Results 191 to 200 of about 14,585,927 (234)

Polycarbonate Vitrimers and Dynamic Co‐Networks From Epoxide/Carbon Dioxide Copolymerization

Macromolecular Rapid Communications, EarlyView.
This work demonstrates how CO2‐derived poly(propylene carbonate) and poly(cyclohexene carbonate) backbones influence vitrimer thermo‐mechanical behavior. By tuning backbone composition, epoxide crosslinker chemistry and blend ratios, the crosslinked materials span a wide property window, from highly extensible to stiff, glassy networks, establishing an
Satej S. Joshi, Sophia Aracri, Mark D. Foster, James M. Eagan   +3 more
wiley   +1 more source

Effect of Welding Heat Input on Microstructure and Properties of CGHAZ in Deep-Sea Oil and Gas Transportation Pipeline Steel. [PDF]

Materials (Basel)
Ran L, Liu S, Li B, Li Y, Hong R, Wang B, Liu Q, Jia S.   +7 more
europepmc   +1 more source

Chemically and Mechanically Recyclable Polyolefins Incorporating Covalent Adaptable Networks

Macromolecular Rapid Communications, EarlyView.
Low‐molecular‐weight polypropylene is converted into a crosslinked polyolefin containing a covalently adaptable network. The semicrystalline material remains melt‐processable and mechanically recyclable. Its thermal and mechanical properties are comparable to commercial polyolefins.
Andrii Tiiara, Bernadine Daichendt, Sergiy Minko, Olga Kuksenok, Igor Luzinov   +4 more
wiley   +1 more source

Weld Width Measurement and Defect Detection Method for Desiccant Cartridges Based on Machine Vision. [PDF]

Sensors (Basel)
Wang Q, Cao S, Xiang S, Zhang D, Song T, Xu Z, Jiang Q.   +6 more
europepmc   +1 more source

Overlap Percentage Effects on Microstructure and Microhardness in Wire Arc Additive Manufacturing of AISI 308L Stainless Steel

MetalMat, EarlyView.
Overlap percentage governs the remelting, dilution, and solidification behavior of CMT‐WAAM AISI 308L stainless steel. Increasing overlap to 50% promotes stronger bead‐to‐bead bonding, wider transition zones, and localized hardness enhancement, with the highest hardness observed in the overlap region due to grain refinement and δ‐ferrite redistribution.
Mojtaba Karamimoghadam, Mohammad Rezayat, Antonio Mateo, Nicola Contuzzi, Giuseppe Casalino   +4 more
wiley   +1 more source

StripePoint-YOLO: Task-Adaptive Detection of Multi-Type Weld Seam Keypoints in Noisy Industrial Welding Scenes. [PDF]

Sensors (Basel)
Yang M, Li S, Sun X, Wang H, Gao A, Du F, Chen C.   +6 more
europepmc   +1 more source

Resilience for restoration: Insights from the Northern Great Plains native seed system

People and Nature, EarlyView.
Abstract Native plants are essential to ecological restoration and culturally important to local and Tribal communities, yet native seed systems across the United States (US) struggle to meet restoration demand. In the US Northern Great Plains, land conversion of native ecosystems means restoration potential is high but constrained by an underdeveloped
Elena Friedman, Lauren Redmore, Lora Perkins, Jennifer Zavaleta Cheek   +3 more
wiley   +1 more source

DNA damage in the leukocytes of nanocomposite-exposed workers. [PDF]

Mutagenesis
Rossner P, Novotna B, Pelclova D, Zdimal V, Lischkova L, Klusackova P, Ondracek J, Schwarz J, Maskova L, Dvorackova S, Milcova A, Ambroz A, Rossnerova A.   +12 more
europepmc   +1 more source

Additive Manufacturing of Glass Fiber‐Reinforced Polypropylene and Its Behavior Under Controlled Hydrogen Exposure

Polymer Composites, EarlyView.
Experimental and numerical assessment of GFRPP under lower experimental hydrogen pressures using tensile testing, SEM analysis, and hydrogen uptake estimation. ABSTRACT Glass fiber‐reinforced polypropylene (GFRPP) composites are increasingly explored for hydrogen transport and storage due to their lightweight nature and corrosion resistance.
Ahmadyar Qureshi, Ulises Martin, Abdul Mannan, Homero Castaneda   +3 more
wiley   +1 more source

Effect of Preheating Conditions on the Mechanical Reliability of HDPE Extrusion-Welded Structures for Medical Devices. [PDF]

Polymers (Basel)
Lee CW, Choe E.
europepmc   +1 more source