Results 91 to 100 of about 26,972 (241)

Editorial: Membrane Structure and Dynamics Studied With Neutron Scattering

Frontiers in Chemistry, 2021
O. Holderer, A. Koutsioubas, C. J. Garvey, C. J. Garvey, T. Nylander, T. Nylander   +5 more
doaj   +1 more source

Experimental Assessment of Microwave Penetration Depth in Layered Soil by Wideband (0.3–6 GHz) Transmissometry and Reflectometry

Remote Sensing
The depth to which a Global Navigation Satellite System (GNSS) signal senses soil moisture is set by the electromagnetic power penetration depth (δp), the depth at which the power transmitted into the soil falls to 1/e, seldom measured directly and ...
Amadeu Gonga, Adriano Camps
doaj   +1 more source

Estimating Wave Direction Using Terrestrial GNSS Reflectometry

Remote Sensing, 2019
The signal-to-noise ratio (SNR) data are part of the global navigation satellite systems (GNSS) observables. In a marine environment, the oscillation of the SNR data can be used to derive reflector heights. Since the attenuation of the SNR oscillation is
Jörg Reinking, Ole Roggenbuck, Gilad Even-Tzur   +2 more
doaj   +1 more source

Experimental Demonstration of Plasmon‐Enabled Monolithic Bragg Reflectors for Infrared Light via Inverse Design

Laser &Photonics Reviews, EarlyView.
Inverse‐designed plasmon‐enabled distributed Bragg reflectors are realized in modulation‐doped monolithic InP, where free‐carrier‐induced complex refractive‐index contrast enables strong infrared reflection without heteromaterial interfaces. Nonuniform layer optimization reduces absorption and improves reflectivity over uniform designs, offering a ...
Mikołaj Badura, Mikołaj Janczak, Michał Rygała, Tristan Smołka, Adriana Łozińska, Wojciech Dawidowski, Paweł Piotr Michałowski, Marcin Kałuża, Beata Ściana, Damian Radziewicz, Marcin Motyka, Tomasz Czyszanowski   +11 more
wiley   +1 more source

A Differential Particle Swarm Optimization-based Support Vector Machine Classifier for Fault Diagnosis in Power Distribution Systems

Advances in Electrical and Computer Engineering, 2017
This paper proposes a new differential particle swarm optimization (DPSO) method for obtaining optimum support vector machine (SVM) parameters used for electrical fault diagnosis in radial distribution systems.
CHO, M. Y., HOANG, T. T.
doaj   +1 more source

Satellite Cross-Talk Impact Analysis in Airborne Interferometric Global Navigation Satellite System-Reflectometry with the Microwave Interferometric Reflectometer

Remote Sensing, 2019
This work analyzes the satellite cross-talk observed by the microwave interferometric reflectometer (MIR), a new global navigation satellite system (GNSS) reflectometer, during an airborne field campaign in Victoria and New South Wales, Australia. MIR is
Raul Onrubia, Daniel Pascual, Hyuk Park, Adriano Camps, Christoph Rüdiger, Jeffrey P. Walker, Alessandra Monerris   +6 more
doaj   +1 more source

Recovery from electrode position uncertainties in geophysical electrical resistance tomography – Application to moisture transport imaging

Near Surface Geophysics, EarlyView.
Abstract In studies of subsurface hydrology, monitoring and imaging techniques are used to estimate the moisture content, or to track moisture or injected tracer movement. One applied imaging technique is electrical resistance tomography (ERT), in which measurements collected using electrodes placed on the ground surface or in boreholes are used to ...
Mikko Räsänen, Ruanui Nicholson, Jari Kaipio, Aku Ursin   +3 more
wiley   +1 more source

GNSS reflectometry for earth remote sensing

, 2020
Reflectometry is one of many new applications made possible by freely available global navigation satellite system (GNSS) signals. Reflectometry measurement geometry has some features that are significantly different from conventional radar or radiometry.
Kristine M. Larson, Zavorotny, Valery U., Larson, Kristine M., Nievinski, Felipe, Martin, Francisco, Ruffini, Giulio, James Garrison, Francisco Martin, Antonio Mollfulleda, Mollfulleda, Antonio, Giulio Ruffini, Garrison, James, Felipe Nievinski, Christine Gommenginger, Valery U. Zavorotny, Egido, Alejandro, Alejandro Egido, Gommenginger, Christine   +17 more
core   +1 more source

A Microwave Reflectometry Technique for Profiling the Dielectric-Conductivity Properties of the Hagia Sophia Globe

Computation, 2018
A microwave free space reflectometry technique with swept frequency measurements for the profiling of wall structures and the detection of hidden (covered) layers has been applied to the Hagia Sophia byzantine monument.
Christos Vazouras, George B. Kasapoglu, Evangelia A. Karagianni, Nikolaos K. Uzunoglu   +3 more
doaj   +1 more source

Geophysical investigation at Sainte‐Marguerite‐sur‐Mer (Normandy, France): From a supposed landfill to a forgotten military network?

Near Surface Geophysics, EarlyView.
Abstract This study focuses on characterising a strong and unexpected anomaly observed during an electromagnetic induction (EMI) survey conducted on the chalk cliff plateau at Sainte‐Marguerite‐sur‐Mer, in the Normandy region, France. The site was selected for a long‐term study of chalk cliff coastal erosion that began in 2017 and has been studied for ...
Sarah Thuillier, Cécile Finco, Fayçal Rejiba, Cyrille Fauchard   +3 more
wiley   +1 more source