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Chapter and Conference Paper
The Effect of Laser Power and Laser Scan Passes on Bending Angle of Stainless Steel AISI 304 Laser Bending
The application of laser bending of thin sheet metal are quite limited given that this forming process is widely used in various industries. The aim of this paper is to study the effect of laser power and lase...
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Article
Open AccessOptimising confocal Raman microscopy for spectral map** of cement-based materials
Raman spectroscopy combined with confocal imaging, i.e. confocal Raman microscopy (CRM) is a relatively new technique with huge potential for high-resolution chemical map** of phase composition and spatial d...
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Article
Open AccessImproving bond strength and mass transport properties of spacer-concrete interface with textured spacers
Spacers are important devices used in all concrete structures to support reinforcing steel and achieve the required cover. However, spacers induce a weak, porous and microcracked interface that facilitates ing...
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Article
Open AccessCombined effects of vertical spacers and segregation on mass transport properties of reinforced concrete
All concrete structures contain reinforcement spacers, and deep sections can be affected by bleeding and segregation without displaying visible indications during casting. However, their effects on mass transp...
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Article
Open AccessMicroscopy techniques for determining water–cement (w/c) ratio in hardened concrete: a round-robin assessment
Water to cement (w/c) ratio is usually the most important parameter specified in concrete design and is sometimes the subject of dispute when a shortfall in concrete strength or durability is an issue. However...
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Article
Step-by-step rotation of a molecule-gear mounted on an atomic-scale axis
Designing and building molecular machines at the nanometre scale is a conceptual and synthetic challenge. Rotation of a single molecule has been observed but controlling the direction of the rotation has so fa...
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Article
Association between RANTES functional polymorphisms and tuberculosis in Hong Kong Chinese
Chemokines play a major role in leukocyte recruitment during the formation of tuberculous granulomas. We studied the association between genetic polymorphisms of three chemokines, monocyte chemoattractant prot...
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Chapter and Conference Paper
CHARACTERISING THE PORE STRUCTURE OF CEMENT-BASED MATERIALS USING BACKSCATTERED ELECTRON AND CONFOCAL MICROSCOPY
The pore structure of cement-based materials affects their mechanical properties, shrinkage behaviour, molecular/ionic transport properties and durability. This paper presents an overview of our work on imagin...
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Chapter and Conference Paper
Do parents and children know each other’s smoking experience and attitudes towards children’s smoking?
In 1994, a survey on youth smoking and health in Hong Kong showed that 29% of junior secondary-school students (mostly aged 12–15 years) had ever smoked cigarettes. More than half had smoked their first cigare...
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Article
Probing the Limits of Silicon-Based Nanoelectronics
The ability to reduce device features to increasingly smaller dimensions offers the potential for remarkable circuit performance and low power consumption. CMOS (Complementary Metal-Oxide-Semiconductor) device...
