Results 71 to 80 of about 2,598,112 (267)

High‐Resolution Corrosion Fingerprinting of Alloy Libraries via Microdroplet Spectroelectrochemistry

Advanced Engineering Materials, EarlyView.
Ionic‐liquid microdroplet spectroelectrochemistry enables stable, localized electrochemical measurements over extended timescales. By coupling impedance spectroscopy, wetting analysis, finite‐element simulations, and operando Raman spectroscopy, it disentangles geometrical and electrochemical effects, opening new opportunities for rapid corrosion ...
Ekaterina Kurchavova, Oumaïma Gharbi, Mireille Turmine, Vincent Vivier   +3 more
wiley   +1 more source

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

Strontium optical lattice clocks for practical realization of the metre and secondary representation of the second

, 2015
We present a system of two independent strontium optical lattice standards probed with a single shared ultranarrow laser. The absolute frequency of the clocks can be verified by the use of Er:fiber optical frequency comb with the GPS-disciplined Rb ...
Ciuryło, Roman, Zachorowski, Jerzy, Ozimek, Filip, Zawada, Michał, Radzewicz, Czesław, Ablewski, Piotr, Lisak, Daniel, Trawiński, Ryszard S., Gawlik, Wojciech, Piotrowski, Marcin, Cygan, Agata, Bartoszek-Bober, Dobrosława, Masłowski, Piotr, Piwiński, Mariusz, Bober, Marcin, Wójtewicz, Szymon, Wcisło, Piotr, Bielska, Katarzyna, Morzyński, Piotr, Prymaczek, Mateusz   +19 more
core   +1 more source

Hanle Detection for Optical Clocks

The Scientific World Journal, 2015
Considering the strong inhomogeneous spatial polarization and intensity distribution of spontaneous decay fluorescence due to the Hanle effect, we propose and demonstrate a universe Hanle detection configuration of electron-shelving method for optical ...
Xiaogang Zhang, Shengnan Zhang, Duo Pan, Peipei Chen, Xiaobo Xue, Wei Zhuang, Jingbiao Chen   +6 more
doaj   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source

International comparison of optical frequencies with transportable optical lattice clocks [PDF]

Optical clocks have improved their frequency stability and estimated accuracy by more than two orders of magnitude over the best caesium microwave clocks that realise the SI second.
Tønnes, Mads, Amy-Klein, Anne, Gill, Patrick, Blondé, Pascal, Clock, International, Lopez, Olivier, Nosske, Ingo, Vishwakarma, Chetan, Kale, Yogeshwar B, Dörscher, Sören, Mukherjee, Shambo, Klose, Joshua, Benkler, Erik, Katori, Hidetoshi, Kuhl, Alexander, Targat, Rodolphe Le, Lücke, Tim, Mazouth, Maxime, Gaudron, Jacques-Olivier, Hill, Ian R, Lisdat, Christian, Cantin, Etienne, Bongs, Kai, Stahl, Kilian, Ushijima, Ichiro, Takamoto, Masao, Tunesi, Jacob, Singh, Yeshpal, Johnson, Matthew Y H, Feng, Chen-Hao, Schioppo, Marco, Collaboration, Huang, Wei, Pottie, Paul-Eric, :, Denker, Heiner, Networking, Oscillator, Chardonnet, Christian, Kronjäger, Jochen, Pointard, Benjamin   +39 more
core   +2 more sources

Lattice-induced photon scattering in an optical lattice clock [PDF]

Physical Review A, 2018
We investigate scattering of lattice laser radiation in a strontium optical lattice clock and its implications for operating clocks at interrogation times up to several tens of seconds. Rayleigh scattering does not cause significant decoherence of the atomic superposition state near a magic wavelength.
Dörscher, Sören, Schwarz, Roman, Al-Masoudi, Ali, Falke, Stephan, Sterr, Uwe, Lisdat, Christian   +5 more
openaire   +2 more sources

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

Advanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees, Timothy Harte, Bhagya Dharmasiri, Y. Athulya Wickramasingha, David J. Hayne, Daniel J. Eyckens, Luke C. Henderson   +6 more
wiley   +1 more source

A C0(_2) laser lattice experiment for cold atoms [PDF]

, 2007
This thesis presents work on a laser cooling experiment designed for trapping Rb atoms in a CO(_2) laser optical trap. Some emphasis is placed on experimental features designed to allow the future implementation of a neutral atom quantum computation ...
Weatherill, Kevin J.
core  

An Explicit Constitutive Reconstruction Framework for Mechanical Characterization of Miniaturized 3D‐Printed Specimens

Advanced Engineering Materials, EarlyView.
An explicit constitutive reconstruction framework enables accurate tensile characterization of miniaturized additively manufactured specimens using only the grip‐to‐grip displacement measurements. Progressive validation through self‐consistency, analytical comparison, and inverse finite element method (iFEM) benchmarking demonstrates constitutive ...
Junqing Leng, Caralyn Collins, Pengpeng Zhang, Joanna Zhang, Cheng Sun   +4 more
wiley   +1 more source