Results 101 to 110 of about 660,831 (348)

Mitigation of mismatch losses in solar PV systems: a hybrid L-shaped propagated array configuration approach

Frontiers in Energy Research
There has been a global expansion of solar electricity during the past decades. Solar photovoltaic (PV) electricity generation is not only simple but also environmentally benign and cost-effective.
Belqasem Aljafari, S. Devakirubakaran, Praveen Kumar Balachandran, Sudhakar Babu Thanikanti   +3 more
doaj   +1 more source

DOA Estimation based on the Optimized Coprime Array Configuration

IEEE Access, 2019
In this paper, a direction-of-arrival (DOA) estimation based on the optimized coprime array (OpCA) configuration is proposed. The proposed array, utilizing the two constituting subarrays N-array and M-array of the coprime array, where their sensors are N
Ahmed Mohammed Ahmed Shaalan, Xiangyu Yu
doaj   +1 more source

On stress analysis of a crack-layer [PDF]

This work considers the problem of elastic interaction of a macrocrack with an array of microcracks in the vicinity of the macrocrack tip. Using the double layer potential techniques, the solution to the problem within the framework of the plane problem ...
Chudnovsky, A., Dolgopolsky, A., Kachanov, M.   +2 more
core   +1 more source

Closed Strings as Imaginary D-branes

, 2003
Sen has recently drawn attention to an exact time-dependent Boundary Conformal Field Theory with the space-time interpretation of brane creation and annihilation. An interesting limit of this BCFT is formally equivalent to an array of D-branes located in
Aref'eva, Callan, Chen, Choptuik, Coleman, Davide Gaiotto, Di Vecchia, Drukker, Gaiotto, Green, Gregory, Gubser, Gutperle, Gutperle, Hashimoto, Hashimoto, Horowitz, Ishida, Klebanov, Kluson, Kol, Lambert, Larsen, Leonardo Rastelli, Maloney, Minahan, Moeller, Mukhopadhyay, Nissan Itzhaki, Okuda, Polchinski, Polchinski, Rastelli, Rey, Sen, Sen, Sen, Sen, Sen, Shapiro, Shapiro, Shatashvili, Strominger, Sugimoto, Witten, Zwiebach, Zwiebach   +46 more
core   +3 more sources

Optimized Configuration of Mismatched Photovoltaic Arrays

IEEE Journal of Photovoltaics, 2016
When the panels in a photovoltaic (PV) array are subjected to a nonuniform irradiance level, some bypass diodes may turn on , and the overall power production might be affected significantly. An increase of the power delivered by the whole array might be obtained by means of its electrical reconfiguration, that is, the change of the series–parallel ...
Orozco Gutierrez, M. L., SPAGNUOLO, Giovanni, Ramirez Scarpetta, J. M., PETRONE, GIOVANNI, Ramos Paja, C. A.   +4 more
openaire   +2 more sources

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Imaging Simulations of the Sunyaev-Zel'dovich Effect for ALMA

, 2012
We present imaging simulations of the Sunyaev-Zel'dovich effect of galaxy clusters for the Atacama Large Millimeter/submillimeter Array (ALMA) including the Atacama Compact Array (ACA).
Akahori, T., Iono, D., Kawabe, R., Kitayama, T., Kohno, K., Komatsu, E., Matsuo, H., Suto, Y., Takakuwa, S., Takizawa, M., Tsutsumi, T., Yamada, K., Yoshikawa, K.   +12 more
core   +1 more source

Aperture Array Configurations for SKA1 Core

ArXiv.org, 2014
This memo considers some aspects of the configuration of the SKA1 Low Frequency Aperture Array, both at the element and station level. At the element level I propose a possible scenario for forming station beams where elements are shared between stations and apodisation is implemented, with the aim of improving filling factor, overall sensitivity and ...
openaire   +3 more sources

Power enhanced solar PV array configuration based on calcudoku puzzle pattern for partial shaded PV system. [PDF]

Heliyon, 2023
Aljafari B, S D, C B, Balachandran PK, Babu TS.   +4 more
europepmc   +1 more source

Nanoindentation Criteria for Combinatorial Thin Film Libraries

Advanced Engineering Materials, EarlyView.
Thin‐film material libraries are compositional spreads used for screening composition‐structure‐property relationships. Nanoindentation is often used to characterize mechanical behavior across these systems, however variations in methodology are widespread.
Andre Bohn, Adie Alwen, Andrea M. Hodge
wiley   +1 more source