Results 71 to 80 of about 44,647 (238)

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

A Ubiquitous GNSS-R Methodology to Estimate Surface Reflectivity Using Spinning Smartphone Onboard a Small UAS

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Global Navigation Satellite Systems (GNSS) Reflectometry (GNSS-R) has gained significant attention in retrieving geophysical parameters of the Earth's surface using ground, airborne, and spaceborne systems in the past decade.
Md Mehedi Farhad, Mehmet Kurum, Ali Cafer Gurbuz   +2 more
doaj   +1 more source

Charge dynamics and spin blockade in a hybrid double quantum dot in silicon [PDF]

, 2015
Electron spin qubits in silicon, whether in quantum dots or in donor atoms, have long been considered attractive qubits for the implementation of a quantum computer due to the semiconductor vacuum character of silicon and its compatibility with the ...
Barraud, S., Betz, A. C., Chatterjee, A., Gonzalez-Zalba, M. F., Kobayashi, T., Lo, C. C., Mansir, J., Morton, J. J. L., Rogge, S., Urdampilleta, M.   +9 more
core   +4 more sources

I-mode studies at ASDEX Upgrade: L-I and I-H transitions, pedestal and confinement properties [PDF]

, 2016
The I-mode is a plasma regime obtained when the usual L-H power threshold is high, e.g. with unfavourable ion B ∇ direction. It is characterised by the development of a temperature pedestal while the density remains roughly as in the L-mode ...
Barrera Orte, L., Bernert, M., Burckhart, A., Fischer, R., Fuchs, C., Graça, S. da, Happel, T., Kurzan, B., McCarthy, P., McDermott, R. M., Pütterich, T., Ryter, F., Suttrop, W., Viezzer, Eleonora, Willensdorfer, M., Wolfrum, E.   +15 more
core   +1 more source

Climate change effects on biomass and greenhouse gas emissions are ameliorated by nontoxic endophytes in southeastern USA transition zone tall fescue pastures

Grassland Research, EarlyView.
Tall fescue produces more biomass and less carbon dioxide from the soil when it contains its beneficial fungal endophyte. Increased temperatures projected with climate change reduce fescue biomass, while altered rainfall frequency does not. Altering rainfall frequency and increasing temperatures can reduce carbon dioxide emissions from soil.
Rebecca K. McGrail, Jonathan D. Moore, A. Elizabeth Carlisle, Jim A. Nelson, Rebecca L. McCulley   +4 more
wiley   +1 more source

Can GNSS-R Detect Abrupt Water Level Changes?

Remote Sensing, 2020
Global navigation satellite system reflectometry (GNSS-R) uses signals of opportunity in a bi-static configuration of L-band microwave radar to retrieve environmental variables such as water level.
Sajad Tabibi, Olivier Francis
doaj   +1 more source

Effects of deficit irrigation and biostimulants on melon productivity and quality in semi‐arid conditions

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Water scarcity and soil salinization are major constraints to irrigated agriculture in semi‐arid regions, affecting crop productivity and fruit quality. Combining deficit irrigation with biostimulant application has emerged as a promising strategy to improve water use efficiency and plant stress tolerance.
Jefferson dos Santos Gomes Calaça, Jean Carlos Nogueira, José Raliuson Inácio Silva, Denizard Oresca, Alan Cezar Bezerra, Raquele Mendes de Lira, George do Nascimento Araújo Júnior, Luiz Guilherme Medeiros Pessoa, Agda Raiany Mota dos Santos, Sidney Antônio da Silva, Guilherme Heverton Lima e Silva, Douglas Nogueira Lima, Eduardo Soares de Souza   +12 more
wiley   +1 more source

Electronic depth profiles with atomic layer resolution from resonant soft x-ray reflectivity

New Journal of Physics, 2015
The analysis of x-ray reflectivity data from artificial heterostructures usually relies on the homogeneity of optical properties of the constituent materials.
M Zwiebler, J E Hamann-Borrero, M Vafaee, P Komissinskiy, S Macke, R Sutarto, F He, B Büchner, G A Sawatzky, L Alff, J Geck   +10 more
doaj   +1 more source

Investigation of Side Wall Roughness Effect on Optical Losses in a Multimode Si₃N₄ Waveguide Formed on a Quartz Substrate

Photonics, 2020
This article presents the results of the study of the influence of the most significant parameters of the side wall roughness of an ultra-thin silicon nitride lightguide layer of multimode integrated optical waveguides with widths of 3 and 8 microns. The
Anastasia Yakuhina, Alexey Kadochkin, Vyacheslav Svetukhin, Dmitry Gorelov, Sergey Generalov, Vladimir Amelichev   +5 more
doaj   +1 more source

Solution to Fault of Multi-Terminal DC Transmission Systems Based on High Temperature Superconducting DC Cables

Energies, 2021
In this paper, we developed the small-signal state-space (SS) model of hybrid multi-terminal high-voltage direct-current (HVDC) systems and fault localization method in a failure situation.
Chun-Kwon Lee, Gyu-Sub Lee, Seung-Jin Chang   +2 more
doaj   +1 more source