大型齿轮成型磨削的分度误差补偿技术研究 by 李聚波, 邓效忠, 张洛平

“…Based on the division theory,the operation principle of dividing mechanism and the reasons of generating error of division in the process of large gear form grinding are deeply analyzed,the main errors which affected the accurately dividing are found,one integrated error compensation scheme is set up,the control system is explicated,and the error control system are programmed. …”
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Model Based Adaptive Piecewise Linear Controller for Complicated Control Systems by Tain-Sou Tsay

“…Large gain is used again for small tracking error to cope with large disturbance. Parameters of the three-segment piecewise linear controller are found by an automatic regulating time series which is function of output characteristics of the plant and reference model. …”
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Cone Algorithm of Spinning Vehicles under Dynamic Coning Environment by Shuang-biao Zhang, Xing-cheng Li, Zhong Su

“…Then, through investigation of the effect on Euler attitude algorithm for the equivalency of traditional attitude algorithm, it is found that attitude error is actually the roll angle error including drifting error and oscillating error, which is induced directly by dynamic coning environment and further affects the pitch angle and yaw angle through transferring. …”
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Time Series Forecasting Using Holt-Winters Exponential Smoothing: Application to Abaca Fiber Data by Mary Pleños

“…The most accurate forecasts were selected on the basis of Mean Square Error, Root Mean Square Error, Mean Absolute Percentage Error, and Mean Absolute Scaled Error. …”
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Optimal Waveform Selection for Robust Target Tracking by Fengming Xin, Jinkuan Wang, Qiang Zhao, Yuhuan Wang

“…The optimal parameters for transmitted waveform are finally found by the minimization of the trace of the estimated state error covariance. …”
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Study on the Influence of Inertial Force on the Performance of Aerostatic Thrust Bearings by Shuo Jia, Chenhui Jia, Yanhui Lu

“…It is found that the bearing rotating speed has a significant influence on the inertial force error, and the bearing radius also has a certain influence on the inertial force error, while the initial clearance, gas supply pressure, and torsion angle have relatively little influence on the inertial force error. …”
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Calculating the size of positronium by I.P. Popov

“…Background. A fairly common error has been established in the particular case of the problem of two bodies of the same mass performing circular motion around a fixed center of their mass, which consists in the fact that the radius of rotation is found using a formula obtained under conditions that are not satisfied for material points of the same mass. …”

The promise of open survey questions-The validation of text-based job satisfaction measures. by Indy Wijngaards, Martijn Burger, Job van Exel

“…In line with our hypotheses, we found that specific factor error is higher in the open question text-based measure than in the semi-open question text-based measure. …”
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On Internally Statically and Kinematically Determinate Problems in the Linear Theory of Shells by Z. Rychter

“…Modified conditions of static and kinematic determinateness for the interior domain of an arbitrary elastic shell are found on the basis of estimates of the error of shell theory solutions in an energetic norm. …”
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A Comparison of Models for Estimating Solar Radiation from Sunshine Duration in Croatia by Tihomir Betti, Ivana Zulim, Slavica Brkić, Blanka Tuka

“…Conventional statistical indicators are used as numerical indicators of the model performance: mean absolute percentage error (MAPE), mean bias error (MBE), mean absolute error (MAE), and root-mean-square error (RMSE). …”
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Quantitative analysis of patent translation by Yvonne Tsai

“…The overall results demonstrate that both Chinese and English texts had complied with the standards from the patent office for readable, comprehensible, clear, and concise texts, and a further analysis revealed that Chinese text quality influenced the quality of the English translation. In addition, it was found that the more errors there were in a text, the less likely it was to comply with given standards.…”
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Estimating the Reliability Function of (2+1) Cascade Model by Khaleel et al.

“…There is a comparison between six different estimation methods by the simulation study by MATLAB 2016, using two statistical criteria Mean square error and Mean Absolute Percentage Error, where it is found that best estimator between the six estimators is Maximum likelihood estimation method.…”
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Prediction and Modelling with Taguchi, ANN and ANFIS of Optimum Machining Parameters in Drilling of Al 6082-T6 Alloy by İbrahim Turan, Barış Özlü, Hasan Basri Ulaş, Halil Demir

“…As a result, it was observed that increasing the cutting speed and feed rate increases the cutting temperature hole error, circularity error and cylindricity error. …”
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Impact of Data Assimilation Frequency and Observation Location in Thermal Effluent Modeling for Coastal Waters by N. Alsulaiman, M. vanReeuwijk, M. D. Piggott

“…Relative to the dynamics of SB, the optimal frequency was found to be hourly. An excessive rate of DA was found to cause filter divergence, where forecast error is falsely underestimated due to diminishing ensemble variance. …”
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Study of Factors Affecting the Production of Strategic Crops in Iraq Using Artificial Neural Networks by weam saadi hamzah

“…Artificial neural networks were found to outperform multiple linear regression since on agricultural data evaluations they produced more exact estimates with lower error levels. …”
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Integral equation for numerical solution of stationary quantum-mechanical problems by Sergey Yu. Knyazev

“…The test results of the solving problems method for one-dimensional and two-dimensional quantum oscillators are obtained. The found numerical values of eigenenergy and eigenfunctions of the oscillator are compared to the known analytical solutions, and then the error of result is evaluated. …”
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PREDICTING AND ANALYZING OF TURKISH SUGAR PRICE WITH ARCH, GARCH, EGARCH AND ARIMA METHODS by Mehmet Arif ŞAHİNLİ

“…Mean absolute percentage error (MAPE), root mean square error (RMSE) and mean absolute deviation (MAD) were used to determine the fit model for making predicting. …”
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齿轮热滚挤过程中滑动系数变化对齿形误差的影响 by 郑鹏, 周国祥, 段振云

“…During ausform finishing process of hardened gears, there is plastic displacement of metal on the tooth surface and the distortion of tooth profile .If the rolling dies are not preciously designed or the machining operation is not properly implemented, there is an influence on the profile accuracy, noise and service life of the workpiece gears. Many causes are found to contribute to the profile error of teeth, but this paper only focuses on, in engagement theory, the changes of slip factor on the surface of the workpiece gear, which is in double-flank engagement with tool gears without backlash. …”
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Comparison of mobile robot positioning techniques by Iuliia Yamnenko, Vladislav Osokin

“…Calculation results on dispersion and absolute positioning error show that the positioning using genetic algorithm gives less error than the one using trilateration method. …”
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Physical-Layer Security of a Binary Data Sequence Transmitted With Bessel–Gaussian Beams Over an Optical Wiretap Channel by Tyan-Lin Wang, Ivan B. Djordjevic

“…We found that the bit-error rate curves for the eavesdropper were consistently worse than those of the intended receiver under several turbulence conditions and that further evidence of an error floor even when the eavesdropper uses an optical amplifier is promising for secure communications.…”
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