Results 91 to 100 of about 11,021 (288)

A proximodistal gradient in bone structure and mechanics in the wings of Seba's short‐tailed bat, Carollia perspicillata

open access: yesThe Anatomical Record, EarlyView.
Abstract Bats possess the remarkable ability to fly, and with this, distinctive wing bone properties. We investigated the structural, mechanical, and compositional properties of the humerus, radius, metacarpals, and proximal and middle phalanges of Carollia perspicillata, an approximately 15 g fruit‐eating bat native to the Neotropics.
Xiaoxiang Ma   +4 more
wiley   +1 more source

Choice and diversity in governance in the English alternative provision sector: Implications for educational equity

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Despite the continued global prevalence of discourses of educational inclusion, young people across local, national and international contexts continue to be educated outside of mainstream schools. In England, a diverse market of providers—known as alternative provision (AP)—cater for many of these young people.
Jodie Pennacchia   +3 more
wiley   +1 more source

The Accuracy of Shore Hardness Scale Based on the Conversion from Vickers Hardness

open access: yesTransactions of the Japan Society of Mechanical Engineers, 1963
Shore hardness testers are calibrated against five standard blocks of different hardness, the value of which is determined by converting their Vickers hardness into Shore hardness in accordance with a prescribed formula. The accuracy of the Shore hardness scale thus determined is investigated in two ways.
Kazuya Motoda, Kozo Iizuka
openaire   +2 more sources

Restoration of human tooth enamel

open access: yesBMEMat, EarlyView.
Human tooth enamel has remarkable properties but lacks self‐repair ability. Existing restorative materials cannot fully replicate enamel's microstructure and function, resulting in low restorative efficiency. This review summarizes the formation process and characteristics of enamel, and current restorative materials and future research directions are ...
Hanlin Liu   +10 more
wiley   +1 more source

STUDIES ON VICKERS HARDNESS AND THE ELASTICITY MODULUS OF MATERIALS FOR DENTAL RESTORATION

open access: yesRomanian Journal of Oral Rehabilitation, 2018
The aim of this study was to evaluate the Vickers hardness (HV), indentation and Young`s modulus to 4 materials of coronal restoration. Materials and methods Six samples of 5mm in diameter and 6 inches were made of the following materials: Filtek Z250 ...
Cristina Angela Ghiorghe   +7 more
doaj  

A Novel Strategy for Preparing High‐Entropy Ceramics Through Full Glass Crystallization

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study focuses on an innovative strategy for preparing high‐entropy ceramics applicable in extreme environmental protection and related fields. The high‐entropy (Eu0.2Gd0.2Y0.2Yb0.2Lu0.2)3Al5O12 samples prepared by the low‐temperature glass crystallization method exhibit a low thermal conductivity (3.58 W m−1 K−1), high thermal expansion (10.85 ...
Zhibiao Ma   +9 more
wiley   +1 more source

Excellent Thermoelectric and Mechanical Properties of Ce‐Doped Mg3(Sb, Bi)2‐Based Materials

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
In this work, an ultralow lattice thermal conductivity кL ~ 0.51 W m−1 K−1 and excellent mechanical properties including Vickers hardness of ~1012 MPa and average compressive strength of ~531 MPa were achieved in Ce‐doped Mg3Sb2‐based alloys. The emerging n‐type Mg3(Sb, Bi)2‐based materials have attracted considerable attention for their excellent ...
Lijun Zhai   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy