Results 81 to 90 of about 68,417 (195)

Tractable but Hard to Approximate: The Bi‐Objective Minimum s$$ s $$‐t$$ t $$‐Cut Problem With Binary Capacities

open access: yesNetworks, EarlyView.
ABSTRACT The minimum s$$ s $$‐t$$ t $$‐cut problem is one of the most‐studied problems in discrete optimization and has a unique complexity status in multi‐objective optimization. Even though the single‐objective version of the problem can be solved in polynomial time, it has been shown in the seminal work of Papadimitriou and Yannakakis (2000) that ...
Jan Boeckmann   +4 more
wiley   +1 more source

Why Active Representation Varies: Cultural Stereotypes and Differential Treatment by Street‐Level Bureaucrats

open access: yesPublic Administration and Development, EarlyView.
ABSTRACT How do cultural stereotypes influence the likelihood that minority street‐level bureaucrats (SLBs) will actively represent marginalized subgroups within their ethnocultural community? While existing scholarship on representative bureaucracy has focused on the conditions under which minority SLBs engage in active representation, this study ...
Sohad Amaria, Einat Lavee, Nissim Cohen
wiley   +1 more source

The Dependence of Properties on Structural Features in Macro/Micro Levels for PBF‐LB Fabricated Porous NiTi Alloy

open access: yesRare Metals, EarlyView.
ABSTRACT Porous NiTi alloys are widely used in biomedical and engineering fields. Using the PBF‐LB technique, the TPMS and Voronoi porous parts with a porosity of ∼67% and a minimum feature size of 0.15 ± 0.02 mm were fabricated. Although the bulk sample fabricated with the same parameters is defect‐free, μ‐CT reconstruction on the porous sample ...
Wen‐Hao Zeng   +7 more
wiley   +1 more source

Adaptive Sliding‐Mode Control of a Perturbed Diffusion Process With Pointwise In‐Domain Actuation

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT A sliding mode–based adaptive control law is proposed for a class of diffusion processes featuring a spatially‐varying uncertain diffusivity and equipped with several point‐wise actuators located at the two boundaries of the spatial domain as well as in its interior.
Paul Mayr   +3 more
wiley   +1 more source

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