**Commenced**in January 2007

**Frequency:**Monthly

**Edition:**International

**Paper Count:**599

# Search results for: least-mean square (LMS)

##### 599 Study on Bending Characteristics of Square Tube Using Energy Absorption Part

**Authors:**
Shigeyuki Haruyama,
Zefry Darmawan,
Ken Kaminishi

**Abstract:**

In the square tube subjected to the bending load, the rigidity of the entire square tube is reduced when a collapse occurs due to local stress concentration. Therefore, in this research, the influence of bending load on the square tube with attached energy absorbing part was examined and reported. The analysis was conducted by using Finite Element Method (FEM) to produced bending deflection and buckling points. Energy absorption was compared from rigidity of attached part and square tube body. Buckling point was influenced by the rigidity of attached part and the thickness rate of square tube.

**Keywords:**
Square tube,
bending stress,
energy absorption,
finite element analysis,
rigidity.

##### 598 Agents Network on a Grid: An Approach with the Set of Circulant Operators

**Authors:**
Babiga Birregah,
Prosper K. Doh,
Kondo H. Adjallah

**Abstract:**

**Keywords:**
Pascal matrices,
Binomial Recursion,
Circulant Operators,
Square Matrix Bipartition,
Local Network,
Parallel networks
of agents.

##### 597 Group of Square Roots of Unity Modulo n

**Authors:**
Rochdi Omami,
Mohamed Omami,
Raouf Ouni

**Abstract:**

**Keywords:**
Group,
modulo,
square roots,
unity.

##### 596 SystemC Modeling of Adaptive Least Mean Square Filter

**Authors:**
Kyu Han Kim,
Soon Kyu Kwon,
Heung Sun Yoon,
Jong Tae Kim

**Abstract:**

**Keywords:**
Adaptive Filter,
Least-Mean-Square Algorithm,
SystemC,
Transversal Fir Filter.

##### 595 Effect of Hartmann Number on Free Convective Flow in a Square Cavity with Different Positions of Heated Square Block

**Authors:**
Abdul Halim Bhuiyan,
M. A. Alim,
Md. Nasir Uddin

**Abstract:**

This paper is concerned with the effect of Hartmann number on the free convective flow in a square cavity with different positions of heated square block. The two-dimensional Physical and mathematical model have been developed, and mathematical model includes the system of governing mass, momentum and energy equations are solved by the finite element method. The calculations have been computed for Prandtl number Pr = 0.71, the Rayleigh number *Ra* = 1000 and the different values of Hartmann number. The results are illustrated with the streamlines, isotherms, velocity and temperature fields as well as local Nusselt number.

**Keywords:**
Finite element method,
free convection,
Hartmann number,
square cavity.

##### 594 Exact Solution of the Ising Model on the 15 X 15 Square Lattice with Free Boundary Conditions

**Authors:**
Seung-Yeon Kim

**Abstract:**

**Keywords:**
Phase transition,
Ising magnet,
Square lattice,
Freeboundary conditions,
Exact solution.

##### 593 Mean Square Stability of Impulsive Stochastic Delay Differential Equations with Markovian Switching and Poisson Jumps

**Authors:**
Dezhi Liu

**Abstract:**

In the paper, based on stochastic analysis theory and Lyapunov functional method, we discuss the mean square stability of impulsive stochastic delay differential equations with markovian switching and poisson jumps, and the sufficient conditions of mean square stability have been obtained. One example illustrates the main results. Furthermore, some well-known results are improved and generalized in the remarks.

**Keywords:**
Impulsive,
stochastic,
delay,
Markovian switching,
Poisson jumps,
mean square stability.

##### 592 Efficient Variants of Square Contour Algorithm for Blind Equalization of QAM Signals

**Authors:**
Ahmad Tariq Sheikh,
Shahzad Amin Sheikh

**Abstract:**

**Keywords:**
Adaptive filtering,
Blind Equalization,
Square
Contour Algorithm.

##### 591 Experimental Investigation of the Maximum Axial Force in the Folding Process of Aluminum Square Columns

**Authors:**
A. Niknejad,
G. H. Liaghat,
A. H. Behravesh,
H. Moslemi Naeini

**Abstract:**

In this paper, a semi empirical formula is presented based on the experimental results to predict the first pick (maximum force) value in the instantaneous folding force- axial distance diagram of a square column. To achieve this purpose, the maximum value of the folding force was assumed to be a function of the average folding force. Using the experimental results, the maximum value of the force necessary to initiate the first fold in a square column was obtained with respect to the geometrical quantities and material properties. Finally, the results obtained from the semi empirical relation in this paper, were compared to the experimental results which showed a good correlation.

**Keywords:**
Honeycomb,
folding force,
square column,
aluminum,
axial loading.

##### 590 A Special Algorithm to Approximate the Square Root of Positive Integer

**Authors:**
Hsian Ming Goo

**Abstract:**

The paper concerns a special approximate algorithm of the square root of the specific positive integer, which is built by the use of the property of positive integer solution of the Pell’s equation, together with using some elementary theorems of matrices, and then takes it to compare with general used the Newton’s method and give a practical numerical example and error analysis; it is unexpected to find its special property: the significant figure of the approximation value of the square root of positive integer will increase one digit by one. It is well useful in some occasions.

**Keywords:**
Special approximate algorithm,
square root,
Pell’s
equation,
Newton’s method,
error analysis.

##### 589 Mean-Square Performance of Adaptive Filter Algorithms in Nonstationary Environments

**Authors:**
Mohammad Shams Esfand Abadi,
John Hakon Husøy

**Abstract:**

**Keywords:**
Adaptive filter,
general framework,
energy conservation,
mean-square performance,
nonstationary environment.

##### 588 A Novel Forgetting Factor Recursive Least Square Algorithm Applied to the Human Motion Analysis

**Authors:**
Hadi Sadoghi Yazdi,
Mehri Sadoghi Yazdi,
Mohammad Reza Mohammadi

**Abstract:**

This paper is concerned with studying the forgetting factor of the recursive least square (RLS). A new dynamic forgetting factor (DFF) for RLS algorithm is presented. The proposed DFF-RLS is compared to other methods. Better performance at convergence and tracking of noisy chirp sinusoid is achieved. The control of the forgetting factor at DFF-RLS is based on the gradient of inverse correlation matrix. Compared with the gradient of mean square error algorithm, the proposed approach provides faster tracking and smaller mean square error. In low signal-to-noise ratios, the performance of the proposed method is superior to other approaches.

**Keywords:**
Forgetting factor,
RLS,
Inverse correlation matrix,
human motion analysis.

##### 587 Study on the Impact of Size and Position of the Shear Field in Determining the Shear Modulus of Glulam Beam Using Photogrammetry Approach

**Authors:**
Niaz Gharavi,
Hexin Zhang

**Abstract:**

**Keywords:**
Shear field test method,
structural-sized test,
shear
modulus of Glulam beam,
photogrammetry approach.

##### 586 Multi-criteria Optimization of Square Beam using Linear Weighted Average Model

**Authors:**
Ali Farhaninejad,
Rizal Zahari,
Ehsan Rasooliyazdi

**Abstract:**

**Keywords:**
Crashworthiness,
side impact,
energy absorption,
multi-objective optimization,
Square beam,
SEA

##### 585 Classification of Earthquake Distribution in the Banda Sea Collision Zone with Point Process Approach

**Authors:**
Henry J. Wattimanela,
Udjianna S. Pasaribu,
Nanang T. Puspito,
Sapto W. Indratno

**Abstract:**

**Keywords:**
Banda sea collision zone,
earthquakes,
mean square
error,
Poisson distribution,
chi-square test.

##### 584 Realization of Electronically Controllable Current-mode Square-rooting Circuit Based on MO-CFTA

**Authors:**
P. Silapan,
C. Chanapromma,
T. Worachak

**Abstract:**

**Keywords:**
CFTA,
Current-mode,
Square-rooting Circuit

##### 583 Effect of Reynolds Number on Flow past a Square Cylinder in Presence of Upstream and Downstream Flat Plate at Small Gap Spacing

**Authors:**
Shams-ul-Islam,
Raheela Manzoor,
Zhou Chao Ying

**Abstract:**

**Keywords:**
Detached flat plates,
drag and lift coefficients,
Reynolds numbers,
square cylinder,
Strouhal number.

##### 582 Computer Aided Design of Reshaping Process of Circular Pipes into Square Pipes

**Authors:**
Parviz Alinezhad,
Ali Sanati,
Koorosh Naser Momtahen

**Abstract:**

**Keywords:**
Circular Pipes,
Square Pipes,
Shear Deformation,
Reshaping Process,
Numerical Simulation.

##### 581 Theoretical Investigation of the Instantaneous Folding Force during the First Fold Creation in a Square Column

**Authors:**
A. Niknejad,
G. H. Liaghat,
A. H. Behravesh,
H. Moslemi Naeini

**Abstract:**

**Keywords:**
Instantaneous force,
Folding force,
Honeycomb,
Square column.

##### 580 Minimizing Examinee Collusion with a Latin- Square Treatment Structure

**Authors:**
M. H. Omar

**Abstract:**

**Keywords:**
Colluding pairs,
Scale for Colluding Potential,
Latin-Square Structure,
Minimization of Cheating.

##### 579 Equivalent Field Calculation to Irregular Symmetric and Asymmetric Photon Fields

**Authors:**
N. Chegeni,
M. J. Tahmasebi Birgani

**Abstract:**

Equivalent fields are frequently used for central axis depth-dose calculations of rectangular and irregular shaped photon beam. Since most of the proposed models to calculate the equivalent square field, are dosimetry-based, a simple physical-based method to calculate the equivalent square field size was used as the basis of this study. The table of the sides of the equivalent square for rectangular fields was constructed and then compared with the well-known tables of BJR and Venselaar with the average relative error percentage of 2.5±2.5 % and 1.5±1.5 % respectively. To evaluate the accuracy of this method, the PDDs were measured for some special irregular symmetric and asymmetric treatment fields and their equivalent squares for Siemens Primus Plus linear accelerator for both energies 6 and 18MV. The mean relative differences of PDDs measurement for these fields and their equivalent square was approximately 1% or less. As a result, this method can be employed to calculate equivalent field not only for rectangular fields but also for any irregular symmetric or asymmetric field.

**Keywords:**
Equivalent field,
asymmetric field,
irregular field,
multi leaf collimators.

##### 578 Force Statistics and Wake Structure Mechanism of Flow around a Square Cylinder at Low Reynolds Numbers

**Authors:**
Shams-Ul-Islam,
Waqas Sarwar Abbasi,
Hamid Rahman

**Abstract:**

Numerical investigation of flow around a square cylinder are presented using the multi-relaxation-time lattice Boltzmann methods at different Reynolds numbers. A detail analysis are given in terms of time-trace analysis of drag and lift coefficients, power spectra analysis of lift coefficient, vorticity contours visualizations, streamlines and phase diagrams. A number of physical quantities mean drag coefficient, drag coefficient, Strouhal number and root-mean-square values of drag and lift coefficients are calculated and compared with the well resolved experimental data and numerical results available in open literature. The Reynolds numbers affected the physical quantities.

**Keywords:**
Code validation,
Force statistics,
Multi-relaxation-time lattice Boltzmann method,
Reynolds numbers,
Square cylinder.

##### 577 Bipolar Square Wave Pulses for Liquid Food Sterilization using Cascaded H-Bridge Multilevel Inverter

**Authors:**
Hanifah Jambari,
Naziha A. Azli,
M. Afendi M. Piah

**Abstract:**

**Keywords:**
pulsed electric field,
multilevel inverter,
bipolarsquare wave,
food sterilization

##### 576 Stability of Square Plate with Concentric Cutout

**Authors:**
B. S. Jayashankarbabu,
Karisiddappa

**Abstract:**

The finite element method is used to obtain the elastic buckling load factor for square isotropic plate containing circular, square and rectangular cutouts. ANSYS commercial finite element software had been used in the study. The applied inplane loads considered are uniaxial and biaxial compressions. In all the cases the load is distributed uniformly along the plate outer edges. The effects of the size and shape of concentric cutouts with different plate thickness ratios and the influence of plate edge conditions, such as SSSS, CCCC and mixed boundary condition SCSC on the plate buckling strength have been considered in the analysis.

**Keywords:**
Concentric cutout,
Elastic buckling,
Finite element method,
Inplane loads,
Thickness ratio.

##### 575 Mathematical Determination of Tall Square Building Height under Peak Wind Loads

**Authors:**
Debojyoti Mitra

**Abstract:**

The present study concentrates on solving the along wind oscillation problem of a tall square building from first principles and across wind oscillation problem of the same from empirical relations obtained by experiments. The criterion for human comfort at the worst condition at the top floor of the building is being considered and a limiting value of height of a building for a given cross section is predicted. Numerical integrations are carried out as and when required. The results show severeness of across wind oscillations in comparison to along wind oscillation. The comfort criterion is combined with across wind oscillation results to determine the maximum allowable height of a building for a given square cross-section.

**Keywords:**
Tall Building,
Along-wind Response,
Across-wind Response,
Human Comfort.

##### 574 Simulation of Natural Convection in Concentric Annuli between an Outer Inclined Square Enclosure and an Inner Horizontal Cylinder

**Authors:**
Sattar Al-Jabair,
Laith J. Habeeb

**Abstract:**

**Keywords:**
natural convection,
concentric annulus,
square
inclined enclosure

##### 573 An EWMA p Chart Based On Improved Square Root Transformation

**Authors:**
S. Sukparungsee

**Abstract:**

Generally, the traditional Shewhart p chart has been developed by for charting the binomial data. This chart has been developed using the normal approximation with condition as low defect level and the small to moderate sample size. In real applications, however, are away from these assumptions due to skewness in the exact distribution. In this paper, a modified Exponentially Weighted Moving Average (EWMA) control chat for detecting a change in binomial data by improving square root transformations, namely ISRT p EWMA control chart. The numerical results show that ISRT p EWMA chart is superior to ISRT p chart for small to moderate shifts, otherwise, the latter is better for large shifts.

**Keywords:**
Number of defects,
Exponentially Weighted Moving Average,
Average Run Length,
Square root transformations.

##### 572 Combined Analysis of Sudoku Square Designs with Same Treatments

**Authors:**
A. Danbaba

**Abstract:**

**Keywords:**
Sudoku designs,
combined analysis,
multi-environment experiments,
common treatments.

##### 571 Mean Square Exponential Synchronization of Stochastic Neutral Type Chaotic Neural Networks with Mixed Delay

**Authors:**
Zixin Liu,
Huawei Yang,
Fangwei Chen

**Abstract:**

This paper studies the mean square exponential synchronization problem of a class of stochastic neutral type chaotic neural networks with mixed delay. On the Basis of Lyapunov stability theory, some sufficient conditions ensuring the mean square exponential synchronization of two identical chaotic neural networks are obtained by using stochastic analysis and inequality technique. These conditions are expressed in the form of linear matrix inequalities (LMIs), whose feasibility can be easily checked by using Matlab LMI Toolbox. The feedback controller used in this paper is more general than those used in previous literatures. One simulation example is presented to demonstrate the effectiveness of the derived results.

**Keywords:**
Exponential synchronization,
stochastic analysis,
chaotic neural networks,
neutral type system.

##### 570 Numerical Simulations of Shear Driven Square and Triangular Cavity by Using Lattice Boltzmann Scheme

**Authors:**
A. M. Fudhail,
N. A. C. Sidik,
M. Z. M. Rody,
H. M. Zahir,
M.T. Musthafah

**Abstract:**

In this paper, fluid flow patterns of steady incompressible flow inside shear driven cavity are studied. The numerical simulations are conducted by using lattice Boltzmann method (LBM) for different Reynolds numbers. In order to simulate the flow, derivation of macroscopic hydrodynamics equations from the continuous Boltzmann equation need to be performed. Then, the numerical results of shear-driven flow inside square and triangular cavity are compared with results found in literature review. Present study found that flow patterns are affected by the geometry of the cavity and the Reynolds numbers used.

**Keywords:**
Lattice Boltzmann method,
shear driven cavity,
square cavity,
triangular cavity.