Results 241 to 250 of about 68,645 (309)

Extending the hyper‐logistic model to the random setting: New theoretical results with real‐world applications

Mathematical Methods in the Applied Sciences, EarlyView.
We develop a full randomization of the classical hyper‐logistic growth model by obtaining closed‐form expressions for relevant quantities of interest, such as the first probability density function of its solution, the time until a given fixed population is reached, and the population at the inflection point.
Juan Carlos Cortés, Ana Navarro‐Quiles, Sorina Madalina Sferle   +2 more
wiley   +1 more source

Microstructure and Properties of Sm₂O₃ Micro-Dispersed Tungsten-Based Alloy and Its Sintering Evolution. [PDF]

Materials (Basel)
Ye S, Wang P, Cui Z, Zhang N, Wang Y, Huang Z.   +5 more
europepmc   +1 more source

Overcoming Challenges in 3D Printing of Polyolefins and Their Composites: A Review on Strategies for Improved Printability and Performance

Polymer Engineering &Science, EarlyView.
This review integrates the molecular fundamentals, key challenges, and mitigation strategies in polyolefin 3D printing, focusing on shrinkage, warpage, and adhesion control. It highlights material design approaches using recycled polyolefins and functional fillers to improve printability, mechanical properties, and sustainability in additive ...
Malik Hassan, Philip McMorran, Marwan Eid, Julia Blair, Amar K. Mohanty, Manjusri Misra   +5 more
wiley   +1 more source

The Microstructure and Properties of Hard Anodic Oxide Coatings on 5754 Aluminium Alloy Modified with Al₂O₃, PTFE and CaCO₃ Nanoparticles. [PDF]

Materials (Basel)
Kozik A, Nowak M, Limanówka K, Góral A.   +3 more
europepmc   +1 more source

Layer by layer nanocoating of chlorhexidine-loaded micelles on polymethyl methacrylate denture base. [PDF]

BMC Oral Health
Luanareesatit P, Nasongkla N, Anunmana C, Eiampongpaiboon T.   +3 more
europepmc   +1 more source

Surface Topography of Hardened Stainless Steel in Dry Finish Turning Using CBN and Cemented Carbide Inserts. [PDF]

Materials (Basel)
Leksycki K, Feldshtein E, Pawłowski J.
europepmc   +1 more source

Silver‐Alloyed Wide‐Bandgap (Ag,Cu)(In,Ga)S2 Thin‐Film Solar Cells With 15.5% Efficiency

Progress in Photovoltaics: Research and Applications, EarlyView.
This study reports improvements in compositional homogeneity, microstructure, enhanced radiative recombination, and extended carrier lifetime of CIGS absorber via Ag incorporation. The optimal Ag‐alloyed CIGS solar cells achieve 15.5% PCE and 948 mV VOC, competing with the VOC of the Ag‐free reference sample from the same batch.
Yucheng Hu, Ece Washbrook, Arivazhagan Valluvar Oli, Andrea Griesi, Yurii P. Ivanov, Mariam Pelling, Simon M. Fairclough, Kulwinder Kaur, Michele Melchiorre, Adam Hultqvist, Tobias Törndahl, Wolfram Hempel, Wolfram Witte, Giorgio Divitini, Susanne Siebentritt, Rachel A. Oliver, Gunnar Kusch   +16 more
wiley   +1 more source

The Impact of an Object's Surface Material and Preparatory Actions on the Accuracy of Optical Coordinate Measurement. [PDF]

Materials (Basel)
Owczarek D, Ostrowska K, Sładek J, Gąska A, Harmatys W, Tomczyk K, Ignjatović D, Sieja M.   +7 more
europepmc   +1 more source

Understanding Light‐Soaking Effects in Silicon Solar Cells by Considering Charge Carrier‐Enhanced Atomic Hydrogen Release

Progress in Photovoltaics: Research and Applications, EarlyView.
We show that many hydrogen‐related effects in silicon solar cells can be explained by direct electron‐assisted acceptor‐hydrogen pair dissociation. Most importantly, it leads to a high concentration of atomic hydrogen, which is highly reactive and diffusive. We provide a unified physical description of LeTID.
Wolfram Kwapil, Jonas Schön, Benjamin Hammann, Fabian T. Thome, Stefan W. Glunz   +4 more
wiley   +1 more source

Hydroxyl‐Terminated Polybutadiene‐Based Molding Powders as an Alternative Route for Manufacturing Pressed Polymer‐Bonded Explosives

Propellants, Explosives, Pyrotechnics, EarlyView.
This study presents an alternative method to manufacture polymer‐bonded explosives by partially curing an HTPB‐based molding powder prior to compaction. The study shows that the length of partial cure time before compaction directly influenced the geometric fidelity, homogeneity, compressive strength, density, and internal microstructure.
Ismar L. Chew, Cole Stephens, Ellen Ma, Julio Hernandez, Monique S. McClain   +4 more
wiley   +1 more source