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A Life-cycle Approach to Improve the Sustainability of Rural Water Systems in Resource-Limited Countries
Jones, Sharon A.; Anya, Abseen; Stacey, Nicholas; Weir, … - In: Challenges 3 (2012) 2, pp. 233-260
A WHO and UNICEF joint report states that in 2008, 884 million people lacked access to potable drinking water. A life …-cycle approach to develop potable water systems may improve the sustainability for such systems, however, a review of the literature … paper, we present a first step towards using life-cycle assessment to develop sustainable rural water systems in resource …
Persistent link: https://www.econbiz.de/10010675952
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Optimisation of Storage for Concentrated Solar Power Plants
Cirocco, Luigi; Belusko, Martin; Bruno, Frank; Boland, John - In: Challenges 5 (2014) 2, pp. 473-503
The proliferation of non-scheduled generation from renewable electrical energy sources such concentrated solar power (CSP) presents a need for enabling scheduled generation by incorporating energy storage; either via directly coupled Thermal Energy Storage (TES) or Electrical Storage Systems...
Persistent link: https://www.econbiz.de/10011098114
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An Evolutionary Optimizer of<em> libsvm</em> Models
Horvath, Dragos; Brown, J. B.; Marcou, Gilles; Varnek, … - In: Challenges 5 (2014) 2, pp. 450-472
This user guide describes the rationale behind, and the modus operandi of a Unix script-driven package for evolutionary searching of optimal Support Vector Machine model parameters as computed by the libsvm package, leading to support vector machine models of maximal predictive power and...
Persistent link: https://www.econbiz.de/10011099345
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A New Compendium of Soil Respiration Data for Africa
Epule, Terence Epule - In: Challenges 6 (2015) 1, pp. 88-97
The objective of this paper is to present to the scientific community a new dataset derived from existing literature on soil respiration in Africa. The data has thus been obtained by searching for records in peer review papers and grey literature. The main search engines used are: Scientific...
Persistent link: https://www.econbiz.de/10011268476
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Perspectives of Feedstock Supply for Biomass-Based Energy Plant Development in India: Views from an Expert Survey
Hassan, Md. Kamrul; Natarajan, Karthikeyan; Pelkonen, Paavo - In: Challenges 6 (2015) 1, pp. 71-87
Utilization of renewable energy resources is imperative due to energy access, energy security, and energy sustainability coupled with the rising environmental concern. India is one of the largest land mass countries in the world and amply bestowed with biomass resources. Investigations on...
Persistent link: https://www.econbiz.de/10011268477
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Acknowledgement to Reviewers of <i>Challenges</i> in 2014
Challenges Editorial Office - In: Challenges 6 (2015) 1, pp. 1-2
The editors of <i>Challenges</i> would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2014:[...]
Persistent link: https://www.econbiz.de/10011118289
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Retrofitting Precincts for Heatwave Resilience: Challenges and Barriers in Australian Context
Hatvani-Kovacs, Gertrud; Boland, John - In: Challenges 6 (2015) 1, pp. 3-25
, indicators—such as excess morbidity, electricity and water consumption—are considered. The intensity of UHWs is calculated using …
Persistent link: https://www.econbiz.de/10011123000
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The Italian University Habilitation and the Challenge of Increasing the Representation of Women in Academia
Pautasso, Marco - In: Challenges 6 (2015) 1, pp. 26-41
<b> </b>Increasing the representation of women in academia is a priority challenge in higher education policy. This study uses data from the Italian University habilitation competition in 2012 to test whether this national, standardized and quantitative assessment of researchers contributed to...
Persistent link: https://www.econbiz.de/10011199199
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Electromagnetic Wave Scattering by Small Impedance Particles of an Arbitrary Shape and Applications
Ramm, Alexander G. - In: Challenges 5 (2014) 1, pp. 35-42
The proposal deals with electromagnetic (EM) wave scattering by one and many small impedance particles of an arbitrary shape. Analytic formula is derived for EM wave scattering by one small impedance particle of an arbitrary shape and an integral equation for the effective field in the medium...
Persistent link: https://www.econbiz.de/10010739814
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Prebiotic Phosphorylation Reactions on the Early Earth
Gull, Maheen - In: Challenges 5 (2014) 2, pp. 193-212
Phosphorus (P) is an essential element for life. It occurs in living beings in the form of phosphate, which is ubiquitous in biochemistry, chiefly in the form of C-O-P (carbon, oxygen and phosphorus), C-P, or P-O-P linkages to form life. Within prebiotic chemistry, several key questions...
Persistent link: https://www.econbiz.de/10010798805