Results 131 to 140 of about 1,384,354 (349)

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

Bond strength comparison of color-change adhesives for orthodontic bonding using a self-etching primer

open access: yesClinical, Cosmetic and Investigational Dentistry, 2011
Sara Ekhlassi, Jeryl D English, Joe C Ontiveros, John M Powers, Harry I Bussa, Gary N Frey, Clark D Colville, Randy K EllisHouston Department of Orthodontics, The University of Texas Dental Branch, Houston, TX, USABackground: The purpose of this study ...
Frey GN   +7 more
doaj  

The \chi Factor: Determining the Strength of Activity in Low Mass Dwarfs

open access: yes, 2004
We describe a new, distance-independent method for calculating the magnetic activity strength in low mass dwarfs, L_{H\alpha}/L_{bol}. Using a well-observed sample of nearby stars and cool standards spanning spectral type M0.5 to L0, we compute ``\chi'',
Andrew A. West   +3 more
core   +2 more sources

Understanding the Effect of Resistance Temperature Detector Temperature Controllers on Microstructural Alignment in Magnetic Freeze Casting

open access: yesAdvanced Engineering Materials, EarlyView.
The effect of temperature controllers that are commonly used in freeze‐casting is investigated in this work. Temperature controllers are observed to generate a voltage in the slurry. Microstructural alignment and ultimate compressive strength data show this voltage to interfere with the ability to align the microstructure using magnetic fields ...
Maddie A. Schmitz, Steven E. Naleway
wiley   +1 more source

Comparison of optical properties and bond strength of new CAD/CAM ceramic materials

open access: yesMaterials Research Express
Objective . To compare the shear bond strength values of current CAD/CAM materials and to evaluate the color changes resulting from immersion in coloring solutions. Material and Methods .
Necla Demir   +2 more
doaj   +1 more source

Effect of Thermal Aging on Color Stability and Mechanical Properties of High-Density CAD/CAM Polymers Utilized for Provisional Restorations

open access: yesJournal of Functional Biomaterials
Background: This study evaluated and compared the effects of thermal aging on the color stability and mechanical properties of CAD/CAM polymers utilized for provisional restorations.
Rasha Alharthi   +6 more
doaj   +1 more source

Masses of vector bosons in two-color dense QCD based on the hidden local symmetry

open access: yes, 2010
We construct a low energy effective Lagrangian for the two-color QCD including the "vector" bosons (mesons with J^P=1^- and diquark baryons with J^P=1^+) in addition to the pseudo Nambu-Goldstone bosons with a degenerate mass M_\pi (mesons with J^P=0 ...
Harada, Masayasu   +2 more
core   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar   +6 more
wiley   +1 more source

Development and Preliminary In Vivo Study of 3D‐Printed Bioactive Glass Scaffolds with Trabecular Architecture

open access: yesAdvanced Engineering Materials, EarlyView.
This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov   +8 more
wiley   +1 more source

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