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... valence atomic orbitals [3,4]. Molecular Orbital, MO, theory, an early alternative to VB theory, has a less obvious connection to molecular structural formulas and has been more usually associated with electronic spectroscopy. It was shown in 1935 by Van Vleck and Sherman that VB theory and MO theor ...
... valence atomic orbitals [3,4]. Molecular Orbital, MO, theory, an early alternative to VB theory, has a less obvious connection to molecular structural formulas and has been more usually associated with electronic spectroscopy. It was shown in 1935 by Van Vleck and Sherman that VB theory and MO theor ...
Compact Ion-source Based on Superionic Rubidium Silver Iodide
... potential above 10 kV, established between emitter and collector, silver positive ions move through the electrolyte towards the emitting surface, where they are emitted from and accelerated. Via partial redox reaction occurring at the silver/RbAg4I5 interface, silver atoms are oxidised into Ag+ ions ...
... potential above 10 kV, established between emitter and collector, silver positive ions move through the electrolyte towards the emitting surface, where they are emitted from and accelerated. Via partial redox reaction occurring at the silver/RbAg4I5 interface, silver atoms are oxidised into Ag+ ions ...
The low-spin black hole in LMC X-3 Please share
... Leong et al. (1971) discovered LMC X-3 during the first year of the Uhuru mission. In 1983, Cowley et al. (1983) showed via dynamical observations that the compact X-ray source in this 1.7 day binary is a black hole (BH). In Orosz et al. (2014) we use new optical data to derive a much improved dynam ...
... Leong et al. (1971) discovered LMC X-3 during the first year of the Uhuru mission. In 1983, Cowley et al. (1983) showed via dynamical observations that the compact X-ray source in this 1.7 day binary is a black hole (BH). In Orosz et al. (2014) we use new optical data to derive a much improved dynam ...
L. Zampieri - Astrophysics Group of the University of Crete
... mprog(Z) minimum MS mass to form a BH through direct collapse from Portinari et al. (98) and Belczynski et al. (10) mprog(0.3 Zsun)=80 Msun; mprog(0.01 Zsun)=60 Msun Distribution of BHs IMF (Kroupa 2001) above mprog ...
... mprog(Z) minimum MS mass to form a BH through direct collapse from Portinari et al. (98) and Belczynski et al. (10) mprog(0.3 Zsun)=80 Msun; mprog(0.01 Zsun)=60 Msun Distribution of BHs IMF (Kroupa 2001) above mprog ...
SOLID STATE CHEMISTRY Lecture/Lession Plan
... the electrical neutrality the vacancy of the lattice point is filled up by an electron then the defect is called anion vacancy or F center. From the figure it is clear that though the crystal is electrically neutral, there is excess of metal ion. Such type of metal excess defect (due to anion vacanc ...
... the electrical neutrality the vacancy of the lattice point is filled up by an electron then the defect is called anion vacancy or F center. From the figure it is clear that though the crystal is electrically neutral, there is excess of metal ion. Such type of metal excess defect (due to anion vacanc ...
Final
... Please circle all final answers. For full credit you must report all responses to the correct number of significant figures. Include units and substances where appropriate. You may use only the basic arithmetic functions of ...
... Please circle all final answers. For full credit you must report all responses to the correct number of significant figures. Include units and substances where appropriate. You may use only the basic arithmetic functions of ...
Electronic Transport Properties of Stabilized Amorphous Selenium X
... used in direct conversion flat panel digital x-ray detectors. The performance of these detectors is determined, in part, by the electronic transport properties of the a-Se photoconductor layer – namely, the charge carrier mobility µ and the deep trapping lifetime τ. The product of the mobility and t ...
... used in direct conversion flat panel digital x-ray detectors. The performance of these detectors is determined, in part, by the electronic transport properties of the a-Se photoconductor layer – namely, the charge carrier mobility µ and the deep trapping lifetime τ. The product of the mobility and t ...
Galactic Molecular Clouds and Their Place in the
... that of Hydrogen are found to be in their ionic forms, which provide an abundance of electrons within the cloud. The main tracer of the DACs is the 21cm HI line,Dickey & Lockman (1990) .The scarcity of molecular matter in implies a lack of chemistry occurring in the DAC but, as we have seen, the mer ...
... that of Hydrogen are found to be in their ionic forms, which provide an abundance of electrons within the cloud. The main tracer of the DACs is the 21cm HI line,Dickey & Lockman (1990) .The scarcity of molecular matter in implies a lack of chemistry occurring in the DAC but, as we have seen, the mer ...
The many faces of the Bohr atom
... picture of the carbon atom “as a positive nucleus with rings of electrons rotating around it in a single plane.”14 However, this was no longer Bohr’s view. Neither was it a view shared by the majority of quantum physicists, who by then had arrived at the conclusion that the atom must have a spatial ...
... picture of the carbon atom “as a positive nucleus with rings of electrons rotating around it in a single plane.”14 However, this was no longer Bohr’s view. Neither was it a view shared by the majority of quantum physicists, who by then had arrived at the conclusion that the atom must have a spatial ...
Matter in strong magnetic fields - the Max Planck Institute for the
... The properties of matter are drastically modified by strong magnetic fields, BⰇm e2 e 3 c/ប 3 ⫽2.35 ⫻109 G ( 1 G⫽10⫺4 T) , as are typically found on the surfaces of neutron stars. In such strong magnetic fields, the Coulomb force on an electron acts as a small perturbation compared to the magnetic f ...
... The properties of matter are drastically modified by strong magnetic fields, BⰇm e2 e 3 c/ប 3 ⫽2.35 ⫻109 G ( 1 G⫽10⫺4 T) , as are typically found on the surfaces of neutron stars. In such strong magnetic fields, the Coulomb force on an electron acts as a small perturbation compared to the magnetic f ...
Chemical Bonding
... known as limestone. Calcium carbonate, as its name and formula suggest, is a compound made up of three different elements. In addition to its crystalline structure, calcium carbonate has high melting and boiling points and dissolves to some extent in water. Many other compounds have similar physical ...
... known as limestone. Calcium carbonate, as its name and formula suggest, is a compound made up of three different elements. In addition to its crystalline structure, calcium carbonate has high melting and boiling points and dissolves to some extent in water. Many other compounds have similar physical ...
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.