196,353 research outputs found
Investment analysis of gas-turbine combined heat and power systems for commercial buildings under different climatic and market scenarios
No full textThe aim of the proposed work is to investigate the technical and economic suitability of a gas turbine combined heat and power system in commercial buildings. These systems are widely recognised as a promising technology to provide significant fuel savings and carbon emissions reduction where they have been widely used in industrial settings due to the relatively constant electrical and thermal loads required for industrial processes. However, their deployment has been relatively stagnant over the last few decades due to challenges such as poor planning and policy measures, energy market changes and regulatory barriers. In this context, a preliminary system design and optimisation procedure has been developed based on a sensitivity analysis of different scenarios of building loads, market and weather conditions. The optimisation is performed considering several technical and environmental parameters (e.g., energy and exergy efficiencies and primary energy saving), as well as economic indexes (e.g., net present value, pay-back period, profitability, etc.). This allows the suitability assessment of the investment for different market price scenarios under different heating degree days demand scenarios. The analysis is carried out using an Italian case study as it exhibits a wide range of heating degree days variability, while subject to a single pricing market. Results show that strong correlations occur between the technical and economic performance indices and the weather conditions for all considered configurations. The methodology and conclusions, if coupled with the possibility of applying clustering techniques to determine common patterns of energy consumptions in building blocks, represent a powerful toolset to carry out preliminary techno-economic assessment of a combined heat and power system
Flexibility assessment of a combined heat-power system (CHP) with energy storage under real-time energy price market framework
No full textThe use of on-site generation can significantly enhance the primary energy savings of a building while acting as a hedge against rising electricity prices. Among other techniques, combined heat and power systems have proved to be reliable and economically suitable technologies in building applications and provision for their promotion has been set out by the European Union over the last few years. Moreover, demand side management programs can provide additional revenue streams which can further benefit the feasibility of combined heat and power technology in a commercial building while providing services to the grid network. In this context, the aim of the present paper is to investigate the techno-economic performance and energy flexibility potential for demand response programs of a gas turbine combined heat and power unit with thermal and electrical storage in commercial buildings. A short assessment overview on demand side management and demand response programs, with a special focus on combined heat and power systems, is provided to introduce the main aspects of these initiatives. Combined heat and power system, technical parameters and operating control strategies are investigated to determine their effects on system efficiencies and economics. Finally, real time pricing and energy storage are examined to establish the implications on a combined heat and power system in a demand-side management framework. Results show that savings of 7% can be obtained by the introduction of thermal energy storage systems, making them suitable for combined heat and power systems in building applications. Operating in a real-time market, the year-on-year savings associated with the combined heat and power are greater than when fixed rate tariffs are considered, especially with the electric energy storage system installed, since it allows the exploitation of price fluctuations. However, the current high investment cost of electric storage makes this solution economically unsuitable, leading to poorer combined heat and power economic performance
The dissociable influence of social context on judgements of facial attractiveness and trustworthiness
No full textThis OSF project contains the complete set of data files analysed and reported in Carragher, D. J., Thomas, N. A., & Nicholls, M. E. R. (2021). The dissociable influence of social context on judgements of facial attractiveness and trustworthiness. British Journal of Psychology. A link to the published article will be added here shortly. This project investigates whether "the cheerleader effect" also occurs for judgments of facial trustworthiness. Additionally, this project also investigates how the attributes of the target face, and those of the group, contribute to the final size of the cheerleader effect
The dissociable influence of social context on judgements of facial attractiveness and trustworthiness
No full textThis OSF project contains the complete set of data files analysed and reported in Carragher, D. J., Thomas, N. A., & Nicholls, M. E. R. (2021). The dissociable influence of social context on judgements of facial attractiveness and trustworthiness. British Journal of Psychology. A link to the published article will be added here shortly. This project investigates whether "the cheerleader effect" also occurs for judgments of facial trustworthiness. Additionally, this project also investigates how the attributes of the target face, and those of the group, contribute to the final size of the cheerleader effect
The dissociable influence of social context on judgements of facial attractiveness and trustworthiness
No full textThis OSF project contains the complete set of data files analysed and reported in Carragher, D. J., Thomas, N. A., & Nicholls, M. E. R. (2021). The dissociable influence of social context on judgements of facial attractiveness and trustworthiness. British Journal of Psychology. A link to the published article will be added here shortly. This project investigates whether "the cheerleader effect" also occurs for judgments of facial trustworthiness. Additionally, this project also investigates how the attributes of the target face, and those of the group, contribute to the final size of the cheerleader effect
Interprofessional collaboration and the care and management of type 2 diabetic patients in the Middle East: A systematic review
No full textThe World Health Organization has ranked the Middle East (ME) as the second most prevalent region globally for type 2 diabetes. Currently, treatment options initiated by physicians focus mainly on pharmaceuticals; however, lifestyle factors also have a tremendous impact on a patient’s wellness or illness. A potential solution to this issue is to use an interprofessional team approach when caring for this patient population. The purpose of this systematic review is to look at the present literature involving the use of an interprofessional team approach to the care and maintenance of people with type 2 diabetes in the ME. A PRISMA flow diagram demonstrates the authors’ literature search and screening process. The systematic review includes nine studies with mixed-methodologies performed in the Middle Eastern region in an outpatient or primary care setting, and demonstrates the use of interprofessional collaboration when providing care for type 2 diabetic patients. A meta-analysis was not included due to the heterogeneity of the studies; however, data analysis is discussed and results are demonstrated through an extraction tool developed by the authors based on The Cochrane Collaboration’s data collection form. The aim of this review is to construct meaning surrounding the use and effectiveness of this collaborative approach with the adult and geriatric Middle Eastern diabetic patient population. Recommendations include continued support from multiple healthcare professions, involving nurses, pharmacists, dietitians, and physicians to promote holistic and patient-centred-care leading to fewer type 2 diabetes complications and hospital admissions
A microbial spoilage profile of half shell Pacific oysters (Crassostrea gigas) and Sydney rock oysters (Saccostrea glomerata)
No full textAbstract not availableThomas L. Madigan, Nathan J. Bott, Valeria A. Torok, Nigel J. Percy, John F. Carragher, Miguel A. de Barros Lopes, Andreas Kiermeie
Factors that influence bystander CPR: A narrative review
No full textSudden out-of-hospital cardiac arrests are the most common cause of death worldwide. This mortality rate can be significantly reduced with the provision of bystander cardiopulmonary resuscitation. This narrative review uses a constructionist framework, and examines factors related to the provision of bystander cardiopulmonary resuscitation. Common factors include: resistance to perform the act due to various fears, lack of cardiopulmonary resuscitation education and training, legal implications around performing cardiopulmonary resuscitation, and socioeconomic variables whether or not cardiopulmonary resuscitation is initiated during out-of-hospital cardiac arrest.The authors developed a list of recommendations to enhance the provision of bystander cardiopulmonary resuscitation in out-of-hospital cardiac arrest with the ultimate aim to enhance overall survival rates during cardiac arrest. Education around the legal implications for providing bystander cardiopulmonary resuscitation needs to be widely disseminated. Support for cardiopulmonary resuscitation education and training should be provided to all individuals, including those with low socioeconomic statuses. Education should be provided around the efficacy of bystander cardiopulmonary resuscitation and the low to no risk for the bystander in relation to contracting infectious diseases
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
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