Results 11 to 20 of about 4,314,685 (205)
Evaluation of the Efficiency of Item Calibration [PDF]
Applied Psychological Measurement, 1988 This study compared several IRT calibration proce dures to determine which procedure, if any, consis tently produced the most accurate item parameter esti mates. A new criterion of calibration efficiency was used for evaluating the calibration procedures; this cri terion considers the joint effects of individual item pa rameter errors as they relate to
Vale, C. David, Gialluca, Kathleen A.
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Accurate calibration of thermophotovoltaic efficiency [PDF]
PhotoniX, 2020 The new record efficiency in Thermophotovoltaics relies upon a highly reflective rear mirror. The excellent rear mirror boosts voltage by enhancing the luminescence extraction, and separately also reflects low energy photons, which would otherwise be ...
Zunaid Omair +3 more
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Thermistor mount efficiency calibration [PDF]
, 1980 Thermistor mount efficiency calibration is accomplished by use of the power equation concept and by complex signal-ratio measurements. A comparison of thermistor mounts at microwave frequencies is made by mixing the reference and the reflected signals to produce a frequency at which the amplitude and phase difference may be readily measured.
Cable, J.W.
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An Efficient Calibration Method for Triaxial Gyroscope [PDF]
IEEE Sensors Journal, 2021 This paper presents an efficient servomotor-aided calibration method for the triaxial gyroscope. The entire calibration process only requires approximately one minute, and does not require high-precision equipment. This method is based on the idea that the measurement of the gyroscope should be equal to the rotation speed of the servomotor.
Li Wang +4 more
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Efficient scheduling to minimize calibrations [PDF]
Proceedings of the twenty-fifth annual ACM symposium on Parallelism in algorithms and architectures, 2013 Integrated Stockpile Evaluation (ISE) is a program to test nuclear weapons periodically. Tests are performed by machines that may require occasional calibration. These calibrations are expensive, so finding a schedule that minimizes calibrations allows more testing to be done for a given amount of money.This paper introduces a theoretical framework for
Michael A. Bender +4 more
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Efficient Calibration of Embedded MPC
IFAC-PapersOnLine, 2020 Model Predictive Control (MPC) is a powerful and flexible design tool of high-performance controllers for physical systems in the presence of input and output constraints. A challenge for the practitioner applying MPC is the need of tuning a large number of parameters such as prediction and control horizons, weight matrices of the MPC cost function ...
Forgione, Marco +2 more
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Innovative and efficient strategy of calibrating Sentinel-1 [PDF]
2009 IEEE International Geoscience and Remote Sensing Symposium, 2009 In the frame of the GMES program, the main objective of the Sentinel-1 mission is to ensure the continuity of SAR data acquisitions for SAR applications in C-band for global earth monitoring. But in contrast to SAR systems already existing in C-band like ASAR/ENVISAT or RADARSAT-2, high demands on the radiometric accuracy are made.
M. Schwerdt +4 more
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Efficient calibration for imperfect computer models
The Annals of Statistics, 2015 Many computer models contain unknown parameters which need to be estimated using physical observations. Kennedy and O'Hagan (2001) shows that the calibration method based on Gaussian process models proposed by Kennedy and O'Hagan (2001) may lead to unreasonable estimate for imperfect computer models.
Tuo, Rui, Wu, C. F. Jeff
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Frontiers in Psychology, 2020 Calibration errors are inevitable and should not be ignored during the estimation of item parameters. Items with calibration error can affect the measurement results of tests.
Xiaojian Sun +5 more
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The Charge‐Transfer Efficiency and Calibration of WFPC2 [PDF]
Publications of the Astronomical Society of the Pacific, 2000 30 pages, 10 figures Accepted for publication in October 2000 ...
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