Results 21 to 30 of about 3,117,054 (342)

Generalized linear‐constrained optimal power flow for distribution networks

open access: yesIET Generation, Transmission & Distribution, 2023
Optimal power flow (OPF) plays an important role in the secure and economical operation of the distribution network. This paper proposes a novel generalized linear‐constrained optimal power flow (GLOPF) model for both radial and mesh distribution ...
Biao Li   +4 more
doaj   +1 more source

Coal flow volume measurement based on linear model partitioning

open access: yesGong-kuang zidonghua, 2023
The precision and computational efficiency of coal quantity measurement for belt conveyors based on linear laser stripes are low. There is a trailing phenomenon during belt operation, as well as data misalignment caused by deviation and drifting.
CHEN Xiangyuan, XUE Xusheng
doaj   +1 more source

Complex flow patterns at the onset of annular electroconvection in a dielectric liquid subjected to an arbitrary unipolar injection [PDF]

open access: yes, 2015
We numerically investigated the annular electroconvection that takes place in a dielectric liquid lying between two concentric cylinder electrodes. A uniform injection of arbitrary strengths either from the inner or outer cylinder introduces free charge ...
Pérez Izquierdo, Alberto Tomás   +3 more
core   +2 more sources

Flow Analysis, Linearity, and PTIME [PDF]

open access: yes, 2008
Flow analysis is a ubiquitous and much-studied component of compiler technology---and its variations abound. Amongst the most well known is Shivers' 0CFA; however, the best known algorithm for 0CFA requires time cubic in the size of the analyzed program and is unlikely to be improved.
Van Horn, David, Mairson, Harry G.
openaire   +2 more sources

Stability properties of the collective stationary motion of self-propelling particles with conservative kinematic constraints [PDF]

open access: yes, 2006
In our previous papers we proposed a continuum model for the dynamics of the systems of self-propelling particles with conservative kinematic constraints on the velocities. We have determined a class of stationary solutions of this hydrodynamic model and
A V Zvelindovsky   +10 more
core   +2 more sources

A gradient flow approach to linear Boltzmann equations

open access: yes, 2020
We introduce a gradient flow formulation of linear Boltzmann equations.
Basile, Giada   +2 more
core   +1 more source

Multi-Angle Liquid Flow Measurement Using Ultrasonic Linear Array Transducer

open access: yesSensors, 2020
Most ultrasonic flowmeters utilize several wedge sensors for transmission and reception. Thus, the location and alignment of the sensors are critical factors that determine the performance of the ultrasonic flowmeter.
Thi Huong Ly Nguyen, Suhyun Park
doaj   +1 more source

Linear/Quadratic Programming-Based Optimal Power Flow using Linear Power Flow and Absolute Loss Approximations

open access: yes, 2017
This paper presents novel methods to approximate the nonlinear AC optimal power flow (OPF) into tractable linear/quadratic programming (LP/QP) based OPF problems that can be used for power system planning and operation.
Demiray, Turhan, Fortenbacher, Philipp
core   +1 more source

Non-linear laminar flow into eccentrically placed well

open access: yesAnnals of Geophysics, 1975
In steady s t a t e condition, non-linear laminar flow of fluid into an eccentrically placed well is considered. Its influence on tlic discharge and t h e dependence on r e l a t e d physical q u a n t i t i e s is investigated. I t is ...
K. K. UPADHYAY
doaj   +1 more source

Scaling of the Strain Hardening Modulus of Glassy Polymers with the Flow Stress

open access: yes, 2009
In a recent letter, Govaert et al. examined the relationship between strain hardening modulus $G_r$ and flow stress $\sigma_{flow}$ for five different glassy polymers.
Argon   +25 more
core   +3 more sources

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