Results 101 to 110 of about 5,532 (307)

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

open access: yesApplied 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   +4 more
wiley   +1 more source

Weighted Measurement Fusion Particle Filter for Nonlinear Systems with Correlated Noises

open access: yesSensors, 2018
The multi-sensor information fusion particle filter (PF) has been put forward for nonlinear systems with correlated noises. The proposed algorithm uses the Taylor series expansion method, which makes the nonlinear measurement functions have a linear ...
Ke Wei Zhang, Gang Hao, Shu Li Sun
doaj   +1 more source

"On the Asymptotic Optimality of the LIML Estimator with Possibly Many Instruments" [PDF]

open access: yes
We consider the estimation of the coefficients of a linear structural equation in a simultaneous equation system when there are many instrumental variables.
Naoto Kunitomo   +2 more
core  

A Skills Gap Analysis of Farmer Directors of US Farmer Cooperatives

open access: yesAgribusiness, EarlyView.
ABSTRACT Boards of directors are vital to firm performance and are an integral part of the decision‐making process of any business. Several studies have been conducted that observe corporate or nonprofit board characteristics, skills, and the board's connection to firm performance.
Jody S. Herchenbach   +5 more
wiley   +1 more source

Inference and Optimal Design on Partially Accelerated Life Tests for the Power Half-Logistic Distribution Under Adaptive Type II Progressive Censoring

open access: yesMathematics
This study explores accelerated life tests to examine the durability of highly reliable products. These tests involve applying higher stress levels, such as increased temperature, voltage, or pressure, that cause early failures.
Hanan Haj Ahmad, Mahmoud M. El-Awady
doaj   +1 more source

Consumer Acceptance of New Sustainable Food Technologies: Upcycling Technology, Biostimulants, and Artificial Intelligence

open access: yesAgribusiness, EarlyView.
ABSTRACT Food systems have a significant impact on environmental sustainability, underscoring the need for innovative technologies to support more sustainable agricultural methods. However, the adoption of these technologies hinges on consumer acceptance, making the analysis of consumer perceptions essential.
Greta Castellini, Guendalina Graffigna
wiley   +1 more source

Limitations of the pseudoinverse method for the control over linear connected memoryless plants: guaranteed results

open access: yesДоповiдi Нацiональної академiї наук України, 2019
The paper deals with the discretetime control of the linear INTER connected memoryless plant using the pseudoinverse modelbased approach. It answers the questions related to applicability areas for this approach.
V.I. Gritsenko   +2 more
doaj   +1 more source

Modeling the separation of water‐in‐oil emulsions in continuously fed gravity settlers using millifluidic experiments

open access: yesAIChE Journal, EarlyView.
Abstract Emulsion separation remains a persistent challenge in chemical and process industries due to the metastable nature of dispersed droplets. In gravity separators, the overall separation rate is governed by the formation of a densely packed zone (DPZ) of deforming and coalescing droplets that mediates between the dispersed and continuous phases ...
Andrei Zlobin   +8 more
wiley   +1 more source

Asymptotically Optimal Smoothing with Arch Models [PDF]

open access: yesEconometrica, 1996
Summary: Suppose an observed time series is generated by a stochastic volatility model -- i.e., there is an unobservable state variable controlling the volatility of the innovations in the series. As shown by the author [J. Econom. 52, No. 1/2, 61-90 (1992; Zbl 0761.62169)], and the author and \textit{D. P. Foster} [Econometrica 62, No.
openaire   +1 more source

Asymptotic Optimality of Full Cross-validation for Selecting Linear Regression Models [PDF]

open access: yes, 2006
For the problem of model selection, full cross-validation has been proposed as alternative criterion to the traditional cross-validation, particularly in cases where the latter one is not well defined.
Droge, Bernd
core   +1 more source

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