Results 131 to 140 of about 3,319,079 (328)

Evaluating railway track support stiffness from trackside measurements in the absence of wheel load data

, 2016
It is generally accepted that track support stiffness is a major factor controlling rates of track geometry deterioration, particularly where the track support stiffness changes abruptly.
Le Pen, Louis, Milne, David, Powrie, William, Thompson, David   +3 more
core   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Reference Values for Railway Sidings Track Geometry

Transportation Research Procedia, 2016
AbstractRailway sidings are operated at speeds much lower than those used on national railway lines; a typical speed is 6km/h. In establishing reference values for maintenance of railway infrastructure in terms of the geometry for such operating conditions, it is noted that both national and European regulations do not provide specific information ...
LICCIARDELLO, Riccardo, MALAVASI, Gabriele, TIERI, ANTONIO, VITALI, PIETRO   +3 more
openaire   +2 more sources

Friction, wear, transfer and wear surface morphology of ultra-high-molecular-weight polyethylene [PDF]

Tribological studies at 25 C in a 50-percent-relative-humidity air atmosphere were conducted using hemispherically tipped 440 C HT (high temperature) stainless steel pins sliding against ultra-high-molecular-weight polyethylene (UHMWPE) disks.
Fusaro, R. L.
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

On the complexity of braids [PDF]

, 2006
We define a measure of "complexity" of a braid which is natural with respect to both an algebraic and a geometric point of view. Algebraically, we modify the standard notion of the length of a braid by introducing generators $\Delta\_{ij}$, which are ...
Dynnikov, Ivan, Wiest, Bert
core   +2 more sources

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

Advanced 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, Thierry Roland, Damien Favier, Antoine Egele, Michael Heymann, Cosima Stubenrauch   +5 more
wiley   +1 more source

Generalizing mkFit and its Application to HL-LHC [PDF]

EPJ Web of Conferences
mkFit is an implementation of the Kalman filter-based track reconstruction algorithm that exploits both threadand data-level parallelism. In the past few years the project transitioned from the R&D phase to deployment in the Run-3 offline workflow of the
Cerati Giuseppe, Elmer Peter, Gartung Patrick, Giannini Leonardo, Kortelainen Matti, Krutelyov Vyacheslav, Lantz Steven, Masciovecchio Mario, Reid Tres, Reinsvold Hall Allison, Riley Daniel, Tadel Matevž, Vourliotis Emmanouil, Wittich Peter, Yagil Avi   +14 more
doaj   +1 more source

Toward an object-based semantic memory for long-term operation of mobile service robots [PDF]

, 2010
Throughout a lifetime of operation, a mobile service robot needs to acquire, store and update its knowledge of a working environment. This includes the ability to identify and track objects in different places, as well as using this information for ...
Cielniak, Grzegorz, Dayoub, Feras, Duckett, Tom   +2 more
core   +2 more sources

Advancing In Situ Modeling of ICMEs: New Techniques for New Observations

, 2012
It is generally known that multi-spacecraft observations of interplanetary coronal mass ejections (ICMEs) more clearly reveal their three-dimensional structure than do observations made by a single spacecraft.
Abraham-Shraunner, Al-Haddad, Burlaga, Burlaga, Burlaga, Chanteur, Chanteur, Cid, De Hoffmann, Farrugia, Goldstein, Gopalswamy, Gopalswamy, Gosling, Gosling, Hidalgo, Hu, Hu, Isavnin, Jian, Kaiser, Khrabov, Kilpua, Kilpua, Lepping, Lepping, Li, Liu, Liu, Lundquist, Marubashi, Marubashi, Mulligan, Mulligan, Möstl, Möstl, Nelder, Neugebauer, Owens, Owens, Paschmann, Reinard, Reinard, Richardson, Riley, Riley, Riley, Russell, Russell, Schwartz, Sibson, Sonnerup, Terasawa, Török, Wang, Zurbuchen   +55 more
core   +1 more source