AB:The subject of investigation of the doctoral dissertation is the calculation ofgeneralized inverses of matrices, as well as the connection between thegeneralized inverses of matrices with the optimization theory concepts. Thereare defined new iterative methods for solving optimization problems. Aspecial attention is devoted on defining new iterative methods for generalize...

the 1h and natural-abundance 13c-nmr spectra of 1-thiacyclooctan-3-one (1) have been measured from 25 to -100°c. coalescence is observed in the 1h-nmr spectra of (1) at about -80°c, and attributed to ring inversion in a boat-chair conformation, which is the predominant conformation of (1). the free energy of activation (dg¹) for this process is 9.2±0.2 kcal/mol. the 13c-nmr spectra of (1) is te...

Electromagnetic railgun is a launcher that relies on electrical energy to do work propel projectile high speed. In the military application of railgun, acquisition and adjustment movement characteristics, including acceleration velocity, are very important. order realize rapid calculation characteristics precise thrust, force for complex structure augmented quadrupole hyperbolic were studied by...

Three different approaches to calculating the forces acting on ferromagnets in a stationary magnetic field are considered. The results of by these methods test model compared with measurement data obtained using an experimental unit. Keywords: numerical simulation, magnetostatics, calculation force, Maxwell tensor.

Hierarchical force calculation algorithms (e.g. Greengard 1990) provide fast, general, and reasonably accurate approximations for gravity and other inverse-square forces. They fill the gap between direct sum methods, which are accurate and general but require O(N2) operations for a complete force calculation, and field methods, which have limited generality and accuracy but require only O(N) op...

In this paper, the problems of calculating and solution about electromagnetic fields were studied. An accurate theory model was established which can apply in high-performance numerical calculation. The new calculating method was proposed using Maxwell’s equations in the circumstances of that electromagnetic field is static, axial symmetric, without charge and current distribution, finite, diff...

In this paper, the problems of calculating and solution about electromagnetic fields were studied. An accurate theory model was established which can apply in high-performance numerical calculation. The new calculating method was proposed using Maxwell’s equations in the circumstances of that electromagnetic field is static, contains axial symmetric charge distribution, finite, differentiable a...

In this paper an approach for robot force/position control combined with an iterative learning control is proposed. Following high speed force trajectories in different repetitive robotic applications is a challenging field in robotics. Such applications require a desired contact force while following a position/orientation trajectory in the non-force controlled directions. For this a parallel ...