Results 211 to 220 of about 92,954 (262)
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Angewandte Chemie International Edition in English, 1971
AbstractIn this review paper, ternary fission is defined as the break‐up of heavy nuclei into three fragments of approximately equal mass. This relatively new type of nuclear decay has been investigated intensively during the last decade. Muga has studied ternary fission induced by thermal neutrons in uranium.
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AbstractIn this review paper, ternary fission is defined as the break‐up of heavy nuclei into three fragments of approximately equal mass. This relatively new type of nuclear decay has been investigated intensively during the last decade. Muga has studied ternary fission induced by thermal neutrons in uranium.
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Christian Bioethics, 2006
Catholic opponents of abortion and embryonic stem cell research usually base their position on a hylomorphic account of ensoulment at fertilization. They maintain that we each started out as one-cell ensouled organisms. Critics of this position argue that it is plagued by a number of intractable problems due to fission (twinning) and fusion.
David, Hershenov, Rose J, Koch-Hershenov
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Catholic opponents of abortion and embryonic stem cell research usually base their position on a hylomorphic account of ensoulment at fertilization. They maintain that we each started out as one-cell ensouled organisms. Critics of this position argue that it is plagued by a number of intractable problems due to fission (twinning) and fusion.
David, Hershenov, Rose J, Koch-Hershenov
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Nature Reviews Neuroscience, 2018
Dendritic mitochondria in stimulated neurons undergo fission that is required for long-term potentiation.
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Dendritic mitochondria in stimulated neurons undergo fission that is required for long-term potentiation.
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The cross-section for u238 fission by fission neutrons fission neutrons
Journal of Nuclear Energy (1954), 1957Abstract The cross-section for U 238 fission by neutrons from the thermal-neutron-induced fission of U 235 has been measured to be (0·756 ± 0·008)/gn barn, where ν is the average number of neutrons emitted per U 235 fission. Used with the most recent value of ν for U 235 , ν = 2·46 ± 0·03, this gives 0·307 ± 0·005 barn for the U 238 fission cross-
R.B. Leachman, H.W. Schmitt
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Effect of multichance fission on fission timescale
Journal of Physics G: Nuclear and Particle PhysicsAbstract We performed a theoretical analysis of the effect of multichance fission on fission timescales. To this end, We used a one-dimensional Langevin dynamical model for fission to investigate a broad span of reactions with compound nuclear mass numbers ranging from 125 to 256.
Charmi Vadagama +3 more
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Cluster-fission, a new fission mode
Europhysics Letters (EPL), 2002Clusters heavier than those observed in the cluster-radioactivity of heavy nuclei can not only be formed in superheavy compound nuclei but also be immediately expelled, because the clusterization energy is very great. This process differs from cluster-radioactivity and constitutes a new type of fission reaction.
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On fission and the devolatilization of a moon of fission origin
Earth and Planetary Science Letters, 1978Abstract Observations of solar-type spectroscopic binary stars show that most of these objects were formed by rotational fission. By analogy, this empirical confirmation of the fission process is used to support the fission origin of the moon.
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Statistical theory of fission and fission asymmetry
Nuclear Physics, 1964Abstract The statistical theory of Bohr and Wheeler is used for the explanation of fission asymmetry. It is shown that the observable fission asymmetry is determined mainly by the number of degrees of freedom of the fissile nucleus at the moment of rupture. Good agreement is obtained with experimental data.
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Fission Energy Surfaces and Ternary Fission
Acta Physica Hungarica, 2001A three-center phenomenological model, able to explain qualitatively the recently obtained experimental results concerning the quasimolecu-lar stage of a light-particle accompanied fission process is presented. It was derived from the liquid drop model under the assumption that the aligned configuration, with the emitted particle between the light and ...
D.N. Poenaru +4 more
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Fission yields in spontaneous fission of Cf252
Journal of Inorganic and Nuclear Chemistry, 1955Abstract Spontaneous fission of Cf252 has been investigated by radiochemical determination of the yields of fifteen fission products ranging in mass number from 99 to 143. Fission is observed to be asymmetric with some indication of fine structure in the mass distribution associated with the 82-neutron shell.
L.E. Glendenin, E.P. Steinberg
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