Search results for "construct"

Boosting the performance of a Reverse Electrodialysis – Multi-Effect Distillation Heat Engine by novel solutions and operating conditions

2019

Abstract This work presents a performance analysis of a waste-heat-to-power Reverse Electrodialysis Heat Engine (RED-HE) with a Multi-Effect Distillation (MED) unit as the regeneration stage. The performance of the system is comparatively evaluated using two different salts, sodium chloride and potassium acetate, and investigating the impact of different working solutions concentration and temperature in the RED unit. For both salt solutions, the impact of membrane properties on the system efficiency is analysed by considering reference ionic exchange membranes and high-performing membranes. Detailed mathematical models for the RED and MED units have been used to predict the thermal efficie…

¿Por qué conservamos la biodiversidad? Un breve recorrido sociológico, psicológico y moral

2017

espanolEn este trabajo se muestran, de manera muy sucinta, algunos conceptos fundamentales sobre los valores que subyacen en la toma de las decisiones sobre la conservacion de la biodiversidad, asi como las bases psicologicas de la deliberacion en este contexto. Para ello, se describe, en primer lugar, un modelo sociologico clasico que ayuda a predecir la asignacion de recursos para la conservacion, basado en la construccion social y el poder “politico” oculto de las diferentes especies. En segundo lugar, se vincula dicho modelo con la taxonomia de valores subyacentes (no necesariamente excluyentes). Finalmente, se discute la base psicologica de la deliberacion valorativa a partir de la teo…

Use of cultured human epithelium for coverage: a defect of radial forearm free flap donor site

2010

The radial forearm free flap has been popular in many areas of reconstructive surgery. Despite the many attributes of this flap in maxillofacial reconstruction, one of the disadvantages has been the morbidity of the donor site. Allogeneic cultured epidermis has been successfully applied on large second degree burns and on chronic leg ulcers. Autologous human keratinocytes and fibroblast equivalents can be cultured in-vitro from a small skin sample in order to produce a sufficient amount of epithelial autografts to cover the large defects of third-degree burn wounds. Interestingly, transplanted cultured epidermis retains characteristics of the original donor site. We report a case of a patie…

Why Moral Neuroeducation Should Embrace Ethical Humour

2019

Smiling and laughter are voluntary expressions that come from deep within ourselves. They are reflections of the character we construct through the exercise of our own will. Given that we can laugh in an ethically correct or incorrect manner, an “ethical sense of humour” reflects to what extent an individual’s ethics education has been correctly taught. “Ethical humour” is also therapeutic, in the sense that it is beneficial for one’s health. For example, it stimulates the immune system to fight the negative effects of stress, and stimulates the secretion of endorphins, which have an analgesic effect. Neuroscientific studies have demonstrated, among other things, that the cerebellum plays a…

Membrane Bioreactors for wastewater reuse: Respirometric assessment of biomass activity during a two year survey

2018

Abstract Stricter effluent limits, water shortage conditions, land availability requires today even more the needs of advanced wastewater treatments. Attractive solutions come from membrane bioreactors (MBR), Integrated Fixed Film Activated Sludge (IFAS) or combinations (i.e., IFAS-MBRs). One crucial aspect for the applicability of this overall new technology, compared to the conventional activated sludge systems, is the lack of knowledge for design and manage (e.g., kinetic constants, optimal operative conditions etc.). In view of the above frame, the aim of the present study was to assess the kinetic and stoichiometric parameters of bacterial species in MBRs by means of respirometric tech…

Combined Ligament Injuries of the Knee: Anterior Cruciate Ligament/Posterolateral Corner and Medial Collateral Ligament/Posterior Cruciate Ligament—D…

2012

Evaluación de la investigación sobre la pedagogía Construcción de Conocimiento: un enfoque metodológico mixto

2020

Knowledge Building (KB) is a theoretical framework that promotes collective inquiry through the resolution of knowledge problems that are relevant for certain educational community. There is an increasing number of authors looking into benefits of this approach, thus an overview of the trends of research is needed. The aim of this study is to provide the state of the art concerning the research production on Knowledge Building pedagogy including trends and relevant issues. In this study a sequential explanatory design was applied. Both quantitative (scientometric analysis) and qualitative (systematic review) approaches were applied. The sample was selected from the most recent productions p…

Measuring innovation in long product development cycle industries: an insight in biotechnology

2009

This paper examines and measures innovation in the context of biotechnology firms by analysing the link between R&D, innovation performance and organisational growth. We conceptualise innovation performance as a latent construct with two dimensions: innovation efficacy and innovation efficiency. We use structural equations modelling to test the hypotheses on a data set from the biotechnology industry. Results support our innovation performance conceptualisation which is found to be especially useful to measure innovation in industries with long product development cycles. Findings also underline the importance of R&D knowledge creation for biotechnology firms.

Population targeted requirements acquisition

2018

ABSTRACTWe use social science theories, design science research methodology, and our experience in five development projects to design principles for selecting or adapting requirements acquisition (RA) techniques for use with populations of customers and users. The information systems (IS) literature has not systematically focused on the adaption of RA techniques to particular populations. We developed a nascent design theory for RA to target specific populations to define functional requirements for new IS. Five reference theories – personal construct theory, theory of disability, diffusion of innovations, social actor theory, and media richness and information synchronicity theory – suppo…

SEMANTIC MANAGEMENT OF INTELLIGENT MULTI-AGENTS SYSTEMS IN A 3D ENVIRONMENT

2011

8 pages; International audience; This paper presents a new approach combining the 3D elements composing the environment of mobile agents with semantic descriptors from Building Information Models. Our proposal is based on the IFC standard, which is used in the field of Civil Engineering to build digital models of buildings during the design phase. The semantic of IFC objects composing the 3D environment is used to select and set up 3D objects and elements of simulation scenarios. The result of this process dynamically generates the input files for the JaSIM environment that performs the simulation. These files deserve the representation of the virtual environment in which the simulation is …