Results 111 to 120 of about 718,973 (279)

Advanced Functional Materials for Marine Energy Utilization

open access: yesInterdisciplinary Materials, EarlyView.
Marine renewable energy is an important future clean energy supply. We construct and sort out the material system for marine energy capture and conversion, transmission, storage, and utilization for the first time. ABSTRACT Several features of marine energy, including large reserves, sustainable utilization, environmental friendliness, make it a ...
Qiang Yu   +7 more
wiley   +1 more source

Evaluating the sustainability of mineral water consumption using multi‐scale hydrogeophysics in Caxambu, Brazil

open access: yesNear Surface Geophysics, EarlyView.
Abstract A better understanding of the near‐surface aquifer system of the Caxambu Water Park, located in the Minas Gerais State, Brazil, has been achieved. The study aimed to identify groundwater reservoirs and flow patterns and contribute to the hydrogeological conceptual model using a multi‐scale geophysical approach.
Emanuele F. La Terra   +5 more
wiley   +1 more source

Efficiency Study of an Electro-Hydraulic Excavator

open access: yes, 2018
Published by [Mainz ...
Salomaa, Ville   +3 more
openaire   +3 more sources

ELECTRO-HYDRAULIC (PNEUMATIC) STAGE PROPORTIONAL CONTROL

open access: yesProceedings of the JFPS International Symposium on Fluid Power, 2002
The electrical-mechanical interfaces of servo valves and proportional valves display electromagnetic nonlinearities, such as hysteresis and saturation. In many cases, these nonlinearities have usually unfavorable effects on the performance of the whole control system.
Jian Ruan   +3 more
openaire   +2 more sources

Highly Dynamic Soft Electrohydraulic Origami Actuators for Agile and Multimodal Robotic Locomotion

open access: yesSmartBot, EarlyView.
Most current soft robots still lag far behind their natural counterparts in both agility and speed, mainly attributed to the limited morphing modes and performance of soft actuators. Here, the authors report a new methodology of electrohydraulic origami (EHO) for creating powerful and multimodal soft actuators with large strain, high speed, lightweight,
Wenbo Li   +6 more
wiley   +1 more source

Test 1846A: Challenger MT765C [PDF]

open access: yes, 2009
ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications ...
Nebraska Tractor Test Lab,
core   +1 more source

Evaluation of prestress losses in concrete beams using destructive and non‐destructive methods

open access: yesStructural Concrete, EarlyView.
Abstract Over the past few decades, prestressing techniques have become essential in the construction of key structures, infrastructure, and bridges. The serviceability and safety of prestressed concrete (PC) elements are closely tied to the effectiveness of the prestressing process.
A. N. Consiglio, G. Muciaccia, G. Rosati
wiley   +1 more source

Modal Space Feedforward Control for Electro-Hydraulic Parallel Mechanism

open access: yesIEEE Access, 2019
As a parallel mechanism with six-degree-of-freedom, an electro-hydraulic shaking table is endowed with strong coupling characteristics among different degree-of-freedoms. When the electro-hydraulic shaking table moves to one direction, there will be some
Gang Shen   +4 more
doaj   +1 more source

Independent Orbiter Assessment (IOA): Analysis of the rudder/speed brake subsystem [PDF]

open access: yes
The results of the Independent Orbiter Assessment (IOA) of the Failure Modes and Effects Analysis (FMEA) and Critical Items List (CIL) are presented. The IOA approach features a top-down analysis of the hardware to determine failure modes, criticality ...
Riccio, J. R., Wilson, R. E.
core   +1 more source

Adaptive-smith predictor for controlling an automotive electronic throttle over network [PDF]

open access: yes, 2018
The paper presents a control strategy for an automotive electronic throttle, a device used to regulate the power produced by spark-ignition engines.
Acho Zuppa, Leonardo   +3 more
core   +3 more sources

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