Results 81 to 90 of about 13,314,477 (348)

Shortest Recurrence Periods of Forced Novae

, 2016
We revisit hydrogen shell burning on white dwarfs (WDs) with higher mass accretion rates than the stability limit, \dot M_stable, above which hydrogen burning is stable. Novae occur with mass accretion rates below the limit.
Hachisu, Izumi, Kato, Mariko, Saio, Hideyuki   +2 more
core   +1 more source

Backbone Heterojunction Photocatalysts for Efficient Sacrificial Hydrogen Production

Advanced Functional Materials, EarlyView.
Herein, a ‘single‐component’ organic semiconductor photocatalyst is presented in which a molecular donor is bonded to a polymer acceptor. The resultant material demonstrates exceptional photocatalytic activity for hydrogen evolution in aqueous triethylamine with an outstanding external quantum efficiency of 38% at 420 nm.
Richard J. Lyons, Rhys J. Bourhill, Ewan McQueen, Sam D. Harding, Krzysztof Pawlak, Thomas Fellowes, Harry W. Capps, Alexander J. Cowan, Andrew I. Cooper, Adrian M. Gardner, Martijn A. Zwijnenburg, Reiner Sebastian Sprick   +11 more
wiley   +1 more source

The effect of 12C + 12C rate uncertainties on the evolution and nucleosynthesis of massive stars

, 2012
[Shortened] The 12C + 12C fusion reaction has been the subject of considerable experimental efforts to constrain uncertainties at temperatures relevant for stellar nucleosynthesis.
A. Hungerford, Aguilera, Aikawa, Angulo, Arcoragi, Arnett, Arnett, Arnett, Arnett, Barrón-Palos, Bennett, Betts, Busso, C. Fryer, Caughlan, Chieffi, Clayton, Cooper, Couch, Dayras, de Jager, Descouvemont, Diaz-Torres, Diaz-Torres, Dillmann, Eggenberger, El Eid, El Eid, F. Herwig, F. X. Timmes, Ferguson, Fryer, Fuller, Fynbo, G. Rockefeller, Gasques, Grevesse, Gropp, Heger, Hirschi, Hirschi, Hix, Iapichino, Iliadis, Imanishi, Imbriani, Imbriani, Itoh, Itoh, Jaeger, Jiang, Jiang, K. Nomoto, Kondo, Kunz, Käppeler, Lamb, Limongi, M. E. Bennett, M. Pignatari, M. Wiescher, Maeder, Mauron, Meynet, Michaud, Montes, Mukhamedzhanov, Nugis, Oda, Perez-Torres, Peters, Pignatari, Prantzos, R. Hirschi, Raiteri, Raiteri, Rauscher, Rauscher, Rauscher, Rogers, S. Diehl, Spillane, Strieder, Strieder, Terrasi, The, The, Tinsley, Travaglio, Truran, Truran, Tur, Vink, Woosley, Woosley, Woosley, Xu, Yakovlev, Young   +98 more
core   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

Alkali Ion‐Incorporated HfO2 Dielectrics for Reconfigurable Neuromorphic Computing

Advanced Functional Materials, EarlyView.
This work presents an indium gallium zinc oxide (IGZO) transistor with an alkali cation‐integrated hafnium dioxide (HfO2) dielectric exhibiting synaptic behavior via ion retention. The solution‐based film fabrication strategy overcomes the limitations of atomic layer deposition (ALD) and precursor coating, enabling the control of synaptic retention ...
Seung Yeon Ki, In Cheol Kwak, Seonkwon Kim, Jihyun Kim, Dong Gue Roe, Se‐Jin Kim, Joohoon Kang, Jeong Ho Cho   +7 more
wiley   +1 more source

Characterization, performance evaluation and optimization of wheat straw – bagasse blended fuel pellets

International Journal of Renewable Energy Development
This study was carried out to assess the fuel pellets produced from wheat straw and sugarcane bagasse. The wheat straw and bagasse were blended into four ratios including; 10:90, 30:70, 70:30 and 90:10 (wheat straw: bagasse) and developed into fuel ...
Isabel Musula Matasyoh, Booker Osodo, Joseph Muguthu, Emmanuel Kombe   +3 more
doaj   +1 more source

On the Sensitivity of Massive Star Nucleosynthesis and Evolution to Solar Abundances and to Uncertainties in Helium Burning Reaction Rates

, 2007
We explore the dependence of pre-supernova evolution and supernova nucleosynthesis yields on the uncertainties in helium burning reaction rates. Using the revised solar abundances of Lodders (2003) for the initial stellar composition, instead of those of
Alexander Heger, Clarisse Tur, Sam M. Austin, Scalo J. M.   +3 more
core   +1 more source

Type Ia Supernovae: An Examination of Potential Progenitors and the Redshift Distribution [PDF]

, 1997
We examine the possibility that supernovae type Ia (SN Ia) are produced by white dwarfs accreting from Roche-lobe filling evolved companions, under the assumption that a strong optically thick stellar wind from accretor is able to stabilize the mass ...
Canal R., Cappellaro E., de Kool M., Eggleton P. P., Kahabka P., L. Yungelson, Li X.-D., M. Livio, Madau P., Mochkovich R., Paczynski B., Pastetter L., Refsdal S., Refsdal S., Shaefer B. E., Soberman G. E., Uus U., van den Heuvel E. P. J., Yungelson L.   +18 more
core   +3 more sources

MPI‐Guided Photothermal Therapy of Prostate Cancer Using Stem Cell Delivery of Magnetotheranostic Nanoflowers

Advanced Functional Materials, EarlyView.
Tumor‐tropic human mesenchymal stem cells (hMSCs) were used as delivery vehicles for magnetotheranostic gold–iron oxide nanoflowers. Magnetic particle imaging of the iron component demonstrated widespread intratumoral distribution and sustained retention in contrast to injection of naked nanoflowers.
Behnaz Ghaemi, Ana Rosu, Shreyas Kuddannaya, Gautier Laurent, Rana Bazzi, Stéphane Roux, Ali Shakeri‐Zadeh, Jeff W. M. Bulte   +7 more
wiley   +1 more source