Searched for: collection%3Air
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document
Yuan, S. (author), Zhang, Lixian (author), Baldi, S. (author)
In the presence of discontinuous time-varying delays, neither Krasovskii nor Razumikhin techniques can be successfully applied to adaptive stabilization of uncertain switched time-delay systems. This paper develops a new adaptive control scheme for switched time-delay systems that can handle impulsive behavior in both states and time-varying...
journal article 2019
document
Zhang, Baocheng (author), Teunissen, P.J.G. (author), Yuan, Yunbin (author), Zhang, Xiao (author), Li, Min (author)
Sensing the ionosphere with the global positioning system involves two sequential tasks, namely the ionospheric observable retrieval and the ionospheric parameter estimation. A prominent source of error has long been identified as short-term variability in receiver differential code bias (rDCB). We modify the carrier-to-code leveling (CCL), a...
journal article 2018
document
Yuan, S. (author), Zhang, Lixian (author), De Schutter, B.H.K. (author), Baldi, S. (author)
In this paper, a novel Lyapunov function is proposed to study switched linear systems with a switching delay between activation of system modes and activation of candidate controller modes. The novelty consists in continuity of the Lyapunov function at the switching instants and discontinuity when the system modes and controller modes are...
journal article 2018
document
Yuan, S. (author), Zhang, Lixian (author), Holub, Ondrej (author), Baldi, S. (author)
This letter introduces a new switched adaptive control mechanism that can cope with parametric uncertainty while using discrete and saturated actuators. Control of air handling units (AHUs), where air and water supply have discrete and saturated characteristics, is the motivational drive behind this letter. We show that the cheap actuation...
journal article 2018
document
Yuan, S. (author), Zhang, F. (author), Baldi, S. (author)
In this paper, adaptive tracking control of switched nonlinear systems in the parametric strict-feedback form is investigated. After defining a reparametrisation lemma in the presence of a non-zero reference signal, we propose a new adaptive backstepping design of the virtual controllers that can handle the extra terms arising from the...
journal article 2017
document
Wang, Wei (author), Yang, Kai (author), Muñoz Sierra, Julian (author), Zhang, X. (author), Yuan, Shoujun (author), Hu, Zhenhu (author)
Methyl isobutyl ketone (MIBK) as a solvent is extensively used for the phenols extraction from the wastewater, so it is unavoidable to expose in the effluent due to the solubility and leakage problem. The present study evaluated the impact of MIBK on phenols degradation in an UASB reactor and analyzed its degradation properties. The results...
journal article 2017
document
Zhang, Y. (author), Shi, W. (author), Shen, Z. (author), Man, Z. (author), Min, C. (author), Shen, J. (author), Zhu, S. (author), Urbach, H.P. (author), Yuan, X. (author)
Typically, metal particles are difficult to manipulate with conventional optical vortex (OV) tweezers, because of their strong absorption and scattering. However, it has been shown that the vortex field of surface plasmonic polaritons, called plasmonic vortex (PV), is capable of stable trapping and dynamic rotation of metal particles, especially...
journal article 2015
document
Man, Z. (author), Du, L. (author), Min, C. (author), Zhang, Y. (author), Zhang, C. (author), Zhu, S. (author), Urbach, H.P. (author), Yuan, X.C. (author)
Vector beams, which have space-variant state of polarization (SOP) comparing with scalar beams with spatially homogeneous SOP, are used to manipulate surface plasmon polarizations (SPPs). We find that the excitation, orientation, and distribution of the focused SPPs excited in a high numerical aperture microscopic configuration highly depend on...
journal article 2014
document
Zhang, Y. (author), Wu, X. (author), Min, C. (author), Zhu, S. (author), Urbach, H.P. (author), Yuan, X. (author)
Monitoring the cells’ apoptosis progression could provide a valuable insight into the temporal events that initiate cell death as well as the potential for rescue of apoptotic cells. In this paper, we engineered a novel and robust method for monitoring apoptosis of tumor cells based on dynamic laser tweezers, using A549 and HeLa cell line as...
journal article 2014
document
Wong, C.K.Y. (author), Leung, S.Y.Y. (author), Poelma, R.H. (author), Jansen, K.M.B. (author), Yuan, C.C.A. (author), Van Driel, W.D. (author), Zhang, G. (author)
Atomistic coarse grained parameters were calculated from a non-equilibrium molecular dynamics simulation of the separation of an epoxy-copper interface. The methodology to determine the interaction energy and the equilibrium distance between the interfacial materials at a minimum energy is established. The traction-displacement relations of the...
journal article 2012
document
Chen, X. (author), Yuan, C. (author), Wong, C.K.Y. (author), Zhang, G. (author)
A molecular modeling strategy is proposed to describe the temperature (T) dependence of solubility parameter (?) for the amorphous polymers which exhibit glass-rubber transition behavior. The commercial forcefield “COMPASS” is used to support the atomistic simulations of the polymer. The temperature dependence behavior of ? for the polymer is...
journal article 2011
document
Chen, X.P. (author), Wong, C.K.Y. (author), Yuan, C.A. (author), Zhang, G.Q. (author)
We report a molecular modeling study to evaluate and select conducting polymers (CPs) as the sensing materials of carbon dioxide (CO2) sensor. The interaction between polymer and gas and the adsorption of the gas molecules in the polymer matrix are investigated. Polymers considered for this work include emeraldine base polyaniline (EB–PANI) and...
journal article 2011
document
Chen, X. (author), Yuan, C.A. (author), Wong, K.Y. (author), Zhang, G.Q. (author)
Molecular dynamics (MD) and molecular mechanical (MM) analysis are carried out to provide reliable and accurate model for emeraldine base polyaniline. This study validate the forcefields and model with the physical and mechanical properties of the polyaniline. The temperature effects on non-bond energy, potential energy and solubility parameter...
journal article 2010
document
Yuan, C.A. (author), Van der Sluis, O. (author), Zhang, G.Q. (author), Ernst, L.J. (author), Van Driel, W.D. (author), Flower, A.E. (author), Van Silfhout, B.R. (author)
We propose an amorphous/porous molecular connection network generation algorithm for simulating the material stiffness of a low-k material (SiOC:H). Based on a given concentration of the basic building blocks, this algorithm will generate an approximate and large amorphous network. The molecular topology is obtained by distributing these blocks...
journal article 2008
document
Yuan, C.A. (author), Zhang, G.Q. (author), Han, C.N. (author), Chiang, K.N. (author), Cui, Y. (author)
The mechanical characteristics of the long-chain double-stranded DNA (dsDNA) molecule under the axial stretching and lateral unzipping are studied by the clustered atomistic-continuum method (CACM). The CACM consisted of the clustered atom method (CAM) and the atomistic-continuum method (ACM). The CAM treats the specific atomic group as the...
journal article 2007
document
Dawotola, A.W. (author), Yuan, C.A. (author), Van Driel, W.D. (author), Bakkers, E.P.A.M. (author), Zhang, G.Q. (author)
conference paper 2007
document
Yuan, C. (author), Van Der Sluis, O. (author), Zhang, G.Q. (author), Ernst, L.J. (author), Van Driel, W.D. (author), Van Silfhout, R.B.R. (author), Thijsse, B.J. (author)
conference paper 2007
Searched for: collection%3Air
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