PIXE analysis of the Mn-doped content in Ga1-xMnxN film grown by LP-MOVPE

Abstract

Enantioselective syntheses O 0031Structurally Well-Defined, Recoverable C 3 -Symmetric Tris(β-hydroxy phosphoramide)-Catalyzed Enantioselective Borane Reduction of Ketones. -The novel phosphoramide (Id) provides a robust catalyst for highly enantioselective reduction of prochiral ketones. It can be recovered and reused or recycled in situ which allows for large scale preparation of chiral secondary alcohols. -(DU*, D.-M.; FANG, T.; XU,

Analysis of Neutron Double-Differential Cross Sections for n + 12 C Reaction Below 30 MeV

“…W jπ b (n, E * , ε) is the emission rate of particle b at n exciton state in jπ channel with outgoing energy ε. W jπ T (n, E * ) is the total emission rate of the n exciton state in jπ channel, and E * stands for excited energy. P jπ (n) is the occupation probability at the n exciton state in the jπ channel, which is obtained by solving the jπ-dependent exciton master equation as follows: [5] d dt…”

“…But the excited levels of 9 Be will well-known decay into one neutron and two α particles spontaneously. The residual nucleus of (n, nα), (n, αn), and (n, 5 He) channels is 8 Be, which is unstable and will also separate into two alpha particles spontaneously, as the case of residual nucleus 5 He produced from (n, 2α) channel. Hence the (n, α), (n, nα), (n, αn), (n, 2α), and (n, 5 He) reaction channels will contribute to the (n, n3α) reaction channel, which may proceed via a number of different reaction channels, i.e., as a sequential two-body reaction or two-body breakup process.…”

“…Table 2 The level schemes E k (j π )Γ (level energy E k (MeV), spin j, parity π, and level width Γ (MeV) (or lifetime) of the residual nuclei 12 C, 12 B, 11 C, 11 B, 10 B, 10 Be, 9 Be, 8 Be, 8 Li, 7 Li, 6 Li, and 5 He for different reaction channels.…”

“…The analysis shows that the pre-equilibrium mechanism, exactly considered the conservation of energy, momentum and parity, dominates the whole reaction process. The contribution of the neutron emission from 5 He to total energy-angular spectra is considered properly as well. The more precise file-6 up to 30 MeV will be set up with this modified LUNF code.…”

Bayesian network-based modal frequency–multiple environmental factors pattern recognition for the Xinguang Bridge using long-term monitoring data

“…The product Dirichletian distribution, the conjugate prior with global and local independence, 53 is introduced where Γtrue(⋅true) is the Gamma function; and αij=false∑k=1 riαijk with αijk being the hyperparameters, representing the number of virtual samples belonging to the category of Xi=k and πtrue(Xitrue)=j. A popular choice for the hyperparameter is αijk=1, that is, a uniform prior over the parameters of Xi for each value combination of πtrue(Xitrue).…”