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1
Larsson, Mats. "Development of a Digital Universal Filter Bank." Thesis, Uppsala universitet, Signaler och System, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-307929.
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This is a master's thesis project, which is a part of the Master Programme in Electrical Engineering at Uppsala university. When developing a product or performing measurements, it is sometimes necessary to remove some content of a signal. This might be due to an interfering source that has to be filtered out, or that only a specific frequency interval is of interest. In such a case, it would be practical if a universal frequency selective filter was available and easy to use. In this thesis, a platform for implementing different frequency selective digital filters is developed. Through a user interface, parameters such as sampling frequency, filter order, type of filter and cutoff frequencies are set by the user. This provides a platform which is easy to configure in order to run one or multiple IIR or FIR filters in various constellations. By combining different filters, a wide variety of frequency responses can be obtained. A prototype is constructed, which allows the user to connect up to two input signals and retrieve up to two output signals. The filter bank is programmed in C and implemented in a 32-bit microcontroller, base on the ARM architecture. To get a reliable prototype, a printed circuit board is designed and manufactured. To protect the electronics from external stress, a cover is designed and 3D-printed. The filter design algorithms and the algorithm used when running the filter bank gives satisfying results. The capacity of the filter bank can be increased by refining the filtering algorithm. By improving the hardware, noise generated by the electronics can be decreased. The filter bank has a really good potential to become a very useful tool.
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Shadrin, Aleksandr. "Analogové pole pro realizaci programovatelného filtru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-221026.
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The state-variable analog filter topologies are described. Using the transfer function theory and operational configurations suitable for integration and derivation, a new universal filter topology are proposed. The circuit has been implemented in CMOS technology by using six operational amplifiers, eight analog switches and five programming resistor array. Tunable corner frequencies, quality factors and gain are realized. Using the serial peripheral interface or digital memory can be realized this real-time digitally programmable first- and second-order analog filter with the tunable parameters.
3
Ju, Ziyang [Verfasser]. "A Filter Bank Based Reconfigurable Receiver Architecture for Universal Wireless Communications / Ziyang Ju." Kassel : Kassel University Press, 2010. http://d-nb.info/1016850379/34.
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Salášek, Jan. "Analogové funkční bloky fraktálního řádu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-241141.
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Thesis describes the design of the blocks of fractional-order filters approximation using a filter of higher order integer. Active filters of third-order are use to create filter of 1+alfa -order, where alfa is between zero to one. One of the filters is practically implemented and measured.
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Novotný, Matouš. "Filtry vyšších řádů s proudovými zrcadly." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218224.
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Submitted work engages in suggestion of frequency-selection filters with usage of more active elements of the MCMI (Multi-Output Current Mirror and inverter). The preamble of thesis is applied to theory of frequency-selection filters and possible usage of them. The projected circuit layouts with the active elements are discussed in terms of the impact of parasitic properties of the real models. The part of thesis is numerical suggestion of found solutions, their simulation in suitable program.
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Minarčík, Martin. "Návrh koncepce napěťového konvejoru a jeho aplikační možnosti." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-233471.
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This doctoral thesis deals with a voltage conveyor as a new active element for an analog signal processing. Various types of the voltage conveyors have been defined as a dual active elements to current conveyors based on a duality principle. Conception of a new active element that can supply all types of the voltage conveyors have been proposed. The active element has been named an universal voltage conveyor – UVC. A voltage follower is a basic building block of the UVC. The well-known circuit realization of the voltage follower comes from four transconductance amplifiers with key parameters (voltage transfer and output resistance) derived from relative accuracy of used transconductance amplifiers has been used by UVC fabrication. A new circuit realization of the voltage follower comes from three transconductance amplifiers with key parameters also derived from relative accuracy of used transconductance amplifiers has been designed. Further the doctoral thesis deals with a frequency filter with the voltage conveyors design using signal flow graphs. Various graphs of the voltage conveyors comes from the various circuit analysis methods with non-regular active elements have been created. A basic graph of the voltage conveyor has been designed with help of a known controlled sources graphs. This graph have been used to design of multifunctional frequency filters, filters with high input and low output impedance and controlled frequency filters. A design procedure have been created so that in specific step of the frequency filter design the basic graph of the voltage conveyor could be extended to graph of any type of the voltage conveyor. Thereby a practical usage of various types of the voltage conveyors has been finding out. Further a new method of frequency filter design based on expanding of the signal flow has beenproposed.
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Fröhlich, Lubomír. "Aktivní kmitočtové filtry pro vyšší frekvence." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-233616.
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This thesis deals with the synthesis and optimization of frequency analogue filters with modern active elements usable for higher frequencies. The thesis is divided into three parts, the first part deals with the problematic concerning Leap-Frog combined ARC structure. Due to a difficult design, this method is not described in a detail and used in practice, although it shows e.g. low sensitivity. Firstly, a complete analysis of individual filters was made (for and T endings) and consequently these findings were used during implementation of this method to NAF program. Finally, samples of real filters were realized (for verification of functioning and correct design). Another very interesting topic concerning filters is usage of coupled band-pass for small bandwidth, where it is necessary to solve the problems concerning ratio of building elements values, but also price, quality, size of coils, sensitivity, Q factors, coefficients etc. That is why in practice a coil is very often substituted with other equivalent lossy and lossless blocks which create ARC filters structure. The design and the possibility of usage of lossy grounded elements were described here (such as synthetic inductors, frequency dependent negative resistor). Some parts of the design are individual computer sensitivity analysis, setting of usage and quality comparison of individual lossy grounded blocks. Besides, a program for these elements was created, it is useful for a quick design and depiction of transfer characteristics. The third part deals with the usage of tuning universal filters consisting three or more operational amplifiers, which secures its universality and possibility to create different kinds of transfer characteristic. In practice, Akerberg - Mossberg and Kerwin - Huelsman - Newcomb are the most used types of filters. These were also compared with less common universal filters. In the end, the possibility of digital tuning of universal filter with the help of digital potentiometers for filters of 10th order and frequency around 1 MHz was shown.
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Jeřábek, Jan. "Kmitočtové filtry s proudovými aktivními prvky." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-233528.
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This doctoral thesis is focused mainly on research of new current active elements and their applications in frequency filters suitable for current-mode. Work is focused on design of new filtering structures suitable for traditional single-ended signal processing and also on structures suitable for fully-differential applications. The thesis contains three designed general conceptions of KHN-type second-order filters. Adjustability of quality factor and pole frequency is provided by controllable current amplifiers that are placed properly in designed structures. Structures also contain second-generation current conveyors, multiple-output current followers, transconductance amplifiers and their fully-differential equivalents. There are lot of possible solutions that could be obtained from general structures, some of them are presented in the work. The thesis also presents several multifunctional and also single-purpose filtering structures of second-order and two variants of n-th order synthetic elements which are suitable to realize higher order filters both in single ended and fully differential type. In each case, functionality of new solutions is verified by simulations and in several cases also by real measurement.
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Shaktour, Mahmoud. "Nekonvenční obvodové prvky pro návrh příčkových filtrů." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-233531.
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Kmitočtové filtry jsou lineární elektrické obvody, které jsou využívány v různých oblastech elektroniky. Současně tvoří základní stavební bloky pro analogové zpracování signálů. V poslední dekádě bylo zavedeno množství aktivních stavebních bloků pro analogové zpracování signálů. Stále však existuje potřeba vývoje nových aktivních součástek, které by poskytovaly nové možnosti a lepší parametry. V práci jsou diskutovány různé aspekty obvodů pracujících v napěťovém, proudovém a smíšném módu. Práce reaguje na dnešní potřebu nízkovýkonových a nízkonapěťových aplikací pro přenosné přístroje a mobilní komunikační systémy a na problémy jejich návrhu. Potřeba těchto výkonných nízkonapěťových zařízení je výzvou návrhářů k hledání nových obvodových topologií a nových nízkonapěťových technik. V práci je popsána řada aktivních prvků, jako například operační transkonduktanční zesilovač (OTA), proudový konvejor II. generace (CCII) a CDTA (Current Differencing Transconductance Amplifier). Dále jsou navrženy nové prvky, jako jsou VDTA (Voltage Differencing Transconductance Amplifier) a VDVTA (Voltage Differencing Voltage Transconductance Amplifier). Všechny tyto prvky byly rovněž implementovány pomocí "bulk-driven" techniky CMOS s cílem realizace nízkonapěťových aplikací. Tato práce je rovněž zaměřena na náhrady klasických induktorů syntetickými induktory v pasivních LC příčkových filtrech. Tyto náhrady pak mohou vést k syntéze aktivních filtrů se zajímavými vlastnostmi.
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Žůrek, Radomil. "Využití grafů signálových toků k návrhu diferenčních filtrů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218355.
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The dissertation deals with the design of fully differential frequency filters using the signal flow graphs. It presents the procedures for designing frequency filters, focusing on the active elements such as multiple-output current followers (MO-CF) and digitally adjustable current amplifiers (DACA), which work in a current mode. It is theoretically discussed the issue of designing the M-C graphs, which are the graphic analogy of voltage and current incidence matrices. There are also presented three designs of 2nd order frequency filter circuits using the indirect method of design by M-C graphs and one circuit design using the direct method. The results of each simulation and measurement are presented in a module frequency characteristics. Finally, there is a summary of M-C graphs characteristics and applicability.
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Stejný, Jiří. "Návrh řiditelných kmitočtových filtrů s moderními proudovými prvky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218116.
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This master´s thesis deals an active elements called digitally controlled current amplifier, multiple-output current follower and its usage in tunable frequency filters. These tunable frequency filters operate in a pure current mode. In the first part of this work are presented the different types of current active elements. Universal current conveyor, multiple-output current follower, digitally controlled current amplifier (UCC, MO-CF, DCCA). In the second part of this work are introduced particular methods of design tunable frequency filters. Special attention is given to using the design method of via autonomous circuits because it is one of the most. In the last part of this thesis are designed and computer-simulated individual multifunction tunable frequency filters with those already active yet elements. These filters were designed via autonomous circuits or modification of existing circuits. The functionality of the proposed filtres have been verified by computer simulation. Snap3 program was used for the symbolic analyse of circuit and OrCad PSpice program was used to simulate the characteristics of multifunction filters.
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Khatib, Nabhan. "Obvody pro analogové zpracování signálů na bázi nekonvenčních aktivních prvků." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-233586.
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Disertační práce se zabývá zaváděním nových struktur moderních aktivních prvků pracujících v napěťovém, proudovém a smíšeném režimu. Funkčnost a chování těchto prvků byly ověřeny prostřednictvím SPICE simulací. V této práci je zahrnuta řada simulací, které dokazují přesnost a dobré vlastnosti těchto prvků, přičemž velký důraz byl kladen na to, aby tyto prvky byly schopny pracovat při nízkém napájecím napětí, jelikož poptávka po přenosných elektronických zařízeních a implantabilních zdravotnických přístrojích stále roste. Tyto přístroje jsou napájeny bateriemi a k tomu, aby byla prodloužena jejich životnost, trend navrhování analogových obvodů směřuje k stále většímu snižování spotřeby a napájecího napětí. Hlavním přínosem této práce je návrh nových CMOS struktur: CCII (Current Conveyor Second Generation) na základě BD (Bulk Driven), FG (Floating Gate) a QFG (Quasi Floating Gate); DVCC (Differential Voltage Current Conveyor) na základě FG, transkonduktor na základě nové techniky BD_QFG (Bulk Driven_Quasi Floating Gate), CCCDBA (Current Controlled Current Differencing Buffered Amplifier) na základě GD (Gate Driven), VDBA (Voltage Differencing Buffered Amplifier) na základě GD a DBeTA (Differential_Input Buffered and External Transconductance Amplifier) na základě BD. Dále je uvedeno několik zajímavých aplikací užívajících výše jmenované prvky. Získané výsledky simulací odpovídají teoretickým předpokladům.
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Pánek, David. "Syntéza diferenčních filtračních struktur se složenými aktivními prvky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399604.
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This document is focused on already existing single-ended frequency filters with modern active components working in current mode and their modification into fully-differential ended form. After the modification both versions were compared between each other. The first part informs about problems concerning analogue frequency filters. The second part deals with used active components - MO-CF (Multiple Output Current Follower), BOTA (Balanced transconductance amplifier), UCC (universal current conveyor), VDTA (Voltage differencing transconductance amplifier), CDTA (Current differencing transconductance amplifier) and VDCC (voltage differencing current conveyor). Four circuits have been chosen and transformed into their differential form. Two circuits have been chosen and realised into PCB and then practicaly measured in a laboratory. The last part is a summary of simulations and measured results and check of circuits behavior result.
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Herencsár, Norbert. "Nové aktivní funkční bloky a jejich aplikace v kmitočtových filtrech a kvadraturních oscilátorech." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-233510.
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Kmitočtové filtry a sinusoidní oscilátory jsou lineární elektronické obvody, které jsou používány v široké oblasti elektroniky a jsou základními stavebními bloky v analogovém zpracování signálu. V poslední dekádě pro tento účel bylo prezentováno velké množství stavebních funkčních bloků. V letech 2000 a 2006 na Ústavu telekomunikací, VUT v Brně byly definovány univerzální proudový konvejor (UCC) a univerzální napět'ový konvejor (UVC) a vyrobeny ve spolupráci s firmou AMI Semiconductor Czech, Ltd. Ovšem, stále existuje požadavek na vývoj nových aktivních prvků, které nabízejí nové výhody. Hlavní přínos práce proto spočívá v definici dalších původních aktivních stavebních bloků jako jsou differential-input buffered and transconductance amplifier (DBTA), current follower transconductance amplifier (CFTA), z-copy current-controlled current inverting transconductance amplifier (ZC-CCCITA), generalized current follower differential input transconductance amplifier (GCFDITA), voltage gain-controlled modified current-feedback operational amplifier (VGC-MCFOA), a minus-type current-controlled third-generation voltage conveyor (CC-VCIII-). Pomocí navržených aktivních stavebních bloků byly prezentovány původní zapojení fázovacích článků prvního řádu, univerzální filtry druhého řádu, ekvivalenty obvodu typu KHN, inverzní filtry, aktivní simulátory uzemněného induktoru a kvadraturní sinusoidní oscilátory pracující v proudovém, napět'ovém a smíšeném módu. Chování navržených obvodů byla ověřena simulací v prostředí SPICE a ve vybraných případech experimentálním měřením.
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Goyal, Sachin. "Power network in the loop : subsystem testing using a switching amplifier." Queensland University of Technology, 2009. http://eprints.qut.edu.au/26521/.
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“Hardware in the Loop” (HIL) testing is widely used in the automotive industry. The sophisticated electronic control units used for vehicle control are usually tested and evaluated using HIL-simulations. The HIL increases the degree of realistic testing of any system. Moreover, it helps in designing the structure and control of the system under test so that it works effectively in the situations that will be encountered in the system. Due to the size and the complexity of interaction within a power network, most research is based on pure simulation. To validate the performance of physical generator or protection system, most testing is constrained to very simple power network. This research, however, examines a method to test power system hardware within a complex virtual environment using the concept of the HIL. The HIL testing for electronic control units and power systems protection device can be easily performed at signal level. But performance of power systems equipments, such as distributed generation systems can not be evaluated at signal level using HIL testing. The HIL testing for power systems equipments is termed here as ‘Power Network in the Loop’ (PNIL). PNIL testing can only be performed at power level and requires a power amplifier that can amplify the simulation signal to the power level. A power network is divided in two parts. One part represents the Power Network Under Test (PNUT) and the other part represents the rest of the complex network. The complex network is simulated in real time simulator (RTS) while the PNUT is connected to the Voltage Source Converter (VSC) based power amplifier. Two way interaction between the simulator and amplifier is performed using analog to digital (A/D) and digital to analog (D/A) converters. The power amplifier amplifies the current or voltage signal of simulator to the power level and establishes the power level interaction between RTS and PNUT. In the first part of this thesis, design and control of a VSC based power amplifier that can amplify a broadband voltage signal is presented. A new Hybrid Discontinuous Control method is proposed for the amplifier. This amplifier can be used for several power systems applications. In the first part of the thesis, use of this amplifier in DSTATCOM and UPS applications are presented. In the later part of this thesis the solution of network in the loop testing with the help of this amplifier is reported. The experimental setup for PNIL testing is built in the laboratory of Queensland University of Technology and the feasibility of PNIL testing has been evaluated using the experimental studies. In the last section of this thesis a universal load with power regenerative capability is designed. This universal load is used to test the DG system using PNIL concepts. This thesis is composed of published/submitted papers that form the chapters in this dissertation. Each paper has been published or submitted during the period of candidature. Chapter 1 integrates all the papers to provide a coherent view of wide bandwidth switching amplifier and its used in different power systems applications specially for the solution of power systems testing using PNIL.
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Morilla, Cabello David. "Vision Based Control for Industrial Robots : Research and implementation." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-17583.
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The automation revolution already helps in many tasks that are now performed by robots. Increases in the complexity of problems regarding robot manipulators require new approaches or alternatives in order to solve them. This project comprises a research in different available software for implementing easy and fast visual servoing tasks controlling a robot manipulator. It focuses on out-of-the-box solutions. Then, the tools found are applied to implement a solution for controlling an arm from Universal Robots. The task is to follow a moving object on a plane with the robot manipulator. The research compares the most popular software, the state-of-the-art alternatives, especially in computer vision and also robot control. The implementation aims to be a proof of concept of a system divided by each functionality (computer vision, path generation and robot control) in order to allow software modularity and exchangeability. The results show various options for each system to take into consideration. The implementation is successfully completed, showing the efficiency of the alternatives examined. The chosen software is MATLAB and Simulink for computer vision and trajectory calculation interfacing with Robotic Operating System (ROS). ROS is used for controlling a UR3 arm using ros_control and ur_modern_driver packages. Both the research and the implementation present a first approach for further applications and understanding over the current technologies for visual servoing tasks. These alternatives offer different easy, fast, and flexible methods to confront complex computer vision and robot control problems.
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Prát, Marek. "Návrh elektronicky rekonfigurovatelných filtračních struktur s moderními aktivními prvky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377113.
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The aim of master's thesis was design of electronically reconfigurable filters. Adjustability of pole frequency or quality factor is possible. First part of thesis deals with theoretical analysis of filters, their operation modes, design of frequency filters using Signal-Flow graph method and parasitic analysis. The next part describes active elements used in thesis. In a third part, three reconfigurable filters are described and designed and their simulations and parasitic analysis are made. Last part deals with filter design in EAGLE and experimental measurement.
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Hackel, Philipp Marius. "Katalytische Umsetzung von Rauchgaskomponenten in imprägnierten kornkeramischen Filterelementen experimentelle und rechnerische Modelluntersuchungen /." Karlsruhe : Univ.-Verl. Karlsruhe, 2007. http://www.uvka.de/univerlag/volltexte/2007/240/.
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Smith, George. "Refining queries on a treebank with XSLT filters : approaching the universal quantifier." Universität Potsdam, 2005. http://opus.kobv.de/ubp/volltexte/2006/867/.
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This paper discusses the use of XSLT stylesheets as a filtering mechanism
for refining the results of user queries on treebanks. The discussion is within the context of the TIGER treebank, the associated search engine and query language, but the general ideas can apply to any search engine for XML-encoded treebanks.
It will be shown that important classes of linguistic phenomena can be accessed by applying relatively simple XSLT templates to the output of a query, effectively simulating the universal quantifier for a subset of the query language. uni-potsdam.de/cgi-bin/publika/view.pl?id=206">
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Gajdoš, Adam. "Elektronicky rekonfigurovatelné kmitočtové filtry." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-241983.
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The aim of the thesis was design of reconnection-less and electronically reconfigurable filters of SISO type with non-traditional active elements. Adjustability of bandwidth or quality factor is also required. First part of the thesis deals with theoretical analysis of filters, their operation modes and design of frequency filters using Signal-flow graph method aswell. Last but not least, electronical reconfiguration of transfer function and parasitic analysis was discussed. Another part describes active elements used in the practical part of thesis. Behaviors and design of active elements using existing circuits (e.g. UCC,EL2082) are described and their transformation into the Signal-flow graph form too. In the practical part five reconnection-less and reconfigurable filters of SISO type was designed using SNAP program. Simulations were done using Orcad program with ideal and real simulation models of active elements. Last part deals with filter design in EAGLE and experimental measurement.
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Michalička, Filip. "Syntéza elektronicky rekonfigurovatelných kmitočtových filtrů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413078.
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This diploma thesis deals with design of reconection-less electronically reconfigurable filter structures which have single input and single output using unconventional active elements, which have ability to adjust one of their parameter e.g. gain or transconductance. The first part describes basic parameters of frequency filters, the division of filters by frequency transfer response and used circuit elements, their operational modes, the principle of reconnection-less electronically reconfiguration and the circuit design method MUNV. Second part describes all active elements used in the proposal of filters, their properties and the implementation using existing transistor-level models. The third part contains the design of three reconnection-less electronically reconfigurable filters and the simulations results obtained from simulation programs OrCAD Capture and PSpice. The obtained results were compared with theoretical behaviour. This part also contains results of these analyses: sensitivity, parasitic, Monte Carlo and temperature to determine the behaviour in varied cases.
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Hinot, Karelle. "Catalytic soot oxidation by platinum on sintered metal filters influence of the platinum quantity, particle size and location, and investigation of the platinum soot contact /." Karlsruhe : Univ.-Verl. Karlsruhe, 2007. http://www.uvka.de/univerlag/volltexte/2007/201/.
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Hinot, Karelle. "Catalytic soot oxidation by platinum on sintered metal filters influence of the platinum quantity, particle size and location, and investigation of the platinum soot contact." Karlsruhe Univ.-Verl. Karlsruhe, 2006. http://www.uvka.de/univerlag/volltexte/2007/201/.
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Melo, Priscila Facco de. "Projeto e implementação de um filtro ativo universal trifásico controlado digitalmente." Universidade Tecnológica Federal do Paraná, 2010. http://repositorio.utfpr.edu.br/jspui/handle/1/900.
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Este trabalho apresenta o desenvolvimento e a implementação de um filtro ativo trifásico universal, o qual é composto pela conexão de três módulos monofásicos. Cada módulo monofásico é independente e é controlado por um processador digital de sinais. A estrutura de potência utilizada em cada módulo é uma topologia de três braços em que dois conversores compartilham um braço, de forma que o circuito apresenta número de componentes de potência reduzido na versão monofásica e pode operar sem o uso de um transformador. O filtro ativo proposto é capaz de compensar a distorção harmônica e regular o nível da tensão entregue para a carga. Ele também compensa a corrente da carga conectada na saída do filtro, corrigindo seu conteúdo harmônico e fator de potência. Apresenta-se uma revisão bibliográfica sobre alguns assuntos referentes à qualidade de energia elétrica, como os conceitos de distorção harmônica, seus efeitos e as normas pertinentes. Em seguida, as principais topologias de filtros ativos são apresentadas. Três módulos monofásicos, de 1500 W cada, são implementados e o funcionamento da estrutura de três braços, bem como os principais parâmetros do circuito de potência são analisados. Um algoritmo PLL (Phase Locked Loop) digital é empregado para o sincronismo de cada módulo. Controladores repetitivos são utilizados para o controle da tensão e da corrente. Os detalhes da estratégia de controle, bem como o projeto do circuito de sincronismo e dos controladores digitais são apresentados. Os resultados teóricos obtidos são comprovados através da simulação e da experimentação do protótipo implementado. A utilização do filtro ativo possibilitou a redução do conteúdo harmônico das cargas utilizadas nos testes, bem como elevou o fator de potência e corrigiu a distorção e o nível da tensão entregue para a carga.This paper presents the development and implementation of a three-phase universal active filter consisting of three single-phase modules. Each single-phase module is independent and is controlled by a digital signal processor. The power structure used in each module is a three-arm topology in which two converts share one arm, so that the circuit has a reduced count of components and can operate without using a transformer. The proposed active filter can compensate harmonic distortion and adjust the voltage level delivered to the load. It also compensates the load current connected to the filter output, correcting its harmonic content and power factor. It presents a literature review on some issues related to power quality, as the concepts of harmonic distortion, its effects and relevant standards. Then the principal topologies used in active filters are presented. Three single-phase modules, each one of 1500 W, are implemented and the operation principles of the three-arms structure and the main parameters of the power circuit are analyzed. A digital PLL (Phase Locked Loop) is employed to synchronize each module. Repetitive controllers are used to control the voltage and current. Details of the control strategy and circuit design of the synchronism and digital controllers are presented. The results are verified through simulation and experimentation of the implemented prototype. Using the active filter was possible to reduce the harmonic content of the loads used in the experimental tests as well as increasing the power factor and to correct the distortion and voltage level supplied to the load.
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Jakob, Julia. "Prinzipien des Universal Designs - Praktische Anwendung und organisatorische Verankerung." St. Gallen, 2004. http://www.biblio.unisg.ch/org/biblio/edoc.nsf/wwwDisplayIdentifier/01665785001/$FILE/01665785001.pdf.
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Serni, Nicole Mioni [UNESP]. "Gênero discursivo cinema, o filme musical: análise dialógica de Across the Universe." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/121919.
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Ao considerar o cinema musical como um gênero fértil para o estudo de diálogos entre gêneros, esta pesquisa reflete acerca do filme musical Across the Universe (2007), de Julie Taymor, em sua arquitetônica (forma, estilo e conteúdo). O gênero cinema e o gênero canção encontram-se em constante diálogo no musical e, especificamente, no corpus aqui trabalhado. As canções inseridas no filme são todas compostas pela banda britânica The Beatles. As relações dialógicas e as genericidades reconhecidas nesta pesquisa são trabalhadas sob a ótica dos estudos do Círculo de Bakhtin e buscam analisar como o filme Across the Universe incorpora as canções de The Beatles e de que maneira o musical dialoga com a letra de cada canção e com cada situação em que são interpretadas no filme. Sob a abordagem dialógica do Círculo, a análise do filme em questão possibilita reconhecer o cinema como característico por ser composto por outros gêneros que a ele se incorporam e fundem em sua composição, como ocorre em Across the Universe, em que a canção e a dança, por exemplo, são parte da construção do cinema musical
Considering cinema as a fertile genre for the studies of dialogue between genres this research thinks about the musical film Across the Universe (2007), by Julie Taymor, in its architectonic (form, style and content). The cinema genre and the song genre are in constant dialogue in the musical film and specifically in the corpus chosen. The songs within the movie are all composed by the british band The Beatles. The dialogical relations and the genres recognized in this research are analyzed within the perspective of the studies of the Bakhtin Circle Bakhtin, and aim to analyze how the movie Across the Universe incorporates the songs by The Beatles and in which way the musical dialogues with the lyrics of each song and with each situation in which they are sung in the movie. Within the dialogical perspective of the Circle the analysis of the movie makes it possible to recognize the cinema as composed by other genres that are incorporated within its composition, such as in Across the Universe, in which song and dance are part of the composition of the musical film
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Serni, Nicole Mioni. "Gênero discursivo cinema, o filme musical : análise dialógica de Across the Universe /." Araraquara, 2014. http://hdl.handle.net/11449/121919.
Full textAbstract:
Orientador: Luciane de PaulaBanca: Marina Célia Mendonça
Banca: Grenissa Bonvino Stafuzza
Resumo: Ao considerar o cinema musical como um gênero fértil para o estudo de diálogos entre gêneros, esta pesquisa reflete acerca do filme musical Across the Universe (2007), de Julie Taymor, em sua arquitetônica (forma, estilo e conteúdo). O gênero cinema e o gênero canção encontram-se em constante diálogo no musical e, especificamente, no corpus aqui trabalhado. As canções inseridas no filme são todas compostas pela banda britânica The Beatles. As relações dialógicas e as genericidades reconhecidas nesta pesquisa são trabalhadas sob a ótica dos estudos do Círculo de Bakhtin e buscam analisar como o filme Across the Universe incorpora as canções de The Beatles e de que maneira o musical dialoga com a letra de cada canção e com cada situação em que são interpretadas no filme. Sob a abordagem dialógica do Círculo, a análise do filme em questão possibilita reconhecer o cinema como característico por ser composto por outros gêneros que a ele se incorporam e fundem em sua composição, como ocorre em Across the Universe, em que a canção e a dança, por exemplo, são parte da construção do cinema musical
Abstract: Considering cinema as a fertile genre for the studies of dialogue between genres this research thinks about the musical film Across the Universe (2007), by Julie Taymor, in its architectonic (form, style and content). The cinema genre and the song genre are in constant dialogue in the musical film and specifically in the corpus chosen. The songs within the movie are all composed by the british band The Beatles. The dialogical relations and the genres recognized in this research are analyzed within the perspective of the studies of the Bakhtin Circle Bakhtin, and aim to analyze how the movie Across the Universe incorporates the songs by The Beatles and in which way the musical dialogues with the lyrics of each song and with each situation in which they are sung in the movie. Within the dialogical perspective of the Circle the analysis of the movie makes it possible to recognize the cinema as composed by other genres that are incorporated within its composition, such as in Across the Universe, in which song and dance are part of the composition of the musical film
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Fritsch, Markus. "Ansatzpunkte zur Steigerung des Kundennutzens für die Generation 50plus mittels Universal Design." St. Gallen, 2006. http://www.biblio.unisg.ch/org/biblio/edoc.nsf/wwwDisplayIdentifier/00639427002/$FILE/00639427002.pdf.
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RÊGO, Isabel Almeida Marinho do. "Universo de Solaris Revisitado: outras experiências de mundo são possíveis." Universidade Federal de Pernambuco, 2015. https://repositorio.ufpe.br/handle/123456789/17042.
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CAPES
Esta pesquisa parte das definições acerca do gênero Ficção Científica, em busca de um aprofundamento acerca do corpus de pesquisa que consiste em obras desse gênero: os espaços cinematográficos criados pelos diretores Steven Soderbergh e Andrei Tarkovski inspirados no universo Solaris arquitetado por Stanislaw Lem em seu romance homônimo. Diversos questionamentos científicos são descritos, para então, serem identificados nos espaços cinematográficos. Esta pesquisa apresenta como principal objetivo descrever como os filmes selecionados configuram os questionamentos científicos em seus espaços, por meio dos recursos narrativos; através da análise fílmica dos espaços isso pôde ser realizado. As teorias estéticas ofereceram uma forma de pensar a articulação dos conceitos acerca da ciência com os recursos de narração utilizados pelos cineastas. Os espaços construídos nos filmes materializam os conceitos mobilizados na forma de experiências estéticas, os principais paradigmas questionados são: a associação de fenômenos estranhos em modelos conhecidos; a grande valorização dada à ciência em detrimento de outros campos de conhecimento e seu decorrente isolamento; o humano se colocando com toda sua subjetividade própria como cientista em busca de objetividade extrema; a pulsão por destruir o desconhecido, e dominar sobrepujando o conhecer; e a ilusão de que o contato com seres de outros planetas solucionem enigmas terrestres.
This study starts by looking at the definitions of the genre of Science Fiction with a view to deepening awareness of the corpus of research which consists of works of this genre: the cinematographic spaces created by the directors Steven Soderbergh and Andrei Tarkovsky inspired by the universe of Solaris crafted by Stanislaw Lem in his novel of the same name. Several scientific lines of enquiry are entered into which are then identified in these cinematographic spaces. The main objective of this research is to describe how the films selected shape the scientific enquiries in their spaces, by using narrative resources; this could be achieved by analyzing how spaces were filmed. Aesthetic theories offered a way of thinking about how the concepts to do with science were interweaved with the narrative resources used by filmmakers. The spaces built in the movies materialize the concepts mobilized in the form of aesthetic experiences. The main paradigms questioned are: the association of strange phenomena in well-known models; the huge extent to which special value is given to science to the detriment of other fields of knowledge and its resulting isolation; human beings placing themselves with all their own subjectivity as scientists in search of extreme objectivity; the ardent desire to destroy the unknown, to master and totally dominate knowledge; and the illusion that contact with beings from other planets may solve terrestrial enigmas.
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Campana, Maristela Albertini Loureiro. "Ciranda : do canto de roda ao universo composicional contemporâneo /." São Paulo : [s.n.], 2011. http://hdl.handle.net/11449/95155.
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Orientador: Sonia Regina Albano de LimaBanca: Antônio Teixeira de Macedo Neto
Banca: Stela Maris Fazio Battaglia
Resumo: Esta dissertação de mestrado tem a Ciranda como objeto de estudo, uma manifestação cultural brasileira encontrada em diferentes regiões do país, com expressões peculiares em cada uma delas. Durante nossa atuação profissional, observamos um precário enraizamento dos educadores de música na cultura do país; a música popular brasileira de raiz era pouco apreciada e divulgada no contexto escolar. Diante desta realidade, a pesquisa pretendeu verificar qual o tipo de repertório musical que melhor contemplasse as raízes culturais brasileiras e, em que bases, esse repertório poderia ser repassado para os professores de música. A diversidade de manifestações musicais encontradas em nossa cultura tornou necessária a escolha de uma delas, no caso, a Ciranda, no intuito de ressaltar o valor de sua presença nos espaços educacionais. Para tanto, era fundamental compreender a sua natureza, a sua trajetória histórica e como ela esta presente na atualidade. A escassez de material bibliográfico motivou-nos a buscar outras fontes originárias, daí o caráter documental da pesquisa. Os objetivos da investigação concentraram-se em conceituar a Ciranda sob uma perspectiva etimológica e cultural; apontar a sua diversidade nas regiões brasileiras; caracterizar seus elementos definidores; apontá-la como uma manifestação cultural modificada pelo fenômeno da circularidade cultural. Concluímos a dissertação com a análise fenomenológica de quatro Cirandas, na busca de seus elementos identitários, sendo duas da tradição oral, sem autoria definida, uma da música popular, de Moacir Santos e Gilberto Gil e uma da música erudita, do compositor Almeida Prado. A fundamentação teórica da pesquisa pautou-se nos estudos de Mikhail Bakhtin, Padre Jaime Diniz, Evandro Rabello, H. J. Koellreutter, entre outros. A pesquisa indicou... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: This master degree thesis has the Ciranda as its object of study, a Brazilian cultural manifestation found in different regions of the country with peculiar expressions in each one. We observed, during our professional work, a poor rooting of music educators in the country's culture. The deep-rooted Brazilian popular music was little appreciated and spread in the school context. Given this reality, the research intended to investigate the kind of musical repertoire that best addressed the Brazilian cultural roots and on what basis this repertoire could be passed on to the music teachers. The diversity of musical expressions found in our culture made it necessary to choose one of them, in this case, the Ciranda, in order to emphasize the value of its presence in educational environments. Having this purpose in mind, it was essential to understand its nature, its historical trajectory and its presence today. The scarcity of publications led us to search other original sources, hence the documentary character of the research. The objectives of the investigation focused on conceptualizing Ciranda in an etymological and cultural perspective; show its diversity in the Brazilian regions; characterize its defining elements; show it as a cultural expression modified by the cultural phenomenon of circularity. We conclude the thesis with the phenomenological analysis of four Cirandas in search of its identity elements being two from the oral tradition, without definite authorship, one from the popular music of Moacir Santos and Gilberto Gil and one from the classical music the composer being Almeida Prado. The theoretical research was based on studies of Mikhail Bakhtin, Father Jaime Diniz, Evandro Rabello, H.J.Koellreutter, among others. The research showed that Ciranda is a token of the Brazilian culture transformed by the phenomenon... (Complete abstract click electronic access below)
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Campana, Maristela Albertini Loureiro [UNESP]. "Ciranda: do canto de roda ao universo composicional contemporâneo." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/95155.
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campana_mal_me_ia.pdf: 4924139 bytes, checksum: 38de350a195798204a3c01c4b066953d (MD5)Universidade Estadual Paulista (UNESP)
Esta dissertação de mestrado tem a Ciranda como objeto de estudo, uma manifestação cultural brasileira encontrada em diferentes regiões do país, com expressões peculiares em cada uma delas. Durante nossa atuação profissional, observamos um precário enraizamento dos educadores de música na cultura do país; a música popular brasileira de raiz era pouco apreciada e divulgada no contexto escolar. Diante desta realidade, a pesquisa pretendeu verificar qual o tipo de repertório musical que melhor contemplasse as raízes culturais brasileiras e, em que bases, esse repertório poderia ser repassado para os professores de música. A diversidade de manifestações musicais encontradas em nossa cultura tornou necessária a escolha de uma delas, no caso, a Ciranda, no intuito de ressaltar o valor de sua presença nos espaços educacionais. Para tanto, era fundamental compreender a sua natureza, a sua trajetória histórica e como ela esta presente na atualidade. A escassez de material bibliográfico motivou-nos a buscar outras fontes originárias, daí o caráter documental da pesquisa. Os objetivos da investigação concentraram-se em conceituar a Ciranda sob uma perspectiva etimológica e cultural; apontar a sua diversidade nas regiões brasileiras; caracterizar seus elementos definidores; apontá-la como uma manifestação cultural modificada pelo fenômeno da circularidade cultural. Concluímos a dissertação com a análise fenomenológica de quatro Cirandas, na busca de seus elementos identitários, sendo duas da tradição oral, sem autoria definida, uma da música popular, de Moacir Santos e Gilberto Gil e uma da música erudita, do compositor Almeida Prado. A fundamentação teórica da pesquisa pautou-se nos estudos de Mikhail Bakhtin, Padre Jaime Diniz, Evandro Rabello, H. J. Koellreutter, entre outros. A pesquisa indicou...
This master degree thesis has the Ciranda as its object of study, a Brazilian cultural manifestation found in different regions of the country with peculiar expressions in each one. We observed, during our professional work, a poor rooting of music educators in the country’s culture. The deep-rooted Brazilian popular music was little appreciated and spread in the school context. Given this reality, the research intended to investigate the kind of musical repertoire that best addressed the Brazilian cultural roots and on what basis this repertoire could be passed on to the music teachers. The diversity of musical expressions found in our culture made it necessary to choose one of them, in this case, the Ciranda, in order to emphasize the value of its presence in educational environments. Having this purpose in mind, it was essential to understand its nature, its historical trajectory and its presence today. The scarcity of publications led us to search other original sources, hence the documentary character of the research. The objectives of the investigation focused on conceptualizing Ciranda in an etymological and cultural perspective; show its diversity in the Brazilian regions; characterize its defining elements; show it as a cultural expression modified by the cultural phenomenon of circularity. We conclude the thesis with the phenomenological analysis of four Cirandas in search of its identity elements being two from the oral tradition, without definite authorship, one from the popular music of Moacir Santos and Gilberto Gil and one from the classical music the composer being Almeida Prado. The theoretical research was based on studies of Mikhail Bakhtin, Father Jaime Diniz, Evandro Rabello, H.J.Koellreutter, among others. The research showed that Ciranda is a token of the Brazilian culture transformed by the phenomenon... (Complete abstract click electronic access below)
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Caporicci, Paméla. "Les effets des programmes universels de promotion de la prosocialité chez les enfants, garçons et filles, d’âge préscolaire." Mémoire, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/8779.
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La présente étude s'intéresse au développement de la prosocialité des garçons et des filles à la période préscolaire et aux effets des programmes qui en font la promotion. Plus spécifiquement, elle vise à 1) vérifier la fidélité de l'implantation du programme Brindami dans deux Centre de la petite enfance de la région de Magog et 2) à vérifier les effets du programme Brindami sur la prosocialité, les difficultés de comportements intériorisées et extériorisées des enfants de trois à cinq ans et enfin de vérifier si le programme est aussi efficace pour les garçons que pour les filles (n = 94). L'évaluation de la fidélité d'implantation a démontré une bonne qualité d’implantation. L'évaluation pré et post intervention a été réalisé auprès du groupe intervention et d’un groupe témoin équivalent. Les données sur la prosocialité et les difficultés de comportement intériorisées et extériorisées ont été recueillies auprès de l’éducatrice des enfants ainsi qu'auprès des parents. Les analyses multivariées à mesures répétées démontrent selon les éducatrices un effet différent du programme Brindami pour les garçons et pour les filles; seules les filles du groupe intervention ont amélioré leur prosocialité entre les deux temps de mesure. Les retombées pour la psychoéducation sont discutées.
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de, Andrade Mendes Daniela. "Avaliação da centralização do preparo biomecânico em canais radiculares preparados com os sistemas ProTaper UniversalTM, ProfileTM e Twisted FileTM." Universidade Federal de Pernambuco, 2010. https://repositorio.ufpe.br/handle/123456789/8742.
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Previous issue date: 2010O conhecimento da morfologia interna do sistema de canais radiculares e suas diversas conformações têm um importante papel no sucesso da terapia endodôntica. A familiarização com as curvaturas torna-se importante para execução de um correto planejamento do preparo biomecânico dos canais radiculares escolhendo técnicas e instrumentos apropriados para cada situação, uma vez que a manutenção da sua anatomia original é de suma importância para o sucesso da terapêutica aplicada. O preparo biomecânico do sistema de canais radiculares apresenta como objetivo promover a limpeza, modelagem tridimensional e a completa desinfecção do sistema de canais radiculares utilizando instrumentos e soluções que permitam maior precisão e menor tempo de trabalho. Desde sua introdução, os instrumentos endodônticos confeccionados em níquel-titânio (NiTi) vêm sendo largamente utilizados por apresentar grande flexibilidade e capacidade em manter a morfologia original do canal radicular. Instrumentos rotatórios confeccionados com esta liga promovem o alargamento das porções curvas dos canais mantendo a sua anatomia original, provocando menores índices de desvios. Esta pesquisa avaliou a centralização do preparo biomecânico após a instrumentação mecânico-rotatória efetuada por três sistemas rotatórios (ProTaperTM, ProFileTM e Twisted-FileTM) em canais radiculares curvos e a conformação das paredes dentinárias após o preparo biomecânico efetuado pelo sistema ProTaperTM. Diante dos resultados obtidos, pôde-se concluir que: os três sistemas analisados ProTaper, ProFile e Twisted-File foram capazes de realizar o preparo biomecânico centralizado na porção apical do canal radicular provocando pequenas proporções de desvio, não sendo observadas diferenças estatisticamente significantes entre os mesmos; O sistema rotatório ProTaper UniversalTM não foi totalmente eficaz em instrumentar todas as paredes do terço apical dos canais radiculares, apresentando porém uma capacidade aceitável para a modelagem de canais radiculares curvos
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Heidari, Leila. "Calage d'historiques de réservoirs pétroliers par le filtre de Kalman d'ensemble et des méthodes de paramétrisation." Phd thesis, École Nationale Supérieure des Mines de Paris, 2011. http://pastel.archives-ouvertes.fr/pastel-00581082.
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Le calage historique permet l'intégration de données acquises après la production dans la construction de modèles de réservoir. Le filtre de Kalman d'ensemble (EnKF) est une méthode d'assimilation (ou calage historique) séquentielle capable d'intégrer les données mesurées dès qu'ils sont obtenus. Ce travail est basé sur l'application de l' EnKF pour le calage historique et est divisé en deux sections principales. La première section traite l'application de la EnKF à plusieurs cas d'études afin de mieux comprendre les avantages et les inconvénients de la méthode. Ces cas d'étude incluent deux cas d'étude synthétiques (un simple et un plutôt complexe), un modèle de faciès et un modèle de réservoir réel. Dans la plupart des cas, la méthode a réussi à reproduire les données mesurées. Les problèmes rencontrés sont expliqués et des solutions possibles sont proposées. La seconde partie traite deux nouveaux algorithmes proposé en combinant l'EnKF avec deux méthodes de paramétrisation: méthode des points pilotes et méthode de déformation graduelle, permettant la préservation les propriétés statistiques de l'ordre de deux (moyenne et covariance). Les deux algorithmes développés sont appliqués au cas d'étude synthétique simple : la première méthode peut réussir avec un nombre suffisant et un bon positionnement des points pilotes. Pour la déformation graduelle, l'application peut réussir si l'ensemble de fond est assez grand.
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Birrien, Florent. "Assimilation de données et inversion bathymétrique pour la modélisation de l'évolution des plages sableuses." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-00870775.
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Cette thèse présente une plateforme d'assimilation de données issues de l'imagerie vidéo et intégrée au modèle numérique d'évolution de profil de plage 1DBEACH. Le manque de jeux de données bathymétriques haute-fréquence est un des problèmes récurrents pour la modélisation morphodynamique littorale. Pourtant, des relevés topographiques réguliers sont nécessaires non seulement pour la validation de nos modèles hydro-sédimentaires mais aussi dans une perspective de prévision d'évolution morphologique de nos plages sableuses et d'évolution de la dynamique des courants de baïnes en temps réel. Les récents progrès dans le domaine de l'imagerie vidéo littorale ont permis d'envisager un moyen de suivi morphologique quasi-quotidien et bien moins coûteux que les traditionnelles campagnes de mesure. En effet, les images dérivées de la vidéo de type timex ou timestack rendent possible l'extraction de proxys bathymétriques qui permettent de caractériser et de reconstruire la morphologie de plage sous-jacente. Cependant, ces méthodes d'inversion bathymétrique directes sont limitées au cas linéaire et nécessitent, selon les conditions hydrodynamiques ambiantes, l'acquisition de données vidéo sur plusieurs heures voire plusieurs jours pour caractériser un état de plage. En réponse à ces différents points bloquants, ces travaux de thèse proposaient l'implémentation puis la validation de méthodes d'inversion bathymétrique basées sur l'assimilation dans notre modèle de différentes sources d'observations vidéo disponibles et complémentaires. A partir d'informations hétérogènes et non redondantes, ces méthodes permettent la reconstruction rapide et précise d'une morphologie de plage dans son intégralité pour ainsi bénéficier de relevés bathymétriques haute fréquence réguliers.
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Alves, Danúbia Ferreira. "Real maravilhoso e cinema: o universo ficcional de Gabriel García Márquez revisitado nos filmes Como água para chocolate e A casa dos espíritos." Universidade Federal de Uberlândia, 2014. https://repositorio.ufu.br/handle/123456789/11888.
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Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorEsta investigación parte de la noción de Real Maravilloso tomando los principales estudiosos del tema y enseguida destaca los elementos significativos en la escrita del colombiano Gabriel García Márquez, principalmente en su obra Cien años de soledad de 1967. El escritor al convertirse en una de las figuras más importantes de la vertiente literaria del Real Maravilloso y uno de los nombres de más relieve del boom de la literatura latinoamericana, extrapola el ámbito literario, prestando su estilo a otras manifestaciones artísticas, entre ellas el cine. Partiendo de esa idea de que el universo ficcional de Márquez se encuentra diseminado también en el cine fueron elegidas para análisis las narrativas fílmicas: Como agua para chocolate, del director mexicano Alfonso Arau, y A casa dos espíritos, del director danés Bille August, pues se configuran como adaptaciones de dos importantes novelas de las escritoras Isabel Allende e Laura Esquivel, que según la crítica se inspiran en el Real Maravilloso marqueziano . Para la realización de esta investigación fueron indispensables los estudios de Alejo Carpentier sobre el Real Maravilloso, principalmente en su prólogo de O reino de este mundo (2009), los conceptos de Antonio R. Esteves y Eurídice Figueiredo (2010), Irlemar Chiampi (2008), Bella Jozef, Mario Vargas Llosa (2007), Robert Stam (2008), Carolina Marinho (2009).
Este estudo inicialmente parte da noção de Real Maravilhoso tomando os principais estudiosos do tema e posteriormente ressalta os elementos significativos na escrita do colombiano Gabriel García Márquez, principalmente em sua obra Cem anos de solidão de 1967. O escritor ao tornar-se uma das figuras mais importantes da vertente literária do Real Maravilhoso e um dos nomes mais citados do boom da literatura latino-americana, extrapola o âmbito literário, emprestando seu estilo a outras manifestações artísticas, dentre elas o cinema. Partindo desse pressuposto de que o universo ficcional de Márquez encontra-se disseminado também no cinema foram escolhidas para análise as narrativas fílmicas: Como água para chocolate, do diretor mexicano Alfonso Arau, e A casa dos espíritos, do diretor dinamarquês Bille August, por configurar-se como adaptações de dois importantes romances das escritoras Isabel Allende e Laura Esquivel, que de acordo com a crítica bebem na fonte do Real Maravilhoso marqueziano . Para a realização desta investigação foram indispensáveis os estudos de Alejo Carpentier sobre o Real Maravilhoso, principalmente seu prólogo de O reino deste mundo (2009), as conceituações de Antonio R. Esteves e Eurídice Figueiredo (2010), Irlemar Chiampi (2008), Bella Jozef, Mario Vargas Llosa (2007), Robert Stam (2008), Carolina Marinho (2009)
Mestre em Teoria Literária
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Fischer, Claude. "Les états initiaux pour la prévision numérique en météorologie: incertitude des données et méthode de correction." Habilitation à diriger des recherches, Université Paul Sabatier - Toulouse III, 2009. http://tel.archives-ouvertes.fr/tel-00518946.
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Le mémoire fait la synthèse de mes travaux de recherche autour de la question de la production du ''meilleur`` état initial possible pour démarrer une prévision numérique de l'évolution de l'atmosphère. Cette thématique va nous amener à considérer la problématique de l'assimilation des données. En particulier, mes travaux ont abordé cette question en relation avec les modèles numériques de prévision météorologique régionaux, à aire limitée. Le mémoire peut se lire pour l'essentiel sous deux angles: * des considérations assez amont sur la recherche de l'état optimal d'un système dynamique connu imparfaitement, mais sur lequel un contrôle par des observations indépendantes est possible: observations ciblées dans un modèle idéalisé, scénarii de mesures, croissance des erreurs et analyse par vecteurs singuliers. * études poursuivies dans le cadre de l'implémentation d'une analyse variationnelle dans le modèle régional Aladin de Météo-France: croissance des erreurs dans ce modèle, réglage des variances d'erreur de prévision, prise en compte du système coupleur (plus précisément, de son analyse) dans un système couplé, propriétés de la solution adjointe Des perspectives de recherche et de développement sont abordées en conclusion.
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Damême, Aurélie. "British, actually : Working Title Films et la construction d'un cinéma britannique à vocation internationale." Thesis, Bordeaux 3, 2015. http://www.theses.fr/2015BOR30061.
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Cas à part dans le cinéma britannique contemporain, depuis 30 ans la société de production Working Title Films connaît un succès régulier sur la scène internationale. Son box-office cumulé se compte en milliards de dollars pour une centaine de longs métrages, qui lui ont valu des dizaines d'Oscars et de BAFTA, ainsi que quelques distinctions à Cannes, Berlin ou Venise. Ce succès attire pourtant les critiques de certains commentateurs, qui lui reprochent de se laisser submerger par les conventions du cinéma hollywoodien et de manquer d'ambitions culturelles, notamment à cause de son contrat avec la major Universal et de ses stratégies de distribution. Ils déplorent les représentations stéréotypées de la « britannicité » de certains de ses films, à l'instar des comédies de Richard Curtis ou de Rowan Atkinson. En effet, si Working Title a débuté avec un film audacieux, My Beautiful Laundrette (Stephen Frears, 1985), son premier grand succès commercial est Four Weddings and a Funeral (Mike Newell, 1994). Néanmoins, malgré leurs ambitions commerciales mondiales, Tim Bevan et Eric Fellner, les directeurs de Working Title, revendiquent leur britannicité et une « sensibilité européenne ». Celle-ci est concrétisée par un partenariat avec PolyGram Filmed Entertainment puis avec StudioCanal. Cette dimension transnationale – plutôt que transatlantique – n'est pas sans influence sur les films eux-mêmes, et concourt également à leur succès international. Plusieurs intrigues mettent même en scène des relations interculturelles. Les films affichent des stratégies de compromis entre spécificité culturelle et universalité, avec des équilibres changeants. En effet, on ne peut nier la diversité déconcertante de la filmographie, tant du point de vue des contenus culturels que du degré de créativité. Working Title collabore avec des réalisateurs britanniques d'horizons variés, comme Richard Curtis, Stephen Frears, Edgar Wright ou Joe Wright. De plus, elle franchit souvent les frontières nationales, essentiellement outre-Atlantique, en particulier grâce à son partenariat avec les frères Coen, mais aussi en Australie, en Afrique du Sud ou dans d'autres pays européens. Tout cela place donc Working Title au cœur des débats sur les enjeux du cinéma britannique actuel, concernant son identité (cinéma national / post-national), l'équilibre entre les aspects économiques et artistiques, les relations avec Hollywood, ou encore le rôle des politiques culturelles. Ainsi, cette thèse tâche de comprendre l'évolution et le succès de cette société phare du cinéma britannique, en s'attachant autant à l'étude de son fonctionnement (partenariats, développement, production, distribution) qu'à l'analyse textuelle de ses filmsA unique entity in today's British film industry, production company Working Title Films has been responsible for many international hits since its creation in 1984. Its films have earned billions of dollars, and they have won many film awards, including dozens of Academy Awards and BAFTA Awards, but also accolades in Cannes, Berlin or Venice. Yet, some commentators criticize Working Title for being excessively influenced by Hollywood, hence lacking cultural ambitions. They blame the company's partnership with Universal and underline that some of its films broadcast a stereotypical view of Britishness, especially successful comedies by Richard Curtis, or the ones starring Rowan Atkinson. Indeed, the company's first film was My Beautiful Laundrette (Stephen Frears, 1985), a creative, committed film, but its more recent films tend to be more mainstream and its first international hit was Four Weddings and A Funeral (Mike Newell, 1994). However, Working Title seems to draw some of its strength from its British identity. Tim Bevan and Eric Fellner, the two producers behind Working Title, also defend its “European sensibility”. The latter is reinforced by a partnership with PolyGram Filmed Entertainment in the nineties, and then with StudioCanal. So it is a transnational rather than a transatlantic company. Its films are transnational too, and some plots even include intercultural relationships. They use various strategies to broaden their audience, such as crossover and polysemy, and they try to balance cultural specificity with universality. However, most importantly, one cannot deny the incredible diversity of the films – regarding both their national identity and their level of creativity. Therefore, Working Title offers a fascinating case study to learn more about the issues of British cinema, about its identity (national / post-national cinema), the balance between art and industry, its relationship with Hollywood, and the role of cultural policies. In other words, this dissertation will study the evolution of Working Title Films, focusing on its methods, its strategies and also on the textual analysis of its diverse films, as a way to investigate contemporary British cinema and its issues
39
Berthet, Lionel. "Prévision des crues au pas de temps horaire : pour une meilleure assimilation de l'information de débit dans un modèle hydrologique." Phd thesis, AgroParisTech, 2010. http://pastel.archives-ouvertes.fr/pastel-00529652.
Full textAbstract:
La modélisation hydrologique Pluie - Débit compte parmi les outils incontournables pour prévoir les crues, car elle permet d'atteindre des horizons plus lointains que de nombreuses autres méthodes. Pour tenter d'améliorer la qualité des prévisions, les hydrologues ont proposé de nombreuses approches d'assimilation de données. Cette thèse s'intéresse à un modèle Pluie - Débit fonctionnant au pas de temps horaire. Elle propose une comparaison de nombreuses méthodes de mise-à-jour de ce modèle par l'assimilation de la donnée de débit observé à l'exutoire du bassin versant, dans le but de fournir des prévisions de crue à des horizons allant de quelques heures à quelques jours. Les mises-à-jour étudiées portent sur les paramètres du modèle, ses états et ses sorties. Certaines sont déterministes, d'autres probabilistes. Ce travail a permis de mettre en avant l'interaction qui existe entre la structure du modèle hydrologique et les mises-à-jour. Ces deux éléments se caractérisent par des dynamiques temporelles différentes. Nos résultats plaident pour que le modèle soit considéré comme un tout et non comme la juxtaposition d'un modèle hydrologique et d'une procédure de mise-à-jour. Il nous paraît préférable d'optimiser la structure et de caler le modèle en tenant compte des mises-à-jour qui seront appliquées. Le modèle donnant les meilleures prévisions associe une structure hydrologique très proche de celle obtenue au pas de temps journalier et deux mises-à-jour du modèle, l'une modifiant un état crucial du modèle, l'autre corrigeant ses sorties par un réseau de neurones artificiels. Cette combinaison a été évaluée à l'aide d'une sélection de critères de performance adaptés à l'objectif du modèle, sur un vaste ensemble de bassins versants français. Ses performances sont robustes et se comparent favorablement à d'autres modèles de prévision.
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Duchez, Aurélie. "Contrôle du courant Nord Méditerranéen dans le golfe du Lion : une approche par simulation du système d'observation." Phd thesis, Université de Toulon et du Var, 2011. http://tel.archives-ouvertes.fr/tel-00627365/en/.
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La circulation du golfe du Lion est influencée par un forçage atmosphérique intense et le Courant Nord Méditerranéen (CNM). Une configuration au 1/16° a été utilisée pour modéliser la dynamique complexe de cette région, mais ne permet pas de modéliser correctement le CNM. Nous avons utilisé la méthode d'assimilation du filtre SEEK afin de combiner l'information contenue dans ce modèle et celle provenant d'observations synthétiques altimétriques (de type SARAL-AltiKa) et in situ, extraites d'une configuration réaliste du golfe du Lion au 1/64°. Afin d'évaluer la qualité des résultats, des diagnostics statistiques et physiques ont été établis et témoignent d'une bonne qualité de l'expérience. On a ainsi montré une amélioration des caractéristiques du CNM en surface et en profondeur, de son activité mésoéchelle et permis l'intrusion de branches de recirculation sur le plateau. Une meilleure représentation de ce courant a permis d'améliorer la quantité des échanges côte-large de même que la caractéristique des eaux du plateau, ce qui a permis la formation d'eaux denses hivernales, leur convection puis leur cascading le long du talus. L'assimilation a aussi amélioré les caractéristiques du panache du Rhône. On a ainsi montré que l'assimilation de nouvelles formes d'observations dans les systèmes opérationnels permettra de contrôler des processus plus fins et proches des côtes, non contrôlés par les systèmes d'observations actuels.
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Tandeo, Pierre. "MODÉLISATION SPATIO-TEMPORELLE D'UNE VARIABLE QUANTITATIVE À PARTIR DE DONNÉES MULTI-SOURCES APPLICATION À LA TEMPÉRATURE DE SURFACE DES OCÉANS." Phd thesis, Agrocampus - Ecole nationale supérieure d'agronomie de rennes, 2010. http://tel.archives-ouvertes.fr/tel-00582679.
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Ce travail de thèse porte sur une variable océanographique importante dans le suivi du climat : la température de surface des océans. Au niveau global, les observations de cette température sont fournies principalement par des radiomètres embarqués sur des satellites. Afin de traiter ce flux important de données, un traitement statistique s'impose dans le but de synthétiser l'information en des cartes globales et quotidiennes de notre variable d'intérêt. Pour ce faire, nous proposons un modèle linéaire de type espace-d'état avec des erreurs Gaussiennes. Nous commençons par présenter ce modèle sur des données issues de séries temporelles ayant un échantillonnage irrégulier. Suit un travail d'inférence avec la mise en place d'un schéma d'estimation des paramètres, basé sur la combinaison d'une méthode des moments et du maximum de vraisemblance au travers de l'algorithme EM et des probabilités de filtrage et lissage de Kalman. Nous appliquons enfin cette méthodologie pour estimer les variances d'erreurs et le paramètre de corrélation temporelle à tout l'océan Atlantique. Nous ajoutons ensuite la composante spatiale et proposons une structure d'ordre deux, séparable, basée sur le produit d'une covariance temporelle et d'une covariance spatiale ani- sotrope. Les paramètres de cette dernière sont estimés sur l'océan Atlantique à partir de techniques géostatistiques usuelles et forment un atlas pertinent pour les océanographes. Fi- nalement, nous montrons que l'apport de l'information spatiale augmente le pouvoir prédictif du modèle.
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Teng, Tsung-Wei, and 鄧宗維. "Synthesis of a Universal Biquadratic Transimpedance Filter." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/92332183006023169606.
Full textAbstract:
碩士中原大學
電子工程研究所
93
The application of analog current mode circuits is discussed in this thesis. A universal biquard filter synthesized by current conveyor is presented. This biquard uses four kinds of current mode elements with grounded resistors and capacitors. With its three output terminals, this biquard can realize second order high-pass, band-pass, and low-pass functions. A new multi-output current differential buffer amplifier (MOCDBA) is also presented. With the second generation current conveyor (CCII), the current feedback amplifier (CFA), and the differential difference current conveyor (DDCC), the design and realization of this biquard is discussed by applying the idea of two-integrator loop, signal flow graph, and transmission zeros. The DC characteristics of the active elements mentioned in this thesis were simulated by inserting the 0.5um 2P2M process parameters from UMC to verify with the theoretical values. Also, the biquard functions were simulated in the same way. The sensitivity analysis, the worst case analysis of process variations, and the noise analysis are discussed in this thesis as well. Furthermore, the interference to the universal filter caused by the influence of environment to the devices, the process variation during actual processing, and internal noise sources are also presented respectively.
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Jiang, Ying-Ci, and 江英麒. "OTRA-Based Voltage-Mode Universal Biquadratic Filter Structure." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/03491290570597522290.
Full textAbstract:
碩士中原大學
電機工程研究所
98
In this paper, an operational transresistance amplifier (OTRA) was use to design circuit. But between the OTRA characteristic equation and operator transconductance amplifier (OTA) has Dual Relationship, looking from the dual condition, it possibly and OTA has the coordinated merit. OTRA input end virtual ground, therefore does not have parasitics effect. It is only one may eliminate input end parasitics effect active comoponent. Because has this special characteristic, therefore this paper only then uses this comoponent to design the filter. This paper uses three active comoponent, two capacitance and eight resistances. We can design to High-Pass, Low-Pass, Band-Pass, Notch and All-Pass filter signals the second-order voltage-type filter circuit. Secondly, to explore how to adjust the capacitance value and transduction value of OTRA to absorb the parasitic effects in order to obtain more accurate filter circuits. This paper has not used the part in design a circuit's process to capacitance of at least the number of components, this is a very good merit. Finally, may know in circuit simulate's result, this paper designs of output signal's the electric circuit magnitude of error is below 5%, the sensitivity is below 1.
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Lin, Chang-Ching, and 林長青. "The Universal Filter Employing Current-Mode Active Elements." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/46930948861819414536.
Full textAbstract:
碩士中原大學
電子工程研究所
92
Abstract This thesis mainly discusses the applications of current-mode active elements. One of the applications is the structures of current-mode universal filters, and the other is the designing method of a filter. It’s proposed two new universal filters. The first one is a voltage-mode universal filter, and the second one is a universal filter with current input applying KHN (Kerwin-Huelsman-Newcomb) configuration. In this thesis, the Differential Difference Current Conveyors (DDCC’s) are used to realize the first proposed filter circuit structure. The proposed universal filter employs two-integrator Loop structure and signal flow diagram method to collocate transmission-zeros rule for explaining the design and the principle of the filter. Hspice simulator applying UMC 0.5μm 2P2M process parameter is used to simulate the characteristics and feasibility of the proposed circuit. The passive elements of the circuit are all grounded and suitable for high frequency operation and monolithic chip implementation. The second part of the thesis introduces the process of designing impedance simulators and circuits of negative resistors. Simulation results of the negative resistor circuit are used to examine the principle. Finally, this thesis employs Current Feedback Amplifier (CFA) and Current Differencing Buffered Amplifier (CDBA) to synthesize the proposed new KHN filter and construct the configuration using signal flow diagram. Hspice simulation results of the proposed KHN universal filter coincide with the theoretical results.
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Peng, Kuo-Hua, and 彭國華. "Design of Universal Biquadratic Filter Using Current-feedback Amplifiers." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/97b2pn.
Full textAbstract:
碩士中原大學
電子工程研究所
91
Abstract A new configuration for realizing voltage-mode universal biquadratic filter by using three current-feedback amplifiers (CFAs), two capacitors and four resistors is presented. The proposed configuration can realize lowpass, bandpass, highpass, notch and allpass transfer functions. Some of the derived filter types from the proposed universal biquadratic filter have the advantage of having one (or two) more simultaneous output filter responses. One of the derived filter types has the advantages of realizing non-inverting lowpass, inverting bandpass and non-inverting highpass signals simultaneously with high input impedance and grounded capacitors. The active and passive sensitivities are low. Because the output impedance of the CFA is very low, the output terminals of the proposed configuration can be directly connected to the next stage.
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Ahmed, Chandrama. "Continuous characterization of universal invertible amplifier using source noise." Thesis, 2017. https://doi.org/10.7912/C25Q1M.
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Indiana University-Purdue University Indianapolis (IUPUI)With passage of time and repeated usage of a system, component values that make up the system parameters change, causing errors in its functional output. In order to ensure the fidelity of the results derived from these systems it is thus very important to keep track of the system parameters while being used. This thesis introduces a method for tracking the existing system parameters while the system was being used using the inherent noise of its signal source. Kalman filter algorithm is used to track the inherent noise response to the system and use that response to estimate the system parameters. In this thesis this continuous characterization scheme has been used on a Universal Invertible Amplifier (UIA). Current biomedical research as well as diagnostic medicine depend a lot on shape profile of bio-electric signals of different sources, for example heart, muscle, nerve, brain etc. making it very important to capture the different event of these signals without the distortion usually introduced by the filtering of the amplifier system. The Universal Invertible Amplifier extracts the original signal in electrodes by inverting the filtered and compressed signal while its gain bandwidth profile allows it to capture from the entire bandwidth of bioelectric signals. For this inversion to be successful the captured compressed and filtered signals needs to be inverted with the actual system parameters that the system had during capturing the signals, not its original parameters. The continuous characterization scheme introduced in this thesis is aimed at knowing the system parameters of the UIA by tracking the response of its source noise and estimating its transfer function from that. Two types of source noises have been tried out in this method, an externally added noise that was digitally generated and a noise that inherently contaminates the signals the system is trying to capture. In our cases, the UIA was used to capture nerve activity from vagus nerve where the signal was contaminated with electrocardiogram signals providing us with a well-defined inherent noise whose response could be tracked with Kalman Filter and used to estimate the transfer function of UIA. The transfer function estimation using the externally added noise did not produce good results but could be improved by means that can be explored as future direction of this project. However continuous characterization using the inherent noise, a bioelectric signal, was successful producing transfer function estimates with minimal error. Thus this thesis was successful to introduce a novel approach for system characterization using bio-signal contamination.
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Shie, Jen-Yu, and 謝鎮宇. "Universal current filter with single input and three outputs using MOCCIIs." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/60113621876246773751.
Full textAbstract:
碩士中原大學
電子工程研究所
96
A universal current-mode biquadratic filter with single input and three outputs using three multiple output second-generation current conveyors (MOCCIIs), four resistors and two grounded capacitors is presented. The filter can realize lowpass, highpass and bandpass responses, simultaneously. The notch and allpass responses can also be obtained by interconnection of relevant output currents.
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Zhou, Pei-Yang, and 周沛陽. "Universal Biquadratic Filter with One Input and Six Outputs Using DVCCs." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/94117748112862877490.
Full textAbstract:
碩士中原大學
電子工程研究所
99
In this thesis, a new voltage-mode universal biquadratic filter with one-input and six-outputs is presented. The proposed circuit use two differential voltage current conveyors (DVCCs), two grounded capacitors and four resistors and offers the following features: the realization of all the standard filter functions, that is, high-pass, band-pass, low-pass, notch, and all-pass filters, simultaneously, orthogonal control of ωo and Q, the use of only grounded capacitors, low active and passive sensitivities.
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Wang, Zhao-Ren, and 王昭仁. "Versatile High Input Impedance Voltage-Mode Three-Inputs Universal Biquadratic Filter." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/90860103971042417327.
Full textAbstract:
碩士中原大學
電子工程研究所
100
This paper presents a new high input impedance voltage-mode universal biquadratic filter with three inputs and six outputs using three plus-type differential difference current conveyors (DDCCs), two grounded capacitors, and three resistors. The proposed circuit can realize all the standard filter functions (low-pass, high-pass, band-pass, notch, and all-pass). Moreover, the circuit enjoys (i) the employment of two grounded capacitors, (ii) high input impedance and (iii) low active and passive sensitivity performance. HSPICE simulation results confirm the theoretical analysis
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Chan, Ching-Chih, and 詹敬智. "Voltage-Mode Universal Biquadratic Filter with Three Inputs Using Two DVCCs." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/91331252475129165609.
Full textAbstract:
碩士中原大學
電子工程研究所
100
This paper presents a new voltage-mode universal biquadratic filter with three inputs and one output. The proposed circuit employs two minus-type differential voltage current conveyors (DVCCs), two grounded capacitors and two resistors can offer the following features: realization of all the standard filter functions, that is, high-pass, band-pass, low-pass, notch, and all-pass filters, no requirements for component matching condition, the use of only grounded capacitors and low active and passive sensitivities.