Results 11 to 20 of about 345,428 (274)

A Regenerative Heat Storage System for Central Receiver Technology Working with Atmospheric Air

open access: yesEnergy Procedia, 2014
AbstractSolar thermal power plants (STPP) are focused on reducing costs while increasing performance. In this context central receiver (CR) technology working with volumetric receiver shows a high potential to improve efficiencies by allowing higher operating temperatures. This technology requires the implementation of efficient thermal energy storage (
Avila-Marin, Antonio L.   +2 more
openaire   +3 more sources

Implementation of Quantum Key Distribution with Composable Security Against Coherent Attacks using Einstein-Podolsky-Rosen Entanglement [PDF]

open access: yes, 2015
Secret communication over public channels is one of the central pillars of a modern information society. Using quantum key distribution (QKD) this is achieved without relying on the hardness of mathematical problems which might be compromised by improved
Duhme, Jörg   +7 more
core   +4 more sources

A CMOS RF BeiDou-1 Transceiver for Regional Positioning and Short Message Service Applications

open access: yesIEEE Access, 2020
This paper presents a fully integrated CMOS radio-frequency (RF) transceiver for BeiDou-1, a radio determination satellite service system which can provide regional positioning and short message service.
Yong Wang   +3 more
doaj   +1 more source

Study on interleave-division multiple-access technology over complicated time-variant channels

open access: yes上海师范大学学报. 自然科学版, 2015
In this paper,the IDMA technology is studied in complicated time-variant multipath channels.A theoretical derivation of iterative process in the receiver which is suitable for WBAN transmission property will be given based on central-limit theorem.By the
ZHU Ya, ZHOU Xiaolin
doaj   +1 more source

Dynamic Investigation of a Solar-Driven Brayton Cycle with Supercritical CO2

open access: yesApplied System Innovation, 2023
The exploitation of solar irradiation is a critical weapon for facing the energy crisis and critical environmental problems. One of the most emerging solar technologies is the use of solar towers (or central receiver systems) coupled with high ...
Christos Sammoutos   +4 more
doaj   +1 more source

Thermal and mechanical stresses in bayonet tubes of solar central receivers working with molten salt and liquid sodium

open access: yesResults in Engineering, 2020
One of the most promising technologies for solar thermal power are solar power towers (SPTs), in which direct solar radiation is redirected by heliostats to a receiver located on top of a tower.
Rafael Pérez-Álvarez   +2 more
doaj   +1 more source

Dense suspension of solid particles as a new heat transfer fluid for concentrated solar thermal plants: on-sun proof of concept [PDF]

open access: yes, 2013
This paper demonstrates the capacity of dense suspensions of solid particles to transfer concentrated solar power from a tubular receiver to an energy conversion process by acting as a heat transfer fluid.
Ansart, Renaud   +7 more
core   +3 more sources

Performance Analysis of Relative GPS Positioning for Low-Cost Receiver-Equipped Agricultural Rovers

open access: yesSensors, 2023
Global navigation satellite systems (GNSSs) became an integral part of all aspects of our lives, whether for positioning, navigation, or timing services.
Gustavo S. Carvalho   +3 more
doaj   +1 more source

Wi-PoS : a low-cost, open source ultra-wideband (UWB) hardware platform with long range sub-GHz backbone [PDF]

open access: yes, 2019
Ultra-wideband (UWB) localization is one of the most promising approaches for indoor localization due to its accurate positioning capabilities, immunity against multipath fading, and excellent resilience against narrowband interference.
De Poorter, Eli   +7 more
core   +1 more source

Designing Robots for Care: Care Centered Value-Sensitive Design [PDF]

open access: yes, 2012
The prospective robots in healthcare intended to be included within the conclave of the nurse-patient relationship—what I refer to as care robots—require rigorous ethical reflection to ensure their design and introduction do not impede the promotion of ...
Wynsberghe, A. van
core   +4 more sources

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