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You searched on: Author: nien zhang

Displaying records 61 to 68.
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61. Statistical Models for Estimating the Measurement of Pitch in Metrology Instruments
Published: 1/1/1996
Authors: Nien F Zhang, Michael T Postek, Robert D. Larrabee
Abstract: The measurement of pitch in metrology instruments is through to be a benign self-compensating function. In the course of issuing the new scanning electron microscope standard SRM 2090, a new algorithm for the measurement of pitch was developed. This ...

62. Thermal Modeling and Analysis of Laser Calorimeters
Published: 8/1/1995
Authors: Nien F Zhang, David J Livigni, Richard D. Jones, Thomas Scott

63. Analysis of Sensitivity of VCCTL Measurements to Various Input Quantities
Published: Date unknown
Authors: Adriana Hornikova, Blaza Toman, Nien F Zhang, Hung-Kung Liu, Robert Charles Hagwood, Edward Joseph Garboczi, Jeffrey W Bullard
Abstract: Virtual measurements are the outputs of well-defined mathematical models based on theoretical principles and simulation algorithms. The VCCTL (Virtual Cement and Concrete Testing Laboratory) is a software system built by the Material and Construction ...

64. Effects of Using Generalized Moving Averages of Stationary Process Data and Their Applications
Published: Date unknown
Author: Nien F Zhang
Abstract: Due to the high frequency sampling of on-line data acquisition systems, most of the on-line data are auto correlated. The autocorrelation of the process data has impacts on the applications of statistical analysis methodologies since the assumption ...

65. Estimating the Variance of the Graybill-Deal Estimator of a Common Mean
Published: Date unknown
Author: Nien F Zhang

66. On-Line Process Control
Published: Date unknown
Authors: Raghu N Kacker, Nien F Zhang
Abstract: The natural state of manufacturing and measurement processes is usually nonstationary. The methods of statistical process control (SPC) are therefore inappropriate for on-line control. This paper provides a simple and generic protocol for on-line c ...

67. SRM 1955, Homocysteine and Folate in Human Serum; Production of a New Standard Reference Material
Published: Date unknown
Authors: Mary B Satterfield, B C Nelson, Lorna Tregoning Sniegoski, Adriana Hornikova, Nien F Zhang, Christine M Pfeiffer, Michael James Welch
Abstract: Homocysteine (HCY) and folate are interrelated biomarkers for arteriosclerosis and coronary heart disease with health problems associated with increased levels of homocysteine and low levels of folate. Although many different tests for both HCY and f ...

68. Statistical Analysis on Uncertainty for Autocorrelated Measurements
Published: Date unknown
Author: Nien F Zhang
Abstract: When repeated measurements are autocorrelated, it is inappropriate to use the traditional approach to calculate the uncertainty of the average of the measurements, which assumes that the measurements are statistically independent. In this paper, we p ...

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