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Vol. 06, No. 12 [December 2020]

Paper Title :: Analysis of Concentrations of Carbon Monoxide Levels in Mexico City with Probability Distribution Functions and its Analysis of Variance
Author Name :: M. Sc. Zenteno Jiménez José Roberto
Country :: Mexico
Page Number :: 01-11
The Study includes an analysis of Data from 2010 to 2020, it was proposed to obtain the best or best Probability Distribution Functions that Model CO Concentrations in Mexico City, using the following PDF, Gamma Distribution Function, Function of Extreme Value Distribution, T Location Scale Distribution Function and Exponential Distribution Function, to obtain the estimators the Maximum Likelihood and Moment Methods were used and with the help of the Matlab 2020a program, RMSE, MSE, were used to assess the forecast model. Determination Coefficient, Prediction Approach and Approximation Index, an analysis is made to observe its trend within the period using an Analysis of Variance at Daily Concentrations that later corroborating with the official air page of Mexico City.
Keywords: Carbon Monoxide, Probability Distributions, Adjustment Indicators, Analysis of Variance.
[1]. A.J. Jakeman, J.A. Taylor, R.W. Simpson, Modeling distributions of air pollutant concentrations - II. Estimation of one and two parameters statistical distributions, Atmos. Environ., 20 (1986) 2435-2447.
[2]. Berger, A., Melice, J. L. and Demuth, C. L. (1982) Statistical distributions of daily and high atmospheric SO2 – concentrations. Atmospheric Environment. 16 (5), 2863 – 2877
[3]. Data base of CO (RAMA) website of México City http://www.aire.cdmx.gob.mx/
[4]. Georgopoulos, P.G. and Seinfeld, J.H. (1982) ‘Statistical distribution of air pollutant concentration’, Environmental Science Technology, Vol. 16, pp.401A–416A.
[5]. Gumbel, E.J., 1958. Statistics of Extremes. Columbia University Press, New York, p. 164.


Paper Title :: Computed Aided Design and Analysis of Artificial Human Ankle Joint
Author Name :: Syed Sohail Hussain || Dr. Jeremy (Zheng) Li
Country :: United States of America
Page Number :: 12-18
The total ankle arthroplasty (TAA) is an alternative procedure to the arthrodesis in the treatment of advanced arthritis in the ankle joint. And for the ankle joint replacement if damaged or destroyed.The main objective of this project to determine if the destroyed human ankle can be replaced by an artificial ankle joint, which can be suitable for all type of people with more success rate and less failure rate by doing Finite element simulation on the CAD model. Which will give us the basic idea of an impact of different forces on the artificial joint and what it does to it. We must design an artificial ankle for different kind of people depending on their height, weight and model.
The main goal must be that the artificial ankle must be an exact replica of the damaged bone. It should work just like the original bone.
Firstly, there will be brief description of the ankle joint and how it works, by that we can create an artificial joint CAD model. Then using Finite element Method, the simulation is done for it.
[1]. In Vivo Kinematics of the Salto Total Ankle Prosthesis, Filip Leszko, Richard D. Komistek, Mohamed R. Mahfouz, Yves-Alain Ratron, Thierry Judet, Michel Bonnin, Jean-Alain, Colombier and Sheldon S. Lin, Foot Ankle Int 2008 29: 1117.
[2]. Total Ankle Replacement: the Agility LP Prosthesis Rebecca Cerrato, MD*, Mark S. Myerson, MD The Institute for Foot and Ankle Reconstruction at Mercy, 301 St. Paul Place, Mercy Medical Center, Baltimore, MD 21202, USA.
[3]. Total ankle replacement Design evolution and results Alexander VAN DEN HEUVEL, Saskia VAN BOUWEL, Greta DEREYMAEKER.
[4]. Design of An Ankle Implant Using Design for Assembly (DFA) Principles By HA VANYO.
[5]. Andriacchi, TP; Dyrby, CO; Johnson, TS: The Use of Functional Analysis in Evaluating Knee Kinematics. Clinical Orthopaedics and Related Research 410:44 – 53, 2003. http://dx.doi.org/10.1097/ 01.blo.0000062383.79828.f5.


Paper Title :: A 1d Equivalent-Linear Ground Response Analysis of Sand Mixed with Shredded Tire Chips
Author Name :: Surya Kant Arya || Vikrama Pandey
Country :: India
Page Number :: 19-26
This paper presents a comprehensive one-dimensional, equivalent-linear dynamic response analysis of river sand mixed with shredded tire chips, based on a rigorous numerical modelling technique. Due to substantial increase in urbanization and consequent increase in the number of vehicles, a large number of wastetires are accumulated each year. An improper management of the tires generated in this much significant quantity may become hazardous for the environment and therefore, some sustainable techniques to reutilize the waste tires should be given due consideration. In this regard, addition of shredded rubber tires to enhance the dynamic properties of weak or poor soil in seismically prone region may be given due consideration. In the present study, influence of addition of shredded rubber and its consequent impact on the seismic ground response has been studied comprehensively based on a finite element analysis. Results are presented considering different strong ground motion. Parametric study has further been carried out to and results are presented to quantify the influence of significant parameters, such as rubber content (RC), thickness of rubber-sand mixed deposit (H). Acceleration-time history plots are presented at the bottom and top of the rubber-sand deposit. Maximum shear strain and its distribution has also been plotted. The efficacy of addition of rubber on sand to mitigate the seismic hazard has been illustrated.
Keywords: Ground Response Analysis, DEEPSOIL, Rubber mixed sand, Damping ratio, Seismic waves
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[2] K. Kaneda, H. Hazarika, and H. Yamazaki, Numerical simulations of earth pressure reduction using tire chips in sand backfill, J. Appl. Mech., 10, 467-476. https://doi.org/10.2208/journalam.10.467
[3] S.B. Reddy, and A.M. Krishna, Recycled Tire Chips Mixed with Sand as Lightweight Backfill Material in Retaining Wall Applications: An Experimental Investigation, Int. J. of Geosynth. and Ground Eng. 1 (31), 2015. https://doi.org/10.1007/s40891-015-0036-0
[4] G.J., Foose, C.H. Benson and P.J. Bosscher, Sand reinforced with shredded waste tires, J. Geotech. Eng., 122(9), 1996, 760-767, https://doi.org/10.1061/(ASCE)0733-9410(1996)122:9(760)
[5] J.G. Zornberg, A.R. Cabral, and C. Viratjandr, Behavior of tire shred-sand mixtures, Can. Geotech. J., 41(2), 2004, 227-241, https://doi.org/10.1139/t03-086






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