Results 11 to 20 of about 303,157 (244)

Pseudo-two-girdles c-axis fabric patterns in a quartz-feldspar mylonite (Costabona granodiorite, Canigo massif) [PDF]

open access: yes, 2012
An example of the relationship that exist between the preferred crystaliografic orientation of quartz grains and the attitude of the mylonite foliation of quartz-feldspar mylonites is described. These rocks are the result of the inhomogeneous deformation
Casas Tuset, Josep Maria
core   +6 more sources

The Quartz Crystal Microbalance as a Microviscometer for Improved Rehabilitation Therapy of Dysphagic Patients. [PDF]

open access: yes, 2005
The viscosity of non-solid foods, and the stability of their viscosity over time, temperature change and shearing is critical in managing dysphagia.
Dewar, R. J., Joyce, Malcolm J.
core   +5 more sources

Preliminary results for the extraction and measurement of cosmogenic in situ C-14 from quartz [PDF]

open access: yes, 2004
Radiocarbon is produced within minerals at the earth's surface (in situ production) by a number of spallation reactions. Its relatively short half-life of 5730 yr provides us with a unique cosmogenic nuclide tool for the measurement of rapid erosion ...
Anderson, R.   +4 more
core   +5 more sources

Modeling and Control Design Based on Petri Nets Tool for a Serial Three-Phase Five-Level Multicellular Inverter Used as a Shunt Active Power Filter

open access: yesEnergies, 2021
In this work, we represent a shunt active power filter (SAPF) based on a serial three-phase flying capacitor multilevel inverter (FCMI) controlled by a Petri Nets representation (PNs). This structure is chosen for its significant performances.
Sana Othman   +4 more
doaj   +1 more source

Security Threats in Intelligent Transportation Systems and Their Risk Levels

open access: yesRisks, 2022
Intelligent Transport Systems (ITSs) are part of road transportation sector evolution and constitute one of the main steps towards vehicle automation.
Besma Zeddini   +2 more
doaj   +1 more source

Integrated Design Methodology of Automated Guided Vehicles Based on Swarm Robotics

open access: yesApplied Sciences, 2021
In recent years, collaborative robots have become one of the main drivers of Industry 4.0. Compared to industrial robots, automated guided vehicles (AGVs) are more productive, flexible, versatile, and safer.
Khalil Aloui   +4 more
doaj   +1 more source

Note on the importance of hydrocarbon fill for reservoir quality prediction in sandstones [PDF]

open access: yes, 2002
Oil emplacement retarded the rate of quartz cementation in the Brae Formation deep-water sandstone reservoirs of the Miller and Kingfisher fields (United Kingdom North Sea), thus preserving porosity despite the rocks' being buried to depths of 4 km and ...
Fallick, A.E.   +3 more
core   +4 more sources

Friction factor from velocity profiles in smooth turbulent channel flows [PDF]

open access: yesE3S Web of Conferences, 2022
Fluid dynamics plays an important role in many Renewable energies studies, i.e. wind and tidal turbines, wave energy geothermal and solar power, …). Friction factor f is an important parameter for the determination of pressure drop in different processes
Payet-Taille Hélène   +2 more
doaj   +1 more source

ST Quartz Acoustic Wave Sensors with Sectional Guiding Layers [PDF]

open access: yes, 2008
We report the effect of removing a section of guiding layer from the propagation paths of ST-quartz Love wave sensors; this offers the ease of fabrication of a polymer guiding layer whilst retaining the native surface of the quartz which may then be used
Michael I. Newton   +9 more
core   +1 more source

QHAR: Q-Holonic-Based ARchitecture for Self-Configuration of Cyber–Physical Production Systems

open access: yesApplied Sciences, 2021
Production systems must be able to adapt to increasingly frequent internal and external changes. Cyber-Physical Production Systems (CPPS), thanks to their potential capacity for self-reconfiguration, can cope with this need for adaptation.
Douha Macherki   +5 more
doaj   +1 more source

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