Results 111 to 120 of about 3,348,536 (356)
Van Der Waals Hybrid Integration of 2D Semimetals for Broadband Photodetection
Advanced Materials, EarlyView.Advanced broadband photodetector technologies are essential for military and civilian applications. 2D semimetals, with their gapless band structures, high mobility, and topological protection, offer great promise for broadband PDs. This study reviews the latest advancements in broadband PDs utilizing heterostructures that combine 2D semimetals with ...
Xue Li +9 more
wiley +1 more source
Regularity of nonlinear generalized functions: A counterexample in the nonstandard setting
Examples and Counterexamples, 2021 Regularity theory in generalized function algebras of Colombeau type is largely based on the notion of G∞-regularity, which reduces to C∞-regularity when restricted to Schwartz distributions.
H. Vernaeve
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Aramid Nanofiber Aerogels: Versatile High Complexity Components for Multifunctional Composites
Advanced Materials, EarlyView.Different forms of aramid nanofibers (ANFs) and especially aerogels from them, offer a sustainable route to high‐performance biomimetic nanocomposites. Due to the cartilage‐like architecture, ANF‐based materials enable breakthroughs in energy, electromagnetic, biomedical, and water purification technologies.
Mingqiang Wang +9 more
wiley +1 more source
Advanced Materials, EarlyView.Compact, robust, and ultralow‐loss on‐chip photonic devices are essential for densely integrated photonic chips. Here, the underlying radiation mechanism in topological valley edge states is unveiled and a new methodology of interface topology driven bandgap and wavevector engineering is proposed to thoroughly suppress their radiation losses, thereby ...
Zhonglei Shen +6 more
wiley +1 more source
Distinguishing Cartesian Products of Countable Graphs
Discussiones Mathematicae Graph Theory, 2017 The distinguishing number D(G) of a graph G is the minimum number of colors needed to color the vertices of G such that the coloring is preserved only by the trivial automorphism.
Estaji Ehsan +4 more
doaj +1 more source
Programming Defects and Cavities into Colloidal Crystals Engineered With DNA
Advanced Materials, EarlyView.Seed‐mediated crystallization is adapted for colloidal crystals to design cavities and defect architectures through chemically programmed DNA sequences and appropriate seed particle geometry. This synthetic approach combines tenets from both atomic and colloidal crystallization to deliberately control defect formation in superlattices and enables the ...
Rachel R. Chan +13 more
wiley +1 more source
Thinnest Covering of the Euclidean Plane with Incongruent Circles
Analysis and Geometry in Metric Spaces, 2017 In 1958 L. Fejes Tóth and J. Molnar proposed a conjecture about a lower bound for the thinnest covering of the plane by circles with arbitrary radii from a given interval of the reals.
Dorninger Dietmar
doaj +1 more source
Discrete mathematics as a resource for developing scientific activity in the classroom. [PDF]
ZDM, 2022 Colipan X, Liendo A.
europepmc +1 more source
Environmental Control of Ferroelectricity in Hafnia Films
Advanced Materials, EarlyView.A reversible transition from nonferroelectric to ferroelectric behavior is achieved in hafnia films by modulating the surrounding atmosphere. The domain relaxation dynamics exhibit high sensitivity to environmental factors, including gas composition (ambient, N2, CO2, O2) and relative humidity, highlighting the crucial role of the measurement ...
Waseem Ahmad Wani +10 more
wiley +1 more source
On the computation of foldings [PDF]
FME Transactions, 2017 The process of determining the development (or net) of a polyhedron or of a developable surface is called unfolding and has a unique result, apart from the placement of different components in the plane.
Stachel Hellmuth
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