Results 71 to 80 of about 408,529 (289)

An Ontology‐Augmented Digital Twin for Fiber‐Reinforced Polymer Structures at the Example of Wind Turbine Rotor Blades

open access: yesAdvanced Engineering Materials, EarlyView.
A methodology for establishing an ontology‐augmented structural digital twin for fiber‐reinforced polymer structures dedicated to individual lifetime prediction, in this case, a wind turbine rotor blade, is introduced. The methodology resembles the manufacturing as well as the operation of the structure.
Marc Luger   +6 more
wiley   +1 more source

trans-Dibromidotetrakis(pyridine-κN)ruthenium(II)

open access: yesActa Crystallographica Section E, 2013
The title complex, [RuBr2(C5H5N)4], contains two independent complex molecules in each of which the RuII atom is located on a site of 222 symmetry and has a distorted octahedral coordination geometry with four pyridine N atoms and two Br atoms.
Xiu-Li Wu   +4 more
doaj   +1 more source

Ontologies for FAIR Data in Additive Manufacturing: A Use Case‐Based Evaluation

open access: yesAdvanced Engineering Materials, EarlyView.
An ontology‐based approach for generating findable, accessible, interoperable, reusable data in additive manufacturing is explored, focusing on powder bed fusion. The article highlights the benefits of enhanced data findability and digital twin enablement, while addressing challenges like data integration complexity and the need for specialized ...
Thomas Bjarsch   +2 more
wiley   +1 more source

Laser Powder Bed Fusion of Pure Zinc Electrodes for the Manufacturing of Biodegradable Batteries: Process Development and Preliminary Electrochemical Testing

open access: yesAdvanced Engineering Materials, EarlyView.
The additive manufacturing technology laser powder bed fusion enables the manufacturing of pure Zn thin walls as battery electrodes. Modification of the laser beam parameters allows to tailor the physical characteristics of the as‐deposited thin walls.
Leonardo Caprio   +3 more
wiley   +1 more source

Di-μ-sulfato-bis{[bis(3,5-dimethylpyrazol-1-yl)methane]copper(II)}

open access: yesActa Crystallographica Section E, 2008
The molecule of the title compound, [Cu2(SO4)2(C11H16N4)2], sits on a center of symmetry. The CuII atom has a distorted trigonal–bipyramidal coordination geometry comprising three O atoms of the two symmetry-related SO42− anions and two N ...
XiuLi You, XingCong Wang, YanLi Wu
doaj   +1 more source

Group Analysis of Born-Infeld Equation [PDF]

open access: yesarXiv, 2010
Lie symmetry group method is applied to study the Born-Infeld equation. The symmetry group and its optimal system are given, and group invariant solutions associated to the symmetries are obtained. Finally the structure of the Lie algebra symmetries is determined.
arxiv  

Mechanical Metamaterials for Bioengineering: In Vitro, Wearable, and Implantable Applications

open access: yesAdvanced Engineering Materials, EarlyView.
Mechanical metamaterials with engineered architectures exhibit properties that differ from and greatly surpass those of their constituent bulk materials. This review summarizes the applications of mechanical metamaterials in bioengineering, focusing on advances in the last 5 years.
Madihah Kazim   +2 more
wiley   +1 more source

Tetrakis(1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidin-9-ido-κ2N1,N9)niobium(V) hexafluoridophosphate

open access: yesActa Crystallographica Section E, 2008
The title complex, [Nb(C7H12N3)4]PF6, features chelating hpp anions (hpp is 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidine) that define a distorted dodecahedral coordination geometry based on an N8 donor set.
Edward R. T. Tiekink   +4 more
doaj   +1 more source

Mechanisms of De‐icing by Surface Rayleigh and Plate Lamb Acoustic Waves

open access: yesAdvanced Engineering Materials, EarlyView.
Ice accretion impacts daily life, renewable energy generation, maintenance, and security in industries and aeronautics. Acoustic waves (AW) are a promising method for ice removal, although de‐icing mechanisms require further investigation to optimize energy efficiency.
Shilpi Pandey   +15 more
wiley   +1 more source

The General Linear Cartan Khronon

open access: yesUniverse, 2019
A Cartan geometry of the General Linear symmetry is formulated by dividing out the displacements from the group. The resulting action is quadratic in curvature, polynomial in all the (minimal) variables, and describes an observer space that—in the ...
Tomi Koivisto   +2 more
doaj   +1 more source

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