Oscillator strengths and lifetimes of all energy levels of CuI, Agl and AuI were calculated using the Coulomb approximation (for The first time), and then compared with available data

Quadratic Stark constants of neutral copper spectral lines for all s,p, and d levels are calculated using the Coulomb approximation. These results are compared with existing data and, generally, good agreement is observed

The Coulomb problem for vector bosons W incorporates a well known difficulty; the charge of the boson localized in a close vicinity of the attractive Coulomb center proves be infinite. This fact contradicts the renormalizability of the Standard Model, which presumes that at small distances all physical quantities are well defined. The paradox is shown to be resolved by the QED vacuum polarizati...

It is well known that the Soft-Wall holographic model for QCD successfully reproduces not only linear Regge spectrum, but also, via Wilson confinement criterion, ''linear plus Coulomb'' potential similar to Cornell potential. This property could be interpreted as a counterpart of hadron string picture, where linearly rising and Regge-like spectrum are directly related. However, such relation do...

The mechanical properties of hydrate-bearing strata in clayey-silt sediments are significantly different from those either conventional reservoirs or sandy sediments, which poses great challenges for wellbore stability analyses. characteristics a deviated borehole during drilling (HBS-CS) remain to be studied. In this paper, an analysis the using Mohr–Coulomb (M-C) criterion and Drucker–Prager ...

Reasonable stope structural parameters are very important to ensure the safety and efficiency of mining. In this paper, based on elastic-plastic constitutive model Mohr-Coulomb strength criterion, reasonable span critical calculated by using simply supported beam theory mine room width calculation formula. PLAXIS2D finite element analysis software was used conduct numerical simulation research ...

While post-grouting is frequently reported to improve the engineering performance of piles, shear strength soil around piles not well understood. To investigate strengthening mechanism with permeation grouting, laboratory tests were carried out on homemade cement from aspects and microstructure characteristics. The evolution rule stress–shear displacement curve grouting different contents was a...

We present a separable expansion approximation method for Coulomblike potentials which is based on Schwinger variational principle and uses Coulomb-Sturmian functions as basis states. The new scheme provides faster convergence with respect to our formerly used non-variational approach. Both variational approaches and separable expansion schemes are extensively used in solving few-body problems....

In response to recent experimental studies we investigate Coulomb distortion effects on (e, e ′) reactions from medium and heavy nuclei for the case of electrons and positrons. We extend our previously reported full DWBA treatment of Coulomb distortions to the case of positrons for the 208 P b(e, e ′) reaction in the quasielastic region for a particular nuclear model. In addition, we use previo...

We report on transport measurement performed on a room-temperature-operating ultrasmall Coulomb blockade devices with a silicon island of sub5 nm. The charge stability at 300K exhibits a substantial change in slopes and diagonal size of each successive Coulomb diamond, but remarkably its main feature persists even at low temperature down to 5.3K except for additional Coulomb peak splitting. Thi...