Results 71 to 80 of about 1,379 (241)

Exploring the Tribological Properties of 3D Printed Polymer Composites: An Experimental Study

Polymer Composites, EarlyView.
Tribological pin‐on‐disc testing of FDM‐manufactured pins. Pins made from PLA, TPU, bronze‐filled PLA (BRO), and their combinations were tested against a SAE 1020 steel disc to evaluate friction, wear, and surface morphology. ABSTRACT In recent years, additive manufacturing, especially 3D printing, has been gaining more space in the production of parts
G. Lasch, G. G. Sostizzo, G. S. Gehlen, M. T. Birosz, M. Andó, R. H. S. Souza, A. A. Rodrigues, J. C. Poletto, L. Y. Barros, N. F. Ferreira, P. D. Neis   +10 more
wiley   +1 more source

Cationic‐Hydrophilic Di‐Block Copolymers: Surface‐Shielded Vectors for Gene Delivery

Journal of Polymer Science, Volume 63, Issue 6, Page 1419-1432, 15 March 2025.
This study develops synthetic polycationic di‐block carriers for nucleic acid (NA) delivery in gene therapy. Consisting of a cationic block and a hydrophilic block, these carriers efficiently form complexes with NAs and shield them with a protective bioinert layer, enhancing stability during circulation in the bloodstream while reducing undesirable ...
Eliška Hrdá, Ladislav Androvič, Marcela Filipová, Michal Pechar, Richard Laga   +4 more
wiley   +1 more source

Vegetable Oil–Mediated Transesterification as a Green Route to Tune Ethyl Cellulose Properties

Journal of Polymer Science, EarlyView.
An environmentally conscious strategy for augmenting the hydrophobicity of ethyl cellulose polymer via a transesterification reaction using renewable vegetable oil. ABSTRACT The inherent hydrophilicity of biopolymers presents significant limitations to their implementation, particularly in coating and packaging applications.
Athira Narayanan, Valeria D'Errico, Marco Friuli, Sonia Bagheri, Claudio Mele, Alessandro Sannino, Christian Demitri, Leonardo Lamanna   +7 more
wiley   +1 more source

A Review of Metal–Organic Framework (MOF) Based Active Food Packaging: Materials Selection, Cellulose Matrices Current Advances, Synthesis and Characterizations

Packaging Technology and Science, EarlyView.
Active packaging offers an effective approach to extending food shelf life. This review summarizes the past decade of progress in metal‐organic framework (MOF)‐based active food packaging, highlighting material selection, characterization, challenges, and future prospects.
Belladini Lovely, Young‐Teck Kim, Haibo Huang, Novitri Hastuti, Su Jung Hong   +4 more
wiley   +1 more source

The role of identification in data‐driven policy iteration: A system theoretic study

International Journal of Robust and Nonlinear Control, EarlyView.
Abstract The goal of this article is to study fundamental mechanisms behind so‐called indirect and direct data‐driven control for unknown systems. Specifically, we consider policy iteration applied to the linear quadratic regulator problem. Two iterative procedures, where data collected from the system are repeatedly used to compute new estimates of ...
Bowen Song, Andrea Iannelli
wiley   +1 more source

Effective Bounds for Restricted $3$-Arithmetic Progressions in $\mathbb{F}_p^n$

Discrete Analysis
Effective bounds for restricted $3$-arithmetic progressions in $\mathbb{F}_p^n$, Discrete Analysis 2024:16, 22 pp. Roth's theorem on arithmetic progressions, proved in 1953, states that for every $\delta>0$ and every $k\in\mathbb N$ there exists $N\in ...
Amey Bhangale, Subhash Khot, Dor Minzer
doaj   +1 more source

Sylvester-Gallai type theorems for quadratic polynomials

Discrete Analysis, 2020
Sylvester-Gallai type theorems for quadratic polynomials, Discrete Analysis 2020:13, 34 pp. The [Sylvester-Gallai theorem](https://en.wikipedia.org/wiki/Sylvester%E2%80%93Gallai_theorem) asserts that given $n$ points in a plane that are not contained in
Amir Shpilka
doaj   +1 more source

Arithmetic groups and the affine 𝐸₈ Dynkin diagram

, 2009
29 pages; contribution to proceedings of the conference "Groups and Symmetries: From the Neolithic Scots to John McKay"; font size changed to ...
openaire   +2 more sources

Recycled Thermocol Nanofibers Based Smart Triboelectric Nanogenerators for AI‐Assisted Switching

Small, EarlyView.
Waste expanded polystyrene is recycled into electrospun nanofibers for a sustainable triboelectric nanogenerator. The device exhibits enhanced surface morphology, improved triboelectric output, and multifunctional applications including energy harvesting, self‐powered sensing, and intelligent human‐machine interfaces using lightweight, flexible, and ...
Shubham V. Patil, Mahesh Y. Chougale, Thomas Cox, Sourabh Ghode, Abhishek Kulkarni, Parth Pandit, Niroshan Manoharan, Ajay Pandey, Jinho Bae, Deepak Dubal   +9 more
wiley   +1 more source

Updated Chorotypes of Terrestrial Vertebrates Shed New Light on Zoogeographical Regions in China

Integrative Zoology, EarlyView.
Chorotype represents a fundamental concept for identifying groups of species that share similar distribution patterns. However, the last comprehensive revision of animal chorotypes in China was performed more than a decade ago. Here, we update the chorotype classifications for 1040 species and propose an updated zoogeographical regionalization scheme ...
Baoming Zhang, Minghui Zhou, Zhipeng Xie, Ludan Zhang, Haoting Duan, Jiehua Yu, Jiekun He   +6 more
wiley   +1 more source