<p align="justify">The modification of natural zeolite has been conducted by dealumination and desilication using HCl NaOH treatments as a catalyst for hydrocracking used cooking oil into biogasoline. This research aimed to study the effect on activity selectivity process. A variety catalysts was prepared applying 3, 6, 9 M in produce DNZ(3-1), DNZ(3-2) DNZ(3-3), DNZ(6-1), DNZ(6-2), DNZ(6...

The energy dependence of the concentration of primary displacements induced by protons and pions in diamond has been calculated in the energy range 50 MeV-50 GeV, in the frame of the Lindhard theory. The concentrations of primary displacements induced by protons and pions have completely different energy dependencies: the proton degradation is very important at low energies, and is higher than ...

The first fermi in a high energy nuclear collision. At very high energies, weak coupling, non–perturbative methods can be used to study classical gluon production in nuclear collisions. One observes in numerical simulations that after an initial " formation " time, the produced partons are on shell, and their subsequent evolution can be studied using transport theory. At the initial formation t...

An isospin analysis of B → ππ decays yields sin 2α, where α is the usual CKM angle α ≡ arg[−V td V * tb /(V ud V * ub)] without hadronic uncertainty if isospin is a perfect symmetry. Yet isospin symmetry is broken not only by electroweak effects but also by the u and d quark mass difference — the latter drives π 0 − η, η ′ mixing and converts the isospin-perfect triangle relation between the B ...

Mean field theory has an unexpected group theoretic mathematical foundation. Instead of representation theory which applies to most group theoretic quantum models, Hartree-Fock and Hartree-Fock-Bogoliubov have been formulated in terms of coadjoint orbits for the groups U (n) and O(2n). The general theory of mean fields is formulated for any arbitrary Lie algebra g of fermion operators. The mome...