Results 91 to 100 of about 82,818 (299)

Iso-curvature fluctuations through axion trapping by cosmic string wakes

, 2005
We consider wake-like density fluctuations produced by cosmic strings at the quark-hadron transition in the early universe. We show that low momentum axions which are produced through the radiation from the axionic string at an earlier stage, may get ...
A. Vilenkin, Biswanath Layek
core   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

Advanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil, Celia Castillo‐Blas, Dawid Krystian Feler, Isabel Gómez‐Recio, Miguel Tinoco, Ana Querejeta‐Fernández, Rodrigo González‐Prieto, Felipe Gándara, Romualdo Santos Silva Jr, Pilar Ferrer, Carlos Prieto, Luc Lajaunie, José Luis Martinez‐Peña, María Luisa Ruiz‐González, José María González‐Calbet   +14 more
wiley   +1 more source

The sausage sigma model revisited

, 2015
Fateev's sausage sigma models in two and three dimensions are known to be integrable. We study their stability under RG flow in the target space by using results from the mathematics of Ricci flow.
Suneeta, Vardarajan
core   +1 more source

Finite element analysis of melting effects on MHD stagnation-point non-Newtonian flow and heat transfer from a stretching/shrinking sheet [PDF]

, 2019
A numerical study is presented for boundary layer flow and heat transfer of micropolar (non-Newtonian) fluid from a stretching/shrinking sheet in the presence of melting and viscous heating.
Beg, OA, Gupta, D, Kumar, L, Singh, B
core   +1 more source

Porosity Engineering of MXene Architectures: Toward High‐Performance Aqueous Electrochemical Energy Storage

Advanced Materials, EarlyView.
This review systematically summarizes recent advances in porosity engineering of MXenes, with a focused discussion on their structure‐governed energy storage properties. A critical analysis of structure–property relationships is presented across alkali‐ion batteries, multivalent‐ion batteries, and supercapacitors.
Shude Liu, Jieming Chen, Xue Peng, Huilin Zhang, Ling Kang, Ming Ma, Zhaoling Li, Yusuke Yamauchi, Bin Ding   +8 more
wiley   +1 more source

Flow and heat transfer of nanofluid over an exponentially shrinking porous sheet with heat and mass fluxes

Propulsion and Power Research, 2018
Steady boundary layer flow of nanofluid past an exponentially porous shrinking sheet in presence of heat and mass fluxes is presented. In this model the combined effects of Brownian motion and thermophoresis on heat transfer and nanoparticle volume ...
Sudipta Ghosh, Swati Mukhopadhyay
doaj   +1 more source

Compressible air flow through a collapsing liquid cavity

, 2010
We present a multiscale approach to simulate the impact of a solid object on a liquid surface: upon impact a thin liquid sheet is thrown upwards all around the rim of the impactor while in its wake a large surface cavity forms.
Bartolo, Battistin, Bergmann, Blake, Chen, Cheng, Coyajee, Deng, Do-Quang, Gaudet, Gekle, Gekle, Gekle, Gekle, Godderidge, Gordillo, Greenhow, Iafrati, Josserand, Laney, Leneweit, Li, Lin, Morton, Oguz, Oguz, Pozrikidis, Rodríguez-Rodríguez, Roe, Vella, Worthington, Zheng   +31 more
core   +1 more source

Localized Temperature Monitoring in Mouse Brain during Light Delivery via a Non‐Planar Tapered Fiber‐Integrated µRTD Sensor

Advanced Materials, EarlyView.
We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena, Marco Bianco, Barbara Spagnolo, Muhammad Fayyaz Kashif, Alberto Bramati, Massimo De Vittorio, Ferruccio Pisanello   +6 more
wiley   +1 more source

Multiplicity and stability of solutions in transport phenomena of non-Newtonian Carreau nanofluid with nonlinear Rosseland thermal approximations and neural prediction

Case Studies in Thermal Engineering
Predicting multiple solutions and conducting stability analyses for heat transfer in non-Newtonian nanofluids are of significant interest in nonlinear mathematics and engineering applications.
Puneet Rana, Xinyi Zhu, Ioan Pop
doaj   +1 more source

Flow and heat transfer past a permeable power-law deformable plate with orthogonal shear in a hybrid nanofluid

Alexandria Engineering Journal, 2020
This study concerns the three-dimensional hybrid nanofluid flow and heat transfer due to a deformable (stretching/shrinking) plate with power-law velocity and orthogonal surface shear. The flow due to the shrinking sheet is maintained with the imposition
Najiyah Safwa Khashi'ie, Norihan Md Arifin, Ioan Pop, Roslinda Nazar, Ezad Hafidz Hafidzuddin, Nadihah Wahi   +5 more
doaj   +1 more source