scholarly journals Turbulence in a network of rigid fibers

2020 ◽  
Vol 5 (7) ◽  
Author(s):  
Stefano Olivieri ◽  
Assad Akoush ◽  
Luca Brandt ◽  
Marco E. Rosti ◽  
Andrea Mazzino
Keyword(s):  
Rigid Fibers

scholarly journals “Picture-in-picture” endoscopic images in the microscope

1999 ◽  
Vol 6 (4) ◽  
pp. E12 ◽  
Author(s):  
Yojiro Seki ◽  
Hiromichi Umezu ◽  
Masaaki Usui ◽  
Takashi Tsumanuma ◽  
Ken-ichi Nakatate
Keyword(s):  
Facial Nerve ◽  
Hemifacial Spasm ◽  
Acoustic Neurinoma ◽  
Neurosurgical Procedures ◽  
Light Weight ◽  
Microscopic Image ◽  
Endoscopic Images ◽  
Endoscopic Image ◽  
Rigid Fibers

The authors describe a new piece of equipment that enables simultaneous monitoring of the endoscopic image and unilateral microscopic image; that is, "picture-in-picture" images for endoscope-assisted microsurgery. The system is simple and purely optical, consisting of light-weight semi-rigid fibers and a special adapter incorporated in the microscope. Throughout the initial neurosurgical procedures in which it was tested, the system proved particularly useful for inspecting the facial nerve behind the acoustic neurinoma and for observing the contact between arteries and the facial nerve during decompressive procedures for hemifacial spasm.

Valorization of Vegetal Fibers in Anti-Fissuration Screed Mortar Formulation

2022 ◽  
Author(s):  
Sergio Pons Ribera ◽  
Rabah Hamzaoui ◽  
Johan Colin ◽  
Benitha Vasseur ◽  
Laetitia Bessette ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Strength ◽  
Natural Fiber ◽  
Natural Fibers ◽  
Point Of View ◽  
Synthetic Fiber ◽  
Sem Images ◽  
Hemp Fibers ◽  
Synthetic Fibers ◽  
Rigid Fibers

This work, which is part of the FIBRABETON project, aims to anti-fissuration screed formulations proposition based on natural fibers and comparing these formulations to a synthetic fiber-screed formulation. Different natural fiber (hemp, flax, miscanthus and bamboo) with contents rangingfrom 0.4% to 0.8% were tested. The spread (slump), the shrinkage and mechanical strength (flexural and compressive) studies were carried out. SEM images of natural fibers and natural fibers screed formulation were analyzed. Overall, it is found that all natural fibers screed formulations tested, have shown better behaviour than the synthetic fibers screed formulation in point of view workability, shrinkage and mechanical properties. The lowest shrinkage value is found in the case of the H5 (5 mm long hemp fibers) screed formulation. Generally speaking, the mechanical strength values (flexural and compressive) are more or less similar between natural soft fibers (hemp and flax) and rigid fibers (miscanthus and bamboo). Taking in account slump, shrinkage and mechanical behavior, the proposed good compromise in this work is the H5 screed formulation.

On the relative rotational motion between rigid fibers and fluid in turbulent channel flow

2016 ◽  
Vol 28 (1) ◽  
pp. 013301 ◽  
Author(s):  
C. Marchioli ◽  
L. Zhao ◽  
H. I. Andersson
Keyword(s):  
Channel Flow ◽  
Rotational Motion ◽  
Turbulent Channel Flow ◽  
Rigid Fibers

Effective Transverse Elastic Properties of Composites Containing Two Types of Continuous Fibers

2007 ◽  
Vol 23 (4) ◽  
pp. 309-318
Author(s):  
P. J. Lin
Keyword(s):  
Elastic Properties ◽  
Current Approach ◽  
Two Phase ◽  
Reinforced Composite ◽  
Proposed Model ◽  
Three Phase ◽  
Local Solutions ◽  
Rigid Fibers ◽  
Interaction Problem ◽  
Properties Of Composites

AbstractBased the previously published model on the two-dimensional micromechanical fiber interaction framework of two-phase composites, effective transverse elastic properties of composites containing two types of randomly located yet unidirectionally aligned circular fibers are studied in this paper. Approximate local solutions for the interaction problem of two randomly located circular fibers of different elastic properties are presented. A fiber-reinforced composite material containing two extreme types of inclusions, voids and rigid fibers, is also investigated. Comparison with Hashin's variational bounds and Mori-Tanaka method, the current approach provides reasonably accurate predictions for three-phase composites. Finally, numerical simulation examples are implemented to demonstrate the capability of the proposed model.

Microstructural Dynamics and Rheology of Suspensions of Rigid Fibers

2018 ◽  
Vol 50 (1) ◽  
pp. 299-318 ◽  
Author(s):  
Jason E. Butler ◽  
Braden Snook
Keyword(s):  
Rigid Fibers

scholarly journals An integral model based on slender body theory, with applications to curved rigid fibers

2021 ◽  
Vol 33 (4) ◽  
pp. 041904
Author(s):  
Helge I. Andersson ◽  
Elena Celledoni ◽  
Laurel Ohm ◽  
Brynjulf Owren ◽  
Benjamin K. Tapley
Keyword(s):  
Slender Body ◽  
Integral Model ◽  
Slender Body Theory ◽  
Model Based ◽  
Rigid Fibers ◽  
Body Theory

Numerical modelling of concrete flow with rigid fibers

2007 ◽  
Author(s):  
P. Laure ◽  
L. Silva ◽  
T. Coupez ◽  
F. Toussaint
Keyword(s):  
Numerical Modelling ◽  
Rigid Fibers ◽  
Concrete Flow
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