نتایج جستجو برای: fission reaction
تعداد نتایج: 426534 فیلتر نتایج به سال:
C-tail anchored protein FIS1 is a vital agent in the mitochondrial fission reaction. Recently FIS1 has been shown to be localized both to mitochondria and peroxisomes (fission and fragmentation, respectively). The aim of this project was to analyze the import mechanism of FIS1 using biochemical and molecular cell biological approaches.
Fission fragments from 1 A GeV U projectiles irradiating a hydrogen target were investigated by using the fragment separator FRS for magnetic selection of reaction products including ray-tracing and E-ToF techniques. The momentum spectra of identi ed fragments were analysed to provide isotopic production cross sections, ssion-fragment velocities and recoil momenta of the ssioning parent nuclei....
Neutron-induced fission cross sections of 238U and 235U are used as standards in the fast neutron region up to 200 MeV. A high accuracy of the standards is relevant to experimentally determine other neutron reaction cross sections. Therefore, the detection efficiency should be corrected by using the angular distribution of the fission fragments (FFAD), which are barely known above 20 MeV. In ad...
We have studied the fission-neutron emission competition in highly excited (274)Hs (Z=108) (where the fission barrier is due to shell effects) formed by a hot fusion reaction. Matching cross bombardments ((26)Mg+(248)Cm and (25)Mg+(248)Cm) were used to identify the properties of first chance fission of (274)Hs. A Harding-Farley analysis of the fission neutrons emitted in the (25)Mg,26+(248)Cm w...
Fission of cold nuclei is essentially a binary, adiabatic process, with only a minute probability for the emission of associated light charged clusters. In contrast, nuclear systems in fast heavy-ion reactions respond to significant mechanical and thermal stresses by exhibiting more complex, ternary and quaternary fission-like disintegration patterns. As an example, aligned ternary and quaterna...
Spallation residues and fission fragments from 1A GeV 238U projectiles irradiating a liquid hydrogen target were investigated by using the fragment separator at GSI for magnetic selection of reaction products including ray-tracing, energy-loss and time-of-flight techniques. The longitudinal-momentum spectra of identified fragments were analyzed, and evaporation residues and fission fragments co...
Dynamin is a large GTPase that forms a helical collar at the neck of endocytic pits, and catalyzes membrane fission (Schmid and Frolov, 2011; Ferguson and De Camilli, 2012). Dynamin fission reaction is strictly dependent on GTP hydrolysis, but how fission is mediated is still debated (Antonny et al., 2016): GTP energy could be spent in membrane constriction required for fission, or in disassemb...
The recently developed code FREYA (Fission Reaction Event Yield Algorithm) generates large samples of complete fission events, consisting of two receding product nuclei as well as a number of neutrons and photons, all with complete kinematic information. Thus it is possible to calculate arbitrary correlation observables whose behavior may provide unique insight into the fission process. We firs...
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