Significant decrease of the lattice thermal conductivity due to phonon
... than an order of magnitude兲 was observed in the temperature range from T⫽293 to 413 K. Such a huge drop in thermal conductivity cannot be attributed entirely to boundary scattering and structure imperfections, and is likely to be related to modification of phonon modes and corresponding change in th ...
... than an order of magnitude兲 was observed in the temperature range from T⫽293 to 413 K. Such a huge drop in thermal conductivity cannot be attributed entirely to boundary scattering and structure imperfections, and is likely to be related to modification of phonon modes and corresponding change in th ...
- Opus
... aesthetically attractive colored glass,4 e.g. cobalt-doped glass typically appears blue, absorbing red–orange light through the introduction of the transition metal-based color centers. Despite their architectural appeal, the practicalities of continuous modern float glass production designate the i ...
... aesthetically attractive colored glass,4 e.g. cobalt-doped glass typically appears blue, absorbing red–orange light through the introduction of the transition metal-based color centers. Despite their architectural appeal, the practicalities of continuous modern float glass production designate the i ...
Text - Enlighten: Publications
... contributions to the study of molecular systems by X-ray absorption near-edge spectroscopy (XANES).20–25 For the present work, we are interested in the study of the Cu K-edge (Cu1s / valence) for identifying the physical oxidation states of Cu ions bound by ligands from the 2p-elements. In this area ...
... contributions to the study of molecular systems by X-ray absorption near-edge spectroscopy (XANES).20–25 For the present work, we are interested in the study of the Cu K-edge (Cu1s / valence) for identifying the physical oxidation states of Cu ions bound by ligands from the 2p-elements. In this area ...
An experimental study of the surface thermal signature of hot
... [1] Management of eruptions requires a knowledge of lava effusion rates, for which a safe thermal proxy is often used. However, this thermal proxy does not take into account the flow dynamics and is basically time-independent. In order to establish a more robust framework that can link eruption rate ...
... [1] Management of eruptions requires a knowledge of lava effusion rates, for which a safe thermal proxy is often used. However, this thermal proxy does not take into account the flow dynamics and is basically time-independent. In order to establish a more robust framework that can link eruption rate ...
ATOMIC LAYER DEPOSITION OF TIN DIOXIDE NANOFILMS: A
... from equilibrium thermodynamics and experimental study of this process. It should be noted that the crystallization starts above 200r 7for H2O2 and above 500 r 7for O2. Thus, the reaction mechanism in these two cases cannot be identical. It is commonly accepted that the formation of oxide films from ...
... from equilibrium thermodynamics and experimental study of this process. It should be noted that the crystallization starts above 200r 7for H2O2 and above 500 r 7for O2. Thus, the reaction mechanism in these two cases cannot be identical. It is commonly accepted that the formation of oxide films from ...
chemical equilibrium
... Simply states “If the concentrations of all the substances present at equilibrium are raised to the power of the number of moles they appear in the equation, the product of the concentrations of the products divided by the product of the concentrations of the reactants is a constant, provided the te ...
... Simply states “If the concentrations of all the substances present at equilibrium are raised to the power of the number of moles they appear in the equation, the product of the concentrations of the products divided by the product of the concentrations of the reactants is a constant, provided the te ...
Structural transformation in formic acid on ultra cold ice surfaces
... at 1250 and 1217 cm1. At higher temperatures all the peaks in the fingerprint region become sharper due to the crystalline nature of the sample. After this till the desorption temperature no phase change is observed (Fig. 2e). At 185 K formic acid is completely desorbed from the KBr disc and the cle ...
... at 1250 and 1217 cm1. At higher temperatures all the peaks in the fingerprint region become sharper due to the crystalline nature of the sample. After this till the desorption temperature no phase change is observed (Fig. 2e). At 185 K formic acid is completely desorbed from the KBr disc and the cle ...
Re-Evaluating Thermal Conductivity from the Top Down: Thermal
... Given the above, the time-dependence of heat flow can be very complex. To calculate the thermal evolution of conducting layers, models typically rely on thermal diffusivity because this isolates the flow of heat from the amount of heat moved. Like k, D is typically moderately- to highly- temperature ...
... Given the above, the time-dependence of heat flow can be very complex. To calculate the thermal evolution of conducting layers, models typically rely on thermal diffusivity because this isolates the flow of heat from the amount of heat moved. Like k, D is typically moderately- to highly- temperature ...
A quantum mechanically guided view of Cd-MOF-5 from
... The optimized atomic positions, calculated equilibrium lattice parameter, as well as previously reported calculated lattice parameters are listed in Table 1. The lattice parameter of Cd-MOF-5 obtained by PBE-GGA calculations in the present work (27.3547 Å) is in good agreement with the previously re ...
... The optimized atomic positions, calculated equilibrium lattice parameter, as well as previously reported calculated lattice parameters are listed in Table 1. The lattice parameter of Cd-MOF-5 obtained by PBE-GGA calculations in the present work (27.3547 Å) is in good agreement with the previously re ...
WM White Geochemistry Chapter 2: Fundamental - U
... Thermodynamics embodies a macroscopic viewpoint, i.e., it concerns itself with the properties of a system, such as temperature, volume, heat capacity, and it does not concern itself with how these properties are reflected in the internal arrangement of atoms. The microscopic viewpoint, which is conc ...
... Thermodynamics embodies a macroscopic viewpoint, i.e., it concerns itself with the properties of a system, such as temperature, volume, heat capacity, and it does not concern itself with how these properties are reflected in the internal arrangement of atoms. The microscopic viewpoint, which is conc ...
Solutions - WordPress.com
... of the solution is equal to its solubility of solute • Considered unsaturated when the concentration of the solution is less than its solubility of solute • Considered super-saturated when the concentration of the solution is greater than its solubility of solute ...
... of the solution is equal to its solubility of solute • Considered unsaturated when the concentration of the solution is less than its solubility of solute • Considered super-saturated when the concentration of the solution is greater than its solubility of solute ...
Exploring the cylindrical photo-bending shape in
... remain the same values before and after light illumination. Therefore, the only thing we care about in this paper is the effective photo-strain rather than the effective elastic moduli for polydomain nematic glass. Two limits can be used when doing further approximation [28][29]. One is the Taylor l ...
... remain the same values before and after light illumination. Therefore, the only thing we care about in this paper is the effective photo-strain rather than the effective elastic moduli for polydomain nematic glass. Two limits can be used when doing further approximation [28][29]. One is the Taylor l ...
Mesas: Their Role in the Formation of Widely Spaced Step Arrays
... and photonics differs fundamentally from that of more conventional inorganic materials such as metals, semiconductors and oxides. A key difference involves the presence of strong covalent and ionic bonding in the latter class of materials, whereas organic materials are often bound by rather weak dis ...
... and photonics differs fundamentally from that of more conventional inorganic materials such as metals, semiconductors and oxides. A key difference involves the presence of strong covalent and ionic bonding in the latter class of materials, whereas organic materials are often bound by rather weak dis ...
Positive Temperature Coefficient of Resistance and Bistable
... Conductivities of lead selenide (PbSe) QD thin films treated with 1,2ethanedithiol increase when cooled from room temperature to 78 K, consistent with bulk PbSe crystals and indicating bandlike transport. Small angle X-ray scattering and infrared absorption spectroscopy results confirm a very strong e ...
... Conductivities of lead selenide (PbSe) QD thin films treated with 1,2ethanedithiol increase when cooled from room temperature to 78 K, consistent with bulk PbSe crystals and indicating bandlike transport. Small angle X-ray scattering and infrared absorption spectroscopy results confirm a very strong e ...
Glass transition
The glass–liquid transition or glass transition for short is the reversible transition in amorphous materials (or in amorphous regions within semicrystalline materials) from a hard and relatively brittle state into a molten or rubber-like state. An amorphous solid that exhibits a glass transition is called a glass. Supercooling a viscous liquid into the glass state is called vitrification, from the Latin vitreum, ""glass"" via French vitrifier.Despite the massive change in the physical properties of a material through its glass transition, the transition is not itself a phase transition of any kind; rather it is a laboratory phenomenon extending over a range of temperature and defined by one of several conventions. Such conventions include a constant cooling rate (20 K/min) and a viscosity threshold of 1012 Pa·s, among others. Upon cooling or heating through this glass-transition range, the material also exhibits a smooth step in the thermal-expansion coefficient and in the specific heat, with the location of these effects again being dependent on the history of the material. However, the question of whether some phase transition underlies the glass transition is a matter of continuing research.The glass-transition temperature Tg is always lower than the melting temperature, Tm, of the crystalline state of the material, if one exists.