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Chapter and Conference Paper
Experimental Proof of Concept of Contact Pressure Distribution Control in Frictional Interfaces with Piezoelectric Actuators
Complex machinery holding several components in assembled structures requires a multitude of joints which inevitably develop frictional contacts under different dynamics conditions. Those conditions have been ...
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Chapter and Conference Paper
Tribomechadynamics Challenge 2021: A Multi-harmonic Balance Analysis from Imperial College London
This work presents the approach and results of the Dynamics Group at Imperial College in face of the Tribomechadynamics 2021 challenge. The challenge encourages to obtain the best blind prediction of a benchma...
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Article
Open AccessStrength of interference screw fixation of meniscus prosthesis matches native meniscus attachments
Meniscal surgery is one of the most common orthopaedic surgical interventions. Total meniscus replacements have been proposed as a solution for patients with irreparable meniscal injuries. Reliable fixation is...
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Article
Open AccessFast laser surface texturing of spherical samples to improve the frictional performance of elasto-hydrodynamic lubricated contacts
Textured surfaces offer the potential to promote friction and wear reduction by increasing the hydrodynamic pressure, fluid uptake, or acting as oil or debris reservoirs. However, texturing techniques often re...
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Chapter and Conference Paper
Analysis of an Actuated Frictional Interface for Improved Dynamic Performance
Friction in assembled structures is of great interest due to its ability to reduce the vibration amplitude of critical components. The nonlinear behaviour of a structure depends on a variety of physical parame...
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Article
Open AccessAdvances in nonequilibrium molecular dynamics simulations of lubricants and additives
Nonequilibrium molecular dynamics (NEMD) simulations have provided unique insights into the nanoscale behaviour of lubricants under shear. This review discusses the early history of NEMD and its progression fr...
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Article
An open-source equipment for thin film fabrication by electrodeposition, dip coating, and SILAR
A reliable and cheap equipment is hereby proposed for the deposition of thin films on several substrates. This system is capable of deposition using three different techniques sequentially on the same substrat...
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Article
Open AccessUltrastructural studies of Intraflagellar Transport trains in Chlamydomonas reinhardtii suggest a revision of the current model for IFT trafficking in the flagellar compartment
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Article
Emission spectra and transient photovoltage in dye-sensitized solar cells under stress tests
Dye-sensitized solar cells have been tested before, during, and after stress tests performed either under intense Xe-lamp illumination (equivalent to 1 sun up to 2.5 sun) or under thermal cycles between room T an...
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Article
Analytical and Numerical Models for Tangential Stiffness of Rough Elastic Contacts
The paper considers elastic contact of rough surfaces and develops a simple analytical expression for the stiffness of the contact under tangential loading, which predicts that the contact stiffness is proport...
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Article
Cardiac cycle efficiency: a new index for cardiac work estimation tested during aortic valve plasty
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Chapter and Conference Paper
Prediction of Fatigue Crack Growth Rates in Ti-6Al-4V Alloy
Crack initiation under thermo-mechanical fatigue is analyzed with consideration given to oxidation and creep strain accumulation. Transitions and interactions between different mechanisms, crack initiation and...
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Article
Measurement of Residual Elastic Strains in a Titanium Alloy Using High Energy Synchrotron X-Ray Diffraction
Residual elastic strains in a bent bar of titanium alloy Ti-6Al-4V were measured using high energy diffraction on station 16.3 at SRS Daresbury. Using a single bounce Laue crystal monochromator, diffraction pe...
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Article
Asymptotic characterisation of nearly-sharp notch root stress fields
A solution procedure is developed for characterising the stress state at the root of a notionally sharp notch, but possessing a small root radius, using two nested asymptotic solutions: an outer asymptote repr...
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Article
The prognostic value of cytogenetics is reinforced by the kind of induction/consolidation therapy in influencing the outcome of acute myeloid leukemia – analysis of 848 patients
We studied the impact of cytogenetics and kind of induction/consolidation therapy on 848 adult acute myeloid leukemia (AML) patients (age 15–83). The patients received three types of induction/consolidation re...
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Article
Electrosynthesis and characterization of poly(3-methylthiophene) on different substrates
We report on the study of the electropolymerization of 3-methylthiophene onto Pt, p-Si and indium-tin oxide deposited on polyester using quartz crystal microgravimetry, electrochemical and spectroelectrochemi...
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Article
A comparison of the electrochromic properties of WO3 films intercalated with H+, Li+ and Na+
The electrochromic response of W03 thin films under electrochemical insertion from nonaqueous electrolytes of one of the three different ions: protons, lithium and sodium cations is reported. In spite of the c...
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Article
Hyaluronidase as an antidote to extravasation ofVinca alkaloids: Clinical results
Skin necrosis is a recognized potential consequence of an inadvertent extravasation ofVinca alkaloids in the surrounding tissues during i.v. administration. Experimental studies suggest that hyaluronidase, an enz...
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Article
Irrigation for colostomized cancer patients: a rational approach
Management of a colostomy by irrigation is simple and effective. Five hundred and nine patients having a colostomy for rectal cancer during the last 10 years were assessed by our Rehabilitation Department as p...
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Chapter and Conference Paper
Design and Dynamic Characteristics Investigation of a High Performance Spherical Bearing
The note presents some design considerations for a multipad externally pressurized spherical bearing fed with incompressible fluid.
