Results 11 to 20 of about 430,234 (233)

Feasibility study of a new concept of solar external receiver: Variable velocity receiver [PDF]

Applied Thermal Engineering, 2018
The deployment of new solar power tower plants mainly depends on becoming cost-competitive with traditional forms of electricity generation. The solar field represents around 40% of the solar power tower investment cost, thus the cost reduction of such subsystems is mandatory to achieve that goal.
Rodríguez Sánchez, María de los Reyes, Sánchez González, Alberto, Santana Santana, Domingo José   +2 more
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Performance assessment of a secondary concentrator for solar tower external receivers [PDF]

AIP Conference Proceedings, 2019
In the EU-project RAISELIFE, a secondary concentrator for Solar Tower systems has been developed conceptually, which is discussed techno-economically herein. Based on a detailed three-level simulation methodology (optical assessment of radiation distribution on receiver surfaces, thermal FEM-simulation of receiver efficiency and transient system ...
Peter Schöttl, Theda Zoschke, Cathy Frantz, Yoel Gilon, Anna Heimsath, Thomas Fluri   +5 more
openalex   +3 more sources

An external calibration system for DBF receiver arrays at Ka-band

, 2019
In this thesis an online calibration procedure with on-board probes for DBF receiver systems is developed. The so-called external concept is developed not only for calibration of only channel deviations but also extended for joint calibration of channel deviations and mutual coupling.
M. Nhat Pham
openalex   +3 more sources

Natural convection heat transfer from an external receiver

, 1979
Dennis L. Siebers
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Thermal Analysis of a Solar External Receiver Tube with a Novel Component of Guide Vanes

Energies, 2021
The heat transfer performance of a solar external receiver tube with guide vanes was numerically studied under non-uniform heat flux conditions. Models of the smooth tube and the tube with guide vanes were built.
Zecan Tu, Daniela Piccioni Koch, Nenad Sarunac, Martin Frank, Junkui Mao   +4 more
doaj   +1 more source

Variable velocity in solar external receivers [PDF]

AIP Conference Proceedings, 2017
One of the major problems in solar external receivers is tube overheating, which accelerates the risk of receiver failure. It can be solved implementing receivers with high number of panels. However, it exponentially increases the pressure drop in the receiver and the parasitic power consumption of the Solar Power Tower (SPT), reducing the global ...
M. R. Rodríguez-Sánchez, A. Sánchez-González, A. Acosta-Iborra, D. Santana   +3 more
openaire   +1 more source

Convolution Neural Network Algorithm for Shockable Arrhythmia Classification Within a Digitally Connected Automated External Defibrillator

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023
Background Diagnosis of shockable rhythms leading to defibrillation remains integral to improving out‐of‐hospital cardiac arrest outcomes. New machine learning techniques have emerged to diagnose arrhythmias on ECGs. In out‐of‐hospital cardiac arrest, an
Christine P. Shen, Benjamin C. Freed, David P. Walter, James C. Perry, Amr F. Barakat, Ahmad Ramy A. Elashery, Kevin S. Shah, Shelby Kutty, Michael McGillion, Fu Siong Ng, Rola Khedraki, Keshav R. Nayak, John D. Rogers, Sanjeev P. Bhavnani   +13 more
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Numerical model of solar external receiver tubes: Influence of mechanical boundary conditions and temperature variation in thermoelastic stresses

Solar Energy, 2018
A. Montoya, M.R. Rodríguez-Sánchez, J. López-Puente, D. Santana   +3 more
openalex   +4 more sources

Positioning Accuracy Comparison of GNSS Receivers Used for Mapping and Guidance of Agricultural Machines

Agronomy, 2020
Global Navigation Satellite Systems (GNSS) allow the determination of the 3D position of a point on the Earth’s surface by measuring the distance from the receiver antenna to the orbital position of at least four satellites.
Pietro Catania, Antonio Comparetti, Pierluigi Febo, Giuseppe Morello, Santo Orlando, Eliseo Roma, Mariangela Vallone   +6 more
doaj   +1 more source

Development and comparison of 1-year survival models in patients with primary bone sarcomas: External validation of a Bayesian belief network model and creation and external validation of a new gradient boosting machine model

SAGE Open Medicine, 2022
Background: Bone sarcomas often present late with advanced stage at diagnosis and an according, varying short-term survival. In 2016, Nandra et al. generated a Bayesian belief network model for 1-year survival in patients with bone sarcomas.
Christina E Holm, Clare F Grazal, Mathias Raedkjaer, Thomas Baad-Hansen, Rajpal Nandra, Robert Grimer, Jonathan A Forsberg, Michael Moerk Petersen, Michala Skovlund Soerensen   +8 more
doaj   +1 more source