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Complex computational systems can experience undetected faults that produce incorrect outputs. However, error measures can be adopted to quantify these incorrect results and evaluate computational robustness. This paper offers an approach to assessing the worst case scalable robustness (WCSR) of an algorithm paired with an error measure, as well as the i.i.d. average case scalable robustness (ACSRiid)...
Fault tolerance techniques often presume that the end-user computation must complete flawlessly. Though such strict correctness is natural and easy to explain, it's increasingly unaffordable for extreme-scale computations, and blind to possible preferences among errors, should they prove inevitable. In a case study on traditional sorting algorithms, we present explorations of a criticality measure...
Summary form only given. The time-history of the ion-kinetic energy Ekion throughout the stagnation phase of a neon-puff, 500 ns, 600 kA, Z-pinch implosion was determined. The X-ray spectroscopic system provides a resolving power of 6700 and four consecutive time gated (~1 ns) spectra. A simultaneous axial imaging allows for studying the ion kinetic energy at 0.1-mm-resolution along the pinch column...
X-pinch radiography data are presented for wire array Z-pinches in which the wires initially have an imposed modulation. Calibrated data indicate a sharp contrast between the initially thicker regions of the wire, which remain intact, and the thinner regions which become fully depleted of material.
In recent years, with the rapid development of symbolic computation, the integration of symbolic and numeric methods is increasingly applied in various applications. This paper proposed the use of symbolic computation for the evaluation of measurement uncertainty. The general method and procedure are discussed, and its great potential and powerful features for measurement uncertainty evaluation has...
Evaluation of measurement uncertainty is an essential subject in dimensional measurement. It has also become a dominant issue in coordinate measuring machine (CMM) even though its machine performance has been well accepted by many users. CMM probes, especially touch trigger probes which are commonly used, have been acknowledged as a key error source, largely due to pre-travel variations. The probe...
Coordinate measuring machines (CMMs) have been widely used for enhancing product quality, productivity and reliability. This powerful instrument assists the user by providing them with highly accurate and reliable measurement results. Many studies involving the application of various different methods have been carried out to enhance the performance of CMM. This paper discusses the application of...
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