Results 61 to 70 of about 461,621 (293)

Fluid Models of Many-server Queues with Abandonment

, 2009
We study many-server queues with abandonment in which customers have general service and patience time distributions. The dynamics of the system are modeled using measure- valued processes, to keep track of the residual service and patience times of each
A. Mandelbaum, A. Mandelbaum, A. Mandelbaum, A. Puhalskii, A.A. Puhalskii, A.A. Puhalskii, D. Gamarnik, G. Pang, H. Kaspi, H.C. Gromoll, H.C. Gromoll, H.C. Gromoll, J. Zhang, J. Zhang, J.E. Reed, J.G. Dai, J.K. Hunter, Jiheng Zhang, K.L. Chung, L. Brown, O. Garnett, O. Kallenberg, P. Billingsley, P. Jelenković, R.M. Dudley, S. Asmussen, S. Halfin, S. Lang, S. Zeltyn, S.N. Ethier, W. Kang, W. Whitt, W. Whitt, W. Whitt   +33 more
core   +2 more sources

Transport coefficients in the one-fluid approximation

Journal of Research of the National Institute of Standards and Technology, 1977
Some comments of the justification of writing the viscosity and thermal conductivity coefficients of a mixture in the one-fluid approximation are presented. Anomalous behavior in the critical region is discussed.
openaire   +2 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Numerical investigation of the flow of a micropolar fluid through a porous channel with expanding or contracting walls

Propulsion and Power Research, 2014
In this paper, we study the flow of a micropolar fluid in a porous channel with expanding or contracting walls. First, we use spectral collocation method on the governing equations to obtain an initial approximation for the solution of equations.
M.T. Darvishi, F. Khani, F.G. Awad, A.A. Khidir, P. Sibanda   +4 more
doaj   +1 more source

Using Relative Entropy to Find Optimal Approximations: an Application to Simple Fluids

, 2008
We develop a maximum relative entropy formalism to generate optimal approximations to probability distributions. The central results consist in (a) justifying the use of relative entropy as the uniquely natural criterion to select a preferred ...
Adib, Amari, Amari, Ariel Caticha, Barker, Betancourt-Cárdenas, Bravo Yuste, Bravo Yuste, Callen, Campbell, Caticha, Caticha, Caticha, Caticha, Caticha, Chih-Yuan Tseng, Csiszar, Germain, Hansen, Hansen, Jaynes, Jaynes, Jaynes, Jaynes, Kalikmanov, Levelt, López de Haro, Mansoori, Percus, Percus, Shore, Shore, Skilling, Skilling, Skilling, Tang, Thiele, Throop, Tseng, Tseng, Urbic, Valeriani, Verlet, Weeks, Weeks, Wertheim, Wertheim, Čencov   +47 more
core   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Invariant states and rates of Convergence for a critical fluid model of a processor sharing queue

, 2004
This paper contains an asymptotic analysis of a fluid model for a heavily loaded processor sharing queue. Specifically, we consider the behavior of solutions of critical fluid models as time approaches \infty.
Puha, Amber L., Williams, Ruth J.
core   +3 more sources

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

On the power of (even a little) resource pooling

Stochastic Systems, 2012
We propose and analyze a multi-server model that captures a performance trade-off between centralized and distributed processing. In our model,a fraction p of an available resource is deployed in a centralized manner (e.g., to serve a most-loaded station)
Kuang Xu, John N. Tsitsiklis
doaj  

Assessment of fluid neutral models for a detached ITER case

Nuclear Materials and Energy, 2017
We compare the plasma sources (particle, parallel momentum and ion energy) due to plasma-neutral interactions computed with different fluid neutral models with the sources from a Monte Carlo simulation of the kinetic neutral equation.
N. Horsten, W. Dekeyser, G. Samaey, M. Baelmans   +3 more
doaj   +1 more source