- document
-
Slingerland, Bas (author)In this literature study the buckling of frames is investigated. Two frames are considered, where both consists of two columns and a girder. The first step was looking at the behavior of a single column under an compressive load. This results in so called effective lengths for different sets of boundary conditions on the column. Because in a...student report 2022
- document
-
Bot, Martijn (author)Nowadays a growing concern among the scientific community, and the wider public are pushing politicians and countries to design policies for reversing the course of warming the plant. These efforts are backed up by, for example, the Kyoto Protocol and the Paris Agreement. As resources are limited, studies have<br/>tried to identify sectors and...master thesis 2022
- document
-
Bacani, Jasmine (author), Morscher, Leon (author), Lens, Daniëlle (author), de Meijer, Barbara (author)The transition to renewable energy is necessary and urgent. Fossil fuels are depleting, leading to geopolitical instability and are driving climate change. The climate crisis and growing inequalities are among the greatest problems of the 21st century. Temperatures, sea levels and gas prices are rising. This transition poses spatial and economic...student report 2022
- document
-
Peet, Eva (author)In 2015, due to decentralisations in the social domain, municipalities became the key public authorities for youth participation in the Netherlands (RAND Europe, 2021). One year later 66% had made youth participation a policy goal, while 18% was planning to. At that time most municipalities involved young people to some extend in their policy...master thesis 2022
- document
-
Verhoeven, Pim (author)Intelligent and connected services have become essential in the manufacturing industry. The surge of these services has even started a new phase of industry; industry 4.0. The COALA consortium aims to develop a service to assist operators within this new industry. The COALA consortium is an European Union Programme and aims to develop a Digital...master thesis 2022
- document
-
Merkx, Koen (author)The International Red Cross Red Crescent Movement, ‘The Movement’, is the world’s largest humanitarian network. More than 50% of the 14 million active volunteers are youth volunteers. These youth volunteers play vital roles in humanitarian action and development around the world by addressing needs in their communities. To develop the potential...master thesis 2022
- document
-
Pérez, Jesús Vilaboa (author), Loicq, J.J.D. (author)The E-TEST project builds a prototype for the Einstein Telescope (ET). ET is a proposed gravitational-wave observatory. E-TEST includes a silicon mirror of 30 cm up to 40 cm diameter, suspended and cooled down at cryogenic temperatures from 20 K to 30 K. During the cooling down, the mirror will be affected by surface topology changes, wavefront...conference paper 2022
- document
-
van Turnhout, J. (author)The dielectric spectra of colloidal systems and other dielectric media often contain a typical low frequency dispersion, which usually remains unnoticed, because of the presence of strong conduction losses. The KK relations offer a means for converting ' into " data. This allows us to calculate conduction free " spectra in which the l.f....book chapter 2022
- document
-
Gammon, A.R. (author), Marin, L. (author)As attention to the pervasiveness and severity of environmental challenges grows, technical universities are responding to the need to include environmental topics in engineering curricula and to equip engineering students, without training in ethics, to understand and respond to the complex social and normative demands of these issues. But as...journal article 2022
- document
-
Chandrasegaran, R.S.K. (author), Akdag Salah, A.A. (author)Design thinking concepts such as framing, storytelling, and co-evolution, have been widely identified as part of design activity though generally have been evidenced from manual coding of design conversations and close reading of transcripts. The increase in easy-to-use computational linguistic methodologies provides an opportunity not only to...conference paper 2022
- document
-
Yao, Yu (author), Huang, Yunkai (author), Peng, Fei (author), Dong, J. (author), Zhu, Zichong (author)In this article, a novel dynamic-decoupled active damping current controller is proposed for an LCL-equipped high-speed permanent magnet synchronous machine. Compared with the conventional stationary current-control method for the LCL-type system, the proposed method is established in the synchronous rotating frame for improving the current...journal article 2022
- document
-
Romero, José Luis (author), van Velthoven, J.T. (author)This article considers the relation between the spanning properties of lattice orbits of discrete series representations and the associated lattice co-volume. The focus is on the density theorem, which provides a trichotomy characterizing the existence of cyclic vectors and separating vectors, and frames and Riesz sequences. We provide an...journal article 2022
- document
-
Enstad, Ulrik (author), van Velthoven, J.T. (author)This note provides new criteria on a unimodular group G and a discrete series representation (π, H<sub>π</sub>) of formal degree d<sub>π</sub>> 0 under which any lattice Γ ≤ G with vol(G/Γ)dπ≤1 (resp. vol(G/Γ)dπ≥1) admits g∈ H<sub>π</sub> such that π(Γ) g is a frame (resp. Riesz sequence). The results apply to all projective discrete...journal article 2022
- document
-
Hopf, Y.M. (author), Ossenkoppele, Boudewine W. (author), Soozande, Mehdi (author), Noothout, E.C. (author), Chang, Z.Y. (author), Chen, Chao (author), Vos, H.J. (author), Bosch, Johan G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)In this article, an application-specific integrated circuit (ASIC) for 3-D, high-frame-rate ultrasound imaging probes is presented. The design is the first to combine element-level, high-voltage (HV) transmitters and analog front-ends, subarray beamforming, and in-probe digitization in a scalable fashion for catheter-based probes. The...journal article 2022
- document
-
Bédos, Erik (author), Enstad, Ulrik (author), van Velthoven, J.T. (author)This paper provides sufficient density conditions for the existence of smooth vectors generating a frame or Riesz sequence in the lattice orbit of a square-integrable projective representation of a nilpotent Lie group. The conditions involve the product of lattice co-volume and formal dimension, and complement Balian–Low type theorems for the...journal article 2022
- document
-
Oates, L.E. (author), Edwards, Alison (author), Ersoy, A. (author), van Bueren, Ellen (author)Basic infrastructure services – water and sanitation, waste collection and management, transport, energy, and housing – form the foundation upon which cities are built. Sustainable and equitable provision of services is key to combating climate change, eradicating poverty and meeting targets set out in international sustainability agendas....journal article 2022
- document
-
Bekebrede, G. (author), Champlin, C.J. (author)The objective of the study is to illustrate the use of the frame game, RElastiCity as a framework to learn about the resilience of urban areas and the shocks and stresses in those areas. The question is if use of the frame game as a basis for game co-design is a useful approach to explore complex systems and its dynamics. This study covers the...conference paper 2022
- document
-
Soozande, Mehdi (author), Ossenkoppele, B.W. (author), Hopf, Y.M. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author), de Jong, N. (author), Vos, H.J. (author), Bosch, Johan G. (author)Atrial fibrillation (AF) is the most common cardiac arrhythmia and is normally treated by RF ablation. Intracardiac echography (ICE) is widely employed during RF ablation procedures to guide the electrophysiologist in navigating the ablation catheter, although only 2-D probes are currently clinically used. A 3-D ICE catheter would not only...journal article 2022
- document
-
Caspers, M.P.T. (author), van Velthoven, J.T. (author)Let π<sub>α</sub> be a holomorphic discrete series representation of a connected semi-simple Lie group G with finite center, acting on a weighted Bergman space Aα2(Ω) on a bounded symmetric domain Ω , of formal dimension dπα>0. It is shown that if the Bergman kernel kz(α) is a cyclic vector for the restriction π<sub>α</sub>| <sub>Γ</sub>...journal article 2022
- document
-
Vilaboa Pérez, Jesús (author), Georges, Marc (author), Lenaerts, Cédric (author), Loicq, J.J.D. (author)We describe the state of development of a white light interferometer to characterize the cryogenic mirrors for GW detector on operation. We include the first experimental results from the proof of concept of the metrology instrument. The instrument will characterize the topology as well as the vibration of the mirrors. This development takes...conference paper 2022