The Sn atom in the title compound, [Sn(C(4)H(9))(2)(C(7)H(14)NS(2))(2)], exists in a tetra-hedral C(2)S(2)Sn coordination geometry. The geometry is distorted towards skew-trapezoidal-bipyramidal owing to the proximity of the double-bond S atoms [Sn-S = 2.521 (2) and Sn⋯S = 2.933 (2) Å]. The Sn atom lies on a special position of mm2 site symmetry and the tin-bound n-butyl chain is disordered abo...

In [19] we specified robot grippers that can orient and grasp parts with an arrangement of trapezoidal jaw modules. Since jaw modules may be imprecisely machined, we define a parametric tolerance class such that part alignment is guaranteed for all jaw geometry in the class. This tolerance class is derived based on analysis of toppling, motion trajectory, and form-closure. Given maximal jaw geo...

computational fluid dynamics analysis was employed to investigate the radial flow field patterns of proton exchange membrane fuel cells (pemfc) with different channel geometries at high operating current densities. 3d, non-isothermal was used with single straight channel geometry. our study showed that new generation of fuel cells with circle stack with the same active area and inlet area gave ...

Since tubes have numerous industrial applications, different attempts are focused on the Severe Plastic Deformation (SPD) processes of tubes. As an illustration, Tube Channel Pressing (TCP) is an attractive process for this purpose since it can be used for processing of different sizes of tubes. However, more attempts are needed to improve the outcomes of TCP. For example, imposing of greater s...

Since tubes have numerous industrial applications, different attempts are focused on the severe plastic deformation processes of tubes. As an illustration, tube channel pressing (TCP) is an attractive process for this purpose since it can be used for processing of different sizes of tubes. However, more attempts are needed to improve the outcomes of TCP. For example, imposing of a greater strai...

The goal of this study is to optimize a 32-channel head coil array for accelerated 3T human brain proton MRI using either a Cartesian or a radial k-space trajectory. Coils had curved trapezoidal shapes and were arranged in a circular symmetry (CS) geometry. Coils were optimally overlapped to reduce mutual inductance. Low-noise pre-amplifiers were used to further decouple between coils. The SNR ...

The gravitational water vortex turbine is presented as an alternative for electric power generation both low head and flow conditions, additionally it easy cost to implement maintenance. However, the experimentally reported efficiencies motivate scientific community develop new geometries in order improve its performance. First, not clear how efficiency of obtained second, all studies report it...

The mononuclear title molecule, [Sn(C(7)H(6)F)(2)(C(3)H(3)N(2)S(3))(2)], has 2 symmetry. The Sn(IV) atom, located on a twofold rotation axis, is in a skew trapezoidal-bipyramidal geometry, with the basal plane defined by two S,N-chelating 3-methyl-sulfanyl-1,2,4-thia-diazole-5-thiol-ate ligands. The apical positions are occupied by the C atoms of two 4-fluoro-benzyl groups.

We report on the construction and first test beam results of a prototype of two-stage amplifying detector module with four trapezoidal elements arranged in a geometry as planned for the CMS forward tracker. The performance of the detector is studied for different operational parameters in a high energy pion beam at CERN. a) corresponding author; email: [email protected] b) now at Becker Automo...