Results 151 to 160 of about 5,719 (262)

A tipping point for tipping points

Oikos, EarlyView.
Tipping points (TPs) – often understood as abrupt changes to a system – have become a popular framework for ecology and environmental science across spatial and temporal scales. The underlying, quantitative foundation of TP theory is built on mathematical models from catastrophe and predator–prey theories.
David G. Jenkins, Alexandria G. Lacoursière   +1 more
wiley   +1 more source

Experimental Comparative Analysis of Hole‐Making Strategies and Cutting Parameters on Flexural Properties and Induced Delamination in S2 Glass and Basalt Fiber‐Reinforced Polymers

Polymer Composites, EarlyView.
Hole‐making strategy and machining parameters influence delamination and hole quality in S2‐glass and basalt FRP composites, which subsequently affet flexural performance. Improved hole integrity leads to enhanced structural performance during three‐point bending.
Sara Saeed Abdulrahman Eltahir, Cagatay Yilmaz, Sinan Kesriklioglu   +2 more
wiley   +1 more source

Color Stability and Wear Behavior of Polished and Glazed Lithium Aluminium Disilicate Hybrid Abutment Crowns: A 3-Year Clinical Pilot Study. [PDF]

Dent J (Basel)
Hey J, Griesbach CR, Kasaliyska M, Arnold C, Schweyen R.   +4 more
europepmc   +1 more source

Recycled Polyacrylonitrile Nanofiber Interleaves With Graphene Nanoplatelets for Adhesively Bonded Composite Joints: Lap‐Shear and Opening‐Mode Fracture Performance

Polymer Composites, EarlyView.
Textile‐waste Orlon is transformed into recycled PAN nanofiber interleaves for tougher and more damage‐resistant adhesive bondlines. ABSTRACT This study presents a sustainable toughening strategy for adhesively bonded CFRP joints by using electrospun polyacrylonitrile (PAN) nanofiber interleaves produced from virgin PAN (vPAN) and recycled PAN (rPAN ...
Mehmet Emin Çetin, Asım Üstün, Mehmet Okan Erdal, Hasan Ulus   +3 more
wiley   +1 more source

Comparison of physico-mechanical properties of 3D-printed resins used as permanent indirect restoration materials. [PDF]

Biomater Investig Dent
Arıkan M, Akarsu S.
europepmc   +1 more source

Process‐Induced Anisotropy and Fracture Behavior of Pellet‐3D Printed PLA and PLA/Flax Biocomposites

Polymer Composites, EarlyView.
Fused Granular Fabrication of PLA and PLA/flax biocomposites, followed by tensile testing and fracture surface analysis to evaluate the effects of raster orientation and layer number on anisotropy and fracture behavior. ABSTRACT Fused granular fabrication (FGF) enables cost‐effective, large‐scale polymer additive manufacturing; however, the mechanical ...
Fernando Ancio, Luis Távara, Luis Miguel Ferreira   +2 more
wiley   +1 more source

From polyetheretherketone to 3D‑printed composites: hydrothermal stability and cement‑dependent resin bonding of high‑performance polymers to pediatric restorations. [PDF]

BMC Oral Health
Lin SI, Tseng CF, Hsieh CF, Mine Y, Chiang YC, Lee CW, Peng TY.   +6 more
europepmc   +1 more source

The Effect of Veil Type and Laminate Architecture on the Mechanical and Dynamic Performance of Aramid Fiber Interlayered Thermoplastic Veil/Epoxy Composites: A Comprehensive Evaluation

Polymer Composites, EarlyView.
Graphical summary of the aramid fiber/thermoplastic veil laminates: (a) H‐2/1 and H‐2/2 hybrid architectures, (b) contrasting FG and PI/aramid microstructures, (c) flexural stiffness ranking, and (d) damping response, illustrating that fine‐glass (FG) veils maximize stiffness while PEI, PI, and PEEK veils maximize damping, with PPS providing an ...
Yavuz Selim Tarih
wiley   +1 more source

Comparative <i>in vitro</i> analysis of polishability of different composite resins. [PDF]

J Conserv Dent Endod
Pal D, Mitra A, Bhattacharyya A, Maity AB, Majumder G.   +4 more
europepmc   +1 more source

Second‐Life Thermoset Manufacturing via Mild Solvolysis of Epoxy‐Matrix Composites and Wet‐Laid Mat Production

Polymer Composites, EarlyView.
From end‐of‐life pultruded CFRP profiles (1) to second life composites (7) through mild solvolysis (2,3), wet‐laid nonwoven mat fabrication (4), resin impregnation (5), and compression molding (6). ABSTRACT The growing use of carbon fiber–reinforced thermosets has led to the accumulation of significant composite waste, posing environmental and economic
Ehsan Zolfaghari, Fabian Rechsteiner, Violetta Schumm, Emanuela Muscolino, Sabina Alessi, Nadka Tz. Dintcheva, Clelia Dispenza   +6 more
wiley   +1 more source