Results 91 to 100 of about 73,266 (262)

Numerical simulation of an array of heaving floating point absorber wave energy converters using OpenFOAM [PDF]

open access: yes, 2017
In this paper we use the CFD toolbox OpenFOAM to perform numerical simulations of multiple floating point absorber Wave Energy Converters (WECs) in a numerical wave basin.
Devolder, Brecht   +2 more
core   +1 more source

A Robust Model Predictive Control Approach for Autonomous Underwater Vehicles Operating in a Constrained workspace

open access: yes, 2018
This paper presents a novel Nonlinear Model Predictive Control (NMPC) scheme for underwater robotic vehicles operating in a constrained workspace including static obstacles.
Heshmati-alamdari, Shahab   +3 more
core   +2 more sources

Rural Capitalists and Development in Colonial Africa: A Comparative Analysis

open access: yesJournal of Agrarian Change, EarlyView.
ABSTRACT This paper explores the emergence and role of rural capitalists in colonial Sub‐Saharan Africa by comparing three peasant‐based economies: Bechuanaland, the Gold Coast and Tanganyika. Using social tables, we estimate the population and income shares of better earning agricultural producers and assess their impact on rural inequality and ...
Prince Young Aboagye   +2 more
wiley   +1 more source

Performing Micro‐Role Transitions in Open Strategy

open access: yesJournal of Management Studies, EarlyView.
Abstract Open strategy (OS) requires contributors with a variety of functional backgrounds to episodically perform a strategy role in addition to their functional responsibilities. These actors engage in micro‐role transitions as they temporarily shift from one role to another.
Anna Plotnikova   +2 more
wiley   +1 more source

Synthesis of fuzzy sliding mode controller for liquid level control in spherical tank

open access: yesCogent Engineering, 2016
Spherical tanks are often used in process industries as storage or surge tank where control of level is essential. The liquid level in the spherical tank is modeled using first principle technique. A sliding mode controller (SMC) is designed initially to
C. Sreepradha   +4 more
doaj   +1 more source

Genetic programming for the automatic design of controllers for a surface ship [PDF]

open access: yes, 2008
In this paper, the implementation of genetic programming (GP) to design a contoller structure is assessed. GP is used to evolve control strategies that, given the current and desired state of the propulsion and heading dynamics of a supply ship as ...
D.J. Murray-Smith   +3 more
core   +1 more source

How Governmental Policies Shape Supply Chain Learning and Responsiveness: A Service Triad Approach to Higher Education

open access: yesJournal of Supply Chain Management, EarlyView.
ABSTRACT Higher education institutions (HEIs) play a crucial role in shaping the future by educating students, advancing research, and fostering innovation. Societies, including those in developing countries, face wicked problems such as climate change, social and economic inequality, and geopolitical tensions that require all stakeholders, including ...
Mohammad Moshtari, Aline P. Seepma
wiley   +1 more source

Design criteria for a type of asymmetric orifice in a surge tank using CFD

open access: yesEngineering Applications of Computational Fluid Mechanics, 2018
An asymmetric orifice can be added to a surge tank of a hydro power plant to dampen the mass oscillation. This allows a reduction of the required volume and a more stable behavior of the overall hydraulic system. In this paper, the advantage of a typical
Roman Gabl, Maurizio Righetti
doaj   +1 more source

The ‘State Patriotic Turn’: State Ideology and History According to the Russian Military Historical Society, 2022–2024

open access: yesNations and Nationalism, EarlyView.
ABSTRACT The Russian Military Historical Society (RMHS) was founded in 2012 on President Vladimir Putin's orders. Since Russia's invasion of Ukraine in February 2022, the society's members have not only published propaganda to support the ‘special military operation’ but have discussed the need for a proper ‘state ideology’.
Kati Parppei
wiley   +1 more source

Modeling and Controlling Flow Transient in Pipeline Systems: Applied for Reservoir and Pump Systems Combined with Simple Surge Tank

open access: yesRevue Marocaine des Sciences Agronomiques et Vétérinaires, 2014
When transient conditions (water hammer) exist, the life expectancy of the system can be adversely impacted, resulting in pump and valve failures and catastrophic pipe rupture.
Itissam ABUIZIAH   +5 more
doaj  

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