Results 21 to 30 of about 1,429,445 (306)

A novel n-type semiconducting biomaterial

open access: yesScientific Reports, 2022
There has been no research conducted thus far on the semiconducting behaviour of biomaterials. In this study, we present an n-type semiconducting biomaterial composed of amorphous kenaf cellulose fibre (AKCF) paper with a voltage-controlled N-type ...
Mikio Fukuhara   +6 more
doaj   +1 more source

Development of Highly Sensitive Strain Sensor Using Area-Arrayed Graphene Nanoribbons

open access: yesNanomaterials, 2021
In this study, a basic design of area-arrayed graphene nanoribbon (GNR) strain sensors was proposed to realize the next generation of strain sensors. To fabricate the area-arrayed GNRs, a top-down approach was employed, in which GNRs were cut out from a ...
Ken Suzuki   +3 more
doaj   +1 more source

Fracture Resistance of Zirconia Oral Implants In Vitro: A Systematic Review and Meta-Analysis [PDF]

open access: yes, 2020
Various protocols are available to preclinically assess the fracture resistance of zirconia oral implants. The objective of the present review was to determine the impact of different treatments (dynamic loading, hydrothermal aging) and implant features (
Bethke, Annalena   +6 more
core   +1 more source

The effect of aquatic exercise on bone mineral density in older adults. A systematic review and meta-analysis

open access: yesFrontiers in Physiology, 2023
Introduction: Aquatic or water-based exercise is a very popular type of exercise in particular for people with physical limitations, joint problems and fear of falling.
Eileen Schinzel   +26 more
doaj   +1 more source

Fracture Propagation Driven by Fluid Outflow from a Low-permeability Aquifer [PDF]

open access: yes, 2013
Deep saline aquifers are promising geological reservoirs for CO2 sequestration if they do not leak. The absence of leakage is provided by the caprock integrity.
DT Snow   +17 more
core   +1 more source

Reverse Ballistic Impact Studies of Thin Plate Perforation

open access: yesEngineering Transactions, 2014
Full-scale ballistic experiments using tungsten rods and rolled homogeneous armour (RHA) steel plates are expensive to perform. For this reason, a study has been performed into the possibility of using less expensive, more easily available metals in ...
L. C. FORDE   +4 more
doaj   +1 more source

Application of Far Cortical Locking Technology in Periprosthetic Femoral Fracture Fixation: A Biomechanical Study [PDF]

open access: yes, 2016
© 2016 Elsevier Inc. Background Lack of fracture movement could be a potential cause of periprosthetic femoral fracture (PFF) fixation failures. This study aimed to test whether the use of distal far cortical locking screws reduces the overall stiffness ...
Fagan, Michael J.   +5 more
core   +2 more sources

Impact and indenting damage of CVD-produced ZnS and ZnSe ceramics

open access: yesMaterials Research Express, 2020
Time series of acoustic emission pulses were excited in ductile ZnS and ZnSe ceramics either by a falling weight or by indenting the Vickers pyramid. Energy distributions in emitted acoustical emission pulses were found to be random (Poisson-like) in the
Alexandre Chmel   +3 more
doaj   +1 more source

Stress Intensity Factor Solutions for Eccentric Annular External Cracks in Notched Round Bars under Tensile Loading

open access: yesMetals, 2023
In this paper, stress intensity factor (SIF) solutions of eccentric annular external cracks in elliptical notched round bars under tension loading have been obtained from 3D finite element analysis, along with their relation to the energy release rate ...
Jesús Toribio   +3 more
doaj   +1 more source

Vertebral Fractures Predict Subsequent Fractures

open access: yesOsteoporosis International, 1999
This population-based study documents an increase in most types of fractures following the occurrence of a clinically recognized vertebral fracture among 820 Rochester, Minnesota, residents. During 4349 person-years of follow-up, 896 new fractures were observed.
Melton, L   +4 more
openaire   +2 more sources

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