ORCID Profile
0000-0003-4821-5214
Current Organisations
Murdoch University
,
Victoria University of Wellington
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Publisher: Oekom Publishers GmbH
Date: 2017
Publisher: SAGE Publications
Date: 14-10-2019
Publisher: Walter de Gruyter GmbH
Date: 16-06-2017
Publisher: Frontiers Media SA
Date: 18-01-2018
Publisher: Elsevier BV
Date: 07-2022
Publisher: Springer Science and Business Media LLC
Date: 25-01-2022
Publisher: No publisher found
Date: 2018
DOI: 10.1037/T68057-000
Publisher: Psychology Press
Date: 18-10-2010
Publisher: Springer Science and Business Media LLC
Date: 07-2008
DOI: 10.3758/MC.36.5.957
Publisher: Emerald
Date: 21-08-2017
Publisher: MDPI AG
Date: 25-05-2019
DOI: 10.3390/EN12102008
Abstract: Recent reports from international energy agencies indicate that more than a billion of the population in the world is deprived of basic electricity provisions, confined mainly to the remote communities of developing nations. Microgrids are promoted as a potential technology for electricity provisions to off-grid rural communities, but have failed to reach their value proposition in the context of rural electrification access. In view of the r ant rural electrification issues, the objective of this paper is to furnish an understanding of, and advance the knowledge into, methods to facilitate the design and development of microgrid systems for remote communities in developing countries. The methodology involves an integrative review process of an annotated bibliography to summarise past empirical or theoretical literature. As such, this research is based on evaluation attributes, and identifies the challenges and barriers for remote microgrids through an analysis of 19 case studies. The paper concludes by proposing key aspects that need to be considered for developing a framework to improve the sustainability of electricity provisions for off-grid rural communities in developing countries.
Publisher: SAGE Publications
Date: 06-2007
Publisher: Informa UK Limited
Date: 02-01-2014
Publisher: Elsevier BV
Date: 10-2019
Publisher: Frontiers Media SA
Date: 05-07-2021
Publisher: Informa UK Limited
Date: 02-01-2021
Publisher: Elsevier BV
Date: 08-2008
Publisher: Springer Science and Business Media LLC
Date: 17-08-2020
Publisher: Wiley
Date: 03-08-2021
DOI: 10.1111/APHW.12298
Publisher: American Psychological Association (APA)
Date: 2010
DOI: 10.1037/A0019764
Abstract: We investigated the effects of the duration and type of to-be-articulated distractors during encoding of a verbal list into short-term memory (STM). Distractors and to-be-remembered items alternated during list presentation, as in the complex-span task that underlies much of working-memory research. According to an interference model of STM, known as serial order in a box (SOB Farrell & Lewandowsky, 2002), additional repeated articulations of the same word between list items should cause minimal further disruption of encoding into STM even though the retention interval for early list items is increased. SOB also predicts that the articulation of several different distractor items should lead to much enhanced disruption if the distractor interval is increased. Those predictions were qualitatively confirmed in 4 experiments that found that it is the type of distractors, not their total duration, that determines the success of encoding a list into STM. The results pose a challenge to temporal models of complex-span performance, such as the time-based resource sharing model (Barrouillet, Bernardin, & Camos, 2004). The results add to a growing body of evidence that memory for the short term is not exclusively governed by purely temporal processes.
Publisher: Wiley
Date: 25-05-2017
DOI: 10.1002/SD.1688
Publisher: Oekom Publishers GmbH
Date: 2017
Publisher: Informa UK Limited
Date: 25-05-2020
Publisher: MDPI AG
Date: 04-10-2018
DOI: 10.3390/SU10103557
Publisher: Oxford University Press
Date: 22-04-2012
Publisher: Springer Science and Business Media LLC
Date: 12-2007
DOI: 10.3758/BF03192938
Publisher: Informa UK Limited
Date: 08-12-2022
Publisher: Corporacion Universitaria Iberoamericana
Date: 13-05-2019
Publisher: Elsevier BV
Date: 2021
Publisher: Springer Berlin Heidelberg
Date: 28-09-2012
Publisher: Elsevier BV
Date: 03-2019
Publisher: Elsevier BV
Date: 09-2017
Publisher: Elsevier BV
Date: 06-2021
Publisher: Elsevier BV
Date: 08-2019
Publisher: MDPI AG
Date: 04-05-2021
DOI: 10.3390/EN14092636
Abstract: This study examined the feasibility of green hydrogen as a transport fuel for the very heavy vehicle (VHV) fleet in New Zealand. Green hydrogen is assumed to be produced through water electrolysis using purely renewable energy (RE) as an electricity source. This study chose very heavy vehicles as a potential market for green hydrogen, because it is considered “low-hanging fruit” for hydrogen fuel in a sector where battery electrification is less feasible. The study assumed a large-scale, decentralized, embedded (dedicated) grid-connected hydrogen system of production using polymer electrolytic membrane (PEM) electrolysers. The analysis comprised three steps. First, the hydrogen demand was calculated. Second, the additional RE requirement was determined and compared with consented, but unbuilt, capacity. Finally, the hydrogen production cost was calculated using the concept of levelized cost. Sensitivity analysis and cost reduction scenarios were also undertaken. The results indicate an overall green hydrogen demand for VHVs of 71 million kg, or 8.5 PJ, per year, compared to the 14.7 PJ of diesel fuel demand for the same VHV travelled kilometres. The results also indicate that the estimated 9824 GWh of RE electricity that could be generated from consented, yet unbuilt, RE projects is greater than the electricity demand for green hydrogen production, which was calculated to be 4492 GWh. The calculated levelized hydrogen cost is NZD 6.83/kg. Electricity cost was found to be the most significant cost parameter for green hydrogen production. A combined cost reduction for CAPEX and electricity translates to a hydrogen cost reduction in 10 to 20 years.
Publisher: Frontiers Media SA
Date: 02-04-2019
Publisher: SAGE Publications
Date: 20-09-2017
Location: South Africa
No related grants have been discovered for Sonja M Geiger.