Searched for: subject%3A%22Darkness%22
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Visser, P.M. (author), Eijt, S.W.H. (author), de Nijs, J.V. (author)
Context. Modified Newtonian dynamics (MOND) is a promising alternative to dark matter. To further test the theory, there is a need for fluid- and particle-dynamics simulations. The force in MOND is not a direct particle-particle interaction, but derives from a potential for which a nonlinear partial differential equation (PDE) needs to be...
journal article 2024
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Smolders, Vera (author)
Light pollution is becoming an issue due to the excessive use of Artificial Light at Night (ALAN). This thesis explores the design potentials of bioluminescent algae to integrate more darkness into our urban nightscapes, with a design exploration on the TU Delft campus. The goal is to find out if bioluminescent algae can be used to design for...
master thesis 2023
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Abarca, Accel (author), Theuwissen, A.J.P.A.M. (author)
This paper presents a novel technique for dark current compensation of a CMOS image sensor (CIS) by using in-pixel temperature sensors (IPTSs) over a temperature range from −40 °C to 90 °C. The IPTS makes use of the 4T pixel as a temperature sensor. Thus, the 4T pixel has a double functionality, either as a pixel or as a temperature sensor....
journal article 2023
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Oosthoek, K. (author), van Staalduinen, Mark (author), Smaragdakis, G. (author)
The Dark Web, primarily Tor, has evolved to protect user privacy and freedom of speech through anonymous routing. However, Tor also facilitates cybercriminal actors who utilize it for illicit activities. Quantifying the size and nature of such activity is challenging, as Tor complicates indexing by design. This paper proposes a methodology to...
journal article 2023
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Teeuwen, Tom (author)
<b>OBJECTIVE </b>This study aims to compare non-invasive real-time optical imaging and measuring methods for the quantification of microcirculation of organs during normothermic machine perfusion (NMP). This could help to determine which method is most promising for further development towards a clinical objective transplantability assessment...
master thesis 2022
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Koole, Elsemieke (author)
This thesis addresses the problem of light pollution in cities, caused by public lighting. Currently, 99% of American and European citizens live under light-polluted skies (Falchi et al, 2016). Light pollution has measurable negative effects, as it increases energy consumption, disrupts ecosystems and wildlife and harms human health (IDA, 2013)....
master thesis 2022
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Liu, Darwin (author)
The Bullet Cluster is a galaxy cluster, which is often used as evidence for dark matter [10]. In this thesis, Modified Newtonian Dynamics (MOND) is studied for various interpolation functions on a model of the Bullet<br/>Cluster. MOND is a theory proposed by Milgrom which modifies the Newtonian gravity law, such that it explains the flat...
bachelor thesis 2022
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van Driel, Tim (author)
In this design study a new design is proposed for an in situ surface inspection tool that can rapidly detect micrometer sized water droplets on a silicon wafer. This surface inspection tool is part of a proposed redesign of the thermal conditioning stage of VDL-ETGs atmospheric wafer handler. A meticulous requirements study was performed, and...
master thesis 2022
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Schokker, Odessa (author)
In this thesis Modified Newtonian Dynamics (MOND) is explored in galaxy clusters similar to the Virgo cluster. MOND is a theory proposed to explain the flat rotation curves of galaxies and the velocities of galaxies within galaxy clusters, as an alternative to the Dark Matter (DM) model. MOND states that Newton’s law of gravitation is incorrect...
bachelor thesis 2022
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Abarca Prouza, A.N. (author)
This thesis describes the integration of temperature sensors into a CMOS image sensor (CIS). The temperature sensors provide the in-situ temperature of the pixels as well as the thermal distribution of the pixel array. The temperature and the thermal distribution are intended to be used to compensate for dark current affecting the CIS. Two...
doctoral thesis 2021
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Koopmans, Léon V.E. (author), Barkana, Rennan (author), Bentum, Mark (author), Bernardi, Gianni (author), Boonstra, Albert Jan (author), Bowman, Judd (author), Burns, Jack (author), Chen, Xuelei (author), Gurvits, L. (author)
The Dark Ages and Cosmic Dawn are largely unexplored windows on the infant Universe (z ~ 200–10). Observations of the redshifted 21-cm line of neutral hydrogen can provide valuable new insight into fundamental physics and astrophysics during these eras that no other probe can provide, and drives the design of many future ground-based...
journal article 2021
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Booij, Tim M. (author), Verburgh, Thijmen (author), Falconieri, Federico (author), van Wegberg, R.S. (author)
Dark net markets are a competitive environment. As these anonymous markets enable criminals to trade illicit goods or services, this causes vendors to operate under pseudonyms, rather than real-world identities. The constant battle between market admins and law enforcement makes the typical lifespan of a market two years. When a market...
conference paper 2021
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Schütte-Engel, Jan (author), Marsh, David J.E. (author), Millar, Alexander J. (author), Sekine, Akihiko (author), Chadha-Day, Francesca (author), Hoof, Sebastian (author), Ali, M.N. (author), Fong, Kin Chung (author), Hardy, Edward (author)
It has been suggested that certain antiferromagnetic topological insulators contain axion quasiparticles (AQs), and that such materials could be used to detect axion dark matter (DM). The AQ is a longitudinal antiferromagnetic spin fluctuation coupled to the electromagnetic Chern-Simons term, which, in the presence of an applied magnetic...
journal article 2021
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Mattei, Vieri (author)
Modified Newtonian Dynamics (MOND) can account for a variety of phenomena on galactic scales without the need for dark matter, but it cannot fully explain the mass contained in galaxy clusters. We explore two possible solutions to this problem: relativistic extensions of MOND, and FEM simulations of the apparent matter distribution in clusters,...
master thesis 2020
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Abarca Prouza, A.N. (author), Theuwissen, A.J.P.A.M. (author)
This article presents in-pixel (of a CMOS image sensor (CIS) temperature sensors with improved accuracy in the spatial and the temporal domain. The goal of the temperature sensors is to be used to compensate for dark (current) fixed pattern noise (FPN) during the exposure of the CIS. The temperature sensors are based on substrate parasitic...
journal article 2020
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Tu, Zhichao (author)
Spirituality in Gibraltar follows its own local logic. Around the base of the rock, in the dense town and port, cultures mix and intersect and negotiate in streets and buildings. Churches, mosques and synagogues, religions have found places – sometimes highly traditional senses in their symbolism, sometimes not. These communities reach a balance...
master thesis 2020
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Xie, S. (author), Abarca Prouza, A.N. (author), Theuwissen, A.J.P.A.M. (author)
This brief proposes employing each of the classical 4 transistor (4T) pinned photodiode (PPD) CMOS image sensor (CIS) pixels, for both imaging and temperature measurement, intended for compensating the CISs' dark current, and dark signal non-uniformity (DSNU). The proposed temperature sensors rely on the thermal behavior of MOSFETs working in...
journal article 2020
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García-Depraect, Octavio (author), Muñoz, Raúl (author), van Lier, J.B. (author), Rene, Eldon R. (author), Diaz-Cruces, Víctor F. (author), León-Becerril, Elizabeth (author)
This study evaluated a novel three-stage process devoted to the cascade production of lactate, biohydrogen and methane from tequila vinasse (TV), with emphasis on attaining a high and stable biohydrogen production rate (HPR) by utilizing lactate as biohydrogen precursor. In the first stage, tailored operating conditions applied to a sequencing...
journal article 2020
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Subramaniam, Sownder (author)
The perovskite solar cells (PSCs) comfortably placed close to the top of record power conversion efficiency chart for lab scale solar cells is not sold in the market. Yes, this statement can be a dictionary example for the word 'oxymoron'. Even with improving efficiencies recorded every now and then and with good material properties for a good...
master thesis 2019
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Xie, S. (author), Theuwissen, A.J.P.A.M. (author)
This paper analyzes and compensates for process and temperature dependency among a (Complementary Metal Oxide Semiconductor) CMOS image sensor (CIS) array. Both the analysis and compensation are supported with experimental results on the CIS’s dark current, dark signal non-uniformity (DSNU), and conversion gain (CG). To model and to...
journal article 2019
Searched for: subject%3A%22Darkness%22
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