We investigate the entanglement dynamics of two distinguishable two-level systems (TLSs) characterized by energy difference ? located inside a rectangular hollow metallic waveguide transverse dimensions and b . The effects inter-TLS distance on time evolution concurrence TLSs are examined in single excitation subspace when separation TLS is far away from cutoff frequencies mode.

Presented is a total-Lagrangian displacement-based non-linear finite-element model of thin-film membranes for static and dynamic large-displacement analyses. The membrane theory fully accounts for geometric non-linearities. Fully non-linear static analysis followed by linear modal analysis is performed for an inflated circular cylindrical Kapton membrane tube under different pressures, and for ...

The material reduction factor of rectangular hollow section (RHS) joints in a new version Eurocode 3 part 1–8 is validate for steel with the nominal yield strength up to 700 MPa. In this paper, finite element simulations gap K-joints are conducted investigate effects properties, size joint, brace chord width ratio and welds type on secondary bending stresses resistance. governing failure mode c...

A vacuum system (20) includes an enclosure (22) having a vacuum-tight wall (26) and an internally threaded aperture (66) through the wall (26). A tip-off fitting (24) has a base (50) with a bore (52) therethrough. a hollow tube (62) fixed to the base (50) with a vacuum-tight seal. such that an interior (64) of the tube (62) is in communication with the bore (52) in the base (50). and an externa...

INTRODUCTION Difficult intubation remains a key problem and the value of the gum elastic bougie as a first approach is well recognised. MATERIALS AND METHODS A fine fibre-optic endoscope (Rapiscope, Cook Critical Care) was used in 50 patients to verify placement of a custom-designed hollow plastic bougie prior to "rail-roading" a tracheal tube. Following induction and muscle relaxation, direc...

A practical study was conducted to improve the performance of conventional pyramidal solar stills (CPSS) using two types fins with differing geometries, as well nanocomposites TiO2 and graphene. The first fin hollow, cylindrical, perforated (HCPF), whereas second an inclined rectangular (IPRF). were integrated base a still evaluate their in comparison CPSS. obtained experimental results demonst...

Current design practice of concrete-filled steel tube (CFST) columns uses different formulas for different section profiles to predict the axial load bearing capacity. It has always been a challenge and practically important issue for researchers and design engineers who want to find a unified formula that can be used in the design of the columns with various sections, including solid, hollow, ...

A vacuum system (20) includes an enclosure (22) having a vacuum-tight wall (26) and an internally threaded aperture (66) through the wall (26). A tip-off fitting (24) has a base (50) with a bore (52) therethrough. a hollow tube (62) fixed to the base (50) with a vacuum-tight seal. such that an interior (64) of the tube (62) is in communication with the bore (52) in the base (50). and an externa...