Results 71 to 80 of about 789,573 (302)

Exponential model of radio refractive index over india

open access: yesIEE-IERE Proceedings - India, 1969
Based on the radiosonde data during 1956-1960 biexponential model of radio refractive index has been derived at12 stations in India for the four representative months recommended by International Radio Consultative Committee (CCIR), viz., February, May, August and November.
HN SRIVASTAVA, RB PATHAK
openaire   +1 more source

Generating Unconventional Spin‐Orbit Torques With Patterned Phase Gradients in Tungsten Thin Films

open access: yesAdvanced Materials, EarlyView.
ABSTRACT A key aim in spintronics is to achieve current‐induced magnetization switching via spin‐orbit torques without external magnetic fields. For this, the focus of recent work has been on introducing controlled lateral gradients across ferromagnet/heavy‐metal devices, giving variations in thickness, composition, or interface quality.
Lauren J. Riddiford   +9 more
wiley   +1 more source

The refractivity of Co sub 2 under simulated martian conditions [PDF]

open access: yes, 1969
Refractivity of carbon dioxide under simulated Martian conditions by radio ...
Howard, H. T., Tyler, G. L.
core  

Radio-climatology of India : Radio Refractive Index near the ground surface

open access: yesMAUSAM, 1966
Based on the 5.year averages of the values of pressure, temperature and relative humidity near the ground surface corresponding values of radio refractive index have been computed for 36 stations in India. These data have then been used to describe and discuss the monthly and seasonal distribution of the radio refractive index near the ground.
S. M. KUILSHRESTHA, K. CHATTERJEE
openaire   +1 more source

Toward Pore‐Engineered 3D‐Printed Materials for Sorption Water Harvesting, Interfacial Evaporation, and Radiative Cooling

open access: yesAdvanced Materials, EarlyView.
Water harvesting, radiative cooling, and interfacial solar evaporation are fundamentally governed by coupled heat, mass, and light transport processes. These processes are mediated by pore architecture, including pore size, connectivity, and hierarchical organization.
Dejan J. Trajkovski   +5 more
wiley   +1 more source

Spectral Selective and Low‐Noise Thin‐Film Organic Photodetectors Enabled by Electric‐Field Engineering

open access: yesAdvanced Materials, EarlyView.
Molecular doping redistributes the internal electric field in organic photodetectors, providing a new degree of freedom to spatially control carrier transport and collection. Simulations and experiments reveal distinct transport pathways for injected and photogenerated carriers, enabling low dark current under reverse bias and wavelength‐selective ...
Jingwei Yi   +15 more
wiley   +1 more source

Diurnal and Seasonal Variation of Surface Refractivity in Minna and Lapai, North Central Nigeria [PDF]

open access: yes, 2018
Spatial and temporal variations of surface refractivity, Ns, in the troposphere are important parameters in designing terrestrial communication links.
O. D., Oyedum   +4 more
core   +1 more source

Quality assessment of YUNYAO radio occultation data in the neutral atmosphere [PDF]

open access: yesAtmospheric Measurement Techniques
Global Navigation Satellite System (GNSS) radio occultation (RO) data are an important component of numerical weather prediction (NWP) systems. To incorporate more GNSS-RO data into NWP systems, commercial RO data have become an excellent option. Tianjin
X. Xu   +9 more
doaj   +1 more source

Refractive interstellar scintillation of radio sources

open access: yesThe Astrophysical Journal, 1986
On propose une theorie simplifiee pour le phenomene de scintillation interstellaire refractive et on l'examine en tant qu'interpretation possible des variations observees pour de nombreuses ...
openaire   +1 more source

Ionic Gating of Liquid‐Crystal‐Like Pteridine Assemblies Enables Tunable Light Scattering

open access: yesAdvanced Materials, EarlyView.
Tunable optical properties emerge through developmentally regulated ionic gating, which transforms disordered, ultraviolet (UV)‐absorbing organelles into concentrically ordered, liquid‐crystal‐like light scatterers. By integrating analyses of pteridine composition, potassium‐dependent assembly, hierarchical ultrastructure, and optical behavior, the ...
Sourabh Bera   +22 more
wiley   +1 more source

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