bluuebunny/crossref_metadata_2025 huggingface dataset:
Entre agents de l'État et professionnels libéraux : Analyse empirique de la réforme des notaires portugais
Authors: Tavares António F. , Rodrigues Miguel A.
Published: June 2013

Depuis les années 80, on fait de plus en plus appel aux mécanismes de marché en tant que solution alternative à la prestation de service public. La présente étude s’intéresse à une fonction singulière de la fonction publique – les notaires – et tente d’analyser les facteurs qui ont conduit à la formation de structures de marché différentes suite au choix opéré par certains notaires, qui ont préféré suivre la voie de la privatisation au lieu de conserver leur statut de fonctionnaire. Le gouvernement portugais a autorisé les notaires à opter pour le privé et prévu un numerus clausus de notaires par circonscription. Depuis la fin de la réforme, différentes structures de marché sont présentes dans les 278 arrondissements notariaux. Notre principale hypothèse est que des marchés comportant plusieurs agents se sont formés dans les arrondissements où les actes notariés et juridiques sont plus nombreux et plus rentables et assurent la survie financière et le profit. En revanche, des monopoles se sont formés sous l’effet de l’absence perçue d’opportunités commerciales et de demande. Pendant la période 2010-2011, nous avons recueilli des données émanant de statistiques officielles du système notarial, que nous avons complétées par des données sur les caractéristiques économiques et démographiques de chaque arrondissement. Nous avons effectué une régression logistique multinomiale pour vérifier l’hypothèse principale concernant la structure du marché dans les 278 arrondissements notariaux du Portugal continental. Remarques à l’intention des praticiens La tendance à la dérégulation de la profession notariale risque de continuer à progresser dans les pays de l’Union européenne. Des enseignements peuvent être tirés de l’expérience portugaise, où l’abandon du statut de fonctionnaire n’est pas encore obligatoire pour tous les notaires, mais où la privatisation semble être l’option inévitable compte tenu des contraintes financières et des pressions budgétaires.
Invisible Authorities and Visible Authorizations in “Rompecabezas” by Natalia Smirnoff
Authors: Mullaly Laurence H.
Published: June 2013

In the Argentinian cinema of the end of the 90’s and beginning of the 21st century, the representations of femininity and masculinity have become richer thanks to alternative visions, most frequently proposed by female directors. Natalia Smirnoff’s film Rompecabezas (Puzzle) is a perfect example. It tells the story of an ordinary woman whose psychosexual awakening shakes up the invisible forces that had dictated her life up to that point. Rompecabezas explores the everlasting effect and influence on the patriarchal structures in constructing identity. The aim of this work, rooted in a gender perspective, is to study in what way both hierarchy and symbolic systems operate and to what extent Natalia Smirnoff provides us with a powerful (re)vision of transformation for women.
Software Tool for Assessment of Complexity and Variability in Physiological Signals of Respiration
Authors: Jablonski Ireneusz , Subzda Kamil , Mroczka Janusz
Published: June 2013

In this paper, the authors examine software implementation and the initial preprocessing of data and tools during the assessment of the complexity and variability of long physiological time-series. The algorithms presented advance a bigger Matlab library devoted to complex system and data analysis. Commercial software is unavailable for many of these functions and is generally unsuitable for use with multi-gigabyte datasets. Reliable inter-event time extraction from input signal is an important step for the presented considerations. Knowing the distribution of the inter-event time distances, it is possible to calculate exponents due to power-law scaling. From a methodology point of view, simulations and considerations with experimental data supported each stage of the work presented. In this paper, initial calibration of the procedures with accessible data confirmed assessments made during earlier studies, which raise objectivity of measurements planned in the future.
Impedance-Based Wireless Sensor Network for Metal-Protective Coating Evaluation
Authors: Yu Ronghua , Zhou Qixin , Wang Yechun , You Chao
Published: June 2013

Researchers have been focused on the influences of flowing fluid on the corrosion of bare metals, but there is little emphasis on the degradation of metal-protective coating. Evaluating the metal-protective coating usually uses the Electrochemical Impedance Spectroscopy (EIS) method. EIS is a technique used for evaluating coating permeability or barrier performance based on the electrical impedance of coating. This paper presents a new impedance-based wireless sensor network for metal-protective coating evaluation. This wireless sensor network consists of two parts: impedance-based wireless sensor nodes and a wireless data base that are equipped with a network analyzer (AD5933) and a RF transceiver (CC1111/CC1110). In the experiment, there are three coating panels immersed in flowing deionized water (DI water) and one coating panel immersed in stationary DI water. Experimental results demonstrate that the proposed wireless sensor network is capable to evaluate the coating degrading.
Design, Development and Testing of a Semi Cylindrical Capacitive Array Type Liquid Interface Level Sensor
Authors: Pal Sagarika , Mukherjee Ramtanu , Ganguly Sharmi
Published: June 2013

In this study, a semi cylindrical capacitive array type liquid interface level measuring sensor is described. The sensor consists of a continuous large semi cylindrical thin metallic plate acting as a common plate of the capacitor and an array of small semi cylindrical thin metallic plates, separated by very small gap distance. All plates are mounted along the outer wall of a cylindrical non conducting vertical storage tank. The detection of liquid interface is based on the measurement of capacitance of the array of plates which varies with the dielectric constant of the liquid within the tank. The measured capacitance has been obtained in nano farad range. Since the sensor is non contact type, it can be used for both conducting and non conducting type of liquid contained within a non conducting tank. Experimental results confirm the satisfactory performance of the sensor for liquid interface level measurement.
Knowledge Sharing Centric Competitive Business Intelligence to Guide Convergence
Authors: Chu Mei-Tai
Published: June 2013

This chapter discusses how knowledge sharing can increase enterprise business intelligence in the era of high business convergence. How the consequence of knowledge sharing would help achieve various business intelligence initiatives such as competitive intelligence, strategy formulation, facilitating organisational learning, and ultimately achieving competitive advantage to possess sustainable development is discovered. This chapter conducts a qualitative assessment to reveal interrelationships between knowledge sharing and competitive advantage and examine which incentive mechanisms can encourage knowledge sharing behaviour and relative importance among them at a firm level. The research findings unveil how knowledge sharing plays a vital role in fabricating the link between competitive advantage and organisational learning. The preferred knowledge sharing mechanism can help managers to allocate appropriate resources to motivate knowledge workers to share better. It also better aligns with business strategies by helping the organisation in collective knowledge and pursues an appropriate corresponding system to face fierce challenges internally and externally.
Comparative Analysis of Selected Websites of Brokerage Houses in Poland
Authors: Chmielarz Witold
Published: June 2013

The main objective of this chapter is to identify the most important criteria for assessing Websites of brokerage houses and to specify a Website that is optimal from the point of view of a small, individual customer. At the beginning of the chapter, the author presents general assumptions of the study and discussions concerning the applied evaluation criteria. Subsequently, particular Websites are characterized from the point of view of distinguished features. In the final parts of the chapter, the author presents a summary resulting from the comparison and conclusions of the analysis.
Analysis of Facts for Companies Going Public through Social Media
Authors: Mallick Dilip Kumar , Routray Susmi
Published: June 2013

Social media is altering interpersonal and social connections, empowering new forms of commitment and contribution. The emergence of social media has a dramatic impact on the current commercial environment. The power of authority has shifted from business to potential consumers. Going wrong in social media can have a huge impact on a business. However, at the same time, the huge potential of the medium cannot be overlooked. In this chapter, the authors compile a review of the cases where companies have undervalued or misused the power of social media. The research is basically a secondary market analysis wherein the failures have been identified and analyzed. Based on the analysis of the cases, the chapter suggests elucidation for companies going public through social media.
Compliance and Regulatory Standards for Cloud Computing
Authors: Singh Jitendra , Kumar Vikas
Published: June 2013

Cloud computing is expanding in reach, with its utility-based features and enhanced agility. Still, there is a big concern about the privacy and security of the data. Because of these concerns, third-party cloud users are employing the cloud only for less sensitive data, and the advantage of cloud computing is not fully harnessed. In order to ensure the privacy and security of data, proper compliance and regulatory standards become very important for the cloud domain. Although a number of such standards exist for the traditional computing, they must be modified for their wider adoption to the cloud platforms. This chapter considers the worldwide available standards in the technical and non-technical categories for wider coverage of the cloud platforms. In the technical category, security standards presently followed by cloud computing have been discussed, while in the non-technical category, privacy and accounting standards like HIPPA, SAS 70, GAPP, etc. have been considered.
Data Protection
Authors: Kaur Rajinder , Mehrotra Prabal
Published: June 2013

The right to privacy, characterised by Justice Brandeis in Olmestead v. United States (1928)277 US 438 as the “right to be let alone: the most comprehensive of rights and the right most valued by civilised men,” is recognized under India’s constitution by the Supreme Court in four rulings: Kharak Singh v. State of Uttar Pradesh and Ors. AIR 1963 SC 1295; Govind v. State of Madhya Pradesh and Anr. (1975)2 SCC 148; R. Rajagopal alias R.R. Gopal and Anr. v. State of Tamil Nadu and Ors. (1994)6 SCC 632; and District Registrar and Collector, Hyderabad and Anr. v. Canara Bank (2005)1 SCC 496.1 This aim of this chapter is to analyze the legislative provisions prevalent in India, especially those afforded by the Information Technology (Amendment) Act, 2008, and the Ministry of Communication and Information Technology, Government of India, and also the legislative provisions accorded to data protection in the United Kingdom and the United States of America, so as to be able to reach a conclusion that will address the need for data protection law(s).
High-Integrity Model-Based Development
Authors: Lano Kevin , Kolahdouz-Rahimi Shekoufeh
Published: June 2013

Model-Based Development (MBD) has become increasingly used for critical systems, and it is the subject of the MBDV supplement to the DO-178C standard. In this chapter, the authors review the requirements of DO-178C for model-based development, and they identify ways in which MBD can be combined with formal verification to achieve DO-178C requirements for traceability and verifiability of models. In particular, the authors consider the implications for model transformations, which are a central part of MBD approaches, and they identify how transformations can be verified using formal methods tools.
Runtime Integration Capability for Distributed Model Driven Applications
Authors: Davis Jon
Published: June 2013

Geographically distributed organizations face unique challenges to effectively implement shared information services across the enterprise. Traditional solutions require options such as establishing large centralized application and database servers, which simplifies some data integration issues but involves higher associated centralization risks with potential scalability limitations, or establishing multiple de-centralized application servers optionally arranged in hierarchical hubs, requiring significant customization and data migration functions to be developed, reducing the level of risk but incurring additional expenditure on data integration and transfer. Our ongoing development of a distributed temporal meta-data framework for Enterprise Information Systems (EIS) applications seeks to overcome these issues with the application logic model supporting the capability for direct integration with similar distributed application instances to readily provide: data replication, transfer, and transformations; centralized authorization and distribution of core identity data; sharing and deployment of modified logic model elements; and workflow integration between application instances.
CMF
Authors: Barbier Guillaume , Cucchi Véronique , Pinet François , Hill David R. C.
Published: June 2013

This chapter shows how Model Driven Engineering (MDE) can contribute to the production of Crop models. The ITK firm works in agronomy; it designs digital models and Decision Support Systems for croppers. Common model development at ITK relies on a dual implementation. The first one in Matlab® is usually proposed by agronomists, but for industrial purposes, software engineers translate this model in Java. This leads to double implementation, maintenance, and heavy production costs. To deal with this efficiency problem, the authors use a MDE approach to produce a Crop Model Factory (CMF). For this factory they propose a DSML (Domain Specific Modeling Language) formalized by a metamodel. In this chapter, the authors present this DSML, the concrete syntax retained for the factory, and its implementation in a tool enabling automatic code generation. The resulting Crop Model Factory (CMF) prototype is the fruit of an interdisciplinary collaboration, and they also present feedback on this working experience.
Process for the Validation of System Architectures against Requirements
Authors: Pflüger André , Golubski Wolfgang , Queins Stefan
Published: June 2013

The development of systems consisting of hardware and software is a challenging task for the system architect. On the one hand, he has to consider an increasing number of system requirements, including the dependencies between them for designing the system architecture; on the other hand, he has to deal with a shortened time-to-market period and requirements changes of the customers up to the implementation phase. This chapter presents a process that enables the architect to validate the system architecture against the architecture-relevant requirements. The process is part of the system design phase and can be integrated in the iterative design of the system architecture. In order to keep track of all requirements, including their dependencies, the architect clusters the requirements according to architecture-specific aspects, the so-called validation targets. For each target he defines examinations processes and check criteria to define the validation status. If all targets are valid, i.e., all check criteria are met by the result of the examination processes, the system architecture itself is valid. Instead of formal validation techniques like model checking, the approach prefers simulations for the examination processes. The approach uses model-based documentation based on the Unified Modeling Language (UML). All data required for the simulations is part of an UML model and extracted to configure and run the simulations. Therefore, changes in the model affect the validation result directly. The process supports the architect in building a system architecture that fulfills the architecture-relevant requirements, and it supports the architect in analyzing the impacts after requirements or architecture changes. A tool facilitates the work effort of the architect by partly automating the major process steps.
Demystifying Domain Specific Languages
Authors: Kahlaoui Abdelilah , Abran Alain
Published: June 2013

Domain Specific Languages (DSLs) provide interesting characteristics that align well with the goals and mission of model-driven software engineering. However, there are still some issues that hamper widespread adoption. In this chapter, the authors discuss two of these issues. The first relates to the vagueness of the term DSL, which they address by studying the individual terms: domain, specificity, and language. The second is related to the difficulty of developing DSLs, which they address with a view to making DSL development more accessible via processes, standards, and tools.
Dynamic Spectrum Access Techniques
Authors: Amraoui Asma , Benmammar Badr
Published: June 2013

The authors found a large number of suggested works relating to spectrum access, those using Auctions, a large number of approaches use the Game theory, but those using Markov chains are fewer. However, some research has been done in this area using Multi Agent Systems (MAS).
The Development and Change of Teachers’ Strategic Knowledge in Teachers’ Online Community of Practice
Authors: Feng Tao , Wang Lu , Zhou MengYa
Published: June 2013

To obtain the development and change of teachers’ strategic knowledge in teachers’ online community of practice (TOCP) in China, content analysis, video case analysis and statistical analysis methods were adopted to study 45 teachers (15 novice teachers, 15 key teachers, and 15 experienced teachers) from three participating schools during three phases. The development and change of different teacher groups’ strategic knowledge and the general characteristics of their strategic knowledge have been concluded respectively. It can be concluded that TOCP has changed teachers’ professional learning model, constantly improved their strategic knowledge and positively influenced different teacher groups’ strategic knowledge.
The Analysis on the Assimilation of the Model of Corporate Governance
Authors: Takahiro Sato , Jia Pan
Published: June 2013

Companies in different countries have different corporate governance systems. One of the reasons is that the trade cost dealing in the society and other economic factors are different in different countries. View from this angle, corporate governance systems should have the value that can reduce the costs. However, observing the situations of corporate governance in the real society, we will find the reasons of formation of corporate governance systems are not so simple. Understanding the formation of different corporate governance systems, we should pay more attention to the elements like society and culture. The process of formation has relationship with legitimacy such as the company roles that the society expects, and this kind of concept forms the concept of social responsibility, and at last form the particular model of corporate governance.
Experiment to Test RTK GPS with Satellite “Internet to Tractor” for Precision Agriculture
Authors: Lyle Stacey D.
Published: June 2013

This experiment tests the ability to provide Real Time Kinematic Global Positioning System corrections via a real time network (RTK GPSRTN) by utilizing a satellite Internet connections in the field to multiple tractors for precision agriculture. Precision agriculture technology improves sustainable production by providing more farmers with the ability to obtain highly accurate machine control in rough or varied terrain. This experiment tests the use of low cost single frequency L1-band RTK GPS in a RTN covering a wide area. Wired Internet is not available in the field for many farmers so cellular internet such as 3G/4G must be relied on for connectivity. Where 3G/4G have limited coverage, satellite Internet could be used. A mobile satellite Internet antenna can be placed on a support vehicle and moved to a site where multiple tractors are harvesting or planting. The Internet is then shared with precision agriculture farming equipment nearby. Having better logistical and fiscal access to machine control and the Internet could assist the farmer and the United States Department of Agriculture in efforts to sustain adequate crop yields, project future agriculture needs, and better protect crops from pests and diseases. This experiment provides information on how to configure “Internet to Tractor” for RTK GPS RTN concept with a discussion of the limitations and future product development.
Estimation of the Temperatures in an Experimental Infrared Heated Greenhouse Using Neural Network Models
Authors: Kavga Angeliki , Kappatos Vassilis
Published: June 2013

A high quality greenhouse control demands continuous measurements of indoor and outdoor greenhouse conditions. In this work, neural network models were used for reducing the cost and the time of temperature measurements, estimating two of the most important parameters in the operation of the greenhouse, namely the inside air temperature and the cover temperature of greenhouse. An extensive experimental investigation was carried out in an infrared heated greenhouse, using the experimental data to train and validate the neural network models. The modelling results show that the estimated temperatures have been in good agreement with the experimental data with accuracy ranging from 95.64% to 97.67%.
Representations of Topological Relations Between Simple Regions in Description Logics
Authors: Roussey Catherine , Pinet François , Schneider Michel
Published: June 2013

This paper proposes an operational approach to (1) formalize, in Description Logics (DL), the topological relations between simple regions and (2) automatically check whether a set of relations is consistent. The solution allows for the use of traditional DL reasoners (Pellet, Fact++, etc.) to check the consistency of relations and detect the sources of error. The solution does not require any specific extension of the DL or reasoner. The authors demonstrate how to apply this approach with Protégé and Fact++. Different spatial relations in agricultural and environmental applications are also provided to illustrate the possible uses of our method.
Monitoring Power Quality in Microgrids Based on Disturbances Propagation Algorithms
Authors: Miron Anca , Chindris Mircea D. , Sumper Andreas
Published: June 2013

The paper shows how the surveying of power quality in microgrids working under unbalanced harmonic distorted operating states with possible voltage dips and voltage swells existence can be accomplished implying a small amount of time and measurement activities. The surveying methodology uses the disturbances propagation phenomenon to determine the power quality indices in all of interest nodes of the microgrid utilizing the voltages and currents characteristics in one or several strategic nodes. The disturbances propagation is based on the sequence component theory applied for all detected harmonics and for the microgrids components. The proposed surveying methodology was implemented in a virtual instrument capable to acquire the voltages and currents waveforms, to analyze them in order to identify the disturbances characteristics, to calculate the disturbances propagation and display the power quality indices in all of interest nodes of the microgrid. The virtual instrument was tested using several microgrid topologies and scenarios.
Comparative Assessment on the Ecologic and Economic Impact of New Road Technologies Integrating Reclaimed Asphalt Pavement
Authors: Nicuță Alina Mihaela , Andrei Radu , Budescu Mihai
Published: June 2013

The features and interdependences between environment and economics, connected to the construction of asphalt road pavements, can be evaluated by a wide diversity of decision support tools. The characteristics of these tools and the complementary informative system provide complex assessments. Their final purpose is to ensure an optimum sustainable constructive solution. The present paper aims, along a comparative analysis, to evaluate the environmental and economic impact resulted from the construction of road pavements with asphalt mixtures that integrate different percentages of RAP. The objective was to highlight the characteristics, benefits and limitations of these procedures and conclude on their usage and viability. The evaluation was performed according to LCA and LCC methodology and facilitated by asPECT computer software. Performing this study was intended to facilitate the researchers and practitioners analytical choice and to offer a personal overview on the topic.
The Optimization of Microgrids Operation through a Heuristic Energy Management Algorithm
Authors: Tomoiaga Bogdan , Chindris Mircea D. , Sumper Andreas , Marzband Mousa
Published: June 2013

The concept of microgrid was first introduced in 2001 as a solution for reliable integration of distributed generation and for harnessing their multiple advantages. Specific control and energy management systems must be designed for the microgrid operation in order to ensure reliable, secure and economical operation; either in grid-connected or stand-alone operating mode. The problem of energy management in microgrids consists of finding the optimal or near optimal unit commitment and dispatch of the available sources and energy storage systems so that certain selected criteria are achieved. In most cases, energy management problem do not satisfy the Bellman's principle of optimality because of the energy storage systems. Consequently, in this paper, an original fast heuristic algorithm for the energy management on stand-alone microgrids, which avoids wastage of the existing renewable potential at each time interval, is presented. A typical test microgrid has been analysed in order to demonstrate the accuracy and the promptness of the proposed algorithm. The obtained cost of energy is low (the quality of the solution is high), the primary adjustment reserve is correspondingly assured by the energy storage system and the execution runtime is very short (a fast algorithm). Furthermore, the proposed algorithm can be used for real-time energy management systems.
SiadEnv Safety and Communication Features in Real Life Scenarios
Authors: Trandabat Alexandru , Pislaru Marius , Trandabat Diana
Published: June 2013

SiadEnv system was designed to keep track of the energy consumes in residential and industrial buildings. This will analyze and compute the energy consume real need in various scenarios. The main objective of SiadEnv is to reduce the energy losses by taking action and modifying the room settings. Thus, SiadEnv computes the difference between outdoor and indoor temperature and adjusts the heating or cooling management in order to maintain the comfort index and to reduce the energy consume. Moreover, it contains indoor safety modules that prevent or reduce the impact of unwanted events such as flood, fire, motion control (thief entry etc). Due to SiadEnv modular design based on wireless sensors networks, the fire monitoring safety module can be easy reconfigured in order to extend its applications. As further work, the SiadEnv safety module will be redesigned into a new application with important social economic and environmental impact, which will use monitor forest fire and predict its dynamic, in order to provide crucial data for forest salvation.
The Importance of Nanoparticles Addition in a Base Fluid Flow through a Porous Medium
Authors: Cimpean Dalia Sabina
Published: June 2013

The present study is focused on the mixed convection fluid flow through a porous medium, when a different amount of nanoparticles is added in the base fluid. The nanofluid saturates the porous matrix and different situations of the flow between two walls are presented and discussed. Alternatively mathematical models are presented and discussed. A solution of a system which contains the momentum, Darcy and energy equations, together with the boundary conditions involved, is given. The behavior of different nanofluids, such thatAu-water, Ag-waterandFe-wateris graphically illustrated and compared with the previous results.The research target is to observe the substantial increase of the thermophysical fluid properties, when the porous medium issaturated by a nanofluid instead of a classical Newtonian fluid.
Modelling of Airport Rigid Pavement for Complex Configuration of Landing Gears and for a Large Spectrum of Cement Concrete
Authors: Cojocaru Radu , Radu Andrei , Budescu Mihai
Published: June 2013

The purpose of this paper is to develop new design diagrams in order to complete the actual Romanian standard. This addendum is justified by the fact that the current design diagrams are elaborated for a single value of the E - dynamic elasticity modulus (in Romanian standard E = 30000 MPa) and of the Poisson ratio (in Romanian standard ν = 0.15). Therefore the diagrams from the Romanian standard NP034-99 do not permit the design for other types of concrete cement with improved characteristics with elasticity modulus E 30000 until E = 50000 MPa or of the Rolled Compacted Concrete (RCC) with Poisson ratio ν = 0.25 or of the other concrete types as cement concretes with recycled aggregates or steel fibre reinforced concrete. The first part of the paper presents the stress design methodology based on the finite element software and on the parameters which interfere in the design calculation. In addition to the diagrams from the Romanian standard which apply only to an external load up to a four wheel bogie, the diagrams with loads with six wheel bogie are introduced. Further are shown the differences between the stress calculated with single values from the actual Romanian standard and the stress calculated with the exact values of the considered parameters [E dynamic elasticity modulus and the Poisson ratio]. The study relies on the specific load of modern aircrafts (like Airbus - A380, Boeing - B777) that have six footprints tire in the landing gear structure. In the end, the article brings forward a graphic comparison analysis between the diagrams of the Romanian current standard and the ones conducted in the present study by using FEM (Finite Element Method). Furthermore, a design case study exemplifies the method used to obtain the slab thickness for an airport rigid pavement structure using an external load from a complex landing gear with six footprints tire.
Numerical Simulation and Experimental Investigation on Thixo-Backward Extrusion of 7075 Aluminium Alloy
Authors: Neag Adriana , Favier Véronique , Nistor Liviu , Bigot Régis
Published: June 2013

The thixoextrusion process could become an important technique to extend the complexity of extruded profiles. However, the complex thixotropic flow behavior of semi-solid, during thixoextrusion is still partly characterized. The study described in this paper investigates thixoextrusion for 7075 aluminium alloy at different temperature conditions. A complete die filling and a good surface state of parts was obtained at high solid fraction (fS = 0.70), in heated dies, for an extrusion ram speed of 416 mm/s. The thixoextrusion process is simulated using the finite element code Forge2009©. The constitutive equation used for these simulations is based on a micro-macro model for the semi-solid evolution. The tendency of the experimental curves evolution, preserving the same parameters of the micro-macro constitutive model, for each values of solid fraction, was reproduced, except the last step of the ram displacement.
Web Based Tools for Road Traffic Monitoring and Controlling System
Authors: Avram Camelia , Astilean Adina , Miron Radu Florin
Published: June 2013

The Road Traffic Monitoring and Control System (RTMCS) presented in this paper is intended to offer support for the surveillance, control and monitoring of road networks. It integrates complex components in a modular, flexible and open structure in order to validate models that take into account real time constraints and include tools to simulate various traffic scenarios and communication technologies, WEB based virtual instrumentation, personalized user interfaces and relational data. The system can be used to change the configuration of the road map (to design new streets segments) or to visualize the results of the different traffic scenarios implying the tuning of various parameters. RTMCS also offers several advantages, one of the most important consisting of the possibility to choose different configuration and components using a web browser. An implementation variant, including suitable, promising new technologies, different maps configurations, communication devices and protocols and routing systems is presented and analyzed. A large set of experiments and the corresponding results highlight the functionality of the configurable virtual web instrument concept illustrated by the proposed system. Aspects regarding the possibility of a subsequent integration of new tools are also presented.
Corrosion Resistance Measurements of Amorphous Ni40Ti40Nb20 Bipolar Plate Material for Polymer Electrolyte Membrane Fuel Cells
Authors: Thalmaier György , Vida-Simiti Ioan , Vermesan Horatiu , Codrean Cosmin , Chira Mihail
Published: June 2013

Metallic bipolar plates have the advantages of better manufacturability, higher strength over graphite bipolar plates. The higher strength and toughness of the metallic materials permits the reduction of the width of the bipolar plate so, the volume and mass of the fuel cell can also be reduced. In this paper we are investigating the use of Ni-based amorphous material as a bipolar plate for polymer electrolyte membrane fuel cell (PEMFC). The major requirements of the metallic bipolar plate material are low weight, high corrosion and low contact resistance. The corrosion property of the present alloy has been investigated under conditions that simulate the fuel cell environment. Hydrogen gas and air were bubbled into a 1 N H2SO4solution at 70 °C, throughout the experiment to simulate the respective anodic and cathodic PEMFC environment. The Ni-base amorphous alloys displayed higher corrosion resistance than stainless steel.
Study of Permanent Magnet Synchronous Machine Topologies for Electric Scooter Application
Authors: Fodorean Daniel , Szabo Lorand
Published: June 2013

The paper deals with the study of the motorization for an electric scooter. The motivation of this study is firstly introduced. Next, the application is defined: it is intended to propose a pure electrical traction system for a light electric vehicle, meaning an electric scooter). A short description of the design will introduce the main parameters of the electrical drive system and three topologies of electrical machine will be evaluated. The optimization of the best suited variant will be made based on a gradient type optimization algorithm. Numerical computation, by means of finite element method, will confirm the analytical obtained results, emphasizing the main achievements, performances and drawbacks of the electrical traction system. These performances are evaluated on test bench for validation.
A Geometric Approach to a Battery Electrochemical Model Using Specific Tools from the Poisson Geometry
Authors: Anania Aron Gîrban Anania , Girban Gabriel
Published: June 2013

Through this paper is presented a geometric approach of a battery electrochemical model using specific tools from the Poisson geometry.
Multi-Phase Linear Generator for Electric Vehicle Applications
Authors: Oprea Claudiu , Szabo Lorand , Martis Claudia
Published: June 2013

The oil production peak and the major climatic changes due to global warming determined all the major vehicle manufacturers to focus their attention on new, non-polluting, energy efficient technologies. The electric vehicle seems to be the easiest to implement, the most important drawback being related to the available energy storage capabilities. The Hybrid Electric Vehicle was introduced as an intermediate step, using Internal Combustion Engines to the required electric energy produce on-site. A particular solution is using a Free Piston Engine Linear Electric Generator with several advantages compared to classical solutions. The current paper presents a multi-phase linear generator topology, along with a novel design method and some FEM simulations that validate the design procedure.
Compressed Domain Computationally Efficient Processing Scheme for JPEG Image Filtering
Authors: Florea Camelia , Gordan Mihaela , Orza Bogdan , Vlaicu Aurel
Published: June 2013

Image filtering is one of the principal tools used in computer vision applications. Real systems store and manipulate high resolution images in compressed forms, therefore the implementation of the entire processing chain directly in the compressed domain became essential. This includes almost always linear filtering operations implemented by convolution. Linear image filtering implementation directly on the JPEG images is challenging for several reasons, including the complexity of transposing the pixel level convolution in the compressed domain, which may increase the processing time, despite avoiding the decompression. In this paper we propose a new computationally efficient solution for JPEG image filtering (as a spatial convolution between the input image and a given kernel) directly in the DCT based compressed domain. We propose that the convolution operation to be applied just on the periodical extensions of the DCT basis images, as an off-line processing, obtaining the filtered DCT basis images, which are used in data decompression. While this doesn't solve the near block boundaries filtering artefacts for large convolution kernels, for most practical cases, it provides good quality results at a very low computational complexity. These kind of implementations can run at real-time rates/ speeds and are suitable for developments of applications on digital cameras/ DSP/FPGA.
Combined Clustering Methods for Microarray Data Analysis
Authors: Malutan Raul , Vilda Pedro Gómez , Borda Monica
Published: June 2013

Data classification has an important role in analyzing high dimensional data. In this paper Gene Shaving algorithm was used for a previous supervised classification and once the cluster information was obtained, data was classified again with supervised algorithms like Support Vector Machine (SVM) and k-Nearest Neighbor (k-NN) for an optimal clustering. These algorithms have proven to be useful when the classes of the training data and the attributes of each class are well established. The algorithms were run on several data sets, observing that the quality of the obtained clusters is dependent on the number of clusters specified.
On some Operator Functional Equations in Locally Convex Algebras
Authors: Pater Flavius
Published: June 2013

This paper aims to prove the existence of the solutions of some operator functional equations of sinus type in universally bounded operator algebra, where the operator is defined on a locally convex space. Some results based on the work of B. Sz.-Nagy following the representation model of operator groups are established.
Sparse Features for Finger Detection
Authors: Simion Georgiana
Published: June 2013

The use of hand as direct input device evolved with the development of Natural User Interfaces (NUI). Touch screens are well integrated in our daily life and the new challenge is to implement interfaces which involve no direct contact. This paper presents such a solution implemented within the framework of sparse techniques. The feature vectors representing key distances and angles are extracted and used to detect fingers. The experimental results have demonstrated that this technique is able to obtain an error rate about 5% in finger detection.
Simulation of the Photodetection in the PPS CMOS Sensors
Authors: Toadere Florin , Arsinte Radu
Published: June 2013

The paper contains an analysis and simulation of passive pixel based sensors. The passive pixel CMOS image acquisition sensor (PPS) is the key part of a visible image capture systems. The PPS is a complex circuit composed by an optical part and an electrical part, both analog and digital. The goal of this paper is to simulate the functionality of the photodetection process that happens in the PPS sensor. The photodetector is responsible with the conversion from photons to electrical charges and then into current. In the optical part, the sensor is analyzed by a spectral image processing algorithm which uses as input data: the lenses array transmittance, the red, green and blue filters and the quantum efficiency of the PPS. In the electrical part of simulation, the program is computing the signal to noise ratio of the sensor taking into account the photon shot, white and fixed pattern noises. Our basic analysis is based on camera equation to which we add the noises.
Software Solutions for Harmonic Conditions Monitoring and Optimal Placing of Reactive Power Sources in Distributions Networks
Authors: Baloi Alexandru , Pana Adrian
Published: June 2013

Power factor correction in electrical distribution networks can lead to harmonic risk increase. The paper presents a method to anticipate the amplification of network harmonic conditions based on the equivalent network harmonic impedance which can be monitored using virtual instruments. Based on the values of the harmonic impedance and the required reactive power, a mathematical model is implemented through an algorithm and software classes are developed for the solution regarding the type of the reactive power sources (capacitor banks or filters) and the place where it will be installed.
The Effects of Material Degradation on Sealing Performances of O-Rings
Authors: Zeng Zhi Guo , Chen Yun Xia , Kang Rui
Published: June 2013

O-rings are seal structures widely applied in a variety of mechanical systems. In this paper, the time-dependent performances of O-rings are investigated with the aid of finite element (FEM) analysis. The investigation starts with a discussion on the failure mechanisms of O-ring seals and FEM models are built to establish relations between O-ring failures and the material properties. Since the material properties will degrade with time, we further investigate the influence of the degradation on the sealing performances of O-rings. The results show that the degradation of materials might be one reason for the time-dependent O-ring leakages and can be used to prevent O-rings from field failures.
How many Elements Exist in the World?
Authors: Hu Wen Xiang , Zhao Zhen Xin , Liu Ming
Published: June 2013

In this paper, probable existence of the upper limit of periodic table of elements was discussed through nuclear stability and electronic shell stability . It is of great significance from the view of physic, chemistry and philosophy.
Current Sensing Circuit Applied to Switching Regulator
Authors: Feng Hong Xing
Published: June 2013

A current sensing circuit for current mode switching regulator control circuit is designed, sensing the current through a power switch. Compared with sensing series resistor voltage drop, it reduces the power consumption of a switching regulator, improves efficiency, and sense smaller inductor current. This structure can be used in devices such as mobile phones, tablet PCs power management circuitry.
Study on Stability Experimental of Compound Consolidated Soil
Authors: Xu Jun Chen , Liu Quan Zhong
Published: June 2013

Through water stability experiment of compound consolidated soil, low temperature shrink experiment and the freezing-thawing cycle test of compound consolidated Soil, the water stability, low temperature shrink stability and frozen stability of compound consolidated soil in different mix ratio and instars are analyzed. From the experiments, it can find that the mixed of curing agent can greatly improve the water stability. And with the growth of the specimen instars, the water stability is also improved. The compound consolidated soil is mainly to shrink under the low temperature, and the anti-freezing is better. The compound consolidated soil is entirely suitable for the seasonal frozen regions, and the study in this paper has a certain referential significance for the selection of road base in the seasonal frozen regions in the future.
The Basic Data Establishment for Automobile Panels' Main Stamping Defects Control
Authors: Chen Jing Xin , Zhang Jingxin , Li Hui Long , Zhang Jun Xun
Published: June 2013

Applying the method of group technology, statistical concept and engineering science, Using Automobile panels classification coding method, According to our country the stamping industry current situation, Put forward to build concept on the basic data establishment for Automobile panels main stamping defects control. Introducing the basic data establishment significance, describing the steps of creating, completing a preliminary framework. Providing the basis for automobile panel dies research and production.
Comparative Study on Fuzzy PID Controller and Conventional PID Controller
Authors: Cheng Huan Xin , Zhang Dao Sheng , Cheng Li
Published: June 2013

PID controller is simple, stable and reliable. But the controller parameters cannot adjust themselves when the object varies. To solve the problem, this paper combined fuzzy control and PID controller, realized self-adjustment of PID parameters using fuzzy reasoning method, analysed the advantages over the traditional PID controller. The simulation was researched by Matlab and the results show that fuzzy PID controller has advantages of higher accuracy, faster response and less overshoot.
An Interaction Process Model for Virtual Objects Based on Interaction Structures
Authors: Zhang Jie , Sun Yuan Liang , Xu Zhi Jia , Li Yuan
Published: June 2013

The virtual objects interactions depend on a huge number of human-computer definitions in virtual environment. A natural observation is that associated geometric structures between virtual objects can use to enhance autonomous interaction abilities, which will reduce the time-consuming manual operations. Based on this observation, the paper firstly studied the nature of relationship between interaction structures and interaction behaviors, and proposed a concept Interaction Feature Pair (IFP) to represent the interaction structures. And then an interaction process model for virtual objects based on IFP was proposed, which gives a feasible method for virtual objects to interact autonomously. Finally, an assembly simulation system is developed using this model and an example is given to prove the validity of the model.
Fault Detection and Diagnosis and Fault Tolerance Compensation for Electric Actuator
Authors: Cheng Huan Xin , Yi Fei , Cheng Li
Published: June 2013

In the paperhe faults of loops for the process control system, electric actuators (valves) faults for example,established a historical fault library to diagnose the type of faults.Through system modeling method, a mathematical model analyzed the residuals robustness, which proposed a weighted moving average residuals and adaptive threshold envelope trajectory-based fault detection methods.Finally, the faults were adjusted by the active fault tolerant compensation module reasonably.