Results 191 to 200 of about 37,842 (283)

Lubricantes y sistemas de lubricación para el mantenimiento

open access: yes, 2011
Aplicaciones de sistemas de lubricación en empresas para optimizar el mantenimiento.
openaire   +2 more sources

Liposomal Delivery of L‐2‐Hydroxyglutarate for Targeting Epigenetic Dysregulation in Osteoarthritis

open access: yesAdvanced NanoBiomed Research, EarlyView.
Osteoarthritis involves cartilage degeneration, inflammation, and epigenetic dysregulation. A liposomal formulation of the TET1 inhibitor L‐2‐hydroxyglutarate to overcome rapid joint clearance was developed. The formulation showed good physicochemical properties, reduced inflammatory and catabolic gene expression in chondrocytes, and alleviated ...
Denise Murgia   +10 more
wiley   +1 more source

Prevalence of HIV and Associated Risk Factors Among Long Distance Truck Drivers in Inchope, Mozambique, 2012. [PDF]

open access: yesAIDS Behav, 2016
Botão C   +8 more
europepmc   +1 more source

[Doctor, our condom has broken. Do you know why this could be?]. [PDF]

open access: yesAten Primaria, 2003
Leal Hernández M   +3 more
europepmc   +1 more source

Enhanced Rheological and Filtration Performance of Drilling Fluids Using Fe3O4/Saponin/Cu(II) Nanocomposites: Synthesis, Characterization, and Application

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Drilling fluids used in high‐performance well operations often struggle to maintain rheological stability, colloidal dispersion, and filtration control under harsh downhole conditions. This study engineered a multifunctional Fe3O4@Saponin/Cu(II) nanocomposite to address these challenges.
Kassem Al Attabi   +9 more
wiley   +1 more source

Caracterización mediante tribómetro del comportamiento piezoviscoso de un lubricante

open access: yes
El estudio de los contactos lubricados en régimen elastohidrodinámico (EHD) requiere en muchos casos de la correcta caracterización del comportamiento del coeficiente viscosidad-presión α del lubricante a presiones superiores al 1GPa. La definición de α, para su aplicación en cálculos EHD, se encuentra actualmente en discusión dentro de la comunidad ...
Chacón-Tanarro, Enrique   +3 more
openaire   +1 more source

Design of Experiments‐Based Optimization of Recovered Carbon Black–Reinforced Isobutylene–Isoprene Rubber in Comparison With Conventional Carbon Black Systems

open access: yesJournal of Applied Polymer Science, EarlyView.
Optimized potential of rCB via DOE: recovered carbon black from end‐of‐life tires was assessed as a full substitute for conventional carbon black in IIR composites. DOE and response surface methodology optimized rCB loading, plasticizer, and sulfur contents. Hardness showed linear trends, while rupture energy was nonlinear.
Vinícius Guedes Gobbi   +3 more
wiley   +1 more source

Comparative study of the vulnerability profile of young people and adults with reactive HIV tests. [PDF]

open access: yesRev Esc Enferm USP
Bossonario PA   +5 more
europepmc   +1 more source

Twist Engineering of Hybrid 2D van der Waals‐Transition Metal Oxide Membranes

open access: yesAdvanced Physics Research, EarlyView.
The integration of transition metal oxide membranes with 2D van der Waals materials offers exciting opportunities to study new interfacial phenomena. These interactions can create complex moiré patterns that change the materials' properties. Understanding these interactions, influenced by symmetry and distortion, poses significant challenges and ...
Mar Garcia Hernandez   +4 more
wiley   +1 more source

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