Results 121 to 130 of about 803,745 (379)

Generation of Picosecond Laser Pulses at 1064 nm from All Solid-State Passively Mode-Locked Lasers [PDF]

open access: bronze, 2010
Do Quoc Khanh   +4 more
openalex   +1 more source

Characterization of Macro/Microstructure and Corrosion Resistance of Austenitic Gas Tungsten Arc Welding Cladding

open access: yesAdvanced Engineering Materials, EarlyView.
Cladding is a proven method that boosts the surface qualities of mechanical parts by applying a layer of more durable material over a base substrate. This work responds to the needs of offshore and pressure vessels sectors by focusing on cladding a super austenitic steel onto low‐carbon steel through gas tungsten arc welding.
E. J. da Cruz Junior   +6 more
wiley   +1 more source

Design of a Quantum Source of High-Frequency Gravitational Waves (HFGW) and Test Methodology

open access: yes, 2004
The generation of High-Frequency Gravitational Waves (HFGW) has been identified as the required breakthrough that will lead to new forms of space propulsion. Many techniques have been devised to generate HFGW, but most of them exhibit marginal efficiency,
Fontana, Giorgio
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced 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

High-Pressure Synthesis of a Pentazolate Salt

open access: yes, 2016
The pentazolates, the last all-nitrogen members of the azole series, have been notoriously elusive for the last hundred years despite enormous efforts to make these compounds in either gas or condensed phases.
Crowhurst, Jonathan C.   +5 more
core   +4 more sources

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

Modification of the Surface Layer of Grey Cast Iron by Laser Heat Treatment

open access: yesLubricants
This paper presents possible modifications to the properties of grey cast iron by laser heat treatment. These modifications are analyzed especially with regard to wear properties as a result of graphite content, which is a well-known solid lubricant ...
Marta Paczkowska
doaj   +1 more source

Effect of Specimen Size on Laser Scribing Width and Depth of Al2O3 Ceramics: Experiment and Numerical Simulation

open access: yesMATEC Web of Conferences, 2016
To obtain high precision and quality of laser ceramic scribing , people should consider the laser scribing parameters and the geometries of specimen size.
Wang Shu, Huang Kaijin, Tang Lin
doaj   +1 more source

Preparation and decay of a single quantum of vibration at ambient conditions

open access: yes, 2019
A single quantum of excitation of a mechanical oscillator is a textbook example of the principles of quantum physics. Mechanical oscillators, despite their pervasive presence in nature and modern technology, do not generically exist in an excited Fock ...
Anderson, Mitchell D.   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy