Results 81 to 90 of about 1,439 (263)

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

Pointwise estimates for polynomial approximation on the semiaxis

open access: yes, 2010
We state some pointwise estimates for the rate of weighted approximation of a continuous function on the semiaxis by polynomials. Furthermore, we derive matching converse results and estimates involving the derivatives of the approximating polynomials ...
Woula Themistoclakis   +4 more
core   +1 more source

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

Multimodal Soft Surgical Robots Enabled by Eco‐Degradable, Sterilizable Polymers and Transient Electronics

open access: yesAdvanced Functional Materials, EarlyView.
A compostable PGS soft surgical robot with interchangeable modules integrates transient Mo tactile and Si thermal sensors for dual feedback. The device preserves its function after clinical‐grade sterilization, demonstrates stable actuation and cardiac tissue grasping with real‐time in vivo pulsatile monitoring, and biodegrades post‐use with soil‐safe, 
Minseong Chae   +27 more
wiley   +1 more source

Approximating Properties of Generalized Dunkl Analogue of Szasz Operators

open access: yes, 2016
In this paper we present a generalization of Sz´asz operators using the Dunkl generalization of the exponential function. We investigate approximating properties for these operators using the Korovkin approximation theorem and the weighted Korovkin-type ...
Mursaleen, M.   +2 more
core   +1 more source

Fast Charge–Discharge of LiNi0.9Co0.05Mn0.05 Enabled by a Bikitaite‐Infused Separator for Li Metal Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A bikitaite‐infused cellulose separator is introduced for Li metal batteries, leveraging bikitaite zeolite's ion‐conductive properties to regulate Li+‐ion flux and suppress dendrite growth. The membrane design ensures uniform Li plating, enhanced electrolyte wettability, and robust thermal/mechanical stability, delivering stable performance and low ...
Isheunesu Phiri   +2 more
wiley   +1 more source

Some linear positive operators in weighted spaces

open access: yes, 2012
Bu tez dört bölümden oluşmaktadır. Birinci bölüm giriş kısmına ayrılmıştır. İkinci bölümde lineer pozitif operatörler ve q - Analiz ile ilgili genel bilgiler verilmiştir. Üçüncü bölümde q - Meyer-König ve Zeller operatörlerinin bazı yaklaşım özellikleri,
Adıgüzel, Hakan
core  

Weighted -Inequalities for the Dunkl Transform

open access: yes, 2020
We give, for 1 < ≤ 2, weighted -inequalities for the Dunkl transform, using, respectively, the modulus of continuity of radial functions and the Dunkl convolution in the general case. As application, we obtain, in particular, the integrability of this
Chokri Abdelkefi, Faten Rached
core  

Weighted approximation by the family of generalized Sampling Durrmeyer operators

open access: yes, 2022
Bu tez çalışması beş bölümden oluşmaktadır. Birinci bölümde yaklaşım teorisi ve bunun önemli bir dalı olan sampling teorisi üzerine literatür hakkında ön bilgiler verilmiştir.
Parlak, Merve
core  

Approximation properties of a modified Gauss–Weierstrass singular integral in a weighted space

open access: yesJournal of Inequalities and Applications
Singular integral operators play an important role in approximation theory and harmonic analysis. In this paper, we consider a weighted Lebesgue space L p , w $L^{p,w}$ , define a modified Gauss–Weierstrass singular integral on it, and study direct and ...
Abhay Pratap Singh, Uaday Singh
doaj   +1 more source

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