نتایج جستجو برای: wpt
تعداد نتایج: 746 فیلتر نتایج به سال:
Wireless power transfer is the technology that enables a power source to transmit electromagnetic energy to an electrical load across an air gap without interconnecting cords.However, its widespread application is hampered due to the relatively low efficiency of current Wireless power transfer (WPT) systems this study presents a concept to maximize the efficiency as well as to increase the amou...
The bearings are the most important mechanical elements of rotating machinery. They are employed to support and rotate the shafts in rotating machinery. On the other hand, any fault in bearing can lead to losses on the level of production and equipments as well as creation an unsafe working environment for human. For these reasons, Condition monitoring and fault diagnosis of these bearings has ...
Wireless power transfer (WPT) using a metallic tube with axial slits was attempted to demonstrate WPT using magnetic resonance coupling to the diagnostics infrastructure. The transmission efficiency was measured at various distances using the transmission and receiver resonator in the tube. Furthermore, the transmission and receiver resonator were set respectively outside and inside of the tube...
Text classification tasks suffer from curse of dimensionality due to large feature space. Short text data further exacerbates the problem due to their sparse and noisy nature. Feature selection thus becomes an important step in improving the classification performance. In this paper, we propose a novel feature selection method using Wavelet Packet Transform. Wavelet Packet Transform (WPT) has b...
A novel multiresolution block motion estimation algorithm for video coding is proposed in this paper. The algorithm estimates motion vectors in a coarse-tone scheme, using the wreath product transform (WPT). All of its sub-band coeecients are used to predict the motion vectors, generating an estimate close to that obtained from the standard exhaustive search method. The multiplication free char...
Pre-harvest sprouting (PHS) is a major abiotic factor affecting grain weight and quality, and is caused by an early break in seed dormancy. Association mapping (AM) is used to detect correlations between phenotypes and genotypes based on linkage disequilibrium (LD) in wheat breeding programs. We evaluated seed dormancy in 80 Chinese wheat founder parents in five environments and performed a gen...
In this letter, a wireless power transfer (WPT) assisted full-duplex non-orthogonal multiple access (WPT-NOMA) transmission scheme for massive machine type communications (mMTC) scenario in the 5G and beyond cellular networks has been investigated. The proposed WPT-NOMA allows uplink downlink users to share energy radio resources simultaneously, which is crucial mMTC support energy-constrained ...
The book gives a comprehensive view of wireless power transfer (WPT) technologies, with special emphasis on the multiple-pickup WPT. A number applications is also described, including systems employed in portable consumer electronics, in‐flight charging for unmanned aerial vehicles, underwater charging, and high‐power electrical vehicle (EV) that has been already mentioned above. organized four...
The quadratic-phase Fourier transform (QPFT) has gained much popularity in recent years because of its applications image and signal processing. However, the QPFT is inadequate for localizing spectrum, which required some applications. In this paper, wave packet (QP-WPT) proposed to address problem, based on (WPT) QPFT. Firstly, we propose definition QP-WPT give relation with windowed (WFT). Se...
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