Results 81 to 90 of about 35,368 (282)

Monitoring of the Earth’s ionosphere by a small satellite constellation

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016
Existing radar aids for the research of the ionosphere and ionosondes allow only local diagnostics of the ionosphere. Creating a network of traditional tools of radio sounding of ionosphere is quite difficult and expensive.
O. V. Phylonin, P. N. Nikolayev
doaj   +1 more source

Sounding the vertical structure of horizontally oriented frozen particles using Polarimetric Radio Occultation observations aboard PAZ

open access: yes, 2021
Comunicación expuesta online en el 3rd International Summer Snowfall Workshop (2021) celebrado del 31 de agosto al 3 de septiembre.
Padullés, Ramon   +8 more
openaire   +1 more source

Photometric Studies of Auroral Luminosity and its Connection with Some Atmosphere Ionization Phenomena [PDF]

open access: yes, 1958
The auroral radiation, 3914 AO, received from the entire sky on a horizontal diffusing plate was monitored continuously during the nights of 1955-56 and 1956-57. The 1955-56 data and part of the 1956-57 data were used to obtain a diurnal curve for the
Murcray, W. B.
core  

Searching for effects caused by thunderstorms in midlatitude sporadic E layers [PDF]

open access: yes, 2017
Possible thunderstorm - sporadic E (Es) layer coupling effects are investigated during two measurement periods, one in 2013 and one in 2014. The analysis was based on ionospheric observations obtained from a Digisonde at Pruhonice, the Czech Republic, an
Barta, Veronika   +10 more
core   +2 more sources

Integration of Low‐Voltage Nanoscale MoS2 Memristors on CMOS Microchips

open access: yesAdvanced Functional Materials, EarlyView.
This article presents the first monolithic integration of nanoscale MoS2‐based memristors into the back‐end‐of‐line of foundry‐fabricated CMOS microchips in a one‐transistor‐one‐resistor (1T1R) architecture. The MoS2‐based 1T1R cells exhibit forming‐free, nonvolatile resistive switching with ultra‐low operating voltages, low cycle‐to‐cycle variability ...
Jimin Lee   +16 more
wiley   +1 more source

28 GHz Microcell Measurement Campaign for Residential Environment

open access: yes, 2017
This paper presents results from the (to our knowledge) first double-directionally resolved measurement campaign at mm-wave frequencies in a suburban microcell.
Bas, C. Umit   +7 more
core   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

open access: yesAdvanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit   +5 more
wiley   +1 more source

Dense multipath component polarization and wall attenuation at 1.35 GHz in an office environment [PDF]

open access: yes, 2018
This paper presents an analysis of dense multipath components in office meeting rooms. Radio channel sounding measurements at 1.35 GHz were performed with transmitter and receiver in the same room (intra-room) and in adjacent rooms (inter-room). Specular
Bellekens, Ben   +11 more
core   +1 more source

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

open access: yesAdvanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan   +7 more
wiley   +1 more source

Optimal economic and emission dispatch of photovoltaic integrated power system using firefly algorithm [PDF]

open access: yes, 2020
The main purpose of Economic Load Dispatch (ELD) is to determine the optimal output of generating units to meet the power demand at lowest possible cost and subjected to the operational constraints. Various ELD optimization methods have been developed in
Muhamad Salim, Muhamad Solahuddin
core  

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