Results 71 to 80 of about 242,143 (309)

Fluorophobic Effect Enables Selective Detection of PFAS in Water with Electrolyte‐Gated Organic Transistors

Advanced Functional Materials, EarlyView.
PerFluoroAlkyl Substances (PFAS) are responsible of major and persistent environmental pollution worldwide. This work demonstrates an ultra‐sensitive sensor for PFAS based on an organic transistor whose gate is functionalized with a binary self‐assembled monolayer containing a perfluorinated molecule.
Rian Zanotti, Marcello Berto, Matteo Sensi, Alessandro Paradisi, Eleonora Veronese, Lucia Pasquato, Carlo Augusto Bortolotti, Pierangelo Metrangolo, Fabio Biscarini   +8 more
wiley   +1 more source

Trajectories of photons around a rotating black hole with unusual asymptotics

European Physical Journal C: Particles and Fields
Most black hole solutions are characterized with asymptotically flat, or asymptotically (anti) de-Sitter behaviors, but some black holes with unusual asymptotics have also been constructed, which is believed to provide remarkable insights into our ...
Yong-Zhuang Li, Xiao-Mei Kuang
doaj   +1 more source

Surface Wrinkling of Plasma‐Exposed PDMS is Caused by Water Vapor Sorption: An Optical Environmental Sensor

Advanced Functional Materials, EarlyView.
Wrinkling of soft materials, such as polydimethylsiloxane (PDMS), underpins a myriad of technologies. Plasma‐oxidation of PDMS induces spontaneous wrinkling, which is canonically attributed to thermal expansion‐contraction of bilayers. Employing experiments and modelling, it is demonstrated that sorption of water vapor is instead responsible for ...
Zain Ahmad, Gunjan Tyagi, Shuning Xiang, Jerry Heng, Pedro Patrício, Paulo I. C. Teixeira, Christopher M. Stafford, Jack F. Douglas, João T. Cabral   +8 more
wiley   +1 more source

Magnetic‐Field Tuning of the Spin Dynamics in the Quasi‐2D Van der Waals Antiferromagnet CuCrP2S6

Advanced Functional Materials, EarlyView.
This study reveals 2D character of the spin dynamics in CuCrP2S6, as well as complex field dependence of collective excitations in the antiferromagnetically ordered state. Their remarkable tuning from the antiferromagnetic to the ferromagnetic type with magnetic field, together with the non‐degeneracy of the magnon gaps favorable for the induction of ...
Joyal John Abraham, Yaqian Guo, Yuliia Shemerliuk, Sebastian Selter, Saicharan Aswartham, Kranthi Kumar Bestha, Laura T. Corredor, Anja U. B. Wolter, Olga Kataeva, Luka Rogić, Noah Somun, Damjan Pelc, Oleg Janson, Jeroen van den Brink, Bernd Büchner, Vladislav Kataev, Alexey Alfonsov   +16 more
wiley   +1 more source

On the number of partitions of a number into distinct divisors [PDF]

Notes on Number Theory and Discrete Mathematics
Let p_{dsd}(n) be the number of partitions of n into distinct squarefree divisors of n. In this note, we find a lower bound for p_{dsd}(n), as well as a sequence of n for which p_{dsd} (n) is unusually large.
Noah Lebowitz-Lockard, Joseph Vandehey
doaj   +1 more source

Weyl-Titchmarsh type formula for Hermite operator with small perturbation [PDF]

Opuscula Mathematica, 2009
Small perturbations of the Jacobi matrix with weights \(\sqrt{n}\) and zero diagonal are considered. A formula relating the asymptotics of polynomials of the first kind to the spectral density is obtained, which is an analogue of the classical Weyl ...
Sergey Simonov
doaj   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

Quantum random walks in one dimension via generating functions [PDF]

Discrete Mathematics & Theoretical Computer Science, 2007
We analyze nearest neighbor one-dimensional quantum random walks with arbitrary unitary coin-flip matrices. Using a multivariate generating function analysis we give a simplified proof of a known phenomenon, namely that the walk has linear speed rather ...
Andrew Bressler, Robin Pemantle
doaj   +1 more source

Quasi-asymptotics and \(S\)-asymptotics of ultradistributions

Bulletin, Classe des Sciences Mathématiques et Naturelles, Sciences mathématiques, 1995
Summary: The notions of the quasi-asymptotics and the \(S\)-asymptotics at infinity are extended from the space of Schwartz's distributions to the space of ultradistributions. Some basic properties and the relation between these two types of asymptotics are proved.
Pilipović, Stevan, Stanković, Bogoljub
openaire   +2 more sources

Asymptotic Primes and Asymptotic Grades on Modules

Journal of Algebra, 1995
The aim of this paper is to study various questions related to sets of prime ideals associated to powers of an ideal \(I\) of a commutative Noetherian ring with identity \(R\) and a finitely generated \(R\)-module \(M\). In several recent papers (mid '80), \textit{D. Katz}, \textit{S. McAdam}, \textit{J. L.
openaire   +2 more sources