Results 111 to 120 of about 20,622 (309)

Apparent Resistivity Calculation Method of the Wide-area, Multi-component Transient Electromagnetic Field

, 2011
From the transient electromagnetic vector field theory, this paper analyzed the mathematics characteristic of the transient electromagnetic vector field nuclear function. By analyzing, we know that the function forms of vertical and horizontal components
Li, Xiu, Wenbo Guo, Qi, Zhipeng, Zhipeng Qi, Guo, Wenbo, Yin’ai Liu, Liu, Yin’ai, Xiu Li   +7 more
core   +1 more source

Calculation of borehole transient electromagnetic apparent resistivity and dip in anisotropic medium

河南理工大学学报. 自然科学版
In the fields of resource exploration and development， as well as geological disaster prevention and control， the electromagnetic method of borehole is an effective tool for monitoring subsurface fluid distribution， particularly in evaluating the ...
ZHAO Ning, ZHANG Zhaoaoji, JIANG Liming, XIAO Zhanshan, HU Haitao   +4 more
doaj   +1 more source

Additively Manufactured Porous Ceramics as Tunable Dielectrics for Passive Temperature Sensing

Advanced Materials Technologies, EarlyView.
Porous ceramic lattices, 3D‐printed from a multicomponent oxide ink, are integrated with LC resonators for passive wireless temperature sensing. By tuning porosity, the dielectric properties and RF response are engineered to produce distinct resonant frequency shifts with temperature. The results establish a structure‐driven approach to customizing the
Sogol Heidarishahrivar, Aminul Islam, Chang Woo Gal, Insup Kim, Yeong‐Jin Choi, Woo Soo Kim   +5 more
wiley   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

On the Choice Between Transmission Line Equations and Full-Wave Maxwell’s Equations for Transient Analysis of Buried Wires

, 2008
In this paper, we evaluate the validity of transmission line (TL) solutions in the study of interaction of lightning transients with buried wires. The considered transients have frequencies between a few kilohertz to a few megahertz with risetimes 0.1-10
Rachidi, Farhad,, Baba, Yoshihiro, Baba, Yoshihiro,, Theethayi, Nelson, Thottappillil, Rajeev, Theethayi, Nelson,, Thottappillil, Rajeev,   +6 more
core   +1 more source

Tunable Extraordinary Optical Transmission in the Long‐Wavelength Infrared Range Using Electrostatic MEMS Actuation

Advanced Materials Technologies, EarlyView.
A MEMS‐integrated metamaterial filter enables continuous, low‐voltage spectral tuning in the long‐wavelength infrared (LWIR). The device employs extraordinary optical transmission in a dual suspended metasurface stack, where electrostatic actuation precisely controls the intermembrane air gap.
Oleg Bannik, Fedor Kovalev, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Ilya Shadrivov, Mariusz Martyniuk   +6 more
wiley   +1 more source

Electromagnetic transient analysis of combined instrument transformer with embedded 3D-finite element

, 2010
. In the paper a thorough electromagnetic transient analysis of a combined instrument transformer will be given. A CAD procedure for transformer optimal design by using a genetic algorithm original program will be accomplished.

core  

Transient electromagnetic waves and inversion techniques [PDF]

, 1995
This paper reviews an efficient inversion technique for complex media utilizing transient electromagnetic scattering data. The approach to solve the scattering problems (direct and inverse) relies on a wave splitting technique and an invariant imbedding ...
Kristensson, Gerhard
core  

Study of the electromagnetic processes in converter with twenty four zoned regulations of the voltage

Adaptivni Sistemi Avtomatičnogo Upravlinnâ
The article focuses on electromagnetic processes in the electric circuits with semiconductor switches. The mathematical model of the converter with fourteenzone regulation of output voltage has been developed to analyse electromagnetic processes in ...
В. Михайленко, Ю. Чуняк, М. Прудніков   +2 more
doaj   +1 more source

Galinstan Liquid Metal/Polyurethane Composite as a Multifunctional Stretchable Electrode and Piezoresistive Strain Sensor With Minimal Drift

Advanced Materials Technologies, EarlyView.
Liquid metal additives are processed in elastomer host resulting in highly conductive and stretchable composites. The material functions as a piezoresistive sensor with minimal drift, low stiffness, and enhanced operating range. The film can replace wires to charge a mobile phone at ∼350% strain and monitors bodily motion in real‐time via a portable ...
Patryk Wojciak, Neeraj Kumar, Toby Hallam, Shayan Seyedin   +3 more
wiley   +1 more source