Results 271 to 280 of about 578,060 (295)

Analysis of Optical Transfer Function and Phase Error of the Modified Triangular Interferometer

Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2007
We synthesize and analyze the optical transfer function(OTF) of the modified triangular interferometer(MTI) using two-pupil synthesis method, and we present the optimal MTI, which can obtain any bipolar function by combining a wave plate and a linear polarizer. Also, we analyze its potential phase error sources caused by polarization components.
Soo-Gil Kim, Jeong-Duk Ryeom
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Errors in predicting functional capacity for postmyocardial infarction patients using a modified Bruce protocol

American Heart Journal, 1984
Clinically, the modified Bruce protocol is widely used to predict functional capacity in postmyocardial infarction (post-MI) patients. However, it has been suggested that post-MI patients have lower oxygen uptakes for standard workloads. In order to study this, we measured oxygen uptake (VO2) and venous blood lactic acid concentration in 12 post-MI ...
M, Sullivan, M D, McKirnan
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Electrostatic Potential Derived Atomic Charges for Periodic Systems Using a Modified Error Functional

Journal of Chemical Theory and Computation, 2009
A method to generate electrostatic potential (ESP) derived atomic charges in crystalline solids from periodic quantum mechanical calculations, termed the REPEAT method, is presented. Conventional ESP fitting procedures developed for molecular systems, in general, will not work for crystalline systems because the electrostatic potential in periodic ...
Carlos, Campañá, Bastien, Mussard, Tom K, Woo   +2 more
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An Improved Algorithm for Eleman Neural Network by Adding a Modified Error Function

2007
The Eleman Neural Network has been widely used in various fields ranging from temporal version of the Exclusive-OR function to the discovery of syntactic categories in natural language date. However, one of the problems often associated with this type of network is the local minima problem which usually occurs in the process of the learning.
Zhiqiang Zhang, Zheng Tang, GuoFeng Tang, Catherine Vairappan, XuGang Wang, Runqun Xiong   +5 more
openaire   +1 more source

A novel video error concealment technique using modified boundary matching algorithm with correlation function

2013 21st Iranian Conference on Electrical Engineering (ICEE), 2013
Video transmission over wireless networks becomes a major part of multimedia studies especially after fourth-generation communication standard has been introduced. There is a growing need to improve video visual quality, while its computational complexity should remain low. One of the low-complexity Error Concealment (EC) methods for missing macroblock
Ali Radmehr, Abdorasoul Ghasemi
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Modifying Stokes' function to reduce the error of geoid undulation computations

Journal of Geophysical Research: Solid Earth, 1981
A comparison is made of the errors in determining the geoid undulation according to the conventional Molodenskii truncation theory and its modifications as suggested by Molodenskii (1958) and Meissl (1971). The undulation is assumed to be computed from gravity anomalies in a spherical cap and a finite set of harmonic potential coefficients (e.g., GEM 9
openaire   +1 more source

Modified backpropagation algorithm with adaptive learning rate based on differential errors and differential functional constraints

International Conference on Pattern Recognition, Informatics and Medical Engineering (PRIME-2012), 2012
In this paper, a new adaptive learning rate algorithm to train a single hidden layer neural network is proposed. The adaptive learning rate is derived by differentiating linear and nonlinear errors and functional constraints weight decay term at hidden layer and penalty term at output layer.
T. Kathirvalavakumar, S. Jeyaseeli Subavathi   +1 more
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Quantification of landfill methane using modified Intergovernmental Panel on Climate Change’s waste model and error function analysis

Waste Management & Research: The Journal for a Sustainable Circular Economy, 2014
Waste management can be regarded as a cross-cutting environmental ‘mega-issue’. Sound waste management practices support the provision of basic needs for general health, such as clean air, clean water and safe supply of food.
Siva Shangari, Govindan, P, Agamuthu
openaire   +2 more sources

Fitting a Precise Levelling Network to Control Points Using a Modified Robust Huber’s Mean Error Function

Journal of Surveying Engineering, 2017
AbstractThe purpose of this research was to fit a high-accuracy levelling network to points of the vertical national control network, the control points of which are unstable because of vertical terrain movements caused by underground mining. For this reason, the robust M-estimation is used to reduce a negative impact of control points with gross ...
Edward Osada, Andrzej Borkowski, Grzegorz Kurpiński, Marcin Oleksy, Mateusz Seta   +4 more
openaire   +1 more source

Zhang dynamics with modified error-functions for online solution of nonlinear equations so as to avoid local minima

2011 Chinese Control and Decision Conference (CCDC), 2011
Our previous work shows the efficacy and better performance of the Zhang dynamics (ZD) model for solving online nonlinear equations, as compared with the conventional gradient dynamics (GD) model. It is also discovered that, if a nonlinear equation possesses a local minimum point, the ZD state, starting from some initial value close to it, may move ...
Yunong Zhang, Zhende Ke, Kene Li, Zhan Li   +3 more
openaire   +1 more source