Results 21 to 30 of about 178 (115)

Data Combining Schemes for a Detector Array Receiver in Free-Space Optical Communications

IEEE Open Journal of the Communications Society, 2022
An array of detectors is widely used in deep space optical communications for both fine beam tracking and symbol detection. In this paper, we have analyzed and compared the performance of different combining schemes—such as equal gain combiner ...
Ming-Cheng Tsai, Muhammad Salman Bashir, Mohamed-Slim Alouini   +2 more
doaj   +1 more source

Deep learning enabled robust wavefront sensing for active beam smoothing with a continuous phase modulator

High Power Laser Science and Engineering
In laser systems requiring a flat-top distribution of beam intensity, beam smoothing is a critical technology for enhancing laser energy deposition onto the focal spot.
Yamin Zheng, Yifan Zhang, Liquan Guo, Pei Li, Zichao Wang, Yongchen Zhuang, Shibing Lin, Qiao Xue, Deen Wang, Lei Huang   +9 more
doaj   +1 more source

Influence of Shear Reinforcement on Reinforced Concrete Continuous Deep Beams [PDF]

ACI Structural Journal, 2007
This paper presents results from tests of 24 two-span reinforced concrete deep beams that were performed to study the influence of shear reinforcement on structural behavior. The main variables studied were concrete strength, shear span-to-overall depth ratio (a/h) and the amount and configuration of shear reinforcement.
Yang, Keun-Hyeok, Chung, H-S., Ashour, Ashraf   +2 more
openaire   +3 more sources

Continuous Deep Beams Behavior Under Static Loads: A Review Study

IOP Conference Series: Earth and Environmental Science, 2022
Abstract Few studies discussed the continuous deep beams CDB behaviour in spite of its great importance in building constructions due to the usual use in bridges and tall buildings as a load distributer. The behaviour of CDB shows a different behaviour when comparing with the simply supported one, so the expected behaviour of SDB does ...
Ola Mazen Makki, Hayder M K Al-Mutairee
openaire   +1 more source

Investigation of the influence of pulse parameters on the resulting weld seam quality in pulsed electron beam welding of AW 6061

Journal of Advanced Joining Processes
Utilizing pulsed lasers in favor of a continuous wave in laser beam welding is a well-established method to achieve higher process efficiency and reduce heat input into the workpiece, which is especially useful for thin-walled workpieces (Steen, 2005 ...
M. Troise, T. Krichel, S. Olschok, U. Reisgen   +3 more
doaj   +1 more source

The 6 GeV TMD Program at Jefferson Lab

EPJ Web of Conferences, 2015
The study of the transverse momentum dependent parton distributions (TMDs) of the nucleon in semi-inclusive deep-inelastic scattering (SIDIS) has emerged as one of the major physics motivations driving the experimental program using the upgraded 11 GeV ...
Puckett Andrew
doaj   +1 more source

Controlling spatiotemporal nonlinearities in multimode fibers with deep neural networks

APL Photonics, 2020
Spatiotemporal nonlinear interactions in multimode fibers are of interest for beam shaping and frequency conversion by exploiting the nonlinear interaction of different pump modes from quasi-continuous wave to ultrashort pulses centered around visible to
U. Teğin, B. Rahmani, E. Kakkava, N. Borhani, C. Moser, D. Psaltis   +5 more
doaj   +1 more source

Mechanical State Model of Multispan Continuous Deep Beam under Concentrated Load [PDF]

Mathematical Problems in Engineering, 2013
Summary: In the present study, the mechanical model of the multispan continuous deep beam under concentrated load was established on the state space theory, and with the model, the two-span continuous deep beam was calculated. And the calculation results are consistent with ANSYS results, which show that the model without the plane section assumption ...
Li, Chun-Liang, Zhang, Dong-Miao
openaire   +2 more sources

ANN AND STATISTICAL MODELLING TO PREDICT THE DEFLECTION OF CONTINUOUS REINFORCED CONCRETE DEEP BEAMS

Diyala Journal of Engineering Sciences, 2015
This comparative study investigates the adoption of artificial neural networks and statistical modelling in the prediction of the deflection under ultimate strength of continuous reinforced concrete deep beams.
Wissam D. Salman
doaj  

Loading Capacity Prediction of Rubberized Reinforced Concrete Continuous Deep Beams

IOP Conference Series: Materials Science and Engineering, 2021
Abstract Results of fourteen two-span continuous concrete deep beams were presented and discussed in this research. One sample was designed as a reference to be an ordinary reinforced concrete beam (ORC) while thirteen samples were made of rubberized concrete (RRC). The investigated parameters were the shear span/overall depth ratio (a/h)
Ali Abdulameer Kadhim, Hayder Mohammed Kadhim   +1 more
openaire   +1 more source