Results 121 to 130 of about 851,079 (386)

Experimental and Numerical Investigations of Flat Approach Slab–Soil Interaction in Jointless Bridge

Applied Sciences
In jointless bridges, a grade flat approach slab (GFAS) with the same elevation as the pavement can transfer the girder’s longitudinal deformation to the backfill.
Yufeng Tang, Bruno Briseghella, Junqing Xue, Camillo Nuti, Fuyun Huang   +4 more
doaj   +1 more source

Flat lens without optical axis: Theory of imaging

, 2005
We derive a general theory for imaging by a flat lens without optical axis. We show that the condition for imaging requires a material having elliptic dispersion relations with negative group refraction, equivalent to an effective anisotropic refractive ...
Lu, W. T., Sridhar, S.
core   +1 more source

A New Family of Ternary Intermetallic Compounds with Dualistic Atomic Ordering – The ZIP Phases

Advanced Materials, EarlyView.
The ZIP phases are ternary intermetallic compounds with dualistic atomic ordering, i.e., they exhibit one face‐centered cubic (fcc; space group Fd3¯$\bar 3$m) variant and one hexagonal (space group P63/mmc) variant. The ZIP phases in the Nb‐Si‐Ni system are the Nb3SiNi2 (fcc) and Ni3SiNb2 (hexagonal) ternary IMCs, crystal structure schematics of which ...
Matheus A. Tunes, Sean M. Drewry, Franziska Schmidt, James A. Valdez, Matthew M. Schneider, Caitlin A. Kohnert, Tarik A. Saleh, Saryu Fensin, Stuart A. Maloy, Cláudio G. Schön, Sylvain Dubois, Omri Tabo, Anna Eyal, Amit Keren, Asaf Pesach, Ganesh K. Nayak, Stavros‐Richard G. Christopoulos, Marco Molinari, Marcus Hans, Nick Goossens, Shuigen Huang, Jochen M. Schneider, Per O. Å. Persson, Jozef Vleugels, Konstantina Lambrinou   +24 more
wiley   +1 more source

Wave scattering by metamaterial wedges and interfaces

, 2005
We outline specific features of numerical simulations of metamaterial wedges and interfaces. We study the effect of different positioning of a grid in the Yee method, which is necessary to obtain consistent convergence in modeling of interfaces with ...
Bayindir, Boardman, Cummer, Fang, Feise, Hadley, Markos, Markos, Meixner, Mur, Parazzoli, Pendry, Pendry, Pendry, Podolskiy, Rao, Shadrivov, Smith, Smith, Taflove, Venema, Veselago, Yee, Yeh, Zharova, Ziolkowski   +25 more
core   +1 more source

Tracing Geophysical Indicators of Fluid‐Induced Serpentinization in the Pampean Flat Slab of Central Chile

Geochemistry Geophysics Geosystems, 2019
An apparent gap in the Andean volcanic arc in the Pampean section of the subduction zone in Chile (~28°–33°S) marks a section of flat slab subduction.
A. Nikulin, J. Bourke, J. Domino, J. Park   +3 more
semanticscholar   +1 more source

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

Advanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora, Seung Ju Choi, Jaeki Jeong, Silvia Orecchio, Inés García‐Benito, Manuel Pérez‐Escribano, Joaquín Calbo, Likai Zheng, Minseop Byun, Seyeong Song, Gi‐Hwan Kim, Shaik M. Zakeeruddin, Seog‐Young Yoon, Yimhyun Jo, Agustín Molina‐Ontoria, Enrique Ortí, Nazario Martín, Michael Grätzel   +17 more
wiley   +1 more source

Enhancement of punching shear strength of flat slabs using shear-band reinforcement

HBRC Journal, 2018
Flat-slab system is widely used nowadays. Major and critical problem of this system is its sudden brittle failure is called punching shear failure. To overcome the punching failure problem, there are many ways to increase the punching shear strength of ...
Nasr Z. Hassan, Mostafa A. Osman, Awad M. El-Hashimy, Heba K. Tantawy   +3 more
doaj   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Three-dimensional analysis of the surface mode supported in \v{C}erenkov and Smith-Purcell free-electron lasers

, 2016
In \v{C}erenkov and Smith-Purcell free-electron lasers (FELs), a resonant interaction between the electron beam and the co-propagating surface mode can produce copious amount of coherent terahertz (THz) radiation.
Kalkal, Yashvir, Kumar, Vinit
core   +2 more sources

Performance of Reinforced Concrete Flat Slab Strengthened with CFRP for Punching Shear

Case Studies in Construction Materials, 2022
H. H. Ghayeb, R. Atea, Muslim A. Al-Kannoon, F. Lee, Leong Sing Wong, K. Mo   +5 more
semanticscholar   +1 more source