Results 141 to 150 of about 40,507 (308)
Anomalous dispersion and negative group velocity in a coherence-free cold atomic medium
, 2008 We have observed the propagation of an approximately 35 ns long light pulse with a negative group velocity through a laser-cooled Rb-85 atomic medium, The anomalous dispersion results from linear atom-light interaction and is unrelated to long-lived ...
Alexandre Akoulchine (18924064) +4 more
core +1 more source
A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data
Advanced Engineering Materials, EarlyView.Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov +4 more
wiley +1 more source
APL PhotonicsOptical fibers serve not only as optical waveguides but also as acoustic waveguides, a dual functionality stemming from their structural properties and further enhanced by doping techniques.
Juntong Yang +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley +1 more source
Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
Asymmetric Group Velocity Dispersion and Pulse Distortion in a Uniform Fiber Bragg Grating [PDF]
, 2008 In a uniform fiber Bragg grating, if the input signal is a Gaussian pulse the dispersion is zero near center wavelength and becomes appreciable only near the band edges and side lobes of the reflection spectrum. However for chirped Gaussian pulses, group
Raghuwanshi, Sanjeev Kumar +1 more
core
Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A
Advanced Engineering Materials, EarlyView.The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han +5 more
wiley +1 more source
Amplification of solitary optical waves in fibers with positive group velocity dispersion
Open Physics, 2007 Arabadzhiev Todor, Uzunov Ivan
doaj +1 more source
Pulse-shaping assisted nonlinear optical signal generation in fibres
, 2013 This thesis investigates pulse-shaping assisted nonlinear optical signal generation in fibers. A linear pulse shaping stage is included in nonlinear fibre optic systems to achieve flexible and precise control over the characteristics of the output signal.
Yang, Xin
core