Results 121 to 130 of about 24,624,953 (354)

Multi-Domain Simulation: Mechanics and Hydraulics of an Excavator

open access: yes, 2003
It is demonstrated how to model and simulate an excavator with Modelica and Dymola by using Modelica libraries for multi-body and for hydrau- lic systems. The hydraulic system is controlled by a “load sensing” controller.
Beater, Peter, Otter, Martin
core  

Stochastic soil water dynamics of phreatophyte vegetation with dimorphic root systems

open access: yes, 2009
As the direct uptake of deep groundwater by vegetation may be essential in semiarid regions, we incorporated this process in stochastic root zone water balance models.
Vervoort, R.W.   +2 more
core   +1 more source

Efficient and Robust Standing Postures of Quadruped Robots

open access: yesAdvanced Robotics Research, EarlyView.
A calibrated static framework estimates load, optimizes torques, and adapts posture so quadruped robots stand efficiently and robustly under external payloads, achieving up to 50% lower torque demand. Inspired by the natural posture adjustments of animals under external loading, this article presents an optimization‐based framework for minimizing joint
Mohamad Kanaan   +5 more
wiley   +1 more source

Hydraulic limits on tree performance: Transpiration, carbon gain and growth of trees

open access: yes
An overview of the relationship between plant gas exchange, the potential hydraulic gradient, the size of the plant and its hydraulic conductance is presented.
Tyree, Melvin T.
core  

Study of thermal-hydraulic phenomena in hot leg break LOCA of PWR systems

open access: yes, 2011
The present work cope with the execution of two post tests analysis relative to experiments executed in two different Integral test facilities. The aim of the work is to understand if the Thermal-Hydraulic system code utilized, has the capability to ...
MATTEOLI, CAMILLA
core  

Transdisciplinary models of hydraulic drive [PDF]

open access: yes, 2017
An approach to the development of hydraulic drives of mobile equipment based on transdisciplinary models of instruments and control systems is proposed.
Puzanov A. V.
core  

Design and Modeling of a High‐Displacement, Skin‐Integrated Flexible Electromagnetic Actuator for Haptic Interfaces in Virtual Reality

open access: yesAdvanced Robotics Research, EarlyView.
A flexible, skin‐integrated electromagnetic actuator is developed for wearable virtual/augmented reality (VR/AR) haptic systems. A tunable design model enables control over displacement and resonance frequency. The system is validated through a custom VR application with a 6 × 4 actuator array, demonstrating real‐time, spatially targeted tactile ...
Naji Tarabay   +9 more
wiley   +1 more source

Scale models in hydraulic engineering

open access: yes, 1982
principles of modelling, aids to experimental research, reproduction of hydraulic phenomena, design of scale models (rigid bed models, mobile bed models, coastal and estuarine problems, hydraulic structures)
De Vries, M. (author)
core  

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

open access: yesAdvanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

A new hydraulic conductivity model of frozen soil considering the hysteresis effect based on fractal theory

open access: yesGeoderma
The hydraulic conductivity of frozen soil is crucial for predicting water migration and frozen heave. Many models have been proposed to estimate the hydraulic conductivity, which involves factors such as unfrozen water content, specific surface area ...
Feng Ming   +3 more
doaj   +1 more source

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