Search Results - "Niculescu, I"

COVID-19 and Involvement of the Corpus Callosum: Potential Effect of the Cytokine Storm? by Rasmussen, C, Niculescu, I, Patel, S, Krishnan, A

“…Neurologic findings are being increasingly recognized in coronavirus disease 2019. We present a patient with a unique involvement of the corpus callosum that…”
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On polytopic inclusions as a modeling framework for systems with time-varying delays by Gielen, R.H., Olaru, S., Lazar, M., Heemels, W.P.M.H., van de Wouw, N., Niculescu, S.-I.

“…One of the important issues in networked control systems is the appropriate handling of the nonlinearities arising from uncertain time-varying delays. In this…”
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On the shape of the d¯−u¯ asymmetry by Accardi, A., Keppel, C.E., Li, S., Melnitchouk, W., Niculescu, G., Niculescu, I., Owens, J.F.

“…Using data from a recent reanalysis of neutron structure functions extracted from inclusive proton and deuteron deep-inelastic scattering (DIS), we re-examine…”
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Stabilizing a chain of integrators using multiple delays by Niculescu, S.-I., Michiels, W.

“…This note addresses the output feedback stabilization problem of a chain of integrators using multiple delays. We shall prove that either n distinct delays or…”
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A control oriented guided tour in oilwell drilling vibration modeling by Saldivar, B., Mondié, S., Niculescu, S.-I., Mounier, H., Boussaada, I.

“…In drilling operations, the interaction of the drillstring with the borehole leads to vibrations affecting the performance and increasing the drilling cost…”
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Influenza virus infection: an approach to identify predictors for in-hospital and 90-day mortality from patients in Vienna during the season 2017/18 by Pawelka, E., Karolyi, Mario, Daller, S., Kaczmarek, C., Laferl, H., Niculescu, I., Schrader, B., Stütz, C., Zoufaly, A., Wenisch, C.

“…Background Seasonal influenza outbreaks are associated with increased mortality and hospitalisation rates. Herein we tried to identify predictors of mortality…”
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A versatile analytical representation of the different aircraft wings by NICULESCU, Valentin I. R., POPESCU, Dumitru, POPESCU, Alin Gabriel

“…This paper presents an analytical method to describe the shape of an airplane wing. The analytical shape of the wing section implies analytical expressions for…”
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Proportional-delayed controllers design for LTI-systems: a geometric approach by Hernández-Díez, J.-E., Méndez-Barrios, C.-F., Mondié, S., Niculescu, S.-I., González-Galván, E.J.

“…This paper focuses on the design of P-δ controllers for single-input-single-output linear time-invariant systems. The basis of this work is a geometric…”
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On the passivity of linear delay systems by Niculescu, S.-I., Lozano, R.

“…This note presents some sufficient conditions for a linear system with (point or distributed) delay in the state to be passive. Passivity based (memoryless)…”
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Stabilization of time-delay systems with a Controlled time-varying delay and applications by Michiels, W., Van Assche, V., Niculescu, S.-I.

“…We study the stability of a linear system with a point-wise, time-varying delay. We assume that the delay varies around a nominal value in a deterministic way…”
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Mathematical Description of the Functioning of the Pulsatory Liposome by POPESCU, Dumitru, IGA, Dumitru Petru, POPESCU, Alin Gabriel, NICULESCU, Valentin I. R.

“…We consider a liposome filled with the aqueous solution of an osmotic solute enclosed in a large water bath. Due to osmotic pressure, it works according to a…”
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The quantum states for Hydrogen atom: spherical harmonics and the orbitals geometrical representation by CONSTANTIN, D., PREDA, L., MOCANU, A. A., POPESCU, D., PRICOPI, D., NICULESCU, V. I.

“…Our work utilizes the quantum model of the hydrogen atom which is based on the Schrödinger equation with Coulomb potential. Specifically, we concentrate on the…”
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Successful management of the first reported case in Austria of COVID-19 with ARDS by Seitz, T., Hoepler, W., Weseslindtner, L., Aberle, J. H., Aberle, S. W., Puchhammer-Stoeckl, E., Baumgartner, S., Traugott, M., Karolyi, M., Pawelka, E., Niculescu, I., Friese, E., Neuhold, S., Stahl, D., Madl, C., Zoufaly, A., Wenisch, C., Laferl, H.

“…We report the successful management of a patient with severe respiratory failure due to COVID-19 admitted to an intensive care unit complicated by secondary…”
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A practical iterative PID tuning method for mechanical systems using parameter chart by Kang, M., Cheong, J., Do, H.M., Son, Y., Niculescu, S.-I.

“…In this paper, we propose a method of iterative proportional-integral-derivative parameter tuning for mechanical systems that possibly possess hidden…”
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Global asymptotic stabilization for chains of integrators with a delay in the input by Mazenc, F., Mondie, S., Niculescu, S.-I.

“…The problem of the global uniform asymptotic stabilization by bounded feedback of a chain of integrators with a delay in the input is solved. No limitation on…”
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On the stability of linear systems with uncertain delay by Kharitonov, V.L., Niculescu, S.-I.

“…This paper focuses on the stability of some class of delay systems, including uncertainty in the delays. More precisely, we are interested in guaranteeing the…”
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Additional dynamics in transformed time-delay systems by Keqin Gu, Niculescu, S.-I.

“…In studying the stability of time delay systems, many published results use a transformation to transform a system with single time delay to a system with…”
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Further remarks on additional dynamics in various model transformations of linear delay systems by Keqin Gu, Niculescu, S.-I.

“…This paper focuses on the analysis of conservatism introduced due to some model transformations used in the control literature. This work is an extension of a…”
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On the analysis of a dynamical model representing gene regulatory networks under negative feedback by Ahsen, M.E., Özbay, H., Niculescu, S-I.

“…SUMMARY In this work, stability analysis is performed for a cyclic dynamical model of gene regulatory networks involving time delays, under negative feedback…”
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Stability of linear neutral time-delay systems: exact conditions via matrix pencil solutions by Peilin Fu, Niculescu, S.-I., Jie Chen

“…In this note, we study the stability properties of linear neutral delay systems. We consider systems described by both neutral differential-difference and…”
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