Results 31 to 40 of about 11,227,595 (139)

Risk management externalities in agrifood supply chains

American Journal of Agricultural Economics, EarlyView.
Abstract Firms may under‐ or over‐invest in risk management from the social planner's perspective, resulting in a negative externality on other economic agents in the supply chain. The externality of risk management is particularly relevant for agrifood supply chains, which frequently experience disruptions and play a primary role in preventing major ...
Jeffrey Hadachek, Meilin Ma
wiley   +1 more source

A Consensus Approach to Distributed Convex Optimization in Multi-Agent Systems [PDF]

, 2013
In this thesis we address the problem of distributed unconstrained convex optimization under separability assumptions, i.e., the framework where a network of agents, each endowed with local private convex cost and subject to communication constraints ...
Filippo Zanella, Zanella, Filippo
core  

Sustainability and Value Transitions: The Strategic Role of Cross‐Sectoral Interconnectedness and Transition Brokers

Business Strategy and the Environment, EarlyView.
ABSTRACT Climate economics is undergoing rapid transformation, reconfiguring the foundations of sustainability transitions. This study develops a systems‐based perspective that foregrounds the strategic role of cross‐sectoral interconnectedness and transition brokers in shaping these transitions.
Ionna Trofimova‐Elliot
wiley   +1 more source

Evaluation of Flow Rate Correction in Water Pipeline Distribution Network by Two Numerical Methods of Solution

Journal of Applied Sciences and Environmental Management, 2019
This study evaluates flow rate correction and approximate flow rates in  loops for three different case studies of closed looped pipe distribution network systems using Hardy Cross and Newton Raphson.
OH Lasisi, JR Adewumi, KH Lasisi
doaj   +1 more source

A partial envelope approach for modelling multivariate spatial‐temporal data

Canadian Journal of Statistics, EarlyView.
Abstract In the new era of big data, modelling multivariate spatial‐temporal data is a challenging task due to both the high dimensionality of the features and complex associations among the responses across different locations and time points.
Reisa Widjaja, Wenbo Wu, Victor De Oliveira, Keying Ye   +3 more
wiley   +1 more source

Characteristics Analysis and Stage Division of Class Ⅰ Gas Hydrate Deposit Developed by Vertical Well and Depressurization Based on Numerical Analysis

Energy Science &Engineering, EarlyView.
The production process can be divided into two stages according to the relationship between the gas production rate and the decomposition gas rate. The ratio of cumulative decomposition gas to cumulative gas production can be used to evaluate the contribution of the gas hydrate layer.
Nu Lu, Bo Zhang, Jian Hou, Yajie Bai, Yongge Liu   +4 more
wiley   +1 more source

Numerical and simulation analysis comparison of hydraulic network problem base on higher-order efficiency approach

Alexandria Engineering Journal, 2021
The hydraulic network study is a real-life engineering problem extensively base on applied and computational approaches. Several numerical schemes are tested for defining of hydraulic pipe networks solution, such as, Hardy Cross Method, Newton Method and
Waseem Asghar Khan
doaj   +1 more source

Historical Development of the Newton-Raphson Method [PDF]

, 1995
This expository paper traces the development of the Newton-Raphson method for solving nonlinear algebraic equations through the extant notes, letters, and publications of Isaac Newton, Joseph Raphson, and Thomas Simpson.
Ypma, Tjalling
core  

Two Two‐Tier Stochastic Frontier Replications

Journal of Applied Econometrics, EarlyView.
ABSTRACT We replicate the two foundational studies which proposed the two‐tier stochastic frontier model, first in the cross‐sectional setting and then for the fixed effects panel data model. We explore matters of software then and now, different mathematical formulations of the likelihood, and alternative current software tools.
Alecos Papadopoulos, Christopher Parmeter   +1 more
wiley   +1 more source

An Improved Air Film Model for Studying the Tilt Characteristics of Aerostatic Thrust Bearings

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this study, an improved mass‐spring model that treats the lubricating air film as distributed springs is proposed to calculate the static and dynamic angular stiffness of aerostatic thrust bearings. The proposed model refines the traditional mass‐spring model by introducing the spatially varying mechanical properties of the air film and the
Hui Zhuang, Jianguo Ding, Yu Chang
wiley   +1 more source