Results 161 to 170 of about 1,811,411 (338)

Reiniciando Atuária na FEA/USP

open access: yesRevista Contabilidade & Finanças, 2006
Iran Siqueira Lima
doaj   +1 more source

Crude oil viscosity reduction using TiO2, MgO, and Al2O3 nanoparticles

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Summary of the laboratory procedures, viscosity test conditions, obtained results, and viscosity trends based on the investigated parameters. Abstract The viscosity of crude oil plays a crucial role in enhancing oil recovery and flow efficiency within well columns and pipelines.
Iman Nowrouzi   +2 more
wiley   +1 more source

A straightforward model for determining gas hydrate phase equilibrium conditions and enthalpy of hydrate dissociation for natural gas components

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Modelling of gas hydrate dissociation conditions. Abstract A significant challenge in natural gas transportation through pipelines is the occurrence of gas hydrate formation. An adequate understanding of the phase equilibrium conditions of gas hydrate is essential for implementing an effective gas hydrate prevention plan.
Ali Rasoolzadeh   +3 more
wiley   +1 more source

Classifying the Natural Tooth Color Spaces of Different Ethnic Groups

open access: yesColor Research &Application, EarlyView.
ABSTRACT This study aimed to classify the natural tooth color spaces of various ethnic groups and assess the coverage error (CE) of the Vita 3D‐Master shade guide. A sample of 490 volunteers from five ethnic backgrounds participated, with inclusion criteria set for adults aged 20– to 45 with healthy, correctly aligned natural teeth free of restorations.
Omnia Saleh   +5 more
wiley   +1 more source

Family's socioeconomic and demographic factors on elements of children's dental and oral health: A scoping review

open access: yesClinical and Experimental Dental Research, EarlyView.
Abstract Background Family plays a significant role in children's dental and oral health (DOH) elements, such as children's DOH knowledge and practice, the development of children's dental fear and anxiety (DFA), children's dental visits, and children's DOH status.
Wisnu Fadila   +5 more
wiley   +1 more source

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