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Shakeel, A. (author), Zander, F. (author), de Klerk, Jan‑Willem (author), Kirichek, Alex (author), Gebert, J. (author), Chassagne, C. (author)Purpose<br/>The presence of organic matter in cohesive sediment results in the formation of clay-organic flocs, which eventually impart complex rheological behavior including shear-thinning, viscoelasticity, thixotropy and two-step yielding to mud. In this study, the influence of microbial degradation of sediment organic matter on the...journal article 2022
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D’Ambrosio, C. (author), Lacalandra, F. (author), Lellep, J. (author), Vuik, Cornelis (author), Bischi, A. (author), Parriani, T. (author), Martelli, E. (author), de Klerk, E. (author), Marandi, A. (author), Schewe, L. (author)This Chapter ranges through a wide variety of production and demand management problems related to energy commodities systems. The Oil and Gas production enhancement is discussed via oil wells optimal placement as well as water and gas optimal injection, namely waterflooding and gas lift. Further is analyzed the optimal schedule and design of...book chapter 2021
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van Dijk, B. (author), Allen, K.J.H. (author), Helal, M. (author), Vogely, H. C. (author), Lam, M.G.E.H. (author), de Klerk, J. M.H. (author), Weinans, Harrie (author), van der Wal, B.C.H. (author), Dadachova, E. (author)Background Implant associated infections such as periprosthetic joint infections are difficult to treat as the bacteria form a biofilm on the prosthetic material. This biofilm complicates surgical and antibiotic treatment. With rising antibiotic resistance, alternative treatment options are needed to treat these infections in the future. The...journal article 2020
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van Dijk, B. (author), Lemans, J. V.C. (author), Hoogendoorn, R. M. (author), Dadachova, E. (author), de Klerk, J. M.H. (author), Vogely, H. C. (author), Weinans, Harrie (author), Lam, M. G.E.H. (author), van der Wal, B. C.H. (author)BACKGROUND: Widespread use and misuse of antibiotics have led to a dramatic increase in the emergence of antibiotic resistant bacteria, while the discovery and development of new antibiotics is declining. This has made certain implant-associated infections such as periprosthetic joint infections, where a biofilm is formed, very difficult to...review 2020
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de Klerk, Rick (author), Velhorst, Vera (author), Veeger, H.E.J. (author), van der Woude, Lucas H.V. (author), Vegter, Riemer J.K. (author)Background: Handrim wheelchair propulsion is often assessed in the laboratory on treadmills (TM) or ergometers (WE), under the assumption that they relate to regular overground (OG) propulsion. However, little is known about the agreement of data obtained from TM, WE, and OG propulsion under standardized conditions. The current study aimed to...journal article 2020
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de Klerk, N.J.J. (author)Batteries have found widespread use, especially in mobile devices. With the inevitable energy transition the demand for batteries will rise further. Batteries for large-scale storage, transport applications and mobile devices all have different demands, requiring the development of a range of battery types for the storage of electrical energy....doctoral thesis 2019
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de Klerk, N.J.J. (author), van der Maas, E.L. (author), Wagemaker, M. (author)Molecular dynamics simulations are a powerful tool to study diffusion processes in battery electrolyte andelectrode materials. From molecular dynamics simulations, manyproperties relevant to diffusion can be obtained, including the<br/>diffusion path, amplitude of vibrations, jump rates, radial distribution functions, and collective diffusion...journal article 2018
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- de Klerk, N.J.J. (author), Wagemaker, M. (author) journal article 2018
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Vasileiadis, A. (author), Carlsen, Brian (author), de Klerk, N.J.J. (author), Wagemaker, M. (author)The main challenge of sodium-ion batteries is cycling stability, which is usually compromised due to strain induced by sodium insertion. Reliable high-voltage cathode materials are needed to compensate the generally lower operating voltages of Na-ion batteries compared to Li-ion ones. Herein, density functional theory (DFT) computations were...journal article 2018
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Marandi, Ahmadreza (author), Dahl, Joachim (author), de Klerk, E. (author)The bounded degree sum-of-squares (BSOS) hierarchy of Lasserre et al. (EURO J Comput Optim 1–31, 2015) constructs lower bounds for a general polynomial optimization problem with compact feasible set, by solving a sequence of semi-definite programming (SDP) problems. Lasserre, Toh, and Yang prove that these lower bounds converge to the optimal...journal article 2018
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de Klerk, E. (author), Lasserre, Jean B. (author), Laurent, Monique (author), Sun, Zhao (author)We provide a monotone nonincreasing sequence of upper bounds f H k (k≥1) fkH(k≥1) converging to the global minimum of a polynomial <i>f</i> on simple sets like the unit hypercube in ℝ<sup><i>n</i></sup>. The novelty with respect to the converging sequence of upper bounds in Lasserre [Lasserre JB (2010) A new look at nonnegativity on closed...journal article 2017
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de Klerk, N.J.J. (author), Vasileiadis, A. (author), Smith, Raymond B. (author), Bazant, Martin Z. (author), Wagemaker, M. (author)The improvement of Li-ion battery performance requires development of models that capture the essential physics and chemistry in Li-ion battery electrode materials. Phase-field modeling has recently been shown to have this ability, providing new opportunities to gain understanding of these complex systems. In this paper, a novel electrochemical...journal article 2017
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Klaassen, Steven W.B. (author), van der Seijs, M.V. (author), de Klerk, D. (author)This paper introduces SEMM: a method based on Frequency Based Substructuring (FBS) techniques that enables the construction of hybrid dynamic models. With System Equivalent Model Mixing (SEMM) frequency based models, either of numerical or experimental nature, can be mixed to form a hybrid model. This model follows the dynamic behaviour of a...journal article 2017
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de Klerk, N.J.J. (author), Roslon, I.E. (author), Wagemaker, M. (author)Using density functional theory molecular dynamics simulations, the origin of the Li-ion conductivity in argyrodite solid electrolytes is investigated. The simulations show that besides Li-ion vacancies in Li<sub>6</sub>PS<sub>5</sub>Cl and Li<sub>6</sub>PS<sub>5</sub>Br, the influence of halogen atoms on their local surroundings also plays...journal article 2016
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de Klerk, N.J.J. (author), Wagemaker, M. (author)Density functional theory (DFT) molecular dynamics (MD)-simulations were performed on cubic and tetragonal Na<sub>3</sub>PS<sub>4</sub>. The MD simulations show that the Na-conductivity based on the predicted self-diffusion is high in both the cubic and tetragonal phases. Higher Na-ion conductivity in Na<sub>3</sub>PS<sub>4</sub> can be...journal article 2016
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de Klerk, E. (author), Glineur, François (author), Taylor, Adrien B. (author)We consider the gradient (or steepest) descent method with exact line search applied to a strongly convex function with Lipschitz continuous gradient. We establish the exact worst-case rate of convergence of this scheme, and show that this worst-case behavior is exhibited by a certain convex quadratic function. We also give the tight worst-case...journal article 2016
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Sawhney, Nitin (author), Malhotra, Shriya (author), de Klerk, Christo (author)The challenges of engaging communities to act for common good in their own neighborhoods requires a deliberative process of decision making, seeking out shared values (or differences) and supporting creative forms of mutually-beneficial problem solving. How can one facilitate emerging patterns of co-design, tactical action, and self-organizing...conference paper 2013
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- de Klerk, J.M. (author) master thesis 2009
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- de Klerk, E. (author) doctoral thesis 1997