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Tear strength of ductile polyolefin films
Polymer Engineering & Science, 2002AbstractA reinforced trouser tear test was developed to evaluate the tear resistance of thin ductile films. Tests with blown film of linear low‐density polyethylene blended with up to 30 wt% of a high melt strength polypropylene (hmsPP) demonstrated that the test differentiated among films based on composition and thickness.
A. C. Chang +4 more
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Parameters affecting anterior capsulotomy tear strength and distension
Journal of Cataract and Refractive Surgery, 2019To study the effects of anterior capsulotomy diameter and discontinuity on tear threshold load and distension for the technique of continuous curvilinear capsulorhexis (CCC).Singapore National Eye Centre, Singapore, and CapsuLaser Inc., Livermore, California, USA.Two separate randomized pairwise cadaver eye preclinical studies.Capsulotomies were ...
Sheraz M, Daya +4 more
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Shoulder Strength With Rotator Cuff Tears
Clinical Orthopaedics and Related Research, 1993Twenty-five patients with rotator cuff tears had bilateral isokinetic shoulder strength evaluations after a pain-relieving subacromial lidocaine injection. Shoulder strength testing was repeated at six months and again at 12 months after rotator cuff surgery. Strength was recorded as a ratio of peak torques comparing the operative with the nonoperative
D, Kirschenbaum +5 more
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The Tearing Strength of Glutaraldehyde Fixed Bovine Pericardium
Biomaterials, Artificial Cells and Artificial Organs, 1989Destructive uniaxial load tests were performed on bovine pericardium that had been chemically modified by glutaraldehyde fixation. To investigate the tearing strength of this tissue, an artificial tear, in the form of a 2mm notch, was introduced into the test specimens. Specimens without a notch, harvested from the same sites in the pericardial sac but
E A, Trowbridge, C E, Crofts
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ISOKINETIC STRENGTH AFTER TEARS OF THE SUPRASPINATUS TENDON
The Journal of Bone and Joint Surgery. British volume, 1997We measured the isokinetic strength of abduction, adduction, internal rotation, and external rotation in ten patients with full-thickness tears of the supraspinatus and ten with partial-thickness tears. The measurements were repeated after intra-articular or intrabursal injection of local anaesthetic.
E, Itoi +4 more
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Tear strength theory of semicrystalline polymers
Journal of Applied Polymer Science, 1983AbstractA theroretical model describing how the tear strenght of semicrystalline polymers depends upon the interaction of the crystalline and amorphous phases is presented. It is based upon the “freevolume“ theory and a “Hooke's law ‐lattice energy” treatment. The strength TM is hypothesized to be partitioned between the crystalline Qc and amorphous Qa
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Pull-Tear Strength Capabilities in Adults
Proceedings of the Human Factors Society Annual Meeting, 1987Forty-four adults between the ages of 22 and 40 years were tested for maximal volitional pulls with the fingers, similar to some pull-tear forces employed for opening packages with tear strips. Twelve different pull conditions were tested-3 types of pull X 2 directions of pull X 2 hands.
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