Results 71 to 80 of about 60,715 (277)

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

Advanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang, Max Gießübel, Pankaj Dharpure, Andrea Albert, Vira Niestierkina, Paul Mulvaney, Mukundan Thelakkat, Jürgen Köhler   +7 more
wiley   +1 more source

Photocatalytic Versus Stoichiometric Hydrogen Generation Using Mesoporous Silicon Catalysts: The Complex Role of Sacrificial Reagents

Advanced Functional Materials, EarlyView.
This study highlights the importance of accounting for stoichiometric hydrogen produced when utilizing Si photocatalysts. The stoichiometric contribution is sacrificial reagent dependent and decreases with increasing sterics around the catalyst surface.
Sarrah H. Putwa, Sarah A. Martell, Berthold Reis, Simona Schwarz, Mita Dasog   +4 more
wiley   +1 more source

Examining the dependence of southward shift of westerly anomalies on El Niño intensity: implications for varied El Niño termination patterns

Frontiers in Earth Science
The dependence of the southward shift of low-level westerly anomalies over the equatorial central Pacific on El Niño intensity during the mature winter was investigated through observational analyses and air–sea coupled model simulations.
Yifan Jia, Ruihuang Xie, Ruihuang Xie
doaj   +1 more source

No Lambda oscillations

, 1996
We examine a recently published calculation which predicts an oscillatory behaviour for the decay of Lambdas produced together with a neutral kaon, and proposes a new expression for the wavelength of kaon strangeness oscillations.
Bassalleck, B., Burkhardt, H., Goldman, T., Lowe, J., Rusek, A., Stephenson Jr., G. J.   +5 more
core   +2 more sources

Supraparticles Composed of Graphitic Carbon Nitride Nanoparticles and Silica‐Supported Horseradish Peroxidase as Customizable Hybrid Catalysts for Photo‐Biocatalytic Cascade Reactions in Continuous Flow

Advanced Functional Materials, EarlyView.
Herein presented supraparticles combine the nanoparticulate photocatalyst graphitic carbon nitride with the enzyme horseradish peroxidase, which is immobilized on silica nanoparticles. In an optimized compatibility range, both catalysts operate effectively within the hybrid supraparticles and catalyze a cascade reaction consisting of the photocatalytic
Bettina Herbig, Egzon Cermjani, Doris Hanselmann, Johannes Prieschl, Angelika Schmitt, Michael S. Moritz, Christian Papp, Greta Nölke, Stefano Di Fiore, Christoph Deckers, Thomas H. Rehm, Susanne Wintzheimer   +11 more
wiley   +1 more source

A semantic web service-based architecture for the interoperability of e-government services [PDF]

, 2005
We propose a semantically-enhanced architecture to address the issues of interoperability and service integration in e-government web information systems. An architecture for a life event portal based on Semantic Web Services (SWS) is described.
Cabral, L., Davies, R., Domingue, J., Gugliotta, A., Roberto, V., Rowlatt, M.   +5 more
core   +1 more source

GeAl2‐2xFe2xO3(OH)4 Nanotubes: New Electrocatalyst for Oxygen Evolution Reaction

Advanced Functional Materials, EarlyView.
Fe‐doped imogolite nanotubes are synthesized via a one‐step hydrothermal method with varying Fe substitution ratios x. Structural and spectroscopic analyses confirm homogeneous Fe incorporation while preserving tubular shape. Optimal doping at x = 0.05 enhances optical absorption, narrows band gap, reduces charge transfer resistance, and significantly ...
Yassine Naciri, Jian Li, Wahid Ullah, Fabien Baron, Franck Bourdelle, Stéphan Rouzière, Claire Goldmann, Erik Elkaim, Thomas Bizien, Rachid Belkhou, Delphine Vantelon, Mohamed Nawfal Ghazzal, Erwan Paineau   +12 more
wiley   +1 more source

Elasticity and cross-sectional thickness of paraspinal muscles in progressive adolescent idiopathic scoliosis

Frontiers in Pediatrics
Objectives(1) Compare the cross-sectional thickness (CST) and shear wave speed (SWS) of paraspinal muscles (PSM) in adolescent idiopathic scoliosis (AIS) with and without curve progression; (2) investigate the relationship between CST/SWS and ...
Yunli Fan, Yunli Fan, Haiping Zheng, Lin Feng, Michael K. T. To, Michael K. T. To, Guan-Ming Kuang, Eric H. K. Yeung, Kenneth M. C. Cheung, Kenneth M. C. Cheung, Li Liu, Jason P. Y. Cheung, Jason P. Y. Cheung   +12 more
doaj   +1 more source

Effects of different climatic conditions on soil water storage patterns [PDF]

Hydrology and Earth System Sciences
The soil water storage (SWS) defines the crop productivity of a soil and varies under different climatic conditions. Pattern identification and quantification of these variations in SWS remain difficult due to the non-linear behaviour of SWS ...
A. Ehrhardt, A. Ehrhardt, J. Groh, J. Groh, J. Groh, H. H. Gerke   +5 more
doaj   +1 more source

Towards adaptive e-learning applications based on Semantic Web Services [PDF]

, 2007
The current state of the art in supporting E-Learning objectives is primarily based on providing a learner with learning content by using metadata standards like ADL SCORM 2004 or IMS Learning Design.
Dietze, Stefan, Domingue, John, Gugliotta, Alessio   +2 more
core