Academic literature on the topic 'Van Houten (Firm)'
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Journal articles on the topic "Van Houten (Firm)"
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Willems, Gertjan. "'Tot bevordering van de Nederlandstalige filmcultuur'. De invoering van een Vlaams filmproductiebeleid (1945-1965)." WT. Tijdschrift over de geschiedenis van de Vlaamse beweging 74, no. 3 (September 29, 2015): 258–79. http://dx.doi.org/10.21825/wt.v74i3.12092.
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Dit artikel focust op de start van het overheidsbeleid tegenover de filmproductie in Vlaanderen. Toen na de Tweede Wereldoorlog de eerste (pogingen tot) steunmaatregelen aan de filmproductie in België ontstonden, zoals het economisch gemotiveerde detaxatiesysteem en de op educatieve films gerichte Cinematografische Dienst, werden deze steevast binnen een Belgisch unitair kader geconcipieerd. Toen er aan het begin van de jaren 1960 plannen ontstonden voor een selectief en cultureel geïnspireerd filmsteunmechanisme onder de vorm van een Belgisch Filminstituut, eisten de Vlaamse betrokkenen echter een naar taal opgesplitste tweeledige structuur van het Instituut. Het Vlaamse streven naar culturele autonomie mondde uit in het Koninklijk Besluit van 14 november 1964 tot bevordering van de Nederlandstalige filmcultuur, wat de start van de systematische en selectieve cultureel gemotiveerde filmproductiesteun in Vlaanderen betekende. Er werd een filmcommissie geïnstalleerd die de minister van Cultuur adviseerde over de filmproductietoelagen, hierbij rekening houdend met de Belgische nationaliteit, het Nederlandstalige karakter en de culturele aard van de filmprojecten. Op die manier wilde men een nieuwe, kwaliteitsvolle en herkenbare Vlaamse cinema creëren.________'To promote the Dutch language film culture'. The introduction of a Flemish film production policy (1945-1965)This article focuses on the beginning of the government's policy regarding film production in Flanders. When the first (attempted) measures to support film production in Belgium originated after the Second World War, like the economically motivated reduced taxation system and the Cinematographic Service aimed at educational films, these invariably were conceived within a Belgian unitary framework. However, when plans were made at the beginning of the 1960's to create a selective and culturally inspired film susidy mechanism by means of a Belgian Film Institute, the Flemish stakeholders demanded that the Institute would consist of a dual structure divided according to language. The Flemish pursuit of cultural autonomy resulted in the Royal Decree of 14 November 1964 to promote the Dutch language film culture, which meant the beginning of systematic and selective culturally motivated film production aid in Flanders. A film commission was established that advised the Minister of Culture about film production subsidies, taking into acount the Belgian nationality, the Dutch language character and cultural nature of the film projects. The objective was to create in this way a new recognisable Flemish cinema of good quality.
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Kershaw, David, and Theodore van Houten. "Silent Cinema Music in the Netherlands: The Eyl/Van Houten Collection of Film and Cinema Music in the Nederlands Filmmuseum." Notes 51, no. 1 (September 1994): 154. http://dx.doi.org/10.2307/899211.
Full textBooks on the topic "Van Houten (Firm)"
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Sybrand, Zijlstra, and Rixtel Robert van, eds. Cacao- en chocoladefabriek C.J. van Houten & Zn., 1815-1971: Opkomst en ondergang van een wereldmerk. Eindhoven]: [Z]OO producties, 2012.
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Houten, Theodore van. Silent cinema music in the Netherlands: The Eyl/Van Houten Collection of Film and Cinema Music in the Nederlands Filmmuseum. Buren, The Netherlands: F. Knuf Publishers, 1992.
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Povée, Henk. De eeuw van Blokker: Honderd jaar huishoudbranche in Nederland. Bussum: Thoth, 1996.
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Hummelen, Marlies. Tomado: Van der Togts massa-artikelen Dordrecht 1923-1982. Hoog-Keppel: Boekschap, 2013.
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Lok, Jeroen. Casa Poli. Edited by Ibelings Hans, Ellrichshausen Sofía von 1976-, and Pezo Mauricio 1973-. Amsterdam: Architecture Observer, 2013.
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(Firm), Pezo von Ellrichshausen, ed. Pezo von Ellrichshausen. Providencia, Santiago de Chile: Ediciones ARQ, 2007.
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(Firm), Pezo von Ellrichshausen. Progetto privato. Melfi, Italia: Libria, 2010.
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De wraak van Arghus. Schelle, Belgium: Studio 100, 2009.
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Christie, Ian. Spaces. Amsterdam University Press, 2024. http://dx.doi.org/10.5117/9789048563265.
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Film has long been defined as a temporal art, most famously by André Bazin and Andrei Tarkovsky. Yet more fundamentally it has always been a spatial art, transporting its audiences imaginatively to spaces and places other than those they literally inhabit. In the digital era, this spatial illusion and paradox has been greatly expanded – by the predominance of domestic film viewing, along with new extra-terrestrial perspectives, and the promise of novel kinesthetic experiences with Virtual Reality and “immersion”. The international authors in this collection address the history and aesthetics of screen media as spatial transposition, in a range of exemplary analyses that run from the landscapes of John Ford’s westerns to Chantal Akerman’s claustrophobic domestic spaces, from the conventions of the English country house film to Patrick Keiller’s Robinson roaming a changed country, and from the experiences of Covid pandemic confinement to those of un-homed van-dwellers in Chloe Zhao’s award-winning NOMADLAND.
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Tegethoff, Wolf, Daniela Hammer-Tugendhat, and Ivo Hammer. Haus Tugendhat. Ludwig Mies Van der Rohe. de Gruyter GmbH, Walter, 2020.
Find full textBook chapters on the topic "Van Houten (Firm)"
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Jordan, Randolph. "Reflective Empathy." In Acoustic Profiles, 97—C3P84. Oxford University PressNew York, 2023. http://dx.doi.org/10.1093/oso/9780190226077.003.0004.
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Abstract This chapter makes an explicit connection between film sound and another core practice in acoustic ecology, soundscape composition, through an analysis of Gus Van Sant’s film Last Days (2005). The sound design for Last Days incorporates the soundscape compositions of Hildegard Westerkamp, original member of the World Soundscape Project. This chapter examines how her piece “Doors of Perception” is mapped onto the space of the house occupied by Blake (Michael Pitt), a character loosely based on Kurt Cobain during the days leading up to his death. This chapter argues that to properly understand how soundscape composition works as a sound design element we need a new model for theorizing how the compilation film soundtrack makes use of pre-existing pieces of music, one that considers the undertheorized role of music’s spatial qualities in film. Soundscape composition attunes us to the spatial dimensions of music, bringing theorizations of the genre to questions of the compilation film soundtrack, offering a new pathway into thinking about film music along ecological lines. This chapter demonstrates how the presence of Westerkamp’s piece in the film opens up ways of thinking about the function of space across all the sound design elements, as well as the image track, to reveal the heart of the film: reflective empathy, the author’s term used to describe the problems of opening up empathetic spaces of identification between characters in the film, and between films and their audiences, echoing the problems of vanishing mediation in the discourse of fidelity discussed throughout this book.
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Atkins, Joseph B. "Early Days in Hollywood." In Harry Dean Stanton, 51–62. University Press of Kentucky, 2020. http://dx.doi.org/10.5810/kentucky/9780813180106.003.0005.
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Harry Dean Stanton arrived in Hollywood with solid stage training and confidence he would be a star at a time of great change in the film industry with the challenges of television, lingering bitterness over the communist witch hunting of the U.S. House for Un-American Activities Committee, and the steady decline of the studio system. After a bit part in Alfred Hitchcock's The Wrong Man (1956), Harry Dean began to pick up more substantive roles on television and in Westerns like Tomahawk Trail (1957) and The Proud Rebel (1958) with Alan Ladd and Olivia de Havilland. He joined character actors Royal Dano, Jack Elam, and Dub Taylor to become one of the increasingly familiar faces on television's The Untouchables, Laramie, Gunsmoke, Rawhide, and Dick Powell's Zane Grey Theater. Some of his fellow actors in supporting roles, like Warren Oates and Lee Van Cleef, would go on to become stars. For Harry Dean, the road was much longer.
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Lorbiecki, Marybeth. "Surveying the Field: 1924– 1933." In A Fierce Green Fire. Oxford University Press, 2016. http://dx.doi.org/10.1093/oso/9780199965038.003.0014.
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Since Assistant Director Leopold was not needed at the lab until July 1, he took the train with Starker and Luna to Burlington to visit his mother and brothers. (Marie had married and moved to Illinois with her husband.) Together again, the “boys” immediately began plans for a trip—this time to Carhart’s proposed wilderness area in the boundary waters of Minnesota for two weeks of canoeing, camping, and fishing. Prior to trip departure, though, Aldo had to travel to Madison to prepare the way for the family move. Starker and his uncles Carl and Frederic headed straight to Ely, Minnesota, to arrange for the canoes and equipment (Luna stayed with Opa Leopold to await the arrival of the rest of his family). Their missions accomplished, Aldo and the other adventurers met and set off into the wilds of the Superior National Forest and the Canadian Quetico. The Leopold brothers had at last reached their magical North. For two weeks, the voyageurs paddled past granite outcroppings and tall pines, fishing for trout and listening to the mournful wail of loons. Aldo wrote in his journal, “The number of adventures awaiting us in this blessed country seems without end.” Later he added, “How Dad would have loved it! I am reminded of Isaac [sic] Walton’s terse but loving tribute—‘an excellent angler, now with God.’” Leopold and Starker returned to Madison, an “awfully dolled up town.” He had written earlier to Estella: “Nobody has any backyard except in the slums—not even a woodshed or fence or chickens—the backyards are open lawns just as the fronts. We have a little garden room at this place I am thinking of—which is not usually the case, but nobody keeps chickens, so we would do so at our own peril!” The rest of the family arrived shortly, and the Leopolds moved into a rented home “not far from the country.” Within the month, they bought a stucco house about a mile from the lab—at 2222 Van Hise Avenue—and their energies went into transforming it into a real home.
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Santos, Leonoura Katarina, Roberio Francisco de Macêdo, and Cláudio José Bertazzo. "Atividades lúdicas nas aulas de geografia: Experiências na formação docente inicial." In Ensino e Educação: Práticas, desafios e tendências, 92–105. Editora Licuri, 2023. http://dx.doi.org/10.58203/licuri.83470.
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Este estudo apresenta uma proposta metodológica que se realizou no Estágio Supervisionado em Geografia III, com discentes do Curso de Geografia da Universidade Federal de Catalão, direcionadas à turma de 7º ano do Instituto de Educação Matilde Margon Vaz situado em Catalão, Goiás. Teve-se, como objetivo apresentar aos alunos novas formas de apreender Geografia, especialmente por meio de metodologias pouco usuais no ensino da educação básica. No caso desse informe, primou-se pelo o uso do lúdico, a fim de elucidar com maior clareza as transformações frente ao espaço geográfico e cotidiano dos alunos. Evidentemente, as metodologias de ensino utilizadas consistiram no aporte da mediação lúdica, contemplada pela maturação dos conhecimentos pré-existentes dos alunos em conciliação com o conteúdo do currículo e o vivido e percebido do aluno em seu espaço de vivência, sendo este, a própria cidade. A metodologia foi de pesquisa bibliográfica e de campo, com dinâmicas em jogos e brincadeira como o Quiz Geológico e o Bingo. A proposta demonstrou-se eficaz pois houve participação massiva por parte dos alunos, os quais ao interagirem com os temas abordados, instigado pela proposta lúdica, assumiram a construção do próprio conhecimento com autonomia e destreza.
Conference papers on the topic "Van Houten (Firm)"
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Hanchak, Michael S., Marlin D. Vangsness, Nadina Gheorghiu, Jamie S. Ervin, Larry W. Byrd, and John G. Jones. "Thin Film Evaporation Model With Retarded van der Waals Interaction." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-62397.
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In phase change heat transfer equipment, three-phase contact regions exist that consist of a solid wall and the liquid and vapor phases of a working fluid. When the working fluid fully wets the solid wall, a microscopic thin film adjoining the meniscus is present called the adsorbed film. Upon heating, a non-uniform evaporative flux profile develops with a maximum value occurring within the transition between the adsorbed film and the intrinsic meniscus. It is important to study the heat transfer characteristics of this region to gain better fundamental understanding and useful design principles. The adsorbed film occurs when the driving potential for evaporation is opposed by the presence of intermolecular forces, represented analytically by the disjoining pressure, which acts to thicken a wetting film. The model presented includes lubrication theory of the liquid flow within the film, heat conduction across the film from the heated wall to the liquid-vapor interface, kinetic theory evaporation from the interface to the vapor phase, and disjoining pressure based on a retarded van der Waals interaction. The retarded van der Waals interaction is derived from Hamaker theory, the summation of retarded pair potentials for all molecules for a given geometry. When combined, the governing equations form a third-order, nonlinear differential equation for the film thickness versus distance, which is solved numerically using iteration of the initial film curvature in order to match the far-field curvature of the meniscus. Also, iteration is required at each length step to determine the liquid-vapor interface temperature. Useful outputs of the model include the liquid-vapor interface temperature and the evaporative mass flux profile. The model is calibrated to in-house experiments that employ an axisymmetric capillary feeder to provide a thin film of n-octane onto a substrate of silicon, where the gas phase is air saturated with vapor. The film thickness versus radial distance is measured using reflectometry and interferometry.
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Mahmood, Gazi I., and Keenesh Arnachellan. "Flow-Field in a Linear Vane Cascade With Endwall Fillet and Film-Cooling." In ASME 2018 5th Joint US-European Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/fedsm2018-83140.
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Fillets at the junction of blade and endwall are employed to passively control the endwall secondary flows and total pressure losses in the cascade flow-field investigations. Film-cooling of the endwall using the slots at the entrance of blade passage is also investigated in the cascade setup to actively control the flow-field. The present paper reports the experimental measurements of the flow-field in a linear vane cascade that employs the endwall fillet and film cooling flow. The objectives are to investigate the additional effects of the film-flow on the secondary flows and total pressure losses in the cascade when the fillet is present. The fillet is employed at the vane-endwall junction from the leading edge to the throat region of the cascade passage. The film-cooling flow is provided from two slots located at the entrance of vane-passage simulating the platform gaps between the rotor/stator or combustor/NGV (nozzle guide vane) discs in the gas turbine. The vane-profile and cascade geometry are obtained from the first-stage of the GE-E3 gas turbine engine. The inlet Reynolds number based on the actual-chord of the vane is 2.0E+05. The inlet blowing ratio of the film cooling flow is varied between 1.1 and 2.3 as the density ratio of the film-flow to mainstream remains constant at 1.0. As the cascade is housed in an atmospheric wind tunnel, the measurements are obtained in the incompressible flow regime. The measurements include the distributions of endwall pressure, flow angles, axial vorticity, and total pressure losses along the vane passage. The results indicate the flow yaw angle and axial vorticity in the filleted passage without the film-cooling are reduced in the endwall region compared to the baseline case (no fillet and film cooling). Consequently, the passage vortex, which is the primary secondary flow, is weakened reducing the total pressure losses in the filleted passage. As the film-cooling flow is introduced in the filleted passage, the yaw angle in the endwall region is reduced further weakening the pitchwise-flow responsible for the development and strengthening of the passage vortex. The total pressure losses are also reduced further with the film-cooling flows and with the increasing blowing ratios. The film coverage of the endwall will be better as the passage vortex is weakened in the filleted passage. The present investigation is important for reducing the aerodynamic losses and improving of the film-cooling effectiveness in the gas turbine cascade.
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Li, Xueying, Jing Ren, and Hongde Jiang. "Film Cooling Modeling of Turbine Blades Using Algebraic Anisotropic Turbulence Models." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25191.
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The complex structures in the flow field of gas turbine film cooling increase the anisotropy of turbulence making it difficult to accurately compute turbulent eddy viscosity and scalar diffusivity. An algebraic anisotropic turbulence model is developed while aiming at a more accurate modeling of the Reynolds stress and turbulent scalar flux. In this study the algebraic anisotropic model is validated by two in-house experiments. One is a leading edge with showerhead film cooling and the other is a vane with full coverage film cooling. Adiabatic film cooling effectiveness under different blowing ratios, density ratios and film cooling arrangements were measured using PSP technique. Four different turbulence models are tested and detailed analyses of computational simulations are performed. Among all the turbulence models investigated, the algebraic anisotropic model shows better agreement with the experimental data qualitatively and quantitatively. The algebraic anisotropic model gives a good prediction of the vortex strength and turbulence mixing of the jet, therefore improves the prediction of the scalar field.
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Schöffler, Robin, Clemens Grunwitz, and Robin G. Brakmann. "A Semi-Empirical Model for Conceptual Turbine Vane Cooling Design and Optimization." In ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-103061.
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Abstract Efficient turbine vane cooling designs are increasingly important to improve the thermal efficiency of gas turbines. Evaluating the performance of a cooling design requires the knowledge of the temperature distribution on the vane surface and the cooling air mass flow rate. The estimation of the vane temperature distribution is considered as a conjugate heat transfer problem, which usually requires a computationally intensive 3D CFD-FEM simulation. However, this approach is not suited for an early design phase, when the cooling design frequently changes. A simplified, yet physical approach is necessary to develop an initial cooling design, which can be used as a baseline for more detailed investigations. This paper presents a predictive model for turbine vane cooling and it’s integration into an optimization tool chain. The model uses a vane geometry model, the aerodynamic flow field and the coolant conditions from an in-house turbine design tool chain. The cooling geometry is divided into multiple interior sections with their own parameterizations, characterizing the cooling method and it’s geometric representation. Internal cooling, such as impingement or convective cooling, as well as external cooling, namely film cooling, is considered. Taking the material properties of the vane into account, the model calculates the temperature distribution on the vane surface and the coolant mass flow rate to identify critical hot spots and to evaluate a cooling concept. The capabilities of the model are demonstrated in an optimization process to improve the cooling design of a modern high pressure nozzle guide vane. Compared to a manually created cooling concept, the coolant mass flow rate was reduced by more than 20 % while simultaneously a more uniform metal temperature was achieved.
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Charbonnier, D., P. Ott, M. Jonsson, F. Cottier, and Th Ko¨bke. "Experimental and Numerical Study of the Thermal Performance of a Film Cooled Turbine Platform." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-60306.
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Detailed surface measurements of the thermal performance of a film cooling system have been performed on the endwall of a nozzle guide vane (NGV) mounted in a linear cascade facility at EPFL. An external cooling scheme including several rows of fan-shaped and cylindrical cooling holes has been designed. By testing different cooling flow rates at a NGV exit Reynolds number of 1.7E+06 and Mach number of 0.88, detailed aerodynamic and heat transfer values were obtained destined to assess the design tools for film cooled platforms. The surface static pressure distribution and the film cooling effectiveness on the endwall surface have been experimentally determined. The measurements were obtained applying the pressure sensitive paint technique measuring the coolant gas concentration. An engine representative density ratio between the coolant and the external hot gas flow was achieved by the injection of CO2. The working conditions of the test case similar to realistic engine conditions allow for the validation of in-house CFD codes and the investigation of the reliability of modern commercial tools in such a complex cooling system. The numerical campaign has been performed on the same numerical grid, using the commercial codes FLUENT and CFX, used by EPFL and MTU respectively. A detailed analysis of the grid effects on the obtained results has been previously realised as well as the study of the influence of the modelling approximations. Three cooling mass flows have been simulated and the performance parameters of the film cooling system have been compared to the experimentally obtained data. Special emphasis has been put on the jet penetration effects and on the interaction of secondary flows with the coolant flow. The experimental and numerical efforts were part of the EU funded research project TATEF2 (Turbine Aero-Thermal External Flows 2).
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Andrei, Luca, Luca Innocenti, Antonio Andreini, Bruno Facchini, and Lorenzo Winchler. "Film Cooling Modelling for Gas Turbine Nozzles and Blades: Validation and Application." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-43345.
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The use of Computational Fluid Dynamics (CFD) for modern turbine blade design requires the accurate representation of the effect of film cooling. However, including complete cooling hole discretization in the computational domain requires a substantial meshing effort and leads to a drastic increase in the computing time. For this reason, many efforts have been made to develop lower order approaches aiming at reducing the number of mesh elements and therefore computational resources. The simplest approach models the set of holes as a uniform coolant injection, but it does not allow an accurate assessment of the interaction between hot gas and coolant. Therefore higher order models have been developed, such as those based on localized mass sources in the region of hole discharge. It is here proposed an innovative injection film cooling model (FCM), embedded in a CFD code, to represent the effect of cooling holes by adding local source terms at the hole exit in a delimited portion of the domain, avoiding the meshing process of perforations. The goal is to provide a reliable and accurate tool to simulate film-cooled turbine blades and nozzles without having to explicitly mesh the holes. The validation campaign of the proposed model is composed of two phases. During the first one, results obtained with the film cooling model are compared to experimental data and to numerical results obtained with the full meshing of the cooling holes on a series of test cases, ranging from single row to multi row flat plate, at varying coolant conditions (in terms of blowing and density ratio). Though details of the flow structure downstream of the holes cannot be perfectly captured, this method allows an accurate prediction of the overall flow and performance modifications induced by the presence of the cooling holes, with a strong agreement to complete hole discretization results. In the second phase, a complete film-cooled vane test case has been studied, in order to consider a real injection system and flow conditions. In this case, film cooling model predictions are compared to an in-house developed correlative approach and full CHT 3D-CFD results. Finally, a comparison between film cooling model predictions and experimental data was performed on an actual nozzle of a GE Oil & Gas heavy-duty gas turbine as well, in order to prove the feasibility of the procedure. The presented film cooling model proved to be a feasible and reliable tool to evaluate adiabatic effectiveness, simplifying the design phase avoiding the meshing process of perforations. Also, refining the mesh near the hole exit, FCM results well approximate the solution coming from a full CHT calculation.
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Cerutti, Matteo, Luca Bozzi, Federico Bonzani, and Carlo Carcasci. "An Efficient Procedure for the Analysis of Heavy Duty Gas Turbine Secondary Flows in Different Operating Conditions." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-22935.
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Combined cycle and partial load operating of modern heavy-duty gas turbines require highly efficient secondary air systems to supply both cooling and sealing air. Accurate performance predictions are then a fundamental demand over a wide range of operability. The paper describes the development of an efficient procedure for the investigation of gas turbine secondary flows, based on an in-house made fluid network solver, written in Matlab® environment. Fast network generation and debugging are achieved thanks to Simulink® graphical interface and modular structure, allowing predictions of the whole secondary air system. A crucial aspect of such an analysis is the calculation of blade and vane cooling flows, taking into account the interaction between inner and outer extraction lines. The problem is closed thanks to ad-hoc calculated transfer functions: cooling system performances and flow functions are solved in a pre-processing phase and results correlated to influencing parameters using Response Surface Methodology (RSM) and Design of Experiments (DOE) techniques. The procedure has been proved on the secondary air system of the AE94.3A2 Ansaldo Energia gas turbine. Flow functions for the cooling system of the first stage blade, calculated by RSM and DOE techniques, are presented. Flow functions based calculation of film cooling, tip cooling and trailing edge cooling air flows is described in details.
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Amaral, Milena Pereira, Victória Borges de Lima, Andressa Chagas Rezende Leticia Borges Ribeiro, and Dionísio Ailton Pereira. "ALTERAÇÕES NAS PAPILAS GUSTATIVAS EM IDOSOS." In I Congresso Brasileiro de Saúde Pública On-line: Uma abordagem Multiprofissional. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/2863.
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Introdução: Nas últimas décadas, tornou-se evidente que o segmento populacional que mais cresce no Brasil é composto por pessoas com mais de 60 anos. Paralelamente, houve uma evolução da promoção da saúde e maior conscientização em relação aos cuidados com a boca e os dentes nesta fase da vida. Objetivo: Ressaltar os principais fatores fisiológicos e não fisiológicos responsáveis por alterar as papilas gustativas durante o envelhecimento. Material e métodos: foi realizada uma pesquisa bibliográfica analítica para reunião de informações contemplando artigos nacionais e internacionais, em português e inglês compilados na íntegra nas bases de dados: Scielo (Scientific Electronic Library Online) e BVSMS (Biblioteca Virtual em Saúde) utilizando os descritores “paladar”, “envelhecimento”, “idoso”. Resultados: O envelhecimento é responsável por alterar estruturas e funções do corpo humano como a capacidade mastigatória, fluxo salivar e estímulos sensoriais. O processo de senescência compromete a identificação do cheiro e sabor dos alimentos, e fatores como o uso de fármacos, álcool, tabaco e próteses dentárias podem intensificar essas alterações. Com o avanço da idade, os corpúsculos gustativos presentes nas papilas da língua vão sofrendo um decréscimo significativo, e os principais sabores (doce, salgado, amargo, azedo e umami) vão se tornando menos intensos, comprometendo os hábitos alimentares do idoso. O envelhecimento é um processo irreversível e natural. Dessa forma, compreender as mudanças na função sensorial dos idosos é de extrema importância. As membranas responsáveis por recobrir o nariz tornam-se finas e secas e os nervos olfativos e neurônios receptores acabam se deteriorando. Nesse sentido, a detecção de odores sutis vai se tornando difícil entre os idosos. Além disso, foi visto que alcoolismo, tabagismo, uso de fármacos e próteses dentárias fazem com que os indivíduos idosos estejam suscetíveis à perda da sensibilidade gustativa. Em decorrência disso, a nutrição também é acometida e os efeitos nos pacientes idosos podem ocorrer de maneira mais proeminente. Conclusão: É necessário compreender as alterações que ocorrem na função gustativa durante o envelhecimento e detectá-las a fim de contribuir para uma melhor qualidade de vida dos idosos.
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Okita, Yoji, Junichi Kazawa, Kazutaka Fuchigami, Takashi Yamane, Nozomi Tanaka, Hiroki Sato, Masaaki Hamabe, and Haruyuki Tanimitsu. "Aerodynamic Impact of Secondary Air Injection Flowrates on the Main Annulus Flow Field and Performance for a Transonic High-Pressure Turbine Stage." In ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-101849.
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Abstract In this study, the influence of secondary air blowing on the main annulus flow field and performance of a transonic high-pressure turbine (HPT) was investigated experimentally and numerically. The experimental setup was a single-stage, unshrouded turbine with a blading consistent with modern HPTs. The entire testing campaign was conducted in a full annular, rotating, continuous turbine test rig at the Japan Aerospace Exploration Agency (JAXA), which realized the most faithful matching unrivalled of both the primary and secondary stream similarity parameters to reality. An elaborate secondary air system implemented in the hardware enabled it to mimic all the dominant coolant/purge streams representative of advanced hot sections: the full coverage film-cooling on stator and rotor airfoils, disk wheelspace purge air blown forward and aft of the rotor, and coolant injection through the over-tip casing. Detailed three-dimensional flow field and efficiency measurements for various secondary air flowrates were performed by traversing a pneumatic thermometric combination probe downstream of the rotor. A complete set of numerical simulations was run concurrently with the testing to determine how well they captured the flow physics, particularly the interaction of the ejected secondary streams with the primary flow. The JAXA in-house code, UPACS, and its best practice settings, based on past verification and validation efforts, were employed and not intentionally tuned to better fit the data. The investigation applied both steady and unsteady approaches. Given the study’s primary goal, important features such as coolant holes, internal plenums, and wheelspace cavities that affect the interactions were all directly resolved in the calculation rather than simplified by the boundary conditions and/or source-term modeling. The rotor exit survey in the experiment suggested that the disk forward hub purge and the blowing from the over-tip casing both intensified the passage vortex in the cascade. In contrast, it was indicated that a positive effect also resulted from ejection from the tip casing, diminishing the tip leakage vortex. The stage performance evaluation implies that the resulting gain may offset or outweigh the negative effects of injection. Additionally, the data suggested that coolant blown off the airfoil has an impact also on the near-endwall zone in particular and can boost (by vane coolant) or weaken (by blade coolant) the secondary flow.
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Machado, Veruska Ribeiro, Thiago Batista Amorim, and Petrus Marcelino Barros. "Interdisciplinaridade no ensino de física e computação na educação básica: relato de experiência de um curso de formação inicial e continuada sob a perspectiva na construção de experimentos." In Simpósio Brasileiro de Educação em Computação. Sociedade Brasileira de Computação, 2021. http://dx.doi.org/10.5753/educomp.2021.14491.
Full textAbstract:
Vivemos em uma realidade imersa em inovações tecnológicas constantes que emergem e tornam-se indispensáveis em todas as áreas, por consequência dessa relação indissociável entre sociedade e tecnologia os processos de aprendizagem também são afetados. A formação do estudante do século XXI passa pela perspectiva de formação tecnológica, pela necessidade de letramentos digitais que o permita atuar como produtor crítico na sociedade moderna, não basta ter habilidade com as ferramentas TICs disponíveis para acesso à informação, exige-se deste indivíduo pensamento crítico, argumentação e capacidade de resolução de problemas. A Sociedade Brasileira de Computação (SBC), em seu documento Itinerário Formativo de Computação, vai além da necessidade de formação tecnológica, mas sim na formação em computação na educação básica, que hoje é comparável à alfabetização no passado, contribuindo para a compreensão plena do mundo imerso em tecnologias digitais, capacidade de aprendizagem e resolução de problemas, e apoio ao aprendizado das demais disciplinas. Frente a esta realidade o presente projeto voltou-se ao ensino de ciências naturais e levanta-se a questão: como desenvolver estas habilidades nas aulas de ciências na educação básica, mas especificamente nas aulas de física? Este trabalho teve como objetivo o ensino de física e computação de forma interdisciplinar na perspectiva do letramento científico e digital em um curso de formação inicial e continuada para 13 estudantes do ensino médio do 1º, 2º e 3º ano, utilizando, para isso, uma metodologia voltada no desenvolvimento de projetos. Considerando que a associação entre teoria e prática no ensino de física normalmente é realizada através de experimentos, os projetos que foram desenvolvidos pelos estudantes durante as aulas consistiam na criação de experimentos físicos através da plataforma Arduino e seus respectivos sensores, utilizando conceitos de computação, programação e robótica. Para isso formou-se uma equipe multidisciplinar composta por professores da área da física e computação para planejamento coletivo a cada encontro do curso, desenvolvendo de forma interdisciplinar o conteúdo da área de física e computação a serem abordados de forma a fornecerem subsídios ao estudante para desenvolver o experimento. Os resultados da aplicação deste projeto apontam que a construção dos experimentos foi um facilitador de aprendizagem auxiliando a compreensão dos conceitos de física e computação, tanto na verificação do conceito através do experimento quanto no processo de construção do mesmo, tornando os estudante produtores de tecnologias ao compreenderem e implementarem conceitos de computação para verificação de conceitos da física. Além disso houve uma percepção pelos próprios estudantes no aumento de conhecimento nas áreas de física e computação proveniente da metodologia adotada no projeto. Por fim percebeu-se também um grande interesse e motivação dos estudantes ao longo das aulas ao colocá-los no papel ativo da aprendizagem como produtores de artefatos tecnológicos, por meio da plataforma Arduino, e investigadores científicos a cada encontro do curso.