Results 21 to 30 of about 13,966 (122)

The Entropy Gain of Linear Systems and Some of Its Implications

open access: yesEntropy, 2021
We study the increase in per-sample differential entropy rate of random sequences and processes after being passed through a non minimum-phase (NMP) discrete-time, linear time-invariant (LTI) filter G.
Milan S. Derpich   +2 more
doaj   +1 more source

Quasi-Uniform Density Non-Solid Infill Strategy for Axisymmetric Non-Planar Additive Manufacturing

open access: yesApplied Sciences
Non-solid infill generation in Non-Planar Additive Manufacturing (NPAM) is still an open problem. This is due to mathematical complexities from curvature distortion, as well as bridging limitations inherent in some NPAM processes.
Alvaro Guzman-Bautista   +6 more
doaj   +1 more source

A Robust Watermarking Scheme in YCbCr Color Space Based on Channel Coding

open access: yesIEEE Access, 2019
The rapid development of big data and cloud computing technologies greatly accelerate the spreading and utilization of images and videos. The copyright protection for images and videos is becoming increasingly serious.
Yun Tan   +5 more
doaj   +1 more source

Development of a High-Density Genetic Map for Muscadine Grape Using a Mapping Population from Selfing of the Perfect-Flowered Vine ‘Dixie’

open access: yesPlants, 2022
Intraspecific diversity of the immune grape Muscadinia rotundifolia Michaux. can serve as a rich source of valuable resistance loci to the most widespread pathogens and pests of grapevine.
Kirill Lytkin   +13 more
doaj   +1 more source

The Influence of Image Processing and Layer-to-Background Contrast on the Reliability of Flatbed Scanner-Based Characterisation of Additively Manufactured Layer Contours

open access: yesApplied Sciences, 2020
Flatbed scanners (FBSs) provide non-contact scanning capabilities that could be used for the on-machine verification of layer contours in additive manufacturing (AM) processes. Layer-wise contour deviation assessment could be critical for dimensional and
David Blanco   +4 more
doaj   +1 more source

Data-driven parameter optimization for bead geometry in wire arc additive manufacturing of 17-4 PH stainless steel

open access: yesJournal of Advanced Joining Processes
Due to its high strength, corrosion resistance, and toughness, 17-4 Precipitation Hardening (PH) stainless steel is widely used in aerospace, petrochemical, and marine industries. Additive manufacturing (AM) technologies enable the fabrication of complex
Muhammad Irfan   +6 more
doaj   +1 more source

AscentAM: A Software Tool for the Thermo-Mechanical Process Simulation of Form Deviations and Residual Stresses in Powder Bed Fusion of Metals Using a Laser Beam

open access: yesModelling
Due to the tool-less fabrication of parts and the high degree of geometric design freedom, additive manufacturing is experiencing increasing relevance for various industrial applications. In particular, the powder bed fusion of metals using a laser beam (
Dominik Goetz   +5 more
doaj   +1 more source

EFFECT OF MONOSODIUM GLUTAMATE ON THE POST-NATAL DEVELOPMENT OF THE RETINA OF ALBINO RAT [PDF]

open access: yesAssiut Veterinary Medical Journal, 2005
SUMMARY   The retina is the photoreceptor organ and is divided into ten layers which contain the neuronal elements (photoreceptor, bipolar, and ganglion cells). Monosodium glutamate is a widely used food additive as it enters in the preparation of many
HALA ZEIN EL-ABDEIN MOHAMED   +3 more
doaj   +1 more source

In-Service BER Based Estimation of OFDM PAPR and CFO-induced Peak Phase Deviation

open access: yesJournal of Communications Software and Systems, 2019
High Peak-to-Average Power Ratio (PAPR) of the transmitted OFDM signal is a well-known major drawback of the Orthogonal Frequency-Division Multiplexing (OFDM), so the High-Power Amplifier (HPA) is therefore necessary to operate in its linear region, i.e.
Adriana Lipovac, Ante Mihaljevic
doaj  

Stress-Based Optimization of Components and Supports for Sinter-Based Additive Manufacturing

open access: yesApplied Sciences
Sinter-based additive manufacturing (SBAM) processes, such as Cold Metal Fusion (CMF), combine the geometric freedom of additive manufacturing with the scalability of powder metallurgy, but part distortion and collapse during debinding and sintering ...
David Stachg   +2 more
doaj   +1 more source

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