ANU Scholarly Output

Permanent URI for this communityhttps://hdl.handle.net/1885/9051

The Australian National University's Scholarly output collection is an online location for collecting, preserving and disseminating the scholarly output of the University. This service allows members of the University to share research with the wider community. ANU Open Research accepts journal articles, conference papers, book chapters, working or technical papers and other forms of scholarly communication.

While the aim is to have all our scholarly output available under an 'open access' model, some items may be unavailable due to publisher embargo periods or other copyright restrictions.

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Now showing 1 - 20 of 11411

Embargo
0.1 Hz/Hz√ Frequency Stability in a Passive, Optical Fiber Frequency Reference
(Optica, 2021) Zhang, Ya; Bandutunga, Chathura; McRae, Terry; Gray, Malcolm; Chow, Jong
A digital interferometric fiber frequency reference is demonstrated with frequency stability of 0.1 Hz/√Hz above 100 Hz. The thermal stability is validated using an optical frequency comb, and key noise sources are identified and modeled.
Embargo
1 + 1 = 3 : Factors influencing error detection with mathematical and reasoning problems
(Australasian Society for Cognitive Science, 2010) Pymont, Carly; Smithson, Michael
Embargo
1-point rigid motion estimation and segmentation with a RGB-D camera
(Conference Organising Committee, 2013) Perera, Kukulage (Samunda); Barnes, Nick
RGB-D cameras like Microsoft Kinect that provide color and dense depth images have now become commonplace. We consider the problem of estimation and segmentation of multiple rigid body motions observed by such a camera. On the basis of differential geomet
Embargo
1000 Quantifying multiple causes of death: A systematic review and audit of methods and practice
(Oxford Academic, 2021) Balogun, Saliu; Bishop, Karen; Eynstone-Hinkins, James; Martin, Melonie; Moreno-Betancur, Margarita; Rao, Chalapati; Joshy, Grace
Background Mortality reporting and research are typically focused on a single underlying cause of death (UCoD) selected from multiple reported causes. The need to incorporate multiple causes of death (MCoD) in mortality statistics is now recognised internationally, but there is scant methodological work to guide analytical approaches. This review aims to identify and appraise current methods and practices used to analyse MCoD data. Methods The Web of Science, Medline, Pubmed and Scopus (from inception to December 2019) were queried. Studies reporting MCoD alone or in comparison with single UCoD were included. The review is supplemented by qualitative interview with international experts. Results 3491 studies were identified; 141 full texts were included in the review. The measures usually estimated when analysing MCoD can be broadly categorised into descriptive measures (n = 93 studies), measures of associations between diseases (n = 46 studies) and advanced statistical methods (n = 11 studies). Descriptive statistics commonly used include standardized ratio of multiple to underlying cause (SRMU) and mortality rates based on any mention of a disease. Approaches used to assess measures of associations between diseases include the Cause-of-Death Association Indicator (CDAI) and social network analysis. The advanced statistical methods include weighting MCoD and lethal defect-wear model of mortality. Audit results will be discussed. Conclusions This review provides a comprehensive and updated summary of methodological approaches used to analyse MCoD data. The merit of each analytical framework is discussed.
Open Access
17β-Hydroxy-3-oxoandrost-4-en-19-oic acid as a source of nandrolone in acid solvolysed stallion urine extracts
(R&W Communications, 2007) McKinney, Andrew; Pu, Fan; McLeod, Malcolm; Suann, Craig J; Stenhouse, Allen M
At the 15th ICRAV in Dubai, evidence was presented that certain 19-norsteroids typically observed in acid solvolysed stallion urine extracts may actually be chemical artefacts formed through the decarboxylation of endogenous steroid-19-oic acids. In the case of the nandroloone frequently detected in such samples, this explanation provides an alternative to the traditional assumption that nandrolone sulphate and/or nandrolone sulphate and /or nandrolone glucurornide are normal components of stallion urine. This, in turn, raises the possibility of using intact phase II conjugates of nandrolone as markers for exogenous nandrolone administration.
Open Access
19% Efficient N-Type All-Back-Contact Silicon Wafer Solar Cells With Planar Front Surface
(Australian Solar Energy Society, 2011) Zin, Ngwe Soe; Blakers, Andrew; McIntosh, Keith; Franklin, Evan; Wong, Johnson; Mueller, Thomas; Aberle, Armin; Feng, Zhiqiang; Huang, Qiang
Open Access
1947 Constitution situated in the problematic of the postwar Japanese state (summary & incomplete draft)
(2002) Muto, Ichiyo
Not available
Embargo
197Au(n,y) - Towards a new standard for energies relevant to stellar nucleosynthesis
(IOP Publishing, 2012) Lederer, C; Colonna, N.; Dillmann, I.; Domingo-Pardo, C.; Giesen, U; Heil, M.; Gunsing, F.; Kappeler, F; Massimi, C; Mengoni, A.; Wallner, Anton; Mosconi, M.; Nolte, R.; Schmidt, S.
Two experiments were performed to resolve a discrepancy of the197Au(n, γ) cross section between the IAEA standard evaluation and the reference cross section for astrophysical experiments in the lower keV energy region. We measured the197Au(n, γ) reactio
Embargo
1:1 Concerts: A Diaspora of Concert Hall Refugees Find New Performance Spaces
(University of Melbourne, 2020) Walker, Sally
How we need music has been made profoundly clear over these last months. Balcony concerts, online lessons and home recordings prove that what is essential, adapts to survive. Despite cancelled concerts confronting a sense of purpose and capacity to earn an income for many musicians, there is also a by-product of ‘dystopia to utopia’; a chance for a complete reset.
Embargo
2.5D multizone reproduction using weighted mode matching
(IEEE, 2018) Zhang, Wen; Zhang, Junqing; Abhayapala, Thushara; Zhang, Lijun
The mode matching based multizone reproduction has mainly been focused on a purely 2D theory which is inadequate to fit the 3D reality. Its extension to the 3D theory however requires many secondary sources and a high computational complexity. In this paper, a weighted mode matching approach is developed for 2.5D multizone reproduction. The multizone soundfield is reproduced in the horizontal plane within a circular control region using the loudspeakers modelled as 3D point sources. We propose weighting the Bessel-spherical harmonic modes for 2.5D reproduction and a matching between the desired and reproduced soundfields over the entire control region. Simulation results show that in comparison with the conventional 2.5D reproduction method a more accurate reproduction is achieved using the proposed weighting approach.
Embargo
2.5D Multizone Reproduction with Active Control of Scattered Sound Fields
(IEEE, 2019) Zhang, Junqing; Zhang, Wen; Abhayapala, Thushara; Xie, Jingli; Zhang, Lijun
Multizone reproduction has been focused on reproducing sounds in an empty listening space. However, there are always scatterers such as human heads in sound zones, generating scattered sound fields and causing degraded system performance. In this work, we develop a modal-domain method for 2.5D multizone reproduction with a solid object in the bright zone. Analytical expressions of the incident and scattered fields are developed. We then propose an active control strategy to correct the scattering effect. In the reproduction stage, we use the weighted mode matching approach to achieve the optimal control over the entire region. Simulation results show that in comparison with the conventional method which does not consider the scattering effect, the proposed method can achieve higher acoustic contrast performance over a broadband frequency range.
Open Access
2.5D sound field reproduction in higher order Ambisonics
(Institute of Electrical and Electronics Engineers, 2014) Zhang, Wen; Abhayapala, Thushara
Embargo
2.8dB/cm Internal Gain Tellurium Dioxide Erbium Waveguide Amplifiers
(Australian Institute of Physics, 2010) Vu, Khu; Madden, Steve
We report Erbium doped Tellurium dioxide single-mode planar rib waveguide amplifiers with net gain and wide bandwidth operation. Peak internal gains of up to 14dB have been achieved in 5cm long rib waveguides (2.8dB/cm).
Open Access
20 W and 50 W Guidestar Laser System Update for the Keck I and Gemini South Telescopes
(SPIE, 2008) Lee, Ian; Jalali, Munib; Vanasse, Neil; Prezkuta, Zachary; Groff, Ken; Roush, Jared; Rogers, Nathan; Andrews, Estelle; Moule, Grant; Tiemann, Bruce; d'Orgeville, Celine
Lockheed Martin Coherent Technologies has developed 20 W and 50 W commercial solid-state sodium beacon Guidestar Laser Systems (GLS) for the Keck I and Gemini South telescopes, respectively. This work represents a critical step toward addressing the need
Open Access
20% efficient Sliver cells fabricated with a simplified processing sequence
(Australian and New Zealand Solar Energy Society (ANZSES), 2006) Franklin, Evan; Weber, Klaus; Everett, Vernie; Blakers, Andrew; Conference Program Committee
Embargo
2017 RANZCP Continuing Professional Development Program: Implementation and Progression
(SAGE Publications, 2017) Yong, Choong-Siew; Looi, Jeffrey
Background: The Royal Australian and New Zealand College of Psychiatrists (RANZCP) is implementing a redeveloped continuing professional development (CPD) program in 2017. The redeveloped program incorporates key clinically relevant CPD elements such as peer review and reflection on practice, quality improvement, audit or outcomes measurement of practice and self-directed learning. The program strengthens essential elements identified in the Medical Board of Australia’s (MBA’s) plan for revalidation. Objectives: To update participants on the progress and implementation of the CPD program. This symposium will utilize a panel discussion approach to provide information and seek feedback. The presentation will provide participants with examples of how to meet the requirements of the program, the RANZCP online CPD system and its associated benefits. Methods: Literature review, benchmarking of other medical CPD programs, review of revalidation requirements and overview of the implementation of the 2017 CPD program. Findings: This symposium aims to inform fellows of the structure and benefits of the new program as well as discussing practical examples about how participants can meet their CPD program requirements. The discussion will be informed in part by the changes to the CPD program and any identified changes that have been reflected as part of the MBA’s plan for revalidation. The panel will discuss changes to the program and how the changes have been received following their implementation, particularly for those related to practice improvement and how the changes can be appropriately completed. Conclusions: An important role of the RANZCP is to ensure that a modern CPD program for participants is available, user friendly and professionally relevant with the appropriate systems to support it. The program aims to provide a framework for maintaining competence as well as improving the clinical skills and practice of psychiatrists.
Open Access
208Po populated through EC/β decay
(IOP Publishing, 2020) Brunet, M.; Berry, T. A.; Podolyak, Zs.; Carroll, R. J.; Lica, R.; Sotty, Ch; Andreyev, A. N.; Borge, M. J. G.; Cubiss, J. G.; Fraile, M.; Simpson, Ed; Warr, Nigel
The structure of 208Po resulting from the EC/β+decay of 208At was studied at CERN’s ISOLDE Decay Station (IDS). The high statistics afforded by the high yield of 208At and the high efficiency HPGe clusters at the IDS allowed for greater insight into lower intensity transitions and thus significant expansion of the 208Po level scheme. Furthermore, investigation into the isomeric state yielded a new half life 377(9) ns in addition to uncovering new transitions populating the state.
Embargo
23% efficient n-type crystalline silicon solar cells with passivated partial rear contacts
(IEEE, 2018) Bullock, James; Wan, Yimao; Xu, Zhaoran; Yan, Di; Phang, Sieu Pheng; Hettick, Mark; Samundsett, Christian; Hameiri, Ziv; Cuevas, Andres; Javey, Ali
Over the past three years a new family of high efficiency n-type crystalline silicon cells featuring passivated partial rear contacts (PRC) has emerged. These cells take advantage of the unique contact properties obtained by introducing thin metal compound interlayers, such as TiOx and LiFx, between the metallic electrode and the silicon absorber. This paper explores the concept and potential advantages of the n-type passivated PRC cell. In particular, the recent fabrication of a cell at 23.1%, featuring a less-than 1% TiO x /LiF x /Al passivated PRC, demonstrates the compatibility of this concept with high efficiency designs.
Open Access
The 236U neutron capture cross-section measured at the n-TOF CERN facility
(EDP Sciences - Web of Conferences, 2017-09-13) Mastromarco, M.; Barbagallo, M.; Vermeulen, M. J.; Colonna, N.; Altstadt, S.; Andrzejewski, J.; Wallner, Anton; Audouin, L.; Becares, V.; Belloni, F.; Berthoumieux, E.; Plompen, A.; Hambsch, F.; Schillebeeckx, P.; Mondelaers, W.; Heyse, J.; Kopecky, S.
The 236U isotope plays an important role in nuclear systems, both for future and currently operating ones. The actual knowledge of the capture reaction of this isotope is satisfactory in the thermal region, but it is considered insufficient for Fast Reactor and ADS applications. For this reason the 236U(n, γ) reaction cross-section has been measured for the first time in the whole energy region from thermal energy up to 1 MeV at the n_TOF facility with two different detection systems: an array of C6D6 detectors, employing the total energy deposited method, and a FX1 total absorption calorimeter (TAC), made of 40 BaF2 crystals. The two n_TOF data sets agree with each other within the statistical uncertainty in the Resolved Resonance Region up to 800 eV, while sizable differences (up to ≃ 20%) are found relative to the current evaluated data libraries. Moreover two new resonances have been found in the n_TOF data. In the Unresolved Resonance Region up to 200 keV, the n_TOF results show a reasonable agreement with previous measurements and evaluated data.
Embargo
238U(n,y) reaction cross section measurement with C6D6 detectors at the n_TOF CERN facility
(EPJ Web of Conferences, 2014) Mingrone, F.; Massimi, C; Vannini, G.; Altstadt, S; Andrzejewski, J.; Audouin, L; Barbagallo, M; Becares, V; Becvar, F; Belloni, F; Wallner, Anton

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Browsing ANU Scholarly Output by Type "Conference paper"