Results 211 to 220 of about 2,547,973 (350)

Source Profile Analysis of Atmospheric Volatile Organic Compounds in Chongqing. [PDF]

Toxics
Zhang A, Qi X, Jiang Y, Zuo H, Chen Y, Li X.   +5 more
europepmc   +1 more source

Exploring Thermal and Mechanical Strains During Laying Down Process in Fused Filament Fabrication

Macromolecular Materials and Engineering, EarlyView.
This study analyzes strain evolution and thermal behavior during FFF of PLA using strain gauges and infrared imaging. Microstrain levels depend on printing conditions, with adhesion‐induced compression during cooling and peak strains in early layers. Microtomography shows minimal porosity, while thermal imaging reveals rapid heat penetration, strong ...
Boubakeur Mecheri, Jaianth Vijayakumar, Elodie Boller, Sofiane Guessasma   +3 more
wiley   +1 more source

Recent Progress in Preparation, Improvement and Applications of Green Polymer Composites. [PDF]

Biopolymers
Mojapelo KS, Kupolati WK, Burger EA, Ndambuki JM, Snyman J, Sadiku ER.   +5 more
europepmc   +1 more source

Catalyst‐Free Mass Polymerization and Characterization of Bio‐Polyhydroxhyurethanes Based on Resorcinol Bis(Cyclocarbonate)

Macromolecular Materials and Engineering, EarlyView.
Non‐isocyanate polyhydroxyurethanes (PHUs) were synthesized from resorcinol bis(cyclocarbonate) and eco‐friendly diamines under mild, catalyst‐free conditions. The resulting polymers were extensively characterized for their structural, thermal, and mechanical properties, as well as processability and adhesion performance.
Federico Olivieri, Noemi Faggio, Giovanni Dal Poggetto, Chiara Santillo, Roberto Avolio, Rachele Castaldo, Mariacristina Cocca, Maria Emanuela Errico, Marino Lavorgna, Gennaro Gentile   +9 more
wiley   +1 more source

Mapping the evidence on occupational exoskeleton use for the workforce in healthcare, social care, and industry: A systematic scoping review. [PDF]

Wearable Technol
Bhat S, Gavin J, Warner M, Myall M.
europepmc   +1 more source

Bio‐Based Epoxy Resins from Estragole: Achieving High Glass Transition Temperatures Comparable to DGEBA and Simultaneously Low Viscosities

Macromolecular Materials and Engineering, EarlyView.
Two novel bio‐based epoxy monomers, diglycidyl‐4‐allylphenol (DG‐4A) and triglycidyl‐diallylphenol (TG‐DA), derived from estragole (92% and 72% bio‐content), were synthesized and cured with isophorone diamin (IPDA) and 4,4´‐diaminodiphenyl sulfone (DDS). The resins show high Tgs, with DG‐4A reaching and TG‐DA exceeding DGEBA‐based systems. These resins
Florian Bauer, Elisabeth Schamel, Herbert Schlachter, Gerd Wehnert, Dominik Söthje   +4 more
wiley   +1 more source

Use of Biomass-Derived Materials for Their Potential Addition to Car Bumpers: A Critical Review. [PDF]

Polymers (Basel)
Fragassa C, Migani S, Awais M, Jucja O, Mujtaba Z, Santulli C.   +5 more
europepmc   +1 more source

Don't You Know That You're Toxic? How Influencer‐Driven Misinformation Fuels Online Toxicity

Psychology &Marketing, EarlyView.
ABSTRACT Research on misinformation has focused on message content and cognitive bias, overlooking how source type shapes toxic engagement. This study addresses that gap by showing that influencer‐driven misinformation does not merely increase toxicity: it reconfigures its nature and persistence through relational and social influence mechanisms ...
Giandomenico Di Domenico, Federico Mangió, Denitsa Dineva   +2 more
wiley   +1 more source

Assessing Cumulative Musculoskeletal Strain in Automotive Mechanics: Insights from Real-World Occupational Analysis. [PDF]

Med Lav
Daneshmandi H, Sadeghian R, Rahgoshay N, Sartavi N, Negahdari F, Golkari L.   +5 more
europepmc   +1 more source

Impact and Post‐Impact Properties of Carbon Fiber Fabric Laminates Reinforced With Carbon Nanofibres

Polymer Composites, EarlyView.
Carbon nanofiber addition on the low‐velocity impact response of carbon fiber laminates. ABSTRACT The use of carbon fiber reinforced polymers (CFRPs) is limited by their susceptibility to low‐velocity impact (LVI) damage. This study investigates the effect of incorporating 0.75 wt.% carbon nanofibres (CNFs) into the epoxy matrix of carbon fiber fabric ...
Paulo Santos, Abílio P. Silva, Paulo N. B. Reis   +2 more
wiley   +1 more source