Academic literature on the topic 'Mechaninė sistema'
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Journal articles on the topic "Mechaninė sistema"
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Illidge-Araujo, JorgeMario, Jorge Luis Chacon Velasco, Angel José Chacon Velasco, and Carlos A. Romero Piehadraita. "Diseño y simulación de un sistema pico-hydro para la generación de energía eléctrica en zonas rurales, mediante un software de mecánica de fluidos computacional." Revista UIS Ingenierías 19, no. 1 (January 1, 2020): 155–70. http://dx.doi.org/10.18273/revuin.v19n1-2020015.
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En este artículo se presenta un procedimiento para el diseño de todos los componentes de un sistema pico-hydro, a partir de una turbina hidráulica tipo hélice de acuerdo a las condiciones específicas del potencial del agua para un sitio estimado de operación basado en un análisis teórico y técnico. Para este fin, las principales características del rodete se determinan por medio de correlaciones estadísticas de diferentes autores que han estudiado turbinas instaladas alrededor del mundo, y definiendorestricciones para el diseño tales como el salto de la turbina, el caudal nominal y la potencia requerida, a partir de los datos mencionados anteriormente, se establece el valor de todas las variables relacionadas con el comportamiento del fluido en su paso por el rodete y a partir del valor de dichas variables y de la geometría establecida para el rodete, se procede a determinar la geometría y las especificaciones de los demás componentes del sistema pico-hydro tales como la cámara espiral, el tubo de aspiración, el generador y el distribuidor, para el cual se estudiaron dos tipos que son un distribuidor de entrada axial del fluido y otro de entrada radial del fluido con respecto al eje de rotación de la turbina. Para la verificación del diseño y de los resultados esperados, se utiliza una herramienta moderna de ingeniería como lo es la dinámica de fluidos computacional (CFD), en especial el componente (CFX) para predecir el flujo y el rendimiento que puede arrojar el sistema diseñado. Por último,se procede a realizar un análisis técnico-económico para estudiar la viabilidad de implementar este tipo de sistemas en una zona rural.El diseño del presente sistema pico-hydro y el aporte de la dinámica de fluidos computacional CFD, puede ser una alternativa viable para suplir las demandas de energía eléctrica de una zona rural en Colombia que no cuente con este servicio por parte de las redes de suministro encargadas de esta función
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Wastia, Ryan Muthiara. "MEKANISME IMPEACHMENT DI NEGARA DENGAN SISTEM PRESIDENSIAL: STUDI PERBANDINGAN MEKANISME IMPEACHMENT DI INDONESIA DAN KOREA SELATAN." Mimbar Hukum - Fakultas Hukum Universitas Gadjah Mada 31, no. 2 (June 3, 2019): 237. http://dx.doi.org/10.22146/jmh.39068.
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In the development of the government sistem, there are semi-presidential systems which are different from presidential and parliamentary systems. The difference is in the case of the presence of the President and Prime Minister as a parliamentary sistem but the mechanism for dismissing the President resembles the impeachment in the presidential systems. This research was conducted to see how the impeachment mechanism compares in countries with presidential sistems, especially Indonesia and in countries with a semi-presidential sistem, namely South Korea. The author finds that there are differences between the impeachment mechanisms in Indonesia and South Korea in the process and reasons for the termination of the President. This can be an input for the mechanism in Indonesia to focus more on legal mechanisms without a political mechanism in the MPR.
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Tsypin, M. M. "Classical mechanics of one-dimensional nonlinear systems." Uspekhi Fizicheskih Nauk 159, no. 10 (1989): 395. http://dx.doi.org/10.3367/ufnr.0159.198910k.0395.
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Pradipta, Mahadika Bayu, and Tutus Praningki. "Sistem Pendukung Keputusan Menentukan Mekanik Terbaik Menggunakan Metode Simple Additive Weighting." CAHAYAtech 7, no. 2 (July 8, 2019): 135. http://dx.doi.org/10.47047/ct.v7i2.100.
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Ahass Aries Sentosa Motor Kediri is one of the leading motorcycle dealers and workshops in Kediri. One of the key factors in getting a well-known predicate from consumers is the mechanical quality factor, especially in motorcycle service in the workshop Ahass Aries Sentosa Motor Kediri. The use of a decision support system is very helpful in determining the best mechanics, and is accompanied by the method of Simple Additive Weighting (SAW), this method can complete the research by looking for weight values for each attribute, then ranking process that will determine the optimal alternative, namely the entitled mechanics got the title as the best mechanic. With the decision support system with Simple Additive Weighting (SAW) method applied to this problem because it is able to select the best alternative from a number of alternatives. In this case it will be easier to monitor, select and determine the mechanics who are entitled to the title as the best mechanic.
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Irawanti, Setiasih, Aneka Prawesti Suka, Indartik Indartik, Fitri Nurfatriani, and Nunung Parlinah. "PENGEMBANGAN SISTEM PENDANAAN REDD+ BERDASARKAN PEMBELAJARAN DARI MEKANISME PEMBAYARAN JASA LINGKUNGAN." Jurnal Penelitian Sosial dan Ekonomi Kehutanan 11, no. 4 (December 31, 2014): 295–307. http://dx.doi.org/10.20886/jpsek.2014.11.4.295-307.
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Sánchez-Muñoz, L., O. Rover, J. Sanz, and J. García-Guinea. "Mecanismos de construcción-destrucción de patrones macroestructurales en microclimas como sistemas complejos." Boletín de la Sociedad Española de Cerámica y Vidrio 45, no. 5 (October 30, 2006): 321–29. http://dx.doi.org/10.3989/cyv.2006.v45.i5.272.
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Sjeničić, Marta, Sandra Perić, and Dragana Marčetić. "The judiciary system and the social care system policy on contractual capacity: Overview of research conducted in the City of Belgrade." Zbornik radova Pravnog fakulteta Nis 59, no. 88 (2020): 135–56. http://dx.doi.org/10.5937/zrpfn0-27813.
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Contractual capacity is the starting point for exercising most human rights. It entails the capacity to sign contracts and enter into the legal transactions, and it is a gateway to exercising a range of labour, voting, family, property, succession (etc.) rights envisaged by the law. The full deprivation of contractual capacity leads to the deprivation of most other capacities. Thus, a person is de iure and de facto excluded from societal life. The mechanism for deprivation of contractual capacity exists in both domestic and foreign jurisprudence, as a way of protecting individual rights. The deprivation of contractual capacity in adults is applicable when the competent authority determines one's mental or intellectual impairment. In the past, the prevailing approach to establishing such disability was the medical approach, which is largely the same today, while the social model is seldom applied. The issue of protection of the right to contractual capacity has seldom been comprehensively analyzed, either from the standpoint of social care services or from the standpoint of jurisprudence. Yet, they are both equally relevant in the process of assessing contractual capacity. This paper presents the results of research conducted in social care centers and courts in the territory of the City of Belgrade (Serbia). The research was aimed at establishing whether the status and position of social care service users has improved after introducing the legal mechanism authorizing the courts to assess (within a specific time limit) if there are reasons for continuing the imposed measure of deprivation of contractual capacity, as well as to analyze the major reasons for initiating the legal action for reassessment of contractual capacity.
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Aguirre-Téllez, Cristian Andrés, and José Barba-Ortega. "Breve argumentación didáctica de la mecánica cuántica de muchos cuerpos." Respuestas 22, no. 1 (January 1, 2017): 29. http://dx.doi.org/10.22463/0122820x.817.
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El problema general en mecánica cuántica está basado en la solución de una ecuación en valores propios de un operador dado (en una representación adecuada), generalmente dicho operador es el Hamiltoniano que da cuenta de la interacción energética (salvo que dependa del tiempo) del sistema en cuestión. La solución de la ecuación de Schrödinger permite escribir el comportamiento dinámico del sistema sometido a ciertas restricciones. Sin embargo, la solución analítica de esta ecuación es viable solo en sistemas simples, cuando el sistema se describe desde la interacción de muchas partículas (problema electrónico-base de la construcción de sistemas cuánticos complejos aplicable a la descripción de moléculas, sólidos y sistemas cuánticos interactuantes en general.) la solución de la ecuación de Schrödinger del sistema no se puede realizar vía método analítico; con lo cual existe una forma más global de enfrentar dicho problema, el método auto consistente; mediante el cual se puede solucionar sistemas complejos de muchos cuerpos. Es así que en el presente paper presentamos una comparación entre el sistema auto consistente y algunas variantes que existen, con el método analítico en sistemas demuchos cuerpos y como opera dicho método, esto aplicado a un problema de dos cuerpos con interacción Coulombiana, ya que este problema presenta solución analítica y ha sido extensamente estudiado; esto con la finalidad de que los estudiantes interesados en la materia comprendan como se abordan problemas vía métodos auto consistentes y como opera este método, ya que en la literatura pocas veces se presenta el algoritmo de solución mediante este método.Palabras clave: Mecánica Cuántica, Método Auto-Consistente, problema de dos cuerpos.AbstractThe general problem in quantum mechanics is based on the solution of an equation in eigenvalues of a given operator (in a suitable representation), generally said operator is the Hamiltonian that accounts for the energy interaction (unless it depends on the time) of the system in question. The solution of the Schrodinger equation allows writing the dynamic behavior of the system subject to certain restrictions. however, the analytical solution of this equation is feasible only in simple systems, when the system is described from the interaction of many particles (electronic problem- basis of the construction of complex quantum systems applicable to the description of molecules, solids and interacting quantum systems in general.), the solution of the Schrödinger equation of the system can´t be performed via analytical method; with which there is a more global way of facing this problem, the self-consistent method; through which complex systems of many bodies can be solved. thus, in the present paper we present a comparison between the self-consistent system and some variants that exist, with the analytical method in systems of many bodies and how this method operates, this applied to a problem of two bodies with Coulombian interaction, since this problem presents an analytical solution and has been extensively studied; this in order that students interested in the subject understand how problems are addressed through self-consistent methods and how this method operates, since in the literature rarely the solution algorithm is presented by this method.Keywords: Quantum mechanics, Self Consistent Field, Two body problem.
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Pavelko, Igor, and Vitalijs Pavelko. "DYNAMIC PROPERTIES OF AIRCRAFT COMPONENTS AT REAL CONSTRAINTS." Aviation 12, no. 4 (December 31, 2008): 113–17. http://dx.doi.org/10.3846/1648-7788.2008.12.113-117.
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The basic purpose of this article is consideration of the problems connected with the application of a method of concentrated weights in the tasks of mechanical system dynamics with non‐classic internal and external constraints. The method of concentrated weights is a convenient method to analyse the dynamic properties of elastic mechanical systems. It has relative simplicity of definition of the parameters of the equivalent discrete system and clearness of computing algorithms and provides comprehensible accuracy of definition of the lowest natural frequencies. A doubtless advantage of the method is its convenience of modelling non‐classic constraints of fastening and internal constraints between elements of complex systems. Such problems arise when making decisions about the practice tasks of the analysis of the dynamics of real systems. The method is used for the analysis of vibrations of a beam with variable parameters at the presence of elastic supporting of the beam and attached additional concentrated weight. Santrauka Pagrindinis straipsnio tikslas – analizuoti atskiras problemas, susijusias su koncentruotų masių metodu mechaninių sistemų dinamikos uždaviniuose su neklasikiniais vidiniais ir išoriniais ryšiais. Koncentruotų masių metodu yra patogu analizuoti tamprių mechaninių sistemų dinamines savybes. Šio metodo savybės yra tokios: ekvivalentinės diskrečios sistemos parametrų paprastas nustatymas; aiškus skaičiavimo algoritmas; pakankamai tikslus laisvųjų virpesių žemo dažnio nustatymas. Modeliuojant neklasikinius vidinius ir išorinius elementų ryšius sudėtingoje mechaninėje sistemoje išryškėja neabejotini metodo privalumai. Tokios problemos iškyla analizuojant realias dinamines sistemas. Šių tyrimų metu metodas buvo panaudotas analizuoti sraigtasparnio sijos virpesius, kai kinta tampraus įtvirtinimo ir tampriai pritvirtintos koncentruotos masės parametrai.
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Rianto, Rianto. "SISTEM PAKAR DIAGNOSA PERMASALAHAN PADA PESAWAT CESSNA GRAND CARAVAN 208B MENGGUNAKAN METODE BACKWARD CHAINING." Angkasa: Jurnal Ilmiah Bidang Teknologi 8, no. 2 (August 25, 2017): 129. http://dx.doi.org/10.28989/angkasa.v8i2.126.
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Success of an aircraft mechanic is to find a problem and solve it. Analysis of the problems in the Cessna Grand Caravan 208B needed someone expert in the field of aircraft mechanics. In this research expert system is used to provide easily diagnose problems with the Cessna Grand Caravan 208B by adopting the knowledge possessed from a professional mechanic, then take it into the software, that will be called by the expert system. Backward Chaining method used to obtain the results as expected by a professional mechanic. Search tecniques used to supplement the backward chaining method is a Best-First Search technique. Best-First Search Techniques is a search technique to that used to perform a search based on the knowledge gained to conduct a proper solution where it is located.
Dissertations / Theses on the topic "Mechaninė sistema"
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Kiseliauskaitė, Eglė. "Savaime ir priverstinai virpanti procesų transformavimo sistema." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2004. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2004~D_20040604_130419-58999.
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The differential equations are often used in practice for making different mathematical models of mechanical systems and they are the best help for modelling. The flow, coming around elastic mechanical system, when there are some conditions, awakes the auto-oscillations of it. At my work I onquire the change of auto-oscillations into the electrical signal. If we want to reach it, we must give for mechanical system an extra stimulation by electric network. The purpose of my work - inquire simplification model of this made system; area of existence synchronic processes, when we have relaxed and forced oscillations; to analyse different trajectories of different types this differential equation; to find spectral charakteristics. The analytical and graphical results were forthcoming, let uncover some steady treatments' and their surroundings' attributes of pending system.
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Puiša, Romanas. "Adaptyvieji stochastiniai algoritmai mechaninių sistemų elementams optimizuoti." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20051102_105606-30576.
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Šiame darbe nagrinėjamas stochastinių algoritmų vystymas ir taikymas mechaninių sistemų elementų geometrijai optimizuoti. Inžinerinėje praktikoje geometrijos optimizacijos uždaviniai dažniausiai yra netiesiniai, turintys triukšmo komponenčių, diskretiniai – išreikšti skaičių eilutėmis, o tikslo funkcija ir apribojimai gali būti netolydūs. Jiems spręsti geriausiai tinka stochastiniai metodai. Tai įrodo daugybės sėkmingų stochastinių algoritmų (pvz., evoliucinių algoritmų) taikymas tokiems optimizacijos uždaviniams išspręsti, kuriems deterministiniai metodai (pvz., gradiento metodai) beveik netinka. Inžinerinėje praktikoje mechaninių sistemų elementų geometrija optimizuojama ją parametrizuojant – apibrėžiant optimizacijos kintamuosius ir taikant optimizacijos algoritmą – randant optimalias šių kintamųjų reikšmes. Geometrijos parametrizacijos būdo pasirinkimas lemia optimizacijos uždavinio sprendimo kokybę ir daro įtaką optimizacijos algortimo pasirinkimui. Todėl efektyvių parametrizacijos ir optimizacijos metodų plėtotė yra du lygiavertės svarbos uždaviniai, sprendžiami mechanikos inžinerijoje. Šiame darbe nagrinėjama tik optimizacijos metodų plėtra, kai optimizacijos kintamieji yra realieji – tolydūs skaičiai.The thesis addresses the development of stochastic algorithms to mechanical-structure optimisation problems. Since structure optimisation problems encountered in mechanical engineering are usually highly nonlinear, nosy, and discrete, stochastic algorithms represent reasonable optimisation methods for them. This evidence is justified by many successful applications of stochastic algorithms (e.g. evolutionary algorithms) on those mechanical engineering problems, where deterministic methods are hardly applicable. This work embodies four new original approaches concerning about (1) the theoretical measures of the algorithmic efficiency, (2) the further development of existing and (3) the design of new stochastic algorithms. Thus, the first approach aims at predicting the run-time efficiency of evolutionary algorithms through the calculation of higher-order statistical moments, namely the skewness and the kurtosis, and the use of a new proposed statistic–the best fitness frequency. The performed statistical analysis is based on two hypothesises: (1) a population, considered as a distribution of fitness values, varies over run-time by changing its shape, and (2) such a variance of the fitness-distribution shape reflects fitness landscape regions. The optimisation results performed on some theoretical test functions support the stated hypotheses. The presented statistical efficiency analysis can be used only in population-based stochastic algorithms. The following two approaches... [to full text]
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Salgueiro, Andréa Nemes. "Aspectos da decoerência em sistemas quânticos." Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/43/43131/tde-02122013-144041/.
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Neste trabalho apresentamos um estudo da dinâmica de subsistemas quânticos dando ênfase ao fenômeno da decoerência. Em particular, estudamos os efeitos da decoerência num sistema de dois níveis acoplado a um outro sistema cujo espectro de energia é um contínuo no contexto do fenômeno quântico de tunelamento. Investigamos também aspectos da relação entre a descrição do sistema de dois níveis e a descrição do modelo linear na aproximação de onda girante em termos de uma equação mestra na aproximação de Born-Markov e a dinâmica exata destes dois subsistemas. Estudamos também o experimento proposto por L. Davidovich e colaboradores para medir a decoerência de superposições mesoscópicas de estados coerentes dentro do contexto da computação quântica. Este experimento pode ser re interpretado como um computador quântico capaz de solucionar o problema de Deutsch. O grande problema deste experimento, do ponto de vista da computação quântica, é a presença da decoerência. Esta decoerência provoca o aparecimento de erros no resultado final. Assim, nós mostramos uma maneira de reduzi-la, diminuindo assim os eventuais erros que possam aparecer. Finalmente, mostramos através de dois exemplos a relação entre o efeito Zeno e a decoerência.We study the quantum decoherence process in different contexts. In particular, we study decoherence effects in the dynamics of a two-level system coupled to another system which has a continuous energy spectrum. We also investigate when the master equation description, in a Born Markov approximation reproduces the exact solution. We extend this investigation to the model which describes the interaction between a harmonic oscillator and a thermal bath of harmonic oscillators in the rotating wave approximation. We also study the two atom correlation scheme originally proposed by Davidovich, Brune, Raimond and Haroche for measuring the decoherence of a mesoscopic superposition of coherent states of a QED cavity in the context of quantum computation. We show that this experiment is equivalent to a quantum computer solving Deutsch\'s problem. We find a way to reduce the errors due to decoherence. Finally, we show how the Zeno effect is related to the decoherence process.
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Mokarzel, Sonia Geraij. "Decoerência e Dissipação de Sistemas Quânticos: Técnicas e Aplicações." Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/43/43131/tde-02122013-185457/.
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Desenvolvemos no presente trabalho um tratamento perturbativo para a matriz densidade reduzida de forma similar à regra áurea de Fermi para espalhamento. Aplicamos a teoria a vários exemplos e em particular reproduzimos os resultados experimentais obtidos no laboratório Kastler Brossel e obtivemos uma relação entre os tempos característicos de dissipação e decoerência. Por outro lado, desenvolvemos um modelo simples para duas moléculas interagindo com um reservatório. Mostramos resultados surpreendentes quando temos mais que dois subsistemas interagindo: no caso particular em que as moléculas estão num estado inicial coerente, bombardeadas por fontes de mesma intensidade, o estado assintótico apresenta urna concentração de energia no modo de menor frequência. Este resultado dá suporte a um modelo fenomenológico de sistemas biológicos onde a condensação de Bose- Einstein é produzida e o estado final também exibe uma concentração de energia no modo de frequência mais baixa.In the present work we developed a perturbative treatment of reduced density matrices which is similar in spirit to Fermi\'s Golden Rule for scattering. We applied the theory to several e- xamples and in particular reproduced the results obtained in the laboratory Kastler Brossel experiment quantifying the relation between decoherence and dissipation characteristic times. On the other hand we developed a simple model for two molecules interacting through a re- servoir. We show that rather surprising results may arise when we have more than two subsys- tems in interaction: in the particular case where both molecules are initially in coherent states, if they are pumped with the same strength, the asymptotic state shows a concentraction of energy on the mode with smallest frequency. This result gives support to a phenomenological model for biological systems where a Bose- Einstein condensation is predicted and the final state also exhibits a concentration of energy in the lowest frequency mode.
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Clerice, Guilherme Augusto Marabezzi. "Localização de descargas parciais em transformadores de potência imersos em óleo mineral por meio de cápsulas piezelétricas de baixo custo e sistemas inteligentes /." Bauru, 2014. http://hdl.handle.net/11449/122124.
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Orientador: José Alfredo Covolan UlsonBanca: Danilo Hernane Spatti
Banca: Fabrício Guimarães Baptista
Resumo: Os transformadores de potência são equipamentos de alto custo e suma importância no sistema elétrico, em virtude de que o seu mau funcionamento impacta diretamente a qualidade da energia elétrica fornecida aos consumidores. Portanto, sistemas de diagnósticos de falhas ocorridas nesses equipamentos podem auxiliar, tanto em manutenções corretivas, quanto preventivas. Este trabalho oferece um método eficiente para localização de descargas parciais em transformadores de potência que utilizam óleo mineral no seu interior, sem a necessidade de métodos intrusivos de diagnóstico. A localização da descarga parcial gerada no interior do transformador é feita por meio de cápsulas piezelétricas de baixo custo, fixadas externamente na caixa do transformador de potência, bem como, através do uso de sistemas inteligentes como redes neurais artificiais sem a utilização do TOA (time of arrival) exigindo triangulação do sinal, que demanda alta complexidade computacional, assim fornecendo as coordenadas de onde se originou a descarga parcial. Neste contexto, a redução do tempo de manutenção ou possível predição da interrupção do serviço desse equipamento faz com que o fornecimento de energia seja feito com melhor qualidade, minimizando os impactos sofridos pelos consumidores pela descontinuidade do serviço prestado pelas concessionárias de energia elétrica
Abstract: The power transformer are equipments with high cost but paramount importance in the electric system as your bad operation can directly impact on the quality of the electric energy provided to the consumers. Therefore, diagnostic systems of occurred failures on this equipment can assist even on corrective maintenance or preventive. This work offers an efficient method to locate partial discharges on the power transformers which use mineral oil inside with no need to use intrusive methods of diagnoses. The location of the partial discharge generated inside of the transformer is made via piezoeletric capsules with low cost. It is fixed externally in the box of the power transformer, as well through the use of intelligent systems as neurotic artificial networks without the use of the TOA (time of arrival) requiring the triangulation signal which demands high computational complexity, thus providing the coordinates where the partial discharge was originated. On this context, the reduction of the time of maintenance or possible prediction of interruption of the service in this equipment results that the energy supply can be made with better quality, minimizing the impacts suffered by the consumers due the discontinuity of the service made by the concessionaires of electric energy
Mestre
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Clerice, Guilherme Augusto Marabezzi [UNESP]. "Localização de descargas parciais em transformadores de potência imersos em óleo mineral por meio de cápsulas piezelétricas de baixo custo e sistemas inteligentes." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/122124.
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Os transformadores de potência são equipamentos de alto custo e suma importância no sistema elétrico, em virtude de que o seu mau funcionamento impacta diretamente a qualidade da energia elétrica fornecida aos consumidores. Portanto, sistemas de diagnósticos de falhas ocorridas nesses equipamentos podem auxiliar, tanto em manutenções corretivas, quanto preventivas. Este trabalho oferece um método eficiente para localização de descargas parciais em transformadores de potência que utilizam óleo mineral no seu interior, sem a necessidade de métodos intrusivos de diagnóstico. A localização da descarga parcial gerada no interior do transformador é feita por meio de cápsulas piezelétricas de baixo custo, fixadas externamente na caixa do transformador de potência, bem como, através do uso de sistemas inteligentes como redes neurais artificiais sem a utilização do TOA (time of arrival) exigindo triangulação do sinal, que demanda alta complexidade computacional, assim fornecendo as coordenadas de onde se originou a descarga parcial. Neste contexto, a redução do tempo de manutenção ou possível predição da interrupção do serviço desse equipamento faz com que o fornecimento de energia seja feito com melhor qualidade, minimizando os impactos sofridos pelos consumidores pela descontinuidade do serviço prestado pelas concessionárias de energia elétrica
The power transformer are equipments with high cost but paramount importance in the electric system as your bad operation can directly impact on the quality of the electric energy provided to the consumers. Therefore, diagnostic systems of occurred failures on this equipment can assist even on corrective maintenance or preventive. This work offers an efficient method to locate partial discharges on the power transformers which use mineral oil inside with no need to use intrusive methods of diagnoses. The location of the partial discharge generated inside of the transformer is made via piezoeletric capsules with low cost. It is fixed externally in the box of the power transformer, as well through the use of intelligent systems as neurotic artificial networks without the use of the TOA (time of arrival) requiring the triangulation signal which demands high computational complexity, thus providing the coordinates where the partial discharge was originated. On this context, the reduction of the time of maintenance or possible prediction of interruption of the service in this equipment results that the energy supply can be made with better quality, minimizing the impacts suffered by the consumers due the discontinuity of the service made by the concessionaires of electric energy
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Acconcia, Thiago Vaz 1991. "Caminhos ótimos degenerados em sistemas termicamente isolados." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/276953.
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Orientadores: Marcus Vinícius Segantini Bonança, Maurice de KoningDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin
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Resumo: A termodinâmica é uma teoria do calor e trabalho, a qual descreve perfeitamente os processos quase-estáticos somente. Entretanto, além dos estados de equilíbrio, nós encontramos uma ampla classe de processos operando em tempo finito. Uma meta onipresente na termodinâmica é a otimização dos processes a tempo finito através da minimização do trabalho dissipado ou trabalho em excesso. Para o oscilador harmônico paramétrico, nós derivamos uma família altamente degenerada de protocolos ótimos a tempo finito, ao longo dos quais o trabalho em excesso produzido se anula exatamente. Para isso, o sistema de interesse se mantém termicamente isolado durante todo o processo de atuação do protocolo de switching. Esses protocolos ótimos são obtidos através da teoria de resposta linear para sistemas inicialmente preparados segundo uma distribuição canônica. Para sistemas com um grau de liberdade, mostramos evidências de que esses caminhos ótimos podem também levar à conservação do invariante adiabático correspondente. Além dos resultados analíticos para os osciladores harmônicos clássico e quântico, nós apresentamos resultados numéricos para alguns exemplos anarmônicos. Finalmente, nós reformulamos os resultados anteriores quantificando-os em termos do comprimento termodinâmico para a versão quântica do sistema oscilador harmônico
Abstract: Thermodynamics is a theory of heat and work, which describes perfectly only the quasistatic processes. However, if we shift our view away from the equilibrium states, we find a wide class of processes operating in finite-time. An ubiquitous goal in thermodynamics is to optimize the finite time processes by minimizing the dissipated or excess work. For the parametric harmonic oscillator, we derive a family of degenerated finite-time optimal protocols for which the excess work during a non-equilibrium process vanishes exactly. For this, the system of interest is kept thermally isolated during the switching of a control parameter. These optimal paths are obtained within linear response for systems initially prepared in a canonical distribution. For systems with one degree of freedom, we claim that these optimal paths may also lead to the conservation of the corresponding adiabatic invariant. Besides the analytical results for both classical and quantum harmonic oscillator, we present numerical results for certain anharmonic examples. Finally, we discuss the reformulation of the latter results terms of the thermodynamic length for the quantum version of the harmonic oscillator system
Mestrado
Física
Mestre em Física
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Espinoza, Rodrigo Valério. "Sistema estabilizador da adesão de um robô escalador com rodas magnéticas." Universidade Tecnológica Federal do Paraná, 2014. http://repositorio.utfpr.edu.br/jspui/handle/1/1010.
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Agência Nacional do Petróleo, Gás Natural e Biocombustíveis (ANP); FINEP; Ministério da Ciência e Tecnologia (MCT)Este trabalho consiste no desenvolvimento de um sistema estabilizador da adesão de um robô escalador com rodas magnéticas. O projeto deste robô surge da necessidade em automatizar o processo de inspeção de tanques de armazenamento de derivados de petróleo, o qual e atualmente realizado de modo manual. O robô vem sendo desenvolvido no Laboratório de Automação e Sistemas de Controle Avençado (LASCA) da Universidade Tecnológica Federal do Paraná (UTFPR). Primeiramente foi realizada uma análise teórica completa do protótipo, englobando um estudo da estrutura do robô, seus requisitos e as análises de cinemática e dinâmica. Realizou-se então um estudo das rodas magnéticas do robô e das características do campo magnético enquanto ocorre descolamento da roda em superfícies ferromagnéticas. Os dados do campo magnético são adquiridos por meio do magnetômetro presente na unidade de navegação inercial do robô. Implementou-se então uma rede neural artificial do tipo Perceptron Multi-Camadas com o intuito de interpretar os dados do campo magnético e estimar a forca de adesão entre o robô e a superfície. Por fim a quantificação da forca de adesão e utilizada para implementar um sistema de controle de adesão para o robô escalador.
This work consists in the design of an adhesion stabilization system of a climbing robot with magnetic wheels. The robot’s design comes from the need to automatize the inspection process of industrial storage tanks for petroleum products, which is currently performed manually. The robot is being developed in the Laboratory of Automation and Advanced Control Systems (LASCA) of the Federal Technological University of Paraná (UTFPR). First, a complete a theoretical analysis of the prototype was carried out including a study of the robot’s structure, its requirements and the kinematics and dynamics analyses. Then, a study of the robot’s magnetic wheels and the characteristics of the magnetic field in the occurancy of detachment between the magnetic wheel and the ferro-magnetic surfaces was carried out. The magnetic field data is acquired through the magnetometer of the inertial measurement unit sensor of the robot. Then a multilayer perceptron artificial neural network was implemented in order to interpret the magnetic field data and estimate the adhesion force between robot and surface. Finally the adhesion force quantification is used to implement an adhesion control system for the robot.
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Pires, Rilder de Sousa. "Difusão singular em um sistema confinado." reponame:Repositório Institucional da UFC, 2013. http://www.repositorio.ufc.br/handle/riufc/13738.
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PIRES, Rilder de Sousa. Difusão singular em um sistema confinado. 2013. 64 f. Dissertação (Mestrado em Física) - Programa de Pós-Graduação em Física, Departamento de Física, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, 2013.Submitted by Edvander Pires (edvanderpires@gmail.com) on 2015-10-23T19:14:37Z No. of bitstreams: 1 2013_dis_rspires.pdf: 2524951 bytes, checksum: 2a38032e0c2de28e051d588ecd2b47f3 (MD5)
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Patterns of scale invariance, associated with power laws, are often found in nature, for instance, in the fluctuations of prices of items in stock markets and in the energy spectrum of turbulent systems. These two systems and many others that exhibit scale invariance present some common properties: they are comprised of several elements that interact in a non-linear way, are not in equilibrium, and exhibit self-organization. Scale invariance is also found in the correlations observed in the critical state of systems that present phase transitions. The concept of self-organized criticality suggests that the properties of invariance spontaneously arise in complex systems. Several models exhibit properties of self-organized critically, including invasion percolation, sand-piles and the trough model, however it is not clear what are the necessary ingredients for criticality to arise. It is known that this property appears in some non-linear diffusive systems. In this work, we introduce a confining potential in a one-dimensional diffusion model with a singular non-linearity on diffusion coefficient, and analyze how this affects in the steady state of the system. We then derive a diffusion equation and obtain a solution for stationary density profile. Our analytical solution is in good agreement with the numerical results. We also present a statistical study of the distribution of avalanches sizes in this model, and obtain profiles following power laws, what is not usually observed in other one-dimensional systems. We also investigated how these profiles vary when the confinement increases, and using finite size scaling we found a universal curve for the distribution of avalanche sizes. Our results show that the action of confinement in a one-dimensional system can yield scale invariance.
Padrões de invariância de escala, associados à leis de potência, são frequentemente observados na natureza. Alguns exemplos são: flutuações em preços de itens de bolsa de valores e outros investimentos, além do espectro de energia em sistemas turbulentos. Esses dois sistemas e vários outros que exibem invariância de escala têm propriedades em comum: compõem-se de vários elementos que interagem de forma não linear, estão fora do equilíbrio e exibem auto-organização. Invariância de escala também é encontrada nas correlações observadas no ponto crítico de sistemas que apresentam transições de fase. O conceito de criticalidade auto-organizada sugere que as propriedades de invariância emergem espontaneamente em sistema complexos. Vários modelos exibem propriedades criticamente auto-organizadas, entre eles percolação invasiva, pilhas de areia e o modelo de desníveis, no entanto, não se sabe ao certo quais os ingredientes necessários para criticalidade emergir. Sabe-se que essa propriedade se manifesta em alguns sistemas difusivos não lineares. Nesse trabalho, introduzimos um potencial confinante em um modelo de difusão unidimensional com uma não linearidade singular no coeficiente de difusão e analisamos a influência dessa mudança no estado estacionário do sistema. Conseguimos, então, derivar uma equação de difusão do modelo e obtemos uma solução para o perfil de densidade. Nossa solução analítica concorda perfeitamente com os resultados numéricos. Fizemos, ainda, um estudo estatístico do perfil de avalanches do modelo, e obtemos perfis de avalanche em leis de potência, o que normalmente não é observado em outros sistemas unidimensionais. Analisamos, ainda, como esses perfis variam na medida que se aumenta o confinamento, e usando transformações de escala encontramos uma curva universal para os perfis de distribuição de tamanhos de avalanche. Nossos resultados demonstram que a ação do confinamento em um sistema unidimensional pode levar ao surgimento da invariância de escala.
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Satulovsky, Javier Eduardo. "Modelo estocástico para um sistema predador-presa." Universidade de São Paulo, 1995. http://www.teses.usp.br/teses/disponiveis/43/43133/tde-28022014-111840/.
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Neste trabalho introduzimos e estudamos um modelo estocástico de gás de rede para descrever a evolução de um sistema de partículas interagentes que representam duas espécies: presas e predadores. As presas se reproduzem autocataliticamente ocupando sítios vazios de uma rede. Os predadores também se reproduzem autocataliticamente mas às expensas das presas, e morrem via aniquilação espontânea. As regras locais e irreversíveis do modelo, de dois parâmetros, são inspiradas no modelo de Lotka-Volterra e no processo de contato. No regime estacionário o modelo apresenta três fases. A primeira corresponde a um estado absorvente em que as presas cobrem toda a rede. A segunda é caracterizada por valores médios não nulos das densidades de cada espécie. Á medida que variamos os parâmetros dentro dessa fase surgem oscilações locais nas densidades. A segunda fase está separada da primeira através de uma linha de transição de fases cinética contínua. Essa linha crítica encontra-se na classe de universalidade da percolação dirigida em d+1 dimensões, com exceção de um ponto terminal que pertence à classe de universalidade da percolação ordinária. A terceira fase corresponde a um outro estado absorvente em que as duas espécies foram exterminadas. A transição da segunda para a terceira fase é contínua e também pertence à classe de universalidade da percolação dirigida em d+1 dimensões. Os resultados foram obtidos por meio de simulações computacionais bem como através de métodos analíticos aproximadosIn this work, we introduce and study a stochastic lattice gas model for the evolution of an interacting particle system describing two species: prey and predators. Prey undergo autocatalytic reproduction on empty sites of a lattice. Predators also reproduce autocatalytically at the expense of prey, as well as suffer spontaneous annihilations. The irreversible local rules of the model, involving two parameters, are inspired both in the Lotka-Volterra model and the contact process. In the stationary regime, the model shows three phases. The first one is associated to an absorbing state in which the lattice is completely covered by prey. The second one is characterized by finite values of the density of each species. As we tune the parameters values inside that phase, local oscillations in the population densities start to appear. The second phase is reached from the first one through a line of continuous kinetic phase transitions. The line belongs to the universality class of directed percolation in d+1 dimensions, except for its terminal point, which belongs to the universality class of ordinary percolation. The third phase corresponds to another absorbing state completely devoided of particles. The transition from the second to the third phase is continuous and also belongs to universality class of directed percolation in d+1 dimensions. The model has been studied by means of computer simulations as well as by using approximate analytical technics.
Books on the topic "Mechaninė sistema"
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Balakshin, O. B. Sintez sistem. Moskva: Rossiĭskai͡a︡ akademii͡a︡ nauk, In-t mashinovedenii͡a︡ im. A.A. Blagonravova, 1995.
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A, Fufaev N., and Klimov D. M, eds. Mekhanika sistem s neuderzhivai͡u︡shchimi svi͡a︡zi͡a︡mi. Moskva: "Nauka", 1993.
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P, Sibrin A., and Zhabreev V. S, eds. Sledi͡ashchie sistemy avtomaticheskikh manipuli͡atorov. Moskva: "Nauka," Glav. red. fiziko-matematicheskoĭ lit-ry, 1987.
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Modelirovanie sistem svi͡a︡zannykh tel. Moskva: Izd-vo "Nauka," Glav. red. fiziko-matematicheskoĭ lit-ry, 1993.
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Ivanov, V. N. Osnovy identifikat︠s︡ii mekhanicheskikh sistem: Monografii︠a︡. Permʹ: Permskiĭ gosudarstvennyĭ nat︠s︡ionalʹnyĭ issledovatelskiĭ universitet, 2012.
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Moretto, Antonio. Filosofia della matematica e della meccanica nel sistema hegeliano. Padova: Il poligrafo, 2004.
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E, Kobrinskiĭ A., ed. Manipuli͡a︡t͡s︡ionnye sistemy robotov: Osnovy ustroĭstva, ėlementy teorii. Moskva: "Nauka," Glav. red. fiziko-matematicheskoĭ lit-ry, 1985.
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Basin, M. A. Volny, kvanty, sobytii︠a︡: Volnovai︠a︡ teorii︠a︡ vzaimodeĭstvii︠a︡ struktur i sistem. Sankt-Peterburg: Izd-vo Norma, 2000.
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Smirnov, Sergey Nikolaevich. "Sovershenstvovanie sistemy obrazovatel'noi podderzhki odarennykh shkol'nikov - trend razvitiia sovremennoi sistemy vysshego obrazovaniia Rossiiskoi Federatsii." In Modern education; problems and prospects for further development, 27–38. Publishing house Sreda, 2019. http://dx.doi.org/10.31483/r-53670.
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The article deals with the questions of organization of work with gifted students in the space of higher educational institutions of the Russian Federation. Activity on educational support of talented and highly motivated pupils of some leading universities of Russia is considered. The author emphasizes that in order to ensure the optimal functioning of the mechanism for creating a model of general education in the space of a modern university, it is necessary to take measures to improve the legal framework.
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SIGNORINI, A. "Una espressiva applicazione delle proprietà di media dello stress comuni a tutti i sistemi continui." In Studies in Mathematics and Mechanics, 274–77. Elsevier, 2013. http://dx.doi.org/10.1016/b978-1-4832-3272-0.50039-9.
Full textConference papers on the topic "Mechaninė sistema"
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Jelić, Miloš, Ljubiša Stajić, and Ana Aksentijević Jelić. "Specifičnosti preispitivanja rukovodstva u sistemima menadžmenta u određenim oblastima." In Kvaliteta-jučer, danas, sutra (Quality-yesterday, today, tomorrow), edited by Miroslav Drljača. Croatian Quality Managers Society, 2021. http://dx.doi.org/10.52730/pjxy9697.
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Sažetak: Najvažniji mehanizam u svakom sistemu menadžmenta jeste preispitivanje od strane rukovodstva jer se njime procenjuje adekvatnost, pogodnost i efektivnost uspostavljenog sistema menadžmenta da ostvaruje postavljene ciljeve, te njegov kapacitet da sprovodi poboljšanja. Iako je zadatak isti, način kako se preispitivanje sprovodi, ulazi i izlazi iz takvih preispitivanja, mogu se značajno razlikovati. U ovom radu se analiziraju preispitivanja od strane rukovodstva za sisteme menadžmenta koji su zasnovani na standardima iz četiri oblasti: kvaliteta, bezbednosti, obrazovanja i povećanja vrednosti organizacije; radi se o sistemima menadžmenta uređenih prema standardima: ISO 18091 (kvalitet lokalne uprave), ISO:27001 (bezbednost informacija), ISO 21001 (obrazovne institucije) i ISO 30401 (menadžment znanjem u organizacijama). Rad analizira respektivne zahteve iz standardâ, ali i navodi neka iskustva iz prakse. Abstract: The most important mechanism in every management system is management review since it assesses suitability, adequacy and effectivity of established management system to achieve organizational intended results. Although the aim of management review is the same, the manner it is conducted, management review inputs and outputs, may significantly differ. This paper analyses management reviews for management systems in several areas, namely: quality, security, education and organizational value increase. In other words, these are management systems based on: ISO 18091 (quality of local government), ISO 27001 (information security), ISO 21001 (educational organizations) and ISO 30401 (knowledge management in organizations). The paper discusses respective standards requirements including some practical experience.
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Poskrebyševas, Ričardas, and Arminas Stanionis. "AUTOMATINIS SISTEMŲ VALDYMAS GEODEZIJOJE." In Conference for Junior Researchers „Science – Future of Lithuania“. VGTU Technika, 2018. http://dx.doi.org/10.3846/geo.2018.007.
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Straipsnyje aprašomas automatinių sistemų valdymas geodezijoje remiantis globalia padėties nustatymo sis-tema, siekiant pagerinti darbo kokybę, atlikimo greitį, sumažinant darbo išlaidas. Analizuojami skirtingi sunkiųjų technikų veikimo principai kaip, kad rankinis būdas arba visiškai automatinis, mechaninės ir elektrinės struktūros, apžvelgiama naudojama įranga, jos veikimas ir nauda.
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Costa, Miguel H. O., José G. S. da Silva, and Luciano R. O. de Lima. "ANÁLISE NÃO LINEAR DE SISTEMAS TRELIÇADOS ESPACIAIS UTILIZADOS PARA ESCORAMENTOS DE ESTRUTURAS DE AÇO E MISTAS." In 10th World Congress on Computational Mechanics. São Paulo: Editora Edgard Blücher, 2014. http://dx.doi.org/10.5151/meceng-wccm2012-19833.
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Josué, Marina I. P., Marcelo F. Moreno, Joel A. F. dos Santos, and Debora C. Muchaluat-Saade. "A mechanism for automatic preparation of media objects in Ginga-NCL." In XXV Simpósio Brasileiro de Sistemas Multimídia e Web. Sociedade Brasileira de Computação - SBC, 2019. http://dx.doi.org/10.5753/webmedia_estendido.2019.8160.
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This contribution proposes a mechanism for automatic preparation of media objects incorporated in Ginga-NCL. In the automatic preparation, the middleware Ginga-NCL builds a preparation plan based on the network conditions and the presentation behaviour gathered from the multimedia document that defines the application. The automatic preparation of media objects aims to reduce or avoid synchronization faults during the presentation of distributed multimedia applications.
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Carvalho Rabelo Filho, Raimundo. "Web usability as a mechanism for disseminating information on the internet." In XVII Simpósio Brasileiro de Fatores Humanos em Sistemas Computacionais. Sociedade Brasileira de Computação (SBC), 2018. http://dx.doi.org/10.5753/ihc.2018.4183.
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Using the usability principles brings benefits in the dissemination of information in web environments improving users' cognitive processes and linked to responsive web techniques forming interfaces with clearer and more effective interactivity. This paper describes the interlinkages between concepts that corroborate with the previous statement, through the redesign of the site frontend for the master's degree program GESTEC (locus of development of this research). Methodologically, applied research is used with a research-action approach for evaluation and results generation. At the end of the processes of construction of the site, considering the criteria and subsidiary parameters, it is noticed that the new layout enhances the interaction characteristics for the users, simplifying access to information.
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M. Neto, Mauricio, Leonardo O. Moreira, and Danielo G. Gomes. "FLECHA: a Forecasting eLEction meCHAnism for semantic collectors sensor nodes." In XV Workshop em Desempenho de Sistemas Computacionais e de Comunicação. Sociedade Brasileira de Computação - SBC, 2020. http://dx.doi.org/10.5753/wperformance.2016.9731.
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Due to the resource constraints of the sensor nodes, energy provisioning in wireless sensor networks remains a challenging task, particularly in outdoor scenarios. Among the literature proposals to mitigate this problem, we highlight semantic clustering as a recent energy-efficient technique for prolonging the network lifetime. In semantic clustering, each cluster has a semantic leader (collector) which is periodically elected according to an energy-related criterion. However, since collectors’ energy depletion is faster than the others members of their cluster, suitable election mechanisms are required to avoid the energy hole problem. Here we propose FLECHA, a mechanism based on the ARIMA model to predict semantic collectors elections with leader-node alternation. Our hypothesis is that by anticipating the best candidates to semantic leaders, we can improve the energy-saving at the node-level, and hence allow the network lifetime to be further extended.
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Messias de Oliveira Souza, Emanuel, Matheus Rudolfo Diedrich Ullmann, and Tiago Do Carmo Nogueira. "SCIUloT: Sistema de Combate aos lncendios Urbanos por meio daloT." In Computer on the Beach. Itajaí: Universidade do Vale do Itajaí, 2020. http://dx.doi.org/10.14210/cotb.v11n1.p068-070.
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The Internet of Things (IoT) is a communication paradigm that aims to cover the current Internet. In this sense, IoT covers a large space in the daily life of human beings, whether in the academic field or in the industrial sphere, therefore, there are smarter cities, health and automation of environments. Through the IoT it is possible to connect the objects of the everyday world to the Internet, in order to make these objects communicate with each other and with users. This work presents the way in which the IoT can corroborate in the fight against Urban Fires, through a system that interacts sensors, microcontrollers, the user and the Fire Department. The use of sensors that collect information about a certain location, send it to a controller board, which in turn forwards that information to the server, which directs the information to the user and the Fire Department, is the mechanism that will allow firefighters to be alerted to the incident. In this way, the work of the competent bodies can be made more effusive and, therefore, prevent the spread of fire in order to fight fires. It is worth mentioning that the rapid action of firefighters is extremely important, as the fire spreads quickly and produces incalculable damage.
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Pigossi, Antonio Carlos, and Yona Lopes. "Substation security mechanism based on SDN and MMS." In 2018 Simposio Brasileiro de Sistemas Eletricos (SBSE) [VII Brazilian Electrical Systems Symposium (SBSE)]. IEEE, 2018. http://dx.doi.org/10.1109/sbse.2018.8395683.
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Carlos Junior, Francisco, Ivan Silva, and Ricardo Jacobi. "A Partially Shared Thin Reconfigurable Array For Multicore Processor." In IX Simpósio Brasileiro de Engenharia de Sistemas Computacionais. Sociedade Brasileira de Computação - SBC, 2019. http://dx.doi.org/10.5753/sbesc_estendido.2019.8645.
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Reconfigurable architectures have been widely used as single core processor accelerators. In the multi-core era, however, it is necessary to review the way that reconfigurable arrays are integrated into multi-core processor. Generally, a set of reconfigurable functional units are employed in a similar way as they are used in single core processors. Unfortunately, a considerable increase in the area ensues from this practice. Besides, in applications with unbalanced workload in their threads this approach can lead to a inefficient use of the reconfigurable architecture in cores with a low or even idle workload. To cope with this issue, this work proposes and evaluates a partially shared thin reconfigurable array, which allows to share reconfigurable resources among the processor's cores. Sharing is performed dynamically by the configuration scheduler hardware. The results shows that the sharing mechanism provided 76% of energy savings, improving the performance 41% in average when compared with a version without the proposed reconfigurable array. A comparison with a version of the reconfigurable array without the sharing mechanism was performed and shows that the sharing mechanism improved up to 11.16% in the system performance.
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Viar Fraile, Iñigo De. "Bajo la Luz. Buscando la luz." In LC2015 - Le Corbusier, 50 years later. Valencia: Universitat Politècnica València, 2015. http://dx.doi.org/10.4995/lc2015.2015.610.
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Resumen: Le Corbusier fue un gran buscador. Un buscador de luz. Tras un primer periodo de búsqueda halló su arquitectura cúbica y blanca y luego, después de la Guerra y quince años sin construir, Le Corbusier inició un nuevo camino, una nueva búsqueda de la luz en su arquitectura; mucho más plena. En este segundo periodo el trabajo con la luz y con la sombra, sobre todo con la sombra, como mecanismo plástico, escultural, es muy intenso. Trabajó con la luz por medio de dos sistemas: la” interposición” y la “captación” (captura). El sistema de la “interposición” lo realizó mediante los Brise-Soleil, en un principio y luego, con mucha mayor contundencia, mediante los “edificios parasol” construidos como fachadas interpuestas. El sistema de la “captación”, más reducido, lo realizó por medio de lucernarios y grietas, buscando la luz, siempre con diferentes orientaciones. Por último decir que un arquitecto tan material como Le Corbusier construyó con lo inmaterial, con la luz, tejido de sus obras. Los edificios tratados son unos pocos, los principales, todos ellos de su segunda época. Abstract: Le Corbusier was a great searcher. A light searcher. Afterwards a first period of searching he founded his cubic and white architecture and after the Word War II and fifteen years without erecting up a building, Le Corbusier restarted a new path, a new search for the light in his architecture, much broader. In this second age, the work with the light and with the shadow, mostly with the shadow, as plastic and sculptural mechanism is very deep. He worked with the light via two systems: “interposition” and “capture”. The mechanism of “interposition” was developed by Le Corbusier by means of the BriseSoleil, at the beginning, and later, much more strongly, by means of the “parasol-sun shade buildings”, erected like front façades. The “catching” system, done on a smaller scale, was made by the construction of several skylights and gaps, searching for the light and always with different orientations. Finally say that a material architect as Le Corbusier was, he constructed with the immaterial light, weave of his works. The buildings studied are a few, all of them part of second period and they are the core of Le Corbusier´s buildings. Palabras clave: Luz, Sombra, Buscar, Interposición, Captación, Silencio. Keywords: Light, Shadow, Search, Interposition, Capture, Silence. DOI: http://dx.doi.org/10.4995/LC2015.2015.610