نتایج جستجو برای: varkesh and beheshtabad sub
تعداد نتایج: 16863858 فیلتر نتایج به سال:
This systematic study includes physical–chemical characterisation of nanomaterials, arsenic adsorption assays, mechanism proposal, and acute toxicity assays with Daphnia magna .
Results of magnetization and high-field electron spin resonance (ESR) studies of the new spin-1 Haldane-chain material [Ni(C2H8N2)2NO2] (BF4) (NENB) are reported. A definite signature of the Haldane state in NENB was obtained. From the analysis of the frequency–field dependence of magnetic excitations in NENB, the spin-Hamiltonian parameters were calculated, yielding 1/kB = 17.4 K, g‖ = 2.14, D...
We report on the superconductivity in ternary transition metal tellurides Ta2Pd3Te5 and Nb2Pd3Te5, which have a one-dimensional crystal structure. Single-crystalline polycrystalline samples of show nonmetallic electron conduction, while Ti or W doping results metallic behavior with bulk superconducting at 2–4 K. In contrast, are found to be isostructural Ta2Pd3Te5, 3.3 The structure physical pr...
Abstract. Absorption cross sections of emerging greenhouse gases (GHGs) were measured to estimate the radiative efficiency using high-resolution Fourier transform infrared spectroscopy (HR-FTIR). For quantitative spectroscopy, Beer–Lambert parameters absorber pressure, temperature, and optical path length (OPL) accurately determined be traceable primary standards. The OPL multipass cell mounted...
Borosulfates are an expanding class of silicate-analogous materials. We report the syntheses and crystal structures two unconventional cadmium borosulfates. Cd[B2O(SO4)3] crystallises in a new structure type space group Pnma (no. 62, a=896.92(8), b=1152.0(1), c=872.75(8) pm, 1380 refl., 94 ref. param., wR2=0.112). Cd4[B2O(SO4)6] adapts α-Mg4[B2O(SO4)6]-type with P 147, a=822.22(4), c=797.88(5) ...
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