part values may then be changed by the user, and a new analysis, requested. Circuit descriptions may be saved on disk files for storage and later use. The program contains built-in standard models for resistors, voltage and current sources, capacitors, inductors including mutual couplings, switches, junction diodes and transistors, FETS, and MOS devices. Nonstandard models may be constructed from standard models or by using the special equations interface. Time functions may be described by straight-line segments or by sine, damped sine, and exponential functions. 42 figures, 1 table

  18. Aggregate Characterization of User Behavior in Twitter and Analysis of the Retweet Graph

    CERN Document Server

    Bild, David R; Dick, Robert P; Mao, Z Morley; Wallach, Dan S

    2014-01-01

    Most previous analysis of Twitter user behavior is focused on individual information cascades and the social followers graph. We instead study aggregate user behavior and the retweet graph with a focus on quantitative descriptions. We find that the lifetime tweet distribution is a type-II discrete Weibull stemming from a power law hazard function, the tweet rate distribution, although asymptotically power law, exhibits a lognormal cutoff over finite sample intervals, and the inter-tweet interval distribution is power law with exponential cutoff. The retweet graph is small-world and scale-free, like the social graph, but is less disassortative and has much stronger clustering. These differences are consistent with it better capturing the real-world social relationships of and trust between users. Beyond just understanding and modeling human communication patterns and social networks, applications for alternative, decentralized microblogging systems-both predicting real-word performance and detecting spam-are d...

  19. Comparative Analysis of Treatment Costs in EUROHOPE.

    Science.gov (United States)

    Iversen, Tor; Aas, Eline; Rosenqvist, Gunnar; Häkkinen, Unto

    2015-12-01

    This study examines the challenges of estimating risk-adjusted treatment costs in international comparative research, specifically in the European Health Care Outcomes, Performance, and Efficiency (EuroHOPE) project. We describe the diverse format of resource data and challenges of converting these data into resource use indicators that allow meaningful cross-country comparisons. The three cost indicators developed in EuroHOPE are then described, discussed, and applied. We compare the risk-adjusted mean treatment costs of acute myocardial infarction for four of the seven countries in the EuroHOPE project, namely, Finland, Hungary, Norway, and Sweden. The outcome of the comparison depends on the time perspective as well as on the particular resource use indicator. We argue that these complementary indicators add to our understanding of the variation in resource use across countries. Copyright © 2015 John Wiley & Sons, Ltd. PMID:26633865

  20. Performance Analysis of New Binary User Codes for DS-CDMA Communication

    Science.gov (United States)

    Usha, Kamle; Jaya Sankar, Kottareddygari

    2016-03-01

    This paper analyzes new binary spreading codes through correlation properties and also presents their performance over additive white Gaussian noise (AWGN) channel. The proposed codes are constructed using gray and inverse gray codes. In this paper, a n-bit gray code appended by its n-bit inverse gray code to construct the 2n-length binary user codes are discussed. Like Walsh codes, these binary user codes are available in sizes of power of two and additionally code sets of length 6 and their even multiples are also available. The simple construction technique and generation of code sets of different sizes are the salient features of the proposed codes. Walsh codes and gold codes are considered for comparison in this paper as these are popularly used for synchronous and asynchronous multi user communications respectively. In the current work the auto and cross correlation properties of the proposed codes are compared with those of Walsh codes and gold codes. Performance of the proposed binary user codes for both synchronous and asynchronous direct sequence CDMA communication over AWGN channel is also discussed in this paper. The proposed binary user codes are found to be suitable for both synchronous and asynchronous DS-CDMA communication.

  1. DOA Estimation-a Comparative Analysis

    OpenAIRE

    Ayesha Naaz; Rameshwar Rao

    2014-01-01

    In this paper, the direction of arrival (DOA) angle estimation of signals impinging on 3- D array of sensors in cubical arrangement is studied. The results thus obtainedwere compared with the direction of arrivals obtained with a combination of two uniform square arrays which were considered in parallel to form a structure as cube. MUSIC algorithm (Multiple Signal Classification) was used to estimate the directions of arrival (DOA) of the signals .Also in this paper cubical array geometry for...

  2. Nigerian Power Sector: Comparative Analysis of Productivity

    OpenAIRE

    Iwuamadi ObiomaChidiebere; Dike Damian Obioma; Iwuchukwu UchechiChinwe

    2015-01-01

    Undoubtedly, power instability in the Nigerian Power Sector despite several mitigative measures by the government has created some chocks in the national socio-economic wheel of development. Unfortunately, the conceptual objective of the power reforms to remedy inadequate power generation capacity, inefficient usage of capacity, ineffective regulation and high technical losses is tardily being achieved. This research comparatively analyzed the rate of productivity change in Nigeria’s power...

  3. Comparative study on tea chemical analysis

    International Nuclear Information System (INIS)

    This paper describes the application of the instrumental analytical methods: neutron activation techniques, atomic absorption spectroscopy and flame emission spectroscopy, used to analyse some home-made teas, determining Na, K and Cl and comparing the results. This study verify whether the home-made teas used for rehydration of the children reach the composition recommended by WHO (World Health Organization). (author). 6 refs., 6 tabs

  4. Ultra-high resolution optical coherence tomography analysis of bull's eye maculopathy in chloroquine users

    Directory of Open Access Journals (Sweden)

    Celso Morita

    2014-06-01

    Full Text Available Purpose: Register and compare anatomical changes, structural and quantitative found in optical coherence tomography Stratus and Topcon 3D in chronic users of chloroquine. Methods: Five patients were diagnosed with toxic "bull's eye" maculopathy was submitted to macular optical coherence tomography examination (Stratus and Topcon 3D. Results: Both tools demonstrated an increase reflectivity of choriocapillaris unit just foveal retinal pigment epithelium atrophy. However, Topcon 3D provided to all patients better description of the line corresponding to the transition between inner and outer segments of photoreceptors. Using the possibility of assembling threedimensional images and subtraction selective retinal layers, we found a lesion with a target that reflects the greater thickness of retinal pigment epithelium in central and parafoveal region that is matched to preserve macular photoreceptors. Conclusion: it was observed better resolution and faster image capture by Topcon 3D than Stratus OCT, that provided more detailed analysis of the line corresponding to transition between outer and inner segment of photoreceptors in macular region. With Topcon 3D, it was possible to evaluate soundly the thickness of retinal pigment epithelium in central and parafoveal region that caused an increase reflectivity of choriocapillaris creating a image with a target unpublished before.

  5. Formal Model for Data Dependency Analysis between Controls and Actions of a Graphical User Interface

    Directory of Open Access Journals (Sweden)

    SKVORC, D.

    2012-02-01

    Full Text Available End-user development is an emerging computer science discipline that provides programming paradigms, techniques, and tools suitable for users not trained in software engineering. One of the techniques that allow ordinary computer users to develop their own applications without the need to learn a classic programming language is a GUI-level programming based on programming-by-demonstration. To build wizard-based tools that assist users in application development and to verify the correctness of user programs, a computer-supported method for GUI-level data dependency analysis is necessary. Therefore, formal model for GUI representation is needed. In this paper, we present a finite state machine for modeling the data dependencies between GUI controls and GUI actions. Furthermore, we present an algorithm for automatic construction of finite state machine for arbitrary GUI application. We show that proposed state aggregation scheme successfully manages state explosion in state machine construction algorithm, which makes the model applicable for applications with complex GUIs.

  6. Comparative analysis of plant oil based fuels

    Energy Technology Data Exchange (ETDEWEB)

    Ziejewski, M.; Goettler, H.J.; Haines, H.; Huong, C.

    1995-12-31

    This paper presents the evaluation results from the analysis of different blends of fuels using the 13-mode standard SAE testing method. Six high oleic safflower oil blends, six ester blends, six high oleic sunflower oil blends, and six sunflower oil blends were used in this portion of the investigation. Additionally, the results from the repeated 13-mode tests for all the 25/75% mixtures with a complete diesel fuel test before and after each alternative fuel are presented.

  7. Breastfeeding policy: a globally comparative analysis

    OpenAIRE

    Jody Heymann; Amy Raub; Alison Earle

    2013-01-01

    OBJECTIVE: To explore the extent to which national policies guaranteeing breastfeeding breaks to working women may facilitate breastfeeding. METHODS: An analysis was conducted of the number of countries that guarantee breastfeeding breaks, the daily number of hours guaranteed, and the duration of guarantees. To obtain current, detailed information on national policies, original legislation as well as secondary sources on 182 of the 193 Member States of the United Nations were examined. Regres...

  8. A Comparative Analysis on Mining Frequent Itemsets

    OpenAIRE

    D.Kerana Hanirex

    2012-01-01

    Research on mining frequent itemsets is one of ` the emerging task in data mining.The purchasing of one product when another product is purchased represents an association rule. Association rules are useful for analyzing the customer behavior. It takes an important part in shopping basket data analysis, clustering. The FP-Growth and Apriori algorithm is the basic algorithm for mining association rules. This paper presents an efficient algorithm for mining frequent itemsets using Two Dimens...

  9. Measuring Sustainability of Nations: a Comparative Analysis

    OpenAIRE

    Priscilla Altili; Pietro Zoppoli

    2011-01-01

    Indicators are widely used tools to measure the sustainability of a nation. The definition of a concept conditions strictly its measurement. Therefore, the definition of sustainable development will determine the appropriateness of the variables selected for its measurement. The first part of this paper explores why it is impossible, at the present time, to have a univocal definition and measurement of sustainable development. The second part is devoted to the analysis of a set of synthetic i...

  10. Transversal analysis of public policies on user fees exemptions in six West African countries

    Science.gov (United States)

    2012-01-01

    Background While more and more West African countries are implementing public user fees exemption policies, there is still little knowledge available on this topic. The long time required for scientific production, combined with the needs of decision-makers, led to the creation in 2010 of a project to support implementers in aggregating knowledge on their experiences. This article presents a transversal analysis of user fees exemption policies implemented in Benin, Burkina Faso, Mali, Niger, Togo and Senegal. Methods This was a multiple case study with several embedded levels of analysis. The cases were public user fees exemption policies selected by the participants because of their instructive value. The data used in the countries were taken from documentary analysis, interviews and questionnaires. The transversal analysis was based on a framework for studying five implementation components and five actors’ attitudes usually encountered in these policies. Results The analysis of the implementation components revealed: a majority of State financing; maintenance of centrally organized financing; a multiplicity of reimbursement methods; reimbursement delays and/or stock shortages; almost no implementation guides; a lack of support measures; communication plans that were rarely carried out, funded or renewed; health workers who were given general information but not details; poorly informed populations; almost no evaluation systems; ineffective and poorly funded coordination systems; low levels of community involvement; and incomplete referral-evacuation systems. With regard to actors’ attitudes, the analysis revealed: objectives that were appreciated by everyone; dissatisfaction with the implementation; specific tensions between healthcare providers and patients; overall satisfaction among patients, but still some problems; the perception that while the financial barrier has been removed, other barriers persist; occasionally a reorganization of practices, service rationing due to lack of reimbursement, and some overcharging or shifting of resources. Conclusions This transversal analysis confirms the need to assign a great deal of importance to the implementation of user fees exemption policies once these decisions have been taken. It also highlights some practices that suggest avenues of future research. PMID:23167598

  11. [Amaranth flour: characteristics, comparative analysis, application possibilities].

    Science.gov (United States)

    Zharkov, I M; Miroshnichenko, L A; Zviagin, A A; Bavykina, I A

    2014-01-01

    Amaranth flour--a product of amaranth seeds processing--is a valuable industrial raw material that has an unique chemical composition and may be used for nutrition of people suffering from intolerance to traditional cereals protein, including celiac disease patients. The research aim was to study the composition of amaranth flour of two types compared with semolina which is traditionally used for nutrition by Russian population, as well as to compare the composition of milk amaranth flour porridge with milk semolina porridge. The composition of amaranth whole-ground flour and amaranth flour of premium grade processed from amaranth seeds grown in Voronezh region has been researched. It is to be noted that protein content in amaranth flour was 10.8-24.3% higher than in semolina, and its biological value and NPU-coefficient were higher by 22.65 and 46.51% respectively; lysine score in amaranth flour protein of premium grade came up to 107.54%, and in semolina protein only 40.95%. The level of digestible carbohydrates, including starch, was lower in amaranth flour than in semolina by 2.79-12.85 and 4.76-15.85% respectively, while fiber content was 15.5-30 fold higher. Fat content in amaranth flour of premium grade was 2,4 fold lower than in whole-ground amaranth flour but it was 45% higher than in semolina. The main advantage of amaranth flour protein compared to wheat protein is the predominance of albumins and globulins and a minimal content of prolamines and alpha-gliadin complete absence. The specifics of chemical composition allow the amaranth flour to be recommended for being included into nutrition of both healthy children and adults and also celiac disease patients. PMID:25059059

  12. Radionuclides in sediments - a comparative analysis, 1981

    International Nuclear Information System (INIS)

    On behalf of the BMI (Federal German Ministry of the Interior), the BfG in 1981 again started an interlaboratory comparison (among 42 measuring points) on the topic of radionuclides in sediments. The study was intended to test the reliability of G?, G?/R? measurements in sedimentary samples under practical conditions. The comparative analyses again revealed a number of error sources, and errors could be corrected. This was achieved not least by a good cooperation among the participating laboratories who contributed a.o. very useful information and ideas. (orig./HP)

  13. Comparative analysis of some search engines

    OpenAIRE

    Taiwo O. Edosomwan; Joseph Edosomwan

    2010-01-01

    We compared the information retrieval performances of some popular search engines (namely, Google, Yahoo, AlltheWeb, Gigablast, Zworks and AltaVista and Bing/MSN) in response to a list of ten queries, varying in complexity. These queries were run on each search engine and the precision and response time of the retrieved results were recorded. The first ten documents on each retrieval output were evaluated as being ‘relevant’ or ‘non-relevant’ for evaluation of the search engine’s precision. T...

  14. CORCON-MOD3: An integrated computer model for analysis of molten core-concrete interactions. User`s manual

    Energy Technology Data Exchange (ETDEWEB)

    Bradley, D.R.; Gardner, D.R.; Brockmann, J.E.; Griffith, R.O. [Sandia National Labs., Albuquerque, NM (United States)

    1993-10-01

    The CORCON-Mod3 computer code was developed to mechanistically model the important core-concrete interaction phenomena, including those phenomena relevant to the assessment of containment failure and radionuclide release. The code can be applied to a wide range of severe accident scenarios and reactor plants. The code represents the current state of the art for simulating core debris interactions with concrete. This document comprises the user`s manual and gives a brief description of the models and the assumptions and limitations in the code. Also discussed are the input parameters and the code output. Two sample problems are also given.

  15. Comparative analysis of life insurance market

    Directory of Open Access Journals (Sweden)

    Malynych, Anna Mykolayivna

    2011-05-01

    Full Text Available The article deals with the comprehensive analysis of statistic insight into development of the world and regional life insurance markets on the basis of macroeconomic indicators. The author located domestic life insurance market on the global scale, analyzed its development and suggested the methods to calculate the marketing life insurance index. There was also approbated the mentioned methods on database of 77 countries all over the world. The author also defined the national rating on the basis of marketing life insurance index.

  16. A comparative analysis of capacity adequacy policies

    International Nuclear Information System (INIS)

    In this paper a stochastic dynamic optimization model is used to analyze the effect of different generation adequacy policies in restructured power systems. The expansion decisions of profit-maximizing investors are simulated under a number of different market designs: Energy Only with and without a price cap, Capacity Payment, Capacity Obligation, Capacity Subscription, and Demand Elasticity. The results show that the overall social welfare is reduced compared to a centralized social welfare optimization for all policies except Capacity Subscription and Demand Elasticity. In particular, an energy only market with a low price cap leads to a significant increase in involuntary load shedding. Capacity payments and obligations give additional investment incentives and more generating capacity, but also result in a considerable transfer of wealth from consumers to producers due to the capacity payments. Increased demand elasticity increases social welfare, but also results in a transfer from producers to consumers, compared to the theoretical social welfare optimum. In contrast, the capacity subscription policy increases the social welfare, and both producers and consumers benefit. This is possible because capacity subscription explicitly utilizes differences in consumers' preferences for uninterrupted supply. This advantage must be weighed against the cost of implementation, which is not included in the model.

  17. Comparing structural decomposition analysis and index

    International Nuclear Information System (INIS)

    To analyze and understand historical changes in economic, environmental, employment or other socio-economic indicators, it is useful to assess the driving forces or determinants that underlie these changes. Two techniques for decomposing indicator changes at the sector level are structural decomposition analysis (SDA) and index decomposition analysis (IDA). For example, SDA and IDA have been used to analyze changes in indicators such as energy use, CO2-emissions, labor demand and value added. The changes in these variables are decomposed into determinants such as technological, demand, and structural effects. SDA uses information from input-output tables while IDA uses aggregate data at the sector-level. The two methods have developed quite independently, which has resulted in each method being characterized by specific, unique techniques and approaches. This paper has three aims. First, the similarities and differences between the two approaches are summarized. Second, the possibility of transferring specific techniques and indices is explored. Finally, a numerical example is used to illustrate differences between the two approaches

  18. Nonlinear analysis of RED - a comparative study

    International Nuclear Information System (INIS)

    Random Early Detection (RED) is an active queue management (AQM) mechanism for routers on the Internet. In this paper, performance of RED and Adaptive RED are compared from the viewpoint of nonlinear dynamics. In particular, we reveal the relationship between the performance of the network and its nonlinear dynamical behavior. We measure the maximal Lyapunov exponent and Hurst parameter of the average queue length of RED and Adaptive RED, as well as the throughput and packet loss rate of the aggregate traffic on the bottleneck link. Our simulation scenarios include FTP flows and Web flows, one-way and two-way traffic. In most situations, Adaptive RED has smaller maximal Lyapunov exponents, lower Hurst parameters, higher throughput and lower packet loss rate than that of RED. This confirms that Adaptive RED has better performance than RED

  19. Comparative analysis of some search engines

    Directory of Open Access Journals (Sweden)

    Taiwo O. Edosomwan

    2010-10-01

    Full Text Available We compared the information retrieval performances of some popular search engines (namely, Google, Yahoo, AlltheWeb, Gigablast, Zworks and AltaVista and Bing/MSN in response to a list of ten queries, varying in complexity. These queries were run on each search engine and the precision and response time of the retrieved results were recorded. The first ten documents on each retrieval output were evaluated as being ‘relevant’ or ‘non-relevant’ for evaluation of the search engine’s precision. To evaluate response time, normalised recall ratios were calculated at various cut-off points for each query and search engine. This study shows that Google appears to be the best search engine in terms of both average precision (70% and average response time (2 s. Gigablast and AlltheWeb performed the worst overall in this study.

  20. Resilience and electricity systems: A comparative analysis

    International Nuclear Information System (INIS)

    Electricity systems have generally evolved based on the natural resources available locally. Few metrics exist to compare the security of electricity supply of different countries despite the increasing likelihood of potential shocks to the power system like energy price increases and carbon price regulation. This paper seeks to calculate a robust measure of national power system resilience by analysing each step in the process of transformation from raw energy to consumed electricity. Countries with sizeable deposits of mineral resources are used for comparison because of the need for electricity-intensive metals processing. We find that shifts in electricity-intensive industry can be predicted based on countries' power system resilience. - Highlights: ► We establish a resilience index measure for major electricity systems. ► We examine a range of OECD and developing nations electricity systems and their ability to cope with shocks. ► Robustness measures are established to show resilience of electricity systems.

  1. Integrated Reliability and Risk Analysis System (IRRAS) Version 2.0 user's guide

    International Nuclear Information System (INIS)

    The Integrated Reliability and Risk Analysis System (IRRAS) is a state-of-the-art, microcomputer-based probabilistic risk assessment (PRA) model development and analysis tool to address key nuclear plant safety issues. IRRAS is an integrated software tool that gives the user the ability to create and analyze fault trees and accident sequences using a microcomputer. This program provides functions that range from graphical fault tree construction to cut set generation and quantification. Also provided in the system is an integrated full-screen editor for use when interfacing with remote mainframe computer systems. Version 1.0 of the IRRAS program was released in February of 1987. Since that time, many user comments and enhancements have been incorporated into the program providing a much more powerful and user-friendly system. This version has been designated IRRAS 2.0 and is the subject of this user's guide. Version 2.0 of IRRAS provides all of the same capabilities as Version 1.0 and adds a relational data base facility for managing the data, improved functionality, and improved algorithm performance. 9 refs., 292 figs., 4 tabs

  2. Sea Guidelines. A Comparative Analysis: First Outcomes

    Directory of Open Access Journals (Sweden)

    Andrea De Montis

    2014-05-01

    Full Text Available The European Directive 2001/42/EC (Directive has introduced the Strategic Environmental Assessment (SEA, a procedure for assessing the effects of certain plans and programs on the environment. The Directive has been transposed in different ways and times within Europe: member states have frequently drawn up guidelines to facilitate SEA implementation, by adopting different approaches. So far a few studies have been performed to analyze SEA guidelines. In this paper we aim to analyze key elements of SEA guidelines released by seven European countries in order to evaluate the effectiveness of those documents and SEA implementation. We have found that no SEA guidelines satisfy all key elements we have identified. Based on the latter finding, this work is introductory to a further analysis which aims to characterize SEA guidelines and define a proposal of SEA guidelines for landscape planning in the Italian region of Sardinia.

  3. Comparative Modal Analysis of Sieve Hardware Designs

    Science.gov (United States)

    Thompson, Nathaniel

    2012-01-01

    The CMTB Thwacker hardware operates as a testbed analogue for the Flight Thwacker and Sieve components of CHIMRA, a device on the Curiosity Rover. The sieve separates particles with a diameter smaller than 150 microns for delivery to onboard science instruments. The sieving behavior of the testbed hardware should be similar to the Flight hardware for the results to be meaningful. The elastodynamic behavior of both sieves was studied analytically using the Rayleigh Ritz method in conjunction with classical plate theory. Finite element models were used to determine the mode shapes of both designs, and comparisons between the natural frequencies and mode shapes were made. The analysis predicts that the performance of the CMTB Thwacker will closely resemble the performance of the Flight Thwacker within the expected steady state operating regime. Excitations of the testbed hardware that will mimic the flight hardware were recommended, as were those that will improve the efficiency of the sieving process.

  4. Community detection algorithms: a comparative analysis

    CERN Document Server

    Lancichinetti, Andrea

    2009-01-01

    Uncovering the community structure exhibited by real networks is a crucial step towards an understanding of complex systems that goes beyond the local organization of their constituents. Many algorithms have been proposed so far, but none of them has been subjected to strict tests to evaluate their performance. Most of the sporadic tests performed so far involved small networks with known community structure and/or artificial graphs with a simplified structure, which is very uncommon in real systems. Here we test several methods against a recently introduced class of benchmark graphs, with heterogeneous distributions of degree and community size. The methods are also tested against the benchmark by Girvan and Newman and on random graphs. As a result of our analysis, three recent algorithms introduced by Rosvall and Bergstrom, Blondel et al. and Ronhovde and Nussinov, respectively, have an excellent performance, with the additional advantage of low computational complexity, which enables one to analyze large s...

  5. Comparative Analysis Of Cloud Computing Security Issues

    Directory of Open Access Journals (Sweden)

    AKRAM MUJAHID

    2014-01-01

    Full Text Available Almost all the organizations are seriously thinking to adopt the cloud computingservices, seeing its benefits in terms of cost, accessibility, availability, flexibility andhighly automated process of updation. Cloud Computing enhance the current capabilitiesdynamically without further investment. Cloud Computing is a band of resources, applicationsand services. In cloud computing customer’s access IT related services in terms of infrastructure platform and software without getting knowledge of underlying technologies. With the executionof cloud computing, organizations have strong concerns about the security of their data.Organizations are hesitating to take initiatives in the deployment of their businesses due to data security problem. This paper gives an overview of cloud computing and analysis of security issues in cloud computing.

  6. Comparative analysis of cystatin superfamily in platyhelminths.

    Science.gov (United States)

    Guo, Aijiang

    2015-01-01

    The cystatin superfamily is comprised of cysteine proteinase inhibitors and encompasses at least 3 subfamilies: stefins, cystatins and kininogens. In this study, the platyhelminth cystatin superfamily was identified and grouped into stefin and cystatin subfamilies. The conserved domain of stefins (G, QxVxG) was observed in all members of platyhelminth stefins. The three characteristics of cystatins, the cystatin-like domain (G, QxVxG, PW), a signal peptide, and one or two conserved disulfide bonds, were observed in platyhelminths, with the exception of cestodes, which lacked the conserved disulfide bond. However, it is noteworthy that cestode cystatins had two tandem repeated domains, although the second tandem repeated domain did not contain a cystatin-like domain, which has not been previously reported. Tertiary structure analysis of Taenia solium cystatin, one of the cestode cystatins, demonstrated that the N-terminus of T. solium cystatin formed a five turn ?-helix, a five stranded ?-pleated sheet and a hydrophobic edge, similar to the structure of chicken cystatin. Although no conserved disulfide bond was found in T. solium cystatin, the models of T. solium cystatin and chicken cystatin corresponded at the site of the first disulfide bridge of the chicken cystatin. However, the two models were not similar regarding the location of the second disulfide bridge of chicken cystatin. These results showed that T. solium cystatin and chicken cystatin had similarities and differences, suggesting that the biochemistry of T. solium cystatin could be similar to chicken cystatin in its inhibitory function and that it may have further functional roles. The same results were obtained for other cestode cystatins. Phylogenetic analysis showed that cestode cystatins constituted an independent clade and implied that cestode cystatins should be considered to have formed a new clade during evolution. PMID:25853513

  7. WASP7 Stream Transport - Model Theory and User's Guide: Supplement to Water Quality Analysis Simulation Program (WASP) User Documentation

    Science.gov (United States)

    The standard WASP7 stream transport model calculates water flow through a branching stream network that may include both free-flowing and ponded segments. This supplemental user manual documents the hydraulic algorithms, including the transport and hydrogeometry equations, the m...

  8. Comparative analysis of Venus and Mars magnetotails

    Science.gov (United States)

    Fedorov, A.; Ferrier, C.; Sauvaud, J. A.; Barabash, S.; Zhang, T. L.; Mazelle, C.; Lundin, R.; Gunell, H.; Andersson, H.; Brinkfeldt, K.; Futaana, Y.; Grigoriev, A.; Holmström, M.; Yamauchi, M.; Asamura, K.; Baumjohann, W.; Lammer, H.; Coates, A. J.; Kataria, D. O.; Linder, D. R.; Curtis, C. C.; Hsieh, K. C.; Sandel, B. R.; Thocaven, J.-J.; Grande, M.; Koskinen, H.; Kallio, E.; Sales, T.; Schmidt, W.; Riihela, P.; Kozyra, J.; Krupp, N.; Woch, J.; Luhmann, J.; McKenna-Lawlor, S.; Orsini, S.; Cerulli-Irelli, R.; Mura, A.; Milillo, A.; Maggi, M.; Roelof, E.; Brandt, P.; Russell, C. T.; Szego, K.; Winningham, J. D.; Frahm, R. A.; Scherrer, J.; Sharber, J. R.; Wurz, P.; Bochsler, P.

    2008-05-01

    We have an unique opportunity to compare the magnetospheres of two non-magnetic planets as Mars and Venus with identical instrument sets Aspera-3 and Aspera-4 on board of the Mars Express and Venus Express missions. We have performed both statistical and case studies of properties of the magnetosheath ion flows and the flows of planetary ions behind both planets. We have shown that the general morphology of both magnetotails is generally identical. In both cases the energy of the light ( H+) and the heavy ( O+, etc.) ions decreases from the tail periphery (several keV) down to few eV in the tail center. At the same time the wake center of both planets is occupied by plasma sheet coincident with the current sheet of the tail. Both plasma sheets are filled by accelerated (500-1000 eV) heavy planetary ions. We report also the discovery of a new feature never observed before in the tails of non-magnetic planets: the plasma sheet is enveloped by consecutive layers of He+ and H+ with decreasing energies.

  9. Comparative proteomics analysis of human gastric cancer

    Directory of Open Access Journals (Sweden)

    Wei Li, Jian-Fang Li, Ying Qu, Xue-Hua Chen, Jian-Min Qin, Qin-Long Gu, Min Yan, Zheng-Gang Zhu, Bing-Ya Liu

    2008-10-01

    Full Text Available AIM: To isolate and identify differentially expressed proteins between cancer and normal tissues of gastric cancer by two-dimensional electrophoresis (2-DE and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS.METHODS: Soluble fraction proteins of gastric cancer tissues and paired normal tissues were separated by 2-DE. The differentially expressed proteins were selected and identified by MALDI-TOF-MS and database search.RESULTS: 2-DE profiles with high resolution and reproducibility were obtained. Twenty-three protein spots were excised from sliver staining gel and digested in gel by trypsin, in which fifteen protein spots were identified successfully. Among the identified proteins, there were ten over-expressed and five under-expressed proteins in stomach cancer tissues compared with normal tissues.CONCLUSION: In this study, the well-resolved, reproducible 2-DE patterns of human gastric cancer tissue and paired normal tissue were established and optimized and certain differentially-expressed proteins were identified. The combined use of 2-DE and MS provides an effective approach to screen for potential tumor markers.

  10. Comparative economic analysis: Anaerobic digester case study

    International Nuclear Information System (INIS)

    An economic guide is developed to assess the value of anaerobic digesters used on dairy farms. Two varieties of anaerobic digesters, a conventional mixed-tank mesophilic and an innovative earthen psychrophilic, are comparatively evaluated using a cost-effectiveness index. The two case study examples are also evaluated using three other investment merit statistics: simple payback period, net present value, and internal rate of return. Life-cycle savings are estimated for both varieties, with sensitivities considered for investment risk. The conclusion is that an earthen psychrophilic digester can have a significant economic advantage over a mixed-tank mesophilic digester because of lower capital cost and reduced operation and maintenance expenses. Because of this economic advantage, additional projects are being conducted in North Carolina to increase the rate of biogas utilization. The initial step includes using biogas for milk cooling at the dairy farm where the existing psychrophilic digester is located. Further, a new project is being initiated for electricity production with thermal reclaim at a swine operation

  11. LINGUISTIC AND POLITICAL ANALYSIS: COMPARATIVE ASPECTS

    Directory of Open Access Journals (Sweden)

    V. M. Alpatov

    2015-07-01

    Full Text Available Abstract: The article analyses the book on political systems and processes in the East prepared by MGIMO-University authors and edited by Alexei D. Voskressenski in order to show the differences in approach and methods used in linguistics and political science. The author shows two significant differences in present-day stressing that linguistics of the XIX century was closer to the present-day political science? As he believes. The first difference includes monism of political science approach, since the book reveals monistic scale from totalitarianism to democracy, while linguistic has abandoned the monistic view on typology. The second difference is the value-addedness of the political science approach. The value-free norm in linguistics presupposes setting up of a single standard for all speakers in order to reach full mutual understanding. In political science subjective criteria are decisive for evaluation. The article gives examples from the book to prove that political science, compared to linguistics, is not aimed at overcoming contradictions, distinguishing between the terms, avoiding unproved statements and subjective evaluations.

  12. Comparative Analysis of Evapotranspiration Using Eddy Covariance

    Science.gov (United States)

    BAE, H.; Ji, H.; Lee, B.; Nam, K.; Jang, B.; Lee, C.; Jung, H.

    2013-12-01

    The eddy covariance method has been widely used to quantify evapotranspiration. However, independent measurements of energy components such as latent heat flux, sensible heat flux often lead to under-measurements, this is commonly known as a lack of closure of the surface energy balance. In response to this methodological problem, this study is addressed specifically to correction of the latent and heat sensible fluxes. The energy components observed in agricultural and grassland from January 2013 were measured using the eddy covariance method. As a result of the comparison of the available energy (Rn-G) with the sum of the latent and sensible heat fluxes, R-Squared values were 0.72 in the agricultural land, 0.78 in the grassland, indicating that the latent and sensible heat fluxes were under-measured. The obtained latent and sensible heat fluxes were then modified using the Bowen-ratio closure method. After this correction process, the values of the sum of the latent and sensible heat fluxes have increased by 39.7 percent in the agricultural land, 32.2 percent in the grassland respectively. Evapotranspiration will be calculated with both the unmodified and modified latent heat flux values, the results will be then thoroughly compared. The results will be finally verified by comparison with evapotranspiration obtained from energy balance based model.

  13. Alice Meets Bob: A Comparative Usability Study of Wireless Device Pairing Methods for a "Two-User" Setting

    CERN Document Server

    Kumar, Arun; Uzun, Ersin

    2009-01-01

    When users want to establish wireless communication between/among their devices, the channel has to be bootstrapped first. To prevent any malicious control of or eavesdropping over the communication, the channel is desired to be authenticated and confidential. The process of setting up a secure communication channel between two previously unassociated devices is referred to as "Secure Device Pairing". When there is no prior security context, e.g., shared secrets, common key servers or public key certificates, device pairing requires user involvement into the process. The idea usually involves leveraging an auxiliary human-perceptible channel to authenticate the data exchanged over the insecure wireless channel. We observe that the focus of prior research has mostly been limited to pairing scenarios where a single user controls both the devices. In this paper, we consider more general and emerging "two-user" scenarios, where two different users establish pairing between their respective devices. Although a num...

  14. Analysis of chromosomal aberrations, micronuclei and hematological disorders among workers of wireless communication instruments and cell phone (Mobile) users

    International Nuclear Information System (INIS)

    This study was carried out to investigate the hazardous effect of electromagnetic radiation (EMR) such as chromosomal aberration, disturbed micronucleus formation and hematological disorders that may detected among workers of wireless communication instruments and mobile phone users. Seven individuals ( 3 males and 4 females) of a central workers in the microwave unit of the wireless station and 7 users of Mobil phone (4 males and 3 females ) were volunteered to give blood samples. Chromosomes and micronucleus were prepared for cytogenetic analysis as well as blood film for differential count. The results obtained in the microwave group indicated that, the total summation of all types of aberrations (chromosomes and chromatid aberrations) had a frequency of 6. 14% for the exposed group, whereas, the frequency in the control group amounted to 1.57%. In Mobil phone users, the total summation of all types of aberrations(chromosome and chromatid aberrations) had a frequency of 4.43% for the exposed group and 1.71% for the control group. The incidence of the total number of micronuclei in the exposed microwave group was increased 4.3 folds as compared with those of the control group The incidence of the total number of micronuclei in the exposed mobile phone group was increased 2 fold as compared with those in the control group. On the other hand, normal ranges of total white blood cells counts were determined for mobile phone users but abnormalities in the differential counts of the different types of the white blood cells such as neutropenia, eosinophilia and lymphocytosis were observed in the individuals number 1,2,3,7 in microwave group

  15. Comparative analysis of laparoscopic low rectal resections

    Directory of Open Access Journals (Sweden)

    I. L. Chernikovsky

    2015-07-01

    Full Text Available Objective: to study the immediate results of laparoscopic intersphincteric resection (ISR and ultralow anterior resection (ULAR of the rectum.Subjects and methods. The results of surgical treatment in 42 patients operated on in the Saint Petersburg Clinical Research-Practical Center for Specialized Medical (Oncology Cares in March 2014 to January 2015 are given. The inclusion criteria were the lower edge of cT1–3N0 adenocarcinoma 2-5 cm above the dentate line and no signs of invasion into the sphincter and levators. All the patients were divided into 2 groups: 1 24 patients who had undergone laparoscopic ISR; 2 18 patients who had laparoscopic ULAR. Both groups were matched for gender, age, body mass index, and CR-POSSUM predicted mortality scores. Thirty-two patients received neoadjuvant chemoradiotherapy. Results. The mean duration of operations did not differ significantly in the groups: 206 ± 46 and 216 ± 24 min (р = 0.72. The differences in the mean volume of blood loss were also insignificant: 85 and 113 ml (р = 0.93. Circular and distal resection margins were intact in all the cases. In 18 (75 % patients in Group 1 and in 14 (77.8 % patients in Group 2, the quality of total mesorectumectomy (TME was rated as grade 3 according to the Quirk criteria (p = 0.83. In Group 1, complications requiring no reoperation occurred in 5 (20.8 % cases: anastomotic incompetence in 3 (12.5 % cases, anastomotic stricture with further bougienage in 1 (4.2 %, and urinary retention in 1 (4.2 %. In Group 2, postoperative coтplications were also observed in 5 (27.8 % cases: necrosis of the brought-out bowel in 2 (11.1 % patients and coloanal incompetence in 1 (5.6 % required reoperation; 2 (11.1 % patients underwent bougienage due to established anastomotic stricture. One month postoperatively, the Wexner constipation scoring system was used to rate the degree of encopresis: anal incontinence turned out to be significantly higher in Group 2 and amounted to 9.3 versus 6.2 in Group1. ULAR required consumables costing an average of 45 000 rubles more than did ISR. Conclusion. Both surgical procedures are comparable in the duration of a surgical intervention, the volume of intraoperative blood loss, and the quality of TME. ULAR with a reservoir is functionally more preferential.  

  16. Towards for Analyzing Alternatives of Interaction Design Based on Verbal Decision Analysis of User Experience

    Directory of Open Access Journals (Sweden)

    Marília Soares Mendes

    2010-04-01

    Full Text Available In domains (as digital TV, smart home, and tangible interfaces that represent a new paradigm of interactivity, the decision of the most appropriate interaction design solution is a challenge. HCI researchers have promoted in their works the validation of design alternative solutions with users before producing the final solution. User experience with technology is a subject that has also gained ground in these works in order to analyze the appropriate solution(s. Following this concept, a study was accomplished under the objective of finding a better interaction solution for an application of mobile TV. Three executable applications of mobile TV prototypes were built. A Verbal Decision Analysis model was applied on the investigations for the favorite characteristics in each prototype based on the user’s experience and their intentions of use. This model led a performance of a qualitative analysis which objectified the design of a new prototype.

  17. User Query Analysis for the Specification and Evaluation of a Dialogue Processing and Retrieval System

    OpenAIRE

    Lisowska, Agnès; Popescu-Belis, Andréi; Armstrong, Susan

    2004-01-01

    This article describes an experiment in user query elicitation for the design of a multimodal meeting processing and retrieval system (MPR). In the experiment, participants are asked to choose between several scenarios of use of an MPR system, then formulate (on paper) queries to the system within the context of their chosen scenario. The analysis of the queries provides us with an initial set of requirements for the design of an MPR system, which will be used to confirm a priori design consi...

  18. Alkahest NuclearBLAST : a user-friendly BLAST management and analysis system

    OpenAIRE

    Burke Mark; Windham, DE; Kalat Sam E; Houfek Thomas D; Diener Stephen E; Opperman Charles; Dean Ralph A

    2005-01-01

    Abstract Background - Sequencing of EST and BAC end datasets is no longer limited to large research groups. Drops in per-base pricing have made high throughput sequencing accessible to individual investigators. However, there are few options available which provide a free and user-friendly solution to the BLAST result storage and data mining needs of biologists. Results - Here we describe NuclearBLAST, a batch BLAST analysis, storage and management system designed for the biologist. It is a w...

  19. A framework for quantitative analysis of user-generated spatial data

    OpenAIRE

    Feltwell, Tom; Dickinson, Patrick; Cielniak, Grzegorz

    2012-01-01

    This paper proposes a new framework for automated analysis of game-play metrics for aiding game designers in finding out the critical aspects of the game caused by factors like design modications, change in playing style, etc. The core of the algorithm measures similarity between spatial distribution of user generated in-game events and automatically ranks them in order of importance. The feasibility of the method is demonstrated on a data set collected from a modern, mul...

  20. Shape Analysis of 3D Head Scan Data for U.S. Respirator Users

    OpenAIRE

    Stephanie Lynch; Viscusi, Dennis J.; Stacey Benson; Slice, Dennis E.; Ziqing Zhuang

    2010-01-01

    In 2003, the National Institute for Occupational Safety and Health (NIOSH) conducted a head-and-face anthropometric survey of diverse, civilian respirator users. Of the 3,997 subjects measured using traditional anthropometric techniques, surface scans and 26 three-dimensional (3D) landmark locations were collected for 947 subjects. The objective of this study was to report the size and shape variation of the survey participants using the 3D data. Generalized Procrustes Analysis (GPA) was con...

  1. Large-System Analysis of Joint User Selection and Vector Precoding for Multiuser MIMO Downlink

    CERN Document Server

    Takeuchi, Keigo; Kawabata, Tsutomu

    2012-01-01

    Joint user selection (US) and vector precoding (US-VP) is proposed for multiuser multiple-input multiple-output (MU-MIMO) downlink. The main difference between joint US-VP and conventional US is that US depends on data symbols for joint US-VP, whereas conventional US is independent of data symbols. The replica method is used to analyze the performance of joint US-VP in the large-system limit, where the numbers of transmit antennas, users, and selected users tend to infinity while their ratios are kept constant. The analysis under the assumptions of replica symmetry (RS) and 1-step replica symmetry breaking (1RSB) implies that optimal data-independent US provides nothing but the same performance as random US in the large-system limit, whereas data-independent US is capacity-achieving as only the number of users tends to infinity. It is shown that joint US-VP can provide a substantial reduction of the energy penalty in the large-system limit. Consequently, joint US-VP outperforms separate US-VP in terms of the ...

  2. Tweeting the meeting: A comparative analysis of an Australian emergency medicine conference over four years

    Science.gov (United States)

    Udovicich, Cristian; Barberi, Anthony; Perera, Kalpa

    2016-01-01

    Objective: Social media allows user-generated content and dialog between users and has also entered into the domain of healthcare. The purpose of this study was to compare the use of Twitter at the Australasian College of Emergency Medicine Annual Scientific Meeting (ACEM ASM) from 2011 to 2014 and analyze its ability to spread emergency medicine education. Materials and Methods: Retrospectively, TweetReach was utilized to analyze relevant tweets. Each Annual Scientific Meeting (ASM) had an associated Twitter account/s from, which data were collected. Duplicate tweets were excluded from the analysis. Information on the number of total tweets (regular tweets, retweets, and replies) and contributors was gathered. The potential audience, the reach, was calculated. Results: From 2011 to 2014 the number of tweets rose from 460 to 4694, a 920% increase. Only 54 Twitter users contributed to the 2011 ASM. This rose to 252 (2012), 291 (2013) and 572 (2014). The average number of tweets per contributor ranged from 8.2 to 10.9. The reach, the potential number of Twitter users exposed to posts, rose >30 times from 2011 (15,502 users) to 2014 (471,166). Conclusion: The use of Twitter at the ACEM ASM rose significantly from 2011 to 2014. It is a highly useful tool for the dissemination of emergency medicine education. Twitter has been harnessed by the ASM to enhance the conference experience by further generating interaction between delegates as well as those worldwide. PMID:26957823

  3. MONITORING POTENTIAL DRUG INTERACTIONS AND REACTIONS VIA NETWORK ANALYSIS OF INSTAGRAM USER TIMELINES

    Science.gov (United States)

    CORREIA, RION BRATTIG; LI, LANG; ROCHA, LUIS M.

    2015-01-01

    Much recent research aims to identify evidence for Drug-Drug Interactions (DDI) and Adverse Drug reactions (ADR) from the biomedical scientific literature. In addition to this “Bibliome”, the universe of social media provides a very promising source of large-scale data that can help identify DDI and ADR in ways that have not been hitherto possible. Given the large number of users, analysis of social media data may be useful to identify under-reported, population-level pathology associated with DDI, thus further contributing to improvements in population health. Moreover, tapping into this data allows us to infer drug interactions with natural products—including cannabis—which constitute an array of DDI very poorly explored by biomedical research thus far. Our goal is to determine the potential of Instagram for public health monitoring and surveillance for DDI, ADR, and behavioral pathology at large. Most social media analysis focuses on Twitter and Facebook, but Instagram is an increasingly important platform, especially among teens, with unrestricted access of public posts, high availability of posts with geolocation coordinates, and images to supplement textual analysis. Using drug, symptom, and natural product dictionaries for identification of the various types of DDI and ADR evidence, we have collected close to 7000 user timelines spanning from October 2010 to June 2015. We report on 1) the development of a monitoring tool to easily observe user-level timelines associated with drug and symptom terms of interest, and 2) population-level behavior via the analysis of co-occurrence networks computed from user timelines at three different scales: monthly, weekly, and daily occurrences. Analysis of these networks further reveals 3) drug and symptom direct and indirect associations with greater support in user timelines, as well as 4) clusters of symptoms and drugs revealed by the collective behavior of the observed population. This demonstrates that Instagram contains much drug- and pathology specific data for public health monitoring of DDI and ADR, and that complex network analysis provides an important toolbox to extract health-related associations and their support from large-scale social media data. PMID:26776212

  4. MONITORING POTENTIAL DRUG INTERACTIONS AND REACTIONS VIA NETWORK ANALYSIS OF INSTAGRAM USER TIMELINES.

    Science.gov (United States)

    Correia, Rion Brattig; Li, Lang; Rocha, Luis M

    2016-01-01

    Much recent research aims to identify evidence for Drug-Drug Interactions (DDI) and Adverse Drug reactions (ADR) from the biomedical scientific literature. In addition to this "Bibliome", the universe of social media provides a very promising source of large-scale data that can help identify DDI and ADR in ways that have not been hitherto possible. Given the large number of users, analysis of social media data may be useful to identify under-reported, population-level pathology associated with DDI, thus further contributing to improvements in population health. Moreover, tapping into this data allows us to infer drug interactions with natural products-including cannabis-which constitute an array of DDI very poorly explored by biomedical research thus far.Our goal is to determine the potential of Instagram for public health monitoring and surveillance for DDI, ADR, and behavioral pathology at large. Most social media analysis focuses on Twitter and Facebook, but Instagram is an increasingly important platform, especially among teens, with unrestricted access of public posts, high availability of posts with geolocation coordinates, and images to supplement textual analysis.Using drug, symptom, and natural product dictionaries for identification of the various types of DDI and ADR evidence, we have collected close to 7000 user timelines spanning from October 2010 to June 2015.We report on 1) the development of a monitoring tool to easily observe user-level timelines associated with drug and symptom terms of interest, and 2) population-level behavior via the analysis of co-occurrence networks computed from user timelines at three different scales: monthly, weekly, and daily occurrences. Analysis of these networks further reveals 3) drug and symptom direct and indirect associations with greater support in user timelines, as well as 4) clusters of symptoms and drugs revealed by the collective behavior of the observed population.This demonstrates that Instagram contains much drug- and pathology specific data for public health monitoring of DDI and ADR, and that complex network analysis provides an important toolbox to extract health-related associations and their support from large-scale social media data. PMID:26776212

  5. User`s manual for the data analysis system for monitoring the fuel oil spill at the Sandia National Laboratories installation in Livermore, California

    Energy Technology Data Exchange (ETDEWEB)

    Widing, M.A.; Leser, C.C.

    1995-04-01

    This report describes the use of the data analysis software developed by Argonne National laboratory (ANL) and installed at the fuel oil spill site at Sandia National Laboratories. This software provides various programs for anlayzing the data from physical and chemical sensors. This manual provides basic information on the design and use of these user interfaces. Analysts use these interfaces to evaluate the site data. Four software programs included in the data analysis software suite provide the following capabilities; physical data analysis, chemical data entry, chemical data analysis, and data management.

  6. Transportation Routing Analysis Georgraphic Information System (WebTRAGIS) User's Manual

    Energy Technology Data Exchange (ETDEWEB)

    Michelhaugh, R.D.

    2000-04-20

    In the early 1980s, Oak Ridge National Laboratory (ORNL) developed two transportation routing models: HIGHWAY, which predicts truck transportation routes, and INTERLINE, which predicts rail transportation routes. Both of these models have been used by the U.S. Department of Energy (DOE) community for a variety of routing needs over the years. One of the primary uses of the models has been to determine population-density information, which is used as input for risk assessment with the RADTRAN model, which is available on the TRANSNET computer system. During the recent years, advances in the development of geographic information systems (GISs) have resulted in increased demands from the user community for a GIS version of the ORNL routing models. In April 1994, the DOE Transportation Management Division (EM-261) held a Baseline Requirements Assessment Session with transportation routing experts and users of the HIGHWAY and INTERLINE models. As a result of the session, the development of a new GIS routing model, Transportation Routing Analysis GIS (TRAGIS), was initiated. TRAGIS is a user-friendly, GIS-based transportation and analysis computer model. The older HIGHWAY and INTERLINE models are useful to calculate routes, but they cannot display a graphic of the calculated route. Consequently, many users have experienced difficulty determining the proper node for facilities and have been confused by or have misinterpreted the text-based listing from the older routing models. Some of the primary reasons for the development of TRAGIS are (a) to improve the ease of selecting locations for routing, (b) to graphically display the calculated route, and (c) to provide for additional geographic analysis of the route.

  7. Transportation Routing Analysis Geographic Information System (WebTRAGIS) User's Manual

    International Nuclear Information System (INIS)

    In the early 1980s, Oak Ridge National Laboratory (ORNL) developed two transportation routing models: HIGHWAY, which predicts truck transportation routes, and INTERLINE, which predicts rail transportation routes. Both of these models have been used by the U.S. Department of Energy (DOE) community for a variety of routing needs over the years. One of the primary uses of the models has been to determine population-density information, which is used as input for risk assessment with the RADTRAN model, which is available on the TRANSNET computer system. During the recent years, advances in the development of geographic information systems (GISs) have resulted in increased demands from the user community for a GIS version of the ORNL routing models. In April 1994, the DOE Transportation Management Division (EM-261) held a Baseline Requirements Assessment Session with transportation routing experts and users of the HIGHWAY and INTERLINE models. As a result of the session, the development of a new GIS routing model, Transportation Routing Analysis GIS (TRAGIS), was initiated. TRAGIS is a user-friendly, GIS-based transportation and analysis computer model. The older HIGHWAY and INTERLINE models are useful to calculate routes, but they cannot display a graphic of the calculated route. Consequently, many users have experienced difficulty determining the proper node for facilities and have been confused by or have misinterpreted the text-based listing from the older routing models. Some of the primary reasons for the development of TRAGIS are (a) to improve the ease of selecting locations for routing, (b) to graphically display the calculated route, and (c) to provide for additional geographic analysis of the route

  8. Hydrogen Financial Analysis Scenario Tool (H2FAST). Web Tool User's Manual

    Energy Technology Data Exchange (ETDEWEB)

    Bush, B. [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Penev, M. [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Melaina, M. [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Zuboy, J. [Independent Consultant, Golden, CO (United States)

    2015-05-11

    The Hydrogen Financial Analysis Scenario Tool (H2FAST) provides a quick and convenient indepth financial analysis for hydrogen fueling stations. This manual describes how to use the H2FAST web tool, which is one of three H2FAST formats developed by the National Renewable Energy Laboratory (NREL). Although all of the formats are based on the same financial computations and conform to generally accepted accounting principles (FASAB 2014, Investopedia 2014), each format provides a different level of complexity and user interactivity.

  9. Low Cost Desktop Image Analysis Workstation With Enhanced Interactive User Interface

    Science.gov (United States)

    Ratib, Osman M.; Huang, H. K.

    1989-05-01

    A multimodality picture archiving and communication system (PACS) is in routine clinical use in the UCLA Radiology Department. Several types workstations are currently implemented for this PACS. Among them, the Apple Macintosh II personal computer was recently chosen to serve as a desktop workstation for display and analysis of radiological images. This personal computer was selected mainly because of its extremely friendly user-interface, its popularity among the academic and medical community and its low cost. In comparison to other microcomputer-based systems the Macintosh II offers the following advantages: the extreme standardization of its user interface, file system and networking, and the availability of a very large variety of commercial software packages. In the current configuration the Macintosh II operates as a stand-alone workstation where images are imported from a centralized PACS server through an Ethernet network using a standard TCP-IP protocol, and stored locally on magnetic disk. The use of high resolution screens (1024x768 pixels x 8bits) offer sufficient performance for image display and analysis. We focused our project on the design and implementation of a variety of image analysis algorithms ranging from automated structure and edge detection to sophisticated dynamic analysis of sequential images. Specific analysis programs were developed for ultrasound images, digitized angiograms, MRI and CT tomographic images and scintigraphic images.

  10. Transversal analysis of public policies on user fees exemptions in six West African countries

    Directory of Open Access Journals (Sweden)

    Ridde Valéry

    2012-11-01

    Full Text Available Abstract Background While more and more West African countries are implementing public user fees exemption policies, there is still little knowledge available on this topic. The long time required for scientific production, combined with the needs of decision-makers, led to the creation in 2010 of a project to support implementers in aggregating knowledge on their experiences. This article presents a transversal analysis of user fees exemption policies implemented in Benin, Burkina Faso, Mali, Niger, Togo and Senegal. Methods This was a multiple case study with several embedded levels of analysis. The cases were public user fees exemption policies selected by the participants because of their instructive value. The data used in the countries were taken from documentary analysis, interviews and questionnaires. The transversal analysis was based on a framework for studying five implementation components and five actors’ attitudes usually encountered in these policies. Results The analysis of the implementation components revealed: a majority of State financing; maintenance of centrally organized financing; a multiplicity of reimbursement methods; reimbursement delays and/or stock shortages; almost no implementation guides; a lack of support measures; communication plans that were rarely carried out, funded or renewed; health workers who were given general information but not details; poorly informed populations; almost no evaluation systems; ineffective and poorly funded coordination systems; low levels of community involvement; and incomplete referral-evacuation systems. With regard to actors’ attitudes, the analysis revealed: objectives that were appreciated by everyone; dissatisfaction with the implementation; specific tensions between healthcare providers and patients; overall satisfaction among patients, but still some problems; the perception that while the financial barrier has been removed, other barriers persist; occasionally a reorganization of practices, service rationing due to lack of reimbursement, and some overcharging or shifting of resources. Conclusions This transversal analysis confirms the need to assign a great deal of importance to the implementation of user fees exemption policies once these decisions have been taken. It also highlights some practices that suggest avenues of future research.

  11. PuppetDroid: A User-Centric UI Exerciser for Automatic Dynamic Analysis of Similar Android Applications

    OpenAIRE

    Gianazza, Andrea; Maggi, Federico; Fattori, Aristide; Cavallaro, Lorenzo; Zanero, Stefano

    2014-01-01

    Popularity and complexity of malicious mobile applications are rising, making their analysis difficult and labor intensive. Mobile application analysis is indeed inherently different from desktop application analysis: In the latter, the interaction of the user (i.e., victim) is crucial for the malware to correctly expose all its malicious behaviors. We propose a novel approach to analyze (malicious) mobile applications. The goal is to exercise the user interface (UI) of an Android application...

  12. Alkahest NuclearBLAST : a user-friendly BLAST management and analysis system

    Directory of Open Access Journals (Sweden)

    Burke Mark

    2005-06-01

    Full Text Available Abstract Background - Sequencing of EST and BAC end datasets is no longer limited to large research groups. Drops in per-base pricing have made high throughput sequencing accessible to individual investigators. However, there are few options available which provide a free and user-friendly solution to the BLAST result storage and data mining needs of biologists. Results - Here we describe NuclearBLAST, a batch BLAST analysis, storage and management system designed for the biologist. It is a wrapper for NCBI BLAST which provides a user-friendly web interface which includes a request wizard and the ability to view and mine the results. All BLAST results are stored in a MySQL database which allows for more advanced data-mining through supplied command-line utilities or direct database access. NuclearBLAST can be installed on a single machine or clustered amongst a number of machines to improve analysis throughput. NuclearBLAST provides a platform which eases data-mining of multiple BLAST results. With the supplied scripts, the program can export data into a spreadsheet-friendly format, automatically assign Gene Ontology terms to sequences and provide bi-directional best hits between two datasets. Users with SQL experience can use the database to ask even more complex questions and extract any subset of data they require. Conclusion - This tool provides a user-friendly interface for requesting, viewing and mining of BLAST results which makes the management and data-mining of large sets of BLAST analyses tractable to biologists.

  13. GUARDD: user-friendly MATLAB software for rigorous analysis of CPMG RD NMR data

    International Nuclear Information System (INIS)

    Molecular dynamics are essential for life, and nuclear magnetic resonance (NMR) spectroscopy has been used extensively to characterize these phenomena since the 1950s. For the past 15 years, the Carr-Purcell Meiboom-Gill relaxation dispersion (CPMG RD) NMR experiment has afforded advanced NMR labs access to kinetic, thermodynamic, and structural details of protein and RNA dynamics in the crucial μs-ms time window. However, analysis of RD data is challenging because datasets are often large and require many non-linear fitting parameters, thereby confounding assessment of accuracy. Moreover, novice CPMG experimentalists face an additional barrier because current software options lack an intuitive user interface and extensive documentation. Hence, we present the open-source software package GUARDD (Graphical User-friendly Analysis of Relaxation Dispersion Data), which is designed to organize, automate, and enhance the analytical procedures which operate on CPMG RD data (http://code.google.com/p/guardd/http://code.google.com/p/guardd/). This MATLAB-based program includes a graphical user interface, permits global fitting to multi-field, multi-temperature, multi-coherence data, and implements χ2-mapping procedures, via grid-search and Monte Carlo methods, to enhance and assess fitting accuracy. The presentation features allow users to seamlessly traverse the large amount of results, and the RD Simulator feature can help design future experiments as well as serve as a teaching tool for those unfamiliar with RD phenomena. Based on these innovative features, we expect that GUARDD will fill a well-defined gap in service of the RD NMR community.

  14. Analysis of Users' Searches of CD-ROM Databases in the National and University Library in Zagreb.

    Science.gov (United States)

    Jokic, Maja

    1997-01-01

    Investigates the search behavior of CD-ROM database users in Zagreb (Croatia) libraries: one group needed a minimum of technical assistance, and the other was completely independent. Highlights include the use of questionnaires and transaction log analysis and the need for end-user education. The questionnaire and definitions of search process…

  15. Comparative analysis from hydroelectric generation versus natural gas

    International Nuclear Information System (INIS)

    The aim of the work was to present a comparative analysis between hydroelectric generation and natural gas based on integrated resource planning and sustainable development. The introduced comparative analysis considers the financial aspects; the appropriated technology; and the social, environmental and political factors. The hydroelectric option it showed more advantageous than the thermoelectric. This result was independent of the enterprise scale

  16. Risk Analysis and Decision-Making Software Package (1997 Version) User Manual

    Energy Technology Data Exchange (ETDEWEB)

    Chung, F.T.H.

    1999-02-11

    This manual provides instructions for using the U.S. Department of Energy's (DOE) risk analysis and decision making software (1997 version) developed at BDM Petroleum Technologies by BDM-Oklahoma, Inc. for DOE, under contract No. DE-AC22-94PC91OO8. This software provides petroleum producers with a simple, handy tool for exploration and production risk analysis and decision-making. It collects useful risk analysis tools in one package so that users do not have to use several programs separately. The software is simple to use, but still provides many functions. The 1997 version of the software package includes the following tools: (1) Investment risk (Gambler's ruin) analysis; (2) Monte Carlo simulation; (3) Best fit for distribution functions; (4) Sample and rank correlation; (5) Enhanced oil recovery method screening; and (6) artificial neural network. This software package is subject to change. Suggestions and comments from users are welcome and will be considered for future modifications and enhancements of the software. Please check the opening screen of the software for the current contact information. In the future, more tools will be added to this software package. This manual includes instructions on how to use the software but does not attempt to fully explain the theory and algorithms used to create it.

  17. User's manual of a support system for human reliability analysis. JASPAHR Version 1.5

    International Nuclear Information System (INIS)

    Many kind of human reliability analysis (HRA) methods have been developed. However, analysts are required to be skillful so as to use them, and also required complicated works such as drawing event tree (ET) and calculation of uncertainty bounds. Moreover, each method is not so complete that only one method of them is not enough to evaluate human reliability. Therefore, a personal computer based support system JASPAHR for HRA has been developed to execute HRA practically and efficiently. The system supports HRAs with two different types of method, namely, simple method and detailed one. The former uses ASEP that is a simplified THERP-technique, and combined method of OAT and HRA-ET/DeBDA is used for the latter. Users can select a suitable method for their purpose. Human error probability data were collected and a database of them is provided to link with the support system. JASPAHR was improved such as the introduction of the INTENT method for misdiagnosis evaluation and the improvement of user interface. The report is a user's manual for modified JASPAHR (Ver. 1.5). (author)

  18. AsyncStageOut: Distributed user data management for CMS Analysis

    Science.gov (United States)

    Riahi, H.; Wildish, T.; Ciangottini, D.; Hernández, J. M.; Andreeva, J.; Balcas, J.; Karavakis, E.; Mascheroni, M.; Tanasijczuk, A. J.; Vaandering, E. W.

    2015-12-01

    AsyncStageOut (ASO) is a new component of the distributed data analysis system of CMS, CRAB, designed for managing users' data. It addresses a major weakness of the previous model, namely that mass storage of output data was part of the job execution resulting in inefficient use of job slots and an unacceptable failure rate at the end of the jobs. ASO foresees the management of up to 400k files per day of various sizes, spread worldwide across more than 60 sites. It must handle up to 1000 individual users per month, and work with minimal delay. This creates challenging requirements for system scalability, performance and monitoring. ASO uses FTS to schedule and execute the transfers between the storage elements of the source and destination sites. It has evolved from a limited prototype to a highly adaptable service, which manages and monitors the user file placement and bookkeeping. To ensure system scalability and data monitoring, it employs new technologies such as a NoSQL database and re-uses existing components of PhEDEx and the FTS Dashboard. We present the asynchronous stage-out strategy and the architecture of the solution we implemented to deal with those issues and challenges. The deployment model for the high availability and scalability of the service is discussed. The performance of the system during the commissioning and the first phase of production are also shown, along with results from simulations designed to explore the limits of scalability.

  19. AsyncStageOut: Distributed User Data Management for CMS Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Riahi, H. [CERN; Wildish, T. [Princeton U.; Ciangottini, D. [Perugia U.; Hernández, J. M. [Madrid, CIEMAT; Andreeva, J. [CERN; Balcas, J. [Vilnius U.; Karavakis, E. [CERN; Mascheroni, M. [INFN, Milan Bicocca; Tanasijczuk, A. J. [UC, San Diego; Vaandering, E. W. [Fermilab

    2015-12-23

    AsyncStageOut (ASO) is a new component of the distributed data analysis system of CMS, CRAB, designed for managing users' data. It addresses a major weakness of the previous model, namely that mass storage of output data was part of the job execution resulting in inefficient use of job slots and an unacceptable failure rate at the end of the jobs. ASO foresees the management of up to 400k files per day of various sizes, spread worldwide across more than 60 sites. It must handle up to 1000 individual users per month, and work with minimal delay. This creates challenging requirements for system scalability, performance and monitoring. ASO uses FTS to schedule and execute the transfers between the storage elements of the source and destination sites. It has evolved from a limited prototype to a highly adaptable service, which manages and monitors the user file placement and bookkeeping. To ensure system scalability and data monitoring, it employs new technologies such as a NoSQL database and re-uses existing components of PhEDEx and the FTS Dashboard. We present the asynchronous stage-out strategy and the architecture of the solution we implemented to deal with those issues and challenges. The deployment model for the high availability and scalability of the service is discussed. The performance of the system during the commissioning and the first phase of production are also shown, along with results from simulations designed to explore the limits of scalability.

  20. "I Want My Robot to Look for Food": Comparing Kindergartner's Programming Comprehension Using Tangible, Graphic, and Hybrid User Interfaces

    Science.gov (United States)

    Strawhacker, Amanda; Bers, Marina U.

    2015-01-01

    In recent years, educational robotics has become an increasingly popular research area. However, limited studies have focused on differentiated learning outcomes based on type of programming interface. This study aims to explore how successfully young children master foundational programming concepts based on the robotics user interface (tangible,…

  1. "I Want My Robot to Look for Food": Comparing Kindergartner's Programming Comprehension Using Tangible, Graphic, and Hybrid User Interfaces

    Science.gov (United States)

    Strawhacker, Amanda; Bers, Marina U.

    2015-01-01

    In recent years, educational robotics has become an increasingly popular research area. However, limited studies have focused on differentiated learning outcomes based on type of programming interface. This study aims to explore how successfully young children master foundational programming concepts based on the robotics user interface (tangible,…

  2. Who Are the Open Learners? A Comparative Study Profiling Non-Formal Users of Open Educational Resources

    Science.gov (United States)

    Farrow, Robert; de los Arcos, Beatriz; Pitt, Rebecca; Weller, Martin

    2015-01-01

    Open educational resources (OER) have been identified as having the potential to extend opportunities for learning to non-formal learners. However, little research has been conducted into the impact of OER on non-formal learners. This paper presents the results of a systematic survey of more than 3,000 users of open educational resources (OER).…

  3. Determinants of Hepatitis C Virus Treatment Completion and Efficacy in Drug Users Assessed by Meta-analysis

    OpenAIRE

    Dimova, Rositsa B; Zeremski, Marija; Jacobson, Ira M; Hagan, Holly; Des Jarlais, Don C.; Andrew H. Talal

    2012-01-01

    Based on meta-analysis, the higher the proportion of addiction-treated patients, the higher the treatment completion rate. The rate of sustained virologic response rate in drug users is very similar to that in the general population.

  4. Using participative inquiry in usability analysis to align a development team's mental model with its users' needs

    Science.gov (United States)

    Kneifel, A. A.; Guerrero, C.

    2003-01-01

    In this web site usability case study, two methods of participative inquiry are used to align a development team's objectives with their users' needs and to promote the team awareness of the benefit of qualitative usability analysis.

  5. Thermal APU/hydraulics analysis program. User's guide and programmer's manual

    Science.gov (United States)

    Deluna, T. A.

    1976-01-01

    The User's Guide information plus program description necessary to run and have a general understanding of the Thermal APU/Hydraulics Analysis Program (TAHAP) is described. This information consists of general descriptions of the APU/hydraulic system and the TAHAP model, input and output data descriptions, and specific subroutine requirements. Deck setups and input data formats are included and other necessary and/or helpful information for using TAHAP is given. The math model descriptions for the driver program and each of its supporting subroutines are outlined.

  6. VIPRE-01: a thermal-hydraulic analysis code for reactor cores. Volume 2. User's manual

    International Nuclear Information System (INIS)

    VIPRE (Versatile Internals and Component Program for Reactors; EPRI) has been developed for nuclear power utility thermal-hydraulic analysis applications. It is designed to help evaluate nuclear energy reactor core safety limits including minimum departure from nucleate boiling ratio (MDNBR), critical power ratio (CPR), fuel and clad temperatures, and coolant state in normal operation and assumed accident conditions. This volume (Volume 2: User's Manual) describes the input requirements of VIPRE and its auxiliary programs, SPECSET, ASP and DECCON, and lists the input instructions for each code

  7. User's guide for the PWR LOCA analysis capability of the WRAP-EM system

    Energy Technology Data Exchange (ETDEWEB)

    Beranek, F; Gregory, M V

    1980-02-01

    The Water Reactor Analysis Package (WRAP) has been expanded to provide the capability to analyze loss-of-coolant accidents (LOCAs) in both pressurized water reactors (PWRs) and boiling water reactors (BWRs) by using evaluation models (EMs). The input specifications for modules in the WRAP-EM system are presented in this document along with the JOSHUA input templates. This document, along with the WRAP user's guide, provides a step-by-step procedure for setting up a PWR data base for the WRAP-EM system. 12 refs.

  8. Designing and Evaluating Human-Robot Communication : Informing Design through Analysis of User Interaction

    OpenAIRE

    Green, Anders

    2009-01-01

    This thesis explores the design and evaluation of human-robot communication for service robots that use natural language to interact with people.  The research is centred around three themes: design of human-robot communication; evaluation of miscommunication in human-robot communication; and the analysis of spatial influence as empiric phenomenon and design element.  The method has been to put users in situations of future use through means of Hi-fi simulation. Several scenarios were enacted...

  9. User's manual and analysis methodology of probabilistic fracture mechanics analysis code PASCAL Ver.2 for reactor pressure vessel (Contract research)

    International Nuclear Information System (INIS)

    As a part of the aging structural integrity research for LWR components, the probabilistic fracture mechanics (PFM) analysis code PASCAL (PFM Analysis of Structural Components in Aging LWR) has been developed in JAEA. This code evaluates the conditional probabilities of crack initiation and fracture of a reactor pressure vessel (RPV) under transient conditions such as pressurized thermal shock (PTS). The development of the code has been aimed to improve the accuracy and reliability of analysis by introducing new analysis methodologies and algorithms considering the recent development in the fracture mechanics and computer performance. PASCAL Ver.1 has functions of optimized sampling in the stratified Monte Carlo simulation, elastic-plastic fracture criterion of the R6 method, crack growth analysis models for a semi-elliptical crack, recovery of fracture toughness due to thermal annealing and so on. Since then, under the contract between the Ministry of Economy, Trading and Industry of Japan and JAEA, we have continued to develop and introduce new functions into PASCAL Ver.2 such as the evaluation method for an embedded crack, KI database for a semi-elliptical crack considering stress discontinuity at the base/cladding interface, PTS transient database, and others. A generalized analysis method is proposed on the basis of the development of PASCAL Ver.2 and results of sensitivity analyses. Graphical user interface (GUI) including a generalized method as default values has been also developed for PASCAL Ver.2. This report provides the user's manual and theoretical background of PASCAL Ver.2. (author)

  10. arrayCGHbase: an analysis platform for comparative genomic hybridization microarrays

    Directory of Open Access Journals (Sweden)

    Moreau Yves

    2005-05-01

    Full Text Available Abstract Background The availability of the human genome sequence as well as the large number of physically accessible oligonucleotides, cDNA, and BAC clones across the entire genome has triggered and accelerated the use of several platforms for analysis of DNA copy number changes, amongst others microarray comparative genomic hybridization (arrayCGH. One of the challenges inherent to this new technology is the management and analysis of large numbers of data points generated in each individual experiment. Results We have developed arrayCGHbase, a comprehensive analysis platform for arrayCGH experiments consisting of a MIAME (Minimal Information About a Microarray Experiment supportive database using MySQL underlying a data mining web tool, to store, analyze, interpret, compare, and visualize arrayCGH results in a uniform and user-friendly format. Following its flexible design, arrayCGHbase is compatible with all existing and forthcoming arrayCGH platforms. Data can be exported in a multitude of formats, including BED files to map copy number information on the genome using the Ensembl or UCSC genome browser. Conclusion ArrayCGHbase is a web based and platform independent arrayCGH data analysis tool, that allows users to access the analysis suite through the internet or a local intranet after installation on a private server. ArrayCGHbase is available at http://medgen.ugent.be/arrayCGHbase/.

  11. Recent national trends in Salvia divinorum use and substance-use disorders among recent and former Salvia divinorum users compared with nonusers.

    Science.gov (United States)

    Wu, Li-Tzy; Woody, George E; Yang, Chongming; Li, Jih-Heng; Blazer, Dan G

    2011-04-01

    CONTEXT: Media and scientific reports have indicated an increase in recreational use of Salvia divinorum. Epidemiological data are lacking on the trends, prevalence, and correlates of S. divinorum use in large representative samples, as well as the extent of substance use and mental health problems among S. divinorum users. OBJECTIVE: To examine the national trend in prevalence of S. divinorum use and to identify sociodemographic, behavioral, mental health, and substance-use profiles of recent (past-year) and former users of S. divinorum. DESIGN: Analyses of public-use data files from the 2006-2008 United States National Surveys on Drug Use and Health (N = 166,453). SETTING: Noninstitutionalized individuals aged 12 years or older were interviewed in their places of residence. MAIN MEASURES: Substance use, S. divinorum, self-reported substance use disorders, criminality, depression, and mental health treatment were assessed by standardized survey questions administered by the audio computer-assisted self-interviewing method. RESULTS: Among survey respondents, lifetime prevalence of S. divinorum use had increased from 0.7% in 2006 to 1.3% in 2008 (an 83% increase). S. divinorum use was associated with ages 18-25 years, male gender, white or multiple race, residence of large metropolitan areas, arrests for criminal activities, and depression. S. divinorum use was particularly common among recent drug users, including users of lysergic acid diethylamide (53.7%), ecstasy (30.1%), heroin (24.2%), phencyclidine (22.4%), and cocaine (17.5%). Adjusted multinomial logistic analyses indicated polydrug use as the strongest determinant for recent and former S. divinorum use. An estimated 43.0% of past-year S. divinorum users and 28.9% of former S. divinorum users had an illicit or nonmedical drug-use disorder compared with 2.5% of nonusers. Adjusted logistic regression analyses showed that recent and former S. divinorum users had greater odds of having past-year depression and a substance-use disorder (alcohol or drugs) than past-year alcohol or drug users who did not use S. divinorum. CONCLUSION: S. divinorum use is prevalent among recent or active drug users who have used other hallucinogens or stimulants. The high prevalence of substance use disorders among recent S. divinorum users emphasizes the need to study health risks of drug interactions. PMID:21709724

  12. Analysis of Optimization Techniques to Improve User Response Time of Web Applications and Their Implementation for MOODLE

    OpenAIRE

    Manchanda, Priyanka

    2013-01-01

    Analysis of seven optimization techniques grouped under three categories (hardware, back-end, and front-end) is done to study the reduction in average user response time for Modular Object Oriented Dynamic Learning Environment (Moodle), a Learning Management System which is scripted in PHP5, runs on Apache web server and utilizes MySQL database software. Before the implementation of these techniques, performance analysis of Moodle is performed for varying number of concurrent users. The resul...

  13. LISA package user guide. Part III: SPOP (Statistical POst Processor). Uncertainty and sensitivity analysis for model output. Program description and user guide

    International Nuclear Information System (INIS)

    This manual is subdivided into three parts. In the third part, the SPOP (Statistical POst Processor) code is described as a tool to perform Uncertainty and Sensitivity Analyses on the output of a User implemented model. It has been developed at the joint Research Centre of Ispra as part of the LISA package. SPOP performs Sensitivity Analysis (SA) and Uncertainty Analysis (UA) on a sample output from a Monte Carlo simulation. The sample is generated by the User and contains values of the output variable (in the form of a time series) and values of the input variables for a set of different simulations (runs), which are realised by varying the model input parameters. The User may generate the Monte Carlo sample with the PREP pre-processor, another module of the LISA package. The SPOP code is completely written in FORTRAN 77 using structured programming. Among the tasks performed by the code are the computation of Tchebycheff and Kolmogorov confidence bounds on the output variable (UA), and the use of effective non-parametric statistics to rank the influence of model input parameters (SA). The statistics employed are described in the present manual. 19 refs., 16 figs., 2 tabs. Note: This PART III is a revised version of the previous EUR report N.12700EN (1990)

  14. ClimatePipes: User-Friendly Data Access, Manipulation, Analysis & Visualization of Community Climate Models

    Science.gov (United States)

    Chaudhary, A.; DeMarle, D.; Burnett, B.; Harris, C.; Silva, W.; Osmari, D.; Geveci, B.; Silva, C.; Doutriaux, C.; Williams, D. N.

    2013-12-01

    The impact of climate change will resonate through a broad range of fields including public health, infrastructure, water resources, and many others. Long-term coordinated planning, funding, and action are required for climate change adaptation and mitigation. Unfortunately, widespread use of climate data (simulated and observed) in non-climate science communities is impeded by factors such as large data size, lack of adequate metadata, poor documentation, and lack of sufficient computational and visualization resources. We present ClimatePipes to address many of these challenges by creating an open source platform that provides state-of-the-art, user-friendly data access, analysis, and visualization for climate and other relevant geospatial datasets, making the climate data available to non-researchers, decision-makers, and other stakeholders. The overarching goals of ClimatePipes are: - Enable users to explore real-world questions related to climate change. - Provide tools for data access, analysis, and visualization. - Facilitate collaboration by enabling users to share datasets, workflows, and visualization. ClimatePipes uses a web-based application platform for its widespread support on mainstream operating systems, ease-of-use, and inherent collaboration support. The front-end of ClimatePipes uses HTML5 (WebGL, Canvas2D, CSS3) to deliver state-of-the-art visualization and to provide a best-in-class user experience. The back-end of the ClimatePipes is built around Python using the Visualization Toolkit (VTK, http://vtk.org), Climate Data Analysis Tools (CDAT, http://uv-cdat.llnl.gov), and other climate and geospatial data processing tools such as GDAL and PROJ4. ClimatePipes web-interface to query and access data from remote sources (such as ESGF). Shown in the figure is climate data layer from ESGF on top of map data layer from OpenStreetMap. The ClimatePipes workflow editor provides flexibility and fine grained control, and uses the VisTrails (http://www.vistrails.org) workflow engine in the backend.

  15. Behind HumanBoost: Analysis of Users’ Trust Decision Patterns for Identifying Fraudulent Websites

    OpenAIRE

    Daisuke Miyamoto; Hiroaki Hazeyama; Youki Kadobayashi; Takeshi Takahashi

    2012-01-01

    This paper analyzes users’ trust decision patterns for detecting phishing sites. Our previous work proposed HumanBoost [1] which improves the accuracy of detecting phishing sites by using users’ Past Trust Decisions (PTDs). Web users are generally required to make trust decisions whenever their personal information is requested by a website. Human-Boostassumed that a database of Web user’s PTD would be transformed into a binary vector, representing phishing or not-phishing, and the binary vec...

  16. Three looks at users: a comparison of methods for studying digital library use. User studies, Digital libraries, Digital music libraries, Music, Information use, Information science, Contextual inquiry, Contextual design, User research, Questionnaires, Log file analysis

    Directory of Open Access Journals (Sweden)

    Mark Notess

    2004-01-01

    Full Text Available Compares three user research methods of studying real-world digital library usage within the context of the Variations and Variations2 digital music libraries at Indiana University. After a brief description of both digital libraries, each method is described and illustrated with findings from the studies. User satisfaction questionnaires were used in two studies, one of Variations (n=30 and the other of Variations2 (n=12. Second, session activity log files were examined for 175 Variations2 sessions using both quantitative and qualitative methods. The third method, contextual inquiry, is illustrated with results from field observations of four voice students' information usage patterns. The three methods are compared in terms of expertise required; time required to set up, conduct, and analyse resulting data; and the benefits derived. Further benefits are achieved with a mixed-methods approach, combining the strengths of the methods to answer questions lingering as a result of other methods.

  17. Comparing the Performance of Expert User Heuristics and an Integer Linear Program in Aircraft Carrier Deck Operations

    OpenAIRE

    Ryan, Jason C.; Banerjee, Ashis; Roy, Nicholas; Cummings, M.L.

    2013-01-01

    Planning operations across a number of domains can be considered as resource allocation problems with timing constraints. An unexplored instance of such a problem domain is the aircraft carrier flight deck, where, in current operations, replanning is done without the aid of any computerized decision support. Rather, veteran operators employ a set of experience-based heuristics to quickly generate new operating schedules. These expert user heuristics are neither codified nor evaluated by the U...

  18. Alice Meets Bob: A Comparative Usability Study of Wireless Device Pairing Methods for a "Two-User" Setting

    OpenAIRE

    Kumar, Arun; Saxena, Nitesh; Uzun, Ersin

    2009-01-01

    When users want to establish wireless communication between/among their devices, the channel has to be bootstrapped first. To prevent any malicious control of or eavesdropping over the communication, the channel is desired to be authenticated and confidential. The process of setting up a secure communication channel between two previously unassociated devices is referred to as "Secure Device Pairing". When there is no prior security context, e.g., shared secrets, common key servers or public ...

  19. [Regulating the internet: a comparative analysis of Brazil, Chile, Spain, the US, and France].

    Science.gov (United States)

    Segurado, Rosemary; Lima, Carolina Silva Mandú de; Ameni, Cauê S

    2015-12-01

    Global governance is of key concern in the current debate over the workings of the world's computer network, and Brazil has played a notable role in this process, especially after approval of the Marco Civil da Internet (law 12.965, april 23, 2014), which defines Brazil's regulatory framework for the internet. Dubbed the internet bill of rights, this law sets out the principles, guarantees, rights, and duties of internet users and providers in Brazil. Based on the fundamental categories of net neutrality, internet users' right to privacy, and copyright discussions from the perspective of intellectual property, the article offers a comparative analysis of regulations in five countries: Brazil, Chile, Spain, the US, and France. PMID:25119248

  20. Comparative analysis of myocardial revascularization methods for ischemic heart disease

    Directory of Open Access Journals (Sweden)

    Sinkeev M.S.

    2012-09-01

    Full Text Available The review of literature is devoted to the comparative analysis of clinical researches of efficiency and frequency of complications after application of surgical and medicamentous methods of treatment of coronary heart disease.

  1. Security analysis and enhancements of an effective biometric-based remote user authentication scheme using smart cards.

    Science.gov (United States)

    An, Younghwa

    2012-01-01

    Recently, many biometrics-based user authentication schemes using smart cards have been proposed to improve the security weaknesses in user authentication system. In 2011, Das proposed an efficient biometric-based remote user authentication scheme using smart cards that can provide strong authentication and mutual authentication. In this paper, we analyze the security of Das's authentication scheme, and we have shown that Das's authentication scheme is still insecure against the various attacks. Also, we proposed the enhanced scheme to remove these security problems of Das's authentication scheme, even if the secret information stored in the smart card is revealed to an attacker. As a result of security analysis, we can see that the enhanced scheme is secure against the user impersonation attack, the server masquerading attack, the password guessing attack, and the insider attack and provides mutual authentication between the user and the server. PMID:22899887

  2. COMPARATIVE ANALYSIS OF CONGESTION CONTROL MODELS FOR CELLULAR WIRELESS NETWORK

    Directory of Open Access Journals (Sweden)

    Falade A. J

    2015-08-01

    Full Text Available Cellular wireless systems like GSM suffer from congestion resulting in overall system degradation and poor service delivery. When the traffic demand in a geographical area is high, the input traffic rate will exceed thecapacity of the output lines. This work focused on homogenous wireless network (the network traffic and resource dimensioning that are statistically identical such that the network performance evaluation can be reduced to a system with single cell and a single traffic type. Such system can employa queuing model to evaluate the performance metric of a cell in terms of blocking probability. Five congestion control models were compared in the work to ascertain their peculiarities, they are Erlang B, Erlang C, Engset (cleared, Engset (buffered, and Bernoulli. To analyze the system, an aggregate onedimensional Markov chain wasderived, such that it describes a call arrival process under the assumption that it is Poisson distributed. The models were simulated and their results show varying performances, however the Bernoulli model (Pb5 tends to show a situation that allows more users access to the system and the congestion level remain unaffected despite increase in the number of users and the offered traffic into the system.

  3. Comparative Analysis of the Main Business Intelligence Solutions

    OpenAIRE

    Alexandra RUSANEANU

    2013-01-01

    Nowadays, Business Intelligence solutions are the main tools for analyzing and monitoring the company’s performance at any organizational level. This paper presents a comparative analysis of the most powerful Business Intelligence solutions using a set of technical features such as infrastructure of the platform, development facilities, complex analysis tools, interactive dashboards and scorecards, mobile integration and complex implementation of performance management methodologies.

  4. The Constant Comparative Analysis Method Outside of Grounded Theory

    Science.gov (United States)

    Fram, Sheila M.

    2013-01-01

    This commentary addresses the gap in the literature regarding discussion of the legitimate use of Constant Comparative Analysis Method (CCA) outside of Grounded Theory. The purpose is to show the strength of using CCA to maintain the emic perspective and how theoretical frameworks can maintain the etic perspective throughout the analysis. My…

  5. COMPARATIVE ANALYSIS OF CELEBRITY AND NON-CELEBRITY ADVERTISEMENT

    OpenAIRE

    Ammar Asad; Muhammad Naseem Hayat; Shafaqat Mehmood

    2013-01-01

    This study is undertaken to make a comparative analysis of celebrity advertisement and non-celebrity advertisement with respect to attitude toward advertisement, attitude toward brand, purchase intentions, and advertising attributes. For this purpose, a simple random sample of 200 students studying four different disciplines was taken from the Private University in Lahore. For econometric proof, reliability analysis, descriptive analysis, and independent sample T-test was used to interpret th...

  6. User's manual of SECOM2-DQFM. A computer code for seismic system reliability analysis

    International Nuclear Information System (INIS)

    This is the user's manual of SECOM2-DQFM, which is developed for seismic reliability analysis of complex engineering systems, such as nuclear power plants. Given that the seismic hazard curve of the location site of a plant and the fault tree / event tree (FT/ET) models of this plant were known, if the capacities and responses of components were available, the conditional occurrence probability (or frequency) of the top event of the FT models could be estimated with SECOM2-DQFM. In addition, the importance of each basic event as well as the occurrence frequency of each accident sequence could also be obtained. In order to evaluate the concurrent failure probability of multiple components due to earthquake, the method of Direct Quantification of Fault Tree using Monte Carlo simulation (DQFM) is adopted in SECOM2-DQFM. In this method, the capacity and response of each component are generated from their probability distributions. Then the capacities (as well as responses) of several components are made correlated following a given set of correlation rules. As a user manual of SECOM2-DQFM, this report is organized as follows. Chapter 1 gives a short summary of SEOM2-DQFM. Then how to combine and execute SECOM2-DQFM is described in Chapter 2. Further, how to prepare the original SECOM2 format input data is written in Chapter 3. Finally, how to prepare the NAMELIST format input data is given in Chapter 4. For the convenience of overseas users, the English version of this report is published as a separate report. (author)

  7. BPO crude oil analysis data base user`s guide: Methods, publications, computer access correlations, uses, availability

    Energy Technology Data Exchange (ETDEWEB)

    Sellers, C.; Fox, B.; Paulz, J.

    1996-03-01

    The Department of Energy (DOE) has one of the largest and most complete collections of information on crude oil composition that is available to the public. The computer program that manages this database of crude oil analyses has recently been rewritten to allow easier access to this information. This report describes how the new system can be accessed and how the information contained in the Crude Oil Analysis Data Bank can be obtained.

  8. User's manual of SECOM2: a computer code for seismic system reliability analysis

    International Nuclear Information System (INIS)

    This report is the user's manual of seismic system reliability analysis code SECOM2 (Seismic Core Melt Frequency Evaluation Code Ver.2) developed at the Japan Atomic Energy Research Institute for systems reliability analysis, which is one of the tasks of seismic probabilistic safety assessment (PSA) of nuclear power plants (NPPs). The SECOM2 code has many functions such as: Calculation of component failure probabilities based on the response factor method, Extraction of minimal cut sets (MCSs), Calculation of conditional system failure probabilities for given seismic motion levels at the site of an NPP, Calculation of accident sequence frequencies and the core damage frequency (CDF) with use of the seismic hazard curve, Importance analysis using various indicators, Uncertainty analysis, Calculation of the CDF taking into account the effect of the correlations of responses and capacities of components, and Efficient sensitivity analysis by changing parameters on responses and capacities of components. These analyses require the fault tree (FT) representing the occurrence condition of the system failures and core damage, information about response and capacity of components and seismic hazard curve for the NPP site as inputs. This report presents the models and methods applied in the SECOM2 code and how to use those functions. (author)

  9. Life-Cycle Cost-Benefit (LCCB) Analysis of Bridges from a User and Social Point of View

    DEFF Research Database (Denmark)

    Thoft-Christensen, Palle

    2009-01-01

    During the last two decades, important progress has been made in the life-cycle cost-benefit (LCCB) analysis of structures, especially offshore platforms, bridges and nuclear installations. Due to the large uncertainties related to the deterioration, maintenance, and benefits of such structures...... present and discuss some of these problems from a user and social point of view. A brief presentation of a preliminary study of the importance of including benefits in life-cycle cost-benefit analysis in management systems for bridges is shown. Benefits may be positive as well as negative from the user...... point of view. In the paper, negative benefits (user costs) are discussed in relation to the maintenance of concrete bridges. A limited number of excerpts from published reports that are related to the importance of estimating user costs when repairs of bridges are planned, and when optimized strategies...

  10. Remote analysis of user sessions for usability evaluation of web sites

    OpenAIRE

    Paganelli, Laila; Patern?, Fabio

    2001-01-01

    This paper describes how it is possible to automatically support usability evaluation of Web sites using user session logs and task models describing how the interface design assumes that activities should be performed in order to reach user goals.

  11. TRACE Project. Deliverable 1.2. Road users and accident causation. Part 2: In-depth accident causation analysis

    OpenAIRE

    Molinero, A.; PERANDONES, JM; Hermitte, T.; Grimaldi, A.; Gwehengerber, J.; Daschner, D.; Barrios, JM; Aparicio, A.; Schick, S.; Van Elslande, P.; Fouquet, K.

    2008-01-01

    This report aims to present the final results of the descriptive statistical, in-depth and risk analysis performed within the first TRACE Work Package, 'WP1-Road Users', in order to identify the main problems and the magnitude of these problems related to accident causation and risk factors for the following five different road user groups: passenger car drivers; powered two wheelers riders; van, bus and truck drivers; pedestrian and cyclists and, finally, elderly people and gender classifica...

  12. MeV+R: using MeV as a graphical user interface for Bioconductor applications in microarray analysis

    OpenAIRE

    Chu, Vu T; Gottardo, Raphael; Raftery, Adrian E; Bumgarner, Roger E.; Yeung, Ka Yee

    2008-01-01

    We present MeV+R, an integration of the JAVA MultiExperiment Viewer program with Bioconductor packages. This integration of MultiExperiment Viewer and R is easily extensible to other R packages and provides users with point and click access to traditionally command line driven tools written in R. We demonstrate the ability to use MultiExperiment Viewer as a graphical user interface for Bioconductor applications in microarray data analysis by incorporating three Bioconductor packages, RAMA, BR...

  13. Comparative analysis of traditional and alternative energy sources

    International Nuclear Information System (INIS)

    The presented thesis with designation of Comparing analysis of traditional and alternative energy resources includes, on basis of theoretical information source, research in firm, internal data, trends in company development and market, description of the problem and its application. Theoretical information source is dedicated to the traditional and alternative energy resources, reserves of it, trends in using and development, the balance of it in the world, EU and in Slovakia as well. Analysis of the thesis is reflecting profile of the company and the thermal pump market evaluation using General Electric method. While the company is implementing, except other products, the thermal pumps on geothermal energy base and surround energy base (air), the mission of the comparing analysis is to compare traditional energy resources with thermal pump from the ecological, utility and economic side of it. The results of the comparing analysis are resumed in to the SWOT analysis. The part of the thesis includes t he questionnaire offer for effectiveness improvement and customer satisfaction analysis, and expected possibilities of alternative energy resources assistance (benefits) from the government and EU funds. (authors)

  14. Comparative analysis of traditional and alternative energy sources

    Directory of Open Access Journals (Sweden)

    Adriana Csikósová

    2008-11-01

    Full Text Available The presented thesis with designation of Comparing analysis of traditional and alternative energy resources includes, on basisof theoretical information source, research in firm, internal data, trends in company development and market, descriptionof the problem and its application. Theoretical information source is dedicated to the traditional and alternative energy resources,reserves of it, trends in using and development, the balance of it in the world, EU and in Slovakia as well. Analysis of the thesisis reflecting profile of the company and the thermal pump market evaluation using General Electric method. While the companyis implementing, except other products, the thermal pumps on geothermal energy base and surround energy base (air, the missionof the comparing analysis is to compare traditional energy resources with thermal pump from the ecological, utility and economic sideof it. The results of the comparing analysis are resumed in to the SWOT analysis. The part of the thesis includes he questionnaire offerfor effectiveness improvement and customer satisfaction analysis, and expected possibilities of alternative energy resources assistance(benefits from the government and EU funds.

  15. Bitmap indices for fast end-user physics analysis in ROOT

    International Nuclear Information System (INIS)

    Most physics analysis jobs involve multiple selection steps on the input data. These selection steps are called cuts or queries. A common strategy to implement these queries is to read all input data from files and then process the queries in memory. In many applications the number of variables used to define these queries is a relative small portion of the overall data set therefore reading all variables into memory takes unnecessarily long time. In this paper we describe an integration effort that can significantly reduce this unnecessary reading by using an efficient compressed bitmap index technology. The primary advantage of this index is that it can process arbitrary combinations of queries very efficiently, while most other indexing technologies suffer from the 'curse of dimensionality' as the number of queries increases. By integrating this index technology with the ROOT analysis framework, the end-users can benefit from the added efficiency without having to modify their analysis programs. Our performance results show that for multi-dimensional queries, bitmap indices outperform the traditional analysis method up to a factor of 10

  16. GRPAUT: a program for Pu isotopic analysis (a user's guide). ISPO task A.76

    International Nuclear Information System (INIS)

    GRPAUT is a modular program for performing automated Pu isotopic analysis supplied to the International Atomic Energy Agency (IAEA) per ISPO Task A.76. Section I of this user's guide for GRPAUT presents an overview of the various programs and disk files that are used in performing a Pu isotopic analysis. Section II describes the program GRFEDT which is used in creating and editing the analysis parameter file that contains all the spectroscopic information needed at runtime by GRPAUT. An example of the dialog and output of GRFEDT is shown in Appendix B. Section III describes the operation of the various GRPAUT modules: GRPNL2, the peak stripping module; EFFCH2, the efficiency calculation module; and ISOAUT, the isotopic calculation module. (A description of the peak fitting methodology employed by GRPNL2 is presented in Appendix A.) Finally, Section IV outlines the procedure for determining the peak shape constants for a detector system and describes the operation of the program used to create and edit the peak shape parameter files. An output of GRPAUT, showing an example of a complete isotopic analysis, is presented in Appendix C. Source listings of all the Fortran programs supplied to the Agency under ISPO Task A.76 are contained in Appendix E

  17. User friendly analysis of MR investigations of the cerebral perfusion: Windows trademark -based image processing

    International Nuclear Information System (INIS)

    Purpose: Quick and user-friendly analysis of perfusion and diffusion weighted MRI by means of interactive computer software. Method: A Windows trademark -based software was developed for analysis of perfusion (PWI) and diffusion (DWI) MR imaging. The computer program was developed in the programming language C++ using optimized algorithms, so that a high computing speed on Win95/98/NT systems is achieved. The established SVD algorithms of Oestergaard et al. for quantitative perfusion analysis were implemented. Results: Perfusion parameter maps of the cerebral blood flow (rCBF), the mean transit time (MTT) and the cerebral blood volume (rCBV) in consideration of the arterial input function (AIF) can be calculated and visualized using color tables. Additionally, the calculation of ''time-to-peak'' maps (TTP) and of maps of the percentage change in signal intensity (PC) is possible. The analysis of n = 10 normal persons shows perfusion values that agree with those found in the literature. Discussion: With the computer program developed here color-coded perfusion parameter maps can be calculated easily. Because of the high computing speed it is possible to get information about tissue perfusion on the basis of the large MR data sets even in acute investigations. (orig.)

  18. Bitmap Indices for Fast End-User Physics Analysis in ROOT

    Energy Technology Data Exchange (ETDEWEB)

    Stockinger, Kurt; Wu, Kesheng; Brun, Rene; Canal, Philippe

    2005-07-26

    Most physics analysis jobs involve multiple selection steps on the input data. These selection steps are called ''cuts'' or ''queries''. A common strategy to implement these queries is to read all input data from files and then process the queries in memory. In many applications the number of variables used to define these queries is a relative small portion of the overall data set therefore reading all variables into memory takes unnecessarily long time. In this paper we describe an integration effort that can significantly reduce this unnecessary reading by using an efficient compressed bitmap index technology. The primary advantage of this index is that it can process arbitrary combinations of queries very efficiently, while most other indexing technologies suffer from the ''curse of dimensionality'' as the number of queries increases. By integrating this index technology with the ROOT analysis framework, the end-users can benefit from the added efficiency without having to modify their analysis programs. Our performance results show that for multi-dimensional queries, bitmap indices outperform the traditional analysis method up to a factor of 10.

  19. User's manuals of probabilistic fracture mechanics analysis code for aged piping, PASCAL-SP

    International Nuclear Information System (INIS)

    As a part of research on the material degradation and structural integrity assessment for aged LWR components, a PFM (Probabilistic Fracture Mechanics) analysis code PASCAL-SP (PFM Analysis of Structural Components in Aging LWR - Stress Corrosion Cracking at Welded Joints of Piping) has been developed. This code evaluates the failure probabilities at welded joints of aged piping by a Monte Carlo method. PASCAL-SP treats stress corrosion cracking (SCC) and fatigue crack growth in piping, according to the approaches of NISA and JSME FFS Code. The development of the code has been aimed to improve the accuracy and reliability of analysis by introducing new analysis methodologies and algorithms considering the latest knowledge in the SCC assessment and fracture criteria of piping. In addition, the accuracy of flaw detection and sizing at in-service inspection and residual stress distribution were modeled based on experimental data and introduced into PASCAL-SP. This code has been developed for a cross-check use by the regulatory body in Japan. In addition to this, this code can also be used for a research purpose by researchers in academia and industries. This report provides the user's manual and theoretical background of the code. (author)

  20. User guide for data analysis of estimation algorithm of loose parts

    International Nuclear Information System (INIS)

    Generally, it is known that loose parts in the reactor coolant systems (RCS) bring serious damage into the system components and impede the normal function of the system. So, it is necessary to rapidly respond when the impact event has occurred. But the existing system is known to only alarm information for the operator. The report presented the user guide of the estimation algorithm needed to diagnosis and proposed how to use the impact test and actual impact of Database. The Database will be used to compare the test data with the actual data when the impact event has occurred. Appendix I include that the estimation algorithm applied to the impact test data and actual impact data is proposed. Appendix II is represented to the report about the actual impact data sent to the operator, until now. Appendix III shows the flowchart of LPMS's Monitoring and diagnosis at each plant

  1. GENLPLOT: An interactive program for display and analysis of data: User's manual

    International Nuclear Information System (INIS)

    GENLPLOT is an interactive program written in FORTRAN and running under VAX/VMS that enables technicians, scientists, engineers, and other users to quickly and accurately examine and analyze data. The current version utilizes the GRAPAC4 plot package, reads a standard input file or permits direct data entry, and is optimized for use with data stored in MDS databases. This program has been the principal interactive data analysis tool used on the Tara Tandem Mirror Experiment and on the Constance II Mirror Experiment. The program is menu driven with options selected on command lines distinguished by various prompts. Subsequent changes and additions to the program will be indicated by a version number greater than that appearing in the welcome message and will be documented in the appropriate menu(s)

  2. The Quantitative Analysis of User Behavior Online - Data, Models and Algorithms

    Science.gov (United States)

    Raghavan, Prabhakar

    By blending principles from mechanism design, algorithms, machine learning and massive distributed computing, the search industry has become good at optimizing monetization on sound scientific principles. This represents a successful and growing partnership between computer science and microeconomics. When it comes to understanding how online users respond to the content and experiences presented to them, we have more of a lacuna in the collaboration between computer science and certain social sciences. We will use a concrete technical example from image search results presentation, developing in the process some algorithmic and machine learning problems of interest in their own right. We then use this example to motivate the kinds of studies that need to grow between computer science and the social sciences; a critical element of this is the need to blend large-scale data analysis with smaller-scale eye-tracking and "individualized" lab studies.

  3. Exploiting all phone media? A multidimensional network analysis of phone users' sociality

    CERN Document Server

    Zignani, Matteo; Gaitto, Sabrina; Rossi, Gian Paolo

    2014-01-01

    The growing awareness that human communications and social interactions are assuming a stratified structure, due to the availability of multiple techno-communication channels, including online social networks, mobile phone calls, short messages (SMS) and e-mails, has recently led to the study of multidimensional networks, as a step further the classical Social Network Analysis. A few papers have been dedicated to develop the theoretical framework to deal with such multiplex networks and to analyze some example of multidimensional social networks. In this context we perform the first study of the multiplex mobile social network, gathered from the records of both call and text message activities of millions of users of a large mobile phone operator over a period of 12 weeks. While social networks constructed from mobile phone datasets have drawn great attention in recent years, so far studies have dealt with text message and call data, separately, providing a very partial view of people sociality expressed on p...

  4. Light water reactor fuel analysis code FEMAXI-IV(Ver.2). Detailed structure and user's manual

    International Nuclear Information System (INIS)

    A light water reactor fuel behavior analysis code FEMAXI-IV(Ver.2) was developed as an improved version of FEMAXI-IV. Development of FEMAXI-IV has been already finished in 1992, though a detailed structure and input manual of the code have not been open to users yet. Here, the basic theories and structure, the models and numerical solutions applied to FEMAXI-IV(Ver.2), and the material properties adopted in the code are described in detail. In FEMAXI-IV(Ver.2), programming bugs in previous FEMAXI-IV were eliminated, renewal of the pellet thermal conductivity was performed, and a model of thermal-stress restraint on FP gas release was incorporated. For facilitation of effective and wide-ranging application of the code, methods of input/output of the code are also described in detail, and sample output is included. (author)

  5. Relationship between methamphetamine use history and segmental hair analysis findings of MA users.

    Science.gov (United States)

    Han, Eunyoung; Lee, Sangeun; In, Sanghwan; Park, Meejung; Park, Yonghoon; Cho, Sungnam; Shin, Junguk; Lee, Hunjoo

    2015-09-01

    The aim of this study was to investigate the relationship between methamphetamine (MA) use history and segmental hair analysis (1 and 3cm sections) and whole hair analysis results in Korean MA users in rehabilitation programs. Hair samples were collected from 26 Korean MA users. Eleven of the 26 subjects used cannabis with MA and two used cocaine, opiates, and MDMA with MA. Self-reported single dose of MA from the 26 subjects ranged from 0.03 to 0.5g/one time. Concentrations of MA and its metabolite amphetamine (AP) in hair were determined by gas chromatography mass spectrometry (GC/MS) after derivatization. The method used was well validated. Qualitative analysis from all 1cm sections (n=154) revealed a good correlation between positive or negative results for MA in hair and self-reported MA use (69.48%, n=107). In detail, MA results were positive in 66 hair specimens of MA users who reported administering MA, and MA results were negative in 41 hair specimens of MA users who denied MA administration in the corresponding month. Test results were false-negative in 10.39% (n=16) of hair specimens and false-positive in 20.13% (n=31) of hair specimens. In false positive cases, it is considered that after MA cessation it continued to be accumulated in hair still, while in false negative cases, self-reported histories showed a small amount of MA use or MA use 5-7 months previously. In terms of quantitative analysis, the concentrations of MA in 1 and 3cm long hair segments and in whole hair samples ranged from 1.03 to 184.98 (mean 22.01), 2.26 to 89.33 (mean 18.71), and 0.91 to 124.49 (mean 15.24)ng/mg, respectively. Ten subjects showed a good correlation between MA use and MA concentration in hair. Correlation coefficient (r) of 7 among 10 subjects ranged from 0.71 to 0.98 (mean 0.85). Four subjects showed a low correlation between MA use and MA concentration in hair. Correlation coefficient (r) of 4 subjects ranged from 0.36 to 0.55. Eleven subjects showed a poor correlation between MA use and MA concentration in hair. Correlation between MA use and MA concentration in hair of remaining one subject could not be determined or calculated. In this study, the correlation between accurate MA use histories obtained by psychiatrists and well-trained counselors and MA concentrations in hair was shown. This report provides objective scientific findings that should considerably aid the interpretation of forensic results and of the results of trials related to MA use. PMID:26197349

  6. A Comparative Analysis Of Web Page RankingAlgorithms

    Directory of Open Access Journals (Sweden)

    Bhanudas Suresh Panchabhai

    2013-11-01

    Full Text Available This research paper deals with analysis and comparison of web page ranking algorithms used for Information Retrieval based on various parameter to find out their Advantages and limitations for the ranking of the web pages .On the basis of analysis of different web page ranking algorithms, a comparative study is done to find out their relative strengths and limitations to find out the further scope of research in web page ranking algorithm. Algorithms like Page Rank (PR, WPR (Weighted Page Rank, HITS (Hyperlink-Induced Topic Search, and Distance Rank and Eigen Rumor algorithms are discussed and compared.

  7. Informatics in Education and Koli Calling: a Comparative Analysis

    Directory of Open Access Journals (Sweden)

    SIMON

    2009-04-01

    Full Text Available The journal Informatics in Education and the conference Koli Calling are compared, starting with Simon's system for the classification of computing education papers and going on to conduct a brief bibliometric analysis of the authors of papers in both publications, including their repeat rates and the countries from which they come. The analysis finds that despite their different natures, the Lithuanian journal and the Finnish conference are highly comparable in many respects. The broad conclusion is that the two publications work well together - but it would be good to see some Lithuanian authors contributing papers to Koli Calling.

  8. Comparative analysis of equalization methods for SC-FDMA

    OpenAIRE

    Dogadaev, Anton Konstantinovich; Kozlov, Alexander; Ukhanova, Ann

    2010-01-01

    In this paper we introduce comparative analysis for different types of equalization schemes, based on the minimum mean square error (MMSE) optimization. The following types of equalizers were compared: linear equalization, decision feedback equalization (DFE) and turbo equalization. Performance and complexity of these schemes were tested for Single Carrier Frequency Division Multiple Access (SC-FDMA) system with Single Input Single Output (SISO) antenna configuration. SC-FDMA is a common tech...

  9. A comparative proteomic analysis during urodele lens regeneration

    OpenAIRE

    Roddy, Meagan; Fox, Timothy P.; McFadden, Jonathan P.; Nakamura, Kenta; Del Rio-Tsonis, Katia; Tsonis, Panagiotis A.

    2008-01-01

    To examine underlying mechanisms of urodele lens regeneration we have employed a proteomic analysis of 650 proteins involved in several signaling pathways. We compared expression of these proteins between the regeneration-competent dorsal iris and the regeneration-incompetent ventral iris in the newt. After a series of screenings we selected several proteins to evaluate their expression quantitatively on immunoblots. We then used these selected proteins to compare their expression between the...

  10. Project risk simulation methods – a comparative analysis

    OpenAIRE

    Constanța-Nicoleta BODEA; Augustin PURNUȘ

    2012-01-01

    Effective risk management provides a solid basis for decisionmaking in projects, bringing important benefits. While the financial and economical crisis is present at the global level and the competition in the market is more and more aggressive, the interest in project risk management increases. The paper presents a comparative analysis of the effectiveness of two quantitative risk analysis methods, Monte Carlo simulation and the Three Scenario approach. Two experiments are designed based on ...

  11. A Comparative Financial Performance Analysis of Bangladeshi Private Commercial Banks

    OpenAIRE

    Mohammad Omar Faruk; Rokshana Alam

    2014-01-01

    The ratio analysis is considered as a simple and preferable way to understand the financial performance of a financial organization. We have chosen top two operating profit generating banks from each of the three generation of banking in Bangladesh to compare the financial performance from 2005 to 2008 with Prime Bank Limited (PBL). For analyzing we have used the profitability ratios, liquidity ratios and efficiency ratios, risk measures ratio and DuPont analysis. The measurement explores tha...

  12. Gap Analysis Comparing LLNL ISMS and ISO 14001

    Energy Technology Data Exchange (ETDEWEB)

    Doerr, T B

    2004-08-09

    A gap analysis was conducted comparing the Lawrence Livermore National Laboratory (LLNL) Integrated Safety Management System (ISMS) with the international standard ISO 14001 Environmental Management System and with Department of Energy (DOE) Order 450.1. This analysis was accomplished as part of LLNL's assessment of the impacts of adopting DOE Order 450.1 and comprises a portion of its continuous improvement efforts under ISMS.

  13. User's manual for seismic analysis code 'SONATINA-2V'

    Energy Technology Data Exchange (ETDEWEB)

    Hanawa, Satoshi; Iyoku, Tatsuo [Japan Atomic Energy Research Inst., Oarai, Ibaraki (Japan). Oarai Research Establishment

    2001-08-01

    The seismic analysis code, SONATINA-2V, has been developed to analyze the behavior of the HTTR core graphite components under seismic excitation. The SONATINA-2V code is a two-dimensional computer program capable of analyzing the vertical arrangement of the HTTR graphite components, such as fuel blocks, replaceable reflector blocks, permanent reflector blocks, as well as their restraint structures. In the analytical model, each block is treated as rigid body and is restrained by dowel pins which restrict relative horizontal movement but allow vertical and rocking motions between upper and lower blocks. Moreover, the SONATINA-2V code is capable of analyzing the core vibration behavior under both simultaneous excitations of vertical and horizontal directions. The SONATINA-2V code is composed of the main program, pri-processor for making the input data to SONATINA-2V and post-processor for data processing and making the graphics from analytical results. Though the SONATINA-2V code was developed in order to work in the MSP computer system of Japan Atomic Energy Research Institute (JAERI), the computer system was abolished with the technical progress of computer. Therefore, improvement of this analysis code was carried out in order to operate the code under the UNIX machine, SR8000 computer system, of the JAERI. The users manual for seismic analysis code, SONATINA-2V, including pri- and post-processor is given in the present report. (author)

  14. Comparative analysis of equalization methods for SC-FDMA

    DEFF Research Database (Denmark)

    Dogadaev, Anton Konstantinovich; Kozlov, Alexander; Ukhanova, Ann

    2010-01-01

    In this paper we introduce comparative analysis for different types of equalization schemes, based on the minimum mean square error (MMSE) optimization. The following types of equalizers were compared: linear equalization, decision feedback equalization (DFE) and turbo equalization. Performance and...... applied to find the appropriate equalization algorithm to be used in the Uplink channel of the LTE – the famous standard in 4G telecommunications. Simulation results in the end in this paper show bit error ratio (BER) and modulation error ratio (MER) for compared schemes....

  15. Privacy - an Issue for eLearning? A Trend Analysis Reflecting the Attitude of European eLearning Users

    CERN Document Server

    Borcea-Pfitzmann, Katrin

    2007-01-01

    Availing services provided via the Internet became a widely accepted means in organising one's life. Beside others, eLearning goes with this trend as well. But, while employing Internet service makes life more convenient, at the same time, it raises risks with respect to the protection of the users' privacy. This paper analyses the attitudes of eLearning users towards their privacy by, initially, pointing out terminology and legal issues connected with privacy. Further, the concept and implementation as well as a result analysis of a conducted study is presented, which explores the problem area from different perspectives. The paper will show that eLearning users indeed care for the protection of their personal information when using eLearning services. However, their attitudes and behaviour slightly differ. In conclusion, we provide first approaches of assisting possibilities for users how to resolve the difference of requirements and their actual activities with respect to privacy protection.

  16. Does Offline Political Segregation Affect the Filter Bubble? An Empirical Analysis of Information Diversity for Dutch and Turkish Twitter Users

    CERN Document Server

    Bozdag, Engin; Houben, Geert-Jan; Warnier, Martijn

    2014-01-01

    From a liberal perspective, pluralism and viewpoint diversity are seen as a necessary condition for a well-functioning democracy. Recently, there have been claims that viewpoint diversity is diminishing in online social networks, putting users in a "bubble", where they receive political information which they agree with. The contributions from our investigations are fivefold: (1) we introduce different dimensions of the highly complex value viewpoint diversity using political theory; (2) we provide an overview of the metrics used in the literature of viewpoint diversity analysis; (3) we operationalize new metrics using the theory and provide a framework to analyze viewpoint diversity in Twitter for different political cultures; (4) we share our results for a case study on minorities we performed for Turkish and Dutch Twitter users; (5) we show that minority users cannot reach a large percentage of Turkish Twitter users. With the last of these contributions, using theory from communication scholars and philoso...

  17. Comparing constitutional protection of human rights in Europe: what can we learn from comparative analysis?:

    OpenAIRE

    Ferle, Tina; Kejžar, Barbara; Novak, Aleš; Pirc, Janez; Šetinc, Manca

    2007-01-01

    The article aims to demonstrate the usefulness of comparative method in the field of constitutional law, in particular in the field of human rights provisions at the constitutional level. It tries to disprove the common assumption that the human rights provisions in different constitutions are almost identical and that the legal unification is in that respect almost complete. The analysis of the European constitutions unveils a somewhat different picture. In part, that assumption is correct. ...

  18. Recent national trends in Salvia divinorum use and substance-use disorders among recent and former Salvia divinorum users compared with nonusers

    Directory of Open Access Journals (Sweden)

    Blazer DG

    2011-04-01

    Full Text Available Li-Tzy Wu1, George E Woody2, Chongming Yang3, Jih-Heng Li4, Dan G Blazer11Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA; 2Department of Psychiatry, University of Pennsylvania and Treatment Research Institute, Philadelphia, PA, USA; 3Social Science Research Institute, Duke University, Durham, NC, USA; 4College of Pharmacy, Kaohsiung Medical University, Kaohsiung, TaiwanContext: Media and scientific reports have indicated an increase in recreational use of Salvia divinorum. Epidemiological data are lacking on the trends, prevalence, and correlates of S. divinorum use in large representative samples, as well as the extent of substance use and mental health problems among S. divinorum users.Objective: To examine the national trend in prevalence of S. divinorum use and to identify sociodemographic, behavioral, mental health, and substance-use profiles of recent (past-year and former users of S. divinorum.Design: Analyses of public-use data files from the 2006–2008 United States National Surveys on Drug Use and Health (N = 166,453.Setting: Noninstitutionalized individuals aged 12 years or older were interviewed in their places of residence.Main measures: Substance use, S. divinorum, self-reported substance use disorders, criminality, depression, and mental health treatment were assessed by standardized survey questions administered by the audio computer-assisted self-interviewing method.Results: Among survey respondents, lifetime prevalence of S. divinorum use had increased from 0.7% in 2006 to 1.3% in 2008 (an 83% increase. S. divinorum use was associated with ages 18–25 years, male gender, white or multiple race, residence of large metropolitan areas, arrests for criminal activities, and depression. S. divinorum use was particularly common among recent drug users, including users of lysergic acid diethylamide (53.7%, ecstasy (30.1%, heroin (24.2%, phencyclidine (22.4%, and cocaine (17.5%. Adjusted multinomial logistic analyses indicated polydrug use as the strongest determinant for recent and former S. divinorum use. An estimated 43.0% of past-year S. divinorum users and 28.9% of former S. divinorum users had an illicit or nonmedical drug-use disorder compared with 2.5% of nonusers. Adjusted logistic regression analyses showed that recent and former S. divinorum users had greater odds of having past-year depression and a substance-use disorder (alcohol or drugs than past-year alcohol or drug users who did not use S. divinorum.Conclusion: S. divinorum use is prevalent among recent or active drug users who have used other hallucinogens or stimulants. The high prevalence of substance use disorders among recent S. divinorum users emphasizes the need to study health risks of drug interactions.Keywords: alcohol-use disorders, drug-use disorders, ecstasy, lysergic acid diethylamide, major depression, multiple race, nicotine dependence, phencyclidine, prescription drug abuse

  19. Comparable analysis methodology of CCHP based on distributed energy system

    International Nuclear Information System (INIS)

    Highlights: • A comparable assessment methodology on DES-based CCHP is proposed. • Energy cost of low valued heat consumed by CCHP is calculated based on energy grade. • DES-based hot-water-driven cooling system is more efficient than electric chillers. - Abstract: Energy and environmental issues have become increasingly prominent in the world. Distributed energy systems (DESs) and the combined cooling, heating, and power (CCHP) have been applied in the world. However, the evaluation of DESs and CCHP performance based on primary energy consumption is in dispute. Moreover, pursuing high performance of separate cooling/heating system is not beneficial for popularizing low-exergy cooling/heating technology in the field of DES in China. This study uses the pure-power-generation working condition of the DES as a baseline condition to conduct comparable analysis on DES-based CCHP according to energy grade. It is found that equivalent power consumption of steam and hot water consumed for CCHP is the power-generation capacity reduction of the DES compared with the baseline condition of the DES. DES-based steam and hot-water heating systems can save comparable energy cost (a sum of the equivalent and the direct power consumptions) by approximately 72% and 98%, respectively, compared with natural-gas-fired boilers. Hot-water-driven and steam-driven absorption cooling system based on the DES reach comparable coefficient of performances (a ratio of cooling capacity to comparable energy cost) of approximately 11.4 and 5.7. Thus, the proposed analysis methodology uses the power-generation capacity as benchmark to conduct energy grade analysis, and can more comparably and reasonably identify energy-saving capability of DES-based CCHP

  20. A Comparative Analysis of Three Unique Theories of Organizational Learning

    Science.gov (United States)

    Leavitt, Carol C.

    2011-01-01

    The purpose of this paper is to present three classical theories on organizational learning and conduct a comparative analysis that highlights their strengths, similarities, and differences. Two of the theories -- experiential learning theory and adaptive -- generative learning theory -- represent the thinking of the cognitive perspective, while…

  1. A Comparative Analysis Between Virginia's and North Carolina's Wine Industries

    OpenAIRE

    Ferreira, Gustavo

    2002-01-01

    This paper does a comparative analysis of the wine industry in Virginia and North Carolina by looking at four specific issues: (1) grape varieties and viticultural areas in both states; (2) marketing and distribution issues; (3) wine-related tourism; and (4) shortages of skilled labor.

  2. INSTITUTIONS AND VALUES OF ROMANIANS – COMPARATIVE ANALYSIS OF HISTORICAL REGIONS

    Directory of Open Access Journals (Sweden)

    Iacobuta Andreea-Oana

    2009-05-01

    Full Text Available Starting from the results of a national survey, a questionnaire on the values of Romanians was applied in April 2008 which was used for a comparative analysis of historical regions of Romania: Moldova, Bucharest, Dobrogea, Transilvania and Muntenia. Ou

  3. Sequence and comparative analysis of Leuconostoc dairy bacteriophages

    DEFF Research Database (Denmark)

    Kot, Witold; Hansen, Lars Henrik; Neve, Horst; Hammer, Karin; Jacobsen, Susanne; Pedersen, Per D.; Sørensen, Søren J.; Heller, Knut J.; Vogensen, Finn K.

    2014-01-01

    mesenteroides or Leuconostoc pseudomesenteroides strains. The phages have dsDNA genomes with sizes ranging from 25.7 to 28.4kb. Comparative genomics analysis helped classify the 9 phages into two classes, which correlates with the host species. High percentage of similarity within the classes on both nucleotide...

  4. The user as network

    OpenAIRE

    Levy, Karen E. C.

    2015-01-01

    The user has become central to the way technology is conceptualized, designed, and studied in sociotechnical research and human-computer interaction; recently, non-users have also become productive foci of scholarly analysis. This paper argues that a focus on individualized users and non-users is incomplete, and conflates multiple modes of complex relation among people, institutions, and technologies. Rather than the use/non-use conception, I argue for conceptualizing users as networks: as co...

  5. Development Of The Computer Code For Comparative Neutron Activation Analysis

    International Nuclear Information System (INIS)

    The qualitative and quantitative chemical analysis with Neutron Activation Analysis (NAA) is an importance utilization of a nuclear research reactor, and this should be accelerated and promoted in application and its development to raise the utilization of the reactor. The application of Comparative NAA technique in GA Siwabessy Multi Purpose Reactor (RSG-GAS) needs special (not commercially available yet) soft wares for analyzing the spectrum of multiple elements in the analysis at once. The application carried out using a single spectrum software analyzer, and comparing each result manually. This method really degrades the quality of the analysis significantly. To solve the problem, a computer code was designed and developed for comparative NAA. Spectrum analysis in the code is carried out using a non-linear fitting method. Before the spectrum analyzed, it was passed to the numerical filter which improves the signal to noise ratio to do the deconvolution operation. The software was developed using the G language and named as PASAN-K The testing result of the developed software was benchmark with the IAEA spectrum and well operated with less than 10 % deviation

  6. Comparative Analysis of Cryptography Library in IoT

    Science.gov (United States)

    Kumar, Uday; Borgohain, Tuhin; Sanyal, Sugata

    2015-05-01

    The paper aims to do a survey along with a comparative analysis of the various cryptography libraries that are applicable in the field of Internet of Things (IoT). The first half of the paper briefly introduces the various cryptography libraries available in the field of cryptography along with a list of all the algorithms contained within the libraries. The second half of the paper deals with cryptography libraries specifically aimed for application in the field of Internet of Things. The various libraries and their performance analysis listed down in this paper are consolidated from various sources with the aim of providing a single comprehensive repository for reference to the various cryptography libraries and the comparative analysis of their features in IoT.

  7. REVIEWAND ANALYSIS OF MACHINE LEARNING AND SOFT COMPUTING APPROACHES FOR USER MODELING

    Directory of Open Access Journals (Sweden)

    Madhuri Potey

    2015-01-01

    Full Text Available The adequacy of user models depends mainly on the accuracy and precision of information that is retrieved to the user. The real challenge in user modelling studies is due to the inadequacy of data, improper use of techniques, noise within the data and imprecise nature of human behavior. For the best results of user modelling, one should choose an appropriate way to do it i.e. by selecting the best suitable approach for the desired domain. Machine learning and Soft computing Techniques have the ability to handle the uncertainty and are extensively being used for user modeling purpose. This paper reviews various approaches of user modeling and critically analyzes the machine learning and soft computing techniques that have successfully captured and formally modelled the human behavior.

  8. SYSMOD: user-interface for data processing, calculation codes and analysis of PWR lattices

    International Nuclear Information System (INIS)

    The task of the physical calculation of the reactor demand of the management of a great volume of information and inclose the stages for processing of data, calculations and analysis of their results. These stages are highly sensible to human mistakes, that's why is imprescindible that them undergo automatization, doing tracked all the process against mistake or unexpected result. The user-interface SYSMOD was developed over the platform IDE Delphi 3.0, visual language driven to events. It to consist in of the principal menu, which inclose between its options the preparation of the input data (File and Edit) to the pre-processors for the calculation codes of reactors. The output information may be showed in graphic and/or alphanumeric format (Data-Process). SYSMOD endures two applications for the management of the data base for the data during the preparation of the input for the pre-processors of the spectral calculation, so as for the organization, conservation and presentation for the obtained results. The carried out of the lattices and global codes, takes place from this application, over the platform MS-DOS (Run). SYSMOD regards the possibility for the debugging of the codes (Debugging), so as the benchmarks qualified to so effect (Benchmark). SYSMOD has been applied for the analysis of te WWER-440 of the first unity of Juragua Nuclear Power Plant. (author)

  9. Shape Analysis of 3D Head Scan Data for U.S. Respirator Users

    Directory of Open Access Journals (Sweden)

    Slice DennisE

    2010-01-01

    Full Text Available In 2003, the National Institute for Occupational Safety and Health (NIOSH conducted a head-and-face anthropometric survey of diverse, civilian respirator users. Of the 3,997 subjects measured using traditional anthropometric techniques, surface scans and 26 three-dimensional (3D landmark locations were collected for 947 subjects. The objective of this study was to report the size and shape variation of the survey participants using the 3D data. Generalized Procrustes Analysis (GPA was conducted to standardize configurations of landmarks associated with individuals into a common coordinate system. The superimposed coordinates for each individual were used as commensurate variables that describe individual shape and were analyzed using Principal Component Analysis (PCA to identify population variation. The first four principal components (PC account for 49% of the total sample variation. The first PC indicates that overall size is an important component of facial variability. The second PC accounts for long and narrow or short and wide faces. Longer narrow orbits versus shorter wider orbits can be described by PC3, and PC4 represents variation in the degree of ortho/prognathism. Geometric Morphometrics provides a detailed and interpretable assessment of morphological variation that may be useful in assessing respirators and devising new test and certification standards.

  10. Model Based User's Access Requirement Analysis of E-Governance Systems

    Science.gov (United States)

    Saha, Shilpi; Jeon, Seung-Hwan; Robles, Rosslin John; Kim, Tai-Hoon; Bandyopadhyay, Samir Kumar

    The strategic and contemporary importance of e-governance has been recognized across the world. In India too, various ministries of Govt. of India and State Governments have taken e-governance initiatives to provide e-services to citizens and the business they serve. To achieve the mission objectives, and make such e-governance initiatives successful it would be necessary to improve the trust and confidence of the stakeholders. It is assumed that the delivery of government services will share the same public network information that is being used in the community at large. In particular, the Internet will be the principal means by which public access to government and government services will be achieved. To provide the security measures main aim is to identify user's access requirement for the stakeholders and then according to the models of Nath's approach. Based on this analysis, the Govt. can also make standards of security based on the e-governance models. Thus there will be less human errors and bias. This analysis leads to the security architecture of the specific G2C application.

  11. Shape Analysis of 3D Head Scan Data for U.S. Respirator Users

    Science.gov (United States)

    Zhuang, Ziqing; Slice, DennisE; Benson, Stacey; Lynch, Stephanie; Viscusi, DennisJ

    2010-12-01

    In 2003, the National Institute for Occupational Safety and Health (NIOSH) conducted a head-and-face anthropometric survey of diverse, civilian respirator users. Of the 3,997 subjects measured using traditional anthropometric techniques, surface scans and 26 three-dimensional (3D) landmark locations were collected for 947 subjects. The objective of this study was to report the size and shape variation of the survey participants using the 3D data. Generalized Procrustes Analysis (GPA) was conducted to standardize configurations of landmarks associated with individuals into a common coordinate system. The superimposed coordinates for each individual were used as commensurate variables that describe individual shape and were analyzed using Principal Component Analysis (PCA) to identify population variation. The first four principal components (PC) account for 49% of the total sample variation. The first PC indicates that overall size is an important component of facial variability. The second PC accounts for long and narrow or short and wide faces. Longer narrow orbits versus shorter wider orbits can be described by PC3, and PC4 represents variation in the degree of ortho/prognathism. Geometric Morphometrics provides a detailed and interpretable assessment of morphological variation that may be useful in assessing respirators and devising new test and certification standards.

  12. Integrating Actionable User-defined Faceted Rules into the Hybrid Science Data System for Advanced Rapid Imaging & Analysis

    Science.gov (United States)

    Manipon, G. J. M.; Hua, H.; Owen, S. E.; Sacco, G. F.; Agram, P. S.; Moore, A. W.; Yun, S. H.; Fielding, E. J.; Lundgren, P.; Rosen, P. A.; Webb, F.; Liu, Z.; Smith, A. T.; Wilson, B. D.; Simons, M.; Poland, M. P.; Cervelli, P. F.

    2014-12-01

    The Hybrid Science Data System (HySDS) scalably powers the ingestion, metadata extraction, cataloging, high-volume data processing, and publication of the geodetic data products for the Advanced Rapid Imaging & Analysis for Monitoring Hazard (ARIA-MH) project at JPL. HySDS uses a heterogeneous set of worker nodes from private & public clouds as well as virtual & bare-metal machines to perform every aspect of the traditional science data system. For our science data users, the forefront of HySDS is the facet search interface, FacetView, which allows them to browse, filter, and access the published products. Users are able to explore the collection of product metadata information and apply multiple filters to constrain the result set down to their particular interests. It allows them to download these faceted products for further analysis and generation of derived products. However, we have also employed a novel approach to faceting where it is also used to apply constraints for custom monitoring of products, system resources, and triggers for automated data processing. The power of the facet search interface is well documented across various domains and its usefulness is rooted in the current state of existence of metadata. However, user needs usually extend beyond what is currently present in the data system. A user interested in synthetic aperture radar (SAR) data over Kilauea will download them from FacetView but would also want email notification of future incoming scenes. The user may even want that data pushed to a remote workstation for automated processing. Better still, these future products could trigger HySDS to run the user's analysis on its array of worker nodes, on behalf of the user, and ingest the resulting derived products. We will present our findings in integrating an ancillary, user-defined, system-driven processing system for HySDS that allows users to define faceted rules based on facet constraints and triggers actions when new SAR data products arrive that match the constraints. We will discuss use cases where users have defined rules for the automated generation of InSAR derived products: interferograms for California and Kilauea, time-series analyses, and damage proxy maps. These findings are relevant for science data system development of the proposed NASA-ISRO SAR mission.

  13. BLAT-based comparative analysis for transposable elements: BLATCAT.

    Science.gov (United States)

    Lee, Sangbum; Oh, Sumin; Kang, Keunsoo; Han, Kyudong

    2014-01-01

    The availability of several whole genome sequences makes comparative analyses possible. In primate genomes, the priority of transposable elements (TEs) is significantly increased because they account for ~45% of the primate genomes, they can regulate the gene expression level, and they are associated with genomic fluidity in their host genomes. Here, we developed the BLAST-like alignment tool (BLAT) based comparative analysis for transposable elements (BLATCAT) program. The BLATCAT program can compare specific regions of six representative primate genome sequences (human, chimpanzee, gorilla, orangutan, gibbon, and rhesus macaque) on the basis of BLAT and simultaneously carry out RepeatMasker and/or Censor functions, which are widely used Windows-based web-server functions to detect TEs. All results can be stored as a HTML file for manual inspection of a specific locus. BLATCAT will be very convenient and efficient for comparative analyses of TEs in various primate genomes. PMID:24959585

  14. Reproducible analysis of sequencing-based RNA structure probing data with user-friendly tools

    DEFF Research Database (Denmark)

    Kielpinski, Lukasz Jan; Sidiropoulos, Nikolaos; Vinther, Jeppe

    coordinates and vice versa. The collection is implemented as functions in the R statistical environment and as tools in the Galaxy platform, making them easily accessible for the scientific community. We demonstrate the usefulness of the collection by applying it to the analysis of sequencing-based hydroxyl...... radical probing data and comparing different normalization strategies....

  15. Dermoscopy analysis of RGB-images based on comparative features

    Science.gov (United States)

    Myakinin, Oleg O.; Zakharov, Valery P.; Bratchenko, Ivan A.; Artemyev, Dmitry N.; Neretin, Evgeny Y.; Kozlov, Sergey V.

    2015-09-01

    In this paper, we propose an algorithm for color and texture analysis for dermoscopic images of human skin based on Haar wavelets, Local Binary Patterns (LBP) and Histogram Analysis. This approach is a modification of «7-point checklist» clinical method. Thus, that is an "absolute" diagnostic method because one is using only features extracted from tumor's ROI (Region of Interest), which can be selected manually and/or using a special algorithm. We propose additional features extracted from the same image for comparative analysis of tumor and healthy skin. We used Euclidean distance, Cosine similarity, and Tanimoto coefficient as comparison metrics between color and texture features extracted from tumor's and healthy skin's ROI separately. A classifier for separating melanoma images from other tumors has been built by SVM (Support Vector Machine) algorithm. Classification's errors with and without comparative features between skin and tumor have been analyzed. Significant increase of recognition quality with comparative features has been demonstrated. Moreover, we analyzed two modes (manual and automatic) for ROI selecting on tumor and healthy skin areas. We have reached 91% of sensitivity using comparative features in contrast with 77% of sensitivity using the only "absolute" method. The specificity was the invariable (94%) in both cases.

  16. Comparative secretome analysis of rat stomach under different nutritional status

    Directory of Open Access Journals (Sweden)

    Lucia L. Senin

    2015-06-01

    Full Text Available The fact that gastric surgery is at the moment the most effective treatment to fight against obesity highlights the relevance of gastric derived proteins as potential targets to treat this pathology. Taking advantage of a previously established gastric explant model for endocrine studies, the proteomic analysis of gastric secretome was performed. To validate this gastric explant system for proteomic analysis, the identification of ghrelin, a classical gastric derived peptide, was performed by MS. In addition, the differential analysis of gastric secretomes under differential nutritional status (control feeding vs fasting vs re-feeding was performed. The MS identified proteins are showed in the present manuscript. The data supplied in this article is related to the research article entitled “Comparative secretome analysis of rat stomach under different nutritional status” [1].

  17. Vertical Guidance Performance Analysis of the L1-L5 Dual-Frequency GPS/WAAS User Avionics Sensor

    Directory of Open Access Journals (Sweden)

    Shau-Shiun Jan

    2010-03-01

    Full Text Available This paper investigates the potential vertical guidance performance of global positioning system (GPS/wide area augmentation system (WAAS user avionics sensor when the modernized GPS and Galileo are available. This paper will first investigate the airborne receiver code noise and multipath (CNMP confidence (σair. The σair will be the dominant factor in the availability analysis of an L1-L5 dual-frequency GPS/WAAS user avionics sensor. This paper uses the MATLAB Algorithm Availability Simulation Tool (MAAST to determine the required values for the σair, so that an L1-L5 dual-frequency GPS/WAAS user avionics sensor can meet the vertical guidance requirements of APproach with Vertical guidance (APV II and CATegory (CAT I over conterminous United States (CONUS. A modified MAAST that includes the Galileo satellite constellation is used to determine under what user configurations WAAS could be an APV II system or a CAT I system over CONUS. Furthermore, this paper examines the combinations of possible improvements in signal models and the addition of Galileo to determine if GPS/WAAS user avionics sensor could achieve 10 m Vertical Alert Limit (VAL within the service volume. Finally, this paper presents the future vertical guidance performance of GPS user avionics sensor for the United States’ WAAS, Japanese MTSAT-based satellite augmentation system (MSAS and European geostationary navigation overlay service (EGNOS.

  18. Vertical guidance performance analysis of the L1-L5 dual-frequency GPS/WAAS user avionics sensor.

    Science.gov (United States)

    Jan, Shau-Shiun

    2010-01-01

    This paper investigates the potential vertical guidance performance of global positioning system (GPS)/wide area augmentation system (WAAS) user avionics sensor when the modernized GPS and Galileo are available. This paper will first investigate the airborne receiver code noise and multipath (CNMP) confidence (σair). The σair will be the dominant factor in the availability analysis of an L1-L5 dual-frequency GPS/WAAS user avionics sensor. This paper uses the MATLAB Algorithm Availability Simulation Tool (MAAST) to determine the required values for the σair, so that an L1-L5 dual-frequency GPS/WAAS user avionics sensor can meet the vertical guidance requirements of APproach with Vertical guidance (APV) II and CATegory (CAT) I over conterminous United States (CONUS). A modified MAAST that includes the Galileo satellite constellation is used to determine under what user configurations WAAS could be an APV II system or a CAT I system over CONUS. Furthermore, this paper examines the combinations of possible improvements in signal models and the addition of Galileo to determine if GPS/WAAS user avionics sensor could achieve 10 m Vertical Alert Limit (VAL) within the service volume. Finally, this paper presents the future vertical guidance performance of GPS user avionics sensor for the United States' WAAS, Japanese MTSAT-based satellite augmentation system (MSAS) and European geostationary navigation overlay service (EGNOS). PMID:22319263

  19. Comparative Analysis Of Fuzzy Clustering Algorithms In Data Mining

    Directory of Open Access Journals (Sweden)

    Binsy Thomas, Madhu Nashipudimath

    2012-09-01

    Full Text Available Data clustering acts as an intelligent tool, a method that allows the user to handle large volumes of data effectively. The basic function of clustering is to transform data of any origin into a more compact form, one that represents accurately the original data. Clustering algorithms are used to analyze these large collection of data by means of subdividing them into groups of similar data. Fuzzy clustering extends the crisp clustering technique in such a way that instead of an object belonging to just one cluster at a time, the object belongs to one or more clusters at the same time with appropriate membership values assigned to the object in a cluster. This paper addresses the major issues associated with the conventional partitional clustering algorithms, namely difficulty in determining the cluster centers and handling noise or outlier points. Integration of fuzzy logic in data mining subjugates these traditional methods to handle natural data which are often vague. The study provides an analysis of two fuzzy clustering algorithms videlicet fuzzy c- means and adaptive fuzzy clustering algorithm and its illustration on different fields.

  20. Mycobacterial species as case-study of comparative genome analysis

    DEFF Research Database (Denmark)

    Zakham, F.; Belayachi, L.; Ussery, David; Akrim, M.; Benjouad, A.; El Aouad, R.; Ennaji, M. M.

    2011-01-01

    evolutionary events of these species and improving drugs, vaccines, and diagnostics tools for controlling Mycobacterial diseases. In this present study we aim to outline a comparative genome analysis of fourteen Mycobacterial genomes: M. avium subsp. paratuberculosis K—10, M. bovis AF2122/97, M. bovis BCG str...... genomes, GC content, number of genes in different data bases (Genbank, Refseq, and Prodigal). The BLAST matrix of these genomes has been figured to give a lot of information about the similarity between species in a simple scheme. As a result of multiple genome analysis, the pan and core genome have been...

  1. Comparative analysis of special preparedness young water-slalom

    Directory of Open Access Journals (Sweden)

    Daria Okun

    2016-02-01

    Full Text Available Purpose: to identify indicators is specially trained water-slalom aged 10–12 years. Material & Methods: methods of theoretical analysis, synthesis and synthesis of information, pedagogical control tests (tests, methods of mathematical statistics. Results: presented materials research performance technical readiness of 60 young water-slalom groups of initial training. A comparative analysis of the results and regulatory requirements, the proposed curriculum for youth sports schools. Conclusions: the results of the study suggest lagging performance testing young athletes behind the standards of the program requirements, indicating insufficient specially trained water-slaloms.

  2. Comparative analysis of two DOPA dioxygenases from Phytolacca Americana.

    Science.gov (United States)

    Takahashi, Kana; Yoshida, Kazuko; Sakuta, Masaaki

    2015-05-01

    The comparative analysis of two Phytolacca americana DOPA dioxygenases (PaDOD1 and PaDOD2) that may be involved in betalain biosynthesis was carried out. The recombinant protein of PaDOD catalyzed the conversion of DOPA to betalamic acid, whereas DOD activity was not detected in PaDOD2 in vitro. The role of DOD genes is discussed in the evolutionary context using phylogenetic analysis, suggesting that DOD might have been duplicated early in evolution and that accumulation of base substitutions could have led to the different characteristics of DODs within the betalain-producing Caryophyllales. PMID:26058141

  3. EFL textbooks for young learners: a comparative analysis of vocabulary

    OpenAIRE

    Nordlund, Marie

    2016-01-01

    This article reports the findings of a comparative analysis of two English teaching course book series which are widely used in school years 4–6 in Sweden: Good Stuffand New Champion. The analysis comprises comparisons of the vocabulary component in the teaching materials and examines the extent to which words – adjectives, nouns and verbs – recur in the books, whether there is a common core of words in the two series and, finally, whether vocabulary in the two teaching materials corresponds ...

  4. User-Centered Perspective of Information Retrieval Research and Analysis Methods.

    Science.gov (United States)

    Sugar, William

    1995-01-01

    Reviews information retrieval (IR) studies since 1986 from the user's perspective. Identifies two main approaches that advocate user-centered design theory: (1) the cognitive approach; and (2) the holistic approach. Also explores other approaches--systems thinking/action research and usability techniques that may have potential for IR research and…

  5. Elimination of User-Fees in Tertiary Education: A Distributive Analysis for Ecuador

    Science.gov (United States)

    Ponce, Juan; Loayza, Yessenia

    2012-01-01

    This paper offers new evidence and methods for understanding the distributive effect of a universal government policy to eliminate user fees in public universities in Ecuador. The main argument to eliminate user fees in higher education is that it will increase enrollment among the poor. In this regard, eliminating tuition fees is supposed to be a…

  6. An Explanatory Analysis of the Relationship between Facebook Usage and Social Capital (Research Subjects: Tehrani Users

    Directory of Open Access Journals (Sweden)

    Hamid Abdollahyan

    2014-01-01

    The results of the focus group discussions and participatory observations (Abdollahyan and Sheykhansari, 2012 indicate that working within Facebook environment leads to the generation of new vocabulary (lingo which is then introduced to new generations of Facebook users. Also, the information turnover and its extent among Facebook users is so much, so that every time that users login in their account they have to face new information about various events. In contrast, those who are not Facebook users, would use other tools of mass media to update their information, based on personal interests. This comparison drags our attention to a very critical phenomenon, i.e., the rate of information exchanged among Facebook users about various socio-political events have grown drastically. The friendship circle of Facebook users becomes expanded because it includes all people that such a user might know during his/her course of life. Whereas the friendship circle of a non-Facebook-user is limited to those with whom the individual is acquainted with in his/her real life and can have a face to face interaction. The level of trust among Facebook users for promoting friendship is high and they accept friendship invitations very easily. They do not have to go through a lot of evaluations to choose their virtual friends. The non-Facebook-users, on the other hand, protect their private spheres and are cautious about new friendships, if they are to choose new friends. We also discovered that there is a prominent difference between Facebook users and non-Facebook users in terms of getting intimate or close with a friend. Nevertheless, taking maintaining family relations as criteria, we noticed that almost all family members in the same age had a tendency to get connected through Facebook. It is possible therefore that if a familial connection is somehow cut off in the real life, reconnection happens through same-age groups in Facebook. Generally, Facebook functions in two ways for families, i.e., on the one had it preserves connections at a minimal level and on the other hand, it is a means of monitoring one another without having any real connections. The results also indicate that using Facebook can improve psychological health of a person. Those Facebook users who have a low level of self-esteem, use Facebook as a means of strengthening their social relations. We also discovered that Facebook users have a higher level of satisfaction from their friendship relationships and like to be with their Facebook friends, even more than the company of friends in actual space.

  7. New Software Product Feature Identification: An Analysis of E-mail User Characteristics and Functional Requirements

    Science.gov (United States)

    Sofuoglu, Ecehan; Basoglu, Nuri; Daim, Tugrul

    Improving the product development process is becoming more important as business environment gets more competitive. This study aims at understanding and characterizing potential users of a software product through idea sharing of users. It also targets to create a new product concept through understanding the common features users prefer most. During this product conceptualization stage, the customer ideas are captured through use of a questionnaire. The target users, priority of product functions and features are investigated and the details of the existing e-mail systems as well as of the ideal e-mail systems are identified. Some of the key results included users with demographic differences having different usage and requirements characteristics, expectations of females being higher than those of males and the software functions used and characteristics required being different for those with different job categories or educational backgrounds.

  8. HOW CAN ELECTRONIC COMMERCE IN DEVELOPING COUNTRIES ATTRACT USERS FROM DEVELOPED COUNTRIES? A COMPARATIVE STUDY OF THAILAND AND JAPAN

    OpenAIRE

    Tetsuro Kobayashi; Hitoshi Okada; Nagul Cooharojananone; Vanessa Bracamonte; Takahisa Suzuki

    2013-01-01

    A comparative study of Thailand and Japan investigated how electronic commerce (EC) in developing countries can be used to attract customers from developed countries. Thai and Japanese participants were shown language-appropriate versions of a hotel booking website in Thailand. Perceptions of and trust in the website were assessed, as was the willingness to book a room in the hotel using the website. The Thai participants tended to evaluate the quality of the website more highly and to trust ...

  9. Comparative analysis of radionuclide inventory in sediment 1995

    International Nuclear Information System (INIS)

    In order to test the reliability of methods used in environmental monitoring for radioactive substances, the Bundesanstalt fuer Gewaesserkunde in 1995 again carried out a comparative analysis ''Radionuclides in sediment'' with correspondingly labelled or conditioned samples. The primary aim of this project - independently of the method used in each instance and the measuring conditions observed - was to establish the extent to which the measuring results of the individual participants deviate from specified supposed values or likeliest contents, and also to valuate these deviations by means of illustrative quality parameters. In so far the aim of this comparative analysis differs from that of a so-called inter-laboratory experiment, where the primary objective is to obtain characteristic data for an analytical method (orig./SR)

  10. Reactor neutron activation analysis by single comparator method: Ko measurements

    International Nuclear Information System (INIS)

    Neutron activation analysis using single comparator has been adapted for multi element analysis in different matrices. Gold was used as comparator. High resolution gamma ray spectrometry was used for measuring radioactivity. Ko factors for fifteen isotopes were measured using this method. Ko values for 111 radioisotopes for the elements from fluorine to uranium were also calculated using latest nuclear data. Good agreement between the experimental and calculated Ko values was obtained. Ratio of the sub-cadmium to epi-cadmium neutron flux which is an important input parameter was measured in different irradiation positions of Apsara reactor. Using this method, macro and micro concentrations of analytes in a geological standard (USGS-W-1) and a few gem samples were determined. (author). 28 refs., 5 tabs., 1 appendix

  11. Development and role of comparative sequence analysis in medical virology

    Directory of Open Access Journals (Sweden)

    Stankov Srđan

    2006-01-01

    Full Text Available Introduction. Development of the polymerase chain reaction and deoxyribonucleic acid sequencing techniques has enabled precise identification, classification and taxonomy of viruses. Comparative sequence analysis. Comparative sequence analysis methods can be used in medical virology for many practical purposes. They may be classified into three broad categories: I - reconstruction of genealogical relationships between individual viral isolates for detection and monitoring of sources, reservoirs and modes of viral transmission; II - virus genotyping, that is determination of relationships between genetic types of viruses and their phenotypic properties, which has important implications for immuno-prophylaxis, therapy and prognosis of viral diseases; and III -investigation of functional properties of defined viral sequences, of special importance for explanation of viral pathogenesis and design of antiviral drugs. Future prospects. The combination of DNA sequencing with polymerase chain reaction following reverse transcription with the use of random primers offers a universal means for diagnosis of viral infections. .

  12. Strategic planning effectiveness comparative analysis of the Macedonian context

    OpenAIRE

    Bobek Å uklev; Stojan Daberliev

    2012-01-01

    Strategic planning is an important element in the organizational success and the key to effectiveness and overall competitiveness of the organizations. Strategic planning practice and effectiveness has been the subject of much academic debate in the Western context, but little empirical research and comparative analysis exists on this subject in emerging and developing countries. The aim of this study is to investigate the relationship between strategic planning and the organizational effecti...

  13. Comparative Analysis of Cryptography Library in IoT

    OpenAIRE

    Kumar, Uday; Borgohain, Tuhin; Sanyal, Sugata

    2015-01-01

    The paper aims to do a survey along with a comparative analysis of the various cryptography libraries that are applicable in the field of Internet of Things (IoT). The first half of the paper briefly introduces the various cryptography libraries available in the field of cryptography along with a list of all the algorithms contained within the libraries. The second half of the paper deals with cryptography libraries specifically aimed for application in the field of Internet of Things. The va...

  14. [Morphologic and tomodensitometric comparative analysis of two cyclotocephalic newborns].

    Science.gov (United States)

    Louryan, S; Vanmuylder, N; Pasture, B

    2016-03-01

    Two specimens of cyclotocephalic newborns, coming from museum collections, have been the subject of a comparative morphologic analysis. This one comprised an external examination and a CT scan exploration. If the craniofacial features were similar, one had a quasi-normal brain, while the second specimen displayed alobar holoprosencephaly. This observation relatively surprising is discussed in the light of current knowledge on the developmental genetics of this family of malformations. PMID:26671613

  15. Comparative genomic analysis of Mycobacterium tuberculosis clinical isolates

    OpenAIRE

    Liu, Fei; Hu, Yongfei; Wang, Qi; Li, Hong Min; Gao, George F; Liu, Cui Hua; Zhu, Baoli

    2014-01-01

    Background Due to excessive antibiotic use, drug-resistant Mycobacterium tuberculosis has become a serious public health threat and a major obstacle to disease control in many countries. To better understand the evolution of drug-resistant M. tuberculosis strains, we performed whole genome sequencing for 7 M. tuberculosis clinical isolates with different antibiotic resistance profiles and conducted comparative genomic analysis of gene variations among them. Results We observed that all 7 M. t...

  16. Comparative analysis of some brushless motors based on catalog data

    Directory of Open Access Journals (Sweden)

    Anton Kalapish

    2005-10-01

    Full Text Available Brushless motors (polyphased AC induction, synchronous and brushless DC motors have no alternatives in modern electric drives. They possess highly efficient and very wide range of speeds. The objective of this paper is to represent some relation between the basic parameters and magnitudes of electrical machines. This allows to be made a comparative analysis and a choice of motor concerning each particular case based not only on catalogue data or price for sale.

  17. Comparative analysis of some brushless motors based on catalog data

    OpenAIRE

    Anton Kalapish; Dimitar Sotirov; Dimitrina Koeva

    2005-01-01

    Brushless motors (polyphased AC induction, synchronous and brushless DC motors) have no alternatives in modern electric drives. They possess highly efficient and very wide range of speeds. The objective of this paper is to represent some relation between the basic parameters and magnitudes of electrical machines. This allows to be made a comparative analysis and a choice of motor concerning each particular case based not only on catalogue data or price for sale.

  18. Comparative Genomics Analysis in Prunoideae to Identify Biologically Relevant Polymorphisms

    OpenAIRE

    Koepke, Tyson; Schaeffer, Scott; Harper, Artemus; Dicenta, Federico; Edwards, Mark; Henry, Robert J.; Møller, Birger Lindberg; Meisel, Lee; Oraguzie, Nnadozie; Silva, Herman; Sánchez-Pérez, Raquel; Dhingra, Amit

    2013-01-01

    Prunus is an economically important genus with a wide range of physiological and biological variability. Using the peach genome as a reference, sequencing reads from four almond accessions and one sweet cherry cultivar were used for comparative analysis of these three Prunus species. Reference mapping enabled the identification of many biological relevant polymorphisms within the individuals. Examining the depth of the polymorphisms and the overall scaffold coverage, we identified many potent...

  19. Extreme storm surges: a comparative study of frequency analysis approaches

    OpenAIRE

    Y. Hamdi; L. Bardet; C.-M. Duluc; V. Rebour

    2014-01-01

    In France, nuclear facilities were designed around very low probabilities of failure. Nevertheless, some extreme climatic events have given rise to exceptional observed surges (outliers) much larger than other observations, and have clearly illustrated the potential to underestimate the extreme water levels calculated with the current statistical methods. The objective of the present work is to conduct a comparative study of three approaches to extreme value analysis, includ...

  20. Comparative analysis of different methods for graphene nanoribbon synthesis

    OpenAIRE

    Tošić Dragana D.; Marković Zoran M.; Jovanović Svetlana P.; Milosavljević Momir S.; Todorović-Marković Biljana M.

    2013-01-01

    Graphene nanoribbons (GNRs) are thin strips of graphene that have captured the interest of scientists due to their unique structure and promising applications in electronics. This paper presents the results of a comparative analysis of morphological properties of graphene nanoribbons synthesized by different methods. Various methods have been reported for graphene nanoribons synthesis. Lithography methods usually include electron-beam (e-beam) lithography, atomic force microscopy (AFM) ...

  1. COMPETITIVE SOCIAL POSITION OF THE COUNTRY: A COMPARATIVE ANALYSIS

    OpenAIRE

    I. Chornodid

    2014-01-01

    The article reveals the essence of the country's competitive position, a comparative analysis according to international indexes and indicators is provided. Also the competitive social benefits of the country are described. The real situation of the competitive social benefits is considered on international standards and assessments. The estimation of the position of Ukraine is given in terms of freedom, network readiness index, the index of competitiveness of travel and tourism.

  2. COMPETITIVE SOCIAL POSITION OF THE COUNTRY: A COMPARATIVE ANALYSIS

    Directory of Open Access Journals (Sweden)

    I. Chornodid

    2014-01-01

    Full Text Available The article reveals the essence of the country's competitive position, a comparative analysis according to international indexes and indicators is provided. Also the competitive social benefits of the country are described. The real situation of the competitive social benefits is considered on international standards and assessments. The estimation of the position of Ukraine is given in terms of freedom, network readiness index, the index of competitiveness of travel and tourism.

  3. Comparative effectiveness analysis of social media monitoring tools

    OpenAIRE

    Duffková, Pavlína

    2012-01-01

    The main objective of this master thesis is a comparative effectiveness analysis of selected social media monitoring tools. The theoretical part of the thesis first familiarizes the reader with the core terms, which will be used throughout the thesis. The next chapter focuses on the detailed specification of classic online marketing. It describes the growing trend of social media marketing and charts out its current status on the Czech online market. In addition, the vital SEO and SEM techniq...

  4. Comparative Analysis of Visco-elastic Models with Variable Parameters

    OpenAIRE

    Silviu Nastac; Adrian Leopa

    2010-01-01

    The paper presents a theoretical comparative study for computational behaviour analysis of vibration isolation elements based on viscous and elastic models with variable parameters. The changing of elastic and viscous parameters can be produced by natural timed evolution demo-tion or by heating developed into the elements during their working cycle. It was supposed both linear and non-linear numerical viscous and elastic models, and their combinations. The results show the impor-tance of nume...

  5. Initial Implementation of a comparative Data Analysis Ontology

    Directory of Open Access Journals (Sweden)

    Francisco Prosdocimi

    2009-01-01

    Full Text Available Comparative analysis is used throughout biology. When entities under comparison (e.g. proteins, genomes, species are related by descent, evolutionary theory provides a framework that, in principle, allows N-ary comparisons of entities, while controlling for non-independence due to relatedness. Powerful software tools exist for specialized applications of this approach, yet it remains under-utilized in the absence of a unifying informatics infrastructure. A key step in developing such an infrastructure is the definition of a formal ontology. The analysis of use cases and existing formalisms suggests that a significant component of evolutionary analysis involves a core problem of inferring a character history, relying on key concepts: “Operational Taxonomic Units” (OTUs, representing the entities to be compared; “character-state data” representing the observations compared among OTUs; “phylogenetic tree”, representing the historical path of evolution among the entities; and “transitions”, the inferred evolutionary changes in states of characters that account for observations. Using the Web Ontology Language (OWL, we have defined these and other fundamental concepts in a Comparative Data Analysis Ontology (CDAO. CDAO has been evaluated for its ability to represent token data sets and to support simple forms of reasoning. With further development, CDAO will provide a basis for tools (for semantic transformation, data retrieval, validation, integration, etc. that make it easier for software developers and biomedical researchers to apply evolutionary methods of inference to diverse types of data, so as to integrate this powerful framework for reasoning into their research.

  6. Comparative analysis of existing models for power-grid synchronization

    OpenAIRE

    Nishikawa, Takashi; Motter, Adilson E.

    2015-01-01

    The dynamics of power-grid networks is becoming an increasingly active area of research within the physics and network science communities. The results from such studies are typically insightful and illustrative, but are often based on simplifying assumptions that can be either difficult to assess or not fully justified for realistic applications. Here we perform a comprehensive comparative analysis of three leading models recently used to study synchronization dynamics in power-grid networks...

  7. Comparative analysis of regulatory information and circuits across distant species

    OpenAIRE

    Boyle, Alan P.; Araya, Carlos L; Brdlik, Cathleen; Cayting, Philip; CHENG, CHAO; Cheng, Yong; Gardner, Kathryn; Hillier, Ladeana; Janette, Judith; Jiang, Lixia; Kasper, Dionna; Kawli, Trupti; Kheradpour, Pouya; Kundaje, Anshul; Li, Jingyi Jessica

    2014-01-01

    Summary Despite the large evolutionary distances, metazoan species show remarkable commonalities, which has helped establish fly and worm as model organisms for human biology 1,2 . Although studies of individual elements and factors have explored similarities in gene regulation, a large-scale comparative analysis of basic principles of transcriptional regulatory features is lacking. We mapped the genome-wide binding locations of 165 human, 93 worm, and 52 fly transcription-regulatory factors ...

  8. The regulation of television sports broadcasting: a comparative analysis

    OpenAIRE

    SMITH, P., CUBAS, M., CORRIN, J., TAPIA, J., DE PEDRO, I., RUIZ COBO, J., PEREDA ROSALES, E.M.; Evens, T.; Iosifidis, P.

    2015-01-01

    Based on seven different sports broadcasting markets (Australia, Brazil, Italy, India, South Africa, United Kingdom and the United States), this article provides a comparative analysis of the regulation of television sports broadcasting. The article examines how contrasting perspectives on television and sport – economic and sociocultural – have been reflected in two main approaches to the regulation of sports broadcasting, namely competition law and major events legislation. The results of t...

  9. Comparative Analysis of Public Management in Romania and EU Countries

    OpenAIRE

    Anca Jarmila Guţă

    2013-01-01

    The paper presents the essential co-ordonates of public management with the view of realization of comparative analysis of manner of carrying on of activities in the field of public management in E.U. countries and in our country. Also the main changes are presented which have marked this field of science and practice at world-wide level and the manner how these changes have conducted to effectiveness of public services of administrative system of our country.

  10. SHEAT: a computer code for probabilistic seismic hazard analysis, user's manual

    International Nuclear Information System (INIS)

    The SHEAT code developed at Japan Atomic Energy Research Institute is for probabilistic seismic hazard analysis which is one of the tasks needed for seismic Probabilistic Safety Assessment (PSA) of a nuclear power plant. Seismic hazard is defined as an annual exceedance frequency of occurrence of earthquake ground motions at various levels of intensity at a given site. With the SHEAT code, seismic hazard is calculated by the following two steps: (1) Modeling of earthquake generation around a site. Future earthquake generation (locations, magnitudes and frequencies of postulated earthquakes) is modelled based on the historical earthquake records, active fault data and expert judgement. (2) Calculation of probabilistic seismic hazard at the site. An earthquake ground motion is calculated for each postulated earthquake using an attenuation model taking into account its standard deviation. Then the seismic hazard at the site is calculated by summing the frequencies of ground motions by all the earthquakes. This document is the user's manual of the SHEAT code. It includes: (1) Outlines of the code, which include overall concept, logical process, code structure, data file used and special characteristics of the code, (2) Functions of subprograms and analytical models in them, (3) Guidance of input and output data, and (4) Sample run results. The code has widely been used at JAERI to analyze seismic hazard at various nuclear power plant sites in japan. (author)

  11. Knowledge Level Assessment in e-Learning Systems Using Machine Learning and User Activity Analysis

    Directory of Open Access Journals (Sweden)

    Nazeeh Ghatasheh

    2015-04-01

    Full Text Available Electronic Learning has been one of the foremost trends in education so far. Such importance draws the attention to an important shift in the educational paradigm. Due to the complexity of the evolving paradigm, the prospective dynamics of learning require an evolution of knowledge delivery and evaluation. This research work tries to put in hand a futuristic design of an autonomous and intelligent e-Learning system. In which machine learning and user activity analysis play the role of an automatic evaluator for the knowledge level. It is important to assess the knowledge level in order to adapt content presentation and to have more realistic evaluation of online learners. Several classification algorithms are applied to predict the knowledge level of the learners and the corresponding results are reported. Furthermore, this research proposes a modern design of a dynamic learning environment that goes along the most recent trends in e-Learning. The experimental results illustrate an overall performance superiority of a support vector machine model in evaluating the knowledge levels; having 98.6%of correctly classified instances with 0.0069 mean absolute error.

  12. Comparative analysis of the mitochondrial genomes in gastropods

    International Nuclear Information System (INIS)

    In this work we presented a comparative analysis of the mitochondrial genomes in gastropods. Nucleotide and amino acids composition was calculated and a comparative visual analysis of the start and termination codons was performed. The organization of the genome was compared calculating the number of intergenic sequences, the location of the genes and the number of reorganized genes (breakpoints) in comparison with the sequence that is presumed to be ancestral for the group. In order to calculate variations in the rates of molecular evolution within the group, the relative rate test was performed. In spite of the differences in the size of the genomes, the amino acids number is conserved. The nucleotide and amino acid composition is similar between Vetigastropoda, Ceanogastropoda and Neritimorpha in comparison to Heterobranchia and Patellogastropoda. The mitochondrial genomes of the group are very compact with few intergenic sequences, the only exception is the genome of Patellogastropoda with 26,828 bp. Start codons of the Heterobranchia and Patellogastropoda are very variable and there is also an increase in genome rearrangements for these two groups. Generally, the hypothesis of constant rates of molecular evolution between the groups is rejected, except when the genomes of Caenogastropoda and Vetigastropoda are compared.

  13. Randomized Trial Comparing Two Treatment Strategies Using Prize-Based Reinforcement of Abstinence in Cocaine and Opiate Users

    OpenAIRE

    Preston, Kenzie L.; Ghitza, Udi E.; Schmittner, John P; Jennifer R. Schroeder; Epstein, David H.

    2008-01-01

    We compared two strategies of prize-based contingency management (CM) in methadone-maintained outpatients. Urine was tested thrice weekly for 5 weeks pre-CM, 12 weeks CM, and 8 weeks post-CM. Participants were randomly assigned to a cocaine contingency (four prize draws for each cocaine-negative urine, N ?=? 29) or an opiate-cocaine contingency (one draw for each urine negative for opiates or cocaine, four draws if negative for both, N ?=? 38). There were no group differences in cocaine absti...

  14. User centric approach to itemset utility mining in Market Basket Analysis

    Directory of Open Access Journals (Sweden)

    Jyothi Pillai

    2011-01-01

    Full Text Available Business intelligence is information about a company's past performance that is used to help predict the company's future performance. It can reveal emerging trends from which the company might profit [31]. Data mining allows users to sift through the enormous amount of information available in data warehouses; it is from this sifting process that business intelligence gems may be found [31]. Within the area of data mining, the problem of deriving associations from data has received a great deal of attention. This problem is referred as “market-basket problem”. Association Rule Mining (ARM, a well-studied technique in the data mining field, identifies frequent itemsets from databases and generates association rules by assuming that all items have the same significance andfrequency of occurrence in a record. However, items are actually different in many aspects in a number of real applications such as retail marketing, nutritional pattern mining, etc [26]. Rare items are less frequent items [32]. For many real world applications, however, utility of rare itemsets based on cost, profit or revenue is of importance. For extracting rare itemsets, the equal frequency based approaches like Apriori approach suffer from “rare item problem dilemma”. Utility mining aims at identifying rare itemsets with high utility. The main objective of Utility Mining is to identify the itemsets with highest utilities, by considering profit, quantity, costor other user preferences [40]. Also valuable patterns cannot be discovered by traditional non-temporal data mining approaches that treat all the data as one large segment, with no attention paid to utilizing the time information of transactions. Now, as increasingly complex real-world problems are addressed, temporal rare itemset utility problem, are taking center stage. In many real-life applications, high-utility itemsets consist of rare items. Rare itemsets provide useful information in different decision-making domains such as business transactions, medical, security, fraudulenttransactions, and retail communities. For example, in a supermarket, customers purchase microwave ovens or frying pans rarely as compared to bread, washing powder, soap. But the former transactions yield more profit for the supermarket. A retail business may be interested in identifying its most valuable customers i.e. who contribute a major fraction of overall company profit [40]. In this paper, these problems of analyzing market-basket data are considered and important contributions are presented. It is assumed that the utilities of itemsets may differ and determine the high utility itemsets based onboth internal (transaction and external utilities.

  15. Comparative analysis of breast cancer detection in mammograms and thermograms.

    Science.gov (United States)

    Milosevic, Marina; Jankovic, Dragan; Peulic, Aleksandar

    2015-02-01

    In this paper, we present a system based on feature extraction techniques for detecting abnormal patterns in digital mammograms and thermograms. A comparative study of texture-analysis methods is performed for three image groups: mammograms from the Mammographic Image Analysis Society mammographic database; digital mammograms from the local database; and thermography images of the breast. Also, we present a procedure for the automatic separation of the breast region from the mammograms. Computed features based on gray-level co-occurrence matrices are used to evaluate the effectiveness of textural information possessed by mass regions. A total of 20 texture features are extracted from the region of interest. The ability of feature set in differentiating abnormal from normal tissue is investigated using a support vector machine classifier, Naive Bayes classifier and K-Nearest Neighbor classifier. To evaluate the classification performance, five-fold cross-validation method and receiver operating characteristic analysis was performed. PMID:25720034

  16. COMPARATIVE ANALYSIS OF CELEBRITY AND NON-CELEBRITY ADVERTISEMENT

    Directory of Open Access Journals (Sweden)

    Ammar Asad

    2013-12-01

    Full Text Available This study is undertaken to make a comparative analysis of celebrity advertisement and non-celebrity advertisement with respect to attitude toward advertisement, attitude toward brand, purchase intentions, and advertising attributes. For this purpose, a simple random sample of 200 students studying four different disciplines was taken from the Private University in Lahore. For econometric proof, reliability analysis, descriptive analysis, and independent sample T-test was used to interpret the results. Our findings show that there is no significant difference between celebrity and non-celebrity advertisement with respect to attitude toward advertisement, attitude toward brand, purchasing intentions, and advertising attributes. The limitations and recommendations of this research are also given.

  17. TADS--A CFD-Based Turbomachinery Analysis and Design System with GUI: User's Manual. 2.0

    Science.gov (United States)

    Koiro, M. J.; Myers, R. A.; Delaney, R. A.

    1999-01-01

    The primary objective of this study was the development of a Computational Fluid Dynamics (CFD) based turbomachinery airfoil analysis and design system, controlled by a Graphical User Interface (GUI). The computer codes resulting from this effort are referred to as TADS (Turbomachinery Analysis and Design System). This document is intended to serve as a User's Manual for the computer programs which comprise the TADS system, developed under Task 18 of NASA Contract NAS3-27350, ADPAC System Coupling to Blade Analysis & Design System GUI and Task 10 of NASA Contract NAS3-27394, ADPAC System Coupling to Blade Analysis & Design System GUI, Phase II-Loss, Design and, Multi-stage Analysis. TADS couples a throughflow solver (ADPAC) with a quasi-3D blade-to-blade solver (RVCQ3D) in an interactive package. Throughflow analysis and design capability was developed in ADPAC through the addition of blade force and blockage terms to the governing equations. A GUI was developed to simplify user input and automate the many tasks required to perform turbomachinery analysis and design. The coupling of the various programs was done in such a way that alternative solvers or grid generators could be easily incorporated into the TADS framework. Results of aerodynamic calculations using the TADS system are presented for a highly loaded fan, a compressor stator, a low speed turbine blade and a transonic turbine vane.

  18. An Empirical Study on User-oriented Association Analysis of Library Classification Schemes

    Directory of Open Access Journals (Sweden)

    Hsiao-Tieh Pu

    2002-12-01

    Full Text Available Library classification schemes are mostly organized based on disciplines with a hierarchical structure. From the user point of view, some highly related yet non-hierarchical classes may not be easy to perceive in these schemes. This paper is to discover hidden associations between classes by analyzing users’ usage of library collections. The proposed approach employs collaborative filtering techniques to discover associated classes based on the circulation patterns of similar users. Many associated classes scattered across different subject hierarchies could be discovered from the circulation patterns of similar users. The obtained association norms between classes were found to be useful in understanding users' subject preferences for a given class. Classification schemes can, therefore, be made more adaptable to changes of users and the uses of different library collections. There are implications for applications in information organization and retrieval as well. For example, catalogers could refer to the ranked associated classes when they perform multi-classification, and users could also browse the associated classes for related subjects in an enhanced OPAC system. In future research, more empirical studies will be needed to validate the findings, and methods for obtaining user-oriented associations can still be improved.[Article content in Chinese

  19. Transit Analysis Package (TAP and autoKep): IDL Graphical User Interfaces for Extrasolar Planet Transit Photometry

    CERN Document Server

    Gazak, J Zachary; Tonry, John; Eastman, Jason; Mann, Andrew W; Agol, Eric

    2011-01-01

    We present an IDL graphical user interface-driven software package designed for the analysis of extrasolar planet transit light curves. The Transit Analysis Package (TAP) software uses Markov Chain Monte Carlo (MCMC) techniques to fit light curves using the analytic model of Mandel and Agol (2002). The package incorporates a wavelet based likelihood function developed by Carter and Winn (2009) which allows the MCMC to assess parameter uncertainties more robustly than classic chi-squared methods by parameterizing uncorrelated "white" and correlated "red" noise. The software is able to simultaneously analyze multiple transits observed in different conditions (instrument, filter, weather, etc). The graphical interface allows for the simple execution and interpretation of Bayesian MCMC analysis tailored to a user's specific data set and has been thoroughly tested on ground-based and Kepler photometry. AutoKep provides a similar GUI for the preparation of Kepler MAST archive data for analysis by TAP or any other a...

  20. Studying Psychosocial Barriers to Drug Treatment Among Chinese Methamphetamine Users Using A 3-Step Latent Class Analysis.

    Science.gov (United States)

    Wang, Jichuan; Kelly, Brian C; Liu, Tieqiao; Hao, Wei

    2016-03-01

    Given the growth in methamphetamine use in China during the 21st century, we assessed perceived psychosocial barriers to drug treatment among this population. Using a sample of 303 methamphetamine users recruited via Respondent Driven Sampling, we use Latent Class Analysis (LCA) to identify possible distinct latent groups among Chinese methamphetamine users on the basis of their perceptions of psychosocial barriers to drug treatment. After covariates were included to predict latent class membership, the 3-step modeling approach was applied. Our findings indicate that the Chinese methamphetamine using population was heterogeneous on perceptions of drug treatment barriers; four distinct latent classes (subpopulations) were identified - Unsupported Deniers, Deniers, Privacy Anxious, and Low Barriers - and individual characteristics shaped the probability of class membership. Efforts to link Chinese methamphetamine users to treatment may require a multi-faceted approach that attends to differing perceptions about impediments to drug treatment. PMID:26738640

  1. Real-time acquisition and data analysis of skeletal muscle contraction in a multi-user environment.

    Science.gov (United States)

    Lieber, R L; Smith, D E; Campbell, R C; Hargens, A R

    1986-06-01

    A data acquisition system is described which acquires data from contracting skeletal muscle. The system is designed to run in a multi-user environment while acquiring contractile data in real-time. Time dedicated solely to laboratory experiments is thus eliminated. A menu-driver is included to allow users to enter experimental commands with or without command arguments. Error monitoring functions prevent operator errors from causing data loss. Data storage in both ASCII and binary formats maximizes file flexibility, readability and accessibility. Finally, an on-line tutorial and help facility is provided for user training. The system developed is applicable to any experimental environment involving data acquisition, storage and analysis. PMID:3637122

  2. User's Manual for HPTAM: a Two-Dimensional Heat Pipe Transient Analysis Model, Including the Startup from a Frozen State

    Science.gov (United States)

    Tournier, Jean-Michel; El-Genk, Mohamed S.

    1995-01-01

    This report describes the user's manual for 'HPTAM,' a two-dimensional Heat Pipe Transient Analysis Model. HPTAM is described in detail in the UNM-ISNPS-3-1995 report which accompanies the present manual. The model offers a menu that lists a number of working fluids and wall and wick materials from which the user can choose. HPTAM is capable of simulating the startup of heat pipes from either a fully-thawed or frozen condition of the working fluid in the wick structure. The manual includes instructions for installing and running HPTAM on either a UNIX, MS-DOS or VMS operating system. Samples for input and output files are also provided to help the user with the code.

  3. Clustering Algorithm Analysis of Web Users with Dissimilarity and SOM Neural Networks

    Directory of Open Access Journals (Sweden)

    Qiang Xiao

    2012-11-01

    Full Text Available To effectively organize and analyze massive web information, design a web user’s clustering mining algorithm. SOM neural network algorithm has lots of disadvantages, to solve the data clustering, propose a new method that uses D-SOM (Dissimilarity-Self Organizing feature Mapping algorithm, for clustering web user’s. This algorithm can estimate the center and number of clustering data set by dissimilarity computing, optimize SOM neural network learning and improve clustering effect. Through design the experiment, these web data are collected and processed by D-SOM algorithm Experimental results verify which D-SOM clustering algorithm has better clustering accuracy and imore efficient than SOM neural network algorithm.

  4. What is a non-user? An analysis of Danish surveys on cultural habits and participation

    DEFF Research Database (Denmark)

    Balling, Gitte; Kann-Christensen, Nanna

    2013-01-01

    constructed through the surveys from 1964 until today. This movement spans from a citizen to a customer perspective. Furthermore the article addresses the problem that the new concept of participatory culture does not necessarily take place within the institutions which is measured in surveys on cultural......The article analyses surveys of cultural participation and discusses how they convey certain concepts of users and culture. The article aims to develop a more nuanced and contemporary picture of cultural participation and notions of the non-user. The article shows a shift in how the user is...... participation. The concept of participation conveys different meanings, therefore culturally active and contributing citizens may count as non-users in the surveys. The article concludes that it might be worth considering measuring leisure time activities as it was done in the 1960s and 1970s instead of the...

  5. Performance analysis of spectrum sensing with multiple status changes in primary user traffic

    KAUST Repository

    Tang, Liang

    2012-06-01

    In this letter, the impact of primary user traffic with multiple status changes on the spectrum sensing performance is analyzed. Closed-form expressions for the probabilities of false alarm and detection are derived. Numerical results show that the multiple status changes of the primary user cause considerable degradation in the sensing performance. This degradation depends on the number of changes, the primary user traffic model, the primary user traffic intensity and the signal-to-noise ratio of the received signal. Numerical results also show that the amount of degradation decreases when the number of changes increases, and converges to a minimum sensing performance due to the limited sensing period and primary holding time. © 2012 IEEE.

  6. HOW CAN ELECTRONIC COMMERCE IN DEVELOPING COUNTRIES ATTRACT USERS FROM DEVELOPED COUNTRIES? A COMPARATIVE STUDY OF THAILAND AND JAPAN

    Directory of Open Access Journals (Sweden)

    Tetsuro Kobayashi

    2013-12-01

    Full Text Available A comparative study of Thailand and Japan investigated how electronic commerce (EC in developing countries can be used to attract customers from developed countries. Thai and Japanese participants were shown language-appropriate versions of a hotel booking website in Thailand. Perceptions of and trust in the website were assessed, as was the willingness to book a room in the hotel using the website. The Thai participants tended to evaluate the quality of the website more highly and to trust it more than did the Japanese participants. Furthermore, the Thai participants tended to think that the hotel was more responsible for their hotel reservations than was the EC service, and that the content of the website was developed by the hotel rather than by the EC service. Thai participants were more likely to express willingness to reserve a room if they thought that the hotel had developed the website content, whereas the Japanese participants’ willingness to book a room were greater when they thought that the EC service had developed the content. Based on these results, customization strategies for EC in developing countries to attract customers from developed countries are discussed.

  7. Canine Mammary Carcinomas: A Comparative Analysis of Altered Gene Expression

    Directory of Open Access Journals (Sweden)

    Farruk M. Lutful Kabir

    2015-12-01

    Full Text Available Breast cancer represents the second most frequent neoplasm in humans and sexually intact female dogs after lung and skin cancers, respectively. Many similar features in human and dog cancers including, spontaneous development, clinical presentation, tumor heterogeneity, disease progression and response to conventional therapies have supported development of this comparative model as an alternative to mice. The highly conserved similarities between canine and human genomes are also key to this comparative analysis, especially when compared to the murine genome. Studies with canine mammary tumor (CMT models have shown a strong genetic correlation with their human counterparts, particularly in terms of altered expression profiles of cell cycle regulatory genes, tumor suppressor and oncogenes and also a large group of non-coding RNAs or microRNAs (miRNAs. Because CMTs are considered predictive intermediate models for human breast cancer, similarities in genetic alterations and cancer predisposition between humans and dogs have raised further interest. Many cancer-associated genetic defects critical to mammary tumor development and oncogenic determinants of metastasis have been reported and appear to be similar in both species. Comparative analysis of deregulated gene sets or cancer signaling pathways has shown that a significant proportion of orthologous genes are comparably up- or down-regulated in both human and dog breast tumors. Particularly, a group of cell cycle regulators called cyclin-dependent kinase inhibitors (CKIs acting as potent tumor suppressors are frequently defective in CMTs. Interestingly, comparative analysis of coding sequences has also shown that these genes are highly conserved in mammals in terms of their evolutionary divergence from a common ancestor. Moreover, co-deletion and/or homozygous loss of the INK4A/ARF/INK4B (CDKN2A/B locus, encoding three members of the CKI tumor suppressor gene families (p16/INK4A, p14ARF and p15/INK4B, in many human and dog cancers including mammary carcinomas, suggested their important conserved genetic order and localization in orthologous chromosomal regions. miRNAs, as powerful post-transcriptional regulators of most of the cancer-associated genes, have not been well evaluated to date in animal cancer models. Comprehensive expression profiles of miRNAs in CMTs have revealed their altered regulation showing a strong correlation with those found in human breast cancers. These genetic correlations between human and dog mammary cancers will greatly advance our understanding of regulatory mechanisms involving many critical cancer-associated genes that promote neoplasia and contribute to the promising development of future therapeutics.

  8. AnaDroid: Malware Analysis of Android with User-supplied Predicates

    OpenAIRE

    Liang, Shuying; Might, Matthew; Horn, David

    2013-01-01

    Today's mobile platforms provide only coarse-grained permissions to users with regard to how third- party applications use sensitive private data. Unfortunately, it is easy to disguise malware within the boundaries of legitimately-granted permissions. For instance, granting access to "contacts" and "internet" may be necessary for a text-messaging application to function, even though the user does not want contacts transmitted over the internet. To understand fine-grained application use of pe...

  9. Analysis of the inspections and abnormalities found users of radioactive material during, 1994, 1995, 1996

    International Nuclear Information System (INIS)

    The purpose of this work is to show the statistical results of the inspections, audits, verification or recognition tasks as well as the abnormalities found in users of radioactive materials in 1994, 1995 and the firsts six months of 1996, together with corrective actions that this commission has applied to users aiming at a full compliance with safety standards and , in this way, improving the protection to the occupationally exposed worker, the public, and the environment

  10. Mapa-an object oriented code with a graphical user interface for accelerator design and analysis

    International Nuclear Information System (INIS)

    We developed a code for accelerator modeling which will allow users to create and analyze accelerators through a graphical user interface (GUI). The GUI can read an accelerator from files or create it by adding, removing and changing elements. It also creates 4D orbits and lifetime plots. The code includes a set of accelerator elements classes, C++ utility and GUI libraries. Due to the GUI, the code is easy to use and expand

  11. Mapa-an object oriented code with a graphical user interface for accelerator design and analysis

    Energy Technology Data Exchange (ETDEWEB)

    Shasharina, S.G.; Cary, J.R. [Tech-X Corporation 4588 Pussy Willow Court, Boulder, Colorado 80301 (United States)

    1997-02-01

    We developed a code for accelerator modeling which will allow users to create and analyze accelerators through a graphical user interface (GUI). The GUI can read an accelerator from files or create it by adding, removing and changing elements. It also creates 4D orbits and lifetime plots. The code includes a set of accelerator elements classes, C++ utility and GUI libraries. Due to the GUI, the code is easy to use and expand. {copyright} {ital 1997 American Institute of Physics.}

  12. Mapa-an object oriented code with a graphical user interface for accelerator design and analysis

    International Nuclear Information System (INIS)

    We developed a code for accelerator modeling which will allow users to create and analyze accelerators through a graphical user interface (GUI). The GUI can read an accelerator from files or create it by adding, removing and changing elements. It also creates 4D orbits and lifetime plots. The code includes a set of accelerator elements classes, C++ utility and GUI libraries. Due to the GUI, the code is easy to use and expand. copyright 1997 American Institute of Physics

  13. An Explanatory Analysis of the Relationship between Facebook Usage and Social Capital (Research Subjects: Tehrani Users)

    OpenAIRE

    Hamid Abdollahyan; Mahin Sheikh Ansari

    2014-01-01

    Introduction This paper examines the relationship between social capital and using Facebook social media. In order to tackle the issue, it should first be noted that according to the latest statistics the total number of Facebook users in the world has passed the threshold of one billion in September 2013. And, based on the latest statistics, Iran ranks 13th among all countries in terms of the total number of internet users in proportion to the total population. There is no official statis...

  14. Web Users Session Analysis Using DBSCAN and Two Phase Utility Mining Algorithms

    OpenAIRE

    Mr. G. Sunil Kumar; C.V.K Sirisha; Kanaka Durga.R; A.Devi

    2012-01-01

    One of the important issues in data mining is the interestingness problem. Typically, in a data mining process, the number of patterns discovered can easily exceed the capabilities of a human user to identify interesting results. To address this problem, utility measures have been used to reduce the patterns prior to presenting them to the user. A frequent itemset only reflects the statistical correlation between items, and it does not reflect the semantic significance of the items. This prop...

  15. Representation of Health Conditions on Facebook: Content Analysis and Evaluation of User Engagement

    OpenAIRE

    Hale, Timothy M; Pathipati, Akhilesh S; Zan, Shiyi; Jethwani, Kamal

    2014-01-01

    Background A sizable majority of adult Internet users report looking for health information online. Social networking sites (SNS) like Facebook represent a common place to seek information, but very little is known about the representation and use of health content on SNS. Objective Our goal in this study was to understand the role of SNS in health information seeking. More specifically, we aimed to describe how health conditions are represented on Facebook Pages and how users interact with t...

  16. The imagined audience on Facebook: Analysis of Estonian teen sketches about typical Facebook users

    OpenAIRE

    Murumaa, Maria; Siibak, Andra

    2012-01-01

    This paper analyses Estonian high–school students (N=15) perceptions about the imagined audience on Facebook. Students’ sketches (N=39) and reflections on focus group interviews indicate that the youth are well aware of the plurality of the imagined audience on Facebook. From the total of six prevalent user types and sub–types that emerged, just one user type could be considered representative of an ideal audience on Facebook in the eyes of youth.

  17. User-Centered Design for Interactive Maps: A Case Study in Crime Analysis

    Directory of Open Access Journals (Sweden)

    Robert E. Roth

    2015-02-01

    Full Text Available In this paper, we address the topic of user-centered design (UCD for cartography, GIScience, and visual analytics. Interactive maps are ubiquitous in modern society, yet they often fail to “work” as they could or should. UCD describes the process of ensuring interface success—map-based or otherwise—by gathering input and feedback from target users throughout the design and development of the interface. We contribute to the expanding literature on UCD for interactive maps in two ways. First, we synthesize core concepts on UCD from cartography and related fields, as well as offer new ideas, in order to organize existing frameworks and recommendations regarding the UCD of interactive maps. Second, we report on a case study UCD process for GeoVISTA CrimeViz, an interactive and web-based mapping application supporting visual analytics of criminal activity in space and time. The GeoVISTA CrimeViz concept and interface were improved iteratively by working through a series of user→utility→usability loops in which target users provided input and feedback on needs and designs (user, prompting revisions to the conceptualization and functional requirements of the interface (utility, and ultimately leading to new mockups and prototypes of the interface (usability for additional evaluation by target users (user… and so on. Together, the background review and case study offer guidance for applying UCD to interactive mapping projects, and demonstrate the benefit of including target users throughout design and development.

  18. An Analysis of User Satisfaction of K University’s Library Service

    Directory of Open Access Journals (Sweden)

    Younghee Noh

    2011-06-01

    Full Text Available This study purposed to discover whether or not academic libraries reflect these changing roles. We selected K University as the research target and surveyed user satisfaction of materials, staff services, facilities, electronic devices, media, and so on. The research findings are as follows: 1 the frequency of library visits of University K was on the high side, 2 the primary purpose of using the academic library was associated with learning or reading, therefore, the most used library spaces were related to that, 3 the most used library materials were 'general books', the most unused were 'reference books', 4 the most preferred way to obtain needed materials when failing to find wanted materials was 'Contact librarian'. A similar phenomenon occurred in terms of facility use, 5 university K's users were usually satisfied with the loan policy, 6 the rate of users who don't know whether there is user education was very high, the rate of users who have no experience with user education was extremely low. These research findings can be referenced by library management to improve libraries' service quality and take advantage of complex spatial configurations.

  19. Comparative analysis of vitamin status of schoolchildren in recreational period

    Directory of Open Access Journals (Sweden)

    Podrigalo L.V.

    2013-10-01

    Full Text Available It is a comparative analysis of the characteristics of the vitamin status of schoolchildren during the summer recreation of 90th years of the last century and now. The study involved 167 schoolchildren aged 11-14 years. With the help of questionnaires developed by the authors assessed the severity of symptoms of vitamin deficiency, the prevalence of vitamin supplementation, frequency and volume of consumption of fruits and vegetables. It is confirmed that the saturation is the state of the vitamin in children is the best compared with data from 20 years ago, the state of multi-vitamin deficiency is replaced mono-vitamin deficit. The results, data evaluation and the availability of additional fortification of the diet of fruit and vegetables support the need for measures aimed at improving vitamin status. Using the questionnaire method is most appropriate for monitoring the vitamin status of schoolchildren.

  20. SILAC-based comparative analysis of pathogenic Escherichia coli secretomes

    DEFF Research Database (Denmark)

    Boysen, Anders; Borch, Jonas; Krogh, Thøger Jensen; Hjernø, Karin; Møller-Jensen, Jakob

    -term protection are still needed. In order to identify proteins with therapeutic potential, we have used mass spectrometry-based Stable Isotope Labeling with Amino acids in Cell culture (SILAC) quantitative proteomics method which allows us to compare the proteomes of pathogenic strains to commensal E. coli. In...... this study, we grew the pathogenic strains ETEC H10407, AIEC LF82 and the non-pathogenic reference strain E. coli K-12 MG1655 in parallel and used SILAC to compare protein levels in OMVs and culture supernatant. We have identified well-known virulence factors from both AIEC and ETEC, thus validating...... proteome analysis have the potential to discover both classes of proteins and hence form an important tool for discovering therapeutic targets. Adherent-invasive Escherichia coli (AIEC) and Enterotoxigenic E. coli (ETEC) are pathogenic variants of E. coli which cause intestinal disease in humans. AIEC is...

  1. Peace Negotiations in the Third World: A Comparative Analysis

    Directory of Open Access Journals (Sweden)

    Raúl Benítez Manaut

    1995-01-01

    Full Text Available In this article the negotiations and peace processes in the Third World are analized from a comparative viewpoint in order to focus in on the case of Centroamerica. Reference is made to the special features and common elements of those peace processes in otherregions of the Third World and they are compared to those which have taken place in Centroamerica. It is a retrospective and comparative analysis. For this reason, the author has decided to carry out a brief typology of those conflicts offered by Centroamerica: inNicaragua, El Salvador and Guatemala. Later, the author goes on to analyse the most relevant peace and negotiation processes involving the Third World including one or two from Latin America: the cases of Panama, Afghanistan, Iran-Iraq, Colombia, southern Africa (South Africa, Namibia and Angola and Cambodia. Later, the author goes overthe peace process periods in Centroamerica and the temporary contradictions which are presented by internal conflict, regional conflict and geopolitical conflict. Finally, a comparative methodological exercise is carried out which allows to focus on modes of implementation of the peace processes.

  2. A comparative analysis of Media Lengua and Quichua vowel production.

    Science.gov (United States)

    Stewart, Jesse

    2014-01-01

    This study presents a comparative analysis of F1 and F2 vowel frequencies from Pijal Media Lengua (PML) and Imbabura Quichua. Mixed-effects models are used to test Spanish-derived high and low vowels against their Quichua-derived counterparts for statistical significance. Spanish-derived and Quichua-derived high vowels are also tested against Spanish-derived mid vowels. This analysis suggests that PML may be manipulating as many as eight vowels where Spanishderived high and low vowels coexist as near-mergers with their Quichua-derived counterparts, while high and mid vowels coexist with partial overlap. Quichua, traditionally viewed as a three-vowel system, shows similar results and may be manipulating as many as six vowels. PMID:25721292

  3. Comparative analysis of nonverbal interpersonal communication of schizophrenics and normals.

    Science.gov (United States)

    Hardin, S B

    1980-06-01

    The nonverbal communications of schizophrenics and normals in dyadic interactions were analyzed and compared. Twelve purposively selected women were videotaped in normal-normal, normal-schizophrenic, and schizophrenic-schizophrenic communication acts for 30 minutes. Using a PLATO IV computer program and a modified Kendon Kinesic Notation System, a priori sets of nonverbal behaviors were recorded at 1-second intervals. Frequency and duration scores for the sets of nonverbal behaviors with corresponding communication meanings were totaled. A nested analysis of variance showed that the three groups differed significantly (p less than .05) in engagement and defensiveness and that the normal interactors were the least imitative of the three groups. An analysis and description of the patterns of nonverbal communication also revealed differences, lending support to the theory of dysjunctive schizophrenic communication. PMID:6901546

  4. Comparative Analysis of Methods and Tools for Nuclear Knowledge Preservation

    International Nuclear Information System (INIS)

    This publication draws on the results of a coordinated research project (CRP) on comparative analysis of methods and tools for knowledge preservation in nuclear organizations. The CRP was initiated by the IAEA in order to enhance the capacity of Member States to maintain and preserve the information and knowledge resources related to the peaceful uses of nuclear energy. The project participants explored methods and tools used to capture, interpret, analyse and disseminate data and information, as well as the knowledge ultimately derived from them. Furthermore, a survey tool on the current status of knowledge preservation in nuclear and supporting organizations was developed. The analysis of the survey served as a basis for the recommendations and conclusions on good practices in knowledge preservation. This publication represents the final report of the CRP. The reports of national organizations are presented on the attached CD-ROM.

  5. Comparative Analysis of Methods and Tools for Nuclear Knowledge Preservation

    International Nuclear Information System (INIS)

    This publication draws on the results of a coordinated research project (CRP) on comparative analysis of methods and tools for knowledge preservation in nuclear organizations. The CRP was initiated by the IAEA in order to enhance the capacity of Member States to maintain and preserve the information and knowledge resources related to the peaceful uses of nuclear energy. The project participants explored methods and tools used to capture, interpret, analyse and disseminate data and information, as well as the knowledge ultimately derived from them. Furthermore, a survey tool on the current status of knowledge preservation in nuclear and supporting organizations was developed. The analysis of the survey served as a basis for the recommendations and conclusions on good practices in knowledge preservation. This publication represents the final report of the CRP. The reports of national organizations are presented on this CD-ROM.

  6. A comparative quantitative analysis of Greek orthographic transparency.

    Science.gov (United States)

    Protopapas, Athanassios; Vlahou, Eleni L

    2009-11-01

    Orthographic transparency refers to the systematicity in the mapping between orthographic letter sequences and phonological phoneme sequences in both directions, for reading and spelling. Measures of transparency previously used in the analysis of orthographies of other languages include regularity, consistency, and entropy. However, previous reports have typically been hampered by severe restrictions, such as using only monosyllables or only word-initial phonemes. Greek is sufficiently transparent to allow complete sequential alignment between graphemes and phonemes, therefore permitting full analyses at both letter and grapheme levels, using every word in its entirety. Here, we report multiple alternative measures of transparency, using both type and token counts, and compare these with estimates for other languages. We discuss the problems stemming from restricted analysis sets and the implications for psycholinguistic experimentation and computational modeling of reading and spelling. PMID:19897808

  7. Arabidopsis transcription factors: genome-wide comparative analysis among eukaryotes.

    Science.gov (United States)

    Riechmann, J L; Heard, J; Martin, G; Reuber, L; Jiang, C; Keddie, J; Adam, L; Pineda, O; Ratcliffe, O J; Samaha, R R; Creelman, R; Pilgrim, M; Broun, P; Zhang, J Z; Ghandehari, D; Sherman, B K; Yu, G

    2000-12-15

    The completion of the Arabidopsis thaliana genome sequence allows a comparative analysis of transcriptional regulators across the three eukaryotic kingdoms. Arabidopsis dedicates over 5% of its genome to code for more than 1500 transcription factors, about 45% of which are from families specific to plants. Arabidopsis transcription factors that belong to families common to all eukaryotes do not share significant similarity with those of the other kingdoms beyond the conserved DNA binding domains, many of which have been arranged in combinations specific to each lineage. The genome-wide comparison reveals the evolutionary generation of diversity in the regulation of transcription. PMID:11118137

  8. COMPARATIVE ANALYSIS OF VAT EVOLUTION IN THE EUROPEAN ECONOMIC SYSTEM

    OpenAIRE

    Mihaela Andreea STROE

    2011-01-01

    In this paper we study a comparative analysis of VAT in different states of the world. I made some observation on this theme because I believe that VAT is very important in carrying out transactions and the increase or decrease of this tax has a major impact upon national economies and also on the quality of life in developing countries. The papers has to pourpose to make a comparison between the American and European system of taxation with its advantages and disadvantages and, in the end to...

  9. Cardiovascular disease research in Latin America: A comparative bibliometric analysis

    OpenAIRE

    Adolfo Rubinstein; Daniel Comandé; Eiman Jahangir

    2011-01-01

    AIM: To investigate the number of publications in cardiovascular disease (CVD) in Latin America and the Caribbean over the last decade. METHODS: We performed a bibliometric analysis in PubMed from 2001 to 2010 for Latin America and the Caribbean, the United States, Canada, Europe, China, and India. RESULTS: Latin America published 4% of articles compared with 26% from the United States/Canada and 42% from Europe. In CVD, Latin America published 4% of articles vs 23% from the United States/Can...

  10. Comparing the impacts of renewables: a preliminary analysis

    International Nuclear Information System (INIS)

    This paper describes a framework for comparing the environmental impacts of renewable energy sources such as solar, wind, wave, tidal etc. The approach involves ranking the renewable technologies on the basis of the degree to which the technology interferes with natural energy flows. It is based on analysis of the basic physical factors influencing the degree of interference. Five basic factors were identified: energy flux density, the proportion of energy in flow extracted, the efficiency of the conversion device, the number of conversion processes and the increase in energy flux density. (UK)

  11. Comparative Analysis of the Value Added Tax Evolution

    Directory of Open Access Journals (Sweden)

    Mirela Anca Postole

    2013-06-01

    Full Text Available The impact of indirect taxes is analysed in the study of evolution, especially the VAT for the economic activity of the company studied. During the reporting period, namely January 2009 – December 2011 the supporting documents were checked which records on VAT deductible and collected were based on, in compliance with legal norms and principles of financial accounting. Also the data processed were the basis for an analysis to compare the evolution of VAT. VAT shall be paid for the entire activity of the company.

  12. NOTE FOR EDITOR: Comparative Analysis of Virtual Education Applications

    OpenAIRE

    KURT, Mehmet

    2006-01-01

    The research was conducted in order to make comparative analysis of virtual education applications. The research is conducted in survey model. The study group consists of total 300 institutes providing virtual education in the fall, spring and summer semesters of 2004; 246 in USA, 10 in Australia, 3 in South Africa, 10 in India, 21 in UK, 6 in Japan, 4 in Turkey. The information has been collected by online questionnaire sent to the target mass by e-mail. The questionnaire has been developed ...

  13. Explaining the judicial independence of international courts: a comparative analysis

    DEFF Research Database (Denmark)

    Beach, Derek

    condition. The paper first develops three sets of competing explanatory variables that potentially can explain variations in the judicial independence of ICs. The causal effects of these explanatory variables upon variance in judicial independence are investigated in a comparative analysis of the ACJ, ECJ......What factors allow some international courts (ICs) to rule against the express preferences of powerful member states, whereas others routinely defer to governments? While judicial independence is not the only factor explaining the strength of a given international institution, it is a necessary...

  14. Comparative Analysis of Two Trigeneration Systems for a Rezidential Building

    OpenAIRE

    Tofan, Bogdan-Andrei; Şerbănoiu, Ion; Hoblea, Alin-Enver

    2014-01-01

    Biomass is a global resource that is still being used in traditional ways almost all around the globe, resulting in a waste of its great potential in the production of energy. Romania is a part of those countries that aren’t improving the way some natural resources are used and this was one of the reasons for conducting the study. The study is proposing a comparative analysis of two trigeneration systems, one using biomass and internal combustion engine, and another system that uses micro-tur...

  15. SILAC-based comparative analysis of pathogenic Escherichia coli secretomes

    DEFF Research Database (Denmark)

    Boysen, Anders; Borch, Jonas; Krogh, Thøger Jensen; Hjernø, Karin; Møller-Jensen, Jakob

    -term protection are still needed. In order to identify proteins with therapeutic potential, we have used mass spectrometry-based Stable Isotope Labeling with Amino acids in Cell culture (SILAC) quantitative proteomics method which allows us to compare the proteomes of pathogenic strains to commensal E. coli. In...... proteome analysis have the potential to discover both classes of proteins and hence form an important tool for discovering therapeutic targets. Adherent-invasive Escherichia coli (AIEC) and Enterotoxigenic E. coli (ETEC) are pathogenic variants of E. coli which cause intestinal disease in humans. AIEC is...

  16. GProX, a User-Friendly Platform for Bioinformatics Analysis and Visualization of Quantitative Proteomics Data

    DEFF Research Database (Denmark)

    Rigbolt, Kristoffer T G; Vanselow, Jens T; Blagoev, Blagoy

    2011-01-01

    -friendly platform for comprehensive analysis, inspection and visualization of quantitative proteomics data we developed the Graphical Proteomics Data Explorer (GProX)(1). The program requires no special bioinformatics training, as all functions of GProX are accessible within its graphical user-friendly interface...... which will be intuitive to most users. Basic features facilitate the uncomplicated management and organization of large data sets and complex experimental setups as well as the inspection and graphical plotting of quantitative data. These are complemented by readily available high-level analysis options...... graphical displays in both vector and bitmap formats. The generic import requirements allow data originating from essentially all mass spectrometry platforms, quantitation strategies and software to be analyzed in the program. GProX represents a powerful approach to proteomics data analysis providing...

  17. GENOVA: a generalized perturbation theory program for various applications to CANDU core physics analysis (II) - a user's manual

    International Nuclear Information System (INIS)

    A user's guide for GENOVA, a GENeralized perturbation theory (GPT)-based Optimization and uncertainty analysis program for Canada deuterium uranium (CANDU) physics VAriables, was prepared. The program was developed under the framework of CANDU physics design and analysis code RFSP. The generalized perturbation method was implemented in GENOVA to estimate the zone controller unit (ZCU) level upon refueling operation and calculate various sensitivity coefficients for fuel management study and uncertainty analyses, respectively. This documentation contains descriptions and directions of four major modules of GENOVA such as ADJOINT, GADJINT, PERTURB, and PERTXS so that it can be used as a practical guide for GENOVA users. This documentation includes sample inputs for the ZCU level estimation and sensitivity coefficient calculation, which are the main application of GENOVA. The GENOVA can be used as a supplementary tool of the current CANDU physics design code for advanced CANDU core analysis and fuel development

  18. HYDRA-II: A hydrothermal analysis computer code: Volume 2, User's manual

    International Nuclear Information System (INIS)

    HYDRA-II is a hydrothermal computer code capable of three-dimensional analysis of coupled conduction, convection, and thermal radiation problems. This code is especially appropriate for simulating the steady-state performance of spent fuel storage systems. The code has been evaluated for this application for the US Department of Energy's Commercial Spent Fuel Management Program. HYDRA-II provides a finite-difference solution in cartesian coordinates to the equations governing the conservation of mass, momentum, and energy. A cylindrical coordinate system may also be used to enclose the cartesian coordinate system. This exterior coordinate system is useful for modeling cylindrical cask bodies. The difference equations for conservation of momentum incorporate directional porosities and permeabilities that are available to model solid structures whose dimensions may be smaller than the computational mesh. The equation for conservation of energy permits modeling of orthotropic physical properties and film resistances. Several automated methods are available to model radiation transfer within enclosures and from fuel rod to fuel rod. The documentation of HYDRA-II is presented in three separate volumes. Volume 1 - Equations and Numerics describes the basic differential equations, illustrates how the difference equations are formulated, and gives the solution procedures employed. This volume, Volume 2 - User's Manual, contains code flow charts, discusses the code structure, provides detailed instructions for preparing an input file, and illustrates the operation of the code by means of a sample problem. The final volume, Volume 3 - Verification/Validation Assessments, provides a comparison between the analytical solution and the numerical simulation for problems with a known solution. 6 refs

  19. Comparation studies of uranium analysis method using spectrophotometer and voltammeter

    International Nuclear Information System (INIS)

    Comparation studies of uranium analysis method by spectrophotometer and voltammeter had been done. The objective of experiment is to examine the reliability of analysis method and instrument performance by evaluate parameters; linearity, accuracy, precision and detection limit. Uranyl nitrate hexahydrate is used as standard, and the sample is solvent mixture of tributyl phosphate and kerosene containing uranium (from phosphoric acid purification unit Petrokimia Gresik). Uranium (U) stripping in the sample use HN03 0,5 N and then was analyzed by using of both instrument. Analysis of standard show that both methods give a good linearity by correlation coefficient > 0,999. Spectrophotometry give accuration 99,34 - 101,05 % with ratio standard deviation (RSD) 1,03 %; detection limit (DL) 0,05 ppm. Voltammetry give accuration 95,63 -101,49 % with RSD 3,91 %; detection limit (DL) 0,509 ppm. On the analysis of sludge samples were given the significantly different in result; spectrophotometry give U concentration 4,445 ppm by RSD 6,74 % and voltammetry give U concentration 7,693 by RSD 19,53%. (author)

  20. CIVIL LIABILITY FOR NUCLEAR DAMAGE: COMPARATIVE ANALYSIS OF INTERNATIONAL TREATIES

    Directory of Open Access Journals (Sweden)

    Laura Rimšaitė

    2013-06-01

    Full Text Available It was widely accepted that nuclear damage might be extensive and spread to other countries. International civil liability for nuclear damage is embodied by two major instruments: International Atomic Energy Agency (IAEA 1963 Vienna Convention on Civil liability for Nuclear Damage and Paris Convention of 1960 on third party liability (OECD with its amending protocols. Major problem arises because of lack of coherence and for this reason supplementary conventions and protocols has been adopted but sufficient results has not been achieved. International treaties on civil liability for nuclear damage are mostly based upon principles of operator’s exclusive, channeling, strict liability for nuclear damage, mandatory financial coverage, compensation without discrimination. These principles set ground for the appropriate compensation standard thus minimizing the difficulty level of complicated legal cross-actions and identifies certain subjects in individual cases who are liable also allows a concentration of the insurance capacity. Although Conventions sets similar principles, Europe remains in two different liability regimes which cover differences of liability amounts, scope of application, rules of jurisdiction conflicts. Problem of legal coherence at European Union level also arises because Member States are either parties to the Paris Convention or Vienna Convention at different speeds. This research paper provides an in-depth analysis of international legal framework development and impetus to create trans-boundary compensation mechanisms thus to foster development of European Union nuclear energy market and to provide higher protection for victims inside and outside the country where the incident has occurred. Purpose – provide comparative analysis of international treaties which regulate civil liability for nuclear damage in the context of European Union nuclear energy market development. Design/methodology - paper is based on document analysis, systemic, comparative analysis method by comparing different conventions and its implications. Findings – two liability regimes set different liability amount for the operator and some additional implications to the State and with its amendments provides additional compensation options from all contracting parties collected funds. However the problem rises for the operator to provide insurance whereas Vienna convention only sets minimum liability amount and it is up to state to decide on liability limits or even to provide unlimited liability for the operator. In this case operator faces difficulties to find appropriate insurance as it has to be guaranteed for certain amount. Another situation when a State provides very high maximum amount of the operator’s liability therefore state aid problem arises because there is a need for state guarantee or when there are several operators and not all of them need this amount of insurance because they are being decommissioned. Research limitations – to analyze liability regimes in the light of cohesion and harmonization of regimes also the obligation of the nuclear installation operator to provide insurance when maximum amounts or blank indemnity are set by national law. Practical implication – This comparative analysis provides a background on further discussions concerning the nuclear operator’s liability and insurance limits issues and cohesion between two regimes by providing a harmonized model throughout European Union. Originality – Only a few authors have analyzed some aspects of nuclear liability there is still a lack of academic insights into nuclear liability regimes and insurance issues in the light of competition law. This work provides insights into nuclear liability issues and will certainly be valuable in practice when developing nuclear projects. Keywords: civil liability for nuclear damage, Vienna Convention, Paris Convention, operator of nuclear installation, strict liability, comparative analysis. Research type: research paper

  1. Performance Analysis and Evaluation of UWB Wireless Computer Network for Multi-users and Dynamic Channel Environment

    Directory of Open Access Journals (Sweden)

    Safa Saad Hussein

    2013-01-01

    Full Text Available Ultra wideband (UWB technology has been widely used for wireless communication systems including long and short ranges. Wireless computer network is a short range communication system. The present study provides a detailed analysis and performance evaluation of an Ultra-Wideband wireless computer network in a dynamic environment. This includes multi-users state, various modulation schemes and different channel models. Time-Hopping multiple access technique (TH has been selected to evaluate the network performance in multi-users environment. In addition, three modulation techniques including Pulse Position Modulation (TH-PPM, Binary Phase Shift Keying (TH-BPSK and Quadrature Amplitude Modulation (QAM have been used in this analysis. Two types of channel models for each modulation scheme have been used to simulate dynamic environment. The channel models are CM1 (line-of-sight and/or CM3 (Non-line-of-sight along with AWGN (IEEE 802.15.3a. Simulation results show that performance of the local area wireless computer network is highly dependent on the channel environment, the maximum allowable number of active users and the receiver structure. Therefore, prior information of the channel model as well as maximum number of active users is required to optimize the desired performance of the wireless computer network for a specific receiver model.

  2. Comparative Analysis of Different Cryptosystems for Hierarchical Mobile IPv6-based Wireless Mesh Network

    Directory of Open Access Journals (Sweden)

    Ramanarayana Kandikattu

    2010-05-01

    Full Text Available Wireless Mesh Network (WMN is advocated as the major supporting technology for the next generation wireless Internet satisfying the needs of anywhere-anytime broadband Internet access. In order to support secure ubiquitous communications for mobile users, WMN must have an efficient key setup procedure to secure control packets as well as data packets. In this paper we apply four different cryptosystems, namely: (1 RSA; (2 Elliptic Curve Digital Signature Algorithm (ECDSA (3 Identity-Based Cryptography (IBC; and, (4 Elliptic Curve Cryptography-Based Public Key Cryptosystem (ECCSCPKC, to secure Hierarchical Mobile IPv6 (HMIPv6 based WMN. We present detailed cost analysis and numerical results to compare these systems for their suitability to secure HMIPv6 based WMN.

  3. CRITICAL FACTORS AND COMPARATIVE ANALYSIS THAT INFLUENCING THE REGISTRATION OF DOMAIN NAME

    Directory of Open Access Journals (Sweden)

    Norul Bahriyah Shaari

    2014-03-01

    Full Text Available Growth and increasing use worldwide domain is inconsistent with growth of world population. Although in terms of domain usage statistics across the world increased, but the distribution of the domain name registration unevenly between countries around the world. There are a number of users of the gap between the domain names countries around the world. The technologies domain name system (DNS, marketing strategic, domain names services and other factors such as economy in the country, culture, environment, educational, geographical location, political, internet activity trends and so on, are also influenced the use and registration of the domain name. Malaysia is also one of the countries categorized as a developing country that is still minimal use of domain names compared to the rate of population, consumer internet and social media. This paper also presents the comparative analysis is the item-by-item comparison critical factors that influence the registration of domain name. This paper shows how perspectives can be used for comparative analysis, summarizes a soundness proof for critical factors that influence the registration of domain name.

  4. COMPARATIVE ANALYSIS OF SATISFACTION IN HOSPITAL TREATMENT AMONG CARDIOLOGICAL PATIENTS

    Directory of Open Access Journals (Sweden)

    Y. G. Shvarts

    2015-12-01

    Full Text Available Aim. To evaluate satisfaction in hospital treatment among cardiological patients and to compare the received data with results of the program Massachusetts Health Quality Partners (MHQP Statewide Patient Survey, which is noted for high representation of the data (analysis of 12680 patient questionnaires obtained from 51 medical institutions of the state of Massachusetts.Material ?nd methods. Questioning of patients in internal medicine clinic was carried out. We used Picker Institute questions, the same questionnaire which was used in program MHQP.Results. 376 patients took part in questioning. Preferences of cardiological patients did not differ from preferences of other therapeutic patients. On such criteria as respect for a patient, organization of treatment, rendering the information and physical comfort, satisfaction of our and American patients is quite comparable. Estimation of emotional support is somewhat lower at domestic patients. Involvement of a family to the treatment process is not sufficient both in our clinic, and in the American hospitals. All the patients were mostly unsatisfied in the process of discharge.Conclusion. The estimations of hospital treatment made by patients from clinics of different countries are similar very much. The process of discharge has got the lowest estimation by the surveyed patients. The form of final conversation and its environment require further analysis and correction.

  5. 2004/2008 labour market information comparative analysis report

    International Nuclear Information System (INIS)

    The electricity sector has entered into a phase of both challenges and opportunities. Challenges include workforce retirement, labour shortages, and increased competition from other employers to attract and retain the skilled people required to deliver on the increasing demand for electricity in Canada. The electricity sector in Canada is also moving into a new phase, whereby much of the existing infrastructure is either due for significant upgrades, or complete replacement. The increasing demand for electricity means that increased investment and capital expenditure will need to be put toward building new infrastructure altogether. The opportunities for the electricity industry will lie in its ability to effectively and efficiently react to these challenges. The purpose of this report was to provide employers and stakeholders in the sector with relevant and current trend data to help them make appropriate policy and human resource decisions. The report presented a comparative analysis of a 2004 Canadian Electricity Association employer survey with a 2008 Electricity Sector Council employer survey. The comparative analysis highlighted trends and changes that emerged between the 2004 and 2008 studies. Specific topics that were addressed included overall employment trends; employment diversity in the sector; age of non-support staff; recruitment; and retirements and pension eligibility. Recommendations were also offered. It was concluded that the electricity sector could benefit greatly from implementing on-going recruitment campaigns. refs., tabs., figs

  6. Comparative risk evaluation for siting a waste analysis laboratory

    International Nuclear Information System (INIS)

    With the US Department of Energy (DOE) focus on environmental restoration and waste management at DOE nuclear waste sites, a significant increase is forecast in the quantity of transuranic (TRU) mixed waste samples that require detailed environmental analysis. Under the direction of the laboratory management branch (EM-532), Westinghouse Hanford Company (Westinghouse Hanford) was commissioned to lead the preparation of an engineering study for site selection of the proposed $300-million DOE Waste Analysis Laboratory (WAL). This assessment provides the DOE with important comparative risk information and data in the site selection process. The six DOE sites under consideration are Hanford Site (HANF), Idaho National Engineering Laboratory (INEL), Los Alamos National Laboratory (LANL), Savannah River Site (SRS), Rocky Flats Plant (RFP), and Oak Ridge National Laboratory (ORNL). The study evaluates relative risk contributions from transportation in terms of severe transportation accidents per year and from external events in terms of respective frequency of exceedance. Detailed calculations and relevant information are documented in report WHC-SD-WM-ES-190. This comparative risk assessment provides an objective engineering study that HANF is the most desirable location for the proposed WAL. The favorable safety data for the HANF can be translated to less risk for identical construction or less cost for achieving the same level of safety

  7. Thermal buckling comparative analysis using Different FE (Finite Element) tools

    Energy Technology Data Exchange (ETDEWEB)

    Banasiak, Waldemar; Labouriau, Pedro [INTECSEA do Brasil, Rio de Janeiro, RJ (Brazil); Burnett, Christopher [INTECSEA UK, Surrey (United Kingdom); Falepin, Hendrik [Fugro Engineers SA/NV, Brussels (Belgium)

    2009-12-19

    High operational temperature and pressure in offshore pipelines may lead to unexpected lateral movements, sometimes call lateral buckling, which can have serious consequences for the integrity of the pipeline. The phenomenon of lateral buckling in offshore pipelines needs to be analysed in the design phase using FEM. The analysis should take into account many parameters, including operational temperature and pressure, fluid characteristic, seabed profile, soil parameters, coatings of the pipe, free spans etc. The buckling initiation force is sensitive to small changes of any initial geometric out-of-straightness, thus the modeling of the as-laid state of the pipeline is an important part of the design process. Recently some dedicated finite elements programs have been created making modeling of the offshore environment more convenient that has been the case with the use of general purpose finite element software. The present paper aims to compare thermal buckling analysis of sub sea pipeline performed using different finite elements tools, i.e. general purpose programs (ANSYS, ABAQUS) and dedicated software (SAGE Profile 3D) for a single pipeline resting on an the seabed. The analyses considered the pipeline resting on a flat seabed with a small levels of out-of straightness initiating the lateral buckling. The results show the quite good agreement of results of buckling in elastic range and in the conclusions next comparative analyses with sensitivity cases are recommended. (author)

  8. Comparative Pathway Analyzer--a web server for comparative analysis, clustering and visualization of metabolic networks in multiple organisms.

    Science.gov (United States)

    Oehm, Sebastian; Gilbert, David; Tauch, Andreas; Stoye, Jens; Goesmann, Alexander

    2008-07-01

    In order to understand the phenotype of any living system, it is essential to not only investigate its genes, but also the specific metabolic pathway variant of the organism of interest, ideally in comparison with other organisms. The Comparative Pathway Analyzer, CPA, calculates and displays the differences in metabolic reaction content between two sets of organisms. Because results are highly dependent on the distribution of organisms into these two sets and the appropriate definition of these sets often is not easy, we provide hierarchical clustering methods for the identification of significant groupings. CPA also visualizes the reaction content of several organisms simultaneously allowing easy comparison. Reaction annotation data and maps for visualizing the results are taken from the KEGG database. Additionally, users can upload their own annotation data. This website is free and open to all users and there is no login requirement. It is available at https://www.cebitec.uni-bielefeld.de/groups/brf/software/cpa/index.html. PMID:18539612

  9. COMPARATIVE ANALYSIS OF TOPSIS AND FUZZY TOPSIS FOR THE EVALUATION OF TRAVEL WEBSITE SERVICE QUALITY

    Directory of Open Access Journals (Sweden)

    Golam Kabir

    2012-09-01

    Full Text Available The Internet revolution has led to significant changes in the way travel agencies interact with customers. Travel websites provide customers diverse services including travel information and products through the Internet. In practical envir onments, Internet users face a variety of travel website service quality (TWSQ that is vague from human beings' subjective judgments, and most criteria have some degree of interdependent or interactive characteristics. In the face of the strong competitio n environment, in order to profit by making customers proceed with transactions on the websites, travel websites should pay more attention to improve their service quality. This study discusses the major factors for travel agency websites quality from the viewpoint of users' perception and explores the use of multiple - attribute decision making (MADM approaches for the evaluation of TWSQ. A comparative analysis of Technique for Order Preference by Similarity to Ideal Solution (TOPSIS and Fuzzy TOPSIS metho ds are illustrated through a practical application from the websites of five travel agencies. Empirical results showed that the proposed methods are viable approaches in solving the evaluation problem of TWSQ.

  10. Analysis of user characteristics related to drop-off detection with long cane

    Directory of Open Access Journals (Sweden)

    Dae Shik Kim, PhD

    2010-05-01

    Full Text Available This study examined how user characteristics affect drop-off detection with the long cane. A mixed-measures design with block randomization was used for the study, in which 32 visually impaired adults attempted to detect the drop-offs using different cane techniques. Younger cane users detected drop-offs significantly more reliably (mean +/- standard deviation = 74.2% +/- 11.2% of the time than older cane users (60.9% +/- 10.8%, p = 0.009. The drop-off detection threshold of the younger participants (5.2 +/- 2.1 cm was also statistically significantly smaller than that of the older participants (7.9 +/- 2.2 cm, p = 0.007. Those with early-onset visual impairment (78.0% +/- 9.0% also detected drop-offs significantly more reliably than those with later-onset visual impairment (67.3% +/- 12.4%, p = 0.01. No interaction occurred between examined user characteristics (age and age at onset of visual impairment and the type of cane technique used in drop-off detection. The findings of the study may help orientation and mobility specialists select appropriate cane techniques in accordance with the cane user's age and onset of visual impairment.

  11. The Comparative Analysis of Aversive and Ordinary Noise.

    Science.gov (United States)

    Mobley, C. Marion, Jr.

    There is a vast amount of literature concerning the psychological and physiological effects of ordinary noise on the individual. However, few publications have addressed the analysis of aversive noise. This research analyzes three noises which produce the familiar goose flesh or chilling effect responsivity. These aversive sounds which are made by chalk squeaking on the chalkboard, fingernails on the chalkboard and rubbing styrofoam against a smooth surface are digitally compared to ordinary noise to show how these aversive sounds differ from sounds which are only annoying. This work, which uses Fast Fourier Transform (FFT) analysis is a combination with cross correlation analysis and other innovative methods to produce comparative data on noises, illustrates subtle differences between ordinary and aversive noise which may be useful for future work in acoustics or experimental psychology. The literature review shows disagreement among the numerous works on the effects of ordinary noise on human subjects. One explanation for this difference is the failure to adequately measure and define the dynamic nature of the noise used. The existing literature also establishes that a mixture of tones plus random noise is more annoying (but not aversive) than either the random noise or the tones alone. This investigation shows that one property of aversive noises is the combination of randomness plus tones which vary rapidly with time. This paper utilizes a new digital technique which improves the FFT analyzer resolution by a factor of 25. The resulting +/-2 Hz accuracy facilitated the presentation of frequency variation as a function of time data. Other computer generated graphical data includes the percent harmonic deviation as a function of time, the rate of change of fundamental frequency, and the rate of change in harmonic deviation. From these dynamic data, average values are calculated which show the aversive noise to be consistently greater in mean frequency deviation, average frequency deviation rate, harmonic deviation, and harmonic deviation rate. The cross correlation analysis is used to compare aversive sounds to each other and then the aversive sounds to ordinary noise. The results show average cross correlations among aversive sounds to be 0.91 while the aversive to ordinary noise cross correlation averages 0.57. This work includes 326 computer generated graphical presentations of the dynamic properties of noise.

  12. SCANS (Shipping Cask ANalysis System) a microcomputer-based analysis system for shipping cask design review: User`s manual to Version 3a. Volume 1, Revision 2

    Energy Technology Data Exchange (ETDEWEB)

    Mok, G.C.; Thomas, G.R.; Gerhard, M.A.; Trummer, D.J.; Johnson, G.L. [Lawrence Livermore National Lab., CA (United States)

    1998-03-01

    SCANS (Shipping Cask ANalysis System) is a microcomputer-based system of computer programs and databases developed at the Lawrence Livermore National Laboratory (LLNL) for evaluating safety analysis reports on spent fuel shipping casks. SCANS is an easy-to-use system that calculates the global response to impact loads, pressure loads and thermal conditions, providing reviewers with an independent check on analyses submitted by licensees. SCANS is based on microcomputers compatible with the IBM-PC family of computers. The system is composed of a series of menus, input programs, cask analysis programs, and output display programs. All data is entered through fill-in-the-blank input screens that contain descriptive data requests. Analysis options are based on regulatory cases described in the Code of Federal Regulations 10 CFR 71 and Regulatory Guides published by the US Nuclear Regulatory Commission in 1977 and 1978.

  13. Consumption capability analysis for Micro-blog users based on data mining

    OpenAIRE

    Yue Sun

    2013-01-01

    Data mining is an effective method of discovering useful information in a large amount of data. The capability of understanding the user’s consumption is vital for a company. Discovering the significant customers allows the company to focus on the most valuable customers. This paper uses micro-blog users’ check-in data and shop information for analysis and cluster method of data mining. We analyze user’s spending ability quantitatively based on user’s check-in actions. Compared wi...

  14. A User Friendly Approach for Design and Economic Analysis of Standalone SPV System

    OpenAIRE

    Sheeraz Kirmani

    2015-01-01

    This paper presents the use of solar energy for generation of electrical energy through solar pho-tovoltaic (SPV) system to meet the load requirement of a domestic building. Complete design and economic analysis of SPV system for different costs of SPV module is done and compared with grid electricity for with and without storage conditions. The results of the study encourage the use of SPV system for a residential building and show that SPV system is an economically viable option to meet the...

  15. MethLAB: a graphical user interface package for the analysis of array-based DNA methylation data.

    Science.gov (United States)

    Kilaru, Varun; Barfield, Richard T; Schroeder, James W; Smith, Alicia K; Conneely, Karen N

    2012-03-01

    Recent evidence suggests that DNA methylation changes may underlie numerous complex traits and diseases. The advent of commercial, array-based methods to interrogate DNA methylation has led to a profusion of epigenetic studies in the literature. Array-based methods, such as the popular Illumina GoldenGate and Infinium platforms, estimate the proportion of DNA methylated at single-base resolution for thousands of CpG sites across the genome. These arrays generate enormous amounts of data, but few software resources exist for efficient and flexible analysis of these data. We developed a software package called MethLAB (http://genetics.emory.edu/conneely/MethLAB) using R, an open source statistical language that can be edited to suit the needs of the user. MethLAB features a graphical user interface (GUI) with a menu-driven format designed to efficiently read in and manipulate array-based methylation data in a user-friendly manner. MethLAB tests for association between methylation and relevant phenotypes by fitting a separate linear model for each CpG site. These models can incorporate both continuous and categorical phenotypes and covariates, as well as fixed or random batch or chip effects. MethLAB accounts for multiple testing by controlling the false discovery rate (FDR) at a user-specified level. Standard output includes a spreadsheet-ready text file and an array of publication-quality figures. Considering the growing interest in and availability of DNA methylation data, there is a great need for user-friendly open source analytical tools. With MethLAB, we present a timely resource that will allow users with no programming experience to implement flexible and powerful analyses of DNA methylation data. PMID:22430798

  16. Mycobacterial species as case-study of comparative genome analysis.

    Science.gov (United States)

    Zakham, F; Belayachi, L; Ussery, D; Akrim, M; Benjouad, A; El Aouad, R; Ennaji, M M

    2011-01-01

    The genus Mycobacterium represents more than 120 species including important pathogens of human and cause major public health problems and illnesses. Further, with more than 100 genome sequences from this genus, comparative genome analysis can provide new insights for better understanding the evolutionary events of these species and improving drugs, vaccines, and diagnostics tools for controlling Mycobacterial diseases. In this present study we aim to outline a comparative genome analysis of fourteen Mycobacterial genomes: M. avium subsp. paratuberculosis K—10, M. bovis AF2122/97, M. bovis BCG str. Pasteur 1173P2, M. leprae Br4923, M. marinum M, M. sp. KMS, M. sp. MCS, M. tuberculosis CDC1551, M. tuberculosis F11, M. tuberculosis H37Ra, M. tuberculosis H37Rv, M. tuberculosis KZN 1435 , M. ulcerans Agy99,and M. vanbaalenii PYR—1, For this purpose a comparison has been done based on their length of genomes, GC content, number of genes in different data bases (Genbank, Refseq, and Prodigal). The BLAST matrix of these genomes has been figured to give a lot of information about the similarity between species in a simple scheme. As a result of multiple genome analysis, the pan and core genome have been defined for twelve Mycobacterial species. We have also introduced the genome atlas of the reference strain M. tuberculosis H37Rv which can give a good overview of this genome. And for examining the phylogenetic relationships among these bacteria, a phylogenic tree has been constructed from 16S rRNA gene for tuberculosis and non tuberculosis Mycobacteria to understand the evolutionary events of these species. PMID:21396338

  17. Comparative analysis of EPA cost-benefit methodologies

    Energy Technology Data Exchange (ETDEWEB)

    Poch, L.; Gillette, J.; Veil, J.

    1998-05-01

    In recent years, reforming the regulatory process has received much attention from diverse groups such as environmentalists, the government, and industry. A cost-benefit analysis can be a useful way to organize and compare the favorable and unfavorable impacts a proposed action night have on society. Since 1981, two Executive Orders have required the U.S. Environmental Protection Agency (EPA) and other regulatory agencies to perform cost-benefit analyses in support of regulatory decision making. At the EPA, a cost-benefit analysis is published as a document called a regulatory impact analysis (RIA). This report reviews cost-benefit methodologies used by three EPA program offices: Office of Air and Radiation, Office of Solid Waste, and Office of Water. These offices were chosen because they promulgate regulations that affect the policies of this study`s sponsor (U.S. Department of Energy, Office of Fossil Energy) and the technologies it uses. The study was conducted by reviewing 11 RIAs recently published by the three offices and by interviewing staff members in the offices. To draw conclusions about the EPA cost-benefit methodologies, their components were compared with those of a standard methodology (i.e., those that should be included in a comprehensive cost-benefit methodology). This study focused on the consistency of the approaches as well as their strengths and weaknesses, since differences in the cost-benefit methodologies themselves or in their application can cause confusion and preclude consistent comparison of regulations both within and among program offices.

  18. Comparative QTL analysis and its application to cereal breeding

    International Nuclear Information System (INIS)

    Following the construction of comprehensive genetic maps for almost all the major crop species, application of marker assisted selection can become a major tool in plant breeding. However, successful application of this approach requires that a portfolio of the tagged genes that control the traits of interest be established within each individual species. Since many of the important agronomic traits are quantitative in nature, this first requires the mapping of quantitative trait loci (QTL) using established and new statistical approaches. However, QTL analysis can now be considered in a wider context, since the great advantage of molecular markers over conventional markers is that DNA probes hybridize across crosses within the same species, across genomes within polyploid species, and frequently across independent genomes of taxonomically related species. Thus, comparative genetic analysis allows a new approach to gene location, provides new insights into gene action and gives breeders access to a wider spectrum of genes. Two major uses of comparative mapping approaches to map QTL within and between cereal genomes are discussed. First, it is shown that within many polyploid and genome duplicated species the homology of marker loci and the collinearity of maps allow QTL locations in one genome to be extrapolated to another, for example, in bread wheat and maize. Second, it is shown that genetic analysis in one species can be indicative of the presence of homologous genes in another species and that hitherto undetected genes in a related species can be identified. Examples from studies of the QTL that control grain quality in wheat, and adaptation and responses to abiotic stress, in particular low temperatures, in wheat and barley, are presented. (author). 15 refs, 3 figs, 1 tab

  19. Extreme storm surges: a comparative study of frequency analysis approaches

    Science.gov (United States)

    Hamdi, Y.; Bardet, L.; Duluc, C.-M.; Rebour, V.

    2014-08-01

    In France, nuclear facilities were designed around very low probabilities of failure. Nevertheless, some extreme climatic events have given rise to exceptional observed surges (outliers) much larger than other observations, and have clearly illustrated the potential to underestimate the extreme water levels calculated with the current statistical methods. The objective of the present work is to conduct a comparative study of three approaches to extreme value analysis, including the annual maxima (AM), the peaks-over-threshold (POT) and the r-largest order statistics (r-LOS). These methods are illustrated in a real analysis case study. All data sets were screened for outliers. Non-parametric tests for randomness, homogeneity and stationarity of time series were used. The shape and scale parameter stability plots, the mean excess residual life plot and the stability of the standard errors of return levels were used to select optimal thresholds and r values for the POT and r-LOS method, respectively. The comparison of methods was based on (i) the uncertainty degrees, (ii) the adequacy criteria and tests, and (iii) the visual inspection. It was found that the r-LOS and POT methods have reduced the uncertainty on the distribution parameters and return level estimates and have systematically shown values of the 100 and 500-year return levels smaller than those estimated with the AM method. Results have also shown that none of the compared methods has allowed a good fit at the right tail of the distribution in the presence of outliers. As a perspective, the use of historical information was proposed in order to increase the representativeness of outliers in data sets. Findings are of practical relevance, not only to nuclear energy operators in France, for applications in storm surge hazard analysis and flood management, but also for the optimal planning and design of facilities to withstand extreme environmental conditions, with an appropriate level of risk.

  20. In silico comparative genomic analysis of GABAA receptor transcriptional regulation

    Directory of Open Access Journals (Sweden)

    Joyce Christopher J

    2007-06-01

    Full Text Available Abstract Background Subtypes of the GABAA receptor subunit exhibit diverse temporal and spatial expression patterns. In silico comparative analysis was used to predict transcriptional regulatory features in individual mammalian GABAA receptor subunit genes, and to identify potential transcriptional regulatory components involved in the coordinate regulation of the GABAA receptor gene clusters. Results Previously unreported putative promoters were identified for the β2, γ1, γ3, ε, θ and π subunit genes. Putative core elements and proximal transcriptional factors were identified within these predicted promoters, and within the experimentally determined promoters of other subunit genes. Conserved intergenic regions of sequence in the mammalian GABAA receptor gene cluster comprising the α1, β2, γ2 and α6 subunits were identified as potential long range transcriptional regulatory components involved in the coordinate regulation of these genes. A region of predicted DNase I hypersensitive sites within the cluster may contain transcriptional regulatory features coordinating gene expression. A novel model is proposed for the coordinate control of the gene cluster and parallel expression of the α1 and β2 subunits, based upon the selective action of putative Scaffold/Matrix Attachment Regions (S/MARs. Conclusion The putative regulatory features identified by genomic analysis of GABAA receptor genes were substantiated by cross-species comparative analysis and now require experimental verification. The proposed model for the coordinate regulation of genes in the cluster accounts for the head-to-head orientation and parallel expression of the α1 and β2 subunit genes, and for the disruption of transcription caused by insertion of a neomycin gene in the close vicinity of the α6 gene, which is proximal to a putative critical S/MAR.

  1. In silico comparative genomic analysis of GABAA receptor transcriptional regulation

    Science.gov (United States)

    Joyce, Christopher J

    2007-01-01

    Background Subtypes of the GABAA receptor subunit exhibit diverse temporal and spatial expression patterns. In silico comparative analysis was used to predict transcriptional regulatory features in individual mammalian GABAA receptor subunit genes, and to identify potential transcriptional regulatory components involved in the coordinate regulation of the GABAA receptor gene clusters. Results Previously unreported putative promoters were identified for the ?2, ?1, ?3, ?, ? and ? subunit genes. Putative core elements and proximal transcriptional factors were identified within these predicted promoters, and within the experimentally determined promoters of other subunit genes. Conserved intergenic regions of sequence in the mammalian GABAA receptor gene cluster comprising the ?1, ?2, ?2 and ?6 subunits were identified as potential long range transcriptional regulatory components involved in the coordinate regulation of these genes. A region of predicted DNase I hypersensitive sites within the cluster may contain transcriptional regulatory features coordinating gene expression. A novel model is proposed for the coordinate control of the gene cluster and parallel expression of the ?1 and ?2 subunits, based upon the selective action of putative Scaffold/Matrix Attachment Regions (S/MARs). Conclusion The putative regulatory features identified by genomic analysis of GABAA receptor genes were substantiated by cross-species comparative analysis and now require experimental verification. The proposed model for the coordinate regulation of genes in the cluster accounts for the head-to-head orientation and parallel expression of the ?1 and ?2 subunit genes, and for the disruption of transcription caused by insertion of a neomycin gene in the close vicinity of the ?6 gene, which is proximal to a putative critical S/MAR. PMID:17603907

  2. Comparative analysis of solid waste management in 20 cities.

    Science.gov (United States)

    Wilson, David C; Rodic, Ljiljana; Scheinberg, Anne; Velis, Costas A; Alabaster, Graham

    2012-03-01

    This paper uses the 'lens' of integrated and sustainable waste management (ISWM) to analyse the new data set compiled on 20 cities in six continents for the UN-Habitat flagship publication Solid Waste Management in the World's Cities. The comparative analysis looks first at waste generation rates and waste composition data. A process flow diagram is prepared for each city, as a powerful tool for representing the solid waste system as a whole in a comprehensive but concise way. Benchmark indicators are presented and compared for the three key physical components/drivers: public health and collection; environment and disposal; and resource recovery--and for three governance strategies required to deliver a well-functioning ISWM system: inclusivity; financial sustainability; and sound institutions and pro-active policies. Key insights include the variety and diversity of successful models - there is no 'one size fits all'; the necessity of good, reliable data; the importance of focusing on governance as well as technology; and the need to build on the existing strengths of the city. An example of the latter is the critical role of the informal sector in the cities in many developing countries: it not only delivers recycling rates that are comparable with modern Western systems, but also saves the city authorities millions of dollars in avoided waste collection and disposal costs. This provides the opportunity for win-win solutions, so long as the related wider challenges can be addressed. PMID:22407700

  3. Security Analysis and Improvement of User Authentication Framework for Cloud Computing

    Directory of Open Access Journals (Sweden)

    Nan Chen

    2014-01-01

    Full Text Available Cloud Computing, as an emerging, virtual, large-scale distributed computing model, has gained increasing attention these years. Meanwhile it also faces many secure challenges, one of which is authentication. In this paper, we firstly analyze a user authentication framework for cloud computing proposed by Amlan Jyoti Choudhury et al and point out the security attacks existing in the protocol. Then we propose an improved user authentication scheme. Our improved protocol ensures user legitimacy before entering into the cloud. The confidentiality and the mutual authentication of our protocol are formally proved by the strand space model theory and the authentication test method. The simulation illustrates that the communication performance of our scheme is efficient

  4. Power Quality Analysis of Photovoltaic Generation Integrated in User-Side Grid

    Directory of Open Access Journals (Sweden)

    Zhou Chang

    2013-04-01

    Full Text Available This paper analyzes impacts of grid-connected photovoltaic power plant on the harmonic current in the power quality aspect of distribution network, Summaries the requirement of harmonic current injecting in grid caused by photovoltaic power plant which connected in user side. Based on the DIgSILENT PowerFactory simulation platform, this paper simulates harmonic current injecting into grid in one case of grid-connected photovoltaic generation and then analyzes it by build models of photovoltaic generation and power grid belonged the user. The result illustrated that the harmonic current caused by user side grid connected photovoltaic generation injecting into grid satisfies standards requirements, the photovoltaic generation system should have 400kvar reactive power regulation capability.

  5. Virtual World Currency Value Fluctuation Prediction System Based on User Sentiment Analysis.

    Science.gov (United States)

    Kim, Young Bin; Lee, Sang Hyeok; Kang, Shin Jin; Choi, Myung Jin; Lee, Jung; Kim, Chang Hun

    2015-01-01

    In this paper, we present a method for predicting the value of virtual currencies used in virtual gaming environments that support multiple users, such as massively multiplayer online role-playing games (MMORPGs). Predicting virtual currency values in a virtual gaming environment has rarely been explored; it is difficult to apply real-world methods for predicting fluctuating currency values or shares to the virtual gaming world on account of differences in domains between the two worlds. To address this issue, we herein predict virtual currency value fluctuations by collecting user opinion data from a virtual community and analyzing user sentiments or emotions from the opinion data. The proposed method is straightforward and applicable to predicting virtual currencies as well as to gaming environments, including MMORPGs. We test the proposed method using large-scale MMORPGs and demonstrate that virtual currencies can be effectively and efficiently predicted with it. PMID:26241496

  6. Web User Behavior Analysis Using Improved Naïve Bayes Prediction Algorithm

    Directory of Open Access Journals (Sweden)

    B.Harindra Varma

    2013-11-01

    Full Text Available With the continued growth and proliferation of Web services and Web based information systems, the volumes of user data have reached astronomical proportions. Analyzing such data using Web Usage Mining can help to determine the visiting interests or needs of the web user. As web log is incremental in nature, it becomes a crucial issue to predict exactly the ways how users browse websites. It is necessary for web miners to use predictive mining techniques to filter the unwanted categories for reducing the operational scope. Markov models& its variations have also been used to analyze web navigation behavior of users. A user's web link transition on a particular website can be modeled using first, second-order or higher-order Markov models and can be used to make predictions regarding future navigation and to personalize the web page for an individual user. All higher order Markov model holds the promise of achieving higher prediction accuracies, improved coverage than any single-order Markov model but holds high state space complexity. Hence a Hybrid Markov Model is required to improve the operation performance and prediction accuracy significantly. Markov model is assumed to be a probability model by which users’ browsing behaviors can be predicted at category level. Bayesian theorem can also be applied to present and infer users’ browsing behaviors at webpage level. In this research, Markov models and Bayesian theorem are combined and a two-level prediction model is designed. By the Markov Model, the system can effectively filter the possible category of the websites and Bayesian theorem will help to predict websites accuracy. The experiments will show that our provided model has noble hit ratio for prediction.

  7. User-Centered Design for Interactive Maps: A Case Study in Crime Analysis

    OpenAIRE

    Roth, Robert E.; Kevin S. Ross; Alan M. MacEachren

    2015-01-01

    In this paper, we address the topic of user-centered design (UCD) for cartography, GIScience, and visual analytics. Interactive maps are ubiquitous in modern society, yet they often fail to “work” as they could or should. UCD describes the process of ensuring interface success—map-based or otherwise—by gathering input and feedback from target users throughout the design and development of the interface. We contribute to the expanding literature on UCD for interactive maps in two ways. First, ...

  8. Comparative Genomics and Transcriptomic Analysis of Mycobacterium Kansasii

    KAUST Repository

    Alzahid, Yara

    2014-04-01

    The group of Mycobacteria is one of the most intensively studied bacterial taxa, as they cause the two historical and worldwide known diseases: leprosy and tuberculosis. Mycobacteria not identified as tuberculosis or leprosy complex, have been referred to by ‘environmental mycobacteria’ or ‘Nontuberculous mycobacteria (NTM). Mycobacterium kansasii (M. kansasii) is one of the most frequent NTM pathogens, as it causes pulmonary disease in immuno-competent patients and pulmonary, and disseminated disease in patients with various immuno-deficiencies. There have been five documented subtypes of this bacterium, by different molecular typing methods, showing that type I causes tuberculosis-like disease in healthy individuals, and type II in immune-compromised individuals. The remaining types are said to be environmental, thereby, not causing any diseases. The aim of this project was to conduct a comparative genomic study of M. kansasii types I-V and investigating the gene expression level of those types. From various comparative genomics analysis, provided genomics evidence on why M. kansasii type I is considered pathogenic, by focusing on three key elements that are involved in virulence of Mycobacteria: ESX secretion system, Phospholipase c (plcb) and Mammalian cell entry (Mce) operons. The results showed the lack of the espA operon in types II-V, which renders the ESX- 1 operon dysfunctional, as espA is one of the key factors that control this secretion system. However, gene expression analysis showed this operon to be deleted in types II, III and IV. Furthermore, plcB was found to be truncated in types III and IV. Analysis of Mce operons (1-4) show that mce-1 operon is duplicated, mce-2 is absent and mce-3 and mce-4 is present in one copy in M. kansasii types I-V. Gene expression profiles of type I-IV, showed that the secreted proteins of ESX-1 were slightly upregulated in types II-IV when compared to type I and the secreted forms of ESX-5 were highly down regulated in the same types. Differentially expressed genes in types II-IV were also evaluated and validated by qPCR for selected genes. This study gave a general view of the genome of this bacterium and its types, highlighted some different aspects of its subtypes and supplemented by gene expression data.

  9. Subchannel Notching and Channel Bonding: Comparative Analysis of Opportunistic Spectrum OFDMA Designs

    CERN Document Server

    Park, Jihoon; Grønsund, Pål; Čabrić, Danijela

    2010-01-01

    We present an analytical model that enables a comparison of multiple design options of Opportunistic Spectrum Orthogonal Frequency Division Multiple Access (OS-OFDMA). The model considers continuous and non-continuous subchannel allocation algorithms, as well as different ways to bond separate non-continuous frequency bands. Different user priorities and channel dwell times, for the Secondary Users and the Primary Users of the radio spectrum, are studied. Further, the model allows the inclusion of different types of Secondary User traffic. Finally, the model enables the study of multiple two-stage spectrum sensing algorithms. Analysis is based on a discrete time Markov chain model which allows for the computation of network characteristics such as the average throughput. From the analysis we conclude that OS-OFDMA with subchannel notching and channel bonding could provide, under certain network configurations, almost seven times higher throughput than the design without those options enabled.

  10. Comparative Analysis of Probabilistic Models for Activity Recognition with an Instrumented Walker

    CERN Document Server

    Omar, Farheen; Truszkowski, Jakub; Poupart, Pascal; Tung, James; Caine, Allen

    2012-01-01

    Rollating walkers are popular mobility aids used by older adults to improve balance control. There is a need to automatically recognize the activities performed by walker users to better understand activity patterns, mobility issues and the context in which falls are more likely to happen. We design and compare several techniques to recognize walker related activities. A comprehensive evaluation with control subjects and walker users from a retirement community is presented.

  11. Development of Graphical User Interface for Finite Element Analysis of Static Loading of a Column using MATLAB

    OpenAIRE

    Moses Omolayo PETINRIN

    2010-01-01

    In this work, the capability of MATLAB software package to develop graphical user interface (GUI) package was demonstrated. A GUI was successfully developed using MATLAB programming language to study the behaviour of a suspended column under uniaxial static loading by solving the numerical model created based on the finite element method (FEM). The comparison between the exact solution from previous researches and the numerical analysis showed good agreement. The column average strain, averag...

  12. Pro-Anorexia and Anti-Pro-Anorexia Videos on YouTube: Sentiment Analysis of User Responses

    OpenAIRE

    Oksanen, Atte; Garcia, David; Sirola, Anu; Näsi, Matti; Kaakinen, Markus; Keipi, Teo; Räsänen, Pekka

    2015-01-01

    Background Pro-anorexia communities exist online and encourage harmful weight loss and weight control practices, often through emotional content that enforces social ties within these communities. User-generated responses to videos that directly oppose pro-anorexia communities have not yet been researched in depth. Objective The aim was to study emotional reactions to pro-anorexia and anti-pro-anorexia online content on YouTube using sentiment analysis. Methods Using the 50 most popular YouTu...

  13. Performance Analysis and Evaluation of UWB Wireless Computer Network for Multi-users and Dynamic Channel Environment

    OpenAIRE

    Safa Saad Hussein; Aliaa Youssif; Hussein Hamed Mahmoud Ghouz

    2013-01-01

    Ultra wideband (UWB) technology has been widely used for wireless communication systems including long and short ranges. Wireless computer network is a short range communication system. The present study provides a detailed analysis and performance evaluation of an Ultra-Wideband wireless computer network in a dynamic environment. This includes multi-users state, various modulation schemes and different channel models. Time-Hopping multiple access technique ...

  14. A broad analysis of marketing strategies for their incorporation as activities in a user-centered process

    OpenAIRE

    Borza, Iunia-Cristina

    2014-01-01

    The present work represents an analysis between two different fields, which are: Economics, addressing the Marketing field and Human-Computer Interaction, by studying the Usability field. The motivation of this present work is based on the fact that there is no systematic adoption in the form of activities and techniques focused on the development, that allow conducting a formal integration of Marketing techniques in User-Centred development processes. The main goal of this project has been t...

  15. Imaging hydrated microbial extracellular polymers: Comparative analysis by electron microscopy

    Energy Technology Data Exchange (ETDEWEB)

    Dohnalkova, A.C.; Marshall, M. J.; Arey, B. W.; Williams, K. H.; Buck, E. C.; Fredrickson, J. K.

    2011-01-01

    Microbe-mineral and -metal interactions represent a major intersection between the biosphere and geosphere but require high-resolution imaging and analytical tools for investigating microscale associations. Electron microscopy has been used extensively for geomicrobial investigations and although used bona fide, the traditional methods of sample preparation do not preserve the native morphology of microbiological components, especially extracellular polymers. Herein, we present a direct comparative analysis of microbial interactions using conventional electron microscopy approaches of imaging at room temperature and a suite of cryogenic electron microscopy methods providing imaging in the close-to-natural hydrated state. In situ, we observed an irreversible transformation of the hydrated bacterial extracellular polymers during the traditional dehydration-based sample preparation that resulted in their collapse into filamentous structures. Dehydration-induced polymer collapse can lead to inaccurate spatial relationships and hence could subsequently affect conclusions regarding nature of interactions between microbial extracellular polymers and their environment.

  16. Comparative Analysis of Visco-elastic Models with Variable Parameters

    Directory of Open Access Journals (Sweden)

    Silviu Nastac

    2010-01-01

    Full Text Available The paper presents a theoretical comparative study for computational behaviour analysis of vibration isolation elements based on viscous and elastic models with variable parameters. The changing of elastic and viscous parameters can be produced by natural timed evolution demo-tion or by heating developed into the elements during their working cycle. It was supposed both linear and non-linear numerical viscous and elastic models, and their combinations. The results show the impor-tance of numerical model tuning with the real behaviour, as such the characteristics linearity, and the essential parameters for damping and rigidity. Multiple comparisons between linear and non-linear simulation cases dignify the basis of numerical model optimization regarding mathematical complexity vs. results reliability.

  17. Recurrence quantification analysis to compare the machinability of steels

    Directory of Open Access Journals (Sweden)

    Ravish

    2011-01-01

    Full Text Available Machinability, though is a simple term, is difficult to generalize. But nevertheless, it can be realized as the ease or difficulty with which a material can be machined. Assessing the machinability of various materials before they are used in commercial manufacturing is very demanding, as the machinability affects the material removal rate, surface finish of the workpiece, cutting power consumption and tool wear rate. The present work aims at establishing Recurrence Quantification Analysis, a relatively new technique in the study of chaotic systems, as a potential tool to establish and compare the machinability of steels. The technique has its roots in quantifying the Recurrence Plots obtained by the phase space reconstruction of time domain signals. Variation in Determinism, one of the variables of the technique, is used as a mean to establish the comparison of machinability.

  18. Comparative Analysis of Fare Collection System on Bus Operations

    Directory of Open Access Journals (Sweden)

    M.H. Hafezi

    2012-01-01

    Full Text Available This study presents a comparative analysis of fare collection systems for inter-city bus operation. One of the important issues in the bus scheduling model is stops of buses in the bus stations (called dwell time -where buses have to stop for boarding and alighting passengers in the bus station. This issue has a direct impact on increased travel time. Subsequently, increased travel time for one bus mission can cause delay in the loops of bus scheduling. This article describes a survey of fare collection systems for bus operations, covering two fare collection systems: paying cash and using the touch-n-go card. We studied this issue in a real case inter-city bus operation. It has been highlighted that a fare collection system using the touch-n-go card has higher efficiency than other the cash method in relation to reducing dwell time of buses in the bus station.

  19. Comparative Evaluation and Analysis of IAX and RSW

    Directory of Open Access Journals (Sweden)

    Manjur S Kolhar

    2009-12-01

    Full Text Available Voice over IP (VoIP is a technology to transport media over IP networks such as the Internet. VoIP has the capability of connecting people over packet switched networks instead of traditional circuit switched networks. Recently, the InterAsterisk Exchange Protocol (IAX has emerged as a new VoIP which is gaining popularity among VoIP products. IAX is known for its simplicity, NAT-friendliness, efficiency, and robustness. More recently, the Real time Switching (RSW control criterion has emerged as a multimedia conferencing protocol. In this paper, we made a comparative evaluation and analysis of IAX and RSW using Mean Opinion Score rating (MOS and found that they both perform well under different network packet delays in ms. Keywords-VoIP; MOS; InterAsterisk eXchange Protocol and Real Time Switching Control Criteria.

  20. COMPARATIVE ANALYSIS OF VAT EVOLUTION IN THE EUROPEAN ECONOMIC SYSTEM

    Directory of Open Access Journals (Sweden)

    MIHAELA ANDREEA STROE

    2011-04-01

    Full Text Available In this paper we study a comparative analysis of VAT in different states of the world. I made some observation on this theme because I believe that VAT is very important in carrying out transactions and the increase or decrease of this tax has a major impact upon national economies and also on the quality of life in developing countries. The papers has to pourpose to make a comparison between the American and European system of taxation with its advantages and disadvantages and, in the end to render an economic model and its statistics components. VAT is a value added tax which appeared about 50 years, initially with two purposes: one to replace certain indirect taxes, and another to reduce the budget deficit according to the faith of that time. The first country that has adopted this model was France, calling it today as value-added tax.