Results 121 to 130 of about 1,522 (283)

Refraction correction for radio-echo sounding of large ice masses

, 1992
This paper presents a simple mathematical formula for correcting radio-echo-sounding data from an ice sheet or glacier for the effects of varying refractive index. The method requires some knowledge of the variation of refractive index with depth.
W. G. Rees, R.E. Donovan
core   +2 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Radio Echo Sounding of Antarctic Ice

Radio Echo Sounding of Antarctic Ice
P(論文)
openaire   +1 more source

What can radar-based measures of subglacial hydrology tell us about basal shear stress? A case study at Thwaites Glacier, West Antarctica

Journal of Glaciology
Ice sheet models use observations to infer basal shear stress, but the variety of methods and datasets available has resulted in a wide range of estimates.
Rohaiz Haris, Winnie Chu, Alexander Robel   +2 more
doaj   +1 more source

Crystal orientation fabric anisotropy causes directional hardening of the Northeast Greenland Ice Stream. [PDF]

Nat Commun, 2023
Gerber TA, Lilien DA, Rathmann NM, Franke S, Young TJ, Valero-Delgado F, Ershadi MR, Drews R, Zeising O, Humbert A, Stoll N, Weikusat I, Grinsted A, Hvidberg CS, Jansen D, Miller H, Helm V, Steinhage D, O'Neill C, Paden J, Gogineni SP, Dahl-Jensen D, Eisen O.   +22 more
europepmc   +1 more source

Radio Echo Sounding Studies of Svalbard Glaciers

, 2017
The objective of this study was to investigate the radio echo sounding properties of Svalbard glaciers and to use these data to obtain information about the glaciological environment. Particular emphasis was placed on obtaining an understanding of the dielectric properties of the ice and reflecting boundaries present.
openaire   +1 more source

Radioglaciological studies on Hurd Peninsula glaciers, Livingston Island, Antarctica

, 2009
We present the results of several radio-echo sounding surveys carried out on Johnsons and Hurd Glaciers, Livingston Island, Antarctica, between the 1999/2000 and 2004/05 austral summer campaigns, which included both radar profiling and common-midpoint ...
Ahlstrom, L.P., Lapazaran Izargain, Javier Jesús, Otero García, Jaime, Machío, F., Navarro Valero, Francisco José, Vasilenko, Evgeniy, Macheret, Yu   +6 more
core  

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source

Storstrømmen and L. Bistrup Bræ, North Greenland, Protected From Warm Atlantic Ocean Waters. [PDF]

Geophys Res Lett, 2022
Rignot E, Bjork A, Chauche N, Klaucke I.
europepmc   +1 more source

Performance of an Echo Canceller and Channel Estimator for On-Channel Repeaters in DVB-T/H Networks

, 2007
This paper investigates the design and performance of an FIR echo canceller for on-channel repeaters in DVB-T/H network within the framework of the PLUTO project. The possible approaches for echo cancellation are briefly reviewed and the main guidelines
Cosmas, John P., M. Bard, J.P. Cosmas, Gledhill, J, Bard, Maurice, K.M. Nasr, Cosmas, J, Nasr, Karim Medhat, J. Gledhill, Gledhill, Jeff, Bard, M, Nasr, K M   +11 more
core   +1 more source