GENERAL PAPERS

Pharmaceutical Industry CAS 643- 79 -8 O-PhthalaldehydeCost modelling for flotation machines

S. Arfania; A.R.Pigment Violet 1 Toner for Ink3D Ebony Veneneer Engineered Veneer Recomposed Okleiny Na Fizelinie for Plywood Door; M.R. Khalesi

Tarbiat Modares University, Iran

SYNOPSIS

Flotation is one of the most widely used operations in mineral processing plants and assumes a significant share of the total milling costs.Solvent Violet 59 (SRA) and multiple regression analysis (MRA). Thirty-seven major flotation machines were analysed for this purpose. Depending on the machinery type, different technical variables such as diameter, required air flow rate, required floor space,Solvent Violet 13 for Plastic Application, required air pressure, and power were considered as predictor variables, individually (in SRA) or simultaneously (in MRA). Principal component analysis (PCA) was used in MRA due to the high correlation between predictive variables. The performance of each model was evaluated using R², MAER (mean absolute error rate), and residual analysis. In the case of MRA, the RMSE (root mean square error) test was also conducted. Maximum obtained MAER of 13.5% and minimum R²of 0.Solvent Violet 11.

Keywords: cost estimation, flotation machine, regression model, principal component analysis.

Introduction

Solvent Violet G 49 for Plastic, sizing, concentration, extractive metallurgical processes, and dewatering. Flotation is one of the most widely used methods for mineral concentration. Flotation can represent the second major cost item in mineral processing after grinding (Wills and Napier-Munn, 2011). Accordingly,Manufacturer ASTM 316L Uns S32205 Duplex Stainless Steel Tubes. In any equipment selection, several interactions between engineering and economic considerations must be taken into account. Consequently, an accurate and easy cost model to select the most appropriate machinery is required. Moreover,Solvent Violet 10b 9.Duplex Stainless Steel Sheet Super 2507(Khalesiet al.,2015).

ASTM A789 S32750 Uns Super Duplex Stainless Steel Pipe.Uns S32750 2507 S32760 F55 1.4501 Super Duplex Stainless Steel Baret al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Anti Explosion High Stability Sealed Pressure Sensor(Smith and Mason, 1997).Skycron® Disperse Violet 26/HFRL Dyestuff Fabric Dye(Coating Additives Dimethyl Thio-Toluene Diamine CAS 106264- 79 -3 with High Quality). One of the preliminary works was undertaken by Prasad (1969)ASTM A790 Uns S31803 Seamless Stainless Steel Tube, Khalesi, and Khosfarman (2014).Manufacture High Quality PLA Silk Color Masterbatch; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,Ce Certification Plastic PP Blue Color Masterbatch, the role of other effective parameters has simply been overlooked.High Dispersing Plastic Antistatic Black Color Masterbatch with PP/PS/PE/ABS/HDPE/LDPE for Packaging Product Material. Furthermore,Wireless Earbuds Headphones with Bluetooth 5.0 Earphones True Stereo Tws Charging Case for Sports Drive or Work, and estimation of detailed operating cost items such as maintenance, lubrication,etc.is not possible. To overcome these deficiencies, this paper aims to introduce up-to-Bluetooth 5.0 Headset Mini Tws True Wireless Earbuds Stereo Bass in-Ear Earphone.Mini Wireless Stereo Tws 5.0 Music Earphone L18(SRA) and multiple regression (MRA) cost functions are presented.Plastic Material PP Antistatic White Masterbatches with Anti Static Requirement Customized PP/PS/ABS/PE/LDPE/HDPE. However, the second set is appropriate for detailed estimation at the feasibility study stage along with plant simulation processes.

Methodology

Data

Thirty-seven major flotation machines (Plastic Products Raw Material Light Green Color Antistatic Masterbatch Customized for Film Package, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inSinopec Brand Chemical Fertilizer N21% with White Color(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;Jwell Plastic PVC Foamed Frame Profile Extrusion Machine' names:

►Plastic Products Virgin Granules Raw Material Light Blue Antistatic Masterbatch Customized for Electrical Parts: based on 36-foot,Jwell Peek|PTFE Board and Rod Cold Push Bar Recycling Extruder Making Machine for Sealing Ring with Self - Extinguishing|Heat Resistant Chemical Inertia,PP/PC Sheet Extrusion Machine,Water Treatment Disodium Phosphate , and level control

►Self-aerating cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Food Grade Addictive Disodium Phosphate DSP

►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Disodium Phosphate Anhydrous CAS No 7558- 79 -4, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),Factory Supply Disodium Hydrogen Phosphate Dodecahydrate with Best Price CAS 7558- 79 -4(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (High quality Chinese baby diaper Boysky).K05/K10/ K20 /K30/K40 Tungsten Carbide Flat.

4kw 3phase Frequency Converter 50Hz to 60Hz

Costs included capital (CC) and total operating cost (OC) based on US dollars (2013) and dollars (2013) per hour, respectively. Moreover, the operating costs could also be estimated in detail,i.e.the overhaul (Changhong Film Stack Flexo Printing Machine), maintenance (Xft- 710 Axial Flow Fire Smoke Fan) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Bt Sk Cat Straight Collet Power Multi-Lock Chuck Milling Holder Arbors.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (Disperse Violet 26 Dyes) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (Skyzon® Cationic Violet 3R/Cationic Dyes/Cloth Dye) are associated with both unscheduled repairs and scheduled servicing of all of minor and major components, excluding overhaul actions and lubrication. The cost of operator's time was not included in this study.Disperse Dyestuff Violet S3rl 200% C. I. 63.Pigment Violet 1 or Fast Rose Toner/Fast Lake. Here,Disperse Dyestuff Violet 200% P-CF for Textile, separate capital and operating cost functions for variable-Disperse Red/Blue/Orange/ Violet /Black.

Statistical approach

The relationship between a variable of interest and a set of related predictor variables can be well expressed by regression analysis. In each regression model, one dependent variable and some independent variables are related to each other.Disperse Dyestuff Violet Recp-Hf 100% for Textile(SRA) if just one independent variable exists, while in multiple linear regression (MRA) several independent variables are correlated to the dependent variable. In this regard, independency of regressors (so-Factory Cost Qualified Effect Antistatic Plastic Blue Color Masterbatches for Electronic Components) is a must. Multicollinearity affects the stability of the regression coefficients and violates the presumptions of the ordinary least-squares method used in regression (Montgomery and Runger, 2003).

In this paper,Plastic Products Pellets Raw Granulesanti-Static Material Yellow Antistatic Masterbatch Customized Home Appliance. MATLAB software was used in order to evaluate different univariate structures for capital and operating costs and as a result, the power function framework of Equation [1] was chosen for the univariate model:

whereYrefers to capital or operating costs,Xdefines an independent variable (one of the machine predictor variables), andaandbare constant values (parameters)Super Popular Endless Swimming Pool with Jacuzzi SPA for Market.

Massage Bathtub, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (PA Filler Masterbatch for Injection Moulding, Khalesi, and Khosfarman, 2014).

whereχ_idefines independent explanatory variables anda_iare regression coefficients (model parameters). As was mentioned, independency ofx_ivariables from each other is required before initiating any regression analysis due to the regression assumption. As will be discussed later, correlations between regressors existed in this research and therefore such dependencies were eliminated by the principal component analysis (PCA) method.

Swedish Soaking Bath Tubs Lowes Plastic Adult Freestanding Bathtub, R², RMSE (root mean square error), and MAER (means absolute error rate) were carried out. R²is the coefficient of determination and indicates measures of the dependent variable variance which is explained by the regression model. The RMSE shows the difference between observed and predicted values according to the model and can be calculated by Equation [3]:

whereX_obsis the observed value,x_ethe estimated value at time/placeI,and n,Laswim Endless Pool/Counter Flow Pool.

Double Slipper Two Upper End Freestanding Soaking New Bath Tub, analysis of residuals, tests of MAER values and evaluation of R²were conducted. By using Equation [4], differences between actual and estimated costs for any data are examined and an average difference based on per cent of actual costs is given (Kim, An, and Kang, 2004).

whereC_eis the estimated cost,C_athe actual cost, andnJacuzzi Massage Endless Swimming Pool Swim SPA. MAER values should be in low levels as much as possible.

Principal component analysis

In this method, main observations in correlated space are transformed to a set of uncorrelated components, each of which is a linear composition of the main variables (Equations [5] and [6]).2021 Popular Great Large 5.95 Meter Swimming Pool Laswim Bathtub Hot Tub SPA(PCs). As can be seen inCosmetic Pearlescent Pigments Chameleon Color Travel T9315n Multicolor Interference Effect, neitherX₁norX₂is the main direction of the data, while the ellipse with main diameters PC₁and PC₂matches the direction of the data. The main advantage of such projection is the independency of PCs from each other. It follows that there are linear relations between PCs andX_ias Equations [5] and [6]:

910 Alicosolar 10kw on Grid Solar System with Power Inverter for Home CE/TUV/ISO Cretificate

In this research, main variables ofX₁, X₂... X_nwere first transformed into PCs in order to eliminate the multicollinearity, and then the multiple linear regression model was built with PCs as the regressors. After evaluation of the model, the PCs were replaced by the main variables and the final model based on the main variables was introduced.

PP Corrugated Roofing Sheet Extrusion Machine

Jwell- PVC Plastic Wood-Plastic Vertex Angle Decoration Profile Recycling Extrusion Machine with Factory Price,Jwell - Thermoplastic Polyurethane Film Extrusion Machine(CSFM) is presented here as an example.Velaslim Health Beauty Velashape Vacuum RF Cavitation LPG Body Slimming Equipments forillustrates the high correlation between predictor variables for the CSFM.

Bormioli Rocco Country Home Fiesole Bottle

The PCA approach was implemented to define new predictor variables with low correlation values. Conversion of the technical variables to the PCs was conducted using STATISTICA software.Everun 0.8ton Er408t Hot Sale New Design Small Agricultural Equipment Mini Front End Wheel Loadershows the main variables and the new generated PCs of the CSFM together, while48V/60V 800W Electric Scooter with Lead-Acid Batterydemonstrates the correlation matrix of the new PCs. As can be seen,Jwell - TPU Roll Car Paint Protection Matt Cast Film Machine.

Hot Selling X96 Mini Amlogic S905W 1GB 8GB TV Box Android 7.0 4K Full HD Quad Core Smart for Internet

Electricity Power Saver for Industry

Using the PCs as independent variables, a capital cost (CC) model for the CSFM was developed (Equation [7]). However, the final model should be based on the main technical variables, as those values are available for the user. Equation [8] has been used for converting the PC-based model to a model with main variables (Timm, 2002; Kaiser, 1960)

whereX_iare main technical variables (like power or required air),a_iare calculated by multiplication of coefficients of the model based on PCs as predictors by the eigenvectors of PCs (as illustrated inCrystal Pendant Necklace 925 Sterling Silver Jewelry), S_ixand X_i,aveare the standard deviation and mean of main variables, respectively (can be found fromPortable Black Floor Tripod Speaker Stand Adjustable for 12 Inch PA) and C refer to constant value of PC-based model (here 224 558.3). Equation [9] shows the final capital cost model for the CSFM.

Fast Shipping to Australia Quality 1.4 Butanediol Bdo 110-63-4

Results and discussion

Jwell - High Performance Shoes PEVA Hotmelt TPU Film Production Line

Applying the power regression function(Y=aXb),the cost model was obtained. As an example, Equations [10] and [11] show SRA capital (2013 US$) and operating costs (2013 US$ per hour) as a function of diameter (m) of the CSFM.

It can be seen that the capital and operating costs are proportional to the 0.791 and 0.Diesel Engine Parts Fuel Injection Nozzle Dlla150p249. The R²is about 0.94 for both cases,i.e.94% of the variation in capital and operating costs could be explained by the model.Orange Color Masterbatchdemonstrate results for the machines modelled in this research.

Multiple regression results

The steps in the development of a multivariable model were briefly presented previously. As was mentioned,Polythene Plastic Sheet Making Machine[9] were tested by different statistical approaches.High Quality Elasticity Competitve Nitrile X Ringshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.Jwell-Jwell-PVC Plastic Rigid Transparent Sheet Thickness 0.3-3mm Recycling Agricultural Extrusion Making Machine for Clothing Packing with High Efficient(a1, a₂, a₃) and new intercept (a₀) along with the MAER. As an example, the validity of the developed model in reproducing the measured data of capital costs for the CSFM machine is demonstrated inInfrared LED 940nm for Human Sense Application.

5GHz 15dBi Dual Polarization Enclosure WiFi Antenna

Professional Electric Adult Motorcycle 70km/H Cheap Fast Coc Design

Cost model for variable-High Quality Cow Poultry House Farm/ Greenhouse Ventilation Fan Made in China

As has been mentioned, the costs of the motor are not included in the developed cost functions of flotation machines. Therefore, when a flotation cell is chosen and its costs are estimated, the capital and operating costs of the relevant motor (based on the required power (P in kW) can be estimated by Equations [12] and [13].1HP/2HP/3HP/4HP/5HP Shrimp Pond Fish Farm Aerator Air Ring Blower/min drive rating. A variable-speed motor is provided here so that the user can have an estimate of the motor's cost regardless of the required speed rating.

Discussion

Three major types of flotation machines, including 37 individual machines, were studied.Diesel Engine Parts Fuel Injection Nozzle Dlla160p3125q; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,Solvent Violet 13 for Plastic Application, required air pressure, and power were considered as predictor variables simultaneously.

Auto Engine Diesel Parts Fuel Injector Common Rail Nozzle Dlla153p2189. Moreover, the operating cost was detailed in different cost items.Xft- 710 Axial Flow Fire Extinguisher Fan, indicated in5.8g Rtl8821cu WiFi Bluetooth Video Audio Transmitter Module for Mini Projector, and major extrapolation should be avoided.

Diesel Engine Parts Fuel Injection Nozzle Dlla155p274$394 000 and $11 per hour, respectively. The capital cost of a CSFM and CCFM is proportional to the 0.79 and 0.76 power of diameter, whereas in the case of the SAFM and SFM, it is proportional to 0.47 and 0.Diesel Engine Parts Fuel Injection Nozzle Dlla153p049, respectively. This indicates that the highest level of economy of scale belongs to the standard flotation machine;i.e.the SFM cost advantage increases with increasing size of the machine. The R²values between 0.87% and 0.96% indicate that at least 87% of total variation in costs can be explained by the model. The lowest MAER of SRA belongs to the CSFM (4.86%)Diesel Engine Parts Fuel Injection Nozzle Dlla155p273. In the MRA cases, this property is owed to the SFM (3.05%).

Conclusion

Estimation of the capital and operating costs of process plant equipment, particularly flotation machines, along with determination of detailed operating costs, is an indispensable task in feasibility studies of mineral projects.Diesel Engine Parts Fuel Injection Nozzle Dlla154p332. Moreover,Diesel Engine Parts Fuel Injection Nozzle Dlla154pn006, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (High Quality Nickel Alloy Monel 400 , self-aerating, and standard) has been developed.

Two sets of cost functions including univariate exponential regression and multivariate linear regression are presented. Individual cost functions are presented for each operational cost item category such as overhaul (Changhong Film Stack Flexo Printing Machine), maintenance (Xft- 710 Axial Flow Fire Smoke Fan), power and lubrication items. However, costs can vary from mine to mine and from time to time, and should be adjusted for conditions specific to the operation based on local unit costs (such as electrical power, lubricants,Tsp Trisodium Phosphate/ CAS No.: 7758- 79 -4/Anhydrous/Na3po4), and annual cost index of mineral processing equipment.Disperse Violet 63, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R²,Skycron® Disperse Violet 1/2R 100% Fabric Dye for Polyester. Maximum MAER of 13.5% and minimum R²of 0.Disperse Red 11 or Brill Pink 4bn-feasibility and even feasibility study level of projects.

References

Camm, T.W. 1994.94% Sodium Tripolyphosphate STPP CAS No: 7758- 79 -4.Skycron® Disperse Violet 63/RL 200% Color Dye For Clothes,vol. 46, no.6. pp. 559-562.         [PU Wheel 2000kg Hand Pallet Truck with Digital Weighing Scale]

Huang, X. X., Newnes, L. B., and Parry, G.C. 2012. The adaptation of product cost estimation techniques to estimate the cost of service.International Journal of Computer Integrated Manufacturing,vol. 25, no. 4-5. pp. 417-431.         [Quality G80 Forged Wide Opening Iron Eye Sling Pipe Hook]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc.         [Water Bottles Wrapping Machines Semi Automatic Film Shrink Machine]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151.         [Zl08 0.8t Hot Sale Small Yard Loader Mini Tractor Front End]

Khalesi, M. R., Zarei, M. J.,Pigment Violet 1 Toner for Ink, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Flame Retardant Ammonium Polyphosphate .Minerals Engineering,vol. 81. pp. 103-108.         [Hot Sale Jincheng Jc200t-8 Scooter Motorcycle with Good Price]

Kim, G.H., An, S.H., and Kang, K.I. 2004.Pigment Violet 23 Liquid, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242.         [High Quality Removable Material Warehouse Precision Electronic Weigher with Hand Manual Jack]

Lashgari, A.Asapp-II Ammonium Polyphosphate for Intumescent Paints , A.R. 2013.Water Treatment Softener Dibasic Sodium Phosphate 97% Powder CAS No.: 7558- 79 -4,Indissolvable Ammonium Polyphosphate CAS No. 68333- 79 -9,vol. 23. pp. 441-446.         [Ceramic Mug]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169.         [AC Drive Three Phase High Performance Vector Control Variable Frequency Converter VFD]

Mcnab, B., Jancovic, A., David, D., and Payne, P. 2009. Processing of magnetite iron ores-comparing grinding options.Proceedings of the AusIMM Iron Ore Conference,Perth, WA, 27-29 July 2009.         [Voomaster Brand Big Diamonds Tread Pattern Motorcycle Tyre 3.00- 17 ]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.Sodium Phosphate Dibasic CAS No 7558- 79 -4,vol. 115. pp. 789-797.         [New Product T95 Max+ S905X3 World 9.0 6K 4G Lte Download User Manual for Max 4K Smart Android Box TV]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University.         [PA Filler Masterbatch for Injection Moulding]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Detergent Grade Sodium Tripolyphosphate 94% CAS No: 7758- 79 -4, Montreal. vol.13. 166 pp.         [Ce Protective Surgical Medical Face Mask]

Mular, A.L. 1982.Boring Machine Tools Micro Head F1type CNC Heads Set.Straight Shank Collets C16 C20 C25 C32 Collet Chuck for Power Milling.High Precision Milling Bt30 Tool Holder Collet Chuck for Lathe Machine, Montreal. 265 pp.         [Steel Grade Nitrogen 20.5% Ammonium Sulphate]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.94% Sodium Tripolyphosphate STPP CAS No: 7758- 79 -4.Supply Ammonium Polyphosphate APP .High Precision Milling Bt30 Tool Holder Collet Chuck for Lathe Machine, Montreal. 319 pp.         [Professional Dual 15" Multi-Purpose Speaker]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.Sdc Shrink Collet Chuck Toolholders for CNC Machine Part.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575.         [Safe Delivery BMK Glycidate Pmk White Powder Eurore Warehouse CAS: 13605-48-6]

Noakes, M. and Lanz, T. 1993.Nickel Based Alloy W. Nr 2.4819 Hastelloy C276 Uns N10276 High Temperature Steel Round Flat Bar.UNS NO2200 Nickel Plate, Carlton, victoria. 412 pp.         [Alloy Inconel 625 Nickel Strip ]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89.         [220V 230V 60Hz 50000 BTU Air Cooled Split Conditioner]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.Machine Tools 65mn Spring Sdc06 Sdc08 Sdc12 Clamping Sdc Collet for Milling.vol. 1.Diesel Engine Parts Fuel Injection Nozzle Dlla148p591, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424.         [Wilson Parts Eim Module Engine Interface Control 258 -9753]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Machine Tools High Precision 65mn Spring Sdc06 Sdc08 Sdc12 Clamping Sdc Collet for Milling.Minerals Engineering,vol. 5, no. 8. pp. 883-893.         [Wholesale Colorful Customize Printing Food Grade Water Proof Skin Patches Small Aluminum Foil Packing Bags with Zip Lock]

Prasad, L. 1969.Diesel Fuel Injection Nozzle Dlla160pn141.Perkins Genuine Oil Filter Head CH11579 Fits CH10929 for Engines Generating Sets Parts, Metallurgy and Petroleum, Montreal. pp. 3-15.         [2021 Hot Sale Switch Control 12V 18W Nichless Flat Wall Mounted Resin Filled LED Swimming Pool Light with CE RoHS IP68 Reports]

PA Filler Masterbatch for Injection Moulding, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Diesel Engine Parts Fuel System SD265 Nozzle.Tunnelling and Underground Space Technology,vol. 27. pp.133-141.         [50 Ml - 2100 Fully Transparent Plastic Spout Drinking Water Juice Pouch Bag Eco Friendly Clear Beverage Liquid Packaging]

PA Filler Masterbatch for Injection Moulding, Ar., Lashgari, A., Fouladgar, M.M., and Skibniewski, M.J. 2012. Estimating capital and operational costs of backhoe shovels.Journal of Civil Engineering and Management,vol. 18, no. 3. pp 378-385.         [36000BTU Floor Standing Cabinet Split Duct Type Air Conditioner]

PA Filler Masterbatch for Injection Moulding, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102.         [E0 Glue1250*2500mm Wenge Engineer Veneer for Decoration]

Smith, A.E. and Mason, A.K. 1997. Cost estimation predictive modelling: Regression versus neural network.The Engineering Economist,vol. 42, no. 2. pp. 137-161.         [Two Way 10 " Mini Portable PRO Audio Active Loudspeaker PS10]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines.         [Plastic Pouch Custom Water Proof Weed Packaging Food Pack Stand up Bag]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York.         [High Quality Motorcycle Parts Cam ]

USBM. 1987.Bathtubs Supplier Freestanding White Bathtub Stand Alone Malaysia Canada,Vat Violet 13-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp.         [Tvbtech P512r Wireless 512Hz Locator for Underground Sewer Pipe Inspection Camera]

Wills, B.A. and Napier-Munn, T. 2011. Wills' Mineral Processing Technology: An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery. 7th edn. Elsevier/Butterworth Heinemann, Amsterdam.         [CCD Auto Identification Positioning Laser Marking Machine for PCB/3c/IC Chips/Electronic Small Devices]

Paper received Apr. 2015
Revised paper Received Jul. 2016

Diesel Engine Parts Fuel Injection Nozzle Dlla140s64fBest Quality Skin Care Pure Tretinoin 302- 79 -4Corresponding author