ElaStic: A universal tool for calculating elastic constants from first
... This tool also provides the elastic compliances tensor and applies the Voigt and Reuss averaging procedure in order to obtain an evaluation of the bulk, shear, and Young moduli as well as the Poisson ratio of poly-crystalline samples. In a first step, the spacegroup is determined. Then, a set of def ...
... This tool also provides the elastic compliances tensor and applies the Voigt and Reuss averaging procedure in order to obtain an evaluation of the bulk, shear, and Young moduli as well as the Poisson ratio of poly-crystalline samples. In a first step, the spacegroup is determined. Then, a set of def ...
THz generation by optical rectification of near
... method for the generation of broadband THz pulses [1]. A high conversion efficiency in this process is crucial for both THz imaging and spectroscopy applications, because it leads to a high signal-to-noise ratio and can enable nonlinear optics experiments relying on intense THz pulses. It requires a ...
... method for the generation of broadband THz pulses [1]. A high conversion efficiency in this process is crucial for both THz imaging and spectroscopy applications, because it leads to a high signal-to-noise ratio and can enable nonlinear optics experiments relying on intense THz pulses. It requires a ...
Comparison of the electronic structures of four crystalline phases of
... All the calculations were performed within the framework of spin-dependent density functional theory (DFT)8,9 using both the local density approximation (LDA)10 and the generalized gradient approximation (GGA).11 Symmetry breaking spin ordering within the unit cells and spin-orbit interactions were ...
... All the calculations were performed within the framework of spin-dependent density functional theory (DFT)8,9 using both the local density approximation (LDA)10 and the generalized gradient approximation (GGA).11 Symmetry breaking spin ordering within the unit cells and spin-orbit interactions were ...
Acoustical properties of air-saturated porous material with
... filled with a fluid described by the effective wavenumber q and the effective impedance z. To derive the expressions for q and z, a simple self-consistent model similar to a coherent potential approximation (CPA) (Ref. 7) is used. In this method the configuration shown in Fig. 1 is replaced by a por ...
... filled with a fluid described by the effective wavenumber q and the effective impedance z. To derive the expressions for q and z, a simple self-consistent model similar to a coherent potential approximation (CPA) (Ref. 7) is used. In this method the configuration shown in Fig. 1 is replaced by a por ...
Synthesis, Growth and characterization of L-Histidine
... Key words: Single crystal; XRD; microhardness; dielectric constant; thermal studies; NLO ...
... Key words: Single crystal; XRD; microhardness; dielectric constant; thermal studies; NLO ...
DX4301741751
... optical (NLO) materials, have been successfully grown by the slow solvent evaporation technique at room temperature. Transparent crystals were obtained over a period of 25 days. The ten grown crystals were characterized structurally, optically, thermally, mechanically and electrically. Lattice param ...
... optical (NLO) materials, have been successfully grown by the slow solvent evaporation technique at room temperature. Transparent crystals were obtained over a period of 25 days. The ten grown crystals were characterized structurally, optically, thermally, mechanically and electrically. Lattice param ...
Multimode One-Way Waveguides of Large Chern Numbers
... Consequently, finding systems with jCj ≥ 1 is a fundamental scientific goal in studying topological phases. The search for higher Chern numbers also has practical value. In electronics, having more chiral edge states would greatly reduce the contact resistance for circuit interconnects [5,6]. For ph ...
... Consequently, finding systems with jCj ≥ 1 is a fundamental scientific goal in studying topological phases. The search for higher Chern numbers also has practical value. In electronics, having more chiral edge states would greatly reduce the contact resistance for circuit interconnects [5,6]. For ph ...
9. Short overview of rheology very short for 2 credit course
... slipperiness of the parts of the liquid, other things being equal, is proportional to the velocity with which the parts of the liquid are separated from one another.” ...
... slipperiness of the parts of the liquid, other things being equal, is proportional to the velocity with which the parts of the liquid are separated from one another.” ...
Lecture 45
... contain regularly repeating internal regions of high and low dielectric constant. Photons (as waves) propagate through this structure - or not - depending on their wavelength. Wavelengths of light that are allowed to travel are known as modes, and groups of allowed modes form bands. Disallowed bands ...
... contain regularly repeating internal regions of high and low dielectric constant. Photons (as waves) propagate through this structure - or not - depending on their wavelength. Wavelengths of light that are allowed to travel are known as modes, and groups of allowed modes form bands. Disallowed bands ...
Full-Text PDF
... In addition, to reduce the number of plane waves (i.e., the number of reciprocal lattice vectors used in expansion Equation (1)), we applied the effective dielectric tensor method [39,41]. The effective dielectric tensor at a certain point is determined by calculating the gradient of the permittivit ...
... In addition, to reduce the number of plane waves (i.e., the number of reciprocal lattice vectors used in expansion Equation (1)), we applied the effective dielectric tensor method [39,41]. The effective dielectric tensor at a certain point is determined by calculating the gradient of the permittivit ...
IOSR Journal of Applied Physics (IOSR-JAP)
... Growth and characterization of BIS L-alanine Strontium Nitrate single crystals 3.4 UV-vis NIR analysis A higher optical transmittance is very desirable in an NLO crystal. Optical transmission spectra were recorded using a double beam spectrophotometer in the wavelength region 190-1100 nm and the re ...
... Growth and characterization of BIS L-alanine Strontium Nitrate single crystals 3.4 UV-vis NIR analysis A higher optical transmittance is very desirable in an NLO crystal. Optical transmission spectra were recorded using a double beam spectrophotometer in the wavelength region 190-1100 nm and the re ...
Data mining and accelerated electronic structure theory as a tool in
... and dEh are not significant for these materials, and have hence not been used. For this class of systems our peer group is composed of compounds published by Dorenbos in Ref.20. Before describing the details of the analysis of band gap properties, we note that first principles calculations normally ...
... and dEh are not significant for these materials, and have hence not been used. For this class of systems our peer group is composed of compounds published by Dorenbos in Ref.20. Before describing the details of the analysis of band gap properties, we note that first principles calculations normally ...
Building Materials by Packing Spheres
... these particles have one inherent limitation: they are nearly always spheres. Because a colloidal particle is much larger than its constituent atoms, its shape is determined by surface tension, not by its interior covalent bonds. The equilibrium and nonequilibrium behavior of colloidal suspensions i ...
... these particles have one inherent limitation: they are nearly always spheres. Because a colloidal particle is much larger than its constituent atoms, its shape is determined by surface tension, not by its interior covalent bonds. The equilibrium and nonequilibrium behavior of colloidal suspensions i ...
Connecting mesoscopic and macroscopic scale lengths for
... non-linear stress-strain law σ = E ε (1 + βε + …) e.g. (Jhang and Kim, 1999), E being the Young’s elastic modulus. The second harmonic parameter β was proposed to characterize the material degradation. However, β values augmented as the excitation frequency increased and there remained a doubt if th ...
... non-linear stress-strain law σ = E ε (1 + βε + …) e.g. (Jhang and Kim, 1999), E being the Young’s elastic modulus. The second harmonic parameter β was proposed to characterize the material degradation. However, β values augmented as the excitation frequency increased and there remained a doubt if th ...
Methods Based on the Absorption of Gamma
... in the case of hydrogen this ratio is equal to unity. Hence the value of μ for hydrogen is higher by a factor of 2 than for the other elements in the soil material (see Table 2.3). It follows that the mass absorption coefficient of water is higher by 11 % as compared with the rock skeleton. Tables 2 ...
... in the case of hydrogen this ratio is equal to unity. Hence the value of μ for hydrogen is higher by a factor of 2 than for the other elements in the soil material (see Table 2.3). It follows that the mass absorption coefficient of water is higher by 11 % as compared with the rock skeleton. Tables 2 ...
FTIR, XRD, TGA Investigations of L
... of ADP. The spectrum was observed from Thermo Nicolet, Avatar 370 sectrophotometer in the region 400 to 4000 cm-1 using KBr pellet. The prominent peaks in the FTIR pattern have been indexed as shown in Fig. 2. Many useful observations were observed. The group frequency region was located between 400 ...
... of ADP. The spectrum was observed from Thermo Nicolet, Avatar 370 sectrophotometer in the region 400 to 4000 cm-1 using KBr pellet. The prominent peaks in the FTIR pattern have been indexed as shown in Fig. 2. Many useful observations were observed. The group frequency region was located between 400 ...
Comparison of the electronic structures of four crystalline phases of
... purposes, is not known to exist in nature; natural phosphorus oxides are found in much more complicated structures.兲 For these three test materials, the three different computational methods give superposable binding energy curves, giving us confidence that the three methods can be used together to ...
... purposes, is not known to exist in nature; natural phosphorus oxides are found in much more complicated structures.兲 For these three test materials, the three different computational methods give superposable binding energy curves, giving us confidence that the three methods can be used together to ...
Material Analysis and Application for Radio Frequency
... Material Analysis and Application for Radio Frequency Electromagnetic Wave Shielding S.C. Yener∗ and O. Cerezci University, Engineering Faculty, Department of Electrical and Electronic Engineering, Sakarya, Turkey Our environment is full of radio frequency (RF) electromagnetic radiation due to rapid ...
... Material Analysis and Application for Radio Frequency Electromagnetic Wave Shielding S.C. Yener∗ and O. Cerezci University, Engineering Faculty, Department of Electrical and Electronic Engineering, Sakarya, Turkey Our environment is full of radio frequency (RF) electromagnetic radiation due to rapid ...
Theoretical Study on Electronic, Optical Properties and
... 2. Computational Methods and Details In this paper, by using the standard Kohn–Sham self-consistent density functional theory [14–17] based on SIESTA code, we study the structural, electronic, and elastic properties of two forms of technetium phosphides: Tc3 P and TcP4 crystals. To get the calculate ...
... 2. Computational Methods and Details In this paper, by using the standard Kohn–Sham self-consistent density functional theory [14–17] based on SIESTA code, we study the structural, electronic, and elastic properties of two forms of technetium phosphides: Tc3 P and TcP4 crystals. To get the calculate ...
Growth and Characterization of Pure and Ammonium nickel (II
... Nalwa and Miyata et al [1] have formulated a set of characteristics for a nonlinear optical material to be introduced into optical applications. The nonlinear optical material must be highly transmitting at the fundamental and harmonic wavelengths and must have a laser induced damage threshold high ...
... Nalwa and Miyata et al [1] have formulated a set of characteristics for a nonlinear optical material to be introduced into optical applications. The nonlinear optical material must be highly transmitting at the fundamental and harmonic wavelengths and must have a laser induced damage threshold high ...
Strength of materials
... Three other elastic moduli are Poisson's ratio, Lamé's first parameter, and P-wave modulus. Young's modulus is a measure of the stiffness of an elastic material and is a quantity used to characterize materials. It is defined as the ratio of the uniaxial stress over the uniaxial strain in the range o ...
... Three other elastic moduli are Poisson's ratio, Lamé's first parameter, and P-wave modulus. Young's modulus is a measure of the stiffness of an elastic material and is a quantity used to characterize materials. It is defined as the ratio of the uniaxial stress over the uniaxial strain in the range o ...
the entry tests
... (B) Conductivity is much higher than metal (C) No conductivity (D) Just like metal 12) What does the young's modulus of the material mean? ( ) (A) The stress required to produce a unit elastic strain of the material (B) Elastic strain induced by unit stress in material (C) The ability of materials t ...
... (B) Conductivity is much higher than metal (C) No conductivity (D) Just like metal 12) What does the young's modulus of the material mean? ( ) (A) The stress required to produce a unit elastic strain of the material (B) Elastic strain induced by unit stress in material (C) The ability of materials t ...
07_chapter 2
... the polarization of the material, and Ȥe is the electric susceptibility. The relative permitivity or dielectric constant of a material is defined as: İr = İİ0 = 1+Ȥe ...
... the polarization of the material, and Ȥe is the electric susceptibility. The relative permitivity or dielectric constant of a material is defined as: İr = İİ0 = 1+Ȥe ...
X04704145151
... nm. The lower cut off wavelength for pure BTCB is found at 269 nm and the lower cut off wavelength for LABTCB is found at 259 nm. The wide range of transparency suggests that the crystals are good candidates for nonlinear optical applications. The shift of lower cutoff wavelength in UV region is due ...
... nm. The lower cut off wavelength for pure BTCB is found at 269 nm and the lower cut off wavelength for LABTCB is found at 259 nm. The wide range of transparency suggests that the crystals are good candidates for nonlinear optical applications. The shift of lower cutoff wavelength in UV region is due ...
Analytical,Experimental and Numerical Analysis of Passive
... The specimen is prepared by standard process ASTM standard E-756(05). It consists of two layers of aluminum and the viscoelastic material in the core composed of a 3M High-Strength Acrylic double face Adhesive. [1] Experimental apparatus For vibration damping testing, there are two primary considera ...
... The specimen is prepared by standard process ASTM standard E-756(05). It consists of two layers of aluminum and the viscoelastic material in the core composed of a 3M High-Strength Acrylic double face Adhesive. [1] Experimental apparatus For vibration damping testing, there are two primary considera ...