Averaged diffusivities of spherical colloids in solutions of rod-like particles, i.e. fd-virus, were measured with EWDLS and TIRM. While the experimentally observed near wall dynamics of the spheres in the absence of fd are well described by standard hydrodynamic theories, there are significant deviations at finite fd concentrations. Both experimental methods yield data which are significantly ...

A quick and easy computation involving magnetic rods is presented. Rods are replaced by different kinds of distributions (magnetization, magnetic charges) calculated by collocation. These distributions can be punctual or surfacic (disc) in the rod according to the density of the mesh used. Then, three-dimensional geometries can be quickly and easily modeled instead of using uneasy finite-elemen...

We show that the well–known NUT solution can be correctly interpreted as describing the exterior field of two counter–rotating semi– infinite sources possessing negative masses and infinite angular mo-menta which are attached to the poles of a static finite rod of positive mass.

An optimal control problem for the heat equation is considered. The form of the functional is chosen to guarantee a uniform cooling of a rod. The problem is approximated by a finite dimensional optimal control problem. The optimal solution to the latter problem is studied analytically. It is shown that the original problem can be reduced to a simple three-dimensional optimization problem.

Idiopathic osteoporosis (IOP) in premenopausal women is a poorly understood entity in which otherwise healthy women have low-trauma fracture or very low bone mineral density (BMD). In this study, we applied individual trabeculae segmentation (ITS)-based morphological analysis to high-resolution peripheral quantitative computed tomography (HR-pQCT) images of the distal radius and distal tibia to...

abstract   background: pseudoarthrosis of the tibia poses one of the most challenging treatment problems in all of orthopedics. the goal of the study was to assess the clinical outcome of intramedullary rod fixation in its treatment.   methods: the results of the management for nine patients with pseudoarthrosis of the tibia with im rod fixation were reviewed retrospectively between 1986 - 2006...

The mechanics of lower dimensional elastic structures depends strongly on the geometry their stress-free state. Elastic deformations separate into in-plane stretching and energy out-of-plane bending deformations. For with a curved state, these two modes are coupled within linear elasticity. We investigate effect that curvature-induced coupling wave propagation in structures, focusing simplest e...

Objectives. To study the direct and inverse problem of vibrations a rectangular rod having longitudinal notch, to analyze regularities behavior natural frequencies forms when changing location size develop method for uniquely identifying parameters notch using rod. Methods. The with is modeled as two rods, where first one does not have while second does. For connection, conjugation conditions a...

In this paper, the fatigue design of AM components is addressed through Topology Optimization. Two defect-driven methodologies, which model response in finite life range and account for experimental scatter, are compared. The first approach based on defect distribution marginal P-S-N curves. second method models size-effect by accounting stress within loaded material. two approaches used to ass...

Electrostatic potential as well as the local volume charge density are computed for a macromolecule by solving the Poisson-Boltzmann equation (PBE) using the finite element method (FEM). As a verification, our numerical results for a one dimensional PBE, which corresponds to an infinite-length macromolecule, are compared with the existing analytical solution and good agreement is found. As a ma...