Results 71 to 80 of about 919,931 (328)

A Method for Testing Abrasive Wear of Aesthetic Prosthetic Materials [PDF]

, 2005
Trenje i trošenje zbivaju se na dodiru tvarnih površina koje su više ili manje hrapave. Tijekom abrazijskoga trošenja nastaje istiskivanje materijala prouzročenog tvrdim česticama koje prave pritisak prema površini, ili kližu duž nje (trotočkasto ...
Ivana Čvrljak-Tomić, Ketij Mehulić, Tomislav Badel, Zdravko Schauperl   +3 more
core  

Survival to amputation in pre-antibiotic era: a case study from a Longobard necropolis (6th-8th centuries AD) [PDF]

, 2018
The Longobard necropolis of Povegliano Veronese dates from the 6th to the 8th centuries AD. Among the 164 tombs excavated, the skeleton of an older male shows a well-healed amputated right forearm.
Boggioni, Marco, Di Vincenzo, Fabio, Giostra, Caterina, Manzi, Giorgio, Massani, Danilo, Micarelli, Ileana, Paine, Robert, Papini, Andrea, Profico, Antonio, Tafuri, Mary Anne   +9 more
core   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Oxide tribolayer effects on fretting wear of steel under variable displacement amplitude

Results in Engineering
Most of the studies in the literature dealing with fretting have focused on wear mechanisms without considering the formation of oxide layers, whose nature can vary depending on the displacement amplitude and the material pairing.
Roderick Jacques, Abdeljalil Jourani, Salima Bouvier, Yan-Ming Chen   +3 more
doaj   +1 more source

Influence of Surface Finish on the Tribological Performance of AlTiBN Coatings Deposited on Forming Tools

Advanced Engineering Materials, EarlyView.
Aluminum and nitride coatings are used in industry because they are hard, resist wear, and protect against oxidation. Adding boron can improve friction behavior and other properties. This study tests coatings on surfaces with different finishes. Results show smoother surfaces perform better, while rough ones wear faster, although coatings can reduce ...
Adrián Claver, Iker Alfonso, Eneko Barba, Javier León, José Antonio García, Iñaki Zalakain, Iván Fernández Martínez, Arley García‐Carrero, Christian Almeyda, Daniel Salcedo   +9 more
wiley   +1 more source

The Effect of Soft Nanoparticle Size and Concentration on Wear Behavior in Mixed Lubrication Conditions

Tribology Online
This research study investigates how incorporating soft nanoparticles affect the wear behavior and the characteristics of the materials in three-body mixed lubrication conditions.
Yunn-Lin Hwang, Adhitya, Jeng-Haur Horng
doaj   +1 more source

Fretting wear of Ti(CxNy) PVD coatings under variable environmental conditions [PDF]

, 2006
Fretting wear as a specific type of degradation is defined as an oscillatory motion at small amplitude between two nominally stationary solid bodies in mutual contact.
Blau P. J., Cullity B. D., Godfrey D., Mindlin R. D., Ohring M.   +4 more
core   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

Advanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan, Mohammad Mehrali, Jaka Tušek, Shiva Mohajerani, Xiebin Wang, Dermot Brabazon, Mohammad Elahinia, Mehrshad Mehrpouya   +7 more
wiley   +1 more source

EPIC: Examining Patch Impedance Characteristics [PDF]

, 2019
In the United States, approximately one in 4 adults have at least one chronic illness, making up approximately 84% of US Healthcare Spending. Unfortunately, 50% of patients with chronic diseases do not take their medication properly and as such spend ...
Buck, Shane, Gopinath, Jyotsna, Markfield, Kyle   +2 more
core   +1 more source