Search results for "Frame"
showing 10 items of 1767 documents
Feedback Linearizing Control of Induction Motor Considering Magnetic Saturation Effects
2015
This paper presents an input-output feedback linearization (FL) control technique for rotating induction motors, which takes into consideration the magnetic saturation of the iron core. Starting from a new formulation of the dynamic model taking into consideration the magnetic saturation expressed in a space-state form in the rotor-flux-oriented reference frame, the corresponding FL technique has been developed. To this aim, a particular care has been given to the choice of nonlinear functions interpolating the magnetic parameters versus the rotor magnetizing current and the corresponding magnetic characteristic. The proposed FL technique has been tested experimentally on a suitably develop…
INSTITUTIONAL FRAMEWORK OF THE SEUROP CLASSIFICATION SYSTEM IN ROMANIA
2015
The aim of this paper is to present the institutional framework developed by Romania in the process to implement the European Union legislation in the field of animal classification. It describes the organizations involved in the system, outlining their responsibilities related to various aspects of the sector. The results of the research are useful for other European Union candidate countries in their integration effort.
ENVIRONMENTAL FOOTPRINT REDUCTION FOR WASTEWATER TREATMENT BY MULTI-OBJECTIVE OPTIMIZATION AND MODELLING
2020
The current challenge faced by researchers and managers is minimize the environmental footprint of wastewater treatment plants (WWTPs). To accomplish this goal, other than respect legal requirements, WWTPs must provide better responses regarding consumption of energy and resources, greenhouse gas (GHG) emissions, among others. The research hereby presented is based on the application of mathematical modelling with the aim to propose a framework for the minimization of WWTP’s environmental footprint towards optimization techniques. A literature review was held to gain knowledge regarding the main decision support systems (DSS) that are applied to WWTPs since they allow selecting the most app…
Comparison between a detailed and a simplified integrated model for the assessment of urban drainage environmental impact on an ephemeral river
2008
The benefit of integrated analysis has been demonstrated in technical literature and it is also required by the EU Water Framework Directive 60/2000, which proposes a water-quality-orientated view of the whole urban drainage system and oversees new ways of assessing its performance. Integrated models, such as any complex modelling approach, often have prohibitive data availability requirements that reduce their applicability. Moreover, widely different approaches can be applied, ranging from simple conceptual models to complex physically based ones. In the present paper, two approaches have been compared using data from an experimental catchment in Bologna ( Italy), which consists of a part…
Intelaiature lignee leggere quale presidio antisismico nell'architettura tradizionale di area mediterranea
2017
L’accresciuta attenzione nei confronti degli aspetti costruttivi dell’edificato storico, associata all’analisi delle tecniche attraverso la ricerca archivistica, ma ancor più gli interventi di restauro e recupero che punteggiano i centri storici per iniziativa pubblica e privata consentono di ritrovare -nascoste anche all’occhio attento che le sa riconoscere- le intelaiature a graticcio ligneo: teatri ad intera struttura lignea, la configurazione interna di saloni ed ambienti di rappresentanza di palazzi nobiliari, chiese, conventi o monasteri ed anche l’edilizia diffusa che definiremmo “di base” testimoniano la capillare applica-zione del sistema costruttivo, con invarianti ed originalità …
Intercultural customer service encounters : a behavioral study of satisfactory and unsatisfactory service outcomes
2012
Ulkomaalaistaustaisten asukkaiden ja turistien määrä Suomessa on kasvanut huomattavasti viime vuosien aikana. Yritysten resurssien ohjaaminen tämän alati kasvavan ja ostovoimaisen asiakaskunnan tarpeiden huomioimiseen voisi edistää asiakaspalvelualan yritysten liiketoimintaa. Tällä hetkellä on kuitenkin epäselvää miten hyvin ulkomaalaisten asiakkaiden erityistarpeet on huomioitu suomalaisessa asiakaspalvelussa. Tutkimuksen tavoitteena oli tutkia asiakastyytyväisyyttä kulttuurienvälisissä asiakaspalvelutilanteissa Suomessa. Kvalitatiivinen tutkimus suoritettiin puoli-strukturoitujen teemahaastatteluiden avulla ja haastateltaviksi valittiin joukko ulkomaalaisia vaihto- ja tutkinto-opiskelijoi…
Hybrid evolutionary multi-objective optimization with enhanced convergence and diversity
2011
Evolución de la información integrada en el mundo: análisis de sus primeras etapas de formulación
2017
La Información Integrada (IR), ha sido planteada como la concreción de toda la información de las organizaciones en un único documento, el cual debe ser preparado desde una perspectiva de sostenibilidad, y cuyo objetivo debe orientarse a informar acerca de la creación de valor por parte de las organizaciones (Eccles & Krzus, 2010). El objetivo de la IR es cubrir las crecientes demandas de transparencia e inclusión, por parte de todos los stakeholders de las organizaciones. Bajo el concepto de IR, se propone que los contenidos antes desplegados en distintos informes corporativos, ahora, no sólo se presenten juntos, sino que además sean pensados y producidos de manera integrada (Jensen & Berg…
Nuevos materiales moleculares de hierro(II) multipropiedad basados en el fenómeno de transición de espín
2017
En esta Tesis Doctoral se presenta la síntesis y caracterización de una serie de materiales multifuncionales de FeII que tienen como denominador común el fenómeno de transición de espín (TS). El objetivo general es investigar sinergias entre la TS y otra propiedad fisicoquímica mediante el estudio de su estructura molecular y sus propiedades magnéticas y calorimétricas, entre otras. En el Capítulo Uno se exponen los conceptos más relevantes del fenómeno TS en el cual los centros TS experimentan una conversión de espín HS↔LS (HS: estado de espín alto, LS: estado de espín bajo) en respuesta a un estímulo externo tal como temperatura, presión, luz o la presencia de analitos. En particular, una…
Política tecnológica y agentes del sistema regional de innovación. Impacto del V PM de I+D de la UE en las regiones españolas
2008
In this paper we analyse the impact of the Fifth EU R&D Framework Programme (1998-2002) in the Spanish regions, considering the characteristics of the respective regional systems of innovation. The starting theoretical framework is the interactive pattern of technological change where the interaction among the different phases of innovation processes and between actors involved is emphasized. The important role that firms play in this process is also underlined. This model links with the concept of regional innovation systems. The contextual character of technological innovation is furthermore highlighted as well as its importance for the effectiveness of technology policies that should res…