Dissertations / Theses on the topic 'Analytic Workbench'
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D'Souza, Arun. "PathCaseMAW: A Workbench for Metabolomic Analysis." Case Western Reserve University School of Graduate Studies / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=case1222895452.
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D'Souza, Arun. "PathCase [superscript] MAW a workbench for metabolomic analysis institution /." online version, 2009. http://rave.ohiolink.edu/etdc/view.cgi?acc%5Fnum=case1222895452.
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Partl, Tomáš. "Využití programu ANSYS Workbench v silnoproudé elektrotechnice." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217897.
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In its first part this Master´s thesis describes creation of electronic database design in Raster Design 2009 program as an effective form of storage only for paper documentation. The second part of my thesis provides calculation of primary and secondary winding of current instrument transformer of over-current conduit through the winding and influence on other parts of transformer i.e. error of transformer or increasing magnetic induction core and others. The last third part is focusing on usage of ANSYS Workbench in power electrical engineering. The thesis shows specific example of warming of current instrument transformer (thermal analysis) and comparing the results with theoretical (calculated) values.
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Kučera, Petr. "Teplotní analýza asynchronního stroje pomocí programu Ansys Workbench." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219756.
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The aim of the master thesis is introduction with software Ansys Workbench and calculate the thermal field arroud the induction machine. After introduction with the software was bulit model of induction machine and there were simulated various thermal calculations at operating conditions. They were measured on a real induction machine in laboratories.
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Sedláčková, Petra. "Využití prostředí ANSYS Workbench pro teplotní výpočty elektrických strojů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218803.
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Thermal analysis of electric machine is one of the key steps in design procedure. Traditionally, thermal calculations are done by analytical method, mostly based on equivalent electrical circuit, where thermal quantities are replaced by equivalent electrical quantities. These methods employ so-called electro thermal analogy. Different approach is to use Finite Element Method, which is the main goal of this thesis. First part of the thesis is devoted to description of CAD system Autodesk Inventor, which is modern parametric CAD for modelling of virtual prototypes. This system is then used for creation of three dimensional model of brushless DC machine. Second part is focused on thermal calculations in Ansys Workbench environment. Model of brushless DC machine created in Inventor is transferred into Ansys Workbench and thermal analysis is carried out.
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Weiler, Bradley. "Finite Element Method Based Analysis and Modeling in Rotordynamics." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1510917784717535.
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Hert, Ronald Sterling. "A Study of One Computer-Driven Text Analysis Package for Collegiate Student Writers." Thesis, University of North Texas, 1988. https://digital.library.unt.edu/ark:/67531/metadc331597/.
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This study examines the effects of the computer-assisted text analysis program, WRITER'S WORKBENCH, on writing performance, levels of writing apprehension, students' writing processes and attitudes about using the computer and WORKBENCH for writing. A sample of 275 subjects enrolled in freshman composition were divided into an experimental group (N = 200) who used WORKBENCH in a mandatory computer lab component in addition to their composition course and a control group (N = 75) who received only the course, itself. Because random selection of participants was not possible, a Nonequivalent Control Group design was utilized. Holistic scoring of pre and posttest essays revealed a significant improvement in writing among both groups as a result of the treatments, but there was no significant difference in writing gains between the group using WORKBENCH and the group who did not (p = .942) . Similarly, though both groups demonstrated a small decrease in writing apprehension after instruction, there was no significant difference in the degree of decrease between the two groups (p = .201). Also, the data did not support a relationship between writing performance and apprehension. A 40 item questionnaire was given to the experimental group to determine: 1) attitudes about writing with a computer, 2) how students use WORKBENCH, and 3) students' attitudes about WORKBENCH. Some highlights of these findings are that narrow majorities enjoyed and were comfortable using the computer and WORKBENCH, but substantial minorities dissented or were uncertain. While 60% felt happier with their essays after using WORKBENCH and preferred using a computer to write, 89% of students felt word processing represented the greatest advantage and SPELL was the next most popular feature. Personal interviews conducted with 13 of the most and least apprehensive WORKBENCH users revealed that some students ignored the WORKBENCH analyses, and highly apprehensive students experienced more frustration with the computer, employed different writing processes, used WORKBENCH less often and less skillfully, and expressed more dissatisfaction with the computer.
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Pánis, Vladimír. "Deformačně-napěťová analýza páteřního segmentu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228374.
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Presented work deals with the strain-stress analysis of a spinal segment while monitoring the influence of total disk replacement Maverick on the global behaviour of the spinal segment. It also assesses the influence of this implant on the nearest upper intervertebral disk. On the basis of CT images was in the program Rhinoceros created the geometry model of spinal segment Th12-L2. The geometry model of implant was applied between vertebra L1 and L2 instead of intervertebral disk from which the whole core was removed, while in the immediate surrounding of implant the part of disk was left, which is important from the view of stability. Subsequently were in the program Ansys Workbench created finite element models for two states: - healthy (unbroken) status - status with applied implant Then the calculations for movements were realized: lateral flexion, flexion, extension, rotation. For the same movements were realized calculations of the model simulated spinal fusion of the vertebras L1-L2. Finally an influence both of methods (total disk replacement, spinal fusion) on the intervertebral disk Th12-L1 was compared.
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Gonzalez, Campos David Jonathan. "A Study of Shock Analysis Using the Finite Element Method Verified with Euler-Bernoulli Beam Theory; Mechanical Effects Due to Pulse Width Variation of Shock Inputs; and Evaluation of Shock Response of a Mixed Flow Fan." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1294.
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A Study Of Shock Analysis Using The Finite Element Method Verified With Euler-Bernoulli Beam Theory; Mechanical Effects Due To Pulse Width Variation Of Shock Inputs; And Evaluation Of Shock Response Of A Mixed Flow Fan
David Jonathan González Campos
For many engineers that use finite element analysis or FEA, it is very important to know how to properly model and obtain accurate solutions for complicated loading conditions such as shock loading. Transient acceleration loads, such as shocks, are not as common as static loads. Analyzing these types of problems is less understood, which is the basis for this study. FEA solutions are verified using classical theory, as well as experimental results. The complex loading combination of shock and high speed rotation is also studied. Ansys and its graphic user interface, Workbench Version 14.5, are the programs used to solve these types of problems. Classical theory and Matlab codes, as well as experimental results, are used to verify finite element solutions for a simple structure, such as a cantilevered beam. The discrepancy of these FEA results is found to be 2.3%. The Full Method and the Mode Superposition Method in Ansys are found to be great solution tools for shock loading conditions, including complex acceleration and force conditions. The Full Method requires less pre-processing but solutions could take days, as opposed to hours, to complete in comparison with the Mode Superposition Method, depending on the 3D Model. The Mode Superposition Method requires more time and input by the user but solves relatively quickly. Furthermore, a new representation of critical pulse width of the shock inputs is presented. Experimental and finite element analyses of a complete mixed flow fan undergoing ballistic shock is also completed; deformation results due to shock loading, combined with rotation and aerodynamic loading, account for 32.3% of the total deformation seen from experimental testing. Solution methods incorporated in Ansys, and validation of FEA results using theory, have great potential implications as powerful tools for engineering students and practicing engineers.
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Mánek, Petr. "Analýza drážního soustrojí motor - generator." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219755.
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This work is focused on using of modal analysis in power electrical engineering. The first part of the work explains the term of CAD systems and provides their basic classification. The next section of this thesis describes procedure for creating models in Autodesk Inventor 2012. There is shown creation sketching, 3D components, assemblies and possibility of presenting the models. Next part of this thesis describes the finite element method and the program ANSYS Workbench. In the next part of this thesis is shown sample of calculation of modal analysis in the program ANSYS Workbench. There is a description of modal analysis, synchronous machines, the process of calculating of modal analysis and evaluation of the results. The last section of this thesis describes creation of animation of the railway generator set in the program Inventor Studio.
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Mičola, Ivo. "Návrh řadicího mechanismu bezprodlevové převodovky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231420.
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This thesis deals with no delay gear shifting. The first part is devoted to theoretical introduction. The next part describes comprehensive approach to vehicle dynamics, the choice of gear ratios, the use of reverse engineering to model the interior of the gear housing and the actual structural design of the internal components and strength analysis. Moreover, this work should fill the gap in the available literature which is publicly accessible.
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Maddela, Naveen. "Finite Element Analysis of Railway Track Wooden Sleeper." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
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Railway sleepers have important roles within the complex railroad. Dynamic interaction among Rail, sleeper and ballast supports are vital for the construction of dynamic model track capable of predicting its responses to impact loads due to wheel flats, wheel burns, irregularities of the rail. Railway track deteriorates over time due to the dynamic loading of passing wheeled vehicle. to ensure the secure passing of trains, the track must well design and managed.The objective of this thesis is to determine the stress in wooden rail sleeper by the considering Ballast, Sub ballast, and soil with the help of well-known FEM Tool Ansys Workbench. Material models for wooden sleeper and subgrade are anisotropic elasticity and elasto plastic (Drucker Prager), respectively. To validate FEM results with analytical Zimmermann method, perform the 2D linear static analysis and 3D nonlinear static analysis. The numerical analysis results in Ansys Work bench are presented and discussed the model validation with analytical results. Even though simulation converged it does not mean this model could give results similar to reality. But in my opinion these results are not sufficient to study the behavior of wooden sleeper because limitations in soil mechanics (Soil Models in Ansys Workbench).
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Horálek, Lukáš. "Výpočet chlazení asynchronního stroje pomocí programu Ansys CFX." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-318176.
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The issue this master’s thesis discusses the cooling synchronous machines. Specifically, the calculation of cooling induction motor using the finite volume method. Using Autodesk Inventor will create a 3D model of a real electric machine, ie asynchronous motor and then ANSYS WORKBENCH perform system analysis CFX, based on the finite volume method. Furthermore, we realize the air speed measurements on a particular machine and the individual results obtained by measuring and calculating the actual compared with each other. The master’s thesis also deals marginally with closely related to it. For the same machine model, we apply the calculation of the temperature fields using the finite volume method and them perform a thermal analysis. Next, we can carry out the measurement of the temperature on the motor itself and calculate the measured values and the measured compare each other.
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Bartoň, Petr. "Teplotní analýza synchronního stroje." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219921.
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The master’s thesis deals with analysis of warming and cooling of synchronous machine. The warming is caused by the machine’s losses resulting from the conversion of electrical energy into mechanical energy. There then can be achieved high values of temperature on the machine, which can lead to destruction of the machine. The transient thermal analysis, working on the finite element program Ansys Workbench, is used for thermal analysis. As an appropriate instrument, which serves for flow calculation, a module CFX in the program Ansys Workbench may be used. In the practical part the model for unhampered alternator with current in the field winding only was measured and after that, the measured values were compared with the results of transient thermal analysis. Speed and progress of air flow through machine were analyzed with CFX module.
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Karásek, Ladislav. "Návrh vysokootáčkového motoru 350kW 40 000min-1." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242110.
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This thesis deals with the problem of the high-speed electrical machines. In the introduction summary of the high-speed machines are discussed. Induction machine with squirrel cage winding and solid rotor is chosen as suitable solution for given requirements. The multiple types of designs of the induction machines with solid rotor and problematic areas are discussed. Main part of this thesis is an electromagnetic design of the machine with respect to mechanical stress. The designed machine is analyzed with the use of finite element method in ANSYS Mechanical and Maxwell software.
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Pulava, Oleksandr. "Šestiválcový vznětový motor pro užitková vozidla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378397.
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The aim of this diploma is to design a crankshaft for a six-cylinder commercial vehicle, which is one of the unified motors. The main parts are the design of the crankshaft configuration, the crankshaft balancing method for forces and moments, the crankshaft design documentation, and the crankshaft strength verification. The design of torsional vibration damping characteristics is also made and its effect on torsional vibration and crankshaft strength is determined.
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Dobiáš, Pavel. "Působení sekundárních elektrických přístrojů na oteplení skříně rozváděče." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242137.
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This master's thesis deals with the temperature-rise of selected parts of the low-voltage switchgear. The theoretical part describes the physical principles and the basic mechanisms of heat transfer. The next part describes the possible effect of elevated temperature on the device inside the switchgear. The master's thesis is awarded by ABB Ltd., so another part is dedicated to MNS switchgear. The following part describes the permitted limit of temperature-rise of switchgear in accordance with IEC 61439-1. In the practical part is a calculation temperature-rise of selected part of switchgear based on IEC 60890. Model in SOLIDWORKS Flow Simulation was created for the same part of the switchgear and thermal analysis was performed. The values of allowable temperature rise of individual parts are compared with the results obtained by calculations and simulations. In the last part is verified the possibility of calculating the temperature-rise in the EPLAN software.
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Dias, Aleš. "Jeřáb radiální portálový." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254381.
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The aim of my thesis is a conceptual design radial gantry crane including the important strength calculations according to the standards and examinations by means of ANSYS Workbench. The lifting capacity is 1500 kg, the length of the boom is 12 000 mm and the height of lifting is 3600mm. The crane is designed as fully revolving and the angle turning is 360°. The work also includes the selection of a suitable lifting gear from the manufacturer´s catalogue including the accessories casters, all important components and also FEM construction analysis.
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Poduška, Libor. "Návrh konstrukčního řešení autoklávu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241853.
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Master thesis deals with general basic design od autoclaves. It deals with the design of an optimal design solution autoclave to set parameters with the design requirement of hermetic doors for loading the workpiece. This solution is analyzed regard to stable pressure vessels. The whole design is processed in parametric SolidWorks software with which they are executed and initial stress analysis of individual designs. Final strength FEM analysis is performed using Ansys. Some proposals are technical-economic evaluation.
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Bzduch, Pavel. "Využití počítačové grafiky v silnoproudé elektrotechnice." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217593.
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The aim of this work is to describe news in Autodesk Inventor Professional 2008. In second part of the work there are described the possibilities of technical drawing in Autodesk Inventor. In third part there is mentioned basic information about ANSYS Workbench. There is thermal simulation of asynchronous motor too.
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Bártů, Jan. "Analýza mechanického namáhání při zkratu ve vzduchem izolovaném rozváděči vn." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-317035.
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This Master thesis is based on problems of force effects of the magnetic field of short-circuit current. Firstly, I analysed the force action of the three phase busbars during the three-pole short circuit. The analysis was performed in the Ansys Maxwell program and I verified the correctness of the analysis by numerical calculation. The second practical part was executed for ABB company. The main task was to analyse the force effects of the short-circuit current in the HV switchgear with focusing on the arms and contact system of the circuit breaker. The simulations of the following configurations were performed in more details: three configurations of the simplified VD4 circuit breaker, two types of VD4 circuit-breaker contact systems and a linear circuit breaker configuration model. The objective was to calculate the forces acting on the current path of the arms and contact system of the VD4 circuit breaker during the three-phase short-circuit and to simulate the effects of forces on these current parts. For modelling of individual assemblies, calculations and simulations I used: SolidWorks 2014, Ansys Maxwell 16.0 and Ansys Workbench 14.5 programs. With SolidWorks 2014 3D CAD software were modelled simplified assemblies of circuit breakers and contact systems. These systems were imported into the Ansys Maxwell software, where the force effects of the magnetic field of the short-circuit current were calculated. In Ansys Workbench programme was simulated the effect of forces on the current circuit breakers. Moreover, the final deformations of the materials (with respect to the mechanical properties of the structure) were plotted. The analysis of force effects of the magnetic field was performed for the specified static short - circuit current value.
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Chun-YuChang and 張群郁. "Analysis of 3D Member Structures by Software ANSYS WORKBENCH." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/86190500147217013424.
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碩士國立成功大學
土木工程學系碩博士班
100
In recent years, building design and construction technology have been developed to enhance the strength and safety of the structures, including steel structures which are widely used in public works. Three dimensional truss-like steel frame which behaves with very high strength and stiffness is widely used. Although it is already clear knowledge as structures vibrate in elastic stage, it will become much more complicated when it vibrate beyond elastic limit and the material goes into yielding stage. The structures behaves nonlinearly. In order to investigate the dynamic behavior of the three dimensional truss-like steel frame, computer-aided engineering analysis software package ANSYS Workbench is used here in. Dynamic behaviors of the mentioned structure, such as stress, deflections, ultimate loads, and failure modes…etc. are detected in detail. It is expected to help engineers to face the design work in the future.
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Joshi, Riddhi. "Design and Fatigue Analysis of an LWD Drill Tool." Thesis, 2019. http://hdl.handle.net/1805/19984.
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Indiana University-Purdue University Indianapolis (IUPUI)Previous works suggest that 80% to 90% of failures observed in the rotary machines are accounted for fatigue failure. And it is observed that cyclic stresses are more critical than steady stresses when the failure occurred is due to fatigue. One of the most expensive industries involving rotary machines is the Oil and Gas industry. The large drilling tools are used for oil extracts on-shore and off-shore. There are several forces that act on a drilling tool while operating below the earth's surface. Those forces are namely pressure, bending moment and torque. The tool is designed from the baseline model of the former tool in Solidworks and Design Molder. Here load acting due to pressure and torque accounts for steady stress i.e., Mean Stress and loading acting due to bending moment account for fluctuating stress i.e., Alternating Stress. The loading and boundary conditions have been adapted from Halliburton’s previous works for the LWD drill tool to better estimate the size of the largest possible transducer. The fatigue analysis of static load cases is carried out in Ansys Mechanical Workbench 19.0 using static structural analysis. The simulation is run to obtain results for total deformation, equivalent stress, and user-defined results. The component is designed for infinite life to calculate the endurance limit. Shigley guidelines and FKM guidelines are compared as a part of a study to select the best possible approach in the current application. The width of the imaging pocket is varied from 1.25 inches to 2.0 inches to accommodate the largest possible transducer without compromising the structural integrity of the tool. The optimum design is chosen based on the stress life theory criteria namely Gerber theory and Goodman Theory.
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Yen-BorFang and 方彥博. "Analysis on the Effet of the Noise Factors on the Fatique Reliability Optimization of RCP with PoP Package by a Modified G/L Concept of Optimal Equivalent Solder in ANSYS Workbench." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/96476736880422542525.
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Tavares, João André Curralo. "Simulação numérica do comportamento ao impacto de estruturas utilizadas em segurança rodoviária." Master's thesis, 2012. http://hdl.handle.net/1822/22686.
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Dissertação de mestrado integrado em Engenharia MecânicaEsta dissertação de mestrado aborda a temática das barreiras de segurança rodoviária, com especial foco na viga central (rail) que as compõe. É apresentado um estado da arte composto por diversas informações relativas à composição base destes sistemas de segurança, bem como alguns estudos efetuados na área com recurso a softwares de análise. Com o intuito de estudar o comportamento plástico da viga, foi utilizado o programa Ansys Workbench na sua componente de estudos estruturais estáticos. De forma a validar a utilização deste programa, procedeu-se a um ensaio experimental a dois rails nas instalações da Universidade do Minho, ensaio esse posteriormente simulado em Workbench, com dados obtidos de ensaios de tração de provetes retirados de um terceiro rail. As informações recolhidas dos ensaios de tração possibilitaram delinear o perfil do material utilizado para o fabrico viga, e posterior tratamento da sua curva tensãoextensão. Na fase final da dissertação o Ansys Workbench é utilizado para o estudo das implicações da alteração do expoente de encruamento do material na deformação plástica da viga.
This master degree dissertation addresses the theme of safety road barriers, with special emphasis on the central beam of the system. The state of the art is presented with several information regarding the basic composition of these safety systems, as well as some studies in the area where simulation software has been used. To study the plastic behavior of the beam, Ansys Workbench was used in its static structural studies component. In order to validate the use of this software, an experimental test was conducted in the University of Minho installations. This test was then simulated in Workbench, coupled with data retrieved from several tensile tests done to specimens retrieved from a third rail. The data collected from the tensile tests led to the properties profile of the material used during the manufacturing of the beam, stress-strain curve included. In the final section of this dissertation, Ansys Workbench is used to study what implications the change in the work hardening exponent has on the plastic deformation of the beam.
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Carvalho, Cristiano Daniel Ferreira. "Simulação numérica e verificação experimental do comportamento elástoplástico de espumas metálicas." Master's thesis, 2012. http://hdl.handle.net/1822/22706.
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Dissertação de mestrado integrado em Engenharia MecânicaEsta dissertação de mestrado analisa o comportamento elásto-plástico de espumas metálicas à compressão, através do estudo numérico e da verificação experimental. No estado da arte são apresentados vários processos de fabrico de espumas metálicas, são apresentadas algumas propriedades mecânicas e físicas das espumas metálicas e alguns estudos numéricos realizados a espumas deste tipo. Foram realizados ensaios experimentais de tração a provetes com o mesmo material utilizado nas espumas, que possibilita delinear o perfil deste material através de uma curva tensão-extensão. Ensaiou-se, experimentalmente, os dois tipos de espumas metálicas utilizadas no estudo, com e sem parede, permitindo uma análise comparativa entre os resultados obtidos numericamente e os obtidos experimentalmente. Para determinar o comportamento mecânico das espumas metálicas numericamente, foi utilizado o software de elementos finitos Ansys Workbench, na opção de estudos estruturais estáticos, permitindo definir a curva carga-deslocamento para cada espuma, analisar a rigidez e energia de deformação de cada espuma e comparar estes parâmetros com os obtidos nos ensaios experimentais. Finalmente, é realizado, também, uma análise comparativa, para um tipo de espuma em estudo, entre dois programas: Ansys Workbench e CosmosWorks.
This Master Thesis analysis the elastic-plastic behavior of metal foams in compression threw the numerical study and experimental validation. In the state of the art, it’s presented several manufacturing processes of metal foams, their mechanical and physical properties and some numerical studies made to them. Experimental traction tests were made to specimens manufactured in the same material used in the metallic foams with the intention of defining a tension-extension curve. It was tested the two types of metal foams used in the study, with and without wall, permitting a comparative analyses between the results obtained numerically and experimentally. To determine the mechanical behavior of the foams in the numerical analysis, it was used the finite elements software Ansys Workbench, using the “Static Structural” option. This permitted to define the load-displacement curve to each, to analyze the rigidity and energy of deformation of foams and compare these parameters with those obtained from experimental tests. Finally, it is also performed a comparative analysis for a foam type under consideration, between two programs: Ansys Workbench and CosmosWorks.
Fundação para a Ciência e a Tecnologia (FCT) - Projeto PTDC/EME-PME/115668/2009