Rationale of a Test Setup with a Defined COR for Extra-Discal Motion-Preserving Implants with a Low Implant Stiffness

2012 ◽  
pp. 134-153
Author(s):  
C. Schilling ◽  
S. Krüger ◽  
J. Beger ◽  
C. Wing
Keyword(s):  
Test Setup

A reference test setup and comparison between different HPEM testing schemes

2020 ◽  
Author(s):  
Tomas Hurtig ◽  
Thorsten Pusch ◽  
Martin Schaarschmidt ◽  
Mattias Elfsberg ◽  
Niklas Wellander ◽  
...  
Keyword(s):  
Reference Test ◽  
Test Setup

scholarly journals Initial study on removing cellular residues from hydrostatic high-pressure treated allogeneic tissue using ultrasound

2020 ◽  
Vol 6 (3) ◽  
pp. 176-179
Author(s):  
Christoph Drobek ◽  
Janine Waletzko ◽  
Michael Dau ◽  
Bernhard Frerich ◽  
Volker Weißmann ◽  
...  
Keyword(s):  
High Pressure ◽  
Structural Properties ◽  
Dna Content ◽  
Bone Allograft ◽  
Initial Study ◽  
Microbiological Contamination ◽  
Test Setup ◽  
Allograft Tissue ◽  
Bone Allografts ◽  
Content Determination

AbstractHydrostatic high-pressure technology (HHD) devitalizes tissue quickly and gently, without negatively affecting the structural properties. HHD-treated tissues must be cleaned from devitalized cells. A partially automated, gentle, reproducible and timesaving rinsing test setup utilizing ultrasound is demonstrated in this study. The test setup is used to clean HHD-treated bone allografts of tissue residues and prevent microbiological contamination. A rinsing procedure is investigated. Residual DNA content determination is utilized to analyze cleaned bone allograft tissue for rinsing procedure evaluation.

scholarly journals Analytical Investigation on the Effect of Test Setup on Bond Strength

CivilEng ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 14-34
Author(s):  
Konstantinos Tsiotsias ◽  
Stavroula J. Pantazopoulou
Keyword(s):  
Bond Strength ◽  
Pullout Test ◽  
Analytical Investigation ◽  
Strength Increase ◽  
Confining Stress ◽  
Direct Tension ◽  
Bond Slip ◽  
Test Setup ◽  
Long Time

Experimental procedures used for the study of reinforcement to concrete bond have been hampered for a long time by inconsistencies and large differences in the obtained behavior, such as bond strength and mode of failure, depending on the specimen form and setup used in the test. Bond is controlled by the mechanics of the interface between reinforcement and concrete, and is sensitive to the influences of extraneous factors, several of which underlie, but are not accounted for, in conventional pullout test setups. To understand and illustrate the importance of specimen form and testing arrangement, a series of computational simulations are used in the present work on eight distinct variants of conventional bar pullout test setups that are used routinely in experimental literature for the characterization of bond-slip laws. The resulting bond strength increase generated by unaccounted confining stress fields that arise around the bar because of the boundary conditions of the test setup is used to classify the tests with respect to their relevance with the intended use of the results. Of the pullout setups examined, the direct tension pullout test produced the most conservative bond strength results, completely eliminating the contributions from eccentricity and passive confinement.

ESDs on Solar Cells—Degradation, Modeling, and Importance of the Test Setup

2008 ◽  
Vol 36 (5) ◽  
pp. 2395-2403 ◽  
Author(s):  
J.-C. Mateo-Velez ◽  
V. Inguimbert ◽  
J.-F. Roussel ◽  
D. Sarrail ◽  
L. Levy ◽  
...  
Keyword(s):  
Solar Cells ◽  
Test Setup ◽  
Degradation Modeling

Study of the Effect of Hole Clearance and Thread Fit on the Self-Loosening of Threaded Fasteners

2006 ◽  
Vol 129 (6) ◽  
pp. 586-594 ◽  
Author(s):  
Sayed A. Nassar ◽  
Basil A. Housari
Keyword(s):  
Analytical Investigation ◽  
The Self ◽  
Time Data ◽  
Experimental Procedure ◽  
Test Setup ◽  
Threaded Fasteners ◽  
Service Load ◽  
Real Time Data ◽  
Theoretical Results ◽  
Simplified Mathematical Model

This study provides an experimental and theoretical investigation of the effect of hole clearance and thread fit on the self-loosening of tightened threaded fasteners that are subjected to a cyclic transverse service load. An experimental procedure and test setup are developed in order to collect real-time data on the rate of clamp load loss per cycle as well as the loosening rotation of the bolt head. Three levels of hole clearance are investigated; namely, 3%, 6%, and 10% of the bolt nominal diameter. For the commonly used 2A thread fit for a selected bolt size, three classes of the nut thread fit are considered; namely, 1B, 2B, and 3B. A simplified mathematical model is used for the analytical investigation of the effect of the hole clearance and thread fit on threaded fasteners self-loosening. The experimental and theoretical results are presented and discussed.

scholarly journals Design and performance of the South Pole Acoustic Test Setup

2012 ◽  
Vol 683 ◽  
pp. 78-90 ◽  
Author(s):  
Y. Abdou ◽  
K.-H. Becker ◽  
J. Berdermann ◽  
M. Bissok ◽  
C. Bohm ◽  
...  
Keyword(s):  
South Pole ◽  
The South ◽  
Test Setup ◽  
And Performance
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