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Saccher, M. (author), Kawasaki, S. (author), Klootwijk, Johan (author), van Schaijk, Rob (author), Dekker, R. (author)Recently, the applications of ultrasound transducers expanded from high-end diagnostic tools to point of care diagnostic devices and wireless power receivers for implantable devices. These new applications additionally require that the transducer technology must comply to biocompatibility and manufacturing scalability. In this respect,...journal article 2023
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Svejstrup, Waldemar (author), Maiani, Andrea (author), van Hoogdalem, K.A. (author), Flensberg, Karsten (author)The route to reliable quantum nanoelectronic devices hinges on precise control of the electrostatic environment. For this reason, accurate methods for electrostatic simulations are essential in the design process. The most widespread methods for this purpose are the Thomas-Fermi (TF) approximation, which provides quick approximate results,...journal article 2023
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van de Velde, Jeroen (author)Janus particles are colloidal particles for which one half of the surface has different attributes than the other half. One property of a spherical dielectric particle with half of its surface covered by a layer of another dielectric or metal is that it has a non-uniform scattering pattern when exposed to light. However, the angle with which the...bachelor thesis 2022
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Overes, Frank (author)Holistic lithography uses feedback from a chip to improve the production process for the following batches of chips. However, as the features on a chip are on a nanometer scale, acquiring feedback is not simple. The features are too small for conventional light based metrology systems, therefore, scanning electron microscopes (SEM’s) are used....master thesis 2021
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Spruit, Jan Willem (author)In this thesis the design possibilities to replace a Lavet-type motor with an electrostatic motor are investigated. At the moment, almost all quartz watches use a Lavet type of motor. Two electrostatic conceptual designs are made by Timex and Accutron. An electrostatic motor for the watch application looks promising due to the more efficient...master thesis 2021
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Boes, Deborah M. (author), Godoy Hernandez, A. (author), McMillan, D.G.G. (author)Membrane proteins can be classified into two main categories—integral and peripheral membrane proteins—depending on the nature of their membrane interaction. Peripheral membrane proteins are highly unique amphipathic proteins that interact with the membrane indirectly, using electrostatic or hydrophobic interactions, or directly, using...journal article 2021
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Kottsova, Anna K. (author), Mirzaie Yegane, M. (author), Tchistiakov, Alexei A. (author), Zitha, P.L.J. (author)We investigate the effect of pH on external hematite colloidal particles entrapment and remobilization by core-flood experiments combined with X ray computed tomography. Suspensions of calibrated hematite colloidal particles were injected into Bentheimer sandstones sample, composed mainly of well-sorted quartz and small clay fraction (up to 1...journal article 2021
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Zhang, L. (author), Garming, M.W.H. (author), Hoogenboom, J.P. (author), Kruit, P. (author)Electrostatic beam blankers are an alternative to photo-emission sources for generating pulsed electron beams for Time-resolved Cathodoluminescence and Ultrafast Electron Microscopy. While the properties of beam blankers have been extensively investigated in the past for applications in lithography, characteristics such as the influence of...journal article 2020
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Middelburg, L.M. (author), Ghaderi, M. (author), Visser, J.H. (author), Wolffenbuttel, R.F. (author)The resistive particulate matter sensor is a simple device that transduces the presence of soot through impedance change across inter-digital electrodes (IDEs). We investigate the information provided by impedance spectroscopy over the frequency range from 100 Hz to 10 kHz for two purposes. The first is to investigate the opportunities for an...journal article 2020
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Di Savino, Antonella (author), Foerster, Johannes M. (author), la Haye, D. (author), Blok, Anneloes (author), Timmer, Monika (author), Ullmann, G. Matthias (author), Ubbink, M. (author)Electrostatic interactions can strongly increase the efficiency of protein complex formation. The charge distribution in redox proteins is often optimized to steer a redox partner to the electron transfer active binding site. To test whether the optimized distribution is more important than the strength of the electrostatic interactions, an...journal article 2020
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Goyal, Jatinder (author)The gradually increasing air pollution calls for more and more effective solutions. This master thesis is focused on the investigation of aerosol trajectories inside the agricultural purifier named `ASPRA Agro', developed at VFA Solutions. Various CFD simulations have been carried out using an open-source C++ toolbox named `OpenFOAM'. The flow...master thesis 2019
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Benedysiuk, Piotr (author)The electrostatics has effect on conductance of nanowire devices. In this model electrostatics are described by nonlinear coupling of the Poisson and the Schr¨odinger equations. In presence of magnetic and electric field and spin-orbit interaction, conductance develops a feature called the helical gap. This gap is characterised by a drop of...bachelor thesis 2019
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Rahbari, A. (author), Hens, R. (author), Jamali, S.H. (author), Ramdin, M. (author), Dubbeldam, D. (author), Vlugt, T.J.H. (author)The combination of the TraPPE and OPLS/2016 force fields with five water models, TIP3P, SPC/E, OPC, TIP4P/2005 and TIP4P/EW was used to compute mixing enthalpies, excess chemical potentials and activity coefficients of water and methanol. Excess chemical potentials and activity coefficients were computed in an expanded version of the NPT...journal article 2019
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Belis, Sébastien (author)The Equivalence Principle is today challenged by some theories attempting to unify General Relativity and Quantum Mechanics. The MICROSCOPE mission thus intents to confirm or overturn this principle by testing the universality of free fall in space with an unrivaled precision objective of 10^-15. The principle of the test relies on the precise...master thesis 2018
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Keşkekler, Ata (author)From the earliest days, the phenomenon of levitation has always aroused the curiosity of humankind due to its mysterious and unique nature. Levitation systems are particularly interesting because of their non-contact characteristic which provides the possibility to isolate the levitated object from environmental effects like mechanical friction...master thesis 2018
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Anjum, Satayish Bint-e- (author)There is a rapid increase in the off-shore wind farms and the interconnection between countries which results in an increased energy transfer over longer distances. High voltage DC (HVDC) cables can transfer this energy in a reduced cost and efficient way in contrast with high voltage AC (HVAC) along with many other benefits. For the HVDC cables...master thesis 2018
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Sajadi, B. (author), Goosen, J.F.L. (author), van Keulen, A. (author)Electrostatic instability is one of the main features of many electrostatic MEMS and NEMS devices. In this paper, we investigate how the electrostatic instability of a plate-like electrode can be affected by a differential pressure. The results of this study indicate that the presence of differential pressure can have a significant influence...journal article 2018
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Sajadi, B. (author)In the last decades, Micro-Electro-Mechanical Systems (MEMS) have drawn immense attention due to their potential use in a wide variety of modern applications, including micro-mechanical sensors and actuators. MEMS are devices combining mechanical and electrical components between 1 and 100 micrometers, all integrated into a single chip. The...doctoral thesis 2017
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Singh, Manvika (author)As we are moving towards nano level devices, there is a greater need to miniaturize resonators. Miniaturization of resonators helps to attain higher sensitivity, lower power consumption, higher resonance frequency along with lesser requirement of space. Since graphene is strong and stiff and has various other exceptional mechanical properties,...master thesis 2017
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Dash, Amitosh (author)People living or working close to the highways are at risk to higher exposure levels of different air pollutants, one of which is particulate matter. The Antea group has recently proposed the addition of Electrostatic Precipitators (or ESPs) on the top of sound barriers adjacent to highways, in order to capture the particulate matter and safely...master thesis 2017