Dissertations / Theses on the topic 'Horní propust'

The main idea of this thesis is a propose by designing filters in Mathcad program. This paper deals with a basic principle in filters design and these principles are implemented into the Mathcad program. In the introductory part is described aproximation which was used in Mathcad script. In the other parts of this project is described program which was created on designed filters.

The aim of the thesis is to study the possibilities of the electronic frequency ?lter com- posed of active elements operating in current mode. The main opportunities lie in the change control parameters, most are marginal or quality factor frequency. As the active elements are considered especially CC (Current Convejor), controllable current ampli?er DACA (Digitally Adjustable Current Ampli?er) or combination with the current tracker MO-CF (Multiple Output Current Follower). Another part will focus on the management of the above parameters using digital potentiometers and choosing the appropriate ?lter structure. The ?nal task was to digital control parameters using a PC and measuring its properties.

This Master's thesis deals with pseudo-differential frequency higher order filters working in voltage mode. The thesis deals with the description of frequency filters, their types and applications. Follows an analysis of differential and pseudo-differential transmissions. Next part contains a description of used active elements (conveyors) at thesis (CCII, DVCC, DDCC, UCC). In the last part the thesis is devoted to the own design of the pseudo-differential filter. Design functionality is verified by experimental simulation.

This thesis deals with concept of universal frequency filter by application of a switched-capacitor functional block. The concept is based on the theory of switched-capacitor circuits and the theory of a design of classical frequency filters. The printed circuit board was designed based on the filter connection developed by using a software Eagle. The filter was implemented as a laboratory product. This product has been revitalized and the frequency response of all types of filters has been measured. The measured parameters were compared with the parameters set out in the technical documentation of functional block.

Within modern frequency structures, the filter frequency region of up to 10 MHz constitutes a promising research topic that currently attracts intensive attention of specialists interested in the problem. The main reason of this fact consists in that the rapid development of modern technology allows the production of innovated structures of the analog frequency filters required in the defined band. In this context, however, it is also necessary to refine the methods applied in the synthesis and optimization of these structures; such improvement should be carried out with respect to fundamental properties and usability of today's active elements (operational amplifiers with voltage feedback whose Gain Bandwidth Product ranges within units of GHz, operational amplifiers with current feedback, conveyors, transimpedance operational amplifiers). In this thesis, active blocks of synthesis inductors (SIs) and frequency dependent negative resistors (FDNRs) are examined in detail, and the author provides novel formulas to define the basic parameters of the dual circuits. Due emphasis was placed on optimizing the basic building blocks of the second order and defining the variation of their properties caused by the addition of modern active elements. The blocks were analyzed and modified in view of their possible use in higher-order circuits. For active filters of a higher order, simulations were performed to indicate the actual sensitivity of the cascade and non-cascade ARC structures. The following phase of the research comprised mainly the designing of several filters, and this activity was further completed with the verification of the methodology for the synthesis and optimization of higher-order loss ladder filters with modern active blocks. Special attention was paid also to the methods enabling the optimization of such filters, which are invariably based on RLC prototypes. In order to verify the theoretical conclusions, the author materialized a large number of sample optimized filters and measured their parameters. The closing section of the thesis describes the use of the filters in specific applications.

This thesis deals with fully differential and pseudo-differential frequency filters. Significant emphasis is placed on the characteristics of common-mode signal. Further, the text deals with the design issue of fully-differential structure and transformation of non-differential to pseudo-differential structures. In the thesis one non-differential structure, one fully-differential and three pseudo-differential structures are proposed, one of them working in current mode. The thesis also describes the analysis from the perspective of non-ideal properties of the active element of two circuit solutions, which is trying to find the optimal solution. In each case, functionality of new solutions is verified by simulations and in several cases also by experimental measurement.

This master’s thesis describes the design of the frequency filters by the help of the graph of the signal flows. There are defined by modern components like GVC (Generalized Voltage Conveyor), GCC (Generalized Current Conveyor), CF (Current Follower), DO-CF (Dual-Output Current Follower), OTA (Operational Transconductance Amplifier), BOTA (Ballanced Operational Transconductance Amplifier) and CFTA (Current Follower Transconductance Amplifier), the graphs of the signal flows, which describe their activity in the thesis. In the other part of the thesis is illustrated the procedure of the design of the frequency filters by the help of the graphs of the signal flows. For the concrete design was selected in the first case as the active component double output current follower and in the second case the CFTA. There are noted all designed circuits of the frequency filters also their characteristic equations in this thesis. The activity of the selected circuits was remitted to the analysis in the simulation program called PSpice. Because the active components, with which was engaged in the design of the filter which doesn’t exist in the real form, that is why the UCC, which is sufficing for attestation of the function of the circuit, was used for the simulation. The simulation was implemented in the frequency range 10 Hz to 10 MHz.

Disertační práce se zabývá syntézou a analýzou nových obvodových struktur neceločíselného (fraktálního) řádu s řiditelnými parametry. Hlavní cíl této práce je návrh nových řešení filtračních struktur fraktálního řádu v proudovém módu, emulátorů prvků fraktálního řádu a také oscilátorů. Práce obsahuje návrh tří emulátorů pasivního prvku fraktálního řádu, tři filtrační struktury a dva oscilátory navržené na základě využití pasivního prvku fraktálního řádu v jejich obvodové struktuře a dvě obecné koncepce filtrů fraktálního řádu založené na využití aproximace přenosové funkce fraktálního řádu. Na základě obecných koncepcí jsou v práci navrženy filtry fraktálního řádu typu dolní a horní propust. Díky aktivním prvkům s přeladitelnými parametry, které jsou užity v obvodových strukturách je zajištěna řiditelnost řádu filtru, jeho pólového kmitočtu a některých případech i činitele jakosti. Vlastnosti všech zapojení jsou ověřeny počítačovými simulacemi za pomoci behavioralních simulačních modelů aktivních prvků. Některé z uvedených obvodů byly realizovány na DPS a jejich vlastnosti ověřeny experimentálním měřením.

This thesis is focused on behavioral modelling of active elements with independent multi-parameter electronic control using comercially available components. In a first part of the thesis, CVDIBA, CVDOBA, CVCC and OC elements are discussed. The functionality is verified by simulations using OrCAD PSpice. Used components are diamond transistor OPA860, variable gain amplifier LMH6505, differencing amplifier AD830, low distortion differential driver AD8138, current conveyor EL2082 and current mode four quadrant multiplier EL4083. Four active elements are further built on PCB and measured. Some applications like low pass filter, high pass filter, all pass filter and reconfigurable filter.

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.

The diplomma thesis is dealing with possibilities of Signal to noise ratio measurement by method, which is based on direct measurement. It is chosen the most suitable method – signal and noise separation to two different parallel signal branches, where is measured signal strength in one branch and root mean square value in the other. The thesis is consisted of a concept of detail block scheme of Signal to noise ratio meter, which was designed in terms of theoretical knowledge. Particular functional blocks were circuit-designed, the active and passive parts were chosen and their function were described. There were made simulation and displayed input and output time flows. There is designed the whole connection of engineered Signal to noise ratio meter in the last part of my thesis. The double-sided board of printed circuit is contained too. It was created simple programme for supervisor micro-processor. Thereby were constructed complete bases for realization.

La mia tesi consiste in una proposta di sottotitolazione di un documentario slovacco-ungherese di circa un'ora e un quarto intitolato "Felvidék - Horná Zem" della regista documentarista Vladislava Plančíková. La sottotitolazione è realizzata sulla base di uno script dei dialoghi del documentario in slovacco forniti dalla documentarista dopo uno studio approfondito della branca della traduzione audiovisiva e in particolare delle tecniche legate alla sottotitolazione. Il documentario fa luce su alcune vicende storiche accadute lungo il confine meridionale della Slovacchia e quello settentrionale dell'Ungheria, la terra di Felvidék - Horná Zem, nel periodo appena successivo alla Seconda guerra mondiale e vede come protagoniste le minoranze etniche slovacche e ungheresi nei due Stati. Il documentario alterna filmati storici a interviste condotte dalla stessa Vladislava Plančíková, lei stessa slovacca di etnia ungherese, a persone di entrambe le minoranze etniche che hanno vissuto sulla propria pelle quel periodo storico delicato in cui Cecoslovacchia e Ungheria costrinsero decine di migliaia di persone ad uno "scambio" forzato tra minoranze delle rispettive popolazioni e spesso ricorrendo alla deportazione, in ragione di una politica di "rimpatrio". Così le minoranze slovacche in Ungheria vennero trasferite in Cecoslovacchia mentre le minoranze ungheresi in Cecoslovacchia vennero trasferite in Ungheria e in Boemia. Il filo conduttore del documentario infatti è la storia della famiglia della regista del film, anch'essa vittima di questi programmi di trasferimento. Per comprendere le circostanze del documentario, la tesi dedica ampio spazio alle vicende storiche che lo interessano e lo circondano, seguono una parte dedicata alle differenze salienti della lingua slovacca e quella italiana, alla teoria della traduzione audiovisiva ed infine la parte più consistente della tesi elenca con l'ausilio di esempi i principali problemi traduttivi e metodi di risoluzione.

En el IV capitulo resultados y discusión se ha procedido a desarrollar el objetivo general, lo cual es diseñar y proponer un modelo de gestión administrativa para el Restaurante El Horno, consecuentemente los objetivos específicos que fueron identificar los procesos claves y sus interacciones y analizar la gestión del restaurante, para llegar a la discusión que se ha organizado en base a resultados-objetivos-hipótesis-problema. En el V capítulo se abarcó la implementación de la gestión administrativa, donde se presentó la propuesta de mejora para la empresa. Finalmente se concluye que el modelo de gestión con una visión sistémica, de acuerdo a la hipótesis resulta factible, de tal forma que su trabajo en conjunto genera eficiencia, en todas sus áreas.

En el IV capitulo resultados y discusión se ha procedido a desarrollar el objetivo general, lo cual es diseñar y proponer un modelo de gestión administrativa para el Restaurante El Horno, consecuentemente los objetivos específicos que fueron identificar los procesos claves y sus interacciones y analizar la gestión del restaurante, para llegar a la discusión que se ha organizado en base a resultados-objetivos-hipótesis-problema. En el V capítulo se abarcó la implementación de la gestión administrativa, donde se presentó la propuesta de mejora para la empresa. Finalmente se concluye que el modelo de gestión con una visión sistémica, de acuerdo a la hipótesis resulta factible, de tal forma que su trabajo en conjunto genera eficiencia, en todas sus áreas.
Tesis

Relatório de estágio de mestrado em Ensino de Música
O presente relatório foi elaborado no âmbito do Estágio Profissional do Mestrado em Ensino de Música da Universidade do Minho e reflete a Intervenção Pedagógica realizada durante o ano letivo 2018/2019, no Conservatório de Música Calouste Gulbenkian de Braga, nos Grupos de Recrutamento M20 – Trompa e M32 – Conjuntos Instrumentais. Tendo em conta a importância do aquecimento na aprendizagem e prática profissional na trompa, constatando-se uma lacuna nos materiais pedagógicos para a formação inicial neste domínio, partindo das necessidades aferidas na observação de aulas e das considerações recolhidas num inquérito administrado a 11 docentes de instrumentos de metal, foi elaborado e implementado na Intervenção Pedagógico um recurso didático designado Semanal do Trompinhas, dirigido a alunos de trompa que frequentam até o 2ºciclo do ensino básico. O Semanal do Trompinhas é um manual de aquecimento diário que contempla seis exercícios (um para cada dia, de segunda-feira, a sábado) para cada um dos elementos técnicos (respiração, bocal, flexibilidade, escalas), em cada um dos três níveis de dificuldade contemplados (iniciação, intermédio, avançado), perfazendo um total de 72 exercícios. O manual foi aplicado na Intervenção Pedagógica, tendo os resultados obtidos demonstrado que os alunos conseguem assimilar com bons resultados as competências necessárias para a aprendizagem do instrumento de uma forma eficaz. O presente trabalho incide no projeto de intervenção supervisionada e consiste na realização do “Semanal do Trompinhas” para estudantes de trompa até ao 2º ciclo, sendo construídos e implementados exercícios que pretendem desenvolver competências de aquecimento. Os resultados obtidos durante o estudo indicam que com os exercícios testados, os alunos conseguem assimilar com bons resultados as competências necessárias para a aprendizagem do instrumento de uma forma eficaz.
This report was prepared within the framework of Pedagogical Intervention conducted during the academic year 2018/2019, at the Calouste Gulbenkian Conservatory of Music in Braga, in the Recruitment Groups M20 – French Horn and M32 - Instrumental Sets. Considering the importance of warm up in the learning and professional practice in the French Horn, there was a gap in the pedagogical materials for initial training in this field, based on the needs assessed in class observation and the considerations gathered in a survey administered to 11 teachers of brass instruments, was designed and implemented in the Pedagogic Intervention a didactic resource called Trompinhas Weekly, directed to pupils of the horn that attend until the 2nd cycle of basic education. The Trompinhas Weekly is a dynamic warm-up manual that includes six exercises (one for each day from Monday to Saturday), for each of the technical elements (breathing, flexibility, mouthpiece, scales), at each of the three levels (initial, intermediate, advanced), making a total of 72 exercises. The manual was applied in Pedagogical Intervention, and the results obtained showed that students are able to assimilate with good results the skills necessary to learn the instrument in an effective way. The present work focuses on the project of supervised intervention and consists of the realization of the "Trompinhas Weekly" for french horn students up to the 2nd cycle, being constructed and implemented exercises that intend to develop heating skills. The results obtained during the study indicate that with the exercises tested, the students are able to assimilate with good results the skills necessary to learn the instrument in an effective way.

Relatório de estágio de mestrado em Ensino de Música
Este Relatório de Estágio aborda o Estágio Profissional realizado no Conservatório de Música de Barcelos no ano letivo 2017/2018, nos Grupos de Recrutamento M20 (Trompa) e M32 (Classes de Conjunto). Este estágio inseriu-se no âmbito do Mestrado em Ensino de Música da Universidade do Minho. A intervenção realizada teve como principal objetivo a melhoria da performance musical dos alunos de trompa através do aperfeiçoamento da sua técnica de flexibilidade, contribuindo com sugestões pedagógicas e despoletando o espírito crítico dos alunos. Numa primeira fase, foi feita a observação das aulas lecionadas pelos professores cooperantes em que se identificaram as principais dificuldades dos alunos, relacionadas com a insuficiência de um trabalho técnico adequado. Foi realizada uma pesquisa bibliográfica, refletida no primeiro capítulo deste relatório, que serviu para um enquadramento teórico relativo ao tema da flexibilidade. Numa segunda fase, após a caracterização do contexto de estágio, foram elaboradas as planificações das aulas da Prática de Ensino Supervisionada, recorrendo a um conjunto de técnicas com vista a desenvolver as capacidades físicas dos alunos, nomeadamente ao nível da flexibilidade. Por último, foram lecionadas as aulas previstas, submetidas a uma posterior análise para averiguação dos resultados obtidos. Os instrumentos de recolha de dados utilizados consistiram em relatórios e grelhas de observação de aulas, um questionário realizado aos alunos, várias pesquisas bibliográficas e conversas informais com os professores cooperantes. Os resultados observados foram satisfatórios, verificando-se um aumento da flexibilidade dos alunos, que se traduziu numa melhoria da sua performance musical. O impacto da aplicação desta metodologia resultou no desenvolvimento técnico, musical e pessoal dos alunos, elevando o seu gosto e fascínio pelo instrumento. Não se pode concluir que todos os alunos alcançaram um nível de excelência, mas sim que todos eles melhoraram a sua qualidade de performance e aumentaram a sua motivação.
This report covers the Professional Internship held at the Conservatório de Música de Barcelos in the academic year of 2017/2018, in the Recruitment Groups M20 (Horn) e M32 (Instrumental Ensemble). This internship was part of the Master's Degree in Music Teaching at the University of Minho. The main objective of the intervention was to improve the musical performance of the students through the improvement of their flexibility technique, contributing with pedagogical suggestions and triggering the critical spirit of the students. In a first phase, an observation of the classes taught by the cooperating teachers was made in which the main difficulties of the students were identified, related to the insufficiency of an adequate technical work. A bibliographical research was carried out, reflected in the first chapter of this report, which served as a theoretical framework on the topic of flexibility. In a second phase, after the stage context was characterized, the planning of Supervised Teaching Practice classes was elaborated using a set of techniques to develop students' physical abilities, namely in terms of flexibility. Finally, the lectures were given, subject to a subsequent analysis to verify the results obtained. The data collection instruments used consisted of reports and classroom observation grids, a questionnaire to students, several bibliographical researches and informal conversations with the cooperating teachers. The results observed were satisfactory and there was an increase in the students' flexibility, which resulted in an improvement in their musical performance. The impact of the application of this methodology resulted in the technical, musical and personal development of the students, raising their taste and fascination for the instrument. It can not be concluded that all students achieved a level of excellence but rather that they all improved their performance quality and increased their motivation.