Results 71 to 80 of about 53,100 (266)

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

CO2 Fluxes and Soil Responses to Straw and Herbicide in Peanut

Land Degradation &Development, EarlyView.
ABSTRACT Peanut cultivation plays an important agronomic role in Brazil, especially in rotation with sugarcane, promoting biological nitrogen fixation and improving soil quality. This study aimed to test the hypothesis that the combined use of sugarcane mulch, peanut cultivation, and herbicide application would affect soil CO₂ fluxes, soil chemical ...
Heytor Lemos Martins, Vitor Adriano Benedito, Arianis Ibeth Santos‐Nicolella, Treyce Stephane Cristo Tavares, Rodrigo Baratiere Perim, Vanesca Korasaki, Newton La Scala Jr., Pedro Luís da Costa Aguiar Alves   +7 more
wiley   +1 more source

Trojan-horse attacks threaten the security of practical quantum cryptography

New Journal of Physics, 2014
A quantum key distribution (QKD) system may be probed by an eavesdropper Eve by sending in bright light from the quantum channel and analyzing the back-reflections. We propose and experimentally demonstrate a setup for mounting such a Trojan-horse attack.
Nitin Jain, Elena Anisimova, Imran Khan, Vadim Makarov, Christoph Marquardt, Gerd Leuchs   +5 more
doaj   +1 more source

UAV-Based GNSS-R for Water Detection as a Support to Flood Monitoring Operations: A Feasibility Study

Applied Sciences, 2019
Signals from global navigation satellite systems (GNSS) can be utilized as signals of opportunity in remote sensing applications. Geophysical properties of the earth surface can be detected and monitored by processing the back-scattered GNSS signals from
Rayan Imam, Marco Pini, Gianluca Marucco, Fabrizio Dominici, Fabio Dovis   +4 more
doaj   +1 more source

Gate reflectometry in dense quantum dot arrays

New Journal of Physics, 2023
Silicon quantum devices are maturing from academic single- and two-qubit devices to industrially-fabricated dense quantum-dot (QD) arrays, increasing operational complexity and the need for better pulsed-gate and readout techniques.
Fabio Ansaloni, Heorhii Bohuslavskyi, Federico Fedele, Torbjørn Rasmussen, Bertram Brovang, Fabrizio Berritta, Amber Heskes, Jing Li, Louis Hutin, Benjamin Venitucci, Benoit Bertrand, Maud Vinet, Yann-Michel Niquet, Anasua Chatterjee, Ferdinand Kuemmeth   +14 more
doaj   +1 more source

UV Exposed Optical Fibers with Frequency Domain Reflectometry for Device Tracking in Intra-Arterial Procedures

, 2017
Shape tracking of medical devices using strain sensing properties in optical fibers has seen increased attention in recent years. In this paper, we propose a novel guidance system for intra-arterial procedures using a distributed strain sensing device ...
B Fuerst, J Song, K Mandal, M Froggatt, R Roesthuis, S Elayaperumal, S Loranger, YL Park   +7 more
core   +1 more source

Which Patients With Dysfunctional Voiding Respond Well to Sacral Neuromodulation? ICI‐RS 2025

Neurourology and Urodynamics, EarlyView.
ABSTRACT Aims Dysfunctional voiding (DV) is characterised by fluctuating or intermittent urinary flow during voiding in neurologically normal individuals. Given the different definitions used and heterogeneous pathophysiologies, outcomes following sacral neuromodulation/sacral nerve stimulation (SNM/SNS) are variably reported.
Jalesh N. Panicker, Chris Harding, Hashim Hashim, Claire Hentzen, Nikita Bhatt, Arjun Nambiar, Brigitte Schurch, Mathijs de Rijk, Stefania Musco   +8 more
wiley   +1 more source

Strain Development During Cure of Partially Pre‐Cured Thermosetting Composites Measured With Distributed Fiber Optic Sensors

Polymer Composites, EarlyView.
Schematic representation of the beneficial effect of ply pre‐curing on temperature overshoot, internal strain and warpage during cure of thin and thick thermosetting composites. ABSTRACT Detection of manufacturing‐induced defects in thermosetting composites is crucial to guarantee part quality, safety, and improve manufacturing efficiency.
Francesco Taddei, Giacomo Struzziero, Valentin Ott, Véronique Michaud   +3 more
wiley   +1 more source

GNSS Transpolar Earth Reflectometry exploriNg System (G-TERN): Mission Concept

IEEE Access, 2018
The global navigation satellite system (GNSS) Transpolar Earth Reflectometry exploriNg system (G-TERN) was proposed in response to ESA’s Earth Explorer 9 revised call by a team of 33 multi-disciplinary scientists.
Estel Cardellach, Jens Wickert, Rens Baggen, Javier Benito, Adriano Camps, Nuno Catarino, Bertrand Chapron, Andreas Dielacher, Fran Fabra, Greg Flato, Heinrich Fragner, Carolina Gabarro, Christine Gommenginger, Christian Haas, Sean Healy, Manuel Hernandez-Pajares, Per Hoeg, Adrian Jaggi, Juha Kainulainen, Shfaqat Abbas Khan, Norbert M. K. Lemke, Weiqiang Li, Son V. Nghiem, Nazzareno Pierdicca, Marcos Portabella, Kimmo Rautiainen, Antonio Rius, Ingo Sasgen, Maximilian Semmling, C. K. Shum, Francois Soulat, Andrea K. Steiner, Sebastien Tailhades, Maik Thomas, Roger Vilaseca, Cinzia Zuffada   +35 more
doaj   +1 more source