Results 51 to 60 of about 33,748 (301)

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

open access: yesAdvanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang   +12 more
wiley   +1 more source

Application of generalized sharpening technique for two-stage comb decimator filter design [PDF]

open access: yes, 2013
This paper introduces the generalized sharpening technique to improve the magnitude characteristics of comb decimation filter in passband as well in the folding bands. To this end we design two-stage comb filter.
GORDANA JOVANOVIC DOLECEK   +1 more
core  

UPSNet: Unsupervised Pan-Sharpening Network With Registration Learning Between Panchromatic and Multi-Spectral Images

open access: yesIEEE Access, 2020
Recent advances in deep learning have shown impressive performances for pan-sharpening. Pan-sharpening is the task of enhancing the spatial resolution of a multi-spectral (MS) image by exploiting the high-frequency information of its corresponding ...
Soomin Seo   +6 more
doaj   +1 more source

Electrostatic Superlattices Beyond 1:1 Stoichiometry

open access: yesAdvanced Functional Materials, EarlyView.
Polymer‐mediated charge regulation drives two hierarchical routes to higher‐stoichiometry nanoparticle superlattices. Tuning the polymer's molecular weight promotes progressive interstitial filling, transforming ZnS into the fully occupied CaF2${\rm CaF}_2$ lattice. Exchanging polymer assignment between large and small nanoparticles instead breaks CsCl
Binay P. Nayak   +7 more
wiley   +1 more source

Data-driven Automatic Edge Sharpening [PDF]

open access: yes, 2009
Sharpening is a powerful image transformation because sharp edges can bring out image details. Sharpness is achieved by increasing local contrast and reducing edge widths. We present a method that enhances sharpness of images and thereby their perceptual
Nam, Myra
core  

Spectral Sharpening of Color Sensors: Diagonal Color Constancy and Beyond

open access: yesSensors, 2014
It has now been 20 years since the seminal work by Finlayson et al. on the use of spectral sharpening of sensors to achieve diagonal color constancy. Spectral sharpening is still used today by numerous researchers for different goals unrelated to the ...
Javier Vazquez-Corral   +1 more
doaj   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang   +7 more
wiley   +1 more source

Integrated Fusion Network for Hyperspectral, Multispectral and Panchromatic Data Fusion

open access: yesApplied Sciences
The fusion of traditional HSI mainly involves the fusion of HSI with MSI or PAN. Nevertheless, the combination of the former is constrained by the inadequate spatial resolution of MSI, and therefore the enhancement of the spatial resolution of HSI is ...
Jinyin Pan   +6 more
doaj   +1 more source

Automation of Pan-Sharpening Methods for Pléiades Images Using GIS Basic Functions

open access: yesRemote Sensing, 2021
Pan-sharpening methods allow the transfer of higher resolution panchromatic images to multispectral ones concerning the same scene. Different approaches are available in the literature, and only a part of these approaches is included in remote sensing ...
Emanuele Alcaras   +2 more
doaj   +1 more source

Sharpened Bonferroni Inequalities

open access: yesJournal of Combinatorial Theory, Series B, 1993
In this paper a \(k\)-uniform hypergraph \(H\) with vertex set \(S\) is said to be sparse if for each \(I\subseteq S\), the induced partial hypergraph \(H_ I=(I,\{e\in E(H)| e\subseteq I\})\) has at most \({| I|- 1\choose k-1}\) edges. The reviewer sharpened Bonferroni inequalities by including an additional term determined by a \(k\)-hypertree \(H ...
openaire   +1 more source

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