A5024510576- Advanced Surface Polishing Techniques
- Additive Manufacturing and 3D Printing Technologies
- Laser Material Processing Techniques
- Advanced machining processes and optimization
- Manufacturing Process and Optimization
- Injection Molding Process and Properties
- Advanced Machining and Optimization Techniques
- Nanofabrication and Lithography Techniques
- Additive Manufacturing Materials and Processes
- Adhesion, Friction, and Surface Interactions
- Surface Modification and Superhydrophobicity
- Metal and Thin Film Mechanics
- Surface Roughness and Optical Measurements
- Photonic and Optical Devices
- Laser-induced spectroscopy and plasma
- Semiconductor Lasers and Optical Devices
- Tribology and Lubrication Engineering
- Semantic Web and Ontologies
- Fuzzy Logic and Control Systems
- Spectroscopy and Laser Applications
- Optical Coatings and Gratings
- Flexible and Reconfigurable Manufacturing Systems
- Diamond and Carbon-based Materials Research
- Integrated Circuits and Semiconductor Failure Analysis
- Laser Design and Applications
University of Birmingham
2015-2024
Zabok General Hospital
2024
Inpex (Japan)
2019
Korea Institute of Machinery and Materials
2017
University of Nottingham
2017
Cardiff University
2004-2013
Cornell University
2004-2010
Southern Polytechnic State University
2005
University of Wales
1997-2004
Mitel (Canada)
1998-2004
The K-means algorithm is a popular data-clustering algorithm. However, one of its drawbacks the requirement for number clusters, K, to be specified before applied. This paper first reviews existing methods selecting clusters Factors that affect this selection are then discussed and new measure assist proposed. concludes with an analysis results using proposed determine different data sets.
Abstract Ice accretion on external aircraft surfaces due to the impact of supercooled water droplets can negatively affect aerodynamic performance and reduce operational capability and, therefore, must be prevented. Icephobic coatings capable reducing adhesion strength ice a surface represent promising technology support thermal or mechanical protection systems. Icephobicity is similar hydrophobicity in several aspects superhydrophobic embody straightforward solution problem....
This paper presents two W-band waveguide bandpass filters, one fabricated using laser micromachining and the other 3-D printing. Both filters are based on coupled resonators designed to have a Chebyshev response. The first filter is for it compact structure allowing whole be made from single metal workpiece. eliminates need split into several layers therefore yields an enhanced performance in terms of low insertion loss good durability. second produced polymer resin stereolithography...
The evolution over time of wettability properties super hydrophobic Al2024 developed using an IR-, ns-laser was studied under different storage conditions.
In the present work, a study of laser-based surface structuring aerospace-grade titanium alloy (Ti-6Al-4V) with subsequent ageing by employing two different storage methods is undertaken. The samples were patterned using UV-ns and IR-fs pulsed lasers in two-step process to fabricate bio-inspired hierarchical structures. resulting structure consisted regular periodic square-shaped micro-pillars covered 810 nm-periodic LIPSS. After laser processing kept conditions: exposed ambient air inside...
The paper reports an investigation into the functional response of textured surfaces with different designs that incorporated arrays micro-dimples and grooves (40 μm diameter/width 15 depth for both patterns) produced on tungsten carbide (WC) blocks by employing nanosecond (ns) femtosecond (fs) lasers. In particular, tribological performance WC against stainless steel (SS316L) counterbody was evaluated in terms friction wear under dry condition compared to untextured specimen. Friction tests...
Antibacterial coatings are often employed to elastomer surfaces inhibit bacterial attachment. However, such approaches could lead increased antibiotic resistance. Surface micro-/nanotexturing is gaining significant attention recently, as it a passive approach reduce adhesion surfaces. To this end, work aims assess the anti-biofouling functionality of femtosecond laser-induced submicron topographies on biomedical Femtosecond laser processing was produce two types stainless-steel substrates....