Results 51 to 60 of about 4,381,535 (308)

Verifiable Control System Development for Gas Turbine Engines [PDF]

arXiv, 2013
A control software verification framework for gas turbine engines is developed. A stability proof is presented for gain scheduled closed-loop engine system based on global linearization and linear matrix inequality (LMI) techniques. Using convex optimization tools, a single quadratic Lyapunov function is computed for multiple linearizations near ...
arxiv  

Reverse and Forward Engineering of Local Voltage Control in Distribution Networks [PDF]

, 2018
The increasing penetration of renewable and distributed energy resources in distribution networks calls for real-time and distributed voltage control. In this paper we investigate local Volt/VAR control with a general class of control functions, and show that the power system dynamics with non-incremental local voltage control can be seen as ...
arxiv   +1 more source

Momentum state engineering and control in Bose-Einstein condensates

, 2001
We demonstrate theoretically the use of genetic learning algorithms to coherently control the dynamics of a Bose-Einstein condensate. We consider specifically the situation of a condensate in an optical lattice formed by two counterpropagating laser ...
B.J. Pearson, B.P. Anderson, B.P. Anderson, C. Cohen-Tannoudji, C. Raman, C.F. Bharucha, C.K. Law, D. A. Coley, D. Choi, D. Jaksch, E. Peik, E. Peik, E.W. Hagley, F.S. Cataliotti, J. Denschlag, J. Stenger, J.E. Simsarian, K.S. Johnson, L. Deng, M. Kozuma, M. Olshanii, M.B. Dahan, M.G. Moore, Marcus Cramer, O. Morsch, O. Zobay, P. Meystre, P.B. Blakie, Pierre Meystre, Q. Niu, R. Onofrio, R.S. Judson, S. Burger, S. Burger, S. Inouye, S. Inouye, S. Pötting, Sierk Pötting, T.C. Weinacht, U. Drodofsky, V. Milner, Ł. Dobrek   +41 more
core   +1 more source

A continuous latitudinal energy balance model to explore non-uniform climate engineering strategies [PDF]

, 2019
In order to investigate the effects of solar radiation management (SRM) technologies for climate engineering, an analytical model describing the main latitu8 dinal dynamics of the Earth’s climate with closed-loop control has been developed.
Bonetti, Federica, McInnes, Colin
core   +1 more source

Immunoregulatory mechanisms of the arachidonic acid pathway in cancer

FEBS Letters, EarlyView.
The central role of the arachidonic acid (AA) pathway in anticancer immunity. Enzymes and metabolites of the AA pathway can play both immunosuppressive and immunostimulatory roles in the tumor microenvironment. Therefore, their tailored targeting could be beneficial as a standalone therapy or in combination with current cancer immunotherapy.
Maria Tredicine, Matteo Mucci, Antonio Recchiuti, Domenico Mattoscio   +3 more
wiley   +1 more source

Intermittent Control in Man and Machine [PDF]

arXiv, 2014
Intermittent control has a long history in the physiological literature and there is strong experimental evidence that some human control systems are intermittent. Intermittent control has also appeared in various forms in the engineering literature.
arxiv  

Taurine promotes glucagon‐like peptide‐1 secretion in enteroendocrine L cells

FEBS Letters, EarlyView.
Taurine, a sulfur‐containing amino acid, is likely taken up by enteroendocrine L cells via the taurine transporter. This process increases the levels of cytosolic ATP. The increase in intracellular Ca2+ concentrations and glucagon‐like peptide‐1 secretion through membrane depolarization is caused by the closure of ATP‐sensitive potassium channels ...
Yuri Osuga, Kazuki Harada, Takuya Yamauchi, Tetsuya Kitaguchi, Masami Yokota Hirai, Mitsuharu Matsumoto, Takashi Tsuboi   +6 more
wiley   +1 more source

Design of an SI Engine Cold Start Controller based on Dynamic Coupling Analysis [PDF]

arXiv, 2017
In this paper, the dynamic couplings among different inputs and outputs of a highly nonlinear spark ignition (SI) engine control problem during the cold start phase are evaluated by using relative gain array (RGA) technique. First, based on the experimental data, a multi-input multi-output model is developed to represent the engine dynamics.
arxiv  

The multiple roles of the NlpC_P60 peptidase family in mycobacteria – an underexplored target for antimicrobial drug discovery

FEBS Letters, EarlyView.
The NlpC_P60 superfamily of peptidases is recognised by its key role in bacterial cell wall homeostasis. Recently, studies have also described the involvement of NlpC_P60‐like enzymes in bacterial competitive mechanisms and pathogenesis across several lineages.
Catharina dos Santos Silva, Marcio Vinicius Bertacine Dias   +1 more
wiley   +1 more source

Unraveling Mycobacterium tuberculosis acid resistance and pH homeostasis mechanisms

FEBS Letters, EarlyView.
Mycobacterium tuberculosis exhibits a remarkable resilience to acid stress. In this Review, we discuss some of the molecular mechanisms and metabolic pathways used by the tubercle bacilli to adapt and resist host‐mediated acid stress. Mycobacterium tuberculosis (Mtb) is a successful pathogen that has developed a variety of strategies to survive and ...
Janïs Laudouze, Stéphane Canaan, Alexandre Gouzy, Pierre Santucci   +3 more
wiley   +1 more source