Results 21 to 30 of about 1,179,244 (300)

Performance of a parabolic trough solar collector

Journal of Energy in Southern Africa, 2017
The performance of a South African parabolic trough solar collector (PTSC) module has been characterised using the ASHRAE 93-1986 standard. The collector is designed for component testing and development in a solar energy research programme.
M J Brooks, I Mills, T M Harms
doaj   +1 more source

Attojoule-efficient graphene optical modulators

Applied Optics, 2018
arXiv admin note: text overlap with arXiv:1502.04672 by other ...
Rubab Amin, Zhizhen Ma, Rishi Maiti, Sikandar Khan, Jacob B. Khurgin, Hamed Dalir, Volker J. Sorger   +6 more
openaire   +3 more sources

Energy Consumption Monitoring System Based on IoT for Residential Rooftops

Computation, 2023
This work aims to create a web-based real-time monitoring system for electrical energy consumption inside a specific residence. This electrical energy is generated from a micro-CPV system lying on the roof of this residence.
Sarah El Himer, Mariyam Ouaissa, Mariya Ouaissa, Moez Krichen, Mohannad Alswailim, Mutiq Almutiq   +5 more
doaj   +1 more source

Application of Machine Learning Techniques for Predicting Potential Vehicle-to-Pedestrian Collisions in Virtual Reality Scenarios

Applied Sciences, 2022
The definition of pedestrian behavior when crossing the street and facing potential collision situations is crucial for the design of new Autonomous Emergency Braking systems (AEB) in commercial vehicles. To this end, this article proposes the generation
Ángel Losada, Francisco Javier Páez, Francisco Luque, Luca Piovano   +3 more
doaj   +1 more source

Nonlinear optical interactions in silicon waveguides [PDF]

, 2017
The strong nonlinear response of silicon photonic nanowire waveguides allows for the integration of nonlinear optical functions on a chip. However, the detrimental nonlinear optical absorption in silicon at telecom wavelengths limits the efficiency of ...
Baets, Roel, Clemmen, Stéphane, Coen, S., Dave, Utsav Deepak, Gorza, S.P., Green, W.M. J., Ideguchi, T., Kuyken, Bart, Leo, François, Liu, X., Massar, S., Osgood, R. M., Roelkens, Günther, Safioui, J., Selvaraja, S.K., Van Campenhout, J., Van Laer, Raphaël, Verheyen, P., Zhao, Haolan   +18 more
core   +2 more sources

Effectiveness of the Autonomous Braking and Evasive Steering System OPREVU-AES in Simulated Vehicle-to-Pedestrian Collisions

Vehicles, 2023
This paper proposes a combined system (OPREVU-AES) that integrates optimized AEB and Automatic Emergency Steering (AES) to generate evasive maneuvers, and it provides an assessment of its effectiveness when compared to a commercial AEB system.
Ángel Losada, Francisco Javier Páez, Francisco Luque, Luca Piovano   +3 more
doaj   +1 more source

Strategy for Determining the Stochastic Distance Characteristics of the 2D Laser Scanner Z + F Profiler 9012A with Special Focus on the Close Range

Sensors, 2018
Kinematic laser scanning with moving platforms has been used for the acquisition of 3D point clouds of our environment for many years. A main application of these mobile systems is the acquisition of the infrastructure, e.g., the road surface and ...
Erik Heinz, Markus Mettenleiter, Heiner Kuhlmann, Christoph Holst   +3 more
doaj   +1 more source

Effect of the Orientation Schemes of the Energy Collection Element on the Optical Performance of a Parabolic Trough Concentrating Collector

Energies, 2018
While the circular shape is currently the proven optimum design of the energy collection element (ECE) of a parabolic trough collector, that is yet to be confirmed for parabolic trough concentrating collectors (PTCCs) like trough concentrating ...
Majedul Islam, Prasad Yarlagadda, Azharul Karim   +2 more
doaj   +1 more source

Efficient diffractive phase optics for electrons [PDF]

New Journal of Physics, 2014
Electron diffraction gratings can be used to imprint well-defined phase structure onto an electron beam. For example, diffraction gratings have been used to prepare electron beams with unique phase dislocations, such as electron vortex beams, which hold promise for the development of new imaging and spectroscopy techniques for the study of materials ...
Tyler R Harvey, Jordan S Pierce, Amit K Agrawal, Peter Ercius, Martin Linck, Benjamin J McMorran   +5 more
openaire   +2 more sources

Exceeding the Manley-Rowe quantum efficiency limit in an optically pumped THz amplifier [PDF]

, 2006
Using a microscopic theory based on the Maxwell-semiconductor Bloch equations, we investigate the possibility of an optically-assisted electrically-driven THz quantum cascade laser. Whereas in optical conversion schemes the power conversion efficiency is
Chow, Weng W., Waldmueller, Ines, Wanke, Michael C.   +2 more
core   +2 more sources