Results 31 to 40 of about 1,375,829 (260)

Boundary Determination of Concealed Structure Region Based on Electromagnetic Tomography

Meikuang Anquan, 2020
To further explore the root cause of the high roof collapse phenomenon of the 1303 working face, the high-precision tunnel detection of the 1303 working face was carried out by electromagnetic wave fixed point method, and three sets of structural ...
QU Xiaobing, BAO Junrui
doaj   +1 more source

Natural Frequencies of Levodopa‐Induced Dyskinesia in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Abnormal involuntary movements, known as dyskinesias, are common complications of levodopa treatment in patients with Parkinson's disease and can significantly impair quality of life. The underlying pathophysiology remains unclear, and current therapeutic options are limited.
Ioannis U. Isaias, Federica Avantaggiato, Gianni Pezzoli, Andrea Canessa   +3 more
wiley   +1 more source

Tracking and analysis of solar radio waves using a low-cost Radio Telescope in urban areas [PDF]

EPJ Web of Conferences
Radio telescopes are specialized instruments to detect radio-waves between 30MHz-300GHz from different astronomical sources. It has ability to capture radio signals from satellites effectively during high light pollution and cloudy weather.
Chandra Isita, Ghosh Arnab, Chatterjee Ayan, Ganguly Rajiv   +3 more
doaj   +1 more source

Interaction of suprathermal solar wind electron fluxes with sheared whistler waves: fan instability [PDF]

Annales Geophysicae, 2003
Several in situ measurements performed in the solar wind evidenced that solar type III radio bursts were some-times associated with locally excited Langmuir waves, high-energy electron fluxes and low-frequency electrostatic and electromagnetic ...
C. Krafft, A. Volokitin
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Smart radio environments empowered by reconfigurable AI meta-surfaces: an idea whose time has come

EURASIP Journal on Wireless Communications and Networking, 2019
Future wireless networks are expected to constitute a distributed intelligent wireless communications, sensing, and computing platform, which will have the challenging requirement of interconnecting the physical and digital worlds in a seamless and ...
Marco Di Renzo, Merouane Debbah, Dinh-Thuy Phan-Huy, Alessio Zappone, Mohamed-Slim Alouini, Chau Yuen, Vincenzo Sciancalepore, George C. Alexandropoulos, Jakob Hoydis, Haris Gacanin, Julien de Rosny, Ahcene Bounceur, Geoffroy Lerosey, Mathias Fink   +13 more
doaj   +1 more source

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

Advanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source

Ontology‐Aligned Structuring and Reuse of Multimodal Materials Data and Workflows Toward Automatic Reproduction

Advanced Engineering Materials, EarlyView.
Reproduction of stacking fault energy calculations from literature with a semi‐automated large language model‐assisted extraction procedure: extraction of simulation protocol, atomistic structures, computational parameters, and reported results, ontology alignment, knowledge graph construction and, finally, recomputation forvalidation.
Sepideh Baghaee Ravari, Abril Azocar Guzman, Sarath Menon, Stefan Sandfeld, Tilmann Hickel, Markus Stricker   +5 more
wiley   +1 more source

Effect of Density Irregularities on Radio Frequency Wave Propagation in Ionospheric Plasmas [PDF]

EPJ Web of Conferences
Density irregularities play a vital role in determining how radio frequency (RF) waves travel through plasmas. In the Earth’s ionosphere, these density irregularities also impact radio communication.
Kim Eun-Hwa, Johnson Jay R., Shiraiwa Syun’ichi, Bertelli Nicola, Ono Masayuki, Wing Simon   +5 more
doaj   +1 more source

The Effect of the Parametric Decay Instability on the Morphology of Coronal Type III Radio Bursts

The Astrophysical Journal Letters, 2023
The nonlinear evolution of Alfvén waves in the solar corona leads to the generation of Alfvénic turbulence. This description of the Alfvén waves involves parametric instabilities where the parent wave decays into slow mode waves giving rise to density ...
Chaitanya Prasad Sishtla, Immanuel Christopher Jebaraj, Jens Pomoell, Norbert Magyar, Marc Pulupa, Emilia Kilpua, Stuart D. Bale   +6 more
doaj   +1 more source