Searched for: subject:"stability"
(1 - 20 of 436)

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SoltanRezaee, Masoud (author), Bodaghi, Mahdi (author), Farrokhabadi, Amin (author), Hedayati, R. (author)
The main objective of this research is to provide a general nonlinear model of adjustable piezoelectric microwires with the ability to tune the stability conditions. In order to increase the controllability and improve system characteristics, only a part of the substrate is electrostatically actuated and the piezoelectric voltage is also...
journal article 2019
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Oluic, M. (author)
Among a wide variety of topics that are covered by Dynamic Security Assessment (DSA), maintaining synchronous operation and acceptable voltage profiles stand out. These two stability categories are mostly jeopardized in the seconds after a large contingency occurs. Therefore, this thesis tackles the two aspects of large disturbance stability of...
doctoral thesis 2019
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Jing, Guoqing (author), Qie, Luchao (author), Markine, V.L. (author), Jia, J. (author)
During the development for railway, ballasted track is dominant structure and makes up more than 95% of the whole track modes. However, its shortage is considerable in high speed railway and heavy haul system. Regarding to the ballasted railway track's defects as particle breakage, settlement, and geometry irregularity which lead to enormous...
review 2019
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Sunil, E. (author)
The current system of Air Traffic Control (ATC) relies on a centralized control architecture. At its core, this system is heavily dependent on manual intervention by human Air Traffic Controllers (ATCos) to ensure safe operations. The capacity of this system is, therefore, closely tied to the maximum workload that can be tolerated by ATCos....
doctoral thesis 2019
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Varkey, D. (author), Hicks, M.A. (author), Vardon, P.J. (author)
An improved semi-analytical method for calculating the reliability of 3D slopes with spatially varying shear strength parameters is proposed. The response of an existing semi-analytical method has been compared with that of the computationally more intensive, but more general, random finite element method (RFEM), demonstrating that the simpler...
journal article 2019
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Poort, Jonah P. (author), Ramdin, M. (author), van Kranendonk, J. (author), Vlugt, T.J.H. (author)
Vapor-liquid phase equilibrium —flash— calculations largely contribute to the total computation time of many process simulations. As a result, process simulations, especially dynamic ones, are limited in the amount of detail that can be included due to simulation time restrictions. In this work, artificial neural networks were investigated...
journal article 2019
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Gnann, M.V. (author), Ibrahim, Slim (author), Masmoudi, Nader (author)
=0 with a zero contact angle at the free boundary, that is, at the triple junction where liquid, gas, and solid meet. Previous results on stability and well-posedness of this equation have focused on perturbations of equilibrium-stationary or self-similar...
journal article 2019
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van Gent, Marcel R.A. (author), de Almeida Sousa, E. (author), Hofland, B. (author)
Physical model tests were performed in a wave flume at Deltares with rock armoured slopes. A shallow foreshore was present. At deep water, the same wave conditions were used, but by applying different water levels, the wave loading on the rock armoured slopes increased considerably with increasing water levels. This allowed an assessment of the...
journal article 2019
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Altartouri, H. (author), Roshanbin, A. (author), Andreolli, G. (author), Fazzi, L. (author), Karasek, M. (author), Lalami, Mohamed Esseghir (author), Preumont, André (author)
Hovering flapping wing flight is intrinsically unstable in most cases and requires active flight stabilization mechanisms. This paper explores the passive stability enhancement with the addition of top and bottom sails, and the capability to predict the stability from a very simple model decoupling the roll and pitch axes. The various...
journal article 2019
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Remmerswaal, G. (author), Bolognin, M. (author), Vardon, P.J. (author), Hicks, M.A. (author), Rohe, A. (author)
This paper describes current work on the implementation of non-trivial boundary conditions (BCs) for improving the general applicability of the Material Point Method (MPM) to geotechnical boundary values problems. It summarises novel boundary treatments (non-trivial BCs) in MPM for (i) flow conditions, as well as (ii) the application of a...
conference paper 2019
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Wang, H. (author), Lu, Guoyang (author), Feng, Shuyin (author), Wen, Xiaobo (author), Yang, Jun (author)
on the electrical and thermal conductivity, conventional physical properties,...
journal article 2019
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Zhang, Zhixia (author), Zhang, Long (author), Yan, Xinlin (author), Wang, Hongqiang (author), Liu, Yanyan (author), Yu, C. (author), Cao, Xiaoting (author), van Eijck, L. (author), Wen, Bin (author)
Br as solid electrolyte synthesized by a facile solid-state sintering. Different from other O-incorporated sulfides,...
journal article 2019
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Chen, B. (author), Hajimolana, S. (author), Venkataraman, V. (author), Ni, Meng (author), Purushothaman Vellayani, P.V. (author)
The power to gas process concept is promising for the next generation of grid electricity storage and stabilization technologies. The electricity-driven fuel production can be chosen to be the efficient energy carrier for excessive grid power. Here, a reversible solid oxide cells system integrated with methane synthesis (ReSOC-MS) is proposed...
journal article 2019
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Ozgun, H. (author), Ersahin, M.E. (author), Zhou, Z. (author), Tao, Y. (author), Spanjers, H. (author), van Lier, J.B. (author)
This study provides a comparison of the sludge characteristics along the height of an upflow anaerobic sludge blanket (UASB) reactor in terms of sludge morphology, activity and stability. The main aim of this study was to identify the best location (i.e. where sludge is of lowest stability and/or highest concentration) in the sludge bed for...
journal article 2019
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Ren, J. (author), Marxen, Olaf (author), Pecnik, R. (author)
We investigate the hydrodynamic stability of compressible boundary layers over adiabatic walls with fluids at supercritical pressure in the proximity of the Widom line (also known as the pseudo-critical line). Depending on the free-stream temperature and the Eckert number that determines the viscous heating, the boundary-layer temperature...
journal article 2019
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Vuillot, C. (author), Lao, L. (author), Criger, D.B. (author), García Almudever, C. (author), Bertels, K.L.M. (author), Terhal, B.M. (author)
The large-scale execution of quantum algorithms requires basic quantum operations to be implemented fault-tolerantly. The most popular technique for accomplishing this, using the devices that can be realized in the near term, uses stabilizer codes which can be embedded in a planar layout. The set of fault-tolerant operations which can be...
journal article 2019
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Ikeda, Yuji (author), Grabowski, Blazej (author), Körmann, F.H.W. (author)
Multicomponent alloys with multiple principal elements including high entropy alloys (HEAs) and compositionally complex alloys (CCAs) are attracting rapidly growing attention. The endless possibilities to explore new alloys and the hope for better combinations of materials properties have stimulated a remarkable number of research works in...
review 2019
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Cremer, Jochen L. (author), Konstantelos, Ioannis (author), Tindemans, S.H. (author), Strbac, Goran (author)
Supervised machine learning has been successfully used in the past to infer a system's security boundary by training classifiers (also referred to as security rules) on a large number of simulated operating conditions. Although significant research has been carried out on using classifiers for the detection of critical operating points, using...
journal article 2019
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Schmaltz, Elmar M. (author), Van Beek, L. P.H. (author), Bogaard, T.A. (author), Kraushaar, Sabine (author), Steger, Stefan (author), Glade, Thomas (author)
Despite the importance of land cover on landscape hydrology and slope stability, the representation of land cover dynamics in physically based models and their associated ecohydrological effects on slope stability is rather scarce. In this study, we assess the impact of different levels of complexity in land cover parameterisation on the...
journal article 2019
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Schrijvers, Jim (author), van den Noort, Josien C. (author), van der Esch, Martin (author), Dekker, Joost (author), Harlaar, J. (author)
Background: Instability of the knee joint during gait is frequently reported by patients with knee osteoarthritis or an anterior cruciate ligament rupture. The assessment of instability in clinical practice and clinical research studies mainly relies on self-reporting. Alternatively, parameters measured with gait analysis have been explored...
review 2019
Searched for: subject:"stability"
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