characterisation – TechConnect Briefs

Reservoir Structural Strategies on the Integrity of Gas Mobility Ratio

Abunumah O., Ogunlude P., Gobina E., Centre for Process Integration and Membrane Technology, School of Engineering, The Robert Gordon University, Aberdeen, UK

Fluid mobility is an essential engineering quantity for characterizing reservoir fluid recovery. In Enhanced Oil Recovery (EOR), mobility ratio is a mathematical term to describe the mobility of the displacing fluid relative to that of [...]

Methods of colloid vibration imaging for characterisation of nano-particle suspensions

Wang M., Hosseini M., Bramson L., Khan J.I., University of Leeds, UK

This paper addresses various aspects in the development of the new imaging technique, colloid vibration potential imaging. Two theoretical models are introduced, including an extended (2D) slab model and a 3D electric dipole model. These [...]

An emerging method for the separation and characterisation of manufactured nanoparticles in complex environmental samples

Chekli L., Phuntsho S., Kandasamy J., Shon H., University of Technology Sydney, AU

Manufactured nanoparticles (MNPs) are increasingly released to the environment. In spite of this growth, information about the fate and toxicity of nanoparticles in the environment is limited, partly due to the lack of techniques capable [...]

Reliability Prediction of Single-Crystal Silicon MEMS Using Dynamic Raman Spectroscopy

Dewanto R., Hu Z., Gallacher B., Hedley J., Newcastle University, UK

This paper proposes an extension and improvement to reliability predictions in single-crystal silicon MEMS by utilizing dynamic Raman spectroscopy to allow the gathering process of Weibull fracture test data to be done directly on devices [...]

Characterisation of Graphene in Liquid and Gaseous Environment with Quartz Crystal Microbalance for Applications in Real-Life Energy Storage Devices

Mazzocco R., Robinson B., Kolosov O., Lancaster University, UK

Graphene is a flat monolayer of carbon atoms whose extraordinary properties are to revolutionize the performance of many technological applications. Unfortunately there is very little understanding of how the properties of graphene change in its [...]

Synthesis and characterisation of flame-sprayed superparamagnetic bare and silica-coated maghemite nanoparticles

Teoh W.Y., Li D., Selomulya C., Woodward R., Amal R., Monash University, AU

Magnetic nanoparticles are a much sought-after entity with direct applications in bioseparation, magnetic resonance imaging (MRI), drug delivery and cancer therapy. gamma-Fe2O3 and SiO2/ gamma-Fe2O3 nanoparticles of different sizes (dBET = 5-50 nm) were synthesised [...]

Determination of relative concentrations of metallic and semi-conducting SWNTs in suspension via dielectrophoresis

Mureau N., Mendoza E., Hoettges K.F., Silva S.R.P, Hughes M.P., University of Surrey, UK

Dielectrophoresis (DEP) is a phemomenon of induced particle motion in non-uniform electric fields. The effect is frequency dependent; by monitoring the motion of particles in AC fields and ananlysing the change in motion with frequency, [...]

Thermo-Mechanical Characterization and Integrity Checking of Packages and Movable-Structures

Szabo P., Perlaky G., Bognar Gy., Horvath Gy., Ress S., Poppe A., Rencz M., Courtois B., Budapest University of Technology and Economics, HU

The paper will present a variety of possibilities for the thermal characterization of different movable MEMS devices and packaging. It will discuss the major difficulties in these methodologies and the ways to overcome them. Comparison [...]