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Mahmoud, A.N.N. (author), Ciubotaru, Florin (author), Vanderveken, Frederic (author), Adelmann, Christoph (author), Cotofana, S.D. (author), Hamdioui, S. (author)
Spin Waves (SWs), by their nature, are excited by means of voltage driven or current driven cells under two modes: Continuous Mode Operation (CMO), and Pulse Mode Operation (PMO). Moreover, the low throughput of the SW technology (caused by its high latency) can be enhanced by wavepipelining which is supported inherently by the SW under the...
journal article 2023
document
Ekici, B. (author)
Population growth and urbanisation trends bring many consequences related to the increase in global energy consumption, CO2 emissions and a decrease in arable land per person. High‑rises have been one of the inevitable buildings of metropoles to provide extra floor space since the early examples in the 19th century. Therefore, optimisation of...
doctoral thesis 2022
document
Mahmoud, A.N.N. (author)
CMOS downscaling has provided the means to efficiently process the huge raw data resulted from the information technology revolution. However, this becomes more difficult because of leakage, reliability, and cost walls. To keep the pace with the exploding market needs at affordable cost, novel alternative technologies are under investigation;...
doctoral thesis 2022
document
ter Meulen, Bram (author), Geerts, Rene (author), Infante Ferreira, C.A. (author)
This study assesses the role of (seasonal) thermal energy storage in the next generation renewables based central heating systems for the built environment in the Netherlands. Specifically, the neighbourhood "Karwijhof" in the city Nagele which is transitioning to a collective renewable district heating network incorporating 24 users. The study...
conference paper 2022
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Wolbert, Gijs (author), Geerts, Rene (author), Infante Ferreira, C.A. (author)
This study optimizes the district heating network side of a high temperature community heating system powered by decentralized solar collectors and seasonal thermal energy storage (STES). Six network configurations are considered which have the potential to improve system performance compared to a base scenario. The base scenario consists of a 2...
conference paper 2022
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Hartwell, Rebecca (author), Coult, Graham (author), Overend, M. (author)
Glass is one of the UK’s eight energy-intensive industries. As such, it is under scrutiny to decouple growth in production from greenhouse gas (GHG) emissions. Recycled glass, also known as cullet, requires less energy to melt than primary raw materials in new glass production. The use of cullet thus reduces the energy intensity per unit of...
journal article 2022
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Morrison, A.R.T. (author), Ramdin, M. (author), van den Broeke, L.J.P. (author), de Jong, W. (author), Vlugt, T.J.H. (author), Kortlever, R. (author)
The electrochemical CO2 reduction reaction (CO2RR) is important for a sustainable future. Key insights into the reaction pathways have been obtained by density functional theory (DFT) analysis, but so far, DFT has been unable to give an overall understanding of selectivity trends without important caveats. We show that an unconsidered...
journal article 2022
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Clarke, Nicholas (author)
How Heritage Learns explores the dynamics that come into play when public housing becomes valourised as heritage in the Netherlands and how that, in turn modulates the evolution of this protected housing. It builds on the foundation set by the thesis of Steward Brand, that buildings learn through the adaptation of their fabric to external forces...
doctoral thesis 2021
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Patidar, Y. (author), Bokel, R.M.J. (author)
Dutch housing built before the 1990s consumes the highest percentage of<br/>primary energy for heating and generally exhibits poor comfort. With the government targeting to convert 300,000 existing homes to become more energy-efficient every year, a renovation wave has started. How do we achieve this? This paper proposes a natural air...
journal article 2021
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Mahmoud, A.N.N. (author), Vanderveken, Frederic (author), Adelmann, Christoph (author), Ciubotaru, Florin (author), Hamdioui, S. (author), Cotofana, S.D. (author)
By their very nature, voltage/current excited Spin Waves (SWs) propagate through waveguides without consuming noticeable power. If SW excitation is performed by the continuous application of voltages/currents to the input, which is usually the case, the overall energy consumption is determined by the transducer power and the circuit critical...
conference paper 2021
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Mahmoud, A.N.N. (author), Vanderveken, Frederic (author), Ciubotaru, Florin (author), Adelmann, Christoph (author), Cotofana, S.D. (author), Hamdioui, S. (author)
Spin Waves (SWs) propagate through magnetic waveguides and interfere with each other without consuming noticeable energy, which opens the road to new ultra-low energy circuit designs. In this paper we build upon SW features and propose a novel energy efficient Full Adder (FA) design consisting of 1 Majority and 2 XOR gates, which outputs Sum...
conference paper 2021
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Yazdani, N. (author), Kouvelas, N. (author), Venkatesha Prasad, Ranga Rao (author), Lucani, Daniel E. (author)
High frame-corruption is widely observed in Long Range Wide Area Networks (LoRaWAN) due to the coexistence with other networks in ISM bands and an Aloha-like MAC layer. LoRa's Forward Error Correction (FEC) mechanism is often insufficient to retrieve corrupted data. In fact, real-life measurements show that at least one-fourth of received...
conference paper 2021
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Jenkins, A.J. (author), Keeffe, Greg (author), Martin, C.L. (author), van den Dobbelsteen, A.A.J.F. (author), Broersma, S. (author), Pulselli, Riccardo (author)
The natural ecotone between people, community and carbon reduction is the zero-carbon community. Over recent decades, the design of zero-carbon communities has focussed too greatly on carbon emissions and not enough on building communities. Anthropogenic climate change is a human problem, yet people are seldom placed at the centre of design...
conference paper 2020
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Holtz, Georg (author), Schnülle, Christian (author), Yadack, Malcolm (author), Friege, J.M. (author), Jensen, T. (author), Thier, Pablo (author), Viebahn, Peter (author), Chappin, E.J.L. (author)
The German Energiewende is a deliberate transformation of an established industrial economy towards a nearly CO2-free energy system accompanied by a phase out of nuclear energy. Its governance requires knowledge on how to steer the transition from the existing status quo to the target situation (transformation knowledge). The energy system is,...
journal article 2020
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Duker, A.E.C. (author), Mawoyo, T.A. (author), Bolding, A. (author), de Fraiture, C. (author), van der Zaag, P. (author)
In recent years more recognition is given to the benefits and risks of private smallholder irrigation development across sub-Saharan Africa. It is acknowledged for its capacity to adapt to local circumstances and challenges. This study assesses the heterogeneous character of private smallholder irrigation in the challenging environment of...
journal article 2020
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Mahmoud, A.N.N. (author), Vanderveken, Frederic (author), Ciubotaru, Florin (author), Adelmann, Christoph (author), Cotofana, S.D. (author), Hamdioui, S. (author)
Due to their very nature, Spin Waves (SWs) created in the same waveguide, but with different frequencies, can coexist while selectively interacting with their own species only. The absence of inter-frequency interferences isolates input data sets encoded in SWs with different frequencies and creates the premises for simultaneous data parallel...
conference paper 2020
document
Mahmoud, A.N.N. (author), Vanderveken, Frederic (author), Adelmann, Christoph (author), Ciubotaru, Florin (author), Hamdioui, S. (author), Cotofana, S.D. (author)
To bring Spin Wave (SW) based computing paradigm into practice and develop ultra low power Magnonic circuits and computation platforms, one needs basic logic gates that operate and can be cascaded within the SW domain without requiring back and forth conversion between the SW and voltage domains. To achieve this, SW gates have to possess...
conference paper 2020
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Scholten, D.J. (author)
Renewable energy is the energy of the future – plentiful and ubiquitous. Technological advances and economies of scale are bringing down prices, whereas fossil and nuclear are increasingly uncompetitive. Here, the Green European Journal presents in numbers how energy systems will evolve over the decades to come, while Daniel Scholten traces the...
journal article 2019
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van der Hoek, J.P. (author), Duijff, R. (author), Reinstra, Otto (author)
Due to an increased food production the demand for nitrogen and phosphorus as fertilizers grows. Nitrogen based fertilizers are produced with the Haber-Bosch process through industrial fixation of N2 into ammonia. Through wastewater treatment the nitrogen is finally released back to the atmosphere as N2 gas. This nitrogen cycle is characterized...
book chapter 2019
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Martin, C.L. (author)
Back in 2012, a group of enthusiasts submitted a project proposal to the EU. Many talks, partner proposals, and city explorations later, City-zen was granted EU-funding “to develop and demonstrate energy efficient cities and to build a methodology and tools for cities, industries and citizens to reach the 20-20-20 targets”. The program, rooted...
book chapter 2019
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