Search
Results: 78773
Boundary-layer analysis of a pile-up of walls of edge dislocations at a lock
In this paper we analyse the behaviour of a pile-up of vertically periodic walls of edge dislocations at an obstacle, represented by a locked dislocation wall. Starting from a continuum non-local energy modelling the...
Boundary-layer analysis of a pile-up of walls of edge dislocations at a lock
In this paper we analyse the behaviour of a pile-up of vertically periodic walls of edge dislocations at an obstacle, represented by a locked dislocation wall. Starting from a continuum non-local energy modelling the...
LED optical excitation for the long pulse and lock-in thermographic techniques
High power light emitting diode (LED) arrays have been investigated as excitation sources for long pulse and lock-in thermography. Images of artificial defects in a carbon fibre reinforced plastic (CFRP) composite sample are...
A comparison of the pulsed, lock-in and frequency modulated thermography nondestructive evaluation techniques
Pulsed, lock-in and frequency modulated thermography are three alternative nondestructive evaluation techniques. The defect imaging performance of these techniques are compared using: matched excitation energy; the same carbon...
A comparison of the pulsed, lock-in and frequency modulated thermography nondestructive evaluation techniques
Pulsed, lock-in and frequency modulated thermography are three alternative nondestructive evaluation techniques. The defect imaging performance of these techniques are compared using: matched excitation energy; the same carbon...
Venereal Diseases, Prostitution and Lock Hospitals in 19th Century Awadh (Oudh)
Mumtaz Alam
Feb 19, 2020
This study focusses on lock hospitals, venereal diseases, soldiers and prostitutes in Awadh. The colonial administration implemented a policy to protect soldiers from sexually transmitted diseases. In the nineteenth century...
Published by: Department of History, University of Karachi
A modelling framework to assess the likely effectiveness of facemasks in combination with 'lock-down' in managing the COVID-19 pandemic.
Richard OJH Stutt, Renata Retkute, Michael Bradley, Christopher A Gilligan, John Colvin
Jul 06, 2020
COVID-19 is characterized by an infectious pre-symptomatic period, when newly infected individuals can unwittingly infect others. We are interested in what benefits facemasks could offer as a non-pharmaceutical intervention...
Competing Recombinant Technologies for Environmental Innovation
This article presents a model of sequential decisions about investments in environmentally dirty and clean technologies, which extends the path-dependence framework of B. Arthur (1989, Competing technologies, increasing returns...
LED optical excitation for the long pulse and lock-in thermographic techniques
High power light emitting diode (LED) arrays have been investigated as excitation sources for long pulse and lock-in thermography. Images of artificial defects in a carbon fibre reinforced plastic (CFRP) composite sample are...
Competing Recombinant Technologies for Environmental Innovation
This article presents a model of sequential decisions about investments in environmentally dirty and clean technologies, which extends the path-dependence framework of B. Arthur (1989, Competing technologies, increasing returns...
An objective comparison of pulsed, lock-in, and frequency modulated thermal wave imaging
An objective comparison of three different thermal non-destructive evaluation (NDE) techniques - pulsed thermography (PT), lock-in (LI) thermography, and frequency modulated thermal wave imaging (FMTWI), has been carried out on...
An objective comparison of pulsed, lock-in, and frequency modulated thermal wave imaging
An objective comparison of three different thermal non-destructive evaluation (NDE) techniques - pulsed thermography (PT), lock-in (LI) thermography, and frequency modulated thermal wave imaging (FMTWI), has been carried out on...
Single photon multiclock lock-in detection by picosecond timestamping
Extracting signals at low single-photon count rates from large backgrounds is a challenge in many optical experiments and technologies. Here, we demonstrate a single-photon lock-in detection scheme based on continuous...
Coarse-grained depletion potentials for anisotropic colloids
When a colloid is mixed with a depletant such as a non-adsorbing polymer, one observes attractive effective interactions between the colloidal particles. If these particles are anisotropic, analysis of these effective...
Self-assembly of colloidal polymers via depletion-mediated lock and key binding
We study the depletion-induced self-assembly of indented colloids. Using state-of-the-art Monte Carlo simulation techniques that treat the depletant particles explicitly, we demonstrate that colloids assemble by a lock-and-key...
A Model of Mass and Heat Transfer for Disc Temperature Prediction in Open Compressor Cavities
Accurate prediction of heat transfer in compressor cavities is crucial to the design of efficient and reliable aircraft engines. The heat transfer affects the thermal expansion of the compressor rotor and, in turn, the tip...
Coarse-grained depletion potentials for anisotropic colloids
When a colloid is mixed with a depletant such as a non-adsorbing polymer, one observes attractive effective interactions between the colloidal particles. If these particles are anisotropic, analysis of these effective...
Polarisation in spin-echo experiments
Anton Tamtögl, Benjamin Davey, David J Ward, Andrew P Jardine, John Ellis, William Allison
May 14, 2018
Spin-echo instruments are typically used to measure diffusive processes and the dynamics and motion in samples on ps and ns time scales. A key aspect of the spin-echo technique is to determine the polarisation of a particle...
A Model of Mass and Heat Transfer for Disc Temperature Prediction in Open Compressor Cavities
Accurate prediction of heat transfer in compressor cavities is crucial to the design of efficient and reliable aircraft engines. The heat transfer affects the thermal expansion of the compressor rotor and, in turn, the tip...
Self-assembly of colloidal polymers via depletion-mediated lock and key binding
We study the depletion-induced self-assembly of indented colloids. Using state-of-the-art Monte Carlo simulation techniques that treat the depletant particles explicitly, we demonstrate that colloids assemble by a lock-and-key...
Steady computations of ingress through gas turbine rim seals
In gas turbines, rim seals are fitted at the periphery of the wheel-space between the turbine disc and its adjacent casing; their purpose is to reduce the ingress of hot mainstream gases. This paper describes the use of a...
Steady computations of ingress through gas turbine rim seals
In gas turbines, rim seals are fitted at the periphery of the wheel-space between the turbine disc and its adjacent casing; their purpose is to reduce the ingress of hot mainstream gases. This paper describes the use of a...
The UK great bustard <em>Otis tarda</em> reintroduction trial
The great bustard Otis tarda became extinct in the UK during the 19th century due to a combination of factors, including hunting, egg collection and changes in agriculture. In 2003 a 10-year licence was granted to begin a trial...
Conjugate Modeling of a Closed Co-Rotating Compressor Cavity
Robust methods to predict heat transfer are vital to accurately control the blade-tip clearance in compressors and the radial growth of the disks to which these blades are attached. Fundamentally, the flow in the cavity...
buoyancy-induced flow Computational Fluid Dynamics conjugate heat transfer Rotating cavity /dk/atira/pure/subjectarea/asjc/2200/2210 name=Mechanical Engineering /dk/atira/pure/subjectarea/asjc/2200/2202 name=Aerospace Engineering /dk/atira/pure/subjectarea/asjc/2100/2102 name=Energy Engineering and Power Technology /dk/atira/pure/subjectarea/asjc/2100/2103 name=Fuel Technology /dk/atira/pure/subjectarea/asjc/2100/2104 name=Nuclear Energy and Engineering
Investigation of Reverse Swing and Magnus Effect on a Cricket Ball Using Particle Image Velocimetry
Lateral movement from the principal trajectory, or “swing”, can be generated on a cricket ball when its seam, which sits proud of the surface, is angled to the flow. The boundary layer on the two hemispheres divided by the seam...
|
|< |
< |
1 |