ORCID Profile
0000-0001-9791-4295
Current Organisation
University of South Australia
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Publisher: MDPI AG
Date: 10-12-2020
DOI: 10.3390/SU122410329
Abstract: While the Circular Economy in the built environment is often viewed in terms of recycling, more value can be obtained from buildings and physical components by their reuse, aided by stewardship and remanufacture, to ensure optimum performance capability. The use of cyber-physical information for online identification, examination and exchange of reusable components may improve their life-cycle management and circularity. To this end, a bi-directional data exchange system is established between physical building components and their virtual Building Information Modeling (BIM) counterparts, so that their life-cycle information—including history of ownership, maintenance record, technical specifications and physical condition—can be tracked, monitored and managed. The resultant prototype Cloud-based BIM platform is then adapted to support an ongoing product-service relationship between suppliers roviders and users/clients. A case study from a major new hospital, focusing upon an ex le of internal framed glazed systems, is presented for ”proof of concept” and to demonstrate the application of the proposed method. The result of the case study shows that, informed by the life-cycle data from the Cloud-BIM platform, a “lease with reuse” service option is able to deliver a lower total cost and less carbon intensity for each unit of frame-glazed module. This leads to a higher level of eco-efficiency, coupled with decreased consumption of material resources and reduced generation of waste. The research is expected to serve as a step forward in the era of Industry 4.0 and illuminate a more sophisticated way to manage building assets.
Publisher: Routledge
Date: 04-11-2022
Publisher: Emerald
Date: 09-03-2020
DOI: 10.35241/EMERALDOPENRES.13420.2
Abstract: While most efforts to combat climate change are focussed on energy efficiency and substitution of fossil fuels, growth in the built environment remains largely unquestioned. Given the current climate emergency and increasing scarcity of global resources, it is imperative that we address this ‘blind spot’ by finding ways to support required services with less resource consumption. There is now long overdue recognition to greenhouse gas emissions ‘embodied’ in the production of building materials and construction, and its importance in reaching targets of net zero carbon by 2050. However, there is a widespread belief that we can continue to ‘build big’, provided we incorporate energy saving measures and select ‘low carbon materials’ − ignoring the fact that excessive volume and area of buildings may outweigh any carbon savings. This is especially the case with commercial real estate. As the inception and planning phases of projects offer most potential for reduction in both operational and embodied carbon, we must turn our attention to previously overlooked options such as ‘build nothing’ or ‘build less’. This involves challenging the root cause of the need, exploring alternative approaches to meet desired outcomes, and maximising the use of existing assets. If new build is required, this should be designed for adaptability, with increased stewardship, so the building stock of the future will be a more valuable and useable resource. This points to the need for increased understanding and application of the principles of strategic asset management, hitherto largely ignored in sustainability circles, which emphasize a close alignment of assets with the services they support. Arguably, as the built environment consumes more material resources and energy than any other sector, its future configuration may be critical to the future of people and the planet. In this regard, this paper seeks to break new ground for deeper exploration.
Publisher: College Publishing
Date: 06-2020
DOI: 10.3992/JGB.15.3.67
Abstract: In accordance with international protocols and directions, the APEC Energy Working Group has concentrated on constraining operational energy use and greenhouse gas (GHG) emissions in cities across the Asia Pacific, especially from the widespread consumption of fossil fuels. In addition to economy level policies and recognising the different characteristics within the region, APEC has sought to take action at the town/city level via the Low-Carbon Model Town (LCMT) project, including the development of self-assessment tools and indicator systems. However, the “low carbon” landscape is changing. There is increasing recognition of embodied carbon, accompanied by the emergence of methods for its measurement, while the C40 Cities Climate Leadership Group has recently highlighted the significance of consumption-based carbon. Similarly, the Greenhouse Gas Protocol for Cities (GPC) is likely to extend its ambit from Scope 1 GHG emissions, derived from energy use within a city boundaries, and Scope 2 emissions from grid-supplied electricity, heating and / or cooling, to Scope 3 emissions derived from materials and goods produced outside the boundaries of a city but associated with construction within that city. After describing these emerging approaches and the current landscape, the paper examines the significance and implications of these changes for APEC approaches, especially in relation to the LCMT project, its indicators and the varying characteristics of towns and cities within the Asia-Pacific region. Special attention is given to the built environment, which is known to be a major contributor to operational and embodied emissions. Consistent with the theme of the Asia-Pacific Energy Sustainable Development Forum covering “sustainable development of energy and the city,” a case is put forward for the current APEC approach to be extended to encompass both embodied and consumption-based emissions.
Publisher: Inderscience Publishers
Date: 2016
Publisher: Springer Science and Business Media LLC
Date: 04-2017
DOI: 10.1038/NATURE21680
Abstract: Finding massive galaxies that stopped forming stars in the early Universe presents an observational challenge because their rest-frame ultraviolet emission is negligible and they can only be reliably identified by extremely deep near-infrared surveys. These surveys have revealed the presence of massive, quiescent early-type galaxies appearing as early as redshift z ≈ 2, an epoch three billion years after the Big Bang. Their age and formation processes have now been explained by an improved generation of galaxy-formation models, in which they form rapidly at z ≈ 3-4, consistent with the typical masses and ages derived from their observations. Deeper surveys have reported evidence for populations of massive, quiescent galaxies at even higher redshifts and earlier times, using coarsely s led photometry. However, these early, massive, quiescent galaxies are not predicted by the latest generation of theoretical models. Here we report the spectroscopic confirmation of one such galaxy at redshift z = 3.717, with a stellar mass of 1.7 × 10
Publisher: Ubiquity Press, Ltd.
Date: 2023
DOI: 10.5334/BC.297
Publisher: Elsevier BV
Date: 2019
Publisher: Springer International Publishing
Date: 2020
Publisher: Springer Science and Business Media LLC
Date: 2009
Publisher: Springer International Publishing
Date: 2015
Publisher: Elsevier BV
Date: 03-2013
Publisher: University of South Australia
Date: 2015
Publisher: Informa UK Limited
Date: 13-06-2014
Publisher: Elsevier BV
Date: 2016
Publisher: Oxford University Press (OUP)
Date: 09-10-2018
Publisher: Springer Singapore
Date: 25-10-2015
Publisher: Elsevier BV
Date: 07-2015
Publisher: IGI Global
Date: 2008
DOI: 10.4018/978-1-60566-114-8.CH010
Abstract: This chapter introduces sustainable product service systems (S-PSS) as a means of achieving both forward and reverse supply chain utilization, leading to much improved resource productivity coupled with business and social benefits. It outlines the challenge to enable economic growth, especially in developing countries, with corresponding reduction in consumption of resources, greenhouse emissions, and waste. It is argued that S-PSS can make a significant contribution, not only in greening products, but also in poverty alleviation, employment generation, and social development. An Australian, industrybased product stewardship scheme for used computers is first outlined. The potential for S-PSS to take product stewardship to a new level is then explained, with reference to several Hewlett-Packard case studies and research involving Interface modular carpets. The author hopes that the potential for S-PSS to deliver business and social benefits with less resource use may be recognized, leading to necessary further investigation and research.
Publisher: IEEE
Date: 06-2014
Publisher: Frontiers Media SA
Date: 26-04-2021
DOI: 10.3389/FIMMU.2021.641224
Abstract: Monocytes are the third most frequent type of leukocytes in humans, linking innate and adaptive immunity and are critical drivers in many inflammatory diseases. Based on the differential expression of surface antigens, three monocytic subpopulations have been suggested in humans and two in rats with varying inflammatory and phenotype characteristics. Potential intervention strategies that aim to manipulate these cells require an in-depth understanding of monocyte behavior under different conditions. However, monocytes are highly sensitive to their specific activation state and expression of surface markers, which can change during cell isolation and purification. Thus, there is an urgent need for an unbiased functional analysis of activation in monocyte subtypes, which is not affected by the isolation procedure. Here, we present a flow cytometry-based protocol for evaluating subset-specific activation and cytokine expression of circulating blood monocytes both in humans and rats using small whole blood s les (50 - 100 μL). In contrast to previously described monocyte isolation and flow cytometry visualization methods, the presented approach virtually leaves monocyte subsets in a resting state or fixes them in their current state and allows for an unbiased functional endpoint analysis without prior cell isolation. This protocol is a comprehensive tool for studying differential monocyte regulation in the inflammatory and allogeneic immune response in vitro and vivo .
Publisher: Springer International Publishing
Date: 2015
Publisher: Springer Singapore
Date: 25-10-2015
Publisher: Routledge
Date: 04-05-2022
Publisher: Elsevier BV
Date: 2022
Publisher: American Astronomical Society
Date: 03-05-2018
Publisher: Elsevier BV
Date: 11-2009
Publisher: Wiley
Date: 21-04-2017
DOI: 10.1111/JIEC.12586
Publisher: Elsevier BV
Date: 03-2015
Publisher: Wiley
Date: 15-09-2009
Publisher: American Astronomical Society
Date: 13-04-2017
No related grants have been discovered for David Ness.