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Now showing items 3681-3690 of 3805
Vanishing efficiency of speeded-up quantum Otto engines
(IOP, 2019-08-28)
We assess the energy cost of shortcuts to adiabatic expansions or compressions of a harmonic oscillator, the power strokes of a quantum Otto engine. Difficulties to identify the cost stem from the interplay between different ...
Student-generated online videos to develop cross-curricular and curricular competencies in Nursing Studies.
(Elsevier, 2013-07-06)
In response to the necessity of implementing innovative strategies and new teaching methodologies for the design of University degrees curricula according to the new educational model put forward by the European Space of ...
Additive manufacturing technologies for biomedical engineering applications: Research trends and scientific impact
(EPI, 2019-03-23)
Additive Manufacturing (AM) technologies, technologies that produce three-dimensional parts layer by layer from a ma-terial, have the potential to revolutionize the paradigm of manufacturing. Furthermore, in recent years ...
Incorporating the life-course approach into shrinking cities assessment: the uneven geographies of urban population decline
(Taylor & Francis, 2019-06-24)
The demographic dynamics of urban areas is highly relevant for urban and regional planning, in a global context marked by rapid socioeconomic changes and growing competition between cities. Demographic and economic decline ...
Synthesis of waterborne polyurethane-urea dispersions with chain extension step in homogeneous and heterogeneous media
(Elsevier, 2016-05-13)
[EN Hypothesis: The possibility of tailoring the final properties of environmentally friendly waterborne
polyurethane and polyurethane-urea dispersions and the films they produce makes them attractive for
a wide range ...
Patentometric: monitoring the scientific and technological trends of Additive Manufacturing in Medical Applications
(Universitat Politecnica de Valencia, 2019)
Patents are a means of protecting inventions developed by firms, institutions or individuals, and they may be interpreted as indicators of invention. Patents indicators convey information on the processes of inventive ...
Tracking the evolution of waste recycling research using overlay maps of science
(Elsevier, 2012)
Tracking the evolution of research in waste recycling science (WRS) can be valuable for environmental agencies, as well as for recycling businesses. Maps of science are visual, easily readable representations
of the ...
Synthesis and characterisation of polyurethane elastomers with semi-products obtained from polyurethane recycling.
(2016-10-01)
In this work polyurethane elastomers were synthesised by using different mixtures of a petrochemical and glycerolysate polyols and 4,4-diphenylmethane diisocyanate (MDI). Glycerolysate polyol was produced from polyurethane ...
Sugar–peptidic bond interactions: spectroscopic characterization of a model system
(2017-04-11)
Sugars are small carbohydrates which perform numerous roles in living
organisms such as storage of energy or as structural components. Modifications of specific sites
within the glycan chain can modulate a carbohydrate’s ...
A Method for the Detection and Characterization of Technology Fronts: Analysis of the Dynamics of Technological Change in 3D Printing Technology
(Institut Català de Paleoecologia Humana i Evolució Social, 2019-01-07)
This paper presents a method for the identification of the "technology fronts"-core technological solutions-underlying a certain broad technology, and the characterization of their change dynamics. We propose an approach ...