Results 41 to 50 of about 23,100 (313)

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková, Michiel van Dijk, Robert M'Barek, Hans van Meijl, Tomas Ratinger   +4 more
wiley   +1 more source

Computation of a Reference Model for Robust Fault Detection and Isolation Residual Generation

Journal of Control Science and Engineering, 2008
This paper considers matrix inequality procedures to address the robust fault detection and isolation (FDI) problem for linear time-invariant systems subject to disturbances, faults, and polytopic or norm-bounded uncertainties.
Emmanuel Mazars, Imad M. Jaimoukha, Zhenhai Li   +2 more
doaj   +1 more source

Do Tax Incentives for Farmland Leases Increase Farm Supply? Evidence From Iowa's Beginning Farmer Tax Credit

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT In recent decades, agriculture has become increasingly concentrated through horizontal mergers and acquisitions via corporate entities, and policy makers are concerned this will be exacerbated by the aging population of farm operators. To reduce market concentration in agriculture, many states have enacted policies to entice new prospective ...
Justin M. Ross, Wesley M. Zebrowski, Julia C. D. Valliant   +2 more
wiley   +1 more source

Analysis of Robust Stability for a Class of Stochastic Systems via Output Feedback: The LMI Approach

Journal of Function Spaces and Applications, 2013
This paper investigates the robust stability for a class of stochastic systems with both state and control inputs. The problem of the robust stability is solved via static output feedback, and we convert the problem to a constrained convex optimization ...
Xin-rong Cong, Long-suo Li
doaj   +1 more source

Robust H infty filtering for uncertain differential linear repetitive processes

, 2008
The unique characteristic of a repetitive process is a series of sweeps or passes through a set of dynamics defined over a finite duration known as the pass length.
Rogers, E, Paszke, W, Wu, L, Lam, J, Galkowski, K   +4 more
core   +1 more source

Foreign labor, peer‐networking and agricultural efficiency in the Italian dairy sector

Agribusiness, EarlyView.
Abstract While the presence of immigrants in the agricultural sector is widely acknowledged, the empirical evidence on its economic consequences is lacking, especially from a microeconomic perspective. Using the Farm Accountancy Data Network panel data for Italian dairy farms in the period 2008–2018, the present study investigates the relationship ...
Federico Antonioli, Simone Severini, Mauro Vigani   +2 more
wiley   +1 more source

An improved stability criterion for discrete-time time-delayed Lur'e system with sector-bounded nonlinearities

Automatika, 2022
The absolute stability problem of discrete-time time-delayed Lur'e systems with sector bounded nonlinearities is investigated in this paper. Firstly, a modified Lyapunov-Krasovskii functional (LKF) is designed with augmenting additional double summation ...
Lijuan Zhu, Chengyun Zhu
doaj   +1 more source

H/sub /spl infin// control of differential linear repetitive processes

, 2006
—Repetitive processes are a distinct class of two-dimensional (2-D) systems (i.e., information propagation in two independent directions) of both systems theoretic and applications interest.
Paszke, W., Owens, D.H., Galkowski, K., Rogers, Eric   +3 more
core   +1 more source

Infeasibility certificates for linear matrix inequalities [PDF]

, 2011
Research in Pairs 2010Farkas' lemma is a fundamental result from linear programming providing linear certi cates for infeasibility of systems of linear inequalities. In semidefinite programming, such linear certificates only exist for strongly infeasible
Schweighofer, Markus, Klep, Igor
core   +2 more sources

The Feedback Control Strategy of the Takagi-Sugeno Fuzzy Car-Following Model with Two Delays

Journal of Control Science and Engineering, 2016
Considering the driver’s sensing the headway and velocity the different time-varying delays exist, respectively, and the sensitivity of drivers changes with headway and speed. Introducing the fuzzy control theory, a new fuzzy car-following model with two
Cong Zhai, Weiming Liu, Ling Huang
doaj   +1 more source