Results 141 to 150 of about 2,128,044 (322)

Testing for nonlinearity in time series: the method of surrogate data

open access: yes, 1992
James Theder   +4 more
semanticscholar   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

open access: yesAdvanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey   +12 more
wiley   +1 more source

Dynamic Performance of Concrete Considering Initial Stresses and Creep

open access: yesЖелезобетонные конструкции
In accidental design situations, the loading mode of reinforced concrete structures includes two typical stages such as long-term deformation under constant or slowly varying load and dynamic impact.
S. Yu. Savin, M. Z. Sharipov
doaj   +1 more source

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

open access: yesAdvanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu   +9 more
wiley   +1 more source

Controlling light with light in a plasmonic nanooptomechanical metamaterial

open access: yes
We demonstrate metamaterial with a cubic optical nonlinearity that is ten orders of magnitude greater than the reference nonlinearity of CS2. The nonlinearity has optomechanical nature and is underpinned by light-induced electromagnetic near-field ...
Ou, J-Y.   +3 more
core  

Mechanical Properties of Architected Polymer Lattice Materials: A Comparative Study of Additive Manufacturing and CAD Using FEM and µ‐CT

open access: yesAdvanced Functional Materials, EarlyView.
This study examines how pore shape and manufacturing‐induced deviations affect the mechanical properties of 3D‐printed lattice materials with constant porosity. Combining µ‐CT analysis, FEM, and compression testing, the authors show that structural imperfections reduce stiffness and strength, while bulk material inhomogeneities probably enhance ...
Oliver Walker   +5 more
wiley   +1 more source

Nonlinear Adaptive Control of Maglev System Based on Parameter Identification

open access: yesActuators
To address the nonlinearity and control problems of the Maglev system caused by external disturbances and internal factors of the system, this study first established a kinematic model of a single-point levitation system. Secondly, based on the nonlinear
Haiyan Qiang   +4 more
doaj   +1 more source

NONLINEAR OPTICS Nonlinear virtues of multimode fibre

open access: yes, 2015
The finding that multimode optical bres support a rich and complex mix of spatial and temporal nonlinear phenomena could yield a plethora of promising applications.
Picozzi, Antonio   +2 more
openaire   +1 more source

3D‐Printed Sulfur‐Derived Polymers With Controlled Architectures for Lithium‐Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Rheology‐guided formulation design for direct ink writing enables the fabrication of 3D sulfur copolymer cathodes with controlled architectures for lithium‐sulfur batteries. The printed electrodes exhibit multiscale porosity and high sulfur utilization, delivering enhanced electrochemical performance compared to conventional cast electrodes.
Bin Ling   +7 more
wiley   +1 more source

Nonlinear Multipoles [PDF]

open access: yesProceedings of the National Academy of Sciences, 1953
openaire   +3 more sources

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