Results 81 to 90 of about 224,684 (308)
The physical theory of one dimensional galactic cosmic-ray propagation in the atmosphere [PDF]
, 1972 An analytical theory of atmospheric cosmic-ray propagation is developed based on a phenomenological model of hadron-nucleus collisions. This model correctly predicts the sea level cosmic-ray nucleon, pion and muon spectra, the cosmic-ray ionization ...
Obrien, K.
core +1 more source
Propagation Delay in the Atmosphere [PDF]
Radio Science, 1972 Calculations of the propagation delay due to the atmosphere in satellite‐to‐earth communication are reported for the frequency range 1 to 15 GHz. A spherically symmetric, smoothly varying model is assumed for the atmosphere, and the techniques of geometrical optics are employed.
openaire +1 more source
Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC
Advanced Engineering Materials, EarlyView.ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko +2 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi +7 more
wiley +1 more source
Squeezing-enhanced quantum key distribution over atmospheric channels
, 2018 We propose the Gaussian continuous-variable quantum key distribution using squeezed states in the composite channels including atmospheric propagation with transmittance fluctuations.
Derkach, Ivan +2 more
core
Advanced Engineering Materials, EarlyView.Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin +5 more
wiley +1 more source
Protecting entanglement of twisted photons by adaptive optics
, 2018 We study the efficiency of adaptive optics (AO) correction for the free-space propagation of entangled photonic orbital-angular-momentum (OAM) qubit states, to reverse moderate atmospheric turbulence distortions.
Buchleitner, Andreas +4 more
core +1 more source
Editorial-Special Issue on "Optical and RF Atmospheric Propagation". [PDF]
Sensors (Basel), 2023 Kopeika N, Raj AAB.
europepmc +1 more source
Advanced Engineering Materials, EarlyView.Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller +8 more
wiley +1 more source
Atmospheric effects on CO2 laser propagation [PDF]
An investigation was made of the losses encountered in the propagation of CO2 laser radiation through the atmosphere, particularly as it applies to the NASA/Marshall Space Flight Center Pulsed Laser Doppler System.
Bilbro, J. W., Murty, S. S. R.
core +1 more source