Results 101 to 110 of about 236,568 (372)

Existence of horizons in Robinson-Trautman spacetimes of arbitrary dimension

open access: yes, 2010
We derive the higher dimensional generalization of Penrose-Tod equation describing past horizon in Robinson-Trautman spacetimes with a cosmological constant and pure radiation. Results for D=4 dimensions are summarized.
Svitek, Otakar
core   +1 more source

Intensive Widmannstätten Nanoprecipitates Catalyze SnTe With State‐of‐the‐Art Thermoelectric Performance

open access: yesAdvanced Materials, EarlyView.
The intensive lath‐shaped Ag2Te Widmannstätten nanoprecipitates are in situ generated in SnTe via AgPbSbTe3 alloying, and align with the formation of the parallel type and twin type interfaces. These Widmannstätten nanoprecipitates effectively scatter phonons to reduce the lattice thermal conductivity, resulting in a significantly enhanced average ZT ...
Tu Lyu   +10 more
wiley   +1 more source

A dynamical process of several variables

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2018
In the space of ϕ-distributions with values belonging to a Banach space, the process described by the problem of partial differential equation has been considered. Conditions under which the process is dynamic have been given.
V.S. Mokeichev, A.M. Sidorov
doaj  

Natural Design of a Stabilized Cross‐β Fold: Structure of the FuA FapC from Pseudomonas Sp. UK4 Reveals a Critical Role for Stacking of Imperfect Repeats

open access: yesAdvanced Materials, EarlyView.
We report a 3.2 Å cryoEM structure of functional amyloid protein FapC from Pseudomonas sp. UK4, an essential component of bacterial biofilm, which reveals a Greek key‐shaped protofilament, supports bioinformatically determined motifs, nuances AlphaFold predictions, emphasizes heterogeneous cross‐β stacking in amyloid cross‐seeding and shows strain ...
Yanting Jiang   +13 more
wiley   +1 more source

Parameter estimation problems for distributed systems using a multigrid method [PDF]

open access: yes
The problem of estimating spatially varying coefficients of partial differential equations is considered from observation of the solution and of the right hand side of the equation.
Dutt, P., Taasan, S.
core   +1 more source

Existence of solutions for quasilinear elliptic equations involving a nonlocal term

open access: yesElectronic Journal of Differential Equations, 2015
This article establishes the existence of solutions for a partial differential equation involving a quasilinear elliptic operator and a nonlocal term.
Maria Farcaseanu, Denisa Stancu-Dumitru
doaj  

Nonlinear nonhomogeneous Robin problems with dependence on the gradient

open access: yesBoundary Value Problems, 2018
We consider a nonlinear elliptic equation driven by a nonhomogeneous partial differential operator with Robin boundary condition and a convection term.
Yunru Bai   +2 more
doaj   +1 more source

Spin‐Polarized Antiferromagnets for Spintronics

open access: yesAdvanced Materials, EarlyView.
This review highlights recent advances in anomalous and spin transport phenomena in spin‐polarized antiferromagnets. Key effects—including the anomalous Hall, Nernst, and magneto‐optical effects—are discussed across various antiferromagnetic platforms.
Zhenzhou Guo   +5 more
wiley   +1 more source

Further results about the exact solutions of conformable space–time fractional Boussinesq equation (FBE) and breaking soliton (Calogero) equation

open access: yesResults in Physics, 2022
Seeking for the exact solutions of fractional nonlinear partial differential equations (FNPDE) has penetrated into almost every discipline of the natural, engineering, mathematics, and social sciences.
Hongyu Chen, Qinghao Zhu, Jianming Qi
doaj  

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