120 days ago
90 days ago
30 days ago
7 days ago
Clinical trial, phase 1
Clinical trial, phase 2
Clinical trial, phase 3
Clinical trial, phase 4
Consensus development conference
Consensus development conference, NIH
Controlled clinical trial
Corrected republished article
Randomized controlled trial
All infant: 0-23 mos
All child: 0-18 yrs
All adult: 19+ yrs
Newborn: birth-1 mo
Preschooler: 2-5 yrs
Adolescent: 13-18 yrs
Young adult: 19-24 yrs
Middle-aged: 45-64 yrs
Aged: 65+ yrs
Elderly: 80+ yrs
Mechanical influence of static versus dynamic loadings on parametrical analysis of plasticized ethyl cellulose films.
Int J Pharm (2011)
408(1-2):1-8 PMID 21095223
The object of this study was to investigate the influence of static and dynamic forces on mechanical properties of the biocompatible polymer ethyl cellulose. Similar polymeric films containing 40% (w/w) of the plasticizer dibutyl sebacate were subjected to tensile forces at different velocities. The average Young's modulus and the variation of yield strength, strain, and strain energy at different velocities complied with the pre-established theories of dynamic loadings. The ultimate strength and the yield strength and/or strain displayed linearity with the velocity, though the ultimate strain and therefore, the plastic and/or ultimate working energies proved non-linear pseudo-Michaelis-Menten behavior. The speculation was that achieving the maximum displacement would probably be the most important cause of failure. Finally the most suitable velocity at which the data would obtain the most demonstrable stress-strain diagrams was selected: tensile forces at almost low velocities, best illustrated as static forces, proved immature failure of the specimens during or shortly after the yield; so that the specimen resembled as a brittle material. High velocities of loadings were also avoided since the strain would usually approach the plateau and would therefore disrupt the rational correlation between forces and displacements during the end region of the curve.
Copyright © 2010 Elsevier B.V. All rights reserved.
Version: za2963e q8za7 q8zbf q8zc4 q8zdb q8ze2 q8zf8 q8zgf
Similar articles you may find interesting…
A Reconstruction of Quantum Mechanics
arXiv:1306.3951 [quant-ph] 17 Jun 2013
We formulate a general principle that supplants Boolean \sigma-algebra of
Intrinsic properties of a classical system by a \sigma-complex (a union of
\sigma-algebras) of extrinsic properties of a quantum system that are elicited
By interactions with other systems. We apply the canonical definitions o...
I/O-Efficient Planar Range Skyline and Attrition Priority Queues
arXiv:1306.2815 [cs.DS] 12 Jun 2013
We store a set P of n 2D
Points in a structure such that, given a query rectangle Q = [a_1, a_2] x [b_1,
B_2], the maxima (a.k.a. skyline) of P \cap Q can be reported efficiently. The
Query is 3-sided if an edge of Q is grounded, giving rise to two variants:
Top-open (b_2 = \infty) and left-open (a_...
Quantifying Long-term Scientific Impact
arXiv:1306.3293 [cs.DL] 14 Jun 2013
Derive a mechanistic model for the citation dynamics of individual papers,
Allowing us to collapse the citation histories of papers from different
Journals and disciplines into a single curve, indicating that all papers follow
The same universal temporal pattern. The observed patterns not only he...
Place any articles on Pubget into your Bookmark folder to read later, download citations, or send to a colleague. Create an account or sign in to create your bookmarks.
Pubget Updates sends you emails when Pubget finds new papers that match your search. Use Pubget Updates to get the latest articles for your specialty, written by a colleague, or published by your favorite journals.