Searched for: subject%3A%22PVA%22
(1 - 13 of 13)
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Surkatti, Riham (author), van Loosdrecht, Mark C.M. (author), Hussein, Ibnelwaleed A. (author), El-Naas, Muftah H. (author)
This study investigates the development of polyvinyl alcohol (PVA) gel matrices for biomass immobilization in wastewater treatment. The PVA hydrogels were prepared through a freezing–thawing (F-T) cross-linking process and reinforced with high surface area nanoparticles to improve their mechanical stability and porosity. The PVA/nanocomposite...
journal article 2024
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Zhang, Shizhe (author), He, S. (author), Ghiassi, Bahman (author), van Breugel, K. (author), Ye, G. (author)
This paper presents an experimental study on the interface bonding properties of polyvinyl alcohol (PVA) fiber in alkali-activated slag/fly ash (AASF) pastes. Three interface bonding properties (i.e., the chemical bonding energy Gd, the initial frictional bond strength τ0, and slip-hardening behavior) were determined using single-fiber pullout...
journal article 2023
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Zhang, Shizhe (author)
Alkali-activated Materials (AAMs), including those classified as geopolymer, are obtained through the reaction between a solid precursor and an alkaline solution. Compared with ordinary Portland cement (OPC) binders, these materials maintain comparable mechanical properties but have the advantage of reducing greenhouse gas emissions and...
doctoral thesis 2022
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Martelli, Davide (author)
Cost and lifetime requirements are two of the key drivers for the development of complex systems for modern space missions. As a consequence, system reliability is a factor of primary concern, requiring appropriate analyses. A closely related topic is the study of the effects induced by failures to which the system may be subjected, necessary to...
master thesis 2022
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Somerwil, Flip (author)
The goal of this study is to create a phantom which can be used to test strategies for sealing the vaginal cavity, so that ultrasound gel can be used to fill the vaginal cavity improve the visibility of the vaginal cavity in MR-images.<br/>Silicone rubber and PolyVinyl Alcohol (PVA) were tested, to check whether their mechanical properties can...
master thesis 2021
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Zhang, Shizhe (author), Duque-Redondo, Eduardo (author), Kostiuchenko, A. (author), Sanchez Dolado, J. (author), Ye, G. (author)
This paper aims to study the adhesion mechanism of polyvinyl alcohol (PVA) fiber within alkali-activated slag/fly ash (AASF) matrix using molecular dynamics (MD) simulation in combination with systematic experimental characterization. The adhesion of PVA to C-(N-)A-S-H gel with different Ca/(Si+Al) and Al/Si ratios was modeled using MD...
journal article 2021
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Somerwil, P.C. (author), Nout, Remi A. (author), Mens, Jan Willem M. (author), Kolkman-Deurloo, Inger Karine K. (author), Van Beekhuizen, Heleen J. (author), Dankelman, J. (author), van de Berg, N.J. (author)
Brachytherapy is a common treatment in cervical, uterine and vaginal cancer management. The technique is characterised by rapid developments in the fields of medical imaging, dosimetry planning and personalised medical device design. To reduce unnecessary burden on patients, assessments and training of these technologies should preferable be...
journal article 2021
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Veldman, Ellen (author)
Prostate cancer is the most frequently diagnosed type of cancer among males. Brachytherapy has become a common treatment for this disease. In this form of radiotherapy, sealed radiation sources are placed through a implant catheters inside the prostate. This treatment affects the tumor cells locally and reduces damage to healthy tissues. However...
master thesis 2020
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Dik, Emilie (author)
Brain, outside the body, will decay quickly, causing ex vivo studies to be difficult. Having a phantom model has a great beneficial value for numerous reasons. Phantoms are, among others, used in research centres, to validate new equipment, to develop biomechanical models or to test new treatment methods. They are representations of organs or...
master thesis 2019
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Paknahad, A. (author), Petre, Daniela G. (author), Leeuwenburgh, Sander C.G. (author), Sluys, Lambertus J. (author)
Because of their chemical similarity to the mineral phase of bone and teeth, calcium phosphate cements (CPCs) are extensively investigated for applications in biomedicine. Nevertheless, their applicability in load-bearing anatomical sites is restricted by their brittleness. Reinforcement of calcium phosphate cements with polymeric fibers can...
journal article 2019
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Nedeljković, Marija (author), Lukovic, M. (author), van Breugel, K. (author), Hordijk, D.A. (author), Ye, G. (author)
This paper presents a development of a ductile alkali-activated fly ash (FA) and ground granulated blast furnace slag (GBFS) based composite as an environmentally friendly material for structural concrete application. For this purpose, polyvinyl alcohol (PVA) fibres and sand aggregate were combined with alkali-activated paste. Workability,...
journal article 2018
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de Jong, T.L. (author), Pluymen (student), L.H. (author), van Gerwen, D.J. (author), Kleinrensink, GJ (author), Dankelman, J. (author), van den Dobbelsteen, J.J. (author)
Medical phantoms can be used to study needle-tissue interaction and to train medical residents. The purpose of this research is to study the suitability of polyvinyl alcohol (PVA) as a liver tissue mimicking material in terms of needle-tissue interaction. Insertions into ex-vivo human livers were used for reference. Six PVA samples were...
journal article 2017
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Perfetti, G. (author), Alphazan, T. (author), Wildeboer, W.J. (author), Meesters, G.M.H. (author)
journal article 2012
Searched for: subject%3A%22PVA%22
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