نتایج جستجو برای: phase and double
تعداد نتایج: 16972646 فیلتر نتایج به سال:
The effect of addition of NaHF2 on the cement setting and the set mass has been studied as an initial step to determine how fluoride influences the characteristics of a calcium phosphate cement, consisting of tetracalcium phosphate [TTCP:Ca4 (PO4)2O] and dicalcium phosphate dihydrate [DCPD:CaHPO4.2H2O].NaHF2 [0-10% wt% of powder phase] has been dissolved in double distilled water and used as th...
Phase-only information derived using a double random-phase encryption (DRPE) algorithm is not visually recognizable but can be authenticated nonlinear cross-correlation method. This considered to enhance DRPE security (which vulnerable chosen-plaintext attack). Here, we show that phase-only images the method remains such an attack; at-risk include full- and sparse-phase phase with noise. We dev...
an oriented perfect path double cover (oppdc) of a graph $g$ is a collection of directed paths in the symmetric orientation $g_s$ of $g$ such that each arc of $g_s$ lies in exactly one of the paths and each vertex of $g$ appears just once as a beginning and just once as an end of a path. maxov{'a} and ne{v{s}}et{v{r}}il (discrete math. 276 (2004) 287-294) conjectured that ...
We propose an optical system for synthesizing double-phase complex computer-generated holograms using a phase-only spatial light modulator and a phase grating filter. Two separated areas of the phase-only spatial light modulator are optically superposed by 4-f configuration with an optimally designed grating filter to synthesize arbitrary complex optical field distributions. The tolerances rela...
abstract: in this study, al 2 o 3 /eg and tio 2 /eg nanofluids as coolants have been used in the double-tube heat exchanger. the hot solvent inlet heat exchanger must be cooled down with a specified amount. we can use nanofluids as coolants in the heat exchanger for optimization of the heat transfer area. therefore, the efficacy of nanofluids as coolants is verified. furthermore, flow rate of c...
objective(s): first principles calculations were performed to study four multiple sclerosis drugs namely, ampyra, fingolimod, mitoxantrone and eliprodil in gas and liquid phases using density functional theory (dft). computational chemistry simulations were carried out to compare calculated quantum chemical parameters for ampyra, fingolimod, mitoxantrone and eliprodil. materials and methods: al...
In recent years the use of nanomaterials in bone tissue engineering scaffold has been considered due to its imitating the structure of natural bone tissue which contains a nanocomposite structure mixed with a three-dimensional matrix. In the meantime, Polycaprol actone has been used as a bio-polymer in bone tissue engineering applications as a scaffold. The aim of this study is to develop porou...
Nowadays, renewable energy is increasingly used in smart grids and microgrids to reduce the use of fossil fuels and improve network efficiency. Like all power system devices, microgrids are subject to transient and steady-state faults, such as short circuits. These faults impair reliability and consumer dissatisfaction. To accurately, automatically, and economically determine the location of a ...
On the mass neutrino phase calculations along both the particle geodesic line and the photon null line, there exists a double counting error—factor of 2 when comparing the geodesic phase with the null phase. For the mass neutrino propagation in the flat spacetime, we study the neutrino interference phase calculation in the Minkowski diagram and find that the double counting effect originates fr...
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