Results 41 to 50 of about 347,005 (294)

SIMULTANEOUS MEASUREMENT OF OPTICAL AND DYNAMIC MECHANICAL PROPERTIES OF PLASTIC OPTICAL FIBERS [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2010
Dynamic mechanical analysis (DMA) is one of the most powerful tools to study the behavior of plastic and polymer composite materials and it is a potentially very useful tool to simulate behavior of plastic optic fibers (POF) in real appli¬cations.
SALAH S. MUSBAH, LJILJANA M. BRAJOVIĆ
doaj  

Large Amplitude Oscillatory Shear of the Prandtl Element Analysed by Fourier Transform Rheology

open access: yesApplied Rheology, 2014
This work contributes to the theory of strain controlled large amplitude oscillatory shear (LAOS) as well as modelling the key properties of type III behavior of Hyun, the decreasing storage modulus and a loss modulus with considerable maximum.
Boisly Martin   +3 more
doaj   +1 more source

Electrochemical Evaluation of Compressed Selective Laser Melted AlSi7Mg and AlSi10Mg Alloys in Chloride Environment

open access: yesAdvanced Engineering Materials, EarlyView.
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin   +2 more
wiley   +1 more source

The Effect of Residual Stress on Coupling Power Loss of VCSEL Modulus [PDF]

open access: yesInternational Journal of Advanced Network, Monitoring and Controls, 2016
Abstract In this article, the effect of residual stress on active region misalignment of laser light sources for vertical cavity surface emitting laser (VCSEL) modulus has been studied. The post-weld-shift variation of active region introduced from the residual stress distribution variation for different VCSEL solder joints, i.e.
Kuang, Jao-Hwa   +3 more
openaire   +1 more source

Monitor for physical property changes in solid propellants [PDF]

open access: yes, 1973
Specially designed sensor is attached to or imbedded in propellant. When sensor is driven into vibration, it moves with a phase lag directly proportional to internal friction or loss coefficent.
Black, R. E., Jr.
core   +1 more source

Measurements of mechanical thermal noise and energy dissipation in optical dielectric coatings [PDF]

open access: yes, 2014
In recent years an increasing number of devices and experiments are shown to be limited by mechanical thermal noise. In particular sub-Hertz laser frequency stabilization and gravitational wave detectors, that are able to measure fluctuations of 1E-18 m ...
Bellon, Ludovic   +12 more
core   +5 more sources

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

Study of Dynamic Viscoelasticity of a Mineral Oil-Based Magnetic Fluid

open access: yesMagnetochemistry, 2023
Magnetic fluid is a field-responsive intelligent fluid, which has the flow characteristics of liquid and the elastic properties of solid. Because of its unique properties, it has a strong application prospect in the fields of magnetic soft robot ...
Zhanxian Li   +6 more
doaj   +1 more source

Pressure loss modulus for correlation of steady state Delta p across uniformly distributed-loss devices [PDF]

open access: yes30th Joint Propulsion Conference and Exhibit, 1994
A dimensionless group, called a Pressure Loss Modulus (N{sub PL}), is introduced which, in conjunction with an appropriately defined Reynolds number, is of considerable engineering utility in correlating steady-state {Delta}P vs. flow calibration data and subsequently as a predictor, using the same or a different fluid, in uniformly distributed ...
openaire   +1 more source

Berry's Phase in the Presence of a Dissipative Medium [PDF]

open access: yes, 2001
We consider the spin 1/2 model coupled to a slowly varying magnetic field in the presence of a weak damping represented by a Lindblad-form operators. We show that Berry's geometrical phase remains unaltered by the two dissipation mechanism considered ...
A.C.Aguiar Pinto   +23 more
core   +3 more sources

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