Results 41 to 50 of about 167,153 (243)

Interstellar Scintillation, ISS, and Intrinsic Variability of Radio AGN [PDF]

, 2020
We investigate the relationship between the 5 GHz interstellar scintillation (ISS) and the 15 GHz intrinsic variability of the compact, radio-selected active galactic nuclei (AGN) common to the Microarcsecond Scintillation-Induced Variability (MASIV ...
Lovell, James, Kiehlmann, Sebastian, Readhead, Anthony, Ojha, Roopesh, Vedantham, H., Koay, J. Y., Lovell, J, Reynolds, Cormac, Kiehlmann, S., Readhead, Anthony C. S., Macquart, Jean-Pierre, Jauncey, David L., Max-Moerbeck, W., Pursimo, T, Bignall, Hayley, Pursimo, Tapio, Max-Moerbeck, Walter, Rickett, Barney, Giroletti, M., Readhead, A. C. S., Hovatta, Talvikki, Kedziora Chudczer, Lucyna, Macquart, J. P, Bignall, Hayley E, Hovatta, T, Vedantham, Harish, Giroletti, Marcello, Kedziora-Chudczer, Lucyna, Koay, Jun Yi, Jauncey, David, Ojha, R   +30 more
core   +1 more source

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

Advanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong, James Trevarthen, Igor Dolbnya, Wadwan Singhapong, Nicholas Pilato, Richard Butler, Jiraphant Srisuriyachot, Alexander J. G. Lunt   +7 more
wiley   +1 more source

GOLD plasma bubble observations comparison with geolocation of plasma irregularities by back propagation of the high-rate FORMOSA7/COSMIC 2 scintillation data

Frontiers in Astronomy and Space Sciences
Using the high-rate phase and amplitude scintillation data from FORMOSA7/COSMIC two mission and back-propagation method, we geolocate plasma irregularities that cause scintillations.
Qian Wu, Qian Wu, John Braun, Sergey Sokolovskiy, William Schreiner, Nicholas Pedatella, Nicholas Pedatella, Jan-Peter Weiss, Iurii Cherniak, Irina Zakharenkova   +9 more
doaj   +1 more source

Observations and modeling of scintillation in the vicinity of a polar cap patch

Journal of Space Weather and Space Climate, 2022
Small-scale ionospheric plasma structures can cause scintillation in radio signals passing through the ionosphere. The relationship between the scintillated signal and how plasma structuring develops is complex.
Lamarche Leslie J., Deshpande Kshitija B., Zettergren Matthew D.   +2 more
doaj   +1 more source

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

Advanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu, Zhenwen Zhao, Yangjie Wang, Zhigang Liu, Zhijie Liu, Xiaoling Li, Zhichen Mao, Lu Xu, Gan Lin, Gang Liu, Hongjuan Ma   +10 more
wiley   +1 more source

Effective scintillation materials based on solid solutions ZnS1–xTex and perspectives of their application

Технологія та конструювання в електронній апаратурі, 2011
The optimal technological regime of formation ZnS1–xTex solid solution at spacing 0,0≤х≤0,1 has been determined, and has been shown that fritting in hydrogen atmosphere results in more rapid reaction in comparison to argon due to chemical-thermal etching
K. A. Katrunov, A. I. Lalayantz, L. P. Gal’chinetskiy, N. V. Starzhinskiy, A. V. Zhukov, S. N. Galkin, Ye. Yu. Brilyova, I. M. Zenya, O. G. Trubaeva   +8 more
doaj  

Spacecraft radio signal polarization calibration

Frontiers in Astronomy and Space Sciences
IntroductionThe only reliable method to remotely obtain magnetic field information across large swaths of interplanetary/interstellar plasma is with the measurement of Faraday rotation of polarized radio signals.MethodsFocusing on the high frequency ...
Elizabeth A. Jensen, Elizabeth A. Jensen, Amanda Kepley, David Wexler, Adam Kobelski, Jason E. Kooi, Aahil Valliani, Aidan Cho, Egan Heisey-Grove, Anshu Kumari, Shing F. Fung   +10 more
doaj   +1 more source

Evaluation of the Scintillation Loss for Optical Communication Systems with Direct Detection [PDF]

, 2006
In optical communications through the atmosphere, the evaluation of a link feasibility often requires the quantification of the scintillation penalty in terms of power loss. To find how much additional optical power is needed to reach the bit-error-rate (
Perlot, Nicolas
core  

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

Wide-band chalcogenide scintillators on the basis of AIIBVI compounds

Технологія та конструювання в електронній апаратурі, 2012
The formation characteristics of chalcogenide scintillators (CS) based on zinc sulfide and selenide are considered. The research has shown that such scintillators have high specific light yield, low afterglow level, short luminescence time, low value of ...
N. G. Starzhinskiy, B. V. Grinyov, V. D. Ryzhikov, Yu. V. Maliykin, A. V. Zhukov, О. Ts. Sidletskiy, I. M. Zenya, A. I. Lalayants   +7 more
doaj