A5090101145- Mechanical Behavior of Composites
- Astronomy and Astrophysical Research
- Fire effects on concrete materials
- Adaptive optics and wavefront sensing
- Stellar, planetary, and galactic studies
- Fuel Cells and Related Materials
- Fiber-reinforced polymer composites
- Fire dynamics and safety research
- Structural Behavior of Reinforced Concrete
- Fatigue and fracture mechanics
- Composite Material Mechanics
- Aluminum Alloys Composites Properties
- Structural Response to Dynamic Loads
- Advanced Battery Technologies Research
- Natural Fiber Reinforced Composites
- High-Velocity Impact and Material Behavior
- Composite Structure Analysis and Optimization
- Membrane-based Ion Separation Techniques
- Polymer crystallization and properties
- Experimental Learning in Engineering
- Smart Materials for Construction
- Flame retardant materials and properties
- Spectroscopy and Laser Applications
- Epoxy Resin Curing Processes
- Advanced ceramic materials synthesis
Virginia Tech
2015-2025
Macquarie University
2018-2024
Australian Astronomical Observatory
2011-2023
Vanda Institute
2023
Interface (United States)
2013-2016
Mechanics' Institute
2015
Freeport-McMoRan (United States)
2005
Dow Chemical (United States)
2005
Oak Ridge National Laboratory
1999
Abstract Aluminum alloys are increasingly being used in a broad spectrum of load-bearing applications such as lightweight structures, light rail, bridge decks, marine crafts, and off-shore platforms. A major concern the design land-based aluminum structures is fire safety, at least part due to mechanical property reduction temperatures significantly lower than that for steel. substantial also exists regarding integrity stability an structure following fire; however, little research has been...
We introduce the 4-metre Multi-Object Spectroscopic Telescope (4MOST), a new high-multiplex, wide-field spectroscopic survey facility under development for four-metre-class Visible and Infrared Survey Astronomy (VISTA) at Paranal. Its key specifications are: large field of view (FoV) 4.2 square degrees high multiplex capability, with 1624 fibres feeding two low-resolution spectrographs ($R = λ/Δλ\sim 6500$), 812 transferring light to high-resolution spectrograph \sim 20\,000$). After...
Carbon nanotubes (CNTs) were grown on the surface of carbon fibers utilizing a relatively low temperature synthesis technique; graphitic structures by design (GSD). To probe effects protocols mechanical properties, other samples with CNTs prepared using catalytic chemical vapor deposition (CCVD). The woven graphite fabrics thermally shielded thin film SiO2 and top this film. Raman spectroscopy electron microscopy revealed species to be multi-walled (MWCNTs). damping performance hybrid...
The near-infrared is an important part of the spectrum in astronomy, especially cosmology because light from objects early universe redshifted to these wavelengths. However, deep observations are extremely difficult make ground-based telescopes due bright background atmosphere. Nearly all this comes and narrow emission lines atmospheric hydroxyl (OH) molecules. cannot be easily removed data brightness fluctuates unpredictably on short timescales. sensitivity optical astronomy far exceeds...
The High Efficiency and Resolution Multi Element Spectrograph, HERMES, is a facility-class optical spectrograph for the Anglo-Australian Telescope (AAT). It designed primarily Galactic Archaeology, first major attempt to create detailed understanding of galaxy formation evolution by studying history our own galaxy, Milky Way. goal GALAH survey reconstruct mass assembly Way through chemical abundance study one million stars. based at AAT fed existing 2dF robotic fiber positioning system. uses...
Abstract Fused filament fabrication (FFF) has seen broad industrial adoption as it is capable of manufaturing large complex parts from robust thermoplastics in a cost‐effective manner. However, the mechanical performance printed limited due to poor interlayer bonding and presence voids. In order overcome these drawbacks, addition short or continuous fibers into polymer matrix been investigated, can act reinforcement while also mitigating residual stress resulting material's rapid...
Long-term durability of the membrane electrode assembly (MEA) in proton exchange (PEM) fuel cells is one major technological barriers to commercialization cell vehicles. The cracks layers MEA, referred as mud-cracks, are potential contributors failure PEM. To investigate how these mud-cracks affect mechanical pressure-loaded blister tests performed at 90°C determine biaxial fatigue strength Gore-Primea® series 57 MEA. In volume-controlled tests, leaking rate determined a function cycles....
Abstract The Gemini High-resolution Optical SpecTrograph (GHOST) is the newest high-resolution spectrograph to be developed for a large-aperture telescope, recently deployed and commissioned at Gemini-South telescope. In this paper, we present first science results from GHOST taking during its commissioning runs. We have observed bright metal-poor benchmark star HD 122563, along with two stars in ultrafaint dwarf galaxy Reticulum II (Ret ii ), one of which was previously identified as...
Abstract The tensile stress–strain behavior of Nafion 117 and sulfonated poly(arylene ether sulfone) copolymer (BPSH35) membranes were explored with respect to the effects strain rate, counterion type, molecular weight, presence inorganic fillers. yielding properties two films most affected by change in rate. curves acid salt forms exhibited larger deviations at strains above yield strain. As weight BPSH35 samples increased, elongation break improved significantly. Enhanced mechanical...
The background noise between 1 and 1.8 microns in ground-based instruments is dominated by atmospheric emission from hydroxyl molecules. We have built commissioned a new instrument, GNOSIS, which suppresses 103 OH doublets 1.47 - 1.7 factor of ~1000 with resolving power ~10,000. present the first results commissioning GNOSIS using IRIS2 spectrograph at AAT. combined throughput fore-optics, grating unit relay optics ~36 per cent, but this could be improved to ~46 cent more optimal design....