Challenges and opportunities:•The paramagnetic zero-valent species, middle-size clusters, heavier group 13 congeners are untrodden.•Investigation of the ability species to transfer elemental fragments En(0) other substrates remains underdeveloped.•A stepwise catenation aimed at a precise construction main-group allotropes could offer an exciting new avenue for materials science. This perspectiv...

Air broadening and shift coefficients together with narrowing first order line mixing parameters were measured for 166 lines belonging to J″ manifolds of the P (J″=2−11), Q (J″=1−12) R (J″=0−11) branches ν3 band 12CH4 near 3.3 μm. These measurements carried out using a non-linear multispectrum least squares fitting technique. A hard collision Dicke narrowed shape model including Rosenkranz was ...

Abstract This paper deals with M 2 -signals, namely multivariate (or vector-valued) signals defined over a multidimensional domain. In particular, we propose an optimization technique to solve the covariance extension problem for stationary random vector fields. The Itakura–Saito distance is employed as criterion select solution among spectra satisfying finite number of moment constraints. orde...

In light water nuclear reactors, waterside corrosion of the cladding material leads to production hydrogen, a fraction which is picked up by zirconium and precipitates into brittle hydride particles. These nanoscale particles aggregate mesoscale clusters. The principal stacking direction hydrides precipitated in tube changes from circumferential absence applied stress radial under stress. A qua...

Dynamic nuclear polarization in the liquid state via Overhauser effect is enabled by fluctuations of electron-nuclear hyperfine interaction. Fermi contact (or scalar) coupling can be modulated molecular collisions on timescales a few picoseconds and shorter, enabling an effective transfer even at high magnetic fields. However, only studies have presented theoretical analysis scalar mechanism. H...

Asymmetry along with heteroscedasticity or contamination often occurs the growth of data dimensionality. In ultra-high dimensional analysis, such irregular settings are usually overlooked for both theoretical and computational convenience. this paper, we establish a framework estimation in high-dimensional regression models using Penalized Robust Approximated quadratic M-estimators (PRAM). This...

Penttila and Williford constructed a 4-class association scheme from generalized quadrangle with doubly subtended subquadrangle. We show that an appropriate parameters satisfying some assumption about maximal cliques must be the Penttila–Williford scheme.

Knots are idealized 1-dimensional loops that tangle themselves in 3-space. They have been studied, for more than 100 years, primarily as abstract mathematical objects even though the original interest in the subject seems to be based in physics. There is now interest in reinvesting the mathematical abstractions with physical-like properties such as thickness L] Si] DEJ] St] LSDR] or self-repell...

Correlation consistent basis sets for accurately describing core–core and core–valence correlation effects in atoms and molecules have been developed for the second row atoms Al–Ar. Two different optimization strategies were investigated, which led to two families of core–valence basis sets when the optimized functions were added to the standard correlation consistent basis sets (cc-pVnZ). In t...