Point Spread Function of real Wolter-I X-ray mirrors
... is in general treated by means of geometrical optics, while the contribution of the latter – strongly dependent on the X-ray energy – is usually derived from the first order scattering theory. This approach, however, requires setting a sudden transition between these two treatments, whereas in the ge ...
... is in general treated by means of geometrical optics, while the contribution of the latter – strongly dependent on the X-ray energy – is usually derived from the first order scattering theory. This approach, however, requires setting a sudden transition between these two treatments, whereas in the ge ...
Electron-impact broadening parameters for Be II, Sr II, and Ba II
... case of cooler stars, such as solar type stars, for transitions involving higher principal quantum numbers (Tankosić et al. 2003, and references therein). For such investigations, accurate line-broadening parameters are required for a large number of lines for various elements and have frequently b ...
... case of cooler stars, such as solar type stars, for transitions involving higher principal quantum numbers (Tankosić et al. 2003, and references therein). For such investigations, accurate line-broadening parameters are required for a large number of lines for various elements and have frequently b ...
Influence of extreme ultraviolet radiation on the Pv ionization fraction
... 5 I N F L U E N C E O F X U V R A D I AT I O N O N P V I O N I Z AT I O N F R AC T I O N A N D W I N D M O D E L S Let us now turn our attention to P V. Without additional XUV sources, for β XUV = 0, our models agree with the conclusions of Krtička & Kubát (2009), according to which the X-rays do ...
... 5 I N F L U E N C E O F X U V R A D I AT I O N O N P V I O N I Z AT I O N F R AC T I O N A N D W I N D M O D E L S Let us now turn our attention to P V. Without additional XUV sources, for β XUV = 0, our models agree with the conclusions of Krtička & Kubát (2009), according to which the X-rays do ...
Table of Contents
... ___________________ that traps the solid particles while the liquid passes through in a process called filtering. Some simple methods also exist for separating homogeneous mixtures. A solid dissolved in a liquid solution can be separated by letting it dry out in the process of ___________________. M ...
... ___________________ that traps the solid particles while the liquid passes through in a process called filtering. Some simple methods also exist for separating homogeneous mixtures. A solid dissolved in a liquid solution can be separated by letting it dry out in the process of ___________________. M ...
Study Material - Class- XI- Chemistry
... According to this law equal volumes of gases at the same temperature and pressure should contain equal number of molecules. Dalton's Atomic Theory *All substances are made up of tiny, indivisible particles called atoms. *Atoms of the same element are identical in shape, size, mass and other properti ...
... According to this law equal volumes of gases at the same temperature and pressure should contain equal number of molecules. Dalton's Atomic Theory *All substances are made up of tiny, indivisible particles called atoms. *Atoms of the same element are identical in shape, size, mass and other properti ...
Composition-Tunable Properties Of CdSxTe1
... have different atomic sizes, (ii) these ions have different electronegativity values, and (iii) the binary structures have different lattice constants. Thus far, bowing effect has been confirmed for ternary quantum dots that were based on S/Se and Se/Te combinations of chalcogen atoms. Meanwhile, no ...
... have different atomic sizes, (ii) these ions have different electronegativity values, and (iii) the binary structures have different lattice constants. Thus far, bowing effect has been confirmed for ternary quantum dots that were based on S/Se and Se/Te combinations of chalcogen atoms. Meanwhile, no ...
Clumpy wind accretion in supergiant neutron star high mass X
... in this scenario by assuming that in this case the NS is accreting through the much more rarefied intra-clump medium, which particularly low density can only provide a feeble mass accretion rate onto the compact object. The first attempt to combine non-stationary stellar wind codes with calculations ...
... in this scenario by assuming that in this case the NS is accreting through the much more rarefied intra-clump medium, which particularly low density can only provide a feeble mass accretion rate onto the compact object. The first attempt to combine non-stationary stellar wind codes with calculations ...
Enthalpy change - Don`t Trust Atoms
... • Reactions that will take place on their own are called spontaneous. • If it is possible for a reaction to take place on their own, the reaction is feasible. • What determines if a reaction is feasible? • If ΔH (enthalpy) is negative, the reaction is exothermic • If ΔS (entropy) is positive, the re ...
... • Reactions that will take place on their own are called spontaneous. • If it is possible for a reaction to take place on their own, the reaction is feasible. • What determines if a reaction is feasible? • If ΔH (enthalpy) is negative, the reaction is exothermic • If ΔS (entropy) is positive, the re ...
T-Shaped Molecular Building Units in the Porous Structure of Ag(4,4
... zeolite-like attributes2 and others having important electronic3 and magnetic4 properties. One of the simplest strategies employed in the production of such 3-D networks is schematically illustrated in Figure 1a,b, where open-framework diamondlike networks have been achieved by the addition copolyme ...
... zeolite-like attributes2 and others having important electronic3 and magnetic4 properties. One of the simplest strategies employed in the production of such 3-D networks is schematically illustrated in Figure 1a,b, where open-framework diamondlike networks have been achieved by the addition copolyme ...
STUDY ON CRYSTALLINITY AND COMPACTIBILITY OF BINARY MIXTURE OF ANALGESIC
... Results: Evaluation of crystallites size of MA and MA-MCC mixture showed that the value of MA crystallite size is relatively fixed in all the peaks observed. Crystallite size of the AC and AC-MCC mixture also showed similar results with MA. From the elastic modulus curve, it was recognized that the ...
... Results: Evaluation of crystallites size of MA and MA-MCC mixture showed that the value of MA crystallite size is relatively fixed in all the peaks observed. Crystallite size of the AC and AC-MCC mixture also showed similar results with MA. From the elastic modulus curve, it was recognized that the ...
Low temperature synthesis of layered Na CoO and K
... 17. Tarascon J.-M, Ramesh R, Barboux P, Hegde M S, Hull G W, Greene L H, Giroud M, LePage Y, McKinnon W R, Waszcak J V and Schneemeyer L F 1989 Solid State Commun. 71 663 ...
... 17. Tarascon J.-M, Ramesh R, Barboux P, Hegde M S, Hull G W, Greene L H, Giroud M, LePage Y, McKinnon W R, Waszcak J V and Schneemeyer L F 1989 Solid State Commun. 71 663 ...
Sardinia_SA - Mullard Space Science Laboratory
... might be explained by stars that were stuck in outburst, as in the non-outbursting episodes of the Z ...
... might be explained by stars that were stuck in outburst, as in the non-outbursting episodes of the Z ...
1 Synthesis of a mixed-valent tin nitride and considerations of its
... and more than 100 of years of extensive and systematic research in solid-state chemistry. The search indicates that only the binary Sn(IV) material Sn3N424 is present in the ICSD crystallographic database.25 A nitrogen-poor amorphous analogue to Sn3N4 has been also reported in literature.26 As shown ...
... and more than 100 of years of extensive and systematic research in solid-state chemistry. The search indicates that only the binary Sn(IV) material Sn3N424 is present in the ICSD crystallographic database.25 A nitrogen-poor amorphous analogue to Sn3N4 has been also reported in literature.26 As shown ...
Metastable inner-shell molecular state
Metastable Innershell Molecular State (MIMS) is a class of ultra-high-energy short-lived molecules have the binding energy up to 1,000 times larger and bond length up to 100 times smaller than typical molecules. MIMS is formed by inner-shell electrons that are normally resistant to molecular formation. However, in stellar conditions, the inner-shell electrons become reactive to form molecular structures (MIMS) from combinations of all elements in the periodic table. MIMS upon dissociation can emit x-ray photons with energies up to 100 keV at extremely high conversion efficiencies from compression energy to photon energy. MIMS is predicted to exist and dominate radiation processes in extreme astrophysical environments, such as large planet cores, star interiors, and black hole and neutron star surroundings. There, MIMS is predicted to enable highly energy-efficient transformation of the stellar compression energy into the radiation energy.The right schematic illustration shows the proposed four stages of the K-shell MIMS (K-MIMS) formation and x-ray generation process. Stage I: Individual atoms are subjected to the stellar compression and ready for absorbing the compression energy. Stage II: The outer electron shells fuse together under increasing ""stellar"" pressure. Stage III: At the peak pressure, via pressure ionization K-shell orbits form the K-MIMS, which is vibrationally hot and encapsulated by a Rydberg-like pseudo-L-Shell structure. Stage IV: The K-MIMS cools down by ionizing (""boiling-off"") a number of pseudo-L-shell electrons and subsequent optical decay by emitting an x-ray photon. The dissociated atoms return their original atoms states and are ready for absorbing the compression energy.MIMS also can be readily produced in laboratory and industrial environments, such as hypervelocity particle impact, laser fusion and z-machine. MIMS can be exploited for highly energy-efficient production of high intensity x-ray beams for a wide range of innovative applications, such as photolithography, x-ray lasers, and inertial fusion.