The S-matrix in the static limit of a dispersion relation is a matrix of a finite order N of meromorphic functions of energy ω in the plane with cuts (−∞,−1], [+1,+∞). In the elastic case it reduces to N functions Si(ω) connected by the crossing symmetry matrix A. The scattering of a neutral pseodoscalar meson with an arbitrary angular momentum l at a source with spin 1/2 is considered (N=2). T...

The asymmetric unit of the title compound, C(18)H(20)Cl(6)N(2)Si(2), contains one half of the centrosymmetric mol-ecule. The two benzene rings are perpendicular to the plane of Si-N-C=C-N-Si fragment, making a dihedral angle of 89.9 (1)°. The crystal packing exhibits short inter-molecular Cl⋯Cl contacts of 3.3119 (17) Å.

the effect of single and double-layer anti-reflective coatings on efficiency enhancement of silicon solar cells was investigated. the reflectance of different anti-reflection structures were calculated using the transfer matrix method and then to predict the performance of solar cells coated by these structures, the weighted average reflectance curves were used as an input of a pc1d simulation....

Tetragonal magnetostriction (λγ,2) and elastic constants (c′, c44, and c11) for Fe100−xSixwere measured as a function of temperature (T). Compositions corresponding to the disordered A2 (x = 5), ordered D03 (x = 19.8), and mixed (x = 11.6) phases, were investigated. The magnetoelastic coupling (−b1) was determined for 77 < T < 300 K and compared with those of Fe-Ga, Fe-Ge, and Fe-Al. Both λγ,2(...

Aluminum and silicon are usually abundant in the soil and most plants are affected by them. Therefore, in the present study, the effect of the interaction of Si (0 and 2 mM) and low concentrations of Al (0, 50, 100, and 150 µM) on some physiological parameters of Zea mays var. Merit were investigated and were analyzed by cluster heatmaps for better interpretation of results. Results showed that...

in order to study the effects of foliar application of si (5/1000 ratio), k (2/1000 ratio) and zn (2/1000 ratio) on rice (cv. tarom hashem), an on-farm experiment carried out based on randomized complete block design with three replications in 2012. some traits such as paddy yield and yield components, neck blast disease and stem borer damage were evaluated. results showed that the effect of fo...

The crystal structure of Ci2HiiN2SiCl3 (monoclinic, P2i/m, Z = 2, with a: 9.284(4), b: 7.226(2), c: 10.832(5) Ä, ß = 115.14(3)°) was refined to R(F) 0.035 from 1228 independent reflections. A trigonal bipyramidal, pentacoordinate silicon is observed. The chelated complex shows two different Si-N bonds, a coordinative bond (1.984(2) A) between Si and N on the axial position and a Si-N single bon...

Let Si be a random walk with standard exponential increments. We call P k i=1 Si its k-step area. The random variable inf k≥1 2 k(k+1) P k i=1 Si plays important role in the study of so-called one-dimensional sticky particles model. We find the distribution of this variable and prove that P  inf k≥1 2 k(k + 1) k X i=1 Si ≥ t ff = P  inf k≥1 k X i=1`Si − it´≥ 0 ff = √ 1 − t e −t/2 for 0 ≤ t ≤ ...