This paper presents explicit analytical solutions of the pressure coefficient and the pressure ratio across the oblique shock and expansion waves in function of the flow deflection angle. These new explicit pressure-deflection solutions can be efficiently used in solving applied aerodynamic problems in supersonic flows, such as the aerodynamics of airfoils and wings in supersonic-hypersonic flo...

Supersonic ion beam formation has been observed in a geometrically expanding low-pressure inductively coupled argon plasma. It is found that the ion beam is only observed below 3 mTorr and only when the discharge is operated in inductive mode. The geometrical expansion of the plasma induces density and potential gradients leading to the ion beam formation. The ion beam energy increases with dec...

This paper presents a Chinese short text classification method which considering extended semantic constraints and statistical constraints. This method uses “HowNet” tools to build the attribute set of concept. when coming to the part of feature expansion, we judge the collocation between the attribute words of original text and the characteristics before and after expansion as the semantic con...

This paper proposed APRPRS (Advanced Personalized Research Paper Recommendation System) based on UserProfile which is applied keyword expansion through semantic analysis. An algorithm for semantic keyword expansion is designed and implemented. Whenever collected research papers by topic are selected, a renewal of UserProfile increases the frequency of each domain, topic and keyword. Each ratio ...

We calculate the shear viscosity to entropy density ratio in pure SU(N) Yang-Mills theory using the strong coupling expansion. The result for the η/s ratio for temperatures around the phase transition is 0.056 for any value of N , however the systematic uncertainty is hard to estimate.

The combination of demand uncertainty and a lead time for adding capacity creates the risk of capacity shortage during the lead time. We formulate a model of capacity expansion for uncertain exponential demand growth and deterministic expansion lead times when there is an obligation to provide a specified level of service. The service level, defined in terms of the ratio of expected lead time s...

Remodeling of cell shape during morphogenesis is driven by the coordinated expansion and contraction of specific plasma membrane domains. Loss of this coordination results in abnormal cell shape and embryonic lethality. Here, we show that plasma membrane lipid composition plays a key role in coordinating plasma membrane contraction during expansion. We found that an increase in PI(4,5)P2 levels...

in this paper a modification of he's variational iteration method (vim) has been employed to solve dung and riccati equations. sometimes, it is not easy or even impossible, to obtain the first few iterations of vim, therefore, we suggest to approximate the integrand by using suitable expansions such as taylor or chebyshev expansions.

Palladium has a face-centered-cubic sublattice. Hydrogen atoms partially fill the octahedral holes to form PdH,. The fraction of interstitial sites occupied is dependent on the plating conditions, temperature and the partial pressure of hydrogen, etc. Although hydrogen atoms only occupy the interstitial’ sites, the sublattice of metal atoms in the PdH, is larger and simply an expansion of the p...

Two-loop electroweak corrections to the electron, muon, and tau lepton anomalous magnetic moments have been computed recently. Effects of hadronic contributions to the photon propagator in twoloop QED corrections have also been reanalysed. The common technique used in both calculations was asymptotic expansion of Feynman diagrams in the ratio of lepton mass to some heavy mass scale. In this tal...