Results 51 to 60 of about 23,415 (245)

Real Heights of SuperDARN F Region Echoes Inferred From Electron Density Measurements by the Rankin Inlet and RISR‐C Radars

Radio Science, Volume 61, Issue 2, February 2026.
Abstract This study is one of the first attempts to estimate statistically the real height of SuperDARN F region echoes in the polar cap. To achieve this, measurements of the electron density in the scattering volume of the Rankin Inlet SuperDARN radar are compared with the electron density profiles measured by the incoherent scatter radar RISR‐C ...
Alexander V. Koustov, Mehdi Ghalamkarian Nejad, Hayden Fast, Pavlo V. Ponomarenko   +3 more
wiley   +1 more source

A Study on the Enhancement of Detection Performance of Space

Journal of Astronomy and Space Sciences, 2018
Radar sensors are used for space situational awareness (SSA) to determine collision risk and detect re-entry of space objects. The capability of SSA radar system includes radar sensitivity such as the detectable radar cross-section as a function of ...
Eun-Jung Choi, Jonghyun Lee, Sungki Cho, Hyun-Wook Moon, Jea-Myong Yum, Jang-Hyun Park, Jung Hyun Jo   +6 more
doaj   +1 more source

Engineered Multifunctional Hydrogel Delivering Novel CBX7 Inhibitor Modulates Cuproptosis Via Liquid–Liquid Phase Separation to Restore Cardiac Function in Aged Myocardial Infarction

Advanced Science, Volume 13, Issue 1, 5 January 2026.
An age‐adapted therapy pairs δ‐Amyrenone, a CBX7 inhibitor, with an alginate hydrogel (CSAδ) to rescue infarcted elderly hearts. CSAδ disrupts CBX7–ATP7A liquid–liquid phase separation, restores ATP7A trafficking and copper efflux, suppresses cuproptosis, supplies oxygen, scavenges ROS, promotes M2 polarization, supports angiogenesis, and enhances ...
Jun Liu, Peng Qu, Jiao Shi, Tingting Liang, Yao Gu, Xue Li, Cui Ma, Danyang Zhao, Feila Liu, Qi Liang, Panke Cheng, Qian Lei   +11 more
wiley   +1 more source

Performances of multitones for ultra-wideband software-defined radar [PDF]

, 2017
From the literature review, it is apparent that there is a gap in quantifying the performances of multitone waveforms specifically for radar applications and experimental results are not commonly found.
Le Kernec, Julien, Romain, Olivier
core   +2 more sources

Enhancing Microrobot Swarm Stability and Adaptation by Autonomous Field‐of‐View Planning

Advanced Intelligent Systems, Volume 8, Issue 1, January 2026.
This work presents an adaptive cross‐field‐of‐view navigation strategy for microrobot swarms in large‐scale workspaces by integrating global path planning via A* and local replanning using optimized informed rapidly‐exploring random tree star . The hybrid approach ensures efficient and robust trajectory execution in dynamic environments, enhancing the ...
Zhaowen Su, Lijun Fang, Hoyeon Kim, U. Kei Cheang   +3 more
wiley   +1 more source

Where numerical weather prediction meets large‐eddy simulations in a convective boundary layer during the FESSTVaL field experiment

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 774, January 2026 Part A.
We exploit the Field Experiment on Sub‐mesoscale Spatio‐Temporal Variability in Lindenberg (FESSTVaL) to compare the performance of an NWP model at sub‐km resolutions with a traditional LES model. Focusing on clear‐sky ABL turbulence (June 14), shallow convective clouds and surface radiation (June 27), and deep convective cold pools (June 29), we find ...
Mirjana Sakradzija, Maike Ahlgrimm, Frank Beyrich, Chiel van Heerwaarden, Eileen Päschke, Ulrich Görsdorf, Bastian Kirsch, Juerg Schmidli, Noviana Dewani   +8 more
wiley   +1 more source

Proposed satellite position determination systems and techniques for Geostationary Synthetic Aperture Radar [PDF]

, 2016
This paper proposes two different calibration techniques for Geostationary Synthetic Aperture Radar (GEOSAR) missions requiring a high precision positioning, based on Active Radar Calibrators and Ground Based Interferometry.
Broquetas Ibars, Antoni, Casado Blanco, David, Fernández Usón, Marc, Martin Fuster, Roger   +3 more
core   +2 more sources

Doppler Factor in the Omega-k Algorithm for Pulsed and Continuous Wave Synthetic Aperture Radar Raw Data Processing [PDF]

, 2023
Jhohan Jancco-Chara, Facundo Palomino-Quispe, Roger Jesus Coaquira-Castillo, Julio Cesar Herrera-Levano, Ruben Florez   +4 more
openalex   +1 more source

Characterizing trade‐wind shallow convection regimes in the open sea with a synergy of ship‐based vertical profiling observations

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 774, January 2026 Part A.
We use active remote sensing from a ship during the EUREC4$$ {\mathrm{EUREC}}^4 $$A campaign to characterize the environment before, during, and after precipitation in shallow convection. (1) Shallow clouds barely precipitate (only virga). Congestus clouds generate precipitation, occurring less often in the afternoon but with higher cloud fractions. (2)
Claudia Acquistapace, Sabrina Schnitt, Sibylle Krause, Nils Risse, Diego Lange, Dwaipayan Chatterjee   +5 more
wiley   +1 more source

Wrist Pulse Rate Monitor Using Self-Injection-Locked Radar Technology

Biosensors, 2016
To achieve sensitivity, comfort, and durability in vital sign monitoring, this study explores the use of radar technologies in wearable devices. The study first detected the respiratory rates and heart rates of a subject at a one-meter distance using a ...
Fu-Kang Wang, Mu-Cyun Tang, Sheng-Chao Su, Tzyy-Sheng Horng   +3 more
doaj   +1 more source