Abstract

The aim of this paper is to map out the research around the concept of interactivity, as well as to point out the dominant streams and underresearched areas. It is based upon the content analysis of methods employed in articles published in five topranking communication journals over five year period (200610). The review of methods applied in research of interactivity is based upon distinction between social interactivity, textual interactivity and technical interactivity. This classification is further developed by adding the category of levels of interactivity (low, medium and high) which allows further classification of different mediated practices. This leads to specification of nine theoretical subsets of interactivity as the main categories of the analysis of research articles. Within this matrix we have situated diverse methods that respond to conceptually different types and levels of audience/users interactivity. The analysis shows that scholarly focus lies within the low textual and the high social interactive practices, whereas the high technical and high textual interactivity are underresearched areas. Investigations into the audience/users relations with texts are mainly orientated towards content analyses and surveys. High social interaction research is reviving the application of ethnographic methods, while the possibilities of technical interactivity are embraced not as an object but as a tool for research.

Abstract

A number of methods for measuring moisture transport properties of cementitious materials were compared in a series of experiments. Two OPC mortars with two water-binder-ratios were wet cured for six months and used to produce specimens as discs with different thicknesses and diameters."br /" The cup methods were easy to use, reliable and fairly rapid but need a stable, surrounding, CO2-free climate, however. Evaluating the fundamental potential PSI eliminates the derivation that adds to the uncertainty."br /" Steady-state moisture distribution measurements are very time-consuming and the RH-profiling is a delicate matter. Moisture contents are scattering. Sorption experiments are very easy to perform but difficult to evaluate, because of the peculiar moisture-dependency of the diffusivity Dw and the difficulties to estimate the equilibrium conditions. Initial uniform conditions are difficult to obtain for low w/c-materials, except to initial self-desiccation."br /" Sorption experiments in small steps are uncertain; the initial and final conditions are difficult to define properly. Document type: Report

Abstract

Modern vehicles have electrical architectures whose complexity grows year after year due to feature growth corresponding to customer expectations. The latest of the expectations, automation of the dynamic driving task however, is poised to bring about some of the largest changes seen so far. In one fell swoop, not only does required functionality for automated driving drastically increase the system complexity, it also removes the fall-back of the human driver who is usually relied upon to handle unanticipated failures after the fact. The need to architect thus requires a greater rigour than ever before, to maintain the level of safety that has been associated with the automotive industry. The work that is part of this thesis has been conducted, in close collaboration with our industrial partner Scania CV AB, within the Vinnova FFI funded project ARCHER. This thesis aims to provide a methodology for architecting during the concept phase of development, using industrial practices and principles including those from safety standards such as ISO 26262. The main contributions of the thesis are in two areas. The first area i.e. Part A contributes, (i) an analysis of the challenges of architecting automated driving, and serves as a motivation for the approach taken in the rest of this thesis, i.e. Part B where the contributions include, (ii) a definition of a viewpoint for functional safety according to the definitions of ISO 42010, (iii) a method to systematically extract information from legacy components and (iv) a process to use legacy information and architect in the presence of uncertainty to provide a work product, the Preliminary Architectural Assumptions (PAA), as required by ISO 26262. The contributions of Part B together comprise a methodology to architect the PAA.   A significant challenge in working with the industry is finding the right fit between idealized principles and practical utility. The methodology in Part B has been judged fit for purpose by different parts of the organization at Scania and multiple case studies have been conducted to assess its usefulness in collaboration with senior architects. The methodology was found to be conducive in both, generating the PAA of a quality that was deemed suitable to the organization and, to find inadequacies in the architecture that had not been found earlier using the previous non-systematic methods. The benefits have led to a commissioning of a prototype tool to support the methodology that has begun to be used in projects related to automation at Scania. The methodology will be refined as the projects progress towards completion using the experiences gained. A further impact of the work is seen in two patent filings that have originated from work on the case studies in Part B. Emanating from needs discovered during the application of the methods, these filed patents (with no prior publications) outline the future directions of research into reference architectures augmented with safety policies, that are safe in the presence of detectable faults and failures. To aid verification of these ideas, work has begun on identifying critical scenarios and their elements in automated driving, and a flexible simulation platform is being designed and developed at KTH to test the chosen critical scenarios. Efterfrågan på nya funktioner leder till en ständigt ökande komplexitet i moderna fordon, speciellt i de inbyggda datorsystemen. Införande av autonoma fordon utgör inte bara det mest aktuella exemplet på detta, utan medför också en av de största förändringar som fordonsbranschen sett. Föraren, som ”back-up” för att hantera oväntade situationer och fel, finns inte längre där vid höggradig automation, och motsvarande funktioner måste realiseras i de inbyggda system vilket ger en drastisk komplexitetsökning. Detta ställer systemarkitekter för stora utmaningar för att se till att nuvarande nivå av funktionssäkerhet bibehålls. Detta forskningsarbete har utförts i nära samarbete med Scania CV AB i det Vinnova (FFI)-finansierade projektet ARCHER. Denna licentiatavhandling har som mål att ta fram en metodik för konceptutveckling av arkitekturer, förankrat i industriell praxis och principer, omfattande bl.a. de som beskrivs i funktionssäkerhetsstandards som ISO 26262. Avhandlingen presenterar resultat inom två områden. Det första området, del A, redovisar, (i) en analys av utmaningar inom arkitekturutveckling för autonoma fordon, vilket också ger en motivering för resterande del av avhandlingen. Det andra området, del B, redovisar, (ii) en definition av en ”perspektivmodell” (en s.k. ”viewpoint” enligt ISO 42010) för funktionssäkerhet, (iii) en metod för att systematiskt utvinna information från existerande komponenter, och (iv) en process som tar fram en arbetsprodukt för ISO 26262 – Preliminära Arkitektur-Antaganden (PAA). Denna process använder sig av information från existerande komponenter – resultat (iii) och förenklar hantering av avsaknad/osäker information under arkitekturarbetet. Resultaten från del B utgör tillsammans en metodik för att ta fram en PAA. En utmaning i forskning är att finna en balans mellan idealisering och praktisk tillämpbarhet. Metodiken i del B har utvärderats i flertalet industriella fallstudier på Scania i samverkan med seniora arkitekter från industrin, och har av dessa bedömts som relevant och praktiskt tillämpningsbar. Erfarenheterna visar att metodiken stödjer framtagandet av PAA’s av   lämplig kvalitet och ger ett systematiskt sätt att hantera osäkerhet under arkitekturutvecklingen. Specifikt så gjorde metoden det möjligt att identifiera komponent-felmoder där arkitekturen inte var tillräcklig för åstadkomma önskad riskreducering, begränsningar som inte hade upptäckts med tidigare metoder. Ett prototypverktyg för att stödja metodiken har utvecklats och börjat användas på Scania i projekt relaterade till autonoma fordon. Metodiken kommer sannolikt att kunna förfinas ytterligare när dessa projekt går mot sitt slut och mer erfarenheter finns tillgängliga. Arbetet i del B har vidare lett till två patentansökningar avseende koncept som framkommit genom fallstudierna. Dessa koncept relaterar till referensarkitekturer som utökats med policies för personsäkerhet (Eng. ”safety”) för att hantera detekterbara felfall, och pekar ut en riktning för framtida forskning. För att stödja verifiering av dessa koncept har arbete inletts för att identifiera kritiska scenarios för autonom körning. En flexibel simuleringsplattform håller också på att designas för att kunna testa kritiska scenarios. Vinnova-FFI funded Project ARCHER

Abstract

Cultural services, and specifically libraries, must justify to society -and to governments- their social and economic performance. They must prove they are not an expense but rather an investment that yields net benefits with a return on investment (ROI) that in some cases can reach 4.5%. Five methods to calculate the value of library services, and some Spanish initiatives with this purpose, are described. The conclusion is that information services have plenty of annual activity data, but the lack of knowledge about the necessary methodology limits the capacity to exploit these data.

Abstract

The possibilities of image based modeling (IBM) as a 3D scanning technique for modeling low cost Roman inscriptions are analyzed. The study has been carried out at the National Museum of Archaeology (Madrid), where various Roman inscriptions (on stone, bronze and clay) were examined. The results obtained have proved to be excellent as related to the study and widespreading of this type of historical documentation. The 3D Roman inscriptions can be incorporated into digital epigraphy projects in progress, allowing access via personal computers and mobile devices, without extra costs to researchers.

Abstract

With the arrival of a number of wide-field snapshot image-plane radio transient surveys, there will be a huge influx of images in the coming years making it impossible to manually analyse the datasets. Automated pipelines to process the information stored in the images are being developed, such as the LOFAR Transients Pipeline, outputting light curves and various transient parameters. These pipelines have a number of tuneable parameters that require training to meet the survey requirements. This paper utilises both observed and simulated datasets to demonstrate different machine learning strategies that can be used to train these parameters. The datasets used are from LOFAR observations and we process the data using the LOFAR Transients Pipeline; however the strategies developed are applicable to any light curve datasets at different frequencies and can be adapted to different automated pipelines. These machine learning strategies are publicly available as Python tools that can be downloaded and adapted to different datasets (https://github.com/AntoniaR/TraP_ML_tools). Comment: Astronomy & Computing Accepted, 25 pages, 20 figure

Abstract

A new analysis system for website quality evaluation is presented. It is characterized by its potential to interrelate and evaluate both technical and strategic aspects of a website. It has its origin in the premise that, although the technical aspects, which determine the website operability and functionality, have a great impact on its quality, they do not alone guarantee success. This approach differs from those commonly adopted by analysis systems for website quality evaluation, since most of them have been developed adopting a predominantly operational or functional approach.

Abstract

Introduction: for the development of a teaching-educational process with quality at the postgraduate level, it is necessary to improve the methodological work.Aim: to design a pedagogical model for the work of the specialization in General Integral Medicine at the University of Medical Sciences of Pinar del Río. Methods: descriptive and transversal research during the course 2020-2021; the universe was constituted by professors and tutors of the specialty of General Integral Medicine of the University Polyclinic "Dr. Modesto Gómez Rubio" of San Juan y Martínez, Pinar del Río. Theoretical and empirical methods were used.Results: design of a pedagogical model for the methodological work of the specialization in General Integral Medicine. Conclusions: the pedagogical model designed contributes to the improvement of the levels, activities and organizational forms and of the didactic, pedagogical and methodological preparation of teachers and tutors.