Codes for Error Location: Error Locating Codes

2005 ◽  
pp. 372-411
Keyword(s):  
Location Error ◽  
Error Location

Assessment of Friction Behavior with Surface Location Error Analysis in Milling Process

2019 ◽  
Vol 823 ◽  
pp. 129-134
Author(s):  
N.A. Rafan ◽  
Siti Nur Madihah Ab Rashid ◽  
Z. Jamaludin
Keyword(s):  
Manufacturing Industry ◽  
Milling Process ◽  
Work Piece ◽  
Location Error ◽  
Friction Behavior ◽  
Error Location ◽  
Surface Location Error ◽  
Highly Nonlinear ◽  
Important Quality ◽  
Surface Location

Accurate roundness or circularity measurement is essential to obtain correct functioning of assemblies, making roundness an important quality control parameter in manufacturing industry. Since circular motion while milling a circular work piece leads to quadrant glitches, a phenomenon familiar with existence of highly nonlinear friction behavior, roundness measurement was conducted to investigate this surface location error due to feed rate of the moving work table. This paper presents friction behavior on a milling process circular work piece in line resulted from identified surface error location (SLE).

scholarly journals The Effect of Textual Errors on Dyadic and Individual Learning

1989 ◽  
Vol 21 (2) ◽  
pp. 127-140 ◽  
Author(s):  
Richard H. Hall ◽  
Donald F. Dansereau ◽  
Angela M. O'Donnell ◽  
Lisa P. Skaggs
Keyword(s):  
Learning Strategy ◽  
Individual Learning ◽  
Location Error ◽  
Total Recall ◽  
Major Objective ◽  
Error Frequency ◽  
Error Location ◽  
Text Passage ◽  
Perceived Difficulty ◽  
Better Than

The major objective of the present experiment was to assess the effects of textual errors on dyadic and individual learning. One hundred undergraduates were taught a four-step learning strategy, after which they studied a text passage either dyadically or individually. Half of the passages within both conditions contained syntactic errors. Total recall measures indicated that dyads performed better than individuals on recall of text in sections not containing errors, whereas the groups did not differ on recall of the material in text sections containing errors. Further, dyads outscored individuals on measures of recall of error location, error frequency, and perceived difficulty of the text sections which contained errors. In addition, subjective processing measures indicated that motivation and interest were strongly related to recall.

Influence and Revising Method of Machine-Ruling Grating Line′s Curve Error, Location Error on Plane Grating′ Performance

2013 ◽  
Vol 40 (3) ◽  
pp. 0308009 ◽  
Author(s):  
李晓天 Li Xiaotian ◽  
巴音贺希格 Bayanheshig ◽  
齐向东 Qi Xiangdong ◽  
于海利 Yu Haili ◽  
唐玉国 Tang Yuguo
Keyword(s):  
Location Error ◽  
Error Location ◽  
S Curve

Study on Optimization of the Number of DF Stations

2014 ◽  
Vol 709 ◽  
pp. 485-490
Author(s):  
Xiang Wu ◽  
Jun Jun Zong ◽  
Xun Xue Cui ◽  
Chuan Xu Liu
Keyword(s):  
Maximum Likelihood ◽  
Maximum Likelihood Estimation ◽  
Likelihood Estimation ◽  
Direction Finding ◽  
Location Error ◽  
Location Accuracy ◽  
Error Models ◽  
Reasonable Number ◽  
Simulation Results

Reasonable number of direction finding station is examined in multi-station bearing-crossing location. Though it is believed that increasing the number of station is helpful to improve the location accuracy, In the paper, the maximum likelihood estimation (MLE) as an example. The algorithms and the location error models are given. The simulation results show that the location accuracy will be improved quickly with the increase of the number of the measuring participants, but the improvement will be sharply slowed down if too many station involved, which also boost the complexity of location.

scholarly journals Updates to the Regional Seismic Travel Time (RSTT) Model: 2. Path-dependent Travel-time Uncertainty

2021 ◽  
Vol 178 (2) ◽  
pp. 313-339
Author(s):  
Michael L. Begnaud ◽  
Dale N. Anderson ◽  
Stephen C. Myers ◽  
Brian Young ◽  
James R. Hipp ◽  
...  
Keyword(s):  
Travel Time ◽  
Random Effects ◽  
Mean Squared Error ◽  
Random Effects Model ◽  
Location Error ◽  
Crust And Upper Mantle ◽  
Time Uncertainty ◽  
Uncertainty Estimates ◽  
Event Location ◽  
Travel Time Uncertainty

AbstractThe regional seismic travel time (RSTT) model and software were developed to improve travel-time prediction accuracy by accounting for three-dimensional crust and upper mantle structure. Travel-time uncertainty estimates are used in the process of associating seismic phases to events and to accurately calculate location uncertainty bounds (i.e. event location error ellipses). We improve on the current distance-dependent uncertainty parameterization for RSTT using a random effects model to estimate slowness (inverse velocity) uncertainty as a mean squared error for each model parameter. The random effects model separates the error between observed slowness and model predicted slowness into bias and random components. The path-specific travel-time uncertainty is calculated by integrating these mean squared errors along a seismic-phase ray path. We demonstrate that event location error ellipses computed for a 90% coverage ellipse metric (used by the Comprehensive Nuclear-Test-Ban Treaty Organization International Data Centre (IDC)), and using the path-specific travel-time uncertainty approach, are more representative (median 82.5% ellipse percentage) of true location error than error ellipses computed using distance-dependent travel-time uncertainties (median 70.1%). We also demonstrate measurable improvement in location uncertainties using the RSTT method compared to the current station correction approach used at the IDC (median 74.3% coverage ellipse).

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