Results 51 to 60 of about 3,241 (305)
Morphological and ionospheric aspects of quasiperiodic scintillations
, 1977 Mult́i-satellite scintillations, at a transmission frequency of 150 MHz, and associated vertical-incidence ionosonde data were recorded at Brisbane from November 1973-January 1976. A distinct type of regular amplitude fadings, so-called quasiperiodic (QP)
Hajkowicz L.A.
core +1 more source
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 +7 more
wiley +1 more source
Observations of GPS ionospheric scintillations over Wuhan during geomagnetic storms [PDF]
Annales Geophysicae, 2006 During the two geomagnetic storms which occurred on 1 October 2002 and 22 January 2004, the strong ionospheric scintillations of the GPS L1 band were observed at Wuhan station (30.6° N, 114.4° E, 45.8° Dip), which is ...
G. Li +7 more
doaj +1 more source
Study of equatorial scintillations [PDF]
, 1972 Observations of the amplitude scintillations produced by the F-region in equatorial areas are presented. The equipment used for conducting the observations is described.
Pomalaza, J. +3 more
core
Partially coherent off-axis Gaussian beam scintillations
, 2010 The scintillation index at the receiver origin is formulated for a partially coherent off-axis Gaussian beam in atmospheric turbulence by employing the extended Huygens-Fresnel principle.
Cai, Yangjian +5 more
core +1 more source
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 +10 more
wiley +1 more source
Inorganic scintillating materials and scintillation detectors
Proceedings of the Japan Academy, Series B, 2018 Scintillation materials and detectors that are used in many applications, such as medical imaging, security, oil-logging, high energy physics and non-destructive inspection, are reviewed. The fundamental physics understood today is explained, and common scintillators and scintillation detectors are introduced.
openaire +3 more sources
Radio Scintillations Near the F-region Anomaly Crest [PDF]
, 1987 357-359The amplitude scintillations at Bombay (lat., 19ᵒN; long., 73ᵒE), situated near the Appleton anomaly crest region, are found to be most prominent during equinoxial, less during winter and least during summer months. During the course of the night,
Koparkar, Pramila
core
Advanced Science, EarlyView.The cathode of proton exchange membrane water electrolyzers remains a poorly understood region despite its importance for hydrogen purity and operational safety. Operando synchrotron X‐ray radiography directly visualizes liquid water behavior and uncovers a transition from continuous to pulsating transport, providing new insight into multiphase ...
Wataru Yoshimune +2 more
wiley +1 more source
Scintillations in Southern Europe During the Geomagnetic Storm of June 2015
Remote SensingThe sensitivity of Global Navigation Satellite System (GNSS) receivers to ionospheric disturbances and their constant growth are nowadays resulting in an increased concern of GNSS users about the impacts of ionospheric disturbances at mid-latitudes.
Anna Morozova +8 more
doaj +1 more source