SpeakOut Intermediate Stb

Cadernos REDE ITEGO, 2018

Apresentação E mpreendedorismo, inovação, iniciativa, criatividade e habilidade para trabalhar em equipe são alguns dos requisitos imprescindíveis para o profissional que busca se sobressair no setor produtivo. Sendo assim, destaca-se o profissional que busca conhecimentos teóricos, desenvolve experiências práticas e assume comportamento ético para desempenhar bem suas funções. Nesse contexto, os Cursos Técnicos oferecidos pela Secretaria de Desenvolvimento de Goiás (SED), visam garantir o desenvolvimento dessas competências. Com o propósito de suprir demandas do mercado de trabalho em qualificação profissional, os cursos ministrados pelos Institutos Tecnológicos do Estado de Goiás, que compõem a REDE ITEGO, abrangem os seguintes eixos tecnológicos, nas modalidades EaD e presencial: Saúde e Estética, Desenvolvimento Educacional e Social, Gestão e Negócios, Informação e Comunicação, Infraestrutura, Produção Alimentícia, Produção Artística e Cultural e Design, Produção Industrial, Recursos Naturais, Segurança, Turismo, Hospitalidade e Lazer, incluindo as ações de Desenvolvimento e Inovação Tecnológica (DIT), transferência de tecnologia e promoção do empreendedorismo. Espera-se que este material cumpra o papel para o qual foi concebido: o de servir como instrumento facilitador do seu processo de aprendizagem, apoiando e estimulando o raciocínio e o interesse pela aquisição de conhecimentos, ferramentas essenciais para desenvolver sua capacidade de aprender a aprender.

Wesley da Silva tem nove anos. É mulato e estuda no Grupo Escolar Nossa Senhora da Ajuda, num bairro da periferia de uma grande metrópole brasileira. Ele não conhece seu pai e sua mãe é doméstica.

El libro The Great Crash, 1929, fue publicado por pri-mera vez en el año 1955 y desde entonces ha permanecido ininterrumpidamente a la venta durante lo que hoy en día son ya más de cuarenta años. Los autores (y los editores) siendo quienes son, se tiende a atribuir su perseverante presencia a la excelencia propia de la obra. Por supuesto debería decir que este libro tiene cierto mérito, pero, para empeorar o quizás para mejorar las cosas, existe otra razón que explica su durabilidad. Cada vez que la obra estaba a punto de ser descatalogada y desaparecer de las librerías, un nuevo episodio especulativo-otra burbuja o el infortunio de ella resultante-estimuló el interés por la historia de aquel gran caso contemporáneo de prosperidad y súbito desplome del mercado de valores, que condujo a una implacable depresión. De hecho, cuando el libro estaba ya impreso, se produ-jo un nuevo de estos episodios. En la primavera del año 1955, hubo una pequeña alza en el mercado de valores y fui llamado a Washington para declarar ante una audien-cia del Senado sobre la experiencia pasada. Mientras pres-taba declaración aquella mañana, el mercado de valores cambió súbitamente su tendencia alcista. Me echaron la culpa del desplome de los valores, en particular, todos aquellos que tenían bienes o valores en el mercado cuya rentabilidad dependía del alza de los precios. Recibí un

Reprezentarea politică a femeilor în România, 2021

Este pentru prima dată, după aderarea României la UE, când se înregistrează o scădere a reprezentării politice a femeilor (aflată oricum la un nivel foarte scăzut), iar acest lucru necesită – inclusiv prin prisma evoluțiilor politice recente de la nivel european și regional – o reflecție serioasă. Prin acest studiu ne propunem să identificăm principalii factori care influențează accesul femeilor la un mandat politic (local, național sau european) în context românesc și să încercăm să înțelegem care sunt elementele care pot explica situația actuală.

2007

* The belief that the North Pole region could contain large quantities of oil and gas is one of the major forces driving Russian policy. The North Pole expedition of July-August 2007 laid the ground for submitting a claim to the UN Commission on the Limits of the Continental Shelf that the Lomonosov Ridge belongs to Russia. * Russia’s claims will be challenged by Canada, the USA and Denmark. The Arctic region is likely to become a region of geopolitical competition later in the 21st century as the ice cap melts. * There is a widespread view in Russia that its claim to Arctic territory is not speculative, but rightful compensation for territorial losses in Europe. * Any foreign interest in the area, government, commercial or environmental, is seen as hostile intent. * Armed action by NATO to contest Russia’s Arctic claims is discussed as a serious possibility. * Reports of the death of the Russian North are greatly exaggerated, as they take no account of commercial rebirth based on the oil industry. * Russia has a well-developed commercial and transport infrastructure to take advantage of opportunities offered by the retreating icecap, in contrast to other littoral states. * Naval re-armament and increased military activity mean the same applies to capacity for military action.

2013

Thesis by Athanasios Alexakis, 2013, 321 pages University of Northumbria at Newcastle Software: Fluent > Contents ... > Declaration 4 > Acknowledgements 5 > Abstract 6 > Table of contents 7 > List of figures 12 > List of tables 20 > Nomenclature 21 > Subscripts 23 > Greek characters 24 > Acronyms 25 > Chapter 1: Introduction 26 » 1.1 Research objectives 29 » 1.2 Research methodology 29 » 1.3 Contribution to knowledge 30 » 1.4 Thesis structure 31 > Chapter 2: Literature review 34 » 2.1 Introduction 34 » 2.2 Empirical performance evaluation 34 » 2.3 Thermodynamic modelling 34 » 2.3.1 First order modelling 35 » 2.3.2 Second order modelling 36 » 2.3.3 Third order modelling 40 » 2.3.4 Multi-dimensional modelling 41 » 2.4 Optimization of Stirling engine design 43 » 2.4.1 Optimization using genetic algorithm 46 » 2.5 Stirling engine design prototypes 48 » 2.6 Investigation of new thermo-mechanical topologies 50 » 2.6.1 Wankel engines 52 » 2.7 Conclusions 54 > Chapter 3: Theory + application of Stirling + Wankel engines 56 » 3.1 Introduction 56 » 3.2 Principles of operation 57 » 3.3 Mechanical arrangements 60 » 3.4 Applications 64 » 3.4.1 Space applications 64 » 3.4.2 Solar applications 65 » 3.4.3 Biomass applications 68 » 3.4.4 Commercial + domestic micro-combined heat + power (mCHP) applications 70 » 3.5 Thermodynamic analysis 74 » 3.5.1 Ideal Stirling cycle 74 » 3.5.2 The Schmidt analysis 79 » 3.5.2.1 Basic equations of the Schmidt analysis 79 » 3.5.3 The ideal adiabatic model 83 » 3.5.3.1 Basic equations of the ideal adiabatic model 85 » 3.5.4 The quasi-steady flow model 88 » 3.5.4.1 Basic equations of the quasi-steady flow model 91 » 3.5.5 Empirical modelling 96 » 3.6 Main principles of genetic algorithm optimization 97 » 3.6.1 Introduction 97 » 3.6.2 Genetic algorithm procedure for the optimization of Stirling engines 98 » 3.6.2.1 Definition of the objective function for Stirling engine optimization 99 » 3.6.2.2 Generation of the initial population 100 » 3.6.2.3 Evaluation 100 » 3.6.2.4 Selection process 100 » 3.6.2.5 Mating process 101 » 3.6.2.6 Mutation process 101 » 3.6.2.7 Convergence check 101 » 3.7 Rotary Stirling engine (Wankel configuration) 102 » 3.7.1 Wankel engine theory 103 » 3.7.2 Geometrical properties of the Wankel mechanical configuration 105 » 3.7.2.1 Equation of the peritrochoid 105 » 3.7.2.2 Volumetric variation + displacement volume 106 » 3.7.2.3 Performance calculation of the Wankel engine 108 > Chapter 4: General principles of CFD modelling 110 » 4.1 Introduction 110 » 4.2 Governing differential equations 110 » 4.2.1 Continuity equation 112 » 4.2.2 Conservation of momentum equation 113 » 4.2.3 Turbulent flow models 115 » The k-e model 117 » The Standard k-e turbulence model 117 » The RNG k-e model 118 » The Realizable k-e model 121 » 4.2.4 Energy conservation equation 122 » 4.2.5 Porous media conditions 123 » 4.2.5.1 Limitations + assumptions of the porous media model 124 » 4.2.5.2 Momentum equations for porous media 124 » 4.2.5.3 Treatment of the energy equation in porous media 125 » 4.3 Dynamic mesh theory 126 » 4.3.1 Spring based smoothing method 126 » 4.3.2 Boundary layer smoothing method 127 » 4.3.3 Dynamic layering method 128 » 4.3.4 Remeshing methods 129 » 4.3.4.1 Local remeshing method 129 » 4.3.4.2 Local face remeshing method 130 » 4.4 In-cylinder utility 130 » 4.5 Discretization methods 131 » 4.5.1 The finite-difference method 132 » 4.5.2 The finite-element method 133 » 4.5.3 The finite-volume method 133 » 4.6 CFD solution outline 135 > Chapter 5: Thermodynamic modelling + design optimization of an alpha-type solar Stirling engine 138 » 5.1 Introduction 138 » 5.2 Description of the solar Stirling engine under investigation 139 » 5.3 Results obtained using the second-order mathematical model 141 » 5.3.1 Analysis of the working process 142 » 5.3.2 Model validation + comparison with published literature 150 » 5.4 Optimization of the solar Stirling engine parameters 153 » 5.5 Synopsis 158 > Chapter 6: Results of the global 3D CFD model of the solar Stirling engine 159 » 6.1 Introduction 159 » 6.2 Description of the global 3D CFD model 159 » 6.2.1 Engine layout 159 » 6.2.2 Computational grid 162 » 6.2.3 Model settings 163 » 6.2.3.1 Thermal boundary conditions + materials specification 164 » 6.2.3.2 Solution initialization + convergence monitoring 167 » 6.3 Analysis of the global 3D CFD modelling results 168 » 6.4 Validation of the global 3D CFD model 219 » 6.5 Synopsis 223 > Chapter 7: CFD simulation of the Wankel-type rotary solar Stirling machine 224 » 7.1 Introduction 224 » 7.2 Description of the 2D CFD model of gas circuit of the WRSM 224 » 7.2.1 Description of the WRSM 224 » 7.2.2 Description of the 2D CFD model 230 » 7.3 Results of the 2D CFD model 234 » 7.3.1 Results of 2D CFD model with the UDF for limiting the gas leakage between the tips + the casing 234 » 7.3.1.1 Calculation of power 258 » 7.3.2 Results of the 2D CFD model without UDF 263 » 7.3.3 Results of 2D CFD model of a 180° rotor-shift WRSM 264 » 7.4 Synopsis 272 > Chapter 8: Conclusions + recommendations for future work 273 » 8.1 Conclusions 273 » 8.1.1 Conclusions from the application of second-order mathematical modelling on the original solar Stirling engine 273 » 8.1.2 Conclusions from the solution of the 3D total CFD model (originally developed by Prof. Mahkamov) of the original solar Stirling engine 274 » 8.1.3 Conclusions from the development of the CFD models of the novel Wankel-type rotary Stirling machine 276 » 8.2 Recommendations for future work 277 > Bibliography 278 > Appendix A: User-defined function for the motion specification of the pistons of the original Stirling engine 293 > Appendix B: User-defined function for the motion specification + flow blockage of the pistons of the WRSM 296 german keywords: Wankelmotor / Kreiskolbenmotor English Keywords: Wankel Engine / Wankel Rotary Engine / Rotary Piston Engine / Rotary Combustion Engine

Opopanax chironium e Ferula: una proposta di produzione pugliese, 2024

Il genere Opopanax si trova, come Ferula spp., anche in Puglia, in luoghi dove si stabilirono i Greci. Il loro uso si è perso, ma opportune analisi di laboratorio dei loro componenti potrebbero aprire la strada a rinnovati utilizzi, anche nel campo della cucina.