Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

SOLAR ENERGY --- COMPUTER PROGRAMS --- CALCULATORS --- SOLAR RADIATION --- TRANSMITTANCE --- HEAT EXCHANGERS --- WEATHER --- METEOROLOGICAL DATA --- SOLAR HEATING --- DESIGN --- PASSIVE SOLAR HEATING --- ACCUMULATORS --- COMPUTERIZED SIMULATION --- HEAT GAIN --- MICROCOMPUTERS --- SOLAR ENERGY --- COMPUTER PROGRAMS --- CALCULATORS --- SOLAR RADIATION --- TRANSMITTANCE --- HEAT EXCHANGERS --- WEATHER --- METEOROLOGICAL DATA --- SOLAR HEATING --- DESIGN --- PASSIVE SOLAR HEATING --- ACCUMULATORS --- COMPUTERIZED SIMULATION --- HEAT GAIN --- MICROCOMPUTERS

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Les oxydes transparents sont des matériaux présentant des propriétés opto-électroniques intéressantes pour de nombreuses applications technologiques. La majorité de ces semi-conducteurs présentent des propriétés électriques associées à un dopage de type-n. Or, le développement de matériaux de type-p présentant des propriétés physiques aussi intéressantes que leurs homologues de type-n est, encore aujourd'hui, un défi pour la communauté scientifique. Dans ce travail, nous avons développé une méthode originale de fabrication de films minces de ZnO dopé. Pour ce faire, nous avons incorporé des nanofils d’argent (AgNWs) entre deux films minces de ZnO déposés par pulvérisation cathodique. Les propriétés physiques de ces composites ont été étudiées suivant la quantité de nanofils ainsi qu’en fonction de la température de recuit de l’échantillon post-synthèse. Le but de cette étude est de mettre en évidence l’impact de l’ajout et de la diffusion des nanofils d’argent dans le ZnO sur les propriétés électriques et optiques de ce composite tout en optimisant la méthode de synthèse des échantillons. Sur base de cette méthodologie, nous avons mis en évidence trois gammes de température de recuit. Jusqu'à 300°C, nous observons une diminution de la résistance électrique suivie d'une augmentation notable à 350°C, toute deux identifiées à l’évolution des propriétés physiques du ZnO. Ensuite, pour des températures de plus de 450°C, nous observons une diminution de la résistivité grâce aux nanofils d'argent. Une valeur optimale pour la densité de nanofils a été déterminée aux alentours de 6.4 µg/cm² pour une température de recuit de 40°C associée à une résistivité de 4.31 Ωcm et une transmittance optique de 73.3% dans le domaine du visible.

Semi-conducteurs --- ZnO --- AgNW --- Dopage --- ZnO:Ag --- Pulvérisation cathodique --- Revêtement centrifuge --- Transmittance --- Résistivité --- Semiconductors --- RF magnetron sputtering --- Spin coating --- transparent conducting oxide --- Physique, chimie, mathématiques & sciences de la terre > Physique

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

In this master thesis, the interaction of light with periodic arrays of nanometer-wide metal lines arestudied. To do so, extensive use of wave optics, waveguide and diffraction grating theories is made to better understand the interaction of light with a structure made of perfect electrical conductor (PEC) lines, both for TE and TM polarizations. In particular, we propose to gather the results of those theories in an original band structure to understand how light can couple into the array as a function of the geometrical parameters. The structure is viewed as periodic metallic waveguides simultaneously constituting a diffraction grating. The model is used to analyze quantitative numerical finite element calculations of reflectance and transmittance spectra (obtained using COMSOL Multiphysics). First, a grating of PEC lines is studied. Then an array of copper lines is analyzed and compared to the PEC lines.

reflectance --- transmittance --- array --- periodic --- metal --- copper --- interconnect --- metrology --- geometry --- pitch --- width --- height --- perfect electric conductor --- pec --- band structure --- waveguide --- diffraction --- grating --- plasmonic --- surface --- plasmon --- polariton --- semiconductor --- oxide --- scatterometry --- raman --- moore --- ruthenium --- platinum --- thin-film --- extraordinay --- optical --- transmission --- cutoff --- mode --- dispersion --- relation --- propagation --- evanescent --- nanometer --- photonic --- Physique, chimie, mathématiques & sciences de la terre > Physique

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This book results from a Special Issue related to the latest progress in the thermodynamics of machines systems and processes since the premonitory work of Carnot. Carnot invented his famous cycle and generalized the efficiency concept for thermo-mechanical engines. Since that time, research progressed from the equilibrium approach to the irreversible situation that represents the general case. This book illustrates the present state-of-the-art advances after one or two centuries of consideration regarding applications and fundamental aspects. The research is moving fast in the direction of economic and environmental aspects. This will probably continue during the coming years. This book mainly highlights the recent focus on the maximum power of engines, as well as the corresponding first law efficiency upper bounds.

indoor air quality --- microservice --- regression analysis --- Northern Cyprus --- environmental and technological design --- air infiltration --- IoT --- shading devices --- BIPV --- energy need optimisation --- massive simulation modelling --- thermal transmittance of enclosures --- energy efficiency --- indoor air quality index --- building energy performance --- energy consumption --- mobile app --- annual energy demand --- Passivhaus --- renewable energy integration --- dynamic building simulation --- passivhaus --- thermal comfort --- passive cooling systems --- passive strategies --- passive house --- smart ventilation --- fan-assisted ventilation

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This Special Issue includes 20 contributions from across the world with very interesting and current research topics, such as insulation solutions and CO2 emissions; thermal transmittance of LSF walls; statistics for China’s building energy consumption; natural ventilation; thermal behavior of an earthbag building; thermal performance and comfort in a vernacular building; overheating risk under future extreme weather conditions; analytical methods to estimate the thermal transmittance of LSF walls; model simplification on energy and comfort simulation analysis; Trombe wall thermal behavior and energy efficiency of an LSF compartment; new metering hot box for in situ hygrothermal measurement; mechanical and thermal performance of compressed earth blocks; life-cycle assessment of a new house; energy analyses of Serbian buildings with horizontal overhangs; thermal properties of mortar blocks by using recycled glass; prediction of cooling energy consumption building using machine learning techniques; occupants’ behavior, climate change, heating, and cooling energy needs of buildings; a new method for establishing a hygrothermally controlled test room; nonintrusive measurements to incorporate the air renovations in dynamic models; and retrofit of existing buildings with aerogel panels.

Research & information: general --- Technology: general issues --- energy demand analysis --- insulation materials --- climate zones --- envelope --- CO2 emissions --- LSF construction --- facade wall --- partition wall --- thermal transmittance --- thermal bridges --- parametric study --- numerical simulations --- building energy statistics --- building energy consumption --- energy balance sheet --- building energy efficiency --- China --- building automation systems --- heating control --- energy savings --- earth building --- thermal comfort --- passive design --- monitoring and simulation --- glazed balcony --- indoor comfort --- passive strategies --- thermal performance --- vernacular architecture --- overheating risk --- evaluation --- cold climates --- lightweight steel frame --- LSF walls --- U-value --- analytical methods --- calculation procedures --- accuracy --- Model simplifications --- Thermal and visual comfort --- Energy performance --- IDA ICE --- Residential building --- passive solar --- Trombe wall --- light steel frame --- thermal behavior --- energy efficiency --- Mediterranean climate --- office use --- residential use --- heating set-points --- metering hot box --- in situ --- hygrothermal measurement --- dynamic conditions --- historic masonries --- HeLLo --- compressed earth blocks (CEBs) --- compressive strength --- durability --- guarded hot box --- LCA --- environmental impact --- house --- building envelope --- building --- overhangs --- energy consumption --- optimization --- GenOpt --- EnergyPlus --- crushed glass --- periodic thermal transmittance --- energy demand --- adaptive comfort --- social housing --- heating and cooling system --- optimization and management --- energy use prediction --- neural network --- support vector machine --- occupant behavior --- climate changes --- energy needs --- ventilation --- residential buildings --- DesignBuilder --- water vapor resistivity --- hygrothermal modeling --- condensation --- mold --- hygrothermal properties --- moisture transport --- inter-laboratory testing --- building energy --- performance assessment --- air renovation --- non-intrusive measurements --- on-board monitoring --- aerogel --- dynamic simulation --- retrofitting --- economic analysis --- energy demand analysis --- insulation materials --- climate zones --- envelope --- CO2 emissions --- LSF construction --- facade wall --- partition wall --- thermal transmittance --- thermal bridges --- parametric study --- numerical simulations --- building energy statistics --- building energy consumption --- energy balance sheet --- building energy efficiency --- China --- building automation systems --- heating control --- energy savings --- earth building --- thermal comfort --- passive design --- monitoring and simulation --- glazed balcony --- indoor comfort --- passive strategies --- thermal performance --- vernacular architecture --- overheating risk --- evaluation --- cold climates --- lightweight steel frame --- LSF walls --- U-value --- analytical methods --- calculation procedures --- accuracy --- Model simplifications --- Thermal and visual comfort --- Energy performance --- IDA ICE --- Residential building --- passive solar --- Trombe wall --- light steel frame --- thermal behavior --- energy efficiency --- Mediterranean climate --- office use --- residential use --- heating set-points --- metering hot box --- in situ --- hygrothermal measurement --- dynamic conditions --- historic masonries --- HeLLo --- compressed earth blocks (CEBs) --- compressive strength --- durability --- guarded hot box --- LCA --- environmental impact --- house --- building envelope --- building --- overhangs --- energy consumption --- optimization --- GenOpt --- EnergyPlus --- crushed glass --- periodic thermal transmittance --- energy demand --- adaptive comfort --- social housing --- heating and cooling system --- optimization and management --- energy use prediction --- neural network --- support vector machine --- occupant behavior --- climate changes --- energy needs --- ventilation --- residential buildings --- DesignBuilder --- water vapor resistivity --- hygrothermal modeling --- condensation --- mold --- hygrothermal properties --- moisture transport --- inter-laboratory testing --- building energy --- performance assessment --- air renovation --- non-intrusive measurements --- on-board monitoring --- aerogel --- dynamic simulation --- retrofitting --- economic analysis