Results 1 to 10 of about 100,999 (202)
Advanced Materials, 2021 Controlling the shape of noble metal nanoparticles is a challenging but important task in electrocatalysis. Apart from hollow and nanocage structures, concave noble metal nanoparticles are considered a new class of unconventional electrocatalysts that ...
Yusuke Yamauchi +2 more
exaly +2 more sources
3D Stability Analysis Method of Concave Slope Based on the Bishop Method
International Journal of Mining Science and Technology, 2017 In order to study the stability control mechanism of a concave slope with circular landslide, and remove the influence of differences in shape on slope stability, the limit analysis method of a simplified Bishop method was employed.
Liu Han
exaly +3 more sources
SAPD+: An Accelerated Stochastic Method for Nonconvex-Concave Minimax Problems [PDF]
Neural Information Processing Systems, 2022 We propose a new stochastic method SAPD+ for solving nonconvex-concave minimax problems of the form $\min\max\mathcal{L}(x,y)=f(x)+\Phi(x,y)-g(y)$, where $f,g$ are closed convex and $\Phi(x,y)$ is a smooth function that is weakly convex in $x$, (strongly)
Xuan Zhang, N. Aybat, M. Gürbüzbalaban
semanticscholar +1 more source
Experimental and Numerical Investigation of the Heat Transfer of Honeycomb-Structured Tubes
Thermo, 2023 Tube bundle recuperators are generally designed to operate with smooth tubes. Structured tubes can be used to increase the efficiency of recuperators. Compared to smooth tubes, the surface for heat transfer is increased and thus heat transfer is enhanced.
Eileen Trampe +2 more
doaj +1 more source
IEEE Access, 2023 Accurately determining phase fractions in two-phase flows is among the most significant issues in Industries related to the production and processing of petroleum and petrochemicals.
Rahmad B. Y. Syah +5 more
doaj +1 more source
A unified single-loop alternating gradient projection algorithm for nonconvex–concave and convex–nonconcave minimax problems [PDF]
Mathematical programming, 2020 Much recent research effort has been directed to the development of efficient algorithms for solving minimax problems with theoretical convergence guarantees due to the relevance of these problems to a few emergent applications. In this paper, we propose
Zi Xu +3 more
semanticscholar +1 more source
Assessment of Turbulence Models over a Curved Hill Flow with Passive Scalar Transport
Energies, 2022 An incoming canonical spatially developing turbulent boundary layer (SDTBL) over a 2-D curved hill is numerically investigated via the Reynolds-averaged Navier–Stokes (RANS) equations plus two eddy-viscosity models: the K−ω SST (henceforth SST) and the ...
David Paeres +2 more
doaj +1 more source
Nearly unbiased variable selection under minimax concave penalty [PDF]
, 2010 We propose MC+, a fast, continuous, nearly unbiased and accurate method of penalized variable selection in high-dimensional linear regression. The LASSO is fast and continuous, but biased.
Cun-Hui Zhang
semanticscholar +1 more source
Crashworthiness and optimization of novel concave thin-walled tubes
Composite structures, 2021 In this work, a new type of energy-absorbing thin-walled tubes with concave angles is proposed by a unique structural design method to improve the crashworthiness performance of the traditional hexagonal thin-walled tube (TH).
Jianbo Chen +4 more
semanticscholar +1 more source
Frontiers in Materials, 2021 Noble metal nanocrystals enclosed with curved surfaces are of great benefit for applications in electrocatalysis since the atomic steps and kinks on these facets have higher chemical activity.
Quanlin Wu +6 more
doaj +1 more source