Results 91 to 100 of about 29,016 (334)

The Determination Method of Corner Length Using Depolarizing Trihedral Corner Reflectors

open access: yesProcedia Computer Science, 2019
Abstract It is already been testified that, with the help of corrugations, depolarizing trihedral corner reflectors can be applied in polarization stimulation of targets. However, how to choose the size of the reflector to stimulate a target is still indistinct.
Chaoying Zhu   +3 more
openaire   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

ENERGY-EFFICIENT PASSIVE ANTENNA CODE PULSE MODULATION DUE TO THE REFLECTION OF MICROWAVE SIGNAL

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2016
The article describes an antenna in a corner reflector with a p-i-n-diodes, integrated with the housing transceiver, which allows not only to provide bidirectional communication with the base station as a result of multipath radio three times, but with ...
T. A. Ismailov   +4 more
doaj   +1 more source

Long-term degradation of optical devices on the moon

open access: yes, 2010
Forty years ago, Apollo astronauts placed the first of several retroreflector arrays on the lunar surface. Their continued usefulness for laser-ranging might suggest that the lunar environment does not damage optical devices.
Alley   +16 more
core   +1 more source

PASTA‐ELN: Simplifying Research Data Management for Experimental Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
Research data management faces ongoing hurdles as many ELNs remain complex and restrictive. PASTA‐ELN offers an open‐source, cross‐platform solution that prioritizes simplicity, offline access, and user control. Its in tuitive folder structure, modular Python add‐ons, and open formats enable seamless documentation, FAIR data practices, and easy ...
S. Brinckmann, G. Winkens, R. Schwaiger
wiley   +1 more source

InSAR monitoring of a challenging closed mine site with corner reflectors [PDF]

open access: bronze, 2022
Edward Sage   +5 more
openalex   +1 more source

Pentagonal 2D Altermagnets: Material Screening and Altermagnetic Tunneling Junction Device Application

open access: yesAdvanced Functional Materials, EarlyView.
From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang   +8 more
wiley   +1 more source

Dynamic Doppler Characteristics of Maritime Airborne Corner Reflector

open access: yesJournal of Marine Science and Engineering
The maritime airborne corner reflector (ACR) is a radar reflector that can measure wind speed in an unknown sea area in real time over a long distance. To improve our understanding of how the ACR works, we investigated the Doppler characteristics of the ...
Lingang Wu   +5 more
doaj   +1 more source

Study of Membrane Reflector Technology [PDF]

open access: yes
Very large reflective surfaces are required by future spacecraft for such purposes as solar energy collection, antenna surfaces, thermal control, attitude and orbit control with solar pressure, and solar sailing.
Hedgepeth, J., Knapp, K.
core   +1 more source

Research of the active reflector antenna using laser angle metrology system

open access: yes, 2012
Active reflector is one of the key technologies for constructing large telescopes, especially for the millimeter/sub-millimeter radio telescopes. This article introduces a new efficient laser angle metrology system for the active reflector antenna of the
Ai-Hua Li   +14 more
core   +1 more source

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