Blekinge Institute of Technology

Electronic Research Archive - Blekinge Tekniska Högskola
Not a member yet
    1855 research outputs found

    Biståndspolitikens motsägelser om kunskap och tekniköverföring - från konkret praktik till abstrakt policy

    No full text
    I denna avhandling analyseras hur kunskaps- och teknikfrågor diskuterats i den svenska riksdagens biståndspolitiska debatt. I denna debatt låg frågor om kunskap och teknik högt på dagordningen, när biståndets mål under 1970- och 80-talen var att stödja fattiga länders politiska och ekonomiska oberoende, så att de kunde förbättra befolkningens levnadsvillkor socialt, ekonomiskt och politiskt. Skuldkrisen och det kalla krigets slut ändrade de biståndspolitiska målen från stöd till fattiga länders politiska och ekonomiska oberoende till fattiga människors rättigheter. I biståndspolitiken från 1990-talet till våra dagar blev politiska villkor och statliga ekonomiska reformer viktigare än de fattiga ländernas möjlighet att bygga upp egen kunskap och teknik för att lösa sina problem. Det policybistånd, som växte fram, ändrade också biståndets arbetssätt. I det svenska biståndets början var kunskapsöverföring genom yrkesutbildning en självklarhet. Kort därefter svarade Sverige på FN:s vädjan att bistå utvecklingsländerna att bygga upp sina egna forskningsinstitutioner. De borgerliga politikerna i riksdagen drev på för att svensk industri skulle få möjligheter att delta i biståndet med sin kunskap och erfarenhet. Med dessa biståndspolitiska schackdrag från 1970- och 1980-tal gav Sverige utrymme åt företags- och forskarvärlden att delta aktivt i biståndet med element, som rätt hanterade kanske kunnat hjälpa även de fattigaste länderna att grundlägga sina egna innovationssystem. Policybiståndet flyttade biståndet till en arena, där istället politiker och byråkrater var experterna. Det blev då deras kunskaper, som skulle överföras för att bygga liberal demokrati, marknadsekonomi och god statsförvaltning. I samband med klimatförhandlingarna har den svenska, biståndspolitiska debatten på nytt uppmärksammat tekniköverföringen. Svårigheten är nu att bidra till att alla världens människor får tillgång till energi, samtidigt som koldioxidutsläppen måste minska. Tekniköverföring från de rika länderna till de fattiga ska lösa problemet, säger debattörerna, men de är oense, om det är biståndet, som ska betala. Det är inte bara bristen på finansiering, som hindrar denna lösning. Tekniköverföringens möjligheter har problematiserats i teorier om nationella innovationssystem, som pekar på en bredd av förutsättningar, som måste finnas på plats för framgångsrikt tekniskt lärande. Riksdagsledamöterna har inte tagit med denna problematisering till debatten. De har inte heller dragit erfarenheter från den biståndspolitiska debattens drygt 50-åriga historia. I den finns lärdomar att dra av politikernas motsägelsefulla tal om att stödja utvecklingsländers strävan att bygga upp förmågan att lära sig om, anpassa och utveckla sin egen teknik

    Quantitative Assessment of Intelligent Transport Systems for Road Freight Transport

    No full text
    In this thesis, methods for using computer-based models as support tools for assessing Transport Telematic Services (TTSs) are studied. Such assessments provide one way to understand how TTSs can address problems caused by transportation, such as accidents, emissions, and energy consumption. TTSs are services based on telematic systems which are Intelligent Transport Systems (ITS) involving the integrated use of information and communication technologies in transport. The focus is on TTSs that are relevant for road freight transport, even though the suggested methods can easily be adapted for TTSs in other areas. We characterize TTSs, e.g., in terms of their functionalities, and apply computer-based modeling for pre-deployment assessment of various TTSs (from an ex-ante perspective). By analyzing information provided by the suggested computer-based models, it is possible to make an informed decision whether to (or not to) deploy a given TTS. A review of previous studies reveals information about relevant TTSs for freight transport in areas such as driver support, administration, safety, traffic management, parking, and goods handling. A hierarchical clustering algorithm and a k-minimum spanning tree algorithm were employed to analyze synergies of TTSs. Synergies can enable identification of sets of TTSs that can lead to cost savings if deployed on a common platform (cf. Multi-Service Architectures). An analytical model inspired by the net present value concept is used to estimate quantified societal benefits of TTSs. An optimization model is formulated and solved using a branch and bound method to determine an optimal combination of TTSs taking into consideration societal benefits, costs, dependencies, and synergies. The optimization model also addresses possible system architectures for achieving multiple TTSs. Dominance rough set approach is used to assess and compare benefit areas for TTSs specific to truck parking. The benefit areas are suggested with the help of conceptual modeling, which describes functional models of a system in terms of states, transitions among states, and actions performed in states. The main scientific contributions of the thesis are in suggesting new quantitative models, extending and applying existing models in the assessments of TTSs, and obtaining results that can help decision-makers select TTSs for medium-to long-term investments. Researchers can employ and build on the proposed methods when addressing different scenarios (geographic or organizational) involving similar TTSs. By studying a range of TTSs and possible Multi-Service Architecture concepts for such TTSs, the thesis contributes to achieving convergence of TTSs in a Multi-Service Architecture environment that will improve cost efficiency, minimize redundancies, and encourage the establishment of standards in the deployment of TTSs in road freight transport. TTSs implemented in such an environment can contribute to optimizing available capacity, accuracy, speed, and efficiency of road freight transport systems

    Health communication in primary health care -A case study of ICT development for health promotion

    No full text
    Background Developing Information and Communication Technology (ICT) supported health communication in PHC could contribute to increased health literacy and empowerment, which are foundations for enabling people to increase control over their health, as a way to reduce increasing lifestyle related ill health. However, to increase the likelihood of success of implementing ICT supported health communication, it is essential to conduct a detailed analysis of the setting and context prior to the intervention. The aim of this study was to gain a better understanding of health communication for health promotion in PHC with emphasis on the implications for a planned ICT supported interactive health channel. Methods A qualitative case study, with a multi-methods approach was applied. Field notes, document study and focus groups were used for data collection. Data was then analyzed using qualitative content analysis. Results Health communication is an integral part of health promotion practice in PHC in this case study. However, there was a lack of consensus among health professionals on what a health promotion approach was, causing discrepancy in approaches and practices of health communication. Two themes emerged from the data analysis: Communicating health and environment for health communication. The themes represented individual and organizational factors that affected health communication practice in PHC and thus need to be taken into consideration in the development of the planned health channel. Conclusions Health communication practiced in PHC is individual based, preventive and reactive in nature, as opposed to population based, promotive and proactive in line with a health promotion approach. The most significant challenge in developing an ICT supported health communication channel for health promotion identified in this study, is profiling a health promotion approach in PHC. Addressing health promotion values and principles in the design of ICT supported health communication channel could facilitate health communication for promoting health, i.e. ‘health promoting communication’

    Perspectives on Productivity and Delays in Large-Scale Agile Projects

    No full text
    Many large and distributed companies run agile projects in development environments that are inconsistent with the original agile ideas. Problems that result from these inconsistencies can affect the productivity of development projects and the timeliness of releases. To be effective in such contexts, the agile ideas need to be adapted. We take an inductive approach for reaching this aim by basing the design of the development process on observations of how context, practices, challenges, and impacts interact. This paper reports the results of an interview study of five agile development projects in an environment that was unfavorable for agile principles. Grounded theory was used to identify the challenges of these projects and how these challenges affected productivity and delays according to the involved project roles. Productivity and delay-influencing factors were discovered that related to requirements creation and use, collaboration, knowledge management, and the application domain. The practitioners’ explanations about the factors' impacts are, on one hand, a rich empirical source for avoiding and mitigating productivity and delay problems and, on the other hand, a good starting point for further research on flexible large-scale development

    Identification and evaluation of security activities in agile projects

    No full text
    We compare four high-profile waterfall security-engineering processes (CLASP, Microsoft SDL, Cigital Touchpoints and Common Criteria) with the available preconditions within agile processes. Then, using a survey study, agile security activities are identified and evaluated by practitioners from large companies, e.g. software and telecommunication companies. Those activities are compared and a specific security engineering process is suggested for an agile process setting that can provide high benefit with low integration cost

    A synergy based method for designing ITS services

    No full text
    In this paper, we propose a method for supporting the process of designing Intelligent Transportation System (ITS) services, which utilizes on primarily functional synergies with already existing services. Using synergies between services will enable sharing of resources, such as, information entities, functions and technical resources, which in turn may lead to reduced costs for implementing services. The method is built around an existing service description framework, which is used to describe both existing services and the service to be designed. In order to illustrate the usage of the suggested method, we have applied it for designing a new ITS service, i.e., the Liability Intelligent Transport System (LITS) service. The purpose of the LITS service is to support the process of identifying when, where and why freight has been damaged, and which actor was responsible when the freight was damaged. The LITS service may lead to better quality control of consignments and may also facilitate the identification of which actor was responsible for the freight damage, which is of particular interest in multi-modal transport. By applying our service design method we were able to identify that three out of four functions of the LITS service already exist in other existing ITS services. Therefore, the LITS service can be designed based on synergies with these services

    Impact of Primary Networks on the Performance of Secondary Networks

    No full text
    In this paper, we investigate the performance of a single-input and multiple-output cognitive radio network over Rayleigh fading. In particular, we assume that secondary transmitter (SU-Tx) and primary transmitter (PU-Tx) are equipped with a single antenna while secondary receiver (SU-Rx) and primary receiver (PU-Rx) have multiple antennas. Additionally, the SU-Tx transmit power is subject to outage constraint of the primary network and peak transmit power of the secondary network. Given these settings, an adaptive transmit power allocation policy for the SU-Tx, a closed-form expression for outage probability, and an approximation for ergodic capacity are obtained. These formulas will be used to examine the impact of the PU-Tx transmit power, the number of antennas at receivers, and channel mean powers on the performance of the secondary network. More importantly, our results reveal that the SU-Tx using the power allocation policy can obtain optimal performance

    Performance analysis for multiple-input multiple output- maximum ratio transmission systems with channel estimation error, feedback delay and co-channel interference

    No full text
    In this study, the authors analyse the impact of channel estimation error (CEE), feedback delay (FD), and co-channel interference (CCI) on the performance of multiple-input multiple-output (MIMO) systems deploying maximum ratio transmission (MRT). In particular, the authors derive closed-form expressions for the ergodic capacity and the symbol error rate (SER) as well as the outage probability (OP). In addition, to reveal the effect of CEE, FD and CCI on the MIMO-MRT system, the authors adopt more simplified and tractable formulas in terms of asymptotic expressions for the ergodic capacity, SER and OP. The analysis shows that the system performance is degraded considerably under imperfect transmission conditions such as CEE, FD and CCI. However, the authors can compensate part of this degradation by deploying MRT transmission with a large number of antennas at the transmitter and receiver. Finally, the selected examples exhibit consistency between analytical results and Monte Carlo simulations

    Introductory Approach to Business Model Design for Strategic Sustainable Development

    No full text
    The interrelated challenges of systematic degradation of ecosystems, social inequalities, financial instability and resource constraints are redefining the overall conditions for business in the twenty-first century. Addressing these challenges both demands and brings great opportunity for innovation. An important but sometimes neglected aspect of innovation is the design or redesign of business models. This has been identified as a greater source of lasting competitive advantage than new products and services per se. The majority of managers among those who say that their company´s sustainability activities have added to profits also say that these activities have led to business model changes. However, integrating business model design and sustainable innovation practices is a relatively underexplored area of research. The aim of this work is to develop an approach to business model design that supports the realization of sustainability-driven strategies. In this thesis, it is argued that a major barrier to sustainable innovation is the usual unawareness of an operational definition of sustainability and of guidelines for how an organization can support sustainable development while strengthening its own competitiveness. Therefore, a Framework for Strategic Sustainable Development (FSSD), which includes such an operational definition of sustainability and such strategic guidelines, is used as an overarching methodology for this work. Specific research methods include literature reviews, data collection, data and document analysis, explorative workshops and action research, mainly with partners in the district heating sector. To be able to design a business model that supports a sustainability-driven strategy, it is necessary to have, or to be able to develop, such a strategy. The literature review revealed that there is currently no business model design tool that in itself includes support for developing sustainability-driven strategies. However, as regards business model design as such, a tool known as the Business Model Canvas (BMC) is frequently referenced and by many seen as a kind of de-facto standard support tool for business model design. A combination of the FSSD (bringing the sustainability perspective) and the BMC (bringing the generic building blocks of business models) is therefore explored. Depending on the context it is necessary to also combine this with other methods and tools; in this work specifically with methods and tools for energy systems modeling and simulation. Both as a way to develop a combined approach and as a way to start validating it, a prototype of a handbook for sustainable innovation in the district heating sector was developed and tested iteratively. The use of early versions of this handbook preliminary indicates that the combined approach helps organizations to, e.g., self-assess their maturity in terms of strategic sustainability work, clarify strengths and weaknesses of current business models from a strategic sustainability perspective and generate of new solutions, including mutually supportive actions and business models within their wider value network

    Performance analysis of an RFID-based 3D indoor positioning system combining scene analysis and neural network methods

    No full text
    The main purpose of this research is to improve localization accuracy of an active Radio Frequency Identification, RFID tag, in 3D indoor space. The paper presents a new RFID based 3D Indoor Positioning System which shows performance improvement. The proposed positioning system combines two methods: the Scene Analysis technique and Artificial Neural Network. The results of both simulation using Log-Distance Path Loss Model and physical experiments validate that the proposed positioning system improves the localization accuracy of an RFID tag compared with well-known Scene Analysis technique solution

    0

    full texts

    1,855

    metadata records
    Updated in last 30 days.
    Electronic Research Archive - Blekinge Tekniska Högskola
    Access Repository Dashboard
    Do you manage Open Research Online? Become a CORE Member to access insider analytics, issue reports and manage access to outputs from your repository in the CORE Repository Dashboard! 👇