Results 31 to 40 of about 1,611,510 (293)

Investigation of the Uniformity of Gel Shrinkage by Imaging Tracer Particles Using X‐Ray Microtomography

open access: yesAdvanced Engineering Materials, EarlyView., 2023
A novel method for tracking structural changes in gels using widely accessible microcomputed tomography is presented and validated for various hydro‐, alco‐, and aerogels. The core idea of the method is to track positions of micrometer‐sized tracer particles entrapped in the gel and relate them to the density of the gel network.
Anja Hajnal   +3 more
wiley   +1 more source

Imaging capability of pseudomorphic high electron mobility transistors, AlGaN/GaN, and Si micro-Hall probes for scanning Hall probe microscopy between 25 and 125°C [PDF]

open access: yes, 2009
The authors present a comparative study on imaging capabilities of three different micro-Hall probe sensors fabricated from narrow and wide band gap semiconductors for scanning hall probe microscopy at variable temperatures.
Akram, R., Dede, M., Oral, Ahmet
core   +2 more sources

Evolution and Evaluation of the Penalty Method for Alternative Graphs

open access: yesAlgorithmic Approaches for Transportation Modeling, Optimization, and Systems, 2013
Computing meaningful alternative routes in a road network is a complex problem ‐ already giving a clear definition of a best alternative seems to be impossible.
Moritz Kobitzsch   +2 more
semanticscholar   +1 more source

Improved kernels for Signed Max Cut parameterized above lower bound on (r,l)-graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2017
A graph $G$ is signed if each edge is assigned $+$ or $-$. A signed graph is balanced if there is a bipartition of its vertex set such that an edge has sign $-$ if and only if its endpoints are in different parts.
Luerbio Faria   +3 more
doaj   +1 more source

Ruddlesden–Popper perovskite sulfides A3B2S7: A new family of ferroelectric photovoltaic materials for the visible spectrum [PDF]

open access: yes, 2016
Perovskite ferroelectric materials exhibit the novel ferroelectric photovoltaic effect, where photon-excited electron–hole pairs can be separated by ferroelectric polarization.
Gou, Gaoyang, Li, Ju, Wang, Hua
core   +1 more source

A Linear Kernel for Planar Total Dominating Set [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2018
A total dominating set of a graph $G=(V,E)$ is a subset $D \subseteq V$ such that every vertex in $V$ is adjacent to some vertex in $D$. Finding a total dominating set of minimum size is NP-hard on planar graphs and W[2]-complete on general graphs when ...
Valentin Garnero, Ignasi Sau
doaj   +1 more source

Pomological and technological characteristics of collected selections of cherry plum Prunus cerasifera Erhr. [PDF]

open access: yes, 2005
A plantation collection containing 32 genotypes selected from spontaneous populations of cherry plum Prunus cerasifera Erhr. was set up in the region of the Eastern Serbian town of Svrljig. The fruit trees budded from Prunus cerasifera seedlings and were
Miletić Rade   +3 more
core   +1 more source

Exact values for three domination-like problems in circular and infinite grid graphs of small height [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2019
In this paper we study three domination-like problems, namely identifying codes, locating-dominating codes, and locating-total-dominating codes. We are interested in finding the minimum cardinality of such codes in circular and infinite grid graphs of ...
Marwane Bouznif   +3 more
doaj   +1 more source

The Mass Mixing Length in Convective Stellar Envelopes

open access: yes, 2011
The scale length over which convection mixes mass in a star can be calculated as the inverse of the vertical derivative of the unidirectional (up or down) mass flux.
Stein, Robert F., Trampedach, Regner
core   +1 more source

Vector boson tagged jets and jet substructure [PDF]

open access: yes, 2017
In these proceedings, we report on recent results related to vector boson-tagged jet production in heavy ion collisions and the related modification of jet substructure, such as jet shapes and jet momentum sharing distributions. $Z^0$-tagging and $\gamma$
Vitev, Ivan
core   +3 more sources

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