Results 121 to 130 of about 287,449 (377)
Remote Sensing, 2017 Frozen soil and permafrost affect ecosystem diversity and productivity as well as global energy and water cycles. Although some space-based Radar techniques or ground-based sensors can monitor frozen soil and permafrost variations, there are some ...
Xuerui Wu, Shuanggen Jin, Liang Chang
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Permittivity measurement of minerals
Journal of Physics: Conference Series, 2013 An electromagnetic logging tool moves along a borehole to measure continuously the complex dielectric permittivity of the rock formation. Dielectric properties of formation fluids and minerals are required to interpret the log. Methods to measure mineral permittivities are reviewed and experimental results are described for various particulate minerals.
V J Anderson, A Clarke, G H Meeten
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The Fundamental Mechanism Behind Colossal Permittivity in Oxides
Advances in Materials, 2019 Colossal permittivity materials exhibit extreme polarization in an applied electric field, providing applications in electronics and energy transmission. Understanding the atomic‐scale mechanism behind colossal permittivity remains a challenging task and
N. T. Taylor +4 more
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Electroactive Liquid Crystal Elastomers as Soft Actuators
Advanced Functional Materials, EarlyView.Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley +1 more source
Dielectric behaviors of carbon nanotube/silicone elastomer composites
Science and Engineering of Composite Materials, 2015 Carbon nanotubes (CNTs) with different aspect ratios were modified by a silane coupling agent. The modified CNTs were embedded into a silicone elastomer (SE) matrix to obtain the composites.
Li Hongyan +5 more
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Assessment of Long Thermal Ageing on the Oil-Paper Insulation
Advances in Electrical and Electronic Engineering, 2016 Electric power equipment has complex construction. Therefore, it is very important to have enough information about the state of equipment. High voltage transformers play a very important role in the electric power system. One of the most important parts
Iraida Kolcunova +2 more
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An explicit P1 finite element scheme for Maxwell's equations with constant permittivity in a boundary neighborhood [PDF]
, 2018 Larisa Beilina, Vitoriano Ruas
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Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces
Advanced Functional Materials, EarlyView.A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai +6 more
wiley +1 more source
Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, EarlyView.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 more
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Low frequency electric properties utilization in agriculture and food treatment
Research in Agricultural Engineering, 2003 Determination of electrical properties is utilized in a wide range of disciplines and industries. A brief compendium of agricultural materials and food electrical properties exploitation is presented in this paper.
Z. Hlaváčová
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