Du, J, Harding, GL, Ogilvy, JA, Dencher, PR & Lake, M 1996, 'A study of Love-wave acoustic sensors', Sensors and Actuators, A: Physical, vol. 56, no. 3, pp. 211-219.View/Download from: Publisher's site
Love-mode acoustic devices are very promising as biosensors in gaseous and liquid environments because of their high sensitivity. An experimental study of Love-wave devices based on SiO2/ST-cut quartz, over a wide range of SiO2 thickness, is presented in this paper. Devices with up to 7.3 μm thick SiO2 guiding layers have been successfully manufactured via an r.f. sputtering technique. Mass sensitivity, velocity, insertion loss, oscillation frequency stability and temperature coefficient of the frequency have been studied as a function of layer thickness. The sensitivity increases with increasing layer thickness and reaches a maximum at around 5.5 μm, for a wavelength of 40 μm, in accordance with theory. Further increasing the thickness decreases the sensitivity dramatically. High sensitivity (≥ 300 cm2 g-1) can be achieved at thicknesses between 3.5 and 6.5 μm. The Love-wave dual-channel delay-line oscillators also demonstrate high frequency stability and low noise levels. The frequencies of the two channels track each other extremely well.
Lake, M, Smith, G, McKenzie, DR & Dzurak, A 1989, 'Properties Of Powders Deposited By Silane Hydrogen And Silane Methane Plasmas', Journal Of Non-crystalline Solids, vol. 109, no. 2-3, pp. 318-326.View/Download from: Publisher's site
Anstis, GR, Liu, Z & Lake, M 1988, 'Investigation of amorphous materials by electron diffraction - The effects of multiple scattering', Ultramicroscopy, vol. 26, no. 1-2, pp. 65-69.View/Download from: Publisher's site
Radial distribution functions of amorphous materials may be obtained using high energy electron diffraction and an analysis based on a single scattering approximation. Here we discuss the errors introduced by this analysis when it is applied to thick foils. It is found that interatomic spacings may still be determined with accuracy but coordination numbers will be in error. A method for retrieving single scattering intensity distributions from multiply scattered electrons is discussed and applied to data from hydrogenated amorphous silicon. © 1988.
Lake, MR & Harding, GL 1984, 'Cathode cooling apparatus for a planar magnetron sputtering system', Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, vol. 2, no. 3, pp. 1391-1393.View/Download from: Publisher's site
LAKE, MR & HARDING, GL 1982, 'CYLINDRICAL MAGNETRON CO-SPUTTER ETCHING OF COPPER TUBES WITH APPLICATIONS FOR SOLAR SELECTIVE ABSORBING SURFACES.', J VAC SCI TECHNOL, vol. V 21, no. N 1, pp. 66-69.View/Download from: Publisher's site
THE SURFACES OF COPPER TUBES HAVE BEEN UNIFORMLY TEXTURED BY CO-SPUTTER ETCHING IN A CYLINDRICAL MAGNETRON USING TITANIUM SEED. THE VARIATION OF SURFACE MORPHOLOGY AS A FUNCTION OF SPUTTER ETCHING CONDITIONS HAS BEEN INVESTIGATED. TRENDS ARE SIMILAR TO THOSE OBSERVED IN PREVIOUS EXPERIMENTS ON THE SPUTTER ETCHING OF PLANE COPPER SHEET. THE TEXTURED SURFACESMAY BE UTILIZED AS SELECTIVE ABSORBING SURFACES IN THE SOLAR THERMAL COLLECTORS. TYPICAL SURFACES PRODUCED HAVE ABSORPTANCES "ALPHA" = 0. 94 AND EMITTANCE "EPSILON" = 0. 13 AT 300K.
Harding, GL & Lake, MR 1981, 'Sputter etched metal solar selective absorbing surfaces for high temperature thermal collectors', Solar Energy Materials, vol. 5, no. 4, pp. 445-464.View/Download from: Publisher's site
Solar selective absorbing surfaces have been produced on relatively large areas of copper, stainless steel and nickel sheet, and copper and stainless steel tube, by sputter etching in a cylindrical magnetron. Sputtered titanium was used to seed the specimens during etching. The same basis procedure was used for etching all three metals. The various surfaces exhibited absorptances in the range 0.90 to 0.95 and emittances (at 300 K) in the range 0.10 to 0.25. For copper specimens, surface morphologies and solar selectivity varied with sputter etching parameters, allowing tailoring of selective properties. For the range of variables studied, surfaces produced on stainless steel and nickel were less dependent on sputtering conditions. Sputter etched copper surfaces are stable in vacuum at 400°C. Sputter etched stainless steel surfaces are stable in vacuum at 500°C and deteriorate extremely slowly in air at 400°C. Degradation mechanisms at elevated temperature, emittances at elevated temperature, and angular dependences of the absorptances of the surfaces are also discussed. The magnetron sputtering techniques described could be extrapolated to produce solar absorbers of length ≈2 m. © 1981.
Lake, MR & Harding, GL 1981, 'CYLINDRICAL MAGNETRON CO-SPUTTER ETCHING OF COPPER WITH APPLICATIONS FOR SOLAR SELECTIVE ABSORBING SURFACES.', Journal of vacuum science & technology, vol. 19, no. 2, pp. 173-180.View/Download from: Publisher's site
Solar selective absorbing surfaces was produced on large areas of copper plate seeded by a flux of titanium in a cylindrical magnetron co-sputter etching system. Surface oxide on the copper and the introduction of reactive gas during the etching were necessary for production of reproducible textured surfaces. The variation of optical properties and surface morphology as a function of sputter etching conditions has been studied. Optimum selective surfaces have absorptance alpha approximately equals 0. 92 and emittance epsilon approximately equals 0. 18 at 300 K. Both absorptance and emittance decrease slightly after annealing for thousands of hours at 500 degree C in vacuum.
Anania, EM, Caprarelli, G, Lake, M & Di Lorenzo, S 2006, 'Using mars global surveyor and mars odyssey date to reconstruct the volcano-tectonic history of Phaethontis region, Mars', Proceedings of the 6th Australian Space Science Conference, Australian Space Science Conference, National Space Society of Australia Ltd, Canberra, pp. 1-16.
In this paper we present part of an ongoing study to telemetry data of Phaethontis, aregion in the western hemisphere of Mars' Southern Highlands. in particular, we focus on an approximately 57,000 km2 area in Gorgonum Chaos. We selected THEMIS visual, MOC narrow angle and MOLA data abvailable from the Arizona State University and Malin Space Sceince Systems web-sites. We carried out multi-level processing of THEMIS and MOC data using the ISIS software and prcessed MOLA gridded data by the GMT software. After processing we input the images into ArcGIS software, We observed, identified and described, both 2- and 3-dimentionally, impact craters, chaotic and polygonal terrains, grabens and gullies. These landforms suggest a complex geological history involving sedimentary and tectonic processes such as meteoritic impact, the presence of underground water and ice, desiccation or freezing of wet sediemnts at least two episodes of extension, and recent aeolian activity.
Maher, A, Lake, M, Langtry, T & Hill, C 2007, 'A proteomics laboratory system and digital mentor', APAC07, Conference and Exhibition on Advanced Computing, Grid Application and eResearch, Australian Partnership for Advanced Computing, Perth, Australia, pp. 1-19.
The typical small biological laboratory is cmposed of electronic scientific equipment and wet laboratory equipment where staff record reesults into paper workbooks. There is oftern a lack of expert staff to guide new users, and hard won experience is locked away with individual staff and their workbooks. The Proteomics Laboratory System and Digital Mentor aims to: facilitate the capture, analysis and sharing of results; facilitate the creation and documentation of standardised work flows and experimental procedures; and mentore inexperienced users in best practice when engaged in particular procedures in the laboratory. In this paper we discuss the design of the system and report on the initial production release. This is nased on a relational database and web-server framework. A novel aspect of the system is the exploitation of custom extensions to a wiki-style interface that add functionality for non-expert end-users.