4,984 research outputs found
Life cycle assessment of photovoltaic implementation: an Italian case study
The energy efficiency is the possibility and ability to carry out a production process consume with the involves of less energy and minor environmental impact. Life Cycle Assessment is one of the major tools involved in the economic, social and environmental evaluation. The aim of this work is the LCA application to an Italian company that provides to install a photovoltaic plant for the energy self-maintenance, in order to break down costs and environmental impacts. The photovoltaic business can be an interesting solution especially for companies which consume more energy during the day. In the case study was highlighted that an average of 400.00 €/month was spent, equal to about 900 kWh / month. The company installed a 10 kWp photovoltaic system and with this implementation the energy consumption diminished of 84% and the costs of 57%
Nursing leadership in the European landscape: influence, reality and politics
Demonstrating the impact and effectiveness of nursing leadership, influence and power within the European space is a challenging endeavour. Using the example of the European Directive on Professional Qualifications (2005/36/EC) and its successor legislation (Modernised Directive 2013/55/EU), this paper reviews the collaborative strategies, drivers and leadership actions which have influenced the recent legislation, albeit without complete success. Looking to the future, it is argued that nursing will struggle to achieve further positive political outcomes until there is a more coherent, assertive and collaborative leadership at pan-European level. Given the complexity of the European ‘trilogue’, namely the co-decision powers and interactions between the European Parliament, Commission, and Council, it is essential that far-reaching and sustained network(s) of influence are established within each country, including prospective accession countries. A failure to co-ordinate, co-operate, strategically lobby, garner research evidence and argue for standards of education, practice, care and workforce conditions, could lead to significant threats to public protection and safety. Drawing upon the related historical and contemporary context, sources of contemporary leadership, ‘absent and strident voices’ and European Union (EU) policy drivers, recommendations for future leadership directions are proposed. Political engagement is crucial to enabling reforms for the next Directive revision
Domain wall displacement in Py square ring for single nanometric magnetic bead detection
A new approach based on the domain wall displacement in confined
ferromagnetic nanostructures for attracting and sensing a single nanometric
magnetic particles is presented. We modeled and experimentally demonstrated the
viability of the approach using an anisotropic magnetoresistance device made by
a micron-size square ring of Permalloy designed for application in magnetic
storage. This detection concept can be suitable to biomolecular recognition,
and in particular to single molecule detection.Comment: 8pages, 3figure
Force sensors for active safety, stability enhancement and lightweight construction of road vehicles
Force and moment measurement at different locations within road vehicles is a multifaceted, comprehensive and forthcoming technology that might play a breakthrough role in automotive engineering. The paper aims to describe why such technology seems so promising. A literature review is accomplished on which forces can be measured and what can be obtained with force and moment data. Additionally, attention is devoted to where–and how–force and moments can be measured effectively. Force and moment measurement technology is also studied with an historical perspective, briefly analysing the past applications. Active safety systems (ADAS up to full automated driving) and automotive stability enhancement systems are expected to be impacted by the measurement of forces and moments at the wheels. Friction potential evaluation and driver model development and monitoring have been–and are expected to be–major field of research. Force and moment measurement technology may also be exploited for lightweight construction purposes with remarkable synergistic effects with active safety and stability enhancement systems. Possible innovations on lightweight construction and sustainable mobility are to be expected thanks to force and moment measurement
Semantic annotation in ubiquitous healthcare skills-based learning environments
This paper describes initial work on developing a semantic annotation system for the augmentation of skills-based learning for Healthcare. Scenario driven skills-based learning takes place in an augmented hospital ward simulation involving a patient simulator known as SimMan. The semantic annotation software enables real-time annotations of these simulations for debriefing of the students, student self study and better analysis of the learning approaches of mentors. A description of the developed system is provided with initial findings and future directions for the work.<br/
Talking about persons--thinking about patients: An ethnographic study in critical care.
BACKGROUND: Nursing involves caring for the 'whole person' and it is considered inappropriate for nurses to think or talk about patients in objectifying or dehumanising ways. Objectifying discourses can dominate within the arena of critical care, and critical care nurses can experience moral distress as they struggle to think about patients as persons. No previous study has examined the role played by 'impersonal' talk in the delivery of nursing care. This paper reports a study which examined the relationship between nursing practice and the way(s) in which critical care nurses think and talk about patients. OBJECTIVES: The study objectives were to (1) identify and characterise the ways in which critical care nurses think and talk about patients; and (2) describe patterns of nursing practice associated with these different ways of thinking. STUDY DESIGN: An ethnographic study was undertaken within one critical care unit in the United Kingdom. Data were collected over 8 months through 92h of participant observation and 13 interviews. Seven critical care nurses participated in the study. Data analysis adopted the perspective of linguistic ethnography. FINDINGS: Analysis of these data led to the identification of seven Discourses, each of which was characterised by a particular way of talking about patients, a particular way of thinking about patients, and a particular pattern of practice. Four of these seven Discourses were of particular significance because participants characterised it as 'impersonal' to think and talk about patients as 'routine work', as a 'body', as '(un)stable' or as a 'medical case'. Although participants frequently offered apologies or excuses for doing so, these 'impersonal' ways of thinking and talking were associated with practice that was essential to delivering safe effective care. CONCLUSIONS: Critical care practice requires nurses to think and talk about patients in many different ways, yet nurses are socialised to an ideal that they should always think and talk about patients as whole persons. This means that nurses can struggle to articulate and reflect upon aspects of their practice which require them to think and talk about patients in impersonal ways. This may be an important source of distress to critical care nurses and emotional exhaustion and burnout can arise from such dissonance between ideals and the reality of practice. Nursing leaders, scholars and policy makers need to recognise and legitimise the fact that nurses must think about patients in many ways, some of which may be considered impersonal
Multi-fidelity surrogate-based optimal design of road vehicle suspension systems
Ride comfort is a relevant performance for road vehicles. The suspension system can filter vibration caused by the uneven road to improve ride comfort. Optimization of the road vehicle suspension system has been extensively studied. As detailed models require significant computational effort, it becomes increasingly important to develop an efficient optimization framework. In this work, a multi-fidelity surrogate-based optimization framework based on the Approximate Normal Constraint method and Extended Kernel Regression surrogate modeling method is proposed and applied. An analytical model and a multi-body model of the suspension system are used as the low-fidelity and high-fidelity models, respectively. Compared with other well-known methods, the proposed method can provide good accuracy and high efficiency. In addition, the proposed method is applied to different types of vehicle suspension optimization problems and shows good robustness and efficiency
Thermal Management of Electrified Vehicles—A Review
Vehicle electrification demands a deep analysis of the thermal problems in order to increase vehicle efficiency and battery life and performance. An efficient thermal management of an electrified vehicle has to involve every system of the vehicle. However, it is not sufficient to optimize the thermal behavior of each subsystem, but thermal management has to be considered at system level to optimize the global performance of the vehicle. The present paper provides an organic review of the current aspects of thermal management from a system engineering perspective. Starting from the definition of the requirements and targets of the thermal management system, each vehicle subsystem is analyzed and related to the whole system. In this framework, problems referring to modeling, simulation and optimization are considered and discussed. The current technological challenges and developments in thermal management are highlighted at vehicle and component levels
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