Soil load support capacity increases with time without soil mobilization as a result of age-hardening phenomenon.
bitstream/item/199655/1/aMoraes-soil-load.pdf
Theoretical and Experimental Study on Flow Characteristics of a Diaphragm Pump for Urea-SCR Systems
Published in International Journal of Automotive Technology
Urea selective catalytic reduction (SCR) is the primary technology used to reduce the nitrogen oxides (NOx) of diesel engine exhaust. To meet the requirements of an SCR system, a novel type of miniature diaphragm pump was designed. Based on the theory of large deflection of annular plates, the equilibrium equations of a diaphragm with a rigid inclu...
Quantitative assessment of distal radioulnar joint stability with pressure-monitor ultrasonography
Published in Journal of Orthopaedic Surgery and Research
BackgroundDiagnosing distal radioulnar joint (DRUJ) instability remains a challenge as it relies on physical examination. To quantitatively assess DRUJ stability, a pressure-monitor ultrasound system was developed. The objective of this study was to evaluate the force-displacement relationship of DRUJ in normal subjects.MethodsNine wrists of 9 asym...
An experimental study of the CO2 hydrates for possible applications in energy engineering
Currently, humanity is addressing the issue of global warming and environmental pollution. Partially, one could try to solve this problem by storing the emission gases (CH4, CO2) in the form of hydrates. The first hydrate was created by Joseph Priestley in 1778, which passed SO2 through water, and the term Hydrate was introduced in 1811 by the Engl...
High-Pressure Elastic Anomalies of PbHf0.975Sn0.025O3 Single Crystals Studied by Using Brillouin Spectroscopy
Published in Journal of the Korean Physical Society
High-pressure Brillouin spectroscopy was applied to the PbHf0.975Sn0.025O3 single crystal to obtain the pressure dependences of its acoustic properties. The Brillouin frequency shift of the longitudinal acoustic mode showed two anomalies, one at ∼2.5 GPa and the other at ∼9 GPa, indicating two pressure-induced phase transitions consistent with rece...
Elastic, piezoelectric and thermal properties of zinc-blende AlN under pressure
Published in Theoretical Chemistry Accounts
The present work aims to investigate the elastic constants and their related mechanical parameters, acoustic wave speeds, piezoelectric coefficients and thermal properties of cubic zinc-blende AlN and their pressure dependence up to 5 GPa. The calculations are performed using the pseudopotential plane-wave method within the frame work of the densit...
Optimization of SPS processing parameters on the density and hardness properties of graphene reinforced polylactic acid ...
Published in The International Journal of Advanced Manufacturing Technology
This article examines the influence of process parameters of Spark plasma sintering (SPS) technique on the densification and hardness properties of graphene (GNP) reinforced polylactic acid (PLA) nanocomposite. The numerical experiment was designed in accordance with response surface methodology (RSM) using central composite design (CCD). Five perc...
Microstructural evolution and mechanical properties of pure titanium powders processed by spark plasma sintering
In this study the effect of sintering pressure on the densification, microstructure and mechanical properties of commercial pure titanium (CP-Ti) powders with varying chemistry was investigated. The sintering was performed at a constant dwell time of 3 min at varying temperature and pressure in the range of 550–900 °C and 25-75 MPa in vacu...
Advanced Technology Lift Assist Systems - ATLAS
EMS personal work hard every day to save lives. A big part of the job is helping to lift people who are notinjured but have fallen and can’t get up by themselves. There are currently no procedures or tools that areconsistently used by EMS in this specific situation. This leads to the response often being ad hoc costing more time, resources, and man...
Microstructural evolution and mechanical properties of pure titanium powders processed by spark plasma sintering
In this study the effect of sintering pressure on the densification, microstructure and mechanical properties of commercial pure titanium (CP-Ti) powders with varying chemistry was investigated. The sintering was performed at a constant dwell time of 3 min at varying temperature and pressure in the range of 550–900 °C and 25-75 MPa in vacu...
