نتایج جستجو برای: asymmetric rectangular waveform
تعداد نتایج: 103222 فیلتر نتایج به سال:
This paper was aimed at highlighting the impact of loading waveforms on cyclic liquefaction resistance sand. The test specimens were reclaimed by dry tamping method with Hostun 31 sand, and density sand matrix controlled to be 0.70. Three sets undrained triaxial tests performed altering as follows: triangular, sine rectangular waves. waveform experimentally observed axial stress applied. Under ...
We consider the asymmetric A-distance though it is not a metric due to the asymmetry in a rigorous sense. However, it reflects on an actual situation of urban areas that time from the demand point to the facility depends on the passing direction and in some places slopes and so it is asymmetric. Further, most residents in urban areas hope that even the city office should not be so near and so f...
The apparent advantages of Multilevel Inverter (MLI) topologies in handling medium and high power with less loss switching lower harmonic distortion an output voltage waveform makes it better than the conventional inverter. However, MLI utilize a large number DC supplies semiconductor devices. They also have higher value total standing (TSV). Moreover, capacitor balancing problems, self-voltage...
In this paper, we theoretically and experimentally analyze the influence of round-trip phase distributed feedback (DFB) lasers on harmonic-phase photocurrent, caused by external injection current. The results indicate that photocurrent introduced (HPIRP) reduces with increase modulation depth at a fixed frequency. Then, based HPIRP DFB laser, simple photonic generation method optical microwave ...
It is well known that hyperbolic frequency modulated waveform is Doppler-invariant. However it suffers severe distortion when the velocity of the target is not constant. In this paper we demonstrate that the acceleration of the target results in a frequency shift which is the source of the signal distortion under the assumption that the acceleration is constant and along the direction of the ve...
We investigated the deformation of the viscoelastic polymethyl methacrylene (PMMA) resist wherein a rigid SiO2 stamp with a rectangular line pattern is imprinted for thermal nano-imprint lithography (NIL). We calculated the stress distribution in the polymer resist during the molding process by finite element method (FEM). Our simulation results revealed asymmetric von Mises stress distribution...
We consider Taylor-Aris dispersion in columns of nearly rectangular cross section of large aspect ratio. We generalize the results of [1] and [2] who showed that the effective diffusion rate for perfectly rectangular cross sections is remarkably different than the diffusion rate between two parallel plates – as the aspect ratio goes to infinity, the effective diffusion rate does not approach th...
In the past few years, successive improvements of the asymptotic complexity of square matrix multiplication have been obtained by developing novel methods to analyze the powers of the Coppersmith-Winograd tensor, a basic construction introduced thirty years ago. In this paper we show how to generalize this approach to make progress on the complexity of rectangular matrix multiplication as well,...
We have investigated the gate-dependent magnetoresistance of strongly asymmetric double-well structures. The structures were prepared by inserting a thin Al0.3Ga0.7As barrier into the GaAs buffer layer of standard modulation-doped GaAs/Al0.3Ga0.7As heterojunctions. The resulting double-well system consists of a nearly rectangular well and of a triangular well coupled by tunneling through the th...
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