Design and Fabrication of a Superprism
... From left to right, examples of (a) one, (b) two, and (c) three dimensional photonic crystals. The different colors represent materials of different dielectric constants [5]..... 20 ...
... From left to right, examples of (a) one, (b) two, and (c) three dimensional photonic crystals. The different colors represent materials of different dielectric constants [5]..... 20 ...
CadmiumFurandicarboxylate Coordination Polymers Prepared with
... by using a dicarboxylate and bridging amine ligand.12 It is noteworthy that Cd(II)-containing coordination polymers gained much attention due to their ability to form bonds with different donors simultaneously and the large radius, the various coordination numbers, and the extraordinary physical prop ...
... by using a dicarboxylate and bridging amine ligand.12 It is noteworthy that Cd(II)-containing coordination polymers gained much attention due to their ability to form bonds with different donors simultaneously and the large radius, the various coordination numbers, and the extraordinary physical prop ...
Design of an integrated optical source of twin photons Ivan Avrutsky
... subject of intensive experimental research 关1,2兴. Sources of entangled photons based on bulk nonlinear crystals such as beta-barium borate 共-BBO兲 关3兴 have been widely used in early experiments. The development of robust, efficient, and compact sources of entangled photons has become a necessity for ...
... subject of intensive experimental research 关1,2兴. Sources of entangled photons based on bulk nonlinear crystals such as beta-barium borate 共-BBO兲 关3兴 have been widely used in early experiments. The development of robust, efficient, and compact sources of entangled photons has become a necessity for ...
Kinetics and Diffusion Basic concepts in kinetics
... atoms of the same kind as the atoms of the crystal. Self-interstitials in most materials introduce strong deformations into the lattice and have very high formation energy, Δhfi ≈ 3Δhfv for metals. The number of equilibrium interstitials can be estimated by an equation similar to the one derived for ...
... atoms of the same kind as the atoms of the crystal. Self-interstitials in most materials introduce strong deformations into the lattice and have very high formation energy, Δhfi ≈ 3Δhfv for metals. The number of equilibrium interstitials can be estimated by an equation similar to the one derived for ...
Mineral Groups 2.2 Minerals
... Cleavage and Fracture • Cleavage occurs along specific planes of weakness in a mineral. These planes are caused by the molecular structure of the mineral. • Crystals with good cleavage like calcite or mica will always break parallel to the same plane. ...
... Cleavage and Fracture • Cleavage occurs along specific planes of weakness in a mineral. These planes are caused by the molecular structure of the mineral. • Crystals with good cleavage like calcite or mica will always break parallel to the same plane. ...
182.pdf
... made with colloids of diameter 280 nm. This peak corresponds to the anticrossing of the bands, that is, between the bands which are folded back into the first Brillouin zone due to the translational periodicity and the ⌫-L bands 关23兴. There is another peak at 1.82 a / for samples made with a collo ...
... made with colloids of diameter 280 nm. This peak corresponds to the anticrossing of the bands, that is, between the bands which are folded back into the first Brillouin zone due to the translational periodicity and the ⌫-L bands 关23兴. There is another peak at 1.82 a / for samples made with a collo ...
Photoactivation mechanism of PAmCherry based on crystal
... of PAmCherry1 in the OFF and ON states were refined at 1.5 Å and 1.65 Å resolution, respectively (Table S1). In both isomorphous structures, the asymmetric unit contains one PAmCherry1 protein chain with total solvent accessible area of approximately 9,880 Å2 (Fig. S2). Contacts between symmetry-rel ...
... of PAmCherry1 in the OFF and ON states were refined at 1.5 Å and 1.65 Å resolution, respectively (Table S1). In both isomorphous structures, the asymmetric unit contains one PAmCherry1 protein chain with total solvent accessible area of approximately 9,880 Å2 (Fig. S2). Contacts between symmetry-rel ...
Textures in komatiites and variolitic basalts.
... line or point. Each fibre has a crystallographic orientation slightly different to that of its neighbour; hence their “Maltese cross” extinction pattern when viewed under cross-nicols of the petrographic microscope. Undoubtedly the term spherulite is poor because spherulites need not be spherical (F ...
... line or point. Each fibre has a crystallographic orientation slightly different to that of its neighbour; hence their “Maltese cross” extinction pattern when viewed under cross-nicols of the petrographic microscope. Undoubtedly the term spherulite is poor because spherulites need not be spherical (F ...
Multiscale simulations reveal conserved patterns of lipid interactions
... structures are also detected in the simulations, with the vast majority forming contacts that persist throughout the simulations. Although it is unsurprising that the outer surface of the protein forms the majority of the contacts with the lipid, the exact nature and residue identities of the intera ...
... structures are also detected in the simulations, with the vast majority forming contacts that persist throughout the simulations. Although it is unsurprising that the outer surface of the protein forms the majority of the contacts with the lipid, the exact nature and residue identities of the intera ...
Comparison of Functionals for Metal Hexaboride Band Structure
... As mentioned above, both Longuet-Higgins and de V. Roberts [16] and Yamazaki [17], use tight binding approximations to describe metal hexaboride band structures. Later, Perkins et al. [30] attribute the difference between their results and those of Yamazaki [17] to inclusion of overlap between Bloch ...
... As mentioned above, both Longuet-Higgins and de V. Roberts [16] and Yamazaki [17], use tight binding approximations to describe metal hexaboride band structures. Later, Perkins et al. [30] attribute the difference between their results and those of Yamazaki [17] to inclusion of overlap between Bloch ...
Nonlinear Raman-Nath second harmonic generation with structured
... compensation of an reciprocal vector of NPCs without wavelength limitation. Both onedimensional (1D) and two-dimensional (2D) structures have widely been fabricated to realize optical parametric processes in quasi-phase matching (QPM) manners [3–6]. More recently, transverse schemes (perpendicular t ...
... compensation of an reciprocal vector of NPCs without wavelength limitation. Both onedimensional (1D) and two-dimensional (2D) structures have widely been fabricated to realize optical parametric processes in quasi-phase matching (QPM) manners [3–6]. More recently, transverse schemes (perpendicular t ...
STRUCTURE AND CRYSTALLOGRAPHIC TEXTURE IN THE Cu
... ference in a grain size observed between HPT, ECAP and ECAP-K samples can be explained by variation in the level of shear deformation imposed on the samples. According to the Cu-Cr phase diagram [22] the chromium particles precipitate in the coarse-grained samples after quenching and aging at a temp ...
... ference in a grain size observed between HPT, ECAP and ECAP-K samples can be explained by variation in the level of shear deformation imposed on the samples. According to the Cu-Cr phase diagram [22] the chromium particles precipitate in the coarse-grained samples after quenching and aging at a temp ...
Significance of grain boundaries for transport phenomena in
... In addition to their higher efficiency, fuel cells may also be a key to replacing fossil fuels with renewable alternatives due to their ability to run on pure hydrogen. In the ideal scenario, known as the hydrogen economy, hydrogen could be sustainably produced from e.g. solar-powered photocatalytic ...
... In addition to their higher efficiency, fuel cells may also be a key to replacing fossil fuels with renewable alternatives due to their ability to run on pure hydrogen. In the ideal scenario, known as the hydrogen economy, hydrogen could be sustainably produced from e.g. solar-powered photocatalytic ...
PHASE COMPOSITION AND MICROSTRUCTURE OF Ti-6Al
... Dependence of flow stress of titanium alloys on hydrogen content and deformation temperature in the two-phase (α+β) area results from the interaction of the following processes: increase of β-phase volume ratio, its solid-solution hydrogen hardening and softening of α-phase by hydrogen [7-9]. As a r ...
... Dependence of flow stress of titanium alloys on hydrogen content and deformation temperature in the two-phase (α+β) area results from the interaction of the following processes: increase of β-phase volume ratio, its solid-solution hydrogen hardening and softening of α-phase by hydrogen [7-9]. As a r ...
Optical properties and structure of most stable subnanometer (ZnAs2)
... and typical nanocrystals. Usually, the structure of nanoclusters is different from the structure of nanocrystals, which resembles the structure of bulk crystals [6]. As a rule the methods of calculation of the structure of electronic states of nanocrystals, which are based on the effective mass appr ...
... and typical nanocrystals. Usually, the structure of nanoclusters is different from the structure of nanocrystals, which resembles the structure of bulk crystals [6]. As a rule the methods of calculation of the structure of electronic states of nanocrystals, which are based on the effective mass appr ...
research papers
... of 7.5 mg ml1 metal-free insulin adjusted to pH 2.0 using aqueous HCl was mixed with 2 ml reservoir solution and equilibrated in a hanging drop against 1 ml reservoir solution with a composition of 0.05 M sodium citrate, 15%(v/v) acetone and 15 mM nickel(II) acetate or 7.5 mM copper(II) acetate, re ...
... of 7.5 mg ml1 metal-free insulin adjusted to pH 2.0 using aqueous HCl was mixed with 2 ml reservoir solution and equilibrated in a hanging drop against 1 ml reservoir solution with a composition of 0.05 M sodium citrate, 15%(v/v) acetone and 15 mM nickel(II) acetate or 7.5 mM copper(II) acetate, re ...
Final Defense ABSTRACT - Chemistry at Illinois
... class of compounds with several potential technological uses.11 For example, the volatility of ...
... class of compounds with several potential technological uses.11 For example, the volatility of ...
Defect accumulation behaviour in hcp metals and alloys - PolyU
... microstructure, and their dual function as both sources and sinks of point defects have to be taken into account. At low temperatures they are predominantly sinks which mainly acts as recombination centers, and at high temperatures they are predominantly sources, particularly the PVCs. The dierence ...
... microstructure, and their dual function as both sources and sinks of point defects have to be taken into account. At low temperatures they are predominantly sinks which mainly acts as recombination centers, and at high temperatures they are predominantly sources, particularly the PVCs. The dierence ...
A Tale of Two Limits: Fundamental Properties of Photonic-Crystal Fibers
... (note that the equations in this manuscript are for isotropic materials only). However, the above analysis suggests a third way, one that does not seem to have been considered in the literature: one forms a structure in which the cladding is periodic but asymmetric (e.g. a triangular lattice of elli ...
... (note that the equations in this manuscript are for isotropic materials only). However, the above analysis suggests a third way, one that does not seem to have been considered in the literature: one forms a structure in which the cladding is periodic but asymmetric (e.g. a triangular lattice of elli ...
Including the effects of pressure and stress in thermodynamic functions
... One of the outcomes of the thermodynamic analysis is that the pressure scale determined by Dorogokupets and Oganov [31] is consistent with SW experimental data on the Hugoniot, covering a temperature range between roomtemperature and about 13 000 K. To arrive at an accurate representation of experim ...
... One of the outcomes of the thermodynamic analysis is that the pressure scale determined by Dorogokupets and Oganov [31] is consistent with SW experimental data on the Hugoniot, covering a temperature range between roomtemperature and about 13 000 K. To arrive at an accurate representation of experim ...
Crystal structure
In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms, ions or molecules in a crystalline liquid or solid. It describes a highly ordered structure, occurring due to the intrinsic nature of its constituents to form symmetric patterns.The crystal lattice can be thought of as an array of 'small boxes' infinitely repeating in all three spatial directions. Such a unit cell is the smallest unit of volume that contains all of the structural and symmetry information to build-up the macroscopic structure of the lattice by translation.Patterns are located upon the points of a lattice, which is an array of points repeating periodically in three dimensions. The lengths of the edges of a unit cell and the angles between them are called the lattice parameters. The symmetry properties of the crystal are embodied in its space group.A crystal's structure and symmetry play a role in determining many of its physical properties, such as cleavage, electronic band structure, and optical transparency.