نتایج جستجو برای: wpt

تعداد نتایج: 746  

Journal: :Developmental Psychobiology 2023

The Weather Prediction Task (WPT) can be solved by adults using several strategies dependent on different memory systems. One developmental study reported that 8–12-year-old children solve WPT-like tasks but, because of inadequate analyses, the cognitive processes involved in solving task have not been established. present aimed to determine at what age first WPT and identify used ages. We test...

Journal: :IEEE Access 2021

In this paper, we present a 5.8 GHz radio-frequency (RF) wireless power transfer (WPT) system that consists of 64 transmit antennas and 16 receive antennas. Unlike the inductive or resonant coupling-based near-field WPT, RF WPT has great advantage in powering low-power internet things (IoT) devices with its capability long-range transfer. We also propose beam scanning algorithm can effectively ...

Journal: :Indian Scientific Journal Of Research In Engineering And Management 2022

In reaction to the depletion of natural resources, electric vehicles offer a viable alternative. Practical and dependable methods charge EV batteries are crucial in order boost usage EVs daily life, wireless power transfer (WPT) is being investigated as solution batteries. this project, charger prototype system built implemented. The necessity for cable plug charger, galvanic separation onboard...

2017
Arash Ghaani Farashahi

This article introduces the abstract notion of finite wave packet groups over finite fields as the finite group of dilations, translations, and modulations. Then it presents a unified theoretical linear algebra approach to the theory of wave packet transforms (WPT) over finite fields. It is shown that each vector defined over a finite field can be represented as a finite coherent sum of wave pa...

Journal: :Computers & Fluids 2022

A new numerical approach for simulating nonlinear wavepackets in hypersonic boundary-layers is presented. The adaptive mesh refinement wavepacket tracking (AMR-WPT) method has been developed as an efficient alternative to conventional direct simulations (DNS). AMR-WPT employs the disturbances equations (NLDE), overset dual with higher-order interpolation, and (AMR) track boundary-layer flows. A...

Journal: :IEICE Transactions on Communications 2023

In recent years, microwave wireless power transfer (WPT) has attracted considerable attention due to the increasing demand for various sensors and Internet of Things (IoT) applications. Microwave WPT requires technology that can detect avoid human bodies in transmission path. Using a phantom is essential developing such terms standardization body protection from electromagnetic radiation. this ...

Journal: :Energies 2022

Real-time monitoring devices are popularly utilized in modern power grids. To ensure long-term operations of the systems under complex outdoor conditions, a reliable and stable supply is essential. In this paper, general analysis domino wireless transfer (WPT) with load-independent outputs proposed to realize constant for equipment. addition, methodology analyzing self-oscillating points WPT de...

Journal: :IEEE Access 2021

In this paper, we study a waveform design based on time-reversal (TR) for multi-user wireless power transfer (WPT) systems in multipath channels. The existing waveforms WPT using the non-linear energy harvesting (EH) model have been designed frequency domain, whereas directly time domain by modifying TR to be suitable WPT. EH model, peak signal with largest magnitude among received signals is r...

Journal: :Energies 2021

Wireless power transfer (WPT) systems have attracted considerable attention in relation to providing a reliable and convenient supply. Among the challenges this area are maintaining performance of WPT system with presence human body minimizing induced physical quantities body. This study proposes magnetic resonant coupling (MRC-WPT) that utilizes resonator grounded loop mitigate its interaction...

2017
Xin Liu Tianfeng Wang Xijun Yang Nan Jin Houjun Tang

Nowadays, work on Wireless Power Transfer (WPT) systems with dual active bridges is attracting great attention due to their low conduction losses, power regulation, load transformation and reactance compensation. However, in these studies limitations such as overall analysis, design and realization techniques of the system were not considered properly. To address the aforementioned issues, this...

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