Male antene: postupci smanjivanja izmjera i primjene

The paper presents research results in the field of small antennas obtained at the Department of Wireless Communications, Faculty of Electrical Engineering and Computing, University of Zagreb. A study comparing the application of several miniaturization techniques on a shorted patch antenna is presented. Single and dual band shorted patch antennas with notches and/or slot are introduced. A PIFA designed for application in mobile GSM terminals is described. The application of stacked shorted patches as array elements for a mobile communication base station as well as for electromagnetic field sensor is presented. The design of single and dual band folded monopoles is described. Prototypes of the presented antennas have been manufactured and their characteristics were verified by measurements.U radu su prikazani rezultati istraživanja u području malih antena ostvareni na Zavodu za Radiokomunikacije, Sveučilišta u Zagrebu Fakulteta elektrotehnike i računarstva. Prikazana je primjena više postupaka za smanjivanje izmjera skraćene mikrotrakaste antene. Opisane su izvedbe skraćenih mikrotrakastih antena s urezima i prorezom za rad u jednom i u dva frekvencijska područja. Prikazana je izvedba planarne invertirane F-antene (PIFA) za primjenu u ručnim terminalima sustava pokretnih komunikacija GSM. Višeslojne skraćene mikrotrakaste antene uporabljene su za izvedbu antenskog niza za baznu postaju sustava pokretnih komunikacija te kao elementi osjetila za mjerenje jakosti elektromagnetskog polja. Prikazana je izvedba savijenih monopolnih antena za rad u jednom te u dva frekvencijska pojasa. Izrađeni su prototipovi opisanih antena i mjerenjima su ispitane njihove osobine

‘Around the hut’: an archaeological ethnography around the experimental construction of a shepherd’s hut in Konitsa, north-west Greece

SUMMARY: This article reflects on the experimental building of a Vlach hut that took place in the 14th Summer School of the Balkan Border Crossings Network. The approach took the form of an archaeological ethnography and addressed a variety of subjects from ethnographic and experimental fieldworkto videography and critical heritage, all emerging from the same point: thebuilding of a shepherd’s roundhut in the plain of Konitsa. From interdisciplinary methodological encounters to reflections on pastoral identities, legislation and its effects on this built pastoral heritage, as well as fieldwork reflections, while experiencing and experimenting, this article reveals potential avenues for interdisciplinary engagement in contexts such as Summer Schools. © 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group

Vprašalnik za merjenje kakovosti življenja, povezanega z zdravjem

Background: Translations of instruments for measuring quality of life developed in certain, mostly more developed, parts of the world usually do not cover regionally specific aspects of health-related quality of life, even after transcultural validation. The aim of this study was to develop and validate a reliable questionnaire in Serbian, Croatian, Bosnian, and Montenegrin languages suitable for measuring health-related quality of life in adults. Methods: The study was of a cross-sectional type, assessing the reliability and validity of a newly developed questionnaire for measuring health-related quality of life (HRQoL) in adults residing in western Balkan states (WB-HRQoL). It was conducted on a sample of 489 adults from Serbia, Croatia, Bosnia & Herzegovina, and Montenegro, with a mean age of 52.2±14.4 years and a male/female ratio of 195/294 (39.9%/60.1%). Result: The definitive version of the WB-HRQoL scale with 19 items showed very good reliability, with Cronbach's alpha 0.905. The scale was temporally stable, and satisfactory results were obtained for divergent and convergent validity tests. Exploratory factorial analysis brought to the surface four domains of health-related quality of life, namely the physical, psychical, social, and environmental. Conclusion: The WB-HRQoL scale is a reliable and valid generic instrument for measuring HRQoL that takes into account the cultural specifics of the western Balkan region

Carrying out a multi-model integrated assessment of European energy transition pathways : Challenges and benefits

| openaire: EC/H2020/691739/EU//REEEM Funding Information: This research has received funding through the REEEM project from the European Union's Horizon 2020 research and innovation programme under grant agreement 691739. This publication reflects only the views of its authors, and the European Commission cannot be held responsible for its content. The authors would also like to thank all the contributors to the REEEM project and those who prepared the proposal. Francesco Gardumi would like to thank the division of Energy Systems Analysis for all the support and feedback provided through the duration of the REEEM project. Funding Information: With the publication of the European Green Deal, the European Union ratcheted its ambition on climate change and committed to carbon-neutrality by 2050 [ 1 ]. Though supported by many Member States, the transformational change mandated by the Green Deal also raised concerns from some. For instance, Members of the European Parliament (MEPs) from Poland reacted tothe announcement by stating the need for the European Commission to work with member states [ 2 ]. MEPs from Italy highlighted the need to look at the social and economic impact of achieving climate neutrality and MEPs from France echoed the Italian proposal for a more humane social and ecological transition. Such concerns stem from specific social, economic and environmental pressures, and are often not captured explicitly by the analysis supporting emission mitigation plans. Publisher Copyright: © 2022 The Author(s)With the publication of the European Green Deal, the European Union has committed to reaching carbon neutrality by 2050. The envisaged reductions of direct greenhouse gases emissions are seen as technically feasible, but if a wrong path is pursued, significant unintended impacts across borders, sectors, societies and ecosystems may follow. Without the insights gained from an impact assessment framework reaching beyond the techno-economic perspective, the pursuit of direct emission reductions may lead to counterproductive outcomes in the long run. We discuss the opportunities and challenges related to the creation and use of an integrated assessment framework built to inform the European Commission on the path to decarbonisation. The framework is peculiar in that it goes beyond existing ones in its scope, depth and cross-scale coverage, by use of numerous specialised models and case studies. We find challenges of consistency that can be overcome by linking modelling tools iteratively in some cases, harmonisingmodelling assumptions in others, comparing model outputs in others. We find the highest added value of the framework in additional insights it provides on the technical feasibility of decarbonisation pathways, on vulnerability aspects and on unintended environmental and health impacts on national and sub-national scale.Peer reviewe