Searched for: subject:"microscopy"
(1 - 20 of 28)

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Wilding, D. (author)
The goal of this thesis, called Physical and Computational Approaches to Aberration Correction In Fluorescence Microscopy, concerns itself with the development of new techniques to control adaptive fluorescence microscopes, so that they can adapt and image with increased resolution, contrast and speed inside complex three-dimensional biological...
doctoral thesis 2018
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Antolović, I.M. (author)
The aim of this research is to explore the potential advantages of SPAD imagers used in microscopy. An ideal microscopy detector requires high sensitivity (high quantum efficiency QE or photon detection probability PDP), photon counting operation, low noise (dark current or dark count rate), timing resolution in the order of 100 ps, frame rate...
doctoral thesis 2018
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Wilding, D. (author), Pozzi, P. (author), Soloviev, O.A. (author), Vdovine, Gleb (author), Fiolka, Reto (author), Verhaegen, M.H.G. (author)
The light-sheet fluorescence microscopy is an excellent tool for the investigation of large three dimensional microscopy samples at the cellular level, however, the ability to resolve features is strongly affected by the presence of scattering and aberrations. These effects are two fold in light-sheet microscopy, as the illumination path...
conference paper 2018
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Rooij, Mario (author), França de Mendonça Filho, F. (author)
In this article a trip is taken to characterize concrete through its hardened cement paste based on its microstructure. Optical microscopy is coupled to advanced image analysis, as well as statistical data analysis to characterize heterogeneous concrete material. The article takes a closer look at the determination of the w/c ratio through the...
conference paper 2017
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Wilding, D. (author), Pozzi, P. (author), Soloviev, O.A. (author), Vdovine, Gleb (author), Verhaegen, M.H.G. (author)
Aberrations, scattering and absorption degrade the performance light-sheet fluorescence microscopes (LSFM). An adaptive optics system to correct for these artefacts and to optimize the light-sheet illumination is presented. This system allows a higher axial resolution to be recovered over the field-of-view of the detection objective. It is...
conference paper 2016
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Van der Velde, O. (author), Copuroglu, O. (author), Veer, F.A. (author)
This paper shows the benefit of using transmitted light microscopy together with a Z-scanning software in fractographical analyses of glass. The strength of glass is largely dependent on processes that happen at the microscale. In this research, 52 plates were fractured in a biaxial tensile test. These were divided into five categories according...
conference paper 2015
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Moolman, M.C. (author)
Investigating DNA replication in live E. coli cells using fluorescence microscopy and microfluidics.
doctoral thesis 2015
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Narváez, A.C. (author)
Cathodoluminescence (CL), the excitation of light by an electron beam, has gained attention as an analysis tool for investigating the optical response of a structure, at a resolution that approaches that in electron microscopy, in the nanometer range. However, the application possibilities are limited because the use of transparent substrates,...
doctoral thesis 2014
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Damsgaard, C.D. (author), Zandbergen, H.W. (author), Hansen, T.W. (author), Chorkendorff, I. (author), Wagner, J.B. (author)
Specimen transfer under controlled environment conditions, such as temperature, pressure, and gas composition, is necessary to conduct successive complementary in situ characterization of materials sensitive to ambient conditions. The in situ transfer concept is introduced by linking an environmental transmission electron microscope to an in...
journal article 2014
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Heyer, A. (author)
Microbiologically influenced corrosion (MIC) is known to be a dangerous process in ship tanks due to its rapid and yet unpredictable occurrence, leading to extremely fast local corrosion, possibly jeopardizing the structural integrity, in a relatively short time. This project focuses on a fundamental understanding of MIC processes in ship...
doctoral thesis 2013
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Celler, K. (author), Picioreanu, C. (author), Van Loosdrecht, M.C.M. (author), Van Wezel, G.P. (author)
Successful application of a computational model for rational design of industrial Streptomyces exploitation requires a better understanding of the relationship between morphology—dictated by microbial growth, branching, fragmentation and adhesion—and product formation. Here we review the state-of-the-art in modeling of growth and product...
journal article 2012
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Hulsken, B. (author), Vossen, D. (author), Stallinga, S. (author)
Array illuminators generating spots with high NA at high efficiency are presented. They are designed via application of high-NA scalar optics methods, and implemented as periodic binary phase structures. These array illuminators are used in a multi-spot scanning microscope for scanning large sample areas with a relatively high resolution.
journal article 2012
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Wassink, J. (author)
Some 350 years after Antonie van Leeuwenhoek’s landmark invention, Delft has made another breakthrough in microscopy with a single device which combines optical and electron techniques
journal article 2012
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Lubelli, B. (author), Nijland, T.G. (author), Van Hees, R.P.J. (author)
Lime mortars have, up to a certain extent, a self-healing capacity which may contribute to their durability. Self-healing in lime mortars consists of a process of dissolution, transport and re-precipitation of calcium compounds to heal cracks and fissures. The spontaneous occurrence of self-healing in lime-based mortars is a well known...
journal article 2011
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Goetz, W. (author), Pike, W.T. (author), Hviid, S.F. (author), Madsen, M.B. (author), Morris, R.V. (author), Hecht, M.H. (author), Staufer, U. (author), Leer, K. (author), Sykulska, H. (author), Hemmig, E. (author), Marshall, J. (author), Morookian, J.M. (author), Parrat, D. (author), Vijendran, S. (author), Bos, B.J. (author), El Maarry, M.R. (author), Keller, H.U. (author), Kramm, R. (author), Markiewicz, W.J. (author), Drube, L. (author), Blaney, D. (author), Arvidson, R.E. (author), Bell, J.F. (author), Reynolds, R. (author), Smith, P.H. (author), Woida, P. (author), Woida, R. (author), Tanner, R. (author)
The optical microscope onboard the Phoenix spacecraft has returned color images (4 ?m pixel?1) of soils that were delivered to and held on various substrates. A preliminary taxonomy of Phoenix soil particles, based on color, size, and shape, identifies the following particle types [generic names in brackets]: (1) reddish fines, mostly unresolved...
journal article 2010
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Li, D.U. (author), Arlt, J. (author), Richardson, J. (author), Walker, R. (author), Buts, A. (author), Stoppa, D. (author), Charbon, E. (author), Henderson, R. (author)
A compact real-time fluorescence lifetime imaging microscopy (FLIM) system based on an array of low dark count 0.13?m CMOS singlephoton avalanche diodes (SPADs) is demonstrated. Fast background-insensitive fluorescence lifetime determination is achieved by use of a recently proposed algorithm called ‘Integration for Extraction Method’ (IEM) [J....
journal article 2010
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Gaitas, A. (author), Zhu, W. (author), Gulari, N. (author), Covington, E. (author), Kurdak, C. (author)
Metal microbolometers, used in scanning thermal microscopy, were microfabricated from <20?nm titanium thin films on SiO2/Si3N4/SiO2 cantilevers. These thin films are near the metal-insulator transition regime such that as the film thickness decreases—the resistance increases and the current-voltage characteristics cross over from sublinear to...
journal article 2009
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Vermolen, B.J. (author)
Cancer is one of the most well-known groups of diseases that finds its cause in cells having chromosomal aberrations. How and why these aberrations can occur is one of the most important questions asked in modern molecular biology. In the last decades it has become clear that gene regulation in the nucleus, where the chromosomes reside, is...
doctoral thesis 2009
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Seo, M.A. (author), Adam, A.J.L. (author), Kang, J.H. (author), Lee, J.W. (author), Ahn, K.J. (author), Park, Q.H. (author), Planken, P.C.M. (author), Kim, D.S. (author)
We performed terahertz near-field experiments on single rectangular holes with various lengths grown on an electro-optic crystal substrate with ?/100 resolution. We find that the near-field amplitude becomes proportionally larger as the rectangle becomes narrower, strongly suggesting that a constant energy passes through even for a very narrow...
journal article 2008
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Docter, M.W. (author), Van den Berg, P.M. (author), Alkemade, P.F.A. (author), Kutchoukov, V.G. (author), Piciu, O.M. (author), Bossche, A. (author), Young, I.T. (author), Garini, Y. (author)
journal article 2007
Searched for: subject:"microscopy"
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