Results 21 to 30 of about 2,568,684 (266)

Defects and defect engineering in Soft Matter

open access: yesSoft Matter, 2020
Defect engineering is a success story in crystalline hard matter; this review summarizes its parallels in amorphous soft matter.
Amir Jangizehi   +4 more
openaire   +4 more sources

Using Deep Learning to Detect Defects in Manufacturing: A Comprehensive Survey and Current Challenges

open access: yesMaterials, 2020
The detection of product defects is essential in quality control in manufacturing. This study surveys stateoftheart deep-learning methods in defect detection. First, we classify the defects of products, such as electronic components, pipes, welded parts,
Jing Yang   +5 more
semanticscholar   +1 more source

Defects of algebraic function fields, completion defects and defect quotients [PDF]

open access: yes, 2014
The {\it defect} (also called {\it ramification deficiency}) of valued field extensions is a major stumbling block in deep open problems of valuation theory in positive characteristic. For a detailed analysis, we define and investigate two weaker notions of defect: the {\it completion defect} and the {\it defect quotient}.
Kuhlmann, Franz-Viktor, Naseem, Asim
openaire   +2 more sources

National population-based estimates for major birth defects, 2010–2014

open access: yesBirth Defects Research, 2019
Background: Using the National Birth Defects Prevention Network (NBDPN) annual data report, U.S. national prevalence estimates for major birth defects are developed based on birth cohort 2010–2014. Methods: Data from 39 U.S.
Cara T. Mai   +10 more
semanticscholar   +1 more source

Reducing Detrimental Defects for High‐Performance Metal Halide Perovskite Solar Cells

open access: yesAngewandte Chemie, 2020
In several photovoltaic (PV) technologies, the presence of electronic defects within the semiconductor band gap limit the efficiency, reproducibility, as well as lifetime.
L. Ono, S. Liu, Y. Qi
semanticscholar   +1 more source

Semilocal defects [PDF]

open access: yesPhysical Review D, 1992
I analyze the interplay of gauge and global symmetries in the theory of topological defects. In a two-dimensional model in which both gauge symmetries and {\it exact} global symmetries are spontaneously broken, stable vortices may fail to exist even though magnetic flux is topologically conserved.
openaire   +4 more sources

Quality Control to Reduce Appearance Defects at PT. Musical Instrument

open access: yesInternational Journal of Innovative Science and Research Technology
This research was conducted at PT. Musical Instruments that aim to analyze quality control to reduce appearance defects in piano products on the assembling production line.
Dikka Safriyanto   +2 more
semanticscholar   +1 more source

Effects of defects on mechanical properties in metal additive manufacturing: A review focusing on X-ray tomography insights

open access: yes, 2020
X-ray tomography has emerged as a uniquely powerful and non-destructive tool to analyze defects in additive manufacturing. Defects include unintended porosity, rough surfaces and deviations from design, which can have different root causes and can vary ...
A. du Plessis   +2 more
semanticscholar   +1 more source

Defect branes [PDF]

open access: yesNuclear Physics B, 2012
We discuss some general properties of "defect branes", i.e. branes of co-dimension two, in (toroidally compactified) IIA/IIB string theory. In particular, we give a full classification of the supersymmetric defect branes in dimensions 2 < D < 11 as well as their higher-dimensionalstring and M-theory origin as branes and a set of "generalized ...
Bergshoeff, Eric A.   +2 more
openaire   +4 more sources

Probing the nature of defects in graphene by Raman spectroscopy. [PDF]

open access: yesNano letters (Print), 2012
Raman spectroscopy is able to probe disorder in graphene through defect-activated peaks. It is of great interest to link these features to the nature of disorder.
A. Eckmann   +6 more
semanticscholar   +1 more source

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