Results 121 to 130 of about 676,371 (320)

Addition and Subtraction of Ideals

Journal of Algebra, 1999
Let \(A\) be a Noetherian ring, \(\widetilde{I}\) and \(I\) be comaximal ideals of \(A\), and \(P\) be a projective \(A\)-module. ``Addition'' refers to being given a surjection \(P\to \widetilde{I}\) and producing a surjection \(P\to \widetilde{I}\cap I\).
openaire   +3 more sources

Background Subtraction in Real Applications: Challenges, Current Models and Future Directions [PDF]

Computer Science Review, 2019
T. Bouwmans, B. G. García
semanticscholar   +1 more source

Robocasting of a Water‐Based Biopolymer/WO3 Nanopowder Paste as a Precursor to Tungsten Carbide Lattices

Advanced Engineering Materials, EarlyView.
This study demonstrates a novel, additive manufacturing approach to produce complex, porous tungsten carbide structures using water‐based direct ink writing/robocasting. Leveraging a modified commercial printer and heat treatment, the process yields lightweight, electrically conductive 3D architectures capable of supporting a mechanical load.
James Bentley Bevis, Manasi Shah, Sanketh Gombi, Rodrigo Martinez‐Duarte   +3 more
wiley   +1 more source

Tribology of ZrC Coatings and Spherical Tips Acquired with Extraordinarily Stiff, Metal Atomic Force Microscopy Probes

Advanced Engineering Materials, EarlyView.
In this research, ZrC coatings are evaluated against various counterprobes at the microscale using novel super‐stiff atomic force microscopy cantilevers. The chemical composition of the coating is shown to be an important factor influencing coating hardness and Young's modulus, while surface roughness, counterprobe hardness, and surface energy are the ...
Piotr Jenczyk, Marcin Michałowski, Bogdan Warcholiński, Michał Milczarek, Adam Gilewicz   +4 more
wiley   +1 more source

⁶⁷GA-Subtraction Scanning in Hodgkin's Disease and Lymphomas [PDF]

, 1978
H. Krolikiewicz, Yosh Maruyama, F. H. DeLand, Robert M. Beihn, T. Hafner, EE Kim   +5 more
openalex   +1 more source

Quality Enhancement of Laser Powder‐Bed Fusion Parts by Acoustically Assisted Additive Manufacturing by Laser Powder‐Bed Fusion and its Application to Lattice Structures

Advanced Engineering Materials, EarlyView.
Additive manufacturing technologies like laser powder‐bed fusion offer great design freedom and individualization of products down to a batch size of one. However, parts fabricated with this technology suffer from poor quality. Acoustic assistance during the build process can minimize these drawbacks.
Oliver Maurer, Dirk Bähre
wiley   +1 more source

Sequential QRS vector subtractions in acute myocardial infarction in humans. Time course and relationship to serial changes in serum CK-MB concentration. [PDF]

, 1981
John P. Wikswo, S. C. Gundersen, William A. Murphy, Albert K. Dawson, Raphael F. Smith   +4 more
openalex   +1 more source

Deep Neural Network Concepts for Background Subtraction: A Systematic Review and Comparative Evaluation [PDF]

Neural Networks, 2018
T. Bouwmans, S. Javed, M. Sultana, Soon Ki Jung   +3 more
semanticscholar   +1 more source

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

A comparison of conventional contrast ventriculography and digital subtraction ventriculography [PDF]

, 1983
R. Félix, H. Eichstädt, H. Kempter, A. Kewitz, D. Banzer, H Schmutzler, P. Marhoff   +6 more
openalex   +1 more source