Results 61 to 70 of about 3,241 (305)

Study of VHF Satellite Scintillations at a Low Latitude Station [PDF]

, 1983
202-207The amplitude scintillations at 136.1 MHz radio transmission from the geostationary satellite ETS-II at Kurukshetra (29.9 N, 70.8 E) have been recorded during the period Oct. 1978-Sep 1979.
Dabas, R S, Bhardwaj, R K, Dutra, H N, Lal, J B   +3 more
core  

VHF radio scintillations at Bombay

, 1985
The simultaneous recordings of the amplitude scintillations of VHF radio signals from nearby geostationary satellites FLEETSAT (at 73°E long.) and SIRIO (at 65°E) received at Bombay (geog. lat. 19°N, geog. long. 73°E, mag. lat.
Rastogi, R. G., Koparkara, P. V.
core   +1 more source

Supercapacitor Safety: Overcharge‐Induced Failure Mechanisms in Electrochemical Double‐Layer Capacitors

Advanced Science, EarlyView.
Time‐resolved synchrotron radiography reveals the internal evolution of electrochemical double‐layer capacitors under abusive overcharge. EDLCs are shown to follow a thermally driven failure pathway involving electrolyte decomposition, gas generation, and structural collapse, distinct from chemically driven thermal runaway effects of Lithium‐ion ...
Thomas Dore, Inez Kesuma, Abdus S. Ali, Jonas Pfaff, Yuxiao Jin, Rosalie Hamill, Mark Buckwell, Hamish Reid, Thomas Finco, Zeyu Sun, Yuanze Li, Sebastian Schopferer, Siegfried Nau, Nils Böttcher, Henning Markötter, Alexander J. E. Rettie, James Robinson, Paul R. Shearing, Alexander Rack, Thomas S. Miller   +19 more
wiley   +1 more source

Ionospheric Scintillations of vhf Radio Signals from Satellites at Ahmedabad [PDF]

, 1978
9-12The Faraday fading records of radio beacons from low orbiting satellites Explorer 22 and 27 recorded at Ahmedabad are analyzed for the occurrence of scintillations.
Iyer, K N, Rastogi, R G
core  

Generating sequences of acoustic scintillations

, 2017
Spatial and temporal inhomogeneities in temperature and wind velocity affect sound propagation resulting in amplitude and phase fluctuations called scintillations.
K. Heutschi, Forss\ue9n, Jens, J. Forssén, F. Rietdijk, Heutschi, K.,, Forssén, Jens, Heutschi, K., Rietdijk, Frederik,, Forssén, Jens,, Rietdijk, Frederik, Heutschi, K. (author), Rietdijk, F. (author), Forssén, J. (author)   +12 more
core   +1 more source

Microfluidic Gratings for X‐Ray Phase Contrast Imaging

Advanced Science, EarlyView.
This work establishes a new protocol for the fabrication of X‐ray gratings that exploits the advantages of microfluidics and enables a more inexpensive, faster, and scalable production process. These X‐ray devices are fundamental for implementing X‐ray phase contrast imaging (XPCI) in laboratory and clinical settings, yet their costly and complex ...
Alessandro Rossi, Antonio Ferraro, Francesco Coccimiglio, Tiziana Ritacco, Alberto Astolfo, Michele Giocondo, Vincenzo Formoso, Raffaele Giuseppe Agostino, Francesco Iacoviello, Ioannis Papakonstantinou, Alessandro Olivo   +10 more
wiley   +1 more source

Role of the magnetospheric and ionospheric currents in the generation of the equatorial scintillations during geomagnetic storms [PDF]

Annales Geophysicae, 2004
The equatorial ionosphere parameters, Kp, Dst, AU and AL indices characterized contribution of different magnetospheric and ionospheric currents to the H-component of geomagnetic field are examined to test the geomagnetic activity effect on the ...
L. Z. Biktash
doaj   +1 more source

Reversible, Chemically Gated FRET via Ligand‐Activated Acceptors

Advanced Science, EarlyView.
Fluorogen binding turns the compact FAST tag into a tunable FRET acceptor, with ligand chemistry programming spectral overlap and excited‐state lifetimes. Fluorescence‐lifetime imaging reads out energy transfer through the shortened donor lifetime, while simply adding or washing out the dye switches FRET on and off, reversibly mapping the supramodular ...
Nivedita Singh, Smruti Ranjan Nayak, Sanjay Kumar Mohanty, Aishwarya Hanumantharaju, Amala Shaju, Mini Jose, Aravind Penmatsa, Deepak Nair   +7 more
wiley   +1 more source

Supramolecular Enforcement of Planar Tetracoordinate Halides

Angewandte Chemie, EarlyView.
A calix[4]pyrrolato‐indium scaffold preorganizes Li4 pockets that trap Cl−, Br−, and I− in strongly flattened to square‐planar tetracoordinate environments. Computations reveal low planarization energies for the heavier halides, while crystallography shows that their geometry is readily modulated by subtle supramolecular and packing effects ...
Jie Zhang, Avijit Maiti, Lutz Greb
wiley   +2 more sources

Machine learning approach for prediction of total electron content and classification of ionospheric scintillations over Visakhapatnam region

AIP Advances, 2023
Ionospheric scintillations, which are due to ionospheric plasma density anomalies, negatively impact trans-ionospheric signals and the positioning accuracy of the global navigation satellite system (GNSS).
Shiva Kumar Nimmakayala, Srilatha Indira Dutt V.B.S   +1 more
doaj   +1 more source