Searched for: subject%3A%22Pointing%22
(1 - 20 of 132)

Pages

document
Berghuis, N.F. (author), Mars-Groenendijk, R.H. (author), Busker, R.W. (author), Paauw, A. (author), van Leeuwen, H.C. (author)
CRISPR–Cas (CC)-based detection technologies have some exceptional features, which hold the promise of developing into the nextgeneration diagnostic platforms. One of these features is the ability to trigger non-specific single-stranded DNA/RNA cleavage activity after specific target recognition and Cas enzyme activation. This cleavage activity...
article 2022
document
Liu, D. (author), van den Boom, S.J. (author), Simone, A. (author), Aragon, A.M. (author)
We propose an enriched finite element formulation to address the computational modeling of contact problems and the cou pling of non-conforming discretizations in the small deformation setting. The displacement field is augmented by enriched terms that are associated with generalized degrees of freedom collocated along non-conforming interfaces...
article 2022
document
Lanooy, T. (author), Brink, N.J. (author), Kornaat, W. (author), Borsboom, W.A. (author)
The building airtightness is essential to achieve a high energy performance. In most countries however, it is not mandatory to measure the airtightness. In the Netherlands it is common practice to just take a couple samples in a housing project. These samples do not give a good indication for all the buildings in a project. It is therefore...
article 2021
document
Cornelissen, R. (author), Maljaars, J. (author), Hofmeyer, H. (author)
Curved aluminium extrusions are applied in a wide range of industrial applications. Because extrusions are initially straight, an additional process is required to curve the product. Undesired wrinkling of the plate part at the inner radius is frequently observed during the curving process. Wrinkling has already been extensively studied for the...
article 2021
document
Huizinga, W. (author), van Lier, M. (author), Kruithof, M. (author), Dijk, J. (author)
conference paper 2021
document
Kramer, L. (author), Peters, J. (author), Voorhoeve, R.J. (author), Witvoet, G. (author), Kuiper, S. (author)
The demand for higher data transfer between satellites and ground stations is ever increasing. To address this, (free-space) optical communication (OC) technology is emerging. Pointing mechanisms with low size, weight and power (SWaP), high accuracy and low recurring costs are key enablers for constellations of OC systems. In this paper, TNO...
conference paper 2020
document
Behrouzian, A.R.B. (author), Goswami, D. (author), Basten, T. (author), Geilen, M. (author), Alizadeh Ara, H. (author), Hendriks, M. (author)
(m, k)-firm real-time tasks require meeting the deadline of at least m jobs out of any k consecutive jobs. When compared to hard real-time tasks, (m, k)-firm tasks open up the possibility of tighter resource-dimensioning in implementations. Firmness analysis verifies the satisfaction of (m, k)-firmness conditions. Scheduling policies under which...
conference paper 2020
document
Hendrickx, N.W. (author), Tagliaferri, M.L.V. (author), Kouwenhoven, M. (author), Li, R. (author), Franke, D.P. (author), Sammak, A. (author), Brinkman, A. (author), Scappucci, G. (author), Veldhorst, M. (author)
We fabricate Josephson field-effect transistors in germanium quantum wells contacted by superconducting aluminum and demonstrate supercurrents carried by holes that extend over junction lengths of several micrometers. In superconducting quantum point contacts we observe discretization of supercurrent, as well as Fabry-Perot resonances,...
article 2019
document
Gezici-Koc, Ö. (author), Erich, S.J.F. (author), Huinink, H.P. (author), van der Ven, L.G.J. (author), Adan, O.C.G. (author)
In addition to the desired aesthetical properties, a coating is applied to protect against weathering. A coating prevents moisture accumulation in wood by reducing the water uptake into the wood by its barrier function. The studies in the coating permeability has gained interest with the shift towards waterborne coatings, which make coatings...
article 2019
document
Dresscher, M. (author), Human, J.D. (author), Witvoet, G. (author), van der Heiden, N. (author), den Breeje, R. (author), Kuiper, S. (author), Fritz, E.C. (author), Korevaar, C.W. (author), van der Valk, N.C.J. (author), de Lange, T.J. (author), Saathof, R. (author), Doelman, N.J. (author), Crowcombe, W.E. (author), Duque, C.M. (author), de Man, H. (author)
The anticipated capacity benefit of optical satellite communications has triggered a cascade of technology developments. In this paper, we present three such technologies, namely; i). A cube satellite laser terminal (CubeCAT), ii). A lower Earth orbit satellite optical head (LEOCAT) and iii). A calibration and verification test bench for coarse...
conference paper 2019
document
Wimmer, A. (author), Ritsema, R. (author), Schuster, M. (author), Krystek, P.W. (author)
Detection and quantification of trace elements in aqueous samples is crucial in terms of environmental monitoring and risk assessment for (heavy) metals in the environment. Silver (Ag) in its nanoparticulate form is commonly used as antimicrobial additive in consumer products and pharmaceuticals. Since released dissolved Ag species act as the...
article 2019
document
Saathof, R. (author), Crowcombe, W.E. (author), Kuiper, S. (author), van der Valk, N.C.J. (author), Pettazzi, F. (author), de Lange, T.J. (author), Kerkhof, P.J. (author), van Riel, M.C.J.M. (author), de Man, H. (author), Truyens, D.C. (author), Ferrario, I. (author)
Optical communications will complement radio frequency (RF) communications in the coming decades to enhance throughput, power efficiency and link security of satellite communication links. To enable optical communications technology for intersatellite links and (bi-directional) ground to satellite links, TNO develops a suite of technologies in...
conference paper 2018
document
Witvoet, G. (author), Kuiper, S. (author), Meskers, A.J.H. (author)
This paper presents the first test results of a novel Fine Steering Mirror (FSM) for optical communication terminals. The FSM utilizes efficient variable reluctance actuators, tailored for the specific application, making it highly compact and power efficient. The test results demonstrate a high dynamical performance of <1.7kHz closed-loop...
conference paper 2018
document
Gunkel, S.N.B. (author), Stokking, H.M. (author), Prins, M.J. (author), van der Stap, N. (author), ter Haar, F.B. (author), Niamut, O.A. (author)
Virtual Reality (VR) and 360-degree video are set to become part of the future social environment, enriching and enhancing the way we share experiences and collaborate remotely. While Social VR applications are getting more momentum, most services regarding Social VR focus on animated avatars. In this demo, we present our efforts towards Social...
conference paper 2018
document
Klusener, S. (author), Mooij, A.J. (author), Ketema, J. (author), van Wezep, H. (author)
When software components are developed iteratively, code frequently evolves in an inductive manner: A unit is created and is then copied and modified many times. Such development often happens when variation points and, hence, proper domain abstractions are initially unclear. As a result, there may be substantial amounts of code duplication, and...
conference paper 2018
document
Atli-Veltin, B. (author)
The main objective of the experimental study detailed in this paper is to investigate the performance of fully recyclable, lightweight, low-cost, thermoplastic Polypropylene (PP) composite tapes at low temperatures. Coupons made of [±45] and [0/90] laminates are subjected to tensile and 3-point bending tests at room temperature as well as at ...
article 2018
document
Kuang, Y. (author), Zardetto, V. (author), van Gils, R. (author), Karwal, S. (author), Koushik, D. (author), Verheijen, M.A. (author), Black, L.E. (author), Weijtens, C. (author), Veenstra, S.C. (author), Andriessen, H.A.J.M. (author), Kessels, W.M.M. (author), Creatore, M. (author)
In this work, we present an extensive characterization of plasma-assisted atomic-layer-deposited SnO2 layers, with the aim of identifying key material properties of SnO2 to serve as an efficient electron transport layer in perovskite solar cells (PSCs). Electrically resistive SnO2 films are fabricated at 50 °C, while a SnO2 film with a low...
article 2018
document
Nelisse, R.M.L. (author), Vrouwenvelder, A.C.W.M. (author)
Article 13 of the EU Directive on minimum safety requirements for tunnels in the Trans-European Road Network states that a risk analysis, where necessary, shall be carried out. In the Netherlands, the risk of death for road users in a tunnel is calculated with a model for quantitative risk analysis, which is called “QRA-tunnels”. QRA-tunnels is...
conference paper 2017
document
van der Aa, P. (author), Manie, J. (author)
Finite element analysis (FEA) can be used to design structures. Methods for linear and nonlinear FEA are applied to all kinds of geometries. A simplified geometry structure, or basic element type, sometimes does take into account all the necessary effects for the design purposes. In other analyses more advanced modelling is absolutely necessary....
conference paper 2017
document
Neumann, N. (author), Phillipson, F. (author)
conference paper 2017
Searched for: subject%3A%22Pointing%22
(1 - 20 of 132)

Pages