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Maleki, S. (author)Dynamic spectrum access employing cognitive radios has been proposed, in order to opportunistically use underutilized spectrum portions of a heavily licensed electromagnetic spectrum. Cognitive radios opportunistically share the spectrum, while avoiding any harmful interference to the primary licensed users. One major category of cognitive...doctoral thesis 2013
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Jansen, S.C. (author)This doctoral research studied the added value of exergy for the assessment and development of energy systems for the built environment, aiming at a reduced need for high-quality energy input. Currently the analysis and development of energy systems for the built environment is based on the energy concept. Energy however gives an incomplete...doctoral thesis 2013
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Aust, S.H. (author)This dissertation addresses the challenges of wireless local area networks (WLANs) that operate in the unlicensed sub-1GHz industrial, scientific, and medical (ISM) band. Frequencies in the 900MHz spectrum enable a wider coverage due to the longer propagation characteristics of the radio waves. To utilize globally available sub-1GHz (S1G) ISM...doctoral thesis 2014
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Straub, A. (author), Mlecnik, E. (author)It is poorly understood what the characteristics are of households who want to engage in nZEB single-family home renovations. This paper addresses the research question: What are customer segments, and what are their customer values and motives to choose for a nZEB renovation of privately-owned single-family dwellings in the Netherlands?...conference paper 2014
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Hiller, C. (author), Hasselaar, E. (author), Gervind, P. (author)The general goal of tenant involvement is to ensure that retrofitting projects are successful not only from a technical point of view but also from a social perspective. When possible, strategies should be included to reward users for energy efficient behaviour. Energy monitoring and feedback are tools in support of energy savings. But how do...conference paper 2014
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Taleghani, M. (author)The urban heat island (UHI) phenomenon and the dependency of buildings on fossil fuels were the two main issues that formed this dissertation. UHI results in higher air temperatures in dense urban areas compared with their suburbs and rural surroundings. This phenomenon affects human health through thermal discomfort and air pollution....doctoral thesis 2014
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Visscher, H.J. (author)Energy performance contracting is based on the idea that the investments for the improvements of the energy performance of a building through better insulation and more efficient installations will be covered by the savings of the use of energy in the use phase. The external contractor takes care of all the investments costs and guarantees the...conference paper 2014
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Goverde, R.M.P. (author), Besinovic, N. (author), Binder, A. (author), Cacchiani, V. (author), Quaglietta, E. (author), Roberti, R. (author), Toth, P. (author)The performance of railway operations depends highly on the quality of the railway timetable. In particular for dense railway networks it can be a challenge to obtain a stable robust conflict-free and energy-efficient timetable with acceptable infrastructure occupation and short travel times. This paper presents a performance-based railway...conference paper 2015
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De Lange, M.F. (author)A novel class of materials, i.e. Metal-Organic Frameworks (MOFs), has successfully been developed that is extremely suited for application in heat pumps and chillers. They have a superior performance over commercial sorbents and may potentially contribute to considerable energy savings worldwide. Globally about 33 % of the energy consumption is...doctoral thesis 2015
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Yang, S. (author)In most types of networks (e.g., optical or transportation networks), finding one or more best paths from a source to a destination, is one of the biggest concerns of network users and providers. This process is known as routing. The routing problems differ accordingly depending on different application scenarios with their respective routing...doctoral thesis 2015
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Visscher, H.J. (author), Filippidou, F. (author), Nieboer, N.E.T. (author)The European Union formulated high ambitions of energy reductions to be realised in the built environment. The existing housing stock covers a major share of energy use and is seen as high potential to contribute to the savings. This should be realised in the first place by reducing the energy demand for heating by renovation of the existing...conference paper 2015
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Scheepmaker, G.M. (author), Goverde, R.M.P. (author)An important topic to reduce the energy consumption in railways is the use of energy-efficient train control (EETC). Modern trains allow regen-erative braking where the released kinetic energy can be reused. This regener-ative braking has an effect on the optimal driving regimes compared to trains which can only use mechanical braking. This...conference paper 2015
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Jiang, J. (author), Chang, Z.Y. (author), Pertijs, M.A.P. (author)This paper presents an energy-efficient readout circuit for micro-machined resonant sensors. It operates by briefly exciting the sensor at a frequency close to its resonance frequency, after which resonance frequency and quality factor are determined from a single ring-down transient. The circuit employs an inverter-based trans-impedance...journal article 2015
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Xin, J. (author)For enhancing the performance of automated container terminals, this PhD thesis focuses on improving energy efficiency and implementing more autonomous equipment (e.g., free-ranging AGVs) at the operational level. On the one hand, due to the increased energy price and environmental stress, energy efficiency needs to be improved. On the other...doctoral thesis 2015
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Visscher, H.J. (author)The housing stock has a major energy saving potential and is mostly considered to be the sector in which energy efficiency most cost effectively could be achieved. 30% of all energy use is consumed in the housing stock. The European union has formulated targets for a reduction of CO2 emissions to be achieved by a combination of energy efficiency...conference paper 2015
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Holck Sandberg, N. (author), Sartori, I. (author), Heidrich, O. (author), Dawson, R. (author), Dascalaki, E. (author), Dimitriou, S. (author), Vimm-r, T. (author), Filippidou, F. (author), Stegnar, G. (author), Sijanec Zavrl, M. (author), Brattebø, H. (author)A dynamic building stock model is applied to simulate the development of dwelling stocks in 11 European countries, over half of all European dwellings, between 1900 and 2050. The model uses time series of population and number of persons per dwelling, as well as demolition and renovation probability functions that have been derived for each...journal article 2016
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Read, S.A. (author), Lindhult, Erik (author), Mashayekhi, A. (author)Our present economy is high-energy and demand-intensive, demand met through the use of high energy yield fossil fuels. Energy efficiency and renewable energy sources are proposed as the solution and named the ‘twin pillars’ of sustainable energy policy. Increasing energy efficiencies are expected to reduce energy demand and fossil fuel use and...journal article 2016
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Campos Martins, G. (author), Serdijn, W.A. (author)Some systems like RF energy harvesters have power transfer efficiency as one of the most important specifications. Therefore, the efficiency of the matching network, which affects the entire system’s efficiency, plays an important role. When the impedance transformation factor between the antenna and its load is high, the matching network...journal article 2016
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Filippidou, F. (author), Nieboer, N.E.T. (author), Visscher, H.J. (author)The existing housing stock plays a major role in meeting the energy efficiency targets set in EU member states such as the Netherlands. The non-profit housing sector in this country dominates the housing market as it represents 31% of the total housing stock. The focus of this paper is to examine the energy efficiency measures that are currently...journal article 2016
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Romein, A. (author)Now that it becomes obvious that disregarding the seriousness of climate change and the exhaustibility of fossil fuels would have severe and unpredictable impacts, improvement of the efficiency of urban energy consumption is of utmost importance. Hence, a rather diverse spectrum of policies to encourage this improvement has been put into...journal article 2016