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Estimation of the number of trays for natural gas triethylene glycol dehydration column
(Elsevier, Amsterdam, 2011)
The paper deals with the tray-to-tray method for determining the required number of trays in columns with intensive entrainment of liquid when the operating line of the "dry working regime" is not straight and with a small ...
Gaussian interval quadrature rule for exponential weights
(Elsevier Science Inc, New York, 2012)
Interval quadrature formulae of Gaussian type on R and R+ for exponential weight functions of the form w(x) = exp(-Q(x)), where Q is a continuous function on its domain and such that all algebraic polynomials are integrable ...
Determination of gun propellants erosivity: Experimental and theoretical studies
(Elsevier Science Inc, New York, 2010)
Requirements for higher and higher performances of contemporary guns intensify investigations concerning influence of various factors on barrel erosion. The most important parameter for the life of the gun is the type of ...
Ion mobilities and transport cross sections of daughter negative ions in N2O and N2O-N-2 mixtures
(IOP Publishing Ltd, Bristol, 2013)
A pulsed Townsend apparatus is used to measure the mobility of a single negative ion species in N2O and N2O-N-2 gas mixtures. The range of the density-normalized electric field, E/N, is 6.5-100 Td (1 Townsend = 10(-17) V ...
Time optimal motions of mechanical system with a prescribed trajectory
(Springer, Dordrecht, 2011)
The problem of time minimization of a holonomic scleronomic mechanical system on a prescribed trajectory between two specified positions in configuration space is solved. The generalized force with restricted coordinates ...
Evaluation of adhesion/cohesion bond strength of the thick plasma spray coatings by scratch testing on coatings cross-sections
(Elsevier Sci Ltd, Oxford, 2011)
The possibility of adhesion/cohesion bond strength evaluation of thick plasma spray coatings with scratch tester, according to the ISO working draft (ISO/WD 27307), was analyzed and compared with the standard test method ...
On the instability of equilibrium of nonholonomic systems with nonhomogeneous constraints
(Pergamon-Elsevier Science Ltd, Oxford, 2010)
The first Lyapunov method, extended by V. Kozlov to nonlinear mechanical systems, is applied to the study of the instability of the equilibrium position of a mechanical system moving in the field of potential and dissipative ...
Error bounds of certain Gaussian quadrature formulae
(Elsevier Science Bv, Amsterdam, 2010)
We study the kernel of the remainder term of Gauss quadrature rules for analytic functions with respect to one class of Bernstein-Szego weight functions. The location on the elliptic contours where the modulus of the kernel ...
Bucket chain excavator: Failure analysis and redesign of the counterweight boom supporting truss columns
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
The supporting truss of the counterweight boom is a vital part of the bucket chain excavator's (BCE) superstructure. The occurrence and propagation of cracks in the supporting truss columns' heads may lead to BCE collapse. ...
Maximum of the modulus of kernels of Gaussian quadrature formulae for one class of Bernstein-Szego weight functions
(Elsevier Science Inc, New York, 2012)
We continue with the study of the kernels K-n(z) in the remainder terms R-n(f) of the Gaussian quadrature formulae for analytic functions f inside elliptical contours with foci at -/+ 1 and a sum of semi-axes rho > 1. The ...