We calculate the scattering states and cross sections for a Bose-Einstein condensed dilute gas trapped in a spherical square well of finite depth. The interactions are treated in the scattering length approximation. We solve the Gross-Pitaevskii equation and the Bogoliubov equations for bound and scattering states. The results show that there are transparency effects reminiscent of those conjec...

The aim of the VIRMOS VLT Deep Survey (VVDS) is to study of the evolution of galaxies, large scale structures and AGNs from a sample of more than 150,000 galaxies with measured redshifts in the range 0 ≤ z ≤ 5+. The VVDS will rely on the VIMOS and NIRMOS wide field multi-object spectrographs, which the VIRMOS consortium is delivering to ESO. Together, they offer unprecedented multiplex capabili...

We show that there are no gaps in the lengths of the indecomposable objects in an abelian k-linear category over a field k provided all simples are absolutely simple. To derive this natural result we prove that any distributive minimal representation-infinite k-category is isomorphic to the linearization of the associated ray category which is shown to have an interval-finite universal cover wi...

In this paper, the link quality in SHF and EHF ranges are studied. In order to achieve high data rate higher frequencies must be used – centimeter waves (SHF), millimeter waves (EHF) or optical range. However, there are significant problem when a radio link work in that diapason – rain attenuation and attenuation in earth’s atmosphere. Based on statistical rain rates data for Bulgaria, the link...

In this paper, the link quality in SHF and EHF ranges are studied. In order to achieve high data rate higher frequencies must be used – centimeter waves (SHF), millimeter waves (EHF) or optical range. However, there are significant problem when a radio link work in that diapason – rain attenuation and attenuation in earth’s atmosphere. Based on statistical rain rates data for Bulgaria, the link...

Waste tank Cleanup is a current application area for robotics in the United States. As a result of tank access restrictions, (e.g., limited number and size of manholes), designs for several current waste Cleanup manipulator systems have long links with small cross-sections and variable lengths. In addition, as a result of anticipated payload capacity, these manipulator designs are hydraulically...

Currently, most rehabilitation/nursing robots attach the human body to end of robot by ‘binding’ solution, which makes operation complicated and greatly limits their applications. Therefore, it is necessary study a universal gripper that can directly grasp limbs as end-effector robot. Inspired hand, this paper proposes bionic under-actuated imitates structure hand. The concept Equivalent Link L...

This paper considers an exact bi-objective approach for simultaneously minimizing the total cost of flow routing and network bottleneck when link qualities weights are relevant. is useful wireless multi-hop networks with long-term TCP (Transmission Control Protocol) flows. The introduced proposal can generate a minimal complete set Pareto-optimal solutions. Our evaluated through simulation in w...