Results 81 to 90 of about 120,378 (265)

Soft, Degradable, and Magnetic Microcarriers for Encapsulation and Guided Transport of Drugs and 3D Spheroids

open access: yesAdvanced Materials, EarlyView.
This work presents soft, degradable hydrogel microcarriers that combine magnetic responsiveness with the ability to host multiple therapeutic and cellular components. Produced by droplet microfluidics, the carriers maintain structural integrity during manipulation, permit controlled breakdown under physiological conditions, and enable guided motion for
Xuan Peng   +18 more
wiley   +1 more source

Linear-Quadratic Mean Field Games in Hilbert Spaces

open access: yesSIAM Journal on Mathematical Analysis
This paper represents the first attempt to develop a theory for linear-quadratic mean field games in possibly infinite dimensional Hilbert spaces. As a starting point, we study the case, considered in most finite dimensional contributions on the topic, where the dependence on the distribution enters just in the objective functional through the mean ...
Salvatore Federico   +2 more
openaire   +4 more sources

Space‐Time Coding Conformal Metasurfaces for Multifrequency Beam Steering and Shaping

open access: yesAdvanced Materials, EarlyView.
Space‐time coding conformal metasurfaces enable dynamic wave control on curved surfaces by combining programmable spatial patterns with temporal modulation. This study shows that a single conformal aperture can independently manipulate multiple frequency components, achieving multifunctional beam shaping and steering, with implications for ...
Filippo Pepe   +8 more
wiley   +1 more source

Optimal inequalities for a Toader-type mean by quadratic and contraharmonic means

open access: yesJournal of Nonlinear Sciences and Applications, 2017
Summary: In this paper, we present the best possible parameters \(\alpha_i, \beta_i\) (\(i=1,2,3\)) and \(\alpha_4,\beta_4\in(1/2,1)\) such that the double inequalities \[\alpha_1Q(a,b)+(1-\alpha_1)C(a,b)
Ji, Zhengchao, Ding, Qing, Zhao, Tiehong
openaire   +2 more sources

The Event-Triggered Resilient Control of Discrete-Time Nonlinear Semi-Markov Jump Systems Based on Incremental Quadratic Constraints

open access: yesMathematics
This paper explores resilient control problems for discrete-time nonlinear semi-Markov jump systems characterized by incremental quadratic constraints.
Shuguang Liu, Yueyuan Zhang, Yuan Sun
doaj   +1 more source

On Certain Inequalities for Neuman-Sándor Mean

open access: yesAbstract and Applied Analysis, 2013
We present several new sharp bounds for Neuman-Sándor mean in terms of arithmetic, centroidal, quadratic, harmonic root square, and contraharmonic means.
Wei-Mao Qian, Yu-Ming Chu
doaj   +1 more source

Cornus Mas L. Seed‐Derived Biosorbent for Methylene Blue Removal: Surface Characterization and Biosorption Performance

open access: yesAdvanced Materials Interfaces, EarlyView.
Cornus mas L. seeds are transformed into a high‐performance biosorbent through chemical modification, effectively removing methylene blue from aqueous solutions. Comprehensive characterization and optimization reveal a maximum biosorption capacity of 71.71 mg g−1, establishing this sustainable, cost‐effective material as a promising solution for ...
Hakan Yıldız   +2 more
wiley   +1 more source

Modeling Stand Density Index for Sustainable Silviculture of Kayu Bawang (Azadirachta excelsa (Jack) Jacobs) on Community Forest in Bengkulu Province, Indonesia

open access: yesForest Science and Technology
Kayu Bawang (Azadirachta excelsa (Jack) Jacobs) is a fast-growing and economically valuable tree species widely cultivated in community-managed forests in Bengkulu Province, Indonesia.
Hengki Siahaan   +11 more
doaj   +1 more source

A Hybrid Computational Framework for PCF‐based SPR Sensor With Machine Learning and xAI

open access: yesAdvanced Materials Interfaces, EarlyView.
A photonic crystal fiber‐based surface plasmon resonance (SPR) sensor integrating rectangular air holes along with conventional circular air holes achieves exceptional wavelength sensitivity of 15,000 nm/RIU across a broad refractive index range of 1.31–1.39. Integrated machine learning with explainable AI (xAI) models achieves high prediction accuracy
Mahabur Rahman Fahim   +3 more
wiley   +1 more source

On power means of positive quadratic forms

open access: yesLinear Algebra and its Applications, 1984
AbstractSome power means of positive definite quadratic forms are closely related to the fundamental scalar functions of the matrix associated with the quadratic form. This relation can (among other things) be used to give new proofs of some of the classical matrix inequalities.
openaire   +1 more source

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