Results 91 to 100 of about 303,375 (325)

Atom-interferometry constraints on dark energy [PDF]

Science, 2015
Limiting unknows in the dark side Our knowledge of the inventory of stuff that makes up our universe amounts to a humbling 5%. The rest consists of either dark energy (~70%) or dark matter (~25%). Using atom interferometry, Hamilton et al.
P. Hamilton, Matt Jaffe, P. Haslinger, Quinn Simmons, H. Mȕller, J. Khoury   +5 more
semanticscholar   +1 more source

MEMS‐Based Magnetoelectric Antennas for Wireless Power Transmission in Brain‐Implantable Devices

Advanced Materials Technologies, EarlyView.
Magnetoelectric (ME) antennas allow the minimization of the invasiveness of brain implantable devices, via powering wirelessly systems able to actuate neural tissue. In order to achieve the necessary power efficiency transmission, the choice of the materials and the system assembly is vital.
Laura Mazón‐Maldonado, Jungang Zhang, María Cerezo‐Sánchez, Mahdieh Shojaei Baghini, Roghaieh Parvizi, Hadi Heidari   +5 more
wiley   +1 more source

SAR Data and Harvesting Residues: An Initial Assessment of Estimation Potential

Earth
The increasing demand for large-scale, high-frequency environmental monitoring has driven the adoption of satellite-based technologies for effective forest management, especially in the context of climate change.
Alberto Udali, Henrik J. Persson, Bruce Talbot, Stefano Grigolato   +3 more
doaj   +1 more source

Measurements of Ozone Vertical Profiles in the Upper Troposphere–Stratosphere over Western Siberia by DIAL, MLS, and IASI

Atmosphere, 2020
The purpose of this work is to measure the ozone vertical distribution (OVD) in the upper troposphere−stratosphere by differential absorption lidar (DIAL) at 299/341 nm and 308/353 nm and to compare and analyze the results against satellite data. А
Sergey Dolgii, Alexey A. Nevzorov, Alexey V. Nevzorov, Yurii Gridnev, Olga Kharchenko   +4 more
doaj   +1 more source

Simulation of anyonic fractional statistics of Kitaev's toric model in circuit QED

, 2011
Since the anyonic excitations in the Kitaev toric model are perfectly localized quasiparticles, it is possible to generate dynamically the ground state and the excitations of the model Hamiltonian to simulate the anyonic interferometry.
Xue, Zheng-Yuan
core   +1 more source

Outdoor Stability of 518 cm2 Active Area Screen‐Printed Mesoscopic Carbon‐Based Perovskite Solar Modules Over 12 Months

Advanced Materials Technologies, EarlyView.
Mesoscopic carbon‐based perovskite solar cells (C‐PSCs) offer a pathway to stable, scalable, low‐cost photovoltaics via commercially mature fabrication methods. While their potential lifespan has been demonstrated under standardized conditions, few studies examine the behavior of large‐area modules exposed to real‐world environments. Here, 12 months of
Sarah‐Jane Potts, Rebecca Bolton, Carys Worsley, Tom Griffiths, Luke Ardolino, Kathryn Lacey, Ershad Parvazian, Eifion Jewell, Trystan Watson   +8 more
wiley   +1 more source

Interference Measurements Across Vacuum and Atmospheric Environments for Characterization of Space-Borne Telescope

Photonics
A space-borne telescope is used for Earth observation at about 500 km above sea level in the thermosphere where the air density is very low and the temperature increases significantly during daytime. If the telescopes are aligned and characterized on the
Yi-Kai Huang, Cheng-Huan Chen
doaj   +1 more source

A New Single-Pass SAR Interferometry Technique with a Single-Antenna for Terrain Height Measurements

Remote Sensing, 2019
One of the prospective research topics in radar remote sensing technology is the methodology for designing an optimal radar system for high-precision two-dimensional and three-dimensional image acquisition of the Earth’s surface with minimal ...
Min-Ho Ka, Pavel E. Shimkin, Aleksandr I. Baskakov, Mikhail I. Babokin   +3 more
doaj   +1 more source

Applicability of a Recreational-Grade Interferometric Sonar for the Bathymetric Survey and Monitoring of the Drava River

ISPRS International Journal of Geo-Information, 2020
Sonar survey of shallow water bodies has challenged scientists for a long time. Although these water courses are small, still they have an increasing ecological, touristic and economical role.
Ákos Halmai, Alexandra Gradwohl–Valkay, Szabolcs Czigány, Johanna Ficsor, Zoltán Árpád Liptay, Kinga Kiss, Dénes Lóczy, Ervin Pirkhoffer   +7 more
doaj   +1 more source

Interferometry from Space: A Great Dream

, 2014
During some thirty years, 1980-2010, technical studies of optical interferometry from instruments in space were pursued as promising for higher spatial resolution and for higher astrometric accuracy.
Høg, Erik
core