scholarly journals A “Living” Microvascular Stamp: “Living” Microvascular Stamp for Patterning of Functional Neovessels; Orchestrated Control of Matrix Property and Geometry (Adv. Mater. 1/2012)

2011 ◽  
Vol 24 (1) ◽  
pp. 1-1 ◽  
Author(s):  
Jae Hyun Jeong ◽  
Vincent Chan ◽  
Chaenyung Cha ◽  
Pinar Zorlutuna ◽  
Casey Dyck ◽  
...  
Keyword(s):  
Matrix Property

Loading Rate Effect on Translaminar Fracture Toughness of Hybrid Composite Laminate

2000 ◽  
Author(s):  
Paul Moy ◽  
Jerome Tzeng
Keyword(s):  
Fracture Toughness ◽  
Composite Laminates ◽  
Glass Matrix ◽  
Small Volume ◽  
Loading Rate ◽  
Volume Fraction ◽  
Rate Effect ◽  
The Matrix ◽  
Small Volume Fraction ◽  
Matrix Property

Abstract Fracture toughness properties of composite laminates were evaluated at a loading rate commonly observed in ordinance applications. The laminates are composed of IM7 graphite and a small volume fraction of S2 glass plies to form a cross-ply laminate. Fracture toughness appears to be very rate sensitive if the crack growth perpendicular to the plane dominated by glass/matrix property. Experimental data shows a 30–40% increase of fracture toughness for various layup as the loading rate was increase by 1000 times. The specimens examined under microscopic indicates the strengthening might due to different failure mechanism in the matrix. In addition, there is no visible rate effect if the crack propagation is perpendicular to the graphite dominant plane.

scholarly journals Algebraic multigrid for the finite pointset method

2020 ◽  
Vol 23 (1-4) ◽  
Author(s):  
Bram Metsch ◽  
Fabian Nick ◽  
Jörg Kuhnert
Keyword(s):  
Differential Operators ◽  
Stokes Equations ◽  
Algebraic Multigrid ◽  
Navier Stokes ◽  
Symmetric Matrices ◽  
Point System ◽  
Navier Stokes Equations ◽  
Saddle Point System ◽  
Matrix Property ◽  
Velocity Pressure

AbstractWe investigate algebraic multigrid (AMG) methods for the linear systems arising from the discretization of Navier–Stokes equations via the finite pointset method. In the segregated approach, three pressure systems and one velocity system need to be solved. In the coupled approach, one of the pressure systems is coupled with the velocity system, leading to a coupled velocity-pressure saddle point system. The discretization of the differential operators used in FPM leads to non-symmetric matrices that do not have the M-matrix property. Even though the theoretical framework for many AMG methods requires these properties, our AMG methods can be successfully applied to these matrices and show a robust and scalable convergence when compared to a BiCGStab(2) solver.

Some matrices with Padovan Q-matrix property

2017 ◽  
Author(s):  
Supunnee Sompong ◽  
Natthaphat Wora-Ngon ◽  
Areeya Piranan ◽  
Natnapa Wongkaentow
Keyword(s):  
Matrix Property ◽  
Q Matrix

Matrix Property of Vibrational Overlap Integrals

Nature ◽  
1968 ◽  
Vol 219 (5150) ◽  
pp. 151-152 ◽  
Author(s):  
R. W. NICHOLLS
Keyword(s):  
Overlap Integrals ◽  
Matrix Property

scholarly journals Run length limited error control codes construction based on one control matrix property

2017 ◽  
Vol 68 (4) ◽  
pp. 322-324
Author(s):  
Peter Farkaš ◽  
Frank Schindler
Keyword(s):  
Error Control ◽  
Specific Property ◽  
Block Codes ◽  
Low Density ◽  
Parity Check ◽  
Simple Method ◽  
Error Control Codes ◽  
Run Length ◽  
Low Density Parity Check ◽  
Matrix Property

AbstractIn this manuscript a simple method is presented for constructing run length limited error control codes from linear binary block codes. The run length limited properties are obtained via addition of a carefully chosen fixed binary vector - a modifier to all codewords without introducing any additional redundancy. Modifier selection is based on a specific property, which can be found in some of the linear binary block codes control matrices. Similar known methods are based on properties of generator matrices. However some codes are specified via control matrices, for example low density parity check codes. The method proposed in this letter could be applied to some of them directly. This is illustrated in this manuscript using example in which a run length limited low density parity check code is obtained from Gallager code.

scholarly journals Multi-agent avoidance control using an M-matrix property

2005 ◽  
Vol 12 ◽  
Author(s):  
Dusan Stipanovic ◽  
Sriram Shankaran ◽  
Claire Tomlin
Keyword(s):  
Avoidance Control ◽  
Multi Agent ◽  
Matrix Property

Dry vs. wet testing: quasi-static tensile experiment setup for polymer based biomaterials

2021 ◽  
Vol 7 (2) ◽  
pp. 637-639
Author(s):  
Daniela Arbeiter ◽  
Stefan Oschatz ◽  
Kerstin Lebahn ◽  
Sabine Illner ◽  
Niels Grabow
Keyword(s):  
Biofilm Formation ◽  
Polymer Materials ◽  
Fine Tuning ◽  
Test Medium ◽  
Nonwoven Materials ◽  
Different Temperatures ◽  
Static Tensile ◽  
Matrix Property ◽  
Tensile Experiment ◽  
Property Modification

Abstract Polymer materials can be manufactured with high reproducibility and do offer the potential for chemical modification. This enables matrix property modification and fine-tuning of several material characteristics, such as tissue-implant interaction, inflammatory potential or susceptibility to biofilm formation. Whereas manufacturing protocols are crucial for the resulting material properties, also the evaluation in terms of performance and safety has to be considered. Regarding this, both, temperature and composition of test medium may affect the physicochemical properties of implant materials. The present study addresses the influence of test medium compared to dry test conditions, each at two different temperatures, on the mechanical properties of elastomeric film and nonwoven materials.

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