Results 51 to 60 of about 11,729,249 (285)

Poly(Alkoxythiophene) Rod‐Coil Block Copolymers for Organic Electrochemical Transistors

Advanced Materials, EarlyView.
We present the first synthesis of poly(3‐alkoxythiophene) rod‐coil block copolymers as a new architecture for OMIECs. Incorporating PEG and PLLA coils can enhance device performance beyond the homopolymer. The figure‐of‐merit depends uniquely on coil length.
Junfu Tian, Wentao Shan, Rachael Found, Paola Mantegazza, Francesco Leoni, Andreas W. Erhardt, Yuyun Yao, Matus Stredansky, Arianna Magni, Adam Marks, Elena Chulanova, Zeinab Hamid, Yueying Huang, Wanpeng Lu, Xian'e Li, Baopu Zhang, Qingpei Wan, Christina Kousseff, Matilde Concilio, Ruth Theresia Arwani, Caroline A. Ross, Sahika Inal, Giovanni Costantini, Iain McCulloch   +23 more
wiley   +1 more source

Development of the radio astronomical method of cosmic particle detection for extremely high-energy cosmic ray physics and neutrino astronomy

EPJ Web of Conferences, 2017
The proposal to use ground based radio telescopes for detection of Askaryan radio pulses from particle cascades arising when extremely high-energy (EHE > 1020 eV) cosmic rays (including neutrinos) interact with the lunar regolith of multi gigaton mass ...
Zheleznykh Igor, Dagkesamanskii Rustam, Dedenko Leonid, Dedenko Grigorii   +3 more
doaj   +2 more sources

Low Frequency Radio Astronomy from Earth Orbit [PDF]

International Astronomical Union Colloquium, 1990
AbstractLow frequency radio astronomy for the purpose of this discussion is defined as frequencies ≲100 MHz. Since the technology is fairly simple at these frequencies and even Jansky’s original observations were made at 20.5 MHz, there have been many years of research at these wavelengths.
Kurt W. Weiler, Namir E. Kassim
openaire   +1 more source

Low frequency astronomy — The challenge in a crowded RFI environment [PDF]

, 2011
Low frequency radio astronomy is a hot topic at the moment. Many large arrays of antennas are built to facilitate the astronomical research on low frequencies.
Albert-Jan Boonstra, Boonstra, Albert Jan, Mark J. Bentum, Bentum, Marinus Jan   +3 more
core   +1 more source

Elasticity‐Driven Periodic Polarization Patterns in a Chiral Ferroelectric Nematic Fluid

Advanced Materials, EarlyView.
Chiral polar ferroelectric nematic fluids exhibit spontaneous formation of stripe, square, and hexagonal polarization textures under confinement. Controlled by thickness and anchoring, these patterns produce spatially modulated nonlinear optical responses.
Anej Sterle, Peter Medle Rupnik, Luka Cmok, Aitor Erkoreka, Marta Lavrič, Natan Osterman, Calum J. Gibb, Jordan Hobbs, Josu Martinez‐Perdiguero, Richard J. Mandle, Alenka Mertelj, Nerea Sebastián   +11 more
wiley   +1 more source

Strong Coupling in Bulk Nanoplasmonic Nanoplatelet Perovskite Scintillators

Advanced Materials, EarlyView.
A bulk scintillating nanocomposite is engineered from CsPbBr3 nanoplatelets and Ag nanocubes to support exciton–plasmon strong coupling under X‐ray excitation. The resulting hybrid polaritonic states appear directly in radioluminescence, opening a route toward polariton‐enabled scintillator design beyond conventional Purcell enhancement.
Michal Makowski, Dominik Kowal, Anna Pniakowska, Kamil Misztal, Mohanad Saadeldin Eid, Joanna Cybinska, Winicjusz Drozdowski, Benoit Mahler, Christophe Dujardin, Detlef Hommel, Liang Jie Wong, Dennis Schaart, Sergio Brovelli, Muhammad Danang Birowosuto   +13 more
wiley   +1 more source

Design a radio receiver for solar activity observation in VLF band

Al-Khawarizmi Engineering Journal, 2023
Solar activity monitoring is important in our life because of its direct or indirect influence on our life, not only on ionospheric communications. To study solar activity, researchers need measuring and monitoring instruments, these instruments are ...
Ahmed Al Banna
doaj   +1 more source

Radio physics and radio astronomy

, 1996
International audiencePurpose: Review of investigations of cosmic sources radioemission scintillations due to interplanetary plasma irregularities made at the Institute of Radio Astronomy of the National Academy of Sciences of Ukraine, from the first ...
Brazhenko, A, I, Ivantyshyn Karpenko, O, L, Lytvynenko, O, O, Zarka, P, Lesia, A, Lecacheux, Institute, Physiko-Mechanical, Kuhai, N, V, Kalinichenko, M, M, Romanchuk, O, I, Frantsuzenko, A, V, Bubnov, I, M, Yerin, S, M, Rucker, H, O, Konovalenko, O, O, Rucker, H,, Brazhenko, A,, Bubnov, I,, Ivantyshyn Karpenko, O,, Konovalenko, O,, Lytvynenko, O,, Kalinichenko, M,, Romanchuk, O,, Frantsuzenko, A,, Yerin, S,, Kuhai, N,, Lesia, A,   +25 more
core   +1 more source

Parity‐Dependent THz Harmonic Generation in Electrically Pumped Micro‐Lasers Exploiting Topological Insulator–Metamaterial Gratings

Advanced Materials, EarlyView.
Topological insulator–metamaterials integrated with electrically driven terahertz quantum cascade lasers enable parity‐dependent harmonic generation. Bulk‐dominated Bi2Se3 favors third‐harmonic emission at 9.96 THz, whereas topological‐surface‐state‐dominated Bi2Se3, Bi2Te3, and (Bi,Sb)2Te3 generate strong second harmonics near 6.5 THz.
Alessandra Di Gaspare, Craig S. Knox, Ahmet Yagmur, Sara Ghayeb Zamharir, Lianhe Li, Satoshi Sasaki, A. Giles Davies, Edmund H. Linfield, Joshua R. Freeman, Miriam S. Vitiello   +9 more
wiley   +1 more source

Spiking neural networks for radio frequency interference detection in radio astronomy

Communications Physics
Automated systems capable of real-time operation with minimal energy consumption are increasingly important in modern radio telescopes. Spiking Neural Networks (SNNs) promise efficient and dynamic spatio-temporal data processing.
Nicholas J. Pritchard, Andreas Wicenec, Mohammed Bennamoun, Richard Dodson   +3 more
doaj   +1 more source