Results 261 to 270 of about 5,040,527 (296)

Mechanical Strength of Microstructured Optical Fibers

Journal of Lightwave Technology, 2014
An experimental study of the mechanical reliability of microstructured optical fibers (MOFs) is reported. Tensile tests were carried on five types of MOFs and two reference fibers, and the tensile strengths were analyzed using Weibull statistics. Optical microscopy of the surfaces of rupture allowed identifying the critical flaws and determining the ...
Sonnenfeld, Camille, Sulejmani, Sanne, Geernaert, Thomas, Eve, S., Gomina, M., Mergo, P., Makara, M., Skorupski, K., Thienpont, Hugo, Berghmans, Francis   +9 more
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Mechanism of strength increase for a hydrothermal porcelain

Dental Materials, 2003
The objectives of this study were to verify the formation of a hydrolyzed surface layer on Duceram LFC, to determine the effects of such a layer on mechanical material properties, and to identify a specific mechanism responsible for any strength increase observed.Specimens were fabricated from dentin porcelain by a vibration blotting technique and were
Jason A, Griggs, Anil, Kishen, Kim Nga, Le   +2 more
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Strength and Strengthening Mechanisms

1984
The strength of a material depends on various intrinsic and extrinsic factors. Although the most important is the chemical composition, the properties can be manipulated by altering the structure. Various mechanical, thermal, and surface treatments are used to create the desired balance of strength, hardness, and ductility.
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The Characterization of the Mechanical Strength of Chewable Tablets

Pharmaceutical Development and Technology, 1998
The purpose of this research was to identify possible test procedures for the evaluation of the strength of chewable tablets with respect to prevention of damage to teeth or mandibular joints when tablets are consumed. Diametral compression and flexure tests were employed to evaluate the strength of commercial samples from five manufacturers of ...
M C, Ambros, F, Podczeck, H, Podczeck, J M, Newton   +3 more
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Mechanical strength of repairs of the rotator cuff

The Journal of Bone and Joint Surgery. British volume, 1994
We have studied the mechanical properties of several current techniques of tendon-to-bone suture employed in rotator-cuff repair. Non-absorbable braided polyester and absorbable polyglactin and polyglycolic acid sutures best combined ultimate tensile strength and stiffness.
C, Gerber, A G, Schneeberger, M, Beck, U, Schlegel   +3 more
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The Mechanical Strength of Various Suture Techniques

Journal of Hand Surgery, 1992
The mechanical strengths of five techniques of tendon repair have been evaluated using human cadaver tendons. A modified Kessler repair with a peripheral circumferential suture and the method of Becker were found to require the greatest load to produce gapping, but the Becker and Savage repairs withstood the highest load before failure.
I A, Trail, E S, Powell, J, Noble
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The strength of a cement acetabular locking mechanism

The Journal of Arthroplasty, 2001
To minimize the morbidity associated with revision of a well-fixed acetabular shell, some surgeons advocate cementing a polyethylene liner into the shell when a liner exchange is not possible. So far the strength of this cement locking mechanism has been measured on only a few specimens.
R D, Meldrum, J M, Hollis
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Biocompatible microcapsules with enhanced mechanical strength

Journal of Biomedical Materials Research, 2001
AbstractA block copolymer, (short‐chain alginate)‐co‐MPEG, was synthesized and used for coating the capsular membranes of the photosensitive microcapsules. The resulted microcapsules exhibited an excellent mechanical strength. The permeability test results revealed that the capsular membrane was freely permeable to cytochrome C and myoglobin, less ...
Shwu Jen, Chang, Chen Hsen, Lee, Chun Yuan, Hsu, Yng Jiin, Wang   +3 more
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Cellular mechanisms controlling the strength of synapses

Journal of Electron Microscopy Technique, 1988
AbstractThe mechanisms suspected as contributors to the regulation of synaptic strength act at a variety of sites along the causal chain that links activity in a presynaptic neuron to activity in a postsynaptic one. At several places in this chain, morphological factors are expected to have a powerful influence, and at several others, key insights into
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Mechanical Strength of Materials

2010
The response of materials to applied forces concerns a field of material properties which has been of prime interest to human beings since the emergence of mankind. Even as a child, already, one gathers experiences about what we vaguely call the “strength” of a material, by feeling with our fingers how “hard” or “soft” a specific material is.
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