315,861 research outputs found
RAMS engineering : advancement of system safety of avionic equipment
No full textLAUREA MAGISTRALELo scopo di questa tesi è di mostrare l’importanza e il progresso del ramo di ingegneria RAMS, denotata come l’analisi della sicurezza di un sistema, relativa, per questa tesi, principalmente alle apparecchiature avioniche utilizzate su aeromobili ed elicotteri.
Questa tesi è stata sviluppata e condotta con Pariani SRL, azienda storica con sede a Samarate che da oltre quarant’anni progetta e produce internamente prodotti innovativi caratterizzati da una forte integrazione tra meccanica, hardware e software.
All’inizio verrà fornita una panoramica dell’ingegneria RAMS, la sua definizione e si evidenzierà perché è così importante per la sicurezza dei sistemi tecnici.
Dopo aver descritto la struttura alla base dell’ingegneria RAMS, gli standard su cui si basa e come viene implementata nel sistema tecnico, verrà mostrato un caso di studio.
Infine, verrà mostrato il progresso futuro della RAMS e verranno discussi possibili sviluppi.The purpose of this thesis is to show the importance and progress of RAMS engineering, denoted as the analysis of system safety, related, for this thesis, mainly on avionic equipment used on aircrafts and helicopters.
This thesis has been developed and conducted with Pariani SRL, a historical company based in Samarate that for over forty years has been designing and producing innovative products internally characterized by a strong integration between mechanics, hardware and software.
In the beginning, it will be given an overview of RAMS, its definition and highlight why it is so important for the safety of technical systems.
After describing the structure behind RAMS engineering, the standards which it is based on, and how it is implemented on technical system, a case study will be shown.
In the end, the future progress of RAMS will be shown and possible developments will be discussed
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Análisis e investigación de la internacionalización de las PYMES gallegas
No full textFil: Estevez, Horacio A.. Universidad de Buenos Aires. Facultad de Ciencias Económicas. Buenos Aires, Argentina
Transformación digital y postgrado: entrevista a Elsa Estevez
No full textElsa Estevez es Doctora en Ciencias de la Computación UNSur, Profesora Titular de la Cátedra UNESCO de Sociedades del Conocimiento y Gobernanza Digital de la UNSur, Investigadora Independiente CONICET, Oficial de Programas Académicos en la Universidad de las Naciones Unidas (UNU) en Macao y Portugal, Profesor visitante de Universidades de Argentina y Europa.Tema especial: Transformación digital: el rol del postgrado.Facultad de Informátic
Panama rams
No full textPanama rams shown by Ross Sargent of Cedar City at the Southern Utah Livestock ShowPhotograph
Análisis RAMS
No full textEl objetivo principal de este proyecto es la realización de una plantilla en Microsoft Office Excel 2007, para la realización de cualquier análisis RAMS. De esta forma se evitará que cada vez que se quiera realizar un análisis RAMS se tenga que empezar de cero. Esta aplicación es especialmente útil para analistas sin experiencia, reduciendo el tiempo de búsqueda de qué información es conveniente introducir en el análisis, qué información se ha de obtener y qué pasos hay que seguir. La plantilla servirá como plantilla de partida, ya que, aunque todos los análisis deben tener unos inputs y outputs comunes, cada análisis tendrá unos datos distintos, ya que de cada sistema tendremos una cantidad de información distinta y se necesitará una información de salida distinta. El analista deberá ajustar la plantilla a sus necesidades. El segundo objetivo del proyecto consiste en un informe en el que se explique en qué consiste el análisis RAMS, para qué sirve, paso a paso cómo se ha de realizar y qué resultados se obtienen. La idea original del proyecto era realizar un análisis RAMS completo que sirviera como ejemplo para la realización de futuros proyectos, aportando un mayor entendimiento de los pasos a seguir en el análisis RAMS, pero fue imposible obtener suficientes datos reales sobre algún sistema. Y la invención de esto datos resultaba una tarea ardua y, a la vez, podía confundir a los analistas a la hora de utilizarlo como ayuda. Por lo que hemos tenido que utilizar como ejemplo ilustrativo: “Puertas automáticas de un vagón de una línea de metro con cierre de andenes” de “Creus Sole, Antonio (2005). Fiabilidad y Seguridad”.Ingeniería Industria
RAMS management of railway systems
No full textRailway RAMS is an engineering discipline that integrates reliability, availability, maintainability and safety characteristics into an inherent design property through systems engineering. This research is to establish a systematic approach of RAMS management for the railway systems engineering through the establishment of the engineering concepts, methods, techniques and tools. For this purpose, the research focuses on three subjects and a case study. Firstly, this research provides a RAMS management systems included railway systems engineering and RAMS management processes so that railway organisations can decide a strategic policy, control functions and coordinate activities related to RAMS management. Secondly, this research provides railway risk assessment methods to assess all of the potential hazards that threaten the railway’s operational objectives and control them within the possible acceptable criteria. Thirdly, this research provides the method that develops RAMS performance specifications appropriate to the RAMS requirements and operational contexts in order to develop RAMS design and its acceptance criteria for implementing the detailed design and/or contract. Finally, this research presents a case study for the risk assessment, using the data collected from the railway industry to demonstrate the proposed risk assessment method and to investigate the RAMS performance of the railway systems and their major failure causes
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