Results 81 to 90 of about 503,982 (356)

How to Chemically Protect PFAS‐Free Membranes in Fuel Cells: Radical Quenching Poly(vinylphosphonic acid) Layer

Advanced Functional Materials, EarlyView.
Hydrocarbon membranes are a greener alternative to PFSA in PEM fuel cells, but degrade rapidly from radical attack. We present a novel strategy using poly(vinylphosphonic acid) (PVPA) as a local radical scavenger. Incorporated as an interfacial barrier, PVPA enhances chemical stability and significantly extends membrane lifetime under accelerated ...
Hendrik Sannemüller, Hannes Liepold, Frederik Brendel, Janka Friese, Carolin Klose, Tym de Wild, Andreas Münchinger   +6 more
wiley   +1 more source

Tracing Organic Carbon Sources With Ramped Pyrolysis/Oxidation

Geophysical Research Letters
AbstractTracing sources of organic carbon (OC) is a critical aspect of studying surface carbon cycling. Previous methods, such as carbon and nitrogen isotopes, have struggled to separate different sources in some case studies. This study introduces a new approach for quantifying OC sources by using ramped pyrolysis/oxidation (RPO) thermograms without ...
Jin Wang, Fei Zhang, Xingqian Cui, Peng Cheng, Pingping Pan, Guanxia Wu, Yuanxin Qu, Huayu Huang, Zhangdong Jin   +8 more
openaire   +1 more source

Sedimentologie paleoecologie et paleontologie des calcaires crinoidiques au voisinage de la limite couvinien-givetien a Wellin [PDF]

, 1991
The sedimentology of the Eifelian-Givetian boundary beds in the Wellin area indicates a transition from a siliciclastic-carbonate ramp to a gently sloping carbonate platform lacking a true reefal barrier.
Coen-Aubert, M, Mamet, M, Préat, A., Tourneur, F   +3 more
core  

Ofiuroideos del Cretácico Inferior de Patagonia: primer registro fósil articulado para el Mesozoico de América del Sur [PDF]

, 2019
The first articulated remains of ophiuroids for the Mesozoic of South America are described from the Lower Cretaceous of Neuquén Basin, Argentina.
Comerio, Marcos, Fernández, Diana Elizabeth, Giachetti, Luciana María, Pazos, Pablo Jose, Perez, Damián, Stöhr, Sabine, Thuy, Ben   +6 more
core   +2 more sources

Trap‐Assisted Transport and Neuromorphic Plasticity in Lead‐Free 2D Perovskites PEA2SnI4

Advanced Functional Materials, EarlyView.
An artificial retina built from lead‐free layered perovskite (PEA)2SnI4 converts light input into a persistent photocurrent and sums successive flashes over time. Micro/nanocrystals integrated on electrodes act as synapse‐like pixels that perform temporal integration directly in hardware. This in‐sensor preprocessing merges detection and computation on
Ofelia Durante, Valeria Demontis, Karl Jonas Riisnaes, Lam Hoi Tung, Sebastiano De Stefano, Daniela Marongiu, Adolfo Mazzotti, Aditya Bhardwaj, Francesco Mattana, Elisa Pili, Selene Matta, Federico Paolucci, Michele Saba, Andrea Mura, Giovanni Bongiovanni, Monica F Craciun, Saverio Russo, Antonio Di Bartolomeo   +17 more
wiley   +1 more source

Palaeoenvironmental and diagenetic reconstruction of a closed-lacustrine carbonate system - the challenging marginal setting of the Miocene Ries Crater Lake (Germany) [PDF]

, 2017
Chemostratigraphic studies on lacustrine sedimentary sequences provide essential insights on past cyclic climatic events, on their repetition and prediction through time.
Abdul Aziz, Allan, Allan, Alonso-Zarza, Anadon, Anadón, Anderson, Andrews, Arp, Arp, Arp, Arp, Barnaby, Beier, Benito, Bennett, Brand, Buchner, Buchner, Budd, Böhme, Böhme, Börner, Chamberlain, Christ, Christ, Danielopol, Decrouy, Depeche, Dickson, Dravis, Dwyer, Einsele, Emrich, Flügel, Gentner, Gierlowski-Kordesch, Godet, Goldstein, Gouramanis, Grafenstein, Gray, Halley, Hays, Heaton, Holmes, Immenhauser, Immenhauser, Jankowski, Janz, Janz, Joachimski, Junge, Keatings, Kontrovitz, Kooij, Kwiecien, Leng, Leng, Li, Li, Lohmann, Lohmann, Mangili, Mangili, Marshall, Marshall, Mayr, Mazzini, Melezhik, Mischke, Mutti, Niemann, Oehlerich, Orszag-Sperber, Pache, Pohl, Prieto, Richter, Richter, Riding, Romanek, Rothe, Sanz, Schwarz, Sheppard, Stansell, Staudacher, Stevens, Swart, Talbot, Tütken, Vasconcelos, Wilson, Wittkop, Xia   +95 more
core   +1 more source

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

Advanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles, Alianna Maguire, Thomas Butruille, Jet Lem, Shuo Yang, Pedro Guerra Demingos, Sahar Choukir, Michel Haché, Boran Kumral, Katherine Jia, Charles Jia, Yu Zou, Chandra Veer Singh, Carlos M. Portela, Jun Lou, Pulickel M. Ajayan, Tobin Filleter   +16 more
wiley   +1 more source

Complex geometry and kinematics of subsidiary faults within a carbonate-hosted relay ramp

, 2020
Minor fault geometry and kinematics within relay ramps is strongly related to the stress field perturbations that can be produced when two major fault segments overlap and interact.
M. Mercuri, K. McCaffrey, L. Smeraglia, P. Mazzanti, C. Collettini, E. Carminati   +5 more
semanticscholar   +1 more source

Impact of Stratigraphic Heterogeneity on Hydrocarbon Recovery in Carbonate Reservoirs: Effect of Fluid Properties and Development Strategy [PDF]

, 2012
Imperial Users ...
Nguyen, Thi Thanh Ha, Nguyen, Thi Thanh Ha   +1 more
core  

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

Advanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer, Emilia Fulajtar, Seema Agarwal   +2 more
wiley   +1 more source