Synthesis of 1-(phenyl-o-carboranyl)-π-allyliron tricarbonyl bromide and 1-(methyl-o-carboranyl)-π-1,3-butadieneiron tricarbonyl

Conclusions 1-(Phenyl-o-carboranyl)--allyliron tricarbonyl bromide was synthesized from 1-(phenyl-o-carboranyl)-3-bromo-1-propene and Fe₂(CO)₉, while 1-(methyl-o-carboranyl)--1,3-butadieneiron tricarbonyl was synthesized from 1-(methyl-o-carboranyl)-1,3-butadiene and Fe(CO)₅.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 2050–2052, September, 1971.     

Effect of High Temperature Thermomechanical Treatment on the Tendency of Low-Activation 12% Cr Ferritic-Martensitic Steel EK-181 to Low-Temperature Embrittlement

Russian Physics Journal - The effect of high-temperature thermomechanical treatment (HTMT) with deformation in the austenitic region on the regularities of low-temperature embrittlement of...     

The cauchy problem for a class of evolution systems of the parabolic type with unbounded coefficients

For a class of evolution systems of the parabolic type with unbounded coefficients, we study the properties of the fundamental solution matrices and establish the well-posed solvability of the Cauchy problem for these systems in spaces of distributions similar to Gevrey ultradistributions. For a subclass of such systems, we describe the maximal classes of well-posed solvability of the Cauchy problem.     

Principle of localization of solutions of the Cauchy problem for one class of degenerate parabolic equations of Kolmogorov type

In the case where initial data are generalized functions of the Gevrey-distribution type for which the classical notion of equality of two functions on a set is well defined, we establish the principle of local strengthening of the convergence of a solution of the Cauchy problem to its limit value as t → +0 for one class of degenerate parabolic equations of the Kolmogorov type with 2^?b \overrightarrow {2b} -parabolic part whose coefficients are continuous functions that depend only on t.     

The role of deep traps in luminescence of anion-defective α-Al2O3: C crystals

This paper presents the results of a study of deep traps responsible for thermally stimulated luminescence in single crystals of the anion-defective corundum α-Al₂O₃: C observed at temperatures of about 703, 778, 830, and 903 K. The effect of the filling of these traps by carriers of both signs on the sensitivity to radiation of the main thermoluminescence peak at 450 K, optically stimulated luminescence, and phototransferred thermoluminescence has been investigated. The results obtained are treated in terms of a model involving interactive competition of traps of different depth.     

Cauchy problem for one class of pseudodifferential systems with entire analytic symbols

Using functions convex downward, we describe a class of pseudodifferential systems with entire analytic symbols that contains éidel’man parabolic systems of partial differential equations with continuous time-dependent coefficients. We prove a theorem on the correct solvability of the Cauchy problem for these systems in the case where initial data are generalized functions. We also establish the principle of localization of a solution of this problem. __________ Translated from Ukrains’kyi Matematychnyi Zhurnal, Vol. 58, No. 9, pp. 1211–1233, September, 2006.     

Field emission from quantum size GaN structures

Whisker structures and quantum dots fabricated by photoelectrochemical (PEC) etching of undoped and doped metalorganic chemical vapor deposition (MOCVD)-grown GaN (2×10¹⁷ or 3×10¹⁸ cm⁻³) are investigated in relation with their field-emission characteristics. Different surface morphologies, corresponding to different etching time and photocurrent, results in different field-emission characteristics with low turn-on voltage down to 4 V/μm and the appearance of quantum-size effect in the I–V curves.     

Complete Solvability of the Cauchy Problem for Petrovskii Parabolic Equations in S-Type Spaces

We establish the correct solvability (in both directions) of the Cauchy problem for Petrovskii parabolic equations with time-dependent coefficients in S-type spaces. We also prove that a solution of this problem stabilizes to zero in the sense of the topology of these spaces.