In recent years asymmetric cross section aluminum alloy stock has been finding increasing use in various industrial manufacturing areas such as general structures and automotive components. In these areas, components are generally required to have complex curved configuration and, as such, a bending process is required during manufacture. Undesirable deformation in bending processes such as fla...

The open-channel structure of the N-methyl-D-aspartate (NMDA) receptor was investigated to explain apparently conflicting interpretations about ionic interactions within the pore. Patch-clamp techniques were applied to tissue-cultured rat hippocampal neurons from the CA1 region. A wide range of ammonium derivatives was studied to learn about the structure of the pore from permeability and open-...

in this study, farm level technical efficiency (te) and its determinants were investigated. a stochastic cobb-douglas (cd) production frontier was used to provide estimates of input-oriented te for a sample of 100 rain fed farms in two palestinian governorates. empirical findings showed that the estimated te of the farms in the pooled sample ranged from 35.7 to 95.6%, with a mean value of 72.2%...

We review the theoretical methods to evaluate fusion cross sections in collisions of weakly bound nuclei. We point out that in such collisions the coupling to the breakup channel leads to the appearance of different fusion processes. The extension of the coupledchannel method to coupling with the continuum is the most successful treatment for these collisions. However, evaluating separate cross...

Inclusive production of D(2010) mesons in deep inelastic scattering has been measured using ep and ep data obtained with the ZEUS detector at HERA using integrated luminosities of 16.7 and 65.2pb, respectively. The decay channel D → Dπ with D → Kπ and corresponding antiparticle decays were used to identify D mesons. The D cross sections in ep and ep interactions agree with NLO QCD predictions, ...

Eta meson production in the proton-proton scattering is dominated by the low-mass meson exchange. We present a brief study on how the type of the exchanged mesons within coupled-channel and multi-resonance model influences the scattering observables. We show under which circumstances the eta exchange may explain the shape of the observed cross sections, and present a few selected results: total...

The reaction γp → πp is investigated in the energy range above the resonance region. The amplitudes include the leading Regge singularities in the cross-channel and correctly describe the differential cross section for beam energies above 4 GeV and for momentum transferred above −3 GeV. The energy dependence of the beam asymmetry and the reaction γn → πn seem is quantitative consistent with the...

The deeply virtual Compton scattering reaction has been investigated in the Hall A of the Jefferson Laboratory by measuring longitudinally polarized (~e, e′γ) cross sections, in the valence quark region, for protons and neutrons. In the proton channel, experimental results strongly support the factorization of the cross section at Q as low as 2 GeV, opening the path to sytematic measurements of...

The nuclear rainbow observed in the elastic $$\alpha $$ -nucleus and light heavy-ion scattering is proven to be due refraction of wave by a deep, attractive real optical potential. pattern, established as broad oscillation Airy minima cross section, originates from an interference refracted far-side amplitudes. It natural expect similar pattern also inelastic nucleus–nucleus system that exhibit...

We investigate the possibility of studying strange hidden-charm pentaquark state ${P}_{cs}(4459)$ by photon-induced reactions on a proton target in an effective Lagrangian approach. The production process is described $t$-channel ${K}^{\ensuremath{-}}$ exchange, $u$-channel $\mathrm{\ensuremath{\Lambda}}$ contract term, and $s$- channel nucleon pole. Our theoretical approach based assumption th...