Shear wave elastography (SWE) is a promising tool for estimating musculoskeletal tissue properties, but few studies have rigorously assessed its repeatability and sources of error. The objectives of this study were to assess: (1) the extent to which probe positioning error and human user error influence measurement accuracy, (2) intra-user, inter-user, and day-to-day repeatability, and (3) the ...

We present the first comprehensive experimental characterization of bond wire interconnects at microwave frequencies which includes a repeatability study, modeling and optimization. Wire bond interconnects with two different bond types (ball-crescent and wedge), two different loop types (tight and loose) and two different lengths (15 and 25 mils), were fabricated and experimentally investigated...

Repeatability is essential to any science—computer science is no exception. However, the area of vulnerability analysis suffers from ambiguous definitions that hinder the repeatability of analysis results. Many researchers have turned to policy-based definitions of a vulnerability in an attempt to alleviate this ambiguity. However, it is rare that security policies are explicitly and precisely ...

The combination of Global Navigation Satellite Systems (GNSS) may improve the accuracy and precision of estimated coordinates, as well as the convergence time of Precise Point Positioning (PPP) solutions. The key conditions are the correct functional model and the proper weighting of observations, for which different characteristics of multi-GNSS signals should be taken into account. In post-pr...

Using data from the Centers for Disease Control (CDC) Proficiency Testing (PT) Surveys, we obtained estimates of repeatability (intralaboratory variability between results on the same material) and reproducibility (interlaboratory variability between results on the same material) for the Technicon SMA 6 (or 12/60) and SMAC 1 (or II) systems used with cresolphthalein complexone methodology to me...

This article investigates inter-individual repeatability in distance moved an open-field test for larval Limnephilus lunatus Curtis, 1834. Repeatability across four trials (two-day trial intervals) was comparable to previous studies on arthropod species (repeatability: R = 0.37), indicating that L. is a suitable model this research field. Two potential nuisance factors were corrected for: (1) p...

A parallel-mechanism-equivalent model for repeatability analysis of an overconstrained kinematic coupling is proposed. An Kelvin-type with one additional support introduced and used method illustration. Contact forces the under a preload are computed Moore-Penrose inverse, deformations obtained using Hertz theory. The equivalently modeled as 7-SPS parallel mechanism, spherical joints which repr...