Determination of the neutron spin structure function

PL Anthony, RG Arnold, HR Band, H Borel… - Physical Review Letters, 1993 - APS
The spin structure function of the neutron g 1 n has been determined over the range 0.03<
x< 0.6 at an average Q 2 of 2 (GeV/c) 2 by measuring the asymmetry in deep inelastic …

Regulation of irrigation canals: characterisation and classification

PO Malaterre - Irrigation and drainage systems, 1995 - Springer
This article suggests and defines a characterisation of irrigation canal regulation methods,
based on four criteria: considered variables (controlled, measured, and control action …

Simple water level controller for irrigation and drainage canals

J Schuurmans, A Hof, S Dijkstra, OH Bosgra… - Journal of irrigation …, 1999 - ascelibrary.org
A simple water level controller for irrigation and drainage canals is proposed; the proposed
controller has a master-slave structure where the slaves control the flow rates through the …

[HTML][HTML] Analytical approximation of open-channel flow for controller design

X Litrico, V Fromion - Applied Mathematical Modelling, 2004 - Elsevier
The integrator delay (ID) model is a popular and simple way to model a canal for control
purposes. In this paper, particular attention is given to accurately model the delay and the …

Experimental validation of a methodology to control irrigation canals based on Saint-Venant equations

X Litrico, V Fromion, JP Baume, C Arranja… - Control engineering …, 2005 - Elsevier
This paper exposes and validates a methodology based on a classical hydraulic model
(Saint-Venant equations) to design efficient automatic controllers for an irrigation canal pool …

Control of irrigation canals: why and how?

PO Malaterre - Numerical modelling of hydrodynamics for water …, 2007 - taylorfrancis.com
The objective of this survey paper is to review, structure and analyze the main concepts
involved in the control of irrigation canals, and to illustrate them on a canal benchmark. After …

Nonlinear control of open-channel water flow based on collocation control model

JF Dulhoste, D Georges, G Besançon - Journal of Hydraulic …, 2004 - ascelibrary.org
This paper is devoted to the nonlinear control of open-channel water flow dynamics via a
one-dimensional collocation control model for irrigation canals or dam-river systems. Open …

Modelling and PI control of an irrigation canal

X Litrico, V Fromion, JP Baume… - 2003 European Control …, 2003 - ieeexplore.ieee.org
The main goal of this paper is to expose and validate a methodology to design efficient
automatic controllers for irrigation canals, based on the Saint-Venant model. This model …

Boundary control of linearized Saint-Venant equations oscillating modes

X Litrico, V Fromion - Automatica, 2006 - Elsevier
The paper investigates the control of oscillating modes occurring in open-channels, due to
the reflection of propagating waves on the boundaries. These modes are well represented …

Distributed approximation of open-channel flow routing accounting for backwater effects

S Munier, X Litrico, G Belaud, PO Malaterre - Advances in Water Resources, 2008 - Elsevier
In this article, we propose a new model, called LBLR for Linear Backwater Lag-and-Route,
which approximates the Saint-Venant equations linearized around a non-uniform flow in a …