ORCID Profile
0000-0001-5737-8117
Current Organisations
South Australia Department for Energy and Mining
,
University of South Australia
,
Handelshoyskolen BI
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Publisher: Cambridge University Press
Date: 23-05-2017
Publisher: Elsevier BV
Date: 09-2020
Publisher: Cambridge University Press
Date: 23-05-2017
Publisher: Elsevier BV
Date: 02-2022
Publisher: Emerald
Date: 02-07-2018
DOI: 10.1108/IJMPB-01-2018-0002
Abstract: The purpose of this paper is twofold: to identify how horizontal leaders (within project teams) execute their leadership task in the context of balanced leadership and to pinpoint scenarios that can occur when horizontal leaders are identified and empowered by the vertical leader (senior or project managers) and a project task is handed over to them to lead. This research is based on the concept of balanced leadership, which conceptualizes leadership as a dynamic, situation-dependent transition of leadership authority from a vertical leader (like a project manager) to a horizontal leader (a project team member) and back again, in order to contribute positively to a project’s success. Balanced leadership consists of five events (nomination, identification, empowerment, horizontal leadership and its governance, and transition). This paper focuses on the fourth event, and its specific aspect of leadership distribution between horizontal and vertical leader. This event begins when a team member(s) accepts the empowerment to assume the role of horizontal leader. This paper explicitly links the leadership style of the vertical leader based on Frame’s (1987) leadership styles and the nature of decisions taken by both the vertical and horizontal leaders to deliver the project. The method used for this paper is the qualitative phase of a sequential mixed methods (qualitative-quantitative) study. Data were collected through case studies in four different countries, using a maximum variety s ling approach. Data collection was through interviews of vertical leaders (senior leaders who were often sponsors of projects or members of senior management or project managers) and horizontal leaders (team leaders or members) in a variety of industry sectors. Data analysis was done through initial coding and constant comparison to arrive at themes. Thematic analysis was used to gain knowledge about the split of leadership and decision-making authority between the horizontal and vertical leader(s). The results show that for Canadian and Australian projects, a combination of autocratic and democratic leadership styles were used by vertical leaders. In the case of Scandinavian projects, a democratic leadership style has been observed. Linked to these leadership styles, the horizontal decision making is predominantly focused on technical decisions and to daily task decisions to deliver the project. Delegation occurs most of the time to one specific team member, but occasionally to several team members simultaneously, for them to work collaboratively on a given issue. The paper supports a deeper investigation into a leadership theory, by validating one particular event of the balanced leadership theory, which is based on Archer’s (1995) realist social theory. The findings from this paper will guide organizations to facilitate an effective approach to balancing the leadership roles between vertical and horizontal leaders in their projects. The findings can also be used to develop horizontal leaders to take up more responsibilities in projects. The originality lies in the new leadership theory called balanced leadership, and its empirical validation. It is the first study on the leadership task distribution between vertical and horizontal leadership in projects. Its value is new insights, which allow practitioners to develop practices to find and empower the best possible leader at any given time in the project and academics to develop a more dynamic and, therefore, more realistic theory on leadership as it unfolds in projects.
Publisher: Informa UK Limited
Date: 07-07-2015
Publisher: MDPI AG
Date: 13-04-2022
DOI: 10.3390/S22082987
Abstract: Water quality monitoring is an essential component of water quality management for water utilities for managing the drinking water supply. Online UV-Vis spectrophotometers are becoming popular choices for online water quality monitoring and process control, as they are reagent free, do not require s le pre-treatments and can provide continuous measurements. The advantages of the online UV-Vis sensors are that they can capture events and allow quicker responses to water quality changes compared to conventional water quality monitoring. This review summarizes the applications of online UV-Vis spectrophotometers for drinking water quality management in the last two decades. Water quality measurements can be performed directly using the built-in generic algorithms of the online UV-Vis instruments, including absorbance at 254 nm (UV254), colour, dissolved organic carbon (DOC), total organic carbon (TOC), turbidity and nitrate. To enhance the usability of this technique by providing a higher level of operations intelligence, the UV-Vis spectra combined with chemometrics approach offers simplicity, flexibility and applicability. The use of anomaly detection and an early warning was also discussed for drinking water quality monitoring at the source or in the distribution system. As most of the online UV-Vis instruments studies in the drinking water field were conducted at the laboratory- and pilot-scale, future work is needed for industrial-scale evaluation with ab appropriate validation methodology. Issues and potential solutions associated with online instruments for water quality monitoring have been provided. Current technique development outcomes indicate that future research and development work is needed for the integration of early warnings and real-time water treatment process control systems using the online UV-Vis spectrophotometers as part of the water quality management system.
Publisher: Springer Science and Business Media LLC
Date: 13-11-2017
DOI: 10.1007/S11356-017-0696-5
Abstract: With an exponential increase in urbanization and industrialization, water pollution is an inevitable consequence of relatively lagging wastewater treatment facilities. The conventional activated sludge process for wastewater treatment primarily emphasizes the removal of harmful substances to maintain increasingly stringent effluent discharged standards, which is considered an energy-intensive technique. Therefore, innovative and sustainable wastewater treatment should pay more attention to energy and resource recovery in dealing with fossil fuel depletion, global-scale energy security, and climate change. A bibliometric analysis was applied to trace wastewater-energy nexus-related research during the period 1991 to 2015, with respect to the Science Citation Index EXPANDED (SCI-EXPANDED) database. Journal of Hazardous Materials, ranking 1st in h-index (79), was the most productive journal (431, 4.5%) during the same time, followed by International Journal of Hydrogen Energy (422, 4.4%) and Water Research (393, 4.1%) journal, the latter owning a topmost journal impact factor. Though, China (2154, 22.5%) was the most productive country, while the USA with highest h-index (88) was the favorest collaborative country. The Chinese Academy of Sciences, China (241, 2.5%) produced the maximum publications. A novel method called "word cluster analysis" showed that the emerging sustainable processes and novel renewable energy application are applied in response to the desire for a net wastewater-energy nexus system. Based on different wastewater types, the emerging energy and sources recovery treatment processes of Anammox, anaerobic digestion, and microbial fuel cells gained extensive innovation. Evaluation indicators including sustainability, life cycle assessment, and environmental impact were appropriately used to dissert feasibility of the novel treatment methods in regard of renewable energy utilization, energy savings, and energy recovery. The transformation of the new concept of "broaden income source, economize on expenditures and exploit inner potential" should be generalized in order to achieve an environmentally sustainable development of wastewater-energy nexus system.
Publisher: Emerald
Date: 10-05-2022
DOI: 10.1108/IJMPB-06-2021-0147
Abstract: The purpose of this paper is to investigate and discuss stakeholder issues faced by renewable energy megaprojects and in particular solar and wind power projects and their relevance to socioeconomic evaluation of megaprojects. The paper uses secondary data collected from the recent literature published on stakeholder issues face by mega solar and wind power energy generation projects around the world. The issues are then analysed across specific challenges in five continents where these projects are being developed. The paper then focuses on the literature on energy justice to elaborate the type of issues being faced by renewable energy megaprojects contributing to the achievement of UN Sustainable Goal 7 and their impact on vulnerable communities where these projects are situated. Renewable energy megaprojects are rarely discussed in the project management literature on megaprojects despite their size and importance in delivering sustainable development goals. While these projects provide social benefits they also create issues of justice due to their impact of vulnerable populations living is locations where these projects are situated. The justice issues faced include procedural justice, distributive justice, recognition inequalities. The type of justice issues was found to vary intensity in the developed, emerging and developing economies. It was found that nonprofit organisations are embarking on strategies to alleviate energy justice issues in innovative ways. It was also found that, in some instances, smaller local projects developed with community participation could actually contribute more equitable to the UN sustainable development goals avoiding the justice issues posed by mega renewable energy projects. The research uses secondary data due to which it is difficult to present a more comprehensive picture of stakeholder issues involving renewable energy megaprojects. The justice issues revealed through thesis paper with renewable energy megaprojects are also present in conventional megaprojects which have not been discussed in the project management literature. Post-COVID-19 these justice issues are likely to become mor prevalent due to the pandemic's impact on vulnerable population exacerbating the issues and increasing their severity on these populations. Therefore it is becoming even more critical to take these into account while developing renewable energy megaprojects. Proper identification and response to energy justice issues can help in alleviating stakeholder issues in renewable energy megaprojects. Contributes to the equitable achievement of the United Nations Sustainable Development Goal 7. This paper addresses a gap in the project management literature on the exploration of stakeholder issues on renewable energy megaprojects. It also brings out the importance of justice issues which can assist in expanding stakeholders issues faced by megaprojects as these issues have not received sufficient attention in the past in the project management literature.
Publisher: Elsevier BV
Date: 11-2014
Publisher: Elsevier BV
Date: 2018
Publisher: Routledge
Date: 09-2016
Publisher: Springer Science and Business Media LLC
Date: 31-10-2021
Publisher: Springer Science and Business Media LLC
Date: 03-06-2016
Publisher: Springer Science and Business Media LLC
Date: 09-09-2015
Publisher: Cambridge University Press
Date: 23-05-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA05211H
Abstract: In this study, an integrated granular activated carbon (GAC) adsorption/microwave (MW) irradiation process was used for the treatment of ester-containing wastewater from a lithium-ion battery (LIB) factory.
Publisher: American Chemical Society (ACS)
Date: 24-12-2020
Publisher: SAGE Publications
Date: 08-2013
DOI: 10.1002/PMJ.21350
Abstract: This study investigates the variety of ethical decisions of project managers and their impact from corporate governance and project governance structures. The roles of personal trust and system trust as a mechanism to steer ethical decision making in different governance settings is explored. Nine qualitative case studies in Europe, Asia, and Australia show that ethical decision making is contingent on trust, which in turn is contingent on the fulfillment of personal expectations within a given governance structure. The findings show the prerequisites for ethical decision making and the consequences of lack of trust. Further managerial and theoretical implications are discussed.
Publisher: Cambridge University Press
Date: 23-05-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA14575A
Abstract: This work investigated the effectiveness of a combination of microbubble-ozonation and ultraviolet (UV) irradiation for the treatment of secondary wastewater effluent of a wet-spun acrylic fiber manufacturing plant.
Publisher: Springer Science and Business Media LLC
Date: 03-2018
DOI: 10.1007/S00253-018-8844-5
Abstract: With rapid industrialization and urbanization in the nineteenth century, the activated sludge process (ASP) has experienced significant steps forward in the face of greater awareness of and sensitivity toward water-related environmental problems. Compared with conventional flocculent ASP, the major advantages of granular sludge are characterized by space saving and resource recovery, where the methane and hydrogen recovery in anaerobic granular and 50% more space saving, 30-50% of energy consumption reduction, 75% of footprint cutting, and even alginate recovery in aerobic granular. Numerous engineers and scientists have made great efforts to explore the superiority over the last 40 years. Therefore, a bibliometric analysis was desired to trace the global trends of granular sludge research from 1992 to 2016 indexed in the SCI-EXPANDED. Articles were published in 276 journals across 44 subject categories spanning 1420 institutes across 68 countries. Bioresource Technology (293, 11.9%), Water Research (235, 9.6%), and Applied Microbiology and Biotechnology (127, 5.2%) dominated in top three journals. The Engineering (991, 40.3%), China (906, 36.9%), and Harbin Inst Technol, China (114, 4.6%) were the most productive subject category, country, and institution, respectively. The hotspot is the emerging techniques depended on granular reactors in response to the desired removal requirements and bio-energy production (primarily in anaerobic granular sludge). In view of advanced and novel bio-analytical methods, the characteristics, functions, and mechanisms for microbial granular were further revealed in improving and innovating the granulation techniques. Therefore, a promising technique armed with strengthened treatment efficiency and efficient resource and bio-energy recovery can be achieved.
Publisher: Elsevier BV
Date: 12-2016
DOI: 10.1016/J.JES.2016.03.020
Abstract: A three-dimensional electrochemical oxidation (3D-EC) reactor with introduction of activated carbon (AC) as particle micro-electrodes was applied for the advanced treatment of secondary wastewater effluent of a wet-spun acrylic fiber manufacturing plant. Under the optimized conditions (current density of 500A/m
Publisher: Springer Science and Business Media LLC
Date: 20-10-2020
Publisher: Elsevier BV
Date: 12-2022
Publisher: Cambridge University Press
Date: 23-05-2017
Abstract: In recent years, organizational project management (OPM) has emerged as a field focused on how project, program and portfolio management practices strategically help firms realize organizational goals. There is a compelling need to address the totality of project-related work at the organizational level, providing a view of organizations as a network of projects to be coordinated among themselves, integrated by the more permanent organization, and to move away from a focus on in idual projects. This comprehensive volume provides views from a wide range of international scholars researching OPM at a cross-disciplinary level. It covers concepts, theories and practices from disciplines allied to management, such as strategic management, organization sciences and behavioural science. It will be a valuable read for scholars and practitioners alike, who are looking to enrich their understanding of OPM and further investigate this new phenomenon.
Publisher: Elsevier BV
Date: 04-2015
DOI: 10.1016/J.JHAZMAT.2015.01.069
Abstract: This work investigated microbubble-ozonation for the treatment of a refractory wet-spun acrylic fiber wastewater in comparison to macrobubble-ozonation. CODcr, NH3-N, and UV254 of the wastewater were removed by 42%, 21%, and 42%, respectively in the microbubble-ozonation, being 25%, 9%, and 35% higher than the removal rates achieved by macrobubble-ozonation at the same ozone dose. The microbubbles (with average diameter of 45μm) had a high concentration of 3.9×10(5) counts/mL at a gas flow rate of 0.5L/min. The gas holdup, total ozone mass-transfer coefficient, and average ozone utilization efficiency in the microbubble-ozonation were 6.6, 2.2, and 1.5 times higher than those of the macrobubble-ozonation. Greater generation of hydroxyl radicals and a higher zeta potential of the bubbles were also observed in the microbubble ozonation process. The biodegradability of the wastewater was also significantly improved by microbubble-ozonation, which was ascribed to the enhanced degradation of alkanes, aromatic compounds, and the many other bio-refractory organic compounds in the wastewater. Microbubble-ozonation can thus be a more effective treatment process than traditional macrobubble-ozonation for refractory wastewater produced by the acrylic fiber manufacturing industry.
Publisher: Springer Science and Business Media LLC
Date: 06-08-2018
DOI: 10.1007/S11356-018-2866-5
Abstract: With rapid urbanisation and industrialisation, land-use practice, while satisfying the ever-increasing desires of our material civilisation in the short term, may undermine natural ecosystems on a local, regional and global scale in the long run. Innovative and sustainable land-use practices should be developed in response, so that eco-environmental problems can assessed and dealt with during the whole process of land-use planning, construction, operation, maintenance and management. Using a bibliometric analysis, this study has traced global trends in land-use research from 1992 to 2016, as indexed in the Science Citation Index EXPANDED (SCI-EXPANDED) and the Social Sciences Citation Index (SSCI). A novel method called 'word cluster analysis' has revealed that hotspot analysis is one of the emerging techniques, tools and strategies used to respond to, improve, and protect deteriorating ecosystems during land use. Based on involving various elements, the emerging analytical techniques and tools, including geographical information systems (GIS) and remote sensing, have attracted attention for their ability to assess and solve increasingly serious eco-environmental problems, such as climate change, deforestation, soil erosion, greenhouse gas (GHG) emissions and eutrophication. Ecosystem services, bio ersity conservation, protected areas, and sustainable development are also potential resilience strategies used to confront eco-environmental destruction. The maximum benefits that can be derived from natural ecosystems should be pursued to achieve environmentally sustainable land-use development, strengthening the socio-economy and eco-environment, as well as enhancing the well-being of people and nature.
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Ralf Müller.