A model for predicting crocidolite fiber size distributions

1987 ◽  
Vol 44 (1) ◽  
pp. 148-160 ◽  
Author(s):  
R.L. Virta ◽  
J.M. Segreti
Keyword(s):  
Size Distributions ◽  
Fiber Size

Determination of Fiber Size Distributions of Injection Moulded Polypropylene/Natural Fibers Using X-ray Microtomography

2008 ◽  
Vol 10 (1-2) ◽  
pp. 126-130 ◽  
Author(s):  
A. Alemdar ◽  
H. Zhang ◽  
M. Sain ◽  
G. Cescutti ◽  
J. Müssig
Keyword(s):  
Natural Fibers ◽  
Size Distributions ◽  
X Ray ◽  
Fiber Size

Stretch-induced growth in chicken wing muscles: nerve-muscle interaction in muscular dystrophy

1984 ◽  
Vol 246 (5) ◽  
pp. C378-C384 ◽  
Author(s):  
C. R. Ashmore ◽  
Y. B. Lee ◽  
P. Summers ◽  
L. Hitchcock
Keyword(s):  
Skeletal Muscle ◽  
Growth And Development ◽  
Contractile Activity ◽  
Muscle Growth ◽  
Size Distributions ◽  
Dystrophic Muscle ◽  
Morphological Criteria ◽  
Fiber Size ◽  
Nerve Muscle ◽  
Passive Stretch

Skeletal muscle growth following denervation and denervation plus passive stretch was characterized in the patagialis muscle of normal and dystrophic chicks until 8 wk of age. In both genotypes, muscles denervated at 1 wk of age grew at reduced rates compared with contralateral control muscles whether or not they were passively stretched. Histograms of fiber size distributions as well as morphological criteria showed that passive stretch of denervated dystropic muscles substantially delayed the development of pathology. Denervation alone provided less protection. There was no evidence of fiber necrosis in any denervated dystrophic muscle, although many fibers did exhibit extreme hypertrophy and abnormal morphology. When denervated dystrophic muscles were allowed to reinnervate, growth and development of pathology was rapid. Because denervation, denervation with passive stretch, or passive stretch alone retards, but does not prevent, the development of pathology, it is concluded that dystrophy in the chick is a myogenic defect that is exacerbated by neurally mediated contractile activity.

scholarly journals Conduction velocity distributions compared to fiber size distributions in normal human sural nerve

1995 ◽  
Vol 18 (10) ◽  
pp. 1121-1127 ◽  
Author(s):  
Benno K. van Veen ◽  
Ronald L. L. A. Schellens ◽  
Dick F. Stegeman ◽  
Ruurd Schoonhoven ◽  
Anneke A. W. M. Gabreëls-Festen
Keyword(s):  
Conduction Velocity ◽  
Sural Nerve ◽  
Size Distributions ◽  
Fiber Size ◽  
Normal Human ◽  
Conduction Velocity Distributions

scholarly journals Thermochromic Fibers via Electrospinning

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 842 ◽  
Author(s):  
Jimmy Nguyen ◽  
Ratib M. Stwodah ◽  
Christopher L. Vasey ◽  
Briget E. Rabatin ◽  
Benjamin Atherton ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Solvent System ◽  
Fiber Formation ◽  
Ternary Mixtures ◽  
Coaxial Electrospinning ◽  
Size Distributions ◽  
Proof Of Concept ◽  
Twisted Nematic ◽  
Fiber Size ◽  
Thermochromic Properties

Cholesteryl ester liquid crystals exhibit thermochromic properties related to the existence of a twisted nematic phase. We formulate ternary mixtures of cholesteryl benzoate (CB), cholesteryl pelargonate (CP), and cholesteryl oleyl carbonate (COC) to achieve thermochromic behavior. We aim to achieve thermochromic fibers by incorporating the liquid crystal formulations into electrospun fibers. Two methods of incorporating the liquid crystal (LC) are compared: (1) blend electrospinning and (2) coaxial electrospinning using the same solvent system for the liquid crystal. For blend electrospinning, intermolecular interactions seem to be important in facilitating fiber formation since addition of LC can suppress bead formation. Coaxial electrospinning produces fibers with higher nominal fiber production rates (g/hr) and with higher nominal LC content in the fiber (wt. LC/wt. polymer assuming all of the solvent evaporates) but larger fiber size distributions as quantified by the coefficient of variation in fiber diameter than blend electrospinning with a single nozzle. Importantly, our proof-of-concept experiments demonstrate that coaxially electrospinning with LC and solvent in the core preserves the thermochromic properties of the LC so that thermochromic fibers are achieved.

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