Procedure for Integral Estimate of Young Peoples Human Capital (Assets) Development in a Constituent Entity of the Russian Federation

Necessity to study capacity of the young people as main holders of the innovation potential for development of the country and single out a statistical unit of the young people as a separate group to monitor and assess efficiency of youth policy pursued by the state is substantiated. Methodological approaches to estimating human capital (potential) development of the young people are considered, procedures of integral estimate of young peoples human development in a constituent entity of the Russian Federation have been developed.Обосновывается необходимость изучения потенциала молодежи как основного носителя инновационного потенциала развития страны и выделения в отдельную группу статистического учета молодежи в целях осуществления мониторинга и оценки эффективности государственной молодежной политики. Рассматриваются методические подходы оценки уровня развития человеческого капитала (потенциала) молодежи, разработана методика интегральной оценки уровня развития человеческого потенциала молодежи на уровне субъекта Российской Федерации

An anisotropic mesh adaptation method for the finite element solution of heterogeneous anisotropic diffusion problems

Heterogeneous anisotropic diffusion problems arise in the various areas of science and engineering including plasma physics, petroleum engineering, and image processing. Standard numerical methods can produce spurious oscillations when they are used to solve those problems. A common approach to avoid this difficulty is to design a proper numerical scheme and/or a proper mesh so that the numerical solution validates the discrete counterpart (DMP) of the maximum principle satisfied by the continuous solution. A well known mesh condition for the DMP satisfaction by the linear finite element solution of isotropic diffusion problems is the non-obtuse angle condition that requires the dihedral angles of mesh elements to be non-obtuse. In this paper, a generalization of the condition, the so-called anisotropic non-obtuse angle condition, is developed for the finite element solution of heterogeneous anisotropic diffusion problems. The new condition is essentially the same as the existing one except that the dihedral angles are now measured in a metric depending on the diffusion matrix of the underlying problem. Several variants of the new condition are obtained. Based on one of them, two metric tensors for use in anisotropic mesh generation are developed to account for DMP satisfaction and the combination of DMP satisfaction and mesh adaptivity. Numerical examples are given to demonstrate the features of the linear finite element method for anisotropic meshes generated with the metric tensors.Comment: 34 page

Анализ дифференциации федеральных округов Российской Федерации по основным показателям, характеризующим жилищную сферу

В статье приведен анализ дифференциации территорий Российской Федерации по основным показателям, характеризующим состояние и развитие жилищной сферы

A Theoretical Model of a Molecular-Motor-Powered Pump

The motion of a cylindrical bead in a fluid contained within a two-dimensional channel is investigated using the boundary element method as a model of a biomolecular-motor-powered microfluidics pump. The novelty of the pump lies in the use of motor proteins (kinesin) to power the bead motion and the few moving parts comprising the pump. The performance and feasibility of this pump design is investigated using two model geometries: a straight channel, and a curved channel with two concentric circular walls. In the straight channel geometry, it is shown that increasing the bead radius relative to the channel width, increases the flow rate at the expense of increasing the force the kinesins must generate in order to move the bead. Pump efficiency is generally higher for larger bead radii, and larger beads can support higher imposed loads. In the circular channel geometry, it is shown that bead rotation modifies the force required to move the bead and that shifting the bead inward slightly reduces the required force. Bead rotation has a minimal effect on flow rate. Recirculation regions, which can develop between the bead and the channel walls, influence the stresses and force on the bead. These results suggest this pump design is feasible, and the kinesin molecules provide sufficient force to deliver pico- to atto- l/s flows.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/44478/1/10544_2005_Article_6168.pd

Numerical study of two-dimensional fluid mechanics of particle motion in channels using boundary-fitted coordinates

In the present work a numerical procedure has been developed -for solution o-f the two-dimensional problem o-f slow motion of rigid particles in an incompressible viscous fluid bounded by solid walls o-f arbitrary shape. Several fundamental problems of slow motion of a circular particle between plane parallel walls are solved: motion in a quiescent fluid; motion in Poiseuille flow; motion in Couette flow; sedimentation in a vertical channel. The solutions have been obtained for a wide range of the particle radii and positions across the channel. Previously, only solutions to axisymmetric problems of small particles moving in a quiescent fluid, or small particles fixed in Poiseuille flow have been presented. The flow around particles and the trajectories of free particles in a bifurcating channel are calculated in several cases. Also theoretical predictions are given for separation of particles at channel bifurcations - a necessary element in the modeling of particle motion in networks of channels or pores. The solution of the fluid mechanical problem is accomplished by first transforming the flow region into a region with rectilinear boundaries using numerically generated boundary-fitted coordinates. This procedure avoids the need for interpolation at boundaries and also enables coordinate lines to be concentrated where high accuracy is required. Subsequently, the transformed hydrodynamic equations in vorticity - stream function form are solved in new coordinates on a square mesh using iterative procedure. The developed procedure can be extended to describe motion of several interacting particles of arbitrary shape and of deformable particles in channels.Mechanical Engineering, Department o