نتایج جستجو برای: spray cone angle
تعداد نتایج: 190044 فیلتر نتایج به سال:
Abstract The problem of penetration an absolutely rigid round cone shaped indenter into a weighted rock (an axisymmetric plasticity problem) is being solved. Limit load, depending on the angle internal friction rock, adhesion, angular opening at top cone, weight, determined. dependence loading these parameters given.
A new endmember extraction method has been developed that is based on a convex cone model for representing vector data. The endmembers are selected directly from the data set. The algorithm for finding the endmembers is sequential: the convex cone model starts with a single endmember and increases incrementally in dimension. Abundance maps are simultaneously generated and updated at each step. ...
We performed an angle-resolved photoemission spectroscopy study of BaFe2As2, which is the parent compound of the so-called 122 phase of the iron-pnictide high-temperature superconductors. We reveal the existence of a Dirac cone in the electronic structure of this material below the spin-density-wave temperature, which is responsible for small spots of high photoemission intensity at the Fermi l...
Background: The relationship between airway and facial morphology is one of the components of facial skeleton that has extensively been debated in the literature. Studying this relationship to find conclusive results has clinical importance. Hence, the current study was carried out with the objective to determine association between saddle angle and the cross-section area of upper airway as ass...
Luminescent waveguides (LWs) occur in a wide range of applications, from solar concentrators to doped fiber amplifiers. Here we report a comprehensive analysis of escape-cone losses in LWs, which are losses associated with internal rays making an angle less than the critical angle with a waveguide surface. For applications such as luminescent solar concentrators, escape-cone losses often domina...
Pure plasmonic mode and hybrid plasmonic mode have been demonstrated. The cone-metal shelled structure is proposed. The two modes have been examined, pure plasmonic mode and hybrid plasmonic mode. At room temperature, the quality factor of the two modes has been compared and we found that the quality factor of hybrid plasmonic mode is 775 when the side angle of the cone structure ranged (60°-70...
The most popular Feldkamp algorithm for cone-beam image reconstruction assumes a scanning circle, and performs well only with a small cone angle. In this report, we propose a Feldkamp-type algorithm to increase the cone angle by several folds at a radiation dose comparable to that required by the classic Feldkamp algorithm. In our scheme, two half-scans of different radii are used. Then, approx...
Mach cones were studied experimentally in a two-dimensional Yukawa solid consisting of charged micrometer particles suspended as a layer in a plasma. These cones were V-shaped shocks produced spontaneously by a supersonic particle moving below the main two-dimensional particle layer. The cones had a double structure. The first cone was compressional and particles moved forward, and it was follo...
Tetrahedron beam computed tomography (TBCT) performs volumetric imaging using a stack of fan beams generated by a multiple pixel X-ray source. While the TBCT system was designed to overcome the scatter and detector issues faced by cone beam computed tomography (CBCT), it still suffers the same large cone angle artifacts as CBCT due to the use of approximate reconstruction algorithms. It has bee...
Electrohydrodynamic Atomization (EHDA) is an effective method to produce micro-droplets/particles in a controllable manner. In this paper, both experimental and numerical approaches are adopted to investigate the mechanism of various EHDA spray modes under different operating conditions. Especially, Computational Fluid Dynamics based numerical simulation is applied to investigate the Taylor con...
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