نتایج جستجو برای: equivalent frame
تعداد نتایج: 237018 فیلتر نتایج به سال:
This study proposes a generic mathematical modelling and decoupling fault-tolerant vector control for dual three-phase permanent magnet synchronous machine (PMSM) with one phase open based on the conventional voltage source inverters, accounting mutual coupling between two sets of windings second harmonic inductance. When PMSM has open, flux-linkages are asymmetric there components in reference...
an experimental study is conducted on three ½ scales, single-story, single-bay, frame specimens. the first specimen was a reinforced concrete frame with solid-brick infill. the second specimen was a reinforced concrete frame with hollow clay perforated-brick infill. the last specimen was a reinforced concrete frame without any infill. these three specimens were tested by pseudostatic method. di...
The equation of motion the density matrix an ensemble identical spin-1/2 nuclei subject to a rotating-frame radiofrequency field and Zeeman frequency offset is derived from Schrodinger shown be equivalent magnetization differential equations originally proposed by Bloch (excluding relaxation). quantum classical are then integrated.
The informational leakage account of attribute framing effects proposes that a communicator's choice frame provides value, such different frames are not informationally equivalent. Across five studies communicating food risks, we investigated the adaptability communication recipients' (our participants) use information by manipulating degree to which communicator ostensibly had over how was fra...
We review the notion of perfect recall in the literature on interpreted systems, game theory, and epistemic logic. In the context of Epistemic Temporal Logic (ETL), we give a (to our knowledge) novel frame condition for perfect recall, which is local and can straightforwardly be translated to a defining formula in a language that only has next-step temporal operators. This frame condition also ...
We show that the conjectured generalization of the BourgainTzafriri restricted-invertibility theorem is equivalent to the conjecture of Feichtinger, stating that every bounded frame can be written as a finite union of Riesz basic sequences. We prove that any bounded frame can at least be written as a finite union of linear independent sequences. We further show that the two conjectures are impl...
It has been previously demonstrated that an induction machine drive with contactorless pole changing can be achieved by reversing current directions of certain stator coil groups. This paper compares the power and torque capability of this drive with conventional four-pole and two-pole induction machine drives. Based on the technique of vector space decomposition, the machine coupled-circuit mo...
In order to characterize the bivariate signals, minimum-energy bivariate wavelet frames with arbitrary dilation matrix are studied, which are based on superiority of theminimum-energy frame and the significant properties of bivariate wavelet. Firstly, the concept ofminimum-energy bivariate wavelet frame is defined, and its equivalent characterizations and a necessary condition are presented. Se...
We have developed a passive 350 GHz (850 μm) video-camera to demonstrate lumped element kinetic inductance detectors (LEKIDs)--designed originally for far-infrared astronomy--as an option for general purpose terrestrial terahertz imaging applications. The camera currently operates at a quasi-video frame rate of 2 Hz with a noise equivalent temperature difference per frame of ∼0.1 K, which is cl...
This paper presents a low-cost frame grabber, which was specifically designed as part of a real-time motion detection system for highresolution images. The frame grabber is FPGAbased to minimise size of the PCB and improve reliability of the system. It also acts as a backend add-on card for an IBM-PC compatible. The experimental tests carried' out on different machines show that the board imple...
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