Results 121 to 130 of about 3,319,079 (328)
A multi-parameter control of track geometry and melt pool size for laser metal deposition
, 2020 The present work demonstrates a multi-parameter control for constant track geometry and consistent layer height in laser metal deposition process. A two-channel pyrometric camera is used to maintain a constant melt pool size by a laser power control ...
D. Tyralla +4 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Establishment of Track Quality Index Standard Recommendations for Beijing Metro
Discrete Dynamics in Nature and Society, 2015 Since 2007, Beijing Metro started to use track geometry car to measure quality of its tracks under wheel loading conditions. The track quality measurement data from the track geometry car were only used to assess local track quality by means of scoring ...
Reng-Kui Liu +4 more
doaj +1 more source
Effect of Annular Laser Metal Deposition (ALMD) Process Parameters on Track Geometry and Thermal History on Ti6Al4V Alloy Clad. [PDF]
Materials (Basel), 2023 Zhang J +5 more
europepmc +1 more source
Track stiffness and the vertical track geometry deterioration modeling [PDF]
, 2012 Krutost šinske podloge je osnovni parametar konstrukcije gornjeg i donjeg stroja železničke pruge koji utiče na nosivost, dinamičko ponašanje vozila, kvalitet geometrije koloseka i vek trajanja elemenata konstrukcije. U radu se krutost šinske podloge razmatra sa aspekta modeliranja propadanja vertikalne geometrije koloseka.
Milosavljević, Leposava +2 more
openaire +1 more source
Diffusion maps for changing data
, 2013 Graph Laplacians and related nonlinear mappings into low dimensional spaces have been shown to be powerful tools for organizing high dimensional data. Here we consider a data set X in which the graph associated with it changes depending on some set of ...
Abdallah +22 more
core +1 more source
Advanced Functional Materials, EarlyView.Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco +8 more
wiley +1 more source
ُSome Remarks on Modern Track Geometry Maintenance [PDF]
International Journal of Railway Research, 2018 A short survey on modern track maintenance methods is given, concentrating on the developments in recent years. The ongoing refinement of the machinery should be shown as the influence of IT-solutions. On top the economic view to the track infrastructure
Klaus Riessberger
doaj
On the need to complement the norms on easement for gauge width
Вестник Научно-исследовательского института железнодорожного транспорта, 2017 The current evaluation system of track geometry provides supervision of standards for graduation of the gauge and speed limits at excess of allowable values.
V. O. Pevzner +2 more
doaj +1 more source
Tire track geometry: Variations on a theme [PDF]
Israel Journal of Mathematics, 2006 We study closed smooth convex plane curves $ $ enjoying the following property: a pair of points $x,y$ can traverse $ $ so that the distances between $x$ and $y$ along the curve and in the ambient plane do not change; such curves are called {\it bicycle curves}.
openaire +3 more sources