Results 261 to 270 of about 4,724,573 (292)

Optical system employing a four-focus-off axis hololens used for quadrant point detection

SPIE Proceedings, 1990
This paper describes a new optical system which is composed of a telescope and a four-focus-offaxis hololens used for quadrant point detection. 1 .
Songcan Lai, Jingfang Zhang, Chunrong Ma
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Energy and economic analysis of a point-focus concentrating photovoltaic system when its installation site varies

Frontiers in Energy, 2020
The concentrating photovoltaic (CPV) systems are a promising technology to obtain clean energy. However, these systems are not equally convenient worldwide due to different climatic conditions. The main aim of this paper is to analyze energy and economic performances of a point-focus CPV system for a residential user when its installation site varies ...
Carlo Renno, Alessandro Perone
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An analysis of hotel loyalty program with a focus on the tiers and points system

2017 4th International Conference on Systems and Informatics (ICSAI), 2017
This paper explores the benefit of gamified sales promotion with a focus on the hotel loyalty program, which is the essential strategy for the hotel companies in contributing sales volume to its properties and commonly consists of two mechanics: tiers system and points system.
Long Zuo, Shuo Xiong, Hiroyuki Iida
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Optimization of Point Focus and Mirror Based Spectrum Splitting CPV Systems: Results from the Apollon Project

2011
26th European Photovoltaic Solar Energy Conference and Exhibition; 137 ...
Gianluca Timò, Alessandro Minuto, Paolo Morabito, Alessio Martinelli, Cristina Chemelli, Isabelle Sagnes, Roberto Jakomin, Gregoire Beaudoin, Bernd Schineller, Michael Heuken, Matthias Sturm, Maria Angela Butturi, ANTONINI, Andrea, Paolo Zurru, Michael Noack, Sara Padovani, Igor di Vora, Slava Borshchov, Robert Kenny, Tuomas Aitasalo, Francesco Roca, Giorgio Graditi, Carmine Cancro, Michele Pellegrino, Carlo Privato, Eduardo Medina, Keith Heasman, Mariska de Wild Scholten, Carol Olson, Francesco Aleo, Maria Luisa Lo Trovato, VINCENZI, Donato, GUIDI, Vincenzo, George E. Georghiou, Matthew Norton   +34 more
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Comparison of the Spherical Optics and Fresnel Lens Performance in a Point-Focus CPV System [PDF]

, 2022
The optical system is the component that more affects the performances of a Concentrating Photovoltaic (CPV) system. In this paper, a commonly used Fresnel lens and a less adopted spherical optics of the same diameter, are experimentally compared in a point-focus CPV system from an optical and an energy point of view.
Carlo Renno, Alessandro Perone, Valeria Pirone   +2 more
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Intelligent sensor systems and smart sensors: concepts, focus points and technology

1996
In this chapter we discuss the state-of-the-art and current trends in the design of intelligent low-cost high-performance sensor systems. In intelligent (sensor) systems the best of conventional ideas are upgraded and combined with good new ideas. Therefore, there is a continuous growth in the amount of cleverness embedded in the designs.
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Optical and Thermal Performance Predictions for a High Concentration Point Focus Photovoltaic System

2008
The optical and thermal behaviour of a high concentration point focus Fresnel lens based photovoltaic concentrator system with the potential for large scale power generation in regions with predominantly direct radiation has been investigated. A ray projection technique was used to evaluate the energy capture of the concentrator when located at Denver (
Tapas K Mallick, Philip C Eames
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The Effect of Concentrator Field Layout on the Performance of Point-Focus Distributed Receiver Systems

Journal of Solar Energy Engineering, 1984
The effect of concentrator field layout on the technical-economic performance of a point-focusing distributed receiver (PFDR) solar thermal power plant is presented. The plant design is based on the small community prototype system currently under development by Ford Aerospace for JPL/DOE; parabolic dish concentrators are employed and small heat ...
R. L. Pons, A. F. Dugan
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Three-Dimensional Point-Focus Spectral Splitting Solar Concentrator System

2014
Spectral splitting solar systems are emerging as alternative solutions to multi-junction solar cells for cost effective high efficiency photovoltaic applications. We have recently proposed a low cost single element splitting system based on a prismatic structure able to contemporary split the solar light into its spectral component and concentrate them.
Maragliano, Carlo, Zayan, Ahmed, Stefancich, Marco   +5 more
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Self-adjusting focus of attention by means of GP for improving a laser point detection system

Proceedings of the 15th annual conference on Genetic and evolutionary computation, 2013
This paper introduces the application of a new GP based Focus of Attention technique capable of improving the accuracy level when using a Laser Pointer as an interactive device. Laser Pointers have been previously employed in combination with environment control systems as interaction devices, allowing users to send orders to devices.
Eddie Clemente, Francisco Chávez, León Dozal, Francisco Fernández de Vega, Gustavo Olague   +4 more
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