Results 51 to 60 of about 14,688 (266)

A Rare Case of Twinning Involving Primary Maxillary Lateral Incisor with Review of Literature [PDF]

Journal of Clinical and Diagnostic Research, 2017
Twinning is referred to the development of two separate teeth that arose from the complete separation of one tooth bud. To the best of our knowledge very few cases of twinning in primary or permanent dentition have been previously reported.
Santosh Hunasgi, Anila Koneru, Vardendra Manvikar, M Vanishree, Rudraraju Amrutha   +4 more
doaj   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Strong grain-size effect on deformation twinning of an Al0.1CoCrFeNi high-entropy alloy

Materials Research Letters, 2017
An Al0.1CoCrFeNi high-entropy alloy (HEA) with a face-centered cubic structure in the as-cast and the recrystallized states is investigated. The mean grain size of the as-cast HEA is 14 times larger than that of the recrystallized HEA.
S. W. Wu, G. Wang, J. Yi, Y. D. Jia, I. Hussain, Q. J. Zhai, P. K. Liaw   +6 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Identifying and analysing the differences between flooding and waterlogging in urban areas

Scientific Reports
There is a significant difference between the measures taken by urban flooding control department for flooding and waterlogging in urban areas.
Jinjun Zhou, Wei Du, Jiahong Liu, Yali Pang, Jia Wang, Mengqi Kong, Hao Wang   +6 more
doaj   +1 more source

Understanding the twinning-detwinning mechanism in the Swift effect for Mg–3Al–1Zn bar during free-end torsion

Journal of Magnesium and Alloys
The Swift effect, namely the axial response accompanying torsion, is strongly affected by twinning mechanisms in magnesium alloys, yet detwinning occurs during torsion, and its quantitative connection to the axial response remains insufficiently ...
Shudong Yang, Xiaoqian Guo, Zhiang Li, Chao Ma, Yunchang Xin, Peidong Wu   +5 more
doaj   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Twinned silicon and germanium nanocrystals: Formation, stability and quantum confinement

AIP Advances, 2015
Although twins are often observed in Si/Ge nanocrystals (NCs), little theoretical investigation has been carried out to understand this type of important planar defects in Si/Ge NCs.
Ting Yu, Xiaodong Pi, Zhenyi Ni, Hui Zhang, Deren Yang   +4 more
doaj   +1 more source