Results 51 to 60 of about 119,019 (262)

Spatial hydrological flow processes, water quality and vegetation community distributions in a natural floodplain fen

open access: yes, 2016
We studied spatial patterns in inundation water quality in a floodplain fen in Poland, resulting from interacting hydrological flow processes. Using PCA and K-means cluster analysis, we identified four clearly distinguishable water types, related to ...
Schot, P.P.   +5 more
core  

Twin Crystal Moiré Metasurfaces for Crossing Flat‐Band Transport

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces twin crystal moiré metasurfaces, breaking in‐plane symmetry to enable reconfigurable acoustic wave manipulation. By adjusting the twin angle and interlayer twist angle, various combinations of hyperbolic, flat bands, and elliptic states can be synthesized in the system.
Shida Fan   +9 more
wiley   +1 more source

An integrated framework to assess spatial and related implications of biomass delivery chains

open access: yes, 2011
The overall objective of the ME4 research project was to develop an integrated framework to assess and analyse the spatial implications and related opportunities and consequences of an increased implementation of biomass delivery chains for energy ...
Sanders, J.P.M.   +3 more
core  

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

open access: yesAdvanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll   +19 more
wiley   +1 more source

Spatial Relations, Minimum Bounding Rectangles, and Spatial Data Structures

open access: yes, 1997
Despite the attention that spatial relations have attracted in domains such as Spatial Query Languages, Image and Multimedia Databases, Reasoning and Geographic Applications, they have not been extensively applied in spatial access methods. This paper is
Yannis Theodoridis, Dimitris Papadias
core   +2 more sources

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

open access: yesAdvanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil   +14 more
wiley   +1 more source

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

open access: yesAdvanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro   +13 more
wiley   +1 more source

Spatial descriptions on a functional-geometric spectrum: the location of objects [Elektronisk resurs]

open access: yes, 2020
Experimental research on spatial descriptions shows that their semantics are dependent on several modalities, among others (i) a geometric representation of space ("where", geometric knowledge) and (ii) dynamic kinematic routines between objects that are
Dobnik, Simon,, Ghanimifard, Mehdi,
core   +1 more source

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