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Full-Text Articles in Engineering
Modelling Net Zero Energy Options For A Sustainable Buildings Research Centre, Paul Cooper, Xiong Liu, Prabuono Buyung Kosasih, Rui Yan
Modelling Net Zero Energy Options For A Sustainable Buildings Research Centre, Paul Cooper, Xiong Liu, Prabuono Buyung Kosasih, Rui Yan
Faculty of Engineering - Papers (Archive)
This paper describes the preliminary design and energy analysis of a university research building in NSW, Australia. This case study highlights some of the challenges confronting those wishing to design cost-effective net zero energy buildings in the Australian higher education sector and beyond. The Sustainable Buildings Research Centre (SBRC) is presently under development at the University of Wollongong and will be a unique building in the local region and an exemplar in respect of demonstration of a range of technical and operational means of reducing greenhouse emissions and other ecological impacts. This paper provides details on the constraints and opportunities …
Influence Of Temperature On Coal Sorption Characteristics And The Theory Of Coal Surface Free Energy, Lei Zhang, Najdat I. Aziz, Ting Ren, Zhongwei Wang
Influence Of Temperature On Coal Sorption Characteristics And The Theory Of Coal Surface Free Energy, Lei Zhang, Najdat I. Aziz, Ting Ren, Zhongwei Wang
Faculty of Engineering - Papers (Archive)
An experimental study was undertaken to examine the sorption and desorption characteristics of coal at temperatures of 35 °C, 45 °C and 55 °C. The study focused on the effect of changes in temperature and coal particle sizes on gas sorption and desorption characteristics. The coal size used ranged from fragmented coals, 16 mm, 8 mm, 2.4 mm, powdered coal of 150 μm and 54 mm core samples. The samples were tested in pressure vessels, known as “bombs”, charged with CO2 gas at different pressure levels up to a maximum of 4000 kPa. It was found that temperature has a …
Octave Spanning Supercontinuum In An As2s3 Taper Using Ultralow Pump Pulse Energy, Darren D. Hudson, Stephen A. Dekker, Eric C. Magi, Alexander C. Judge, Stuart D. Jackson, Enbang Li, J S. Sanghera, L B. Shaw, I D. Aggarwal, Benjamin J. Eggleton
Octave Spanning Supercontinuum In An As2s3 Taper Using Ultralow Pump Pulse Energy, Darren D. Hudson, Stephen A. Dekker, Eric C. Magi, Alexander C. Judge, Stuart D. Jackson, Enbang Li, J S. Sanghera, L B. Shaw, I D. Aggarwal, Benjamin J. Eggleton
Faculty of Engineering and Information Sciences - Papers: Part A
An octave spanning spectrum is generated in an As2S3 taper via 77 pJ pulses from an ultrafast fiber laser. Using a previously developed tapering method, we construct a 1.3 μm taper that has a zero-dispersion wavelength around 1.4 μm . The low two-photon absorption of sulfide-based chalcogenide fiber allows for higher input powers than previous efforts in selenium-based chalcogenide tapered fibers. This higher power handling capability combined with input pulse chirp compensation allows an octave spanning spectrum to be generated directly from the taper using the unamplified laser output.
Energy-Loss Rate Of A Fast Particle In Graphene, Yee Sin Ang, Chao Zhang, Chun Kee
Energy-Loss Rate Of A Fast Particle In Graphene, Yee Sin Ang, Chao Zhang, Chun Kee
Faculty of Engineering - Papers (Archive)
The energy-loss rate of a fast particle in graphene is studied. The energy-loss rate always increases with increasing incident particle energy, which is quite unusual when compared to electron gas in normal metal. Graphene exhibits a “discriminating” behavior where there exists a low energy cut-off below which the scattering process is strictly forbidden, leading to lossless traverse of an external particle in graphene. This low energy cutoff is of the order of nearest neighbor hopping bandwidth. Our results suggest that backscattering is also absent in the external particle scattering of graphene.