Results 31 to 40 of about 887 (132)

Basics and Perspectives of Visible and Near‐UV Light‐Induced Defluorination of Perfluoroalkylsubstances by Semiconductor Nanocrystals

open access: yesChemPhotoChem, Volume 10, Issue 6, June 2026.
This review highlights recent advances in the light‐driven destruction of persistent per‐ and polyfluoroalkyl substances (PFASs) using semiconductor nanocrystals. By exploiting nonlinear photophysical and photochemical processes, these nanomaterials harness energy‐efficient visible and near‐UV light‐emitting diodes (LEDs) to drive extreme reduction ...
Yoichi Kobayashi
wiley   +1 more source

The investigation of motor current signals from a centrifugal pump for fault diagnosis [PDF]

open access: yes, 2014
In this paper, motor current signals from electrical control systems, rather than installing additional measurement systems, are characterised for the fault diagnosis of centrifugal pumps.
Chen, Zhi   +5 more
core  

The minor groove-binding agent ELB-21 forms multiple interstrand and intrastrand covalent cross-links with duplex DNA and displays potent bactericidal activity against methicillin-resistant Staphylococcus aureus [PDF]

open access: yes, 2011
Objectives The antistaphylococcal pyrrolobenzodiazepine dimer ELB-21 forms multiple adducts with duplex DNA through covalent interactions with appropriately spaced guanine residues; it is now known to form interstrand and intrastrand adducts with ...
Rahman, Khondaker; id_orcid   +12 more
core   +1 more source

Seasonal Flooding Disrupts Expected Depth‐Dependent Patterns of Mineral Associated Carbon, Nitrogen, and Phosphorus Across Land Uses

open access: yesGlobal Change Biology, Volume 32, Issue 4, April 2026.
The subsoil (< 30 cm) stores ~25%–70% of soil organic matter (OM), rendering it critical for carbon (C), nitrogen (N), and phosphorus (P) persistence. Our understanding of how OM cycles down the soil profile largely comes from well‐drained soils. Yet seasonal flooding can destabilize mineral‐associated organic matter (MAOM), the most persistent OM pool,
Hannah P. Lieberman   +4 more
wiley   +1 more source

Elliptical Orbit Representation for the Annual Evolution of the Northern Hemisphere Stratospheric Polar Vortex. Part I: Diagnosing Interannual Variability

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract Using a single annual frequency with each year defined from July 1 to June 30 of the following calendar year, this study fits an ellipse to the yearly phase space trajectory of the daily time series of MU (stratospheric mass‐weighted zonally integrated zonal wind at 60°N) and M (total polar stratospheric air mass over 60–90°N) to represent the
Michael Secor   +4 more
wiley   +1 more source

The method of non-orthogonal frequency division multiplexing on the basic of the Hartley transform with quadrature amplitude modulation of the frequency carriers [PDF]

open access: yes, 2008
В статье рассмотрен метод неортогональной частотной дискретной модуляции на основе преобразования Хартли с квадратурной амплитудной модуляцией частотных несущих.
В.И. Слюсар   +5 more
core  

(Remembering) Vector Coding of Boundaries and Objects in the Subiculum

open access: yesHippocampus, Volume 36, Issue 2, March 2026.
ABSTRACT This review offers a personal and historical perspective on spatial representations of the local environment in hippocampal regions CA1 and subiculum, as derived from extracellular electrophysiological recording of neurons in these regions in freely behaving rodents.
Colin Lever
wiley   +1 more source

A Strategy for Imidazotetrazine Prodrugs with Anti-cancer Activity Independent of MGMT and MMR [PDF]

open access: yes, 2012
The imidazotetrazine ring is an acid-stable precursor and prodrug of highly-reactive alkyl diazonium ions. We have shown that this reactivity can be managed productively in an aqueous system for the generation of aziridinium ions with 96% efficiency. The
Hartley, J.A.   +23 more
core   +1 more source

Demonstration of 3D‐Printed Optical Antennas for High‐Speed Optical Wireless Communication Using Market‐Ready Materials

open access: yesAdvanced Materials Technologies, Volume 11, Issue 1, 8 January 2026.
The feasibility of 3D‐printed optical antennas using commercial, non‐optical materials for Optical Wireless Communications (OWC) is demonstrated. This study combines spectral analysis, anisotropy effects, and telecom‐relevant optical measurements, revealing promising performance and novel insights for low‐cost, customizable photonic components in ...
Mauro Aresti   +6 more
wiley   +1 more source

PSO Algorithm on PAPR Reduction Performance of Asymmetrically Clipped Optical‐OFDM

open access: yesApplied Computational Intelligence and Soft Computing, Volume 2026, Issue 1, 2026.
This research presents a novel hybrid optimization framework combining artificial neural networks (ANN) and particle swarm optimization (PSO) to mitigate the high peak‐to‐average power ratio (PAPR) in asymmetrically clipped optical‐orthogonal frequency division multiplexing (ACO‐OFDM) systems. While conventional PTS effectively reduces PAPR, it suffers
Hermansyah Alam   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy