Results 131 to 140 of about 79,732 (357)

Measurement of mode patterns in a high-power microwave cavity

, 2003
A wet thermal paper method for measuring of mode patterns and heat distributions in a high-power microwave multimode cavity is developed. The exposure time of the paper is evaluated.
Kharkovsky, Sergey N., Hasar, Ugur C.
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

A High-Temperature and Wide-Permittivity Range Measurement System Based on Ridge Waveguide

Sensors
Potential applications of microwave energy, a developed form of clean energy, are diverse and extensive. To expand the applications of microwave heating in the metallurgical field, it is essential to obtain the permittivity of ores throughout the heating
Rui Xiong, Yuanhang Hu, Anqi Xia, Kama Huang, Liping Yan, Qian Chen   +5 more
doaj   +1 more source

Ultrafast (1‐5 sec) Lamination of Perovskite Solar Cells With Self‐Encapsulation Using Rapid Joule Heating

Advanced Materials Technologies, EarlyView.
Halide perovskite solar cells are fabricated with self‐encapsulation by lamination between two glass substrates using rapid Joule heating, yielding a 99% reduction in lamination time compared to previous studies. An 18% efficient cell is laminated in 5 s, demonstrating the potential for scalable manufacturing. ABSTRACT Perovskite solar cells (PSCs) are
Oluka Okia, Md Aslam Uddin, Tianhan Gao, Zhihang Zhang, Vaishnav Madhava Das, Clare L. Lanaghan, Alexandra C. Hurd, Wei Lu, David P. Fenning, Neil P. Dasgupta   +9 more
wiley   +1 more source

Asymmetric calibration method on a back‐to‐back double‐loop differential magnetic field probe

IET Science, Measurement & Technology
The asymmetric calibration method is a very interesting technology for differential output probes. It has been proven that the asymmetric calibration method (ACM) can broaden the application scenarios of the electromagnetic field dual probe. However, ACM
Xiao He, Lijuan Huang, Dezhi Zeng, Bo Hou, Yuan Chi, En Li   +5 more
doaj   +1 more source

EM-based optimization of microwave circuits using artificial neural networks: the state of the art

, 2004
This paper reviews the current state-of-the-art in electromagnetic (EM)-based design and optimization of microwave circuits using artificial neural networks (ANNs). Measurement-based design of microwave circuits using ANNs is also reviewed.
Rayas-Sánchez, José E.
core  

The random component of mixer-based nonlinear vector network analyzer measurement uncertainty

, 2007
The uncertainty, due to random noise, of the measurements made with a mixer-based nonlinear vector network analyzer are analyzed. An approximate covariance matrix corresponding to the measurements is derived that can be used for fitting models and ...
Scott, Jonathan B., Gunyan, Daniel, Parker, Anthony Edward, Blockley, Peter Stuart   +3 more
core   +1 more source

High‐Power Rapid Laser‐Induced Synthesis of Multi‐functional Cobalt Metal‐Organic Framework With an Unprecedented Synthesis Efficiency

Advanced Materials Technologies, EarlyView.
Laser‐assisted synthesis enables rapid (within 1 h) and high‐yield (≥90%) production of Co‐MOFs with mesoporous structures, tunable magnetic and optical properties, and efficient adsorption of N2, CH4, and CO2 for low‐energy gas separation. DFT calculations elucidate the electronic structure and adsorption behavior.
Saliha Mutlu, Bülend Ortaç, Ali Karatutlu, Taylan Gorkan, Engin Durgun, Dilek Soyler, Saniye Soylemez, Jelena Lillepäg, Volkan Filiz, Nergis Arsu, Sevil Savaskan Yilmaz   +10 more
wiley   +1 more source

Design and Analysis of a 2.45 GHz Microwave‐Assisted Marble Drilling System With Near‐Field Focused Radiation for Enhanced Material Processing

IET Microwaves, Antennas & Propagation
This study investigates the application of microwave‐assisted drilling systems as an alternative to conventional mechanical drilling for marble processing. By utilising microwave energy at a frequency of 2.45 GHz, this research demonstrates how microwave
Eser Can, Adnan Kaya, Ismail Akdag, Caner Murat, Irfan Kaya   +4 more
doaj   +1 more source

Distortion mechanisms in varactor diode-tuned microwave filters

, 2006
This paper examines the broadband distortion behavior in flexible filters employing varactor-diode tuning elements. Series- and parallel-resonant varactor-loaded transmission-lines, both commonly used in bandpass and bandstop microwave filters, are ...
Carey-Smith, BE, Warr, PA
core   +1 more source