Results 121 to 130 of about 272,983 (311)
Advanced Functional Materials, EarlyView.This work explores the possibility to design stable periodic magnetization textures by transforming a 2D film into a rolled‐up 3D architecture and back. In case of an isotropic exchange‐biased layer architecture, the magnetization encoded in the 3D state evolves into a spin‐spiral pattern with controlled periodicity after unrolling.
Aman Singh +3 more
wiley +1 more source
The chromatic sum of a graph: history and recent developments
International Journal of Mathematics and Mathematical Sciences, 2004 The chromatic sum of a graph is the smallest sum of colors among all proper colorings with natural numbers. The strength of a graph is the minimum number of colors necessary to obtain its chromatic sum.
Ewa Kubicka
doaj +1 more source
Teaching NP completeness in secondary schools
, 2013 In this paper, we show how the theory of NP completeness can be introduced to students in secondary schools. The motivation of this research is that although there are difficult issues that require technical backgrounds, students are already familiar ...
Kim, Seungyon, Park, Seongbin
core
Reduced Graphene Oxide Transparent Electrodes Enabling Compact Soft Tunable Lenses
Advanced Functional Materials, EarlyView.By spray‐coating an elastomeric membrane with reduced graphene oxide (rGO) at various surface densities, elastomeric actuators are manufactured. Electro‐mechano‐optical characterizations show the suitability of rGO as an effective material for compliant, semi‐transparent electrodes, enabling soft electrically tunable lenses with a compact form factor ...
Giacomo Sasso +4 more
wiley +1 more source
Broadcast Graph is NP-Complete
The broadcast model is widely used to describe the process of information dissemination from a single node to all nodes within an interconnected network. In this model, a graph represents the network, where vertices correspond to nodes and edges to communication links.
Jinghan Xu, Zhiyuan Li 0004
openaire +2 more sources
Submicron Metasurface Reconfigured Multiband Smart Windows
Advanced Functional Materials, EarlyView.This work presents a submicron metasurface reconfigured multiband thermochromic smart window. By integrating subwavelength nanostructures into a Fabry−Perot resonator configuration, it mitigates conventional trade‐offs to simultaneously deliver high luminous transmittance and robust solar heating and radiative cooling modulation capabilities ...
Guanya Wang +8 more
wiley +1 more source
MODELING MOVEMENT OF OBJECTS WITHOUT STOPS IN A NETWORK OF CROSSING ROUTES
Informatika, 2018 Modeling of movement of objects without stops in a network of crossing routes is studied. The problem is formulated in terms of disjunctive linear programming, mixed integer linear programming and graph theory.
I. V. Rubanov +2 more
doaj
Computational Complexity in the Design of Voting Rules [PDF]
This paper discusses an aspect of computational complexity in social choice theory. We consider the problem of designing voting rules, which is formulated in terms of simple games.
Koji Takamiya, Akira Tanaka
core
On the membership problem for the {0, 1/2}-closure [PDF]
, 2011 In integer programming, {0,1/2}-cuts are Gomory–Chvátal cuts that can be derived from the original linear system by using coefficients of value 0 or 1/2 only. The separation problem for {0,1/2}-cuts is strongly NP-hard.
Schulz, AS +2 more
core
Advanced Healthcare Materials, EarlyView.This study investigates the M13 bacteriophage as a biomimetic nanovector capable of crossing in vitro models of the blood–brain barrier. By exploiting peculiar transcellular pathways, M13 avoids lysosomal degradation and preserves its structural integrity and functionality.
Silvia Vercellino +12 more
wiley +1 more source