Results 111 to 120 of about 2,530,049 (324)

Second‐Harmonic Hyper‐Mie Optical Activity Enables Closed‐Loop Chiral Photochemistry

Advanced Materials, EarlyView.
Nonlinear chiral photochemistry is demonstrated in CdTe/CdO nanohelices, where circularly polarized infrared light both drives and tracks photo‐oxidation via second‐harmonic scattering. This closed‐loop process reveals real‐time structural evolution, including shell fracturing and core exposure, accompanied by a transition from hyper‐Mie to hyper ...
Hoyeon Choi, Kody Whisnant, Ben J. Olohan, E. Petronijevic, G. Dan Pantoș, Nicholas A. Kotov, Ventsislav K. Valev   +6 more
wiley   +1 more source

MAPS: A Mode-Aware Probabilistic Scheduling Framework for LPV-Based Adaptive Control

IEEE Access
This paper proposes Mode-Aware Probabilistic Scheduling (MAPS), a practical adaptive control framework tailored for dc motor systems experiencing varying friction.
Taehun Kim, Guntae Kim, Cheolmin Jeong, Chang Mook Kang   +3 more
doaj   +1 more source

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

Advanced 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, Lulu Song, Daryna Mruga, Veronika Bakhmat, Sergei Dzyadevych, Lin Guo, Shahrukh Shakeel, Rico Illing, Olha Bezsmertna, Xiaotao Wang, Nicholas R. Posselli, Sarthak Misra, Sandra Hauser, Jens Pietzsch, Klaus Kopka, Denys Makarov, Željko Janićijević, Xinne Zhao, Larysa Baraban   +18 more
wiley   +1 more source

A Survey of Interlayer Interaction Models for Graphene and Other 2D Materials

Advanced Materials Interfaces, EarlyView.
Van der Waals interactions arising from electronic polarization at atomically close interfaces generate corrugated interlayer energy landscapes that govern normal and tangential tractions. This review presents an overview of quantum, atomistic, analytical, and continuum modeling approaches, highlighting their roles across length scales in capturing ...
Gourav Yadav, Shakti S. Gupta, Roger A. Sauer   +2 more
wiley   +1 more source

Quadratic mappings of spheres

Linear Algebra and its Applications, 1979
AbstractIn this paper we obtain a basis-free method for determining the general form of quadratic maps over R between spheres. We show that all quadratic maps (over certain R-lattices) between spheres are Hopf maps, and that the classical Hopf fibrations, S2m−1→Sm, for m=2, 4, 8, are the unique nontrivial maps over Z, up to action by the orthogonal ...
openaire   +2 more sources

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

Advanced 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, Adem Necip, Arslan Yusuf Yüksel   +2 more
wiley   +1 more source

A class of transformations of a quadratic integral generating dynamical systems

Journal of Numerical Analysis and Approximation Theory, 2017
A class of transformation is investigated which maps a quadratic integral back to its original form but under a redefinition of free parameters. When this process is iterated, a dynamical system is generated in the form of recursive sequences which ...
Paul Bracken
doaj   +2 more sources

Joint Image Compression and Encryption Using IWT with SPIHT, Kd-Tree and Chaotic Maps

Applied Sciences, 2018
Confidentiality and efficient bandwidth utilization require a combination of compression and encryption of digital images. In this paper, a new method for joint image compression and encryption based on set partitioning in hierarchical trees (SPIHT) with
Nasrullah, Jun Sang, Muhammad Azeem Akbar, Bin Cai, Hong Xiang, Haibo Hu   +5 more
doaj   +1 more source

Van der Waals Chromium Telluride Thin Films Prepared by Hybrid Pulsed Laser Deposition With Tunable Magnetism

Advanced Materials Interfaces, EarlyView.
Epitaxial Cr(1+δ)Te2 thin films were synthesized via hybrid Pulsed Laser Deposition (PLD) that combined Molecular Beam Epitaxy (MBE) techniques with PLD. Control of the Cr intercalation, δ, enabled modulation of magnetic anisotropy, Curie temperature, and transport properties.
Pia Henning, Anna Tschesche, Tobias Meyer, Jasnamol Palakkal   +3 more
wiley   +1 more source

Examining mathematics teachers’ perceptions of concept mapping to facilitate meaningful learning

Infinity
Concept maps enhance the quality of learning, as they can promote meaningful learning. However, teachers rarely integrate concept maps into their instructional practices.
Rahmah Johar, Cut Khairunnisak, Cut Morina Zubainur, Abdul Halim Abdullah, Liza Indriyani   +4 more
doaj   +1 more source