نتایج جستجو برای: equivalent frame
تعداد نتایج: 237018 فیلتر نتایج به سال:
in this paper we proved that every g-riesz basis for hilbert space $h$ with respect to $k$ by adding a condition is a riesz basis for hilbert $b(k)$-module $b(h,k)$. this is an extension of [a. askarizadeh,m. a. dehghan, {em g-frames as special frames}, turk. j. math., 35, (2011) 1-11]. also, we derived similar results for g-orthonormal and orthogonal bases. some relationships between dual fram...
Abstract The paper presents the comparison of results non-linear static analyses performed with different software based on equivalent frame (EF) modelling approach a simple two-story unreinforced masonry building rigid diaphragms. This study is part wider research activity carried out in framework Italian Network Seismic Laboratories (ReLUIS) projects, funded by Department Civil Protection. Di...
In the framework of spacetime with torsion and without curvature, the Dirac particle spin precession in the rotational system is studied. We write out the equivalent tetrad of rotating frame, in the polar coordinate system, through considering the relativistic factor, and the resultant equivalent metric is a flat Minkowski one. The obtained rotation-spin coupling formula can be applied to the h...
A rotating dusty plasma apparatus was constructed to provide the possibility of experimental emulation of extremely high magnetic fields by means of the Coriolis force, observable in a corotating measurement frame. We present collective excitation spectra for different rotation rates with a magnetic induction equivalent of up to 3200 T. We identify the onset of magnetoplasmon-equivalent mode di...
Abstract This paper presents the comparison of results modal and nonlinear analyses carried out on a 2-story masonry building with rigid diaphragms, inspired by Pizzoli’s town hall (AQ, Italy). The case study is one Benchmark Structures (labeled BS6) in “ URM modelling –Benchmark project” funded Italian Department Civil Protection (DPC) within framework ReLUIS projects. has been instrumented si...
In the building construction, framed structures are frequently used due to ease of construction and rapid progress of work. Masonry infill panels have been widely used as interior and exterior partition walls for aesthetic reasons and functional needs. When infill walls are omitted in a particular storey, a soft storey is formed compared to much stiffer other stories. The masonry infill has bee...
this research concentrates on the lithostratigraphy, biostratigraphy, microfacies and sedimentary environment of the asmari and gachsaran formations at southwest firuzabad. the thickness of the studied section in all 608.95 meters that 220.8 meters belong to the asmari formation and 387.95 meters belong to the gachsaran formation (champe and mol members). in the study area, the asmari formation...
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