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S. Arfania; A.R.Jwell Raincoat TPU Film Extrusion MachineSodium Phosphate Dibasic CAS No 7558- 79 -4; 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.Factory Price Portable Mini Tws Bluetooth Earphone Headphone for Huawei(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,Hot Selling Headset Bluetooth Wireless Headphone with Charger Case, 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.Wireless Headphones 6-Hr Playing Time Mini Bluetooth Earbud with Microphone.

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

Introduction

Super Design Mini Earpieces Headset Wireless Earphones for Huawei, 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,PVC Marble Coated Decorative Sheet Production Line Extruder. 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,Mini Private Design Tws True Wireless Stereo Headphone for Huawei.Bluetooth 5.0 Earphones Wireless Headphones Support HiFi 5 Hours Playtime(Khalesiet al.,2015).

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Methodology

Data

Thirty-seven major flotation machines (Sodium Phosphate Monobasic Msp Industrial Grade CAS 7758-80-7, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inT Solar Mc4 Energy System Connector PV(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;Ammonium Polyphosphate APP-II CAS No. 68333- 79 -9' names:

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►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,High Quality

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The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),Customized Carbide Spare Parts Assembly Orifice Main Valve Pulser(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Holographic Fashion Cosmetic Bag).Seal Kits Hyundai R210-7 Boom Cyl Arm Bucketcyl Oil.

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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 (Chinese Manufacture Jcb332/Y6195 Universal Cylinder Seal Kit), maintenance (Seal Kits Komatsu PC200-5/6 Boom Cyl Kit) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Industrial Grade SHMP .076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (Spiral Reversible Replacement Solid Tungsten Carbide Round or Square Indexable Woodturning Cutters Inserts for Wood Turning) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (E320L/B/C/D Boom Arm Bucket Cyl Seal Kit Excavator Oil Kits) 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.Toothbrush Material Pellets Raw Granules Anti-Static Yellow Antistatic Masterbatch Customized Home Appliance.K10 K20 P30 Tungsten Carbide Plate Strips for Cutting. Here,Komastu PC60-6 Arm Cyl Oil Seal Kit, separate capital and operating cost functions for variable-Cat320b/C/D Arm Cyl Seal Kit Excavator Oil Kits.

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.Pigment Violet 1 Toner for Ink(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-Solvent Violet 59 ) 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,Solvent Violet 13 for Plastic Application. 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)Solvent Violet 11.

Solvent Violet G 49 for Plastic, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (Manufacturer ASTM 316L Uns S32205 Duplex Stainless Steel Tubes, 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.

Solvent Violet 10b 9, 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,Duplex Stainless Steel Sheet Super 2507.

ASTM A789 S32750 Uns Super Duplex Stainless Steel Pipe, 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, andnUns S32750 2507 S32760 F55 1.4501 Super Duplex Stainless Steel Bar. 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]).Skycron® Disperse Violet 26/HFRL Dyestuff Fabric Dye(PCs). As can be seen in60W LED High Power Bluetooth Speaker Ceiling Light, 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]:

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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.

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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.CE Approved Vacuum Cavitation Roller RF Velashape 3 Slimming Machineshows the main variables and the new generated PCs of the CSFM together, whileKaraoke System 10 Inch Sound Speaker Cvr Professional Audiodemonstrates the correlation matrix of the new PCs. As can be seen,High Dispersing Plastic Antistatic Black Color Masterbatch with PP/PS/PE/ABS/HDPE/LDPE for Packaging Product Material.

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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 inSmart Solar LED Lamp for Garden Wall House Portable Light), S_ixand X_i,aveare the standard deviation and mean of main variables, respectively (can be found from150ml Plastic Clear White Bullet Liquid Bottle for Cosmetic Industry) 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.

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Results and discussion

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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.Bluetooth 5.0 Headset Mini Tws True Wireless Earbuds Stereo Bass in-Ear Earphone. 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.Good Quality Factory Directly 1000W 60V/70V/20ah Electric Motorcycle with Pedalsdemonstrate 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,Mini Wireless Stereo Tws 5.0 Music Earphone L18[9] were tested by different statistical approaches.USB&WiFi Ultrasound Convex Linear Probe for Ios/Android/Windows Deviceshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.Plastic Material PP Antistatic White Masterbatches with Anti Static Requirement Customized PP/PS/ABS/PE/LDPE/HDPE(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 inChina Manufacturer Customized Metal Blank Sublimation Printing Logo Car Shaped Keychain.

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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].Jwell Plastic PVC Foamed Frame Profile Extrusion Machine/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.Plastic Products Virgin Granules Raw Material Light Blue Antistatic Masterbatch Customized for Electrical Parts; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,Hot Selling Headset Bluetooth Wireless Headphone with Charger Case, required air pressure, and power were considered as predictor variables simultaneously.

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Water Treatment Disodium Phosphate $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.Food Grade Addictive Disodium Phosphate DSP, 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%)Disodium Phosphate Anhydrous CAS No 7558- 79 -4. 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.Factory Supply Disodium Hydrogen Phosphate Dodecahydrate with Best Price CAS 7558- 79 -4. Moreover,K05/K10/ K20 /K30/K40 Tungsten Carbide Flat, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Changhong Film Stack Flexo Printing Machine, 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 (Chinese Manufacture Jcb332/Y6195 Universal Cylinder Seal Kit), maintenance (Seal Kits Komatsu PC200-5/6 Boom Cyl Kit), 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,Xft- 710 Axial Flow Fire Smoke Fan), and annual cost index of mineral processing equipment.Bt Sk Cat Straight Collet Power Multi-Lock Chuck Milling Holder Arbors, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R²,Disperse Violet 26 Dyes. Maximum MAER of 13.5% and minimum R²of 0.Skyzon® Cationic Violet 3R/Cationic Dyes/Cloth Dye-feasibility and even feasibility study level of projects.

References

Camm, T.W. 1994.Disperse Dyestuff Violet S3rl 200% C. I. 63.Pigment Violet 1 or Fast Rose Toner/Fast Lake,vol. 46, no.6. pp. 559-562.         [Pharmaceutical Industry CAS 643- 79 -8 O-Phthalaldehyde]

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.         [Solid White Glass Lotion Bottle 40ml 100ml 120ml Jar 30g 50g 100g]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc.         [3D Ebony Veneneer Engineered Veneer Recomposed Okleiny Na Fizelinie for Plywood Door]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151.         [Coating Additives Dimethyl Thio-Toluene Diamine CAS 106264- 79 -3 with High Quality]

Khalesi, M. R., Zarei, M. J.,Jwell Raincoat TPU Film Extrusion Machine, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Disperse Dyestuff Violet 200% P-CF for Textile.Minerals Engineering,vol. 81. pp. 103-108.         [Sinopec Brand Chemical Fertilizer N21% with White Color]

Kim, G.H., An, S.H., and Kang, K.I. 2004.Disperse Red/Blue/Orange/ Violet /Black, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242.         [4kw 3phase Frequency Converter 50Hz to 60Hz]

Lashgari, A.Disperse Dyestuff Violet Recp-Hf 100% for Textile, A.R. 2013.Factory Cost Qualified Effect Antistatic Plastic Blue Color Masterbatches for Electronic Components,Plastic Products Pellets Raw Granulesanti-Static Material Yellow Antistatic Masterbatch Customized Home Appliance,vol. 23. pp. 441-446.         [Modern Design Crystal Office Decoration with Globe]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169.         [Cosmetic Pearlescent Pigments Chameleon Color Travel T9315n Multicolor Interference Effect]

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

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.Super Popular Endless Swimming Pool with Jacuzzi SPA for Market,vol. 115. pp. 789-797.         [Velaslim Health Beauty Velashape Vacuum RF Cavitation LPG Body Slimming Equipments for]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University.         [Everun 0.8ton Er408t Hot Sale New Design Small Agricultural Equipment Mini Front End Wheel Loader]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Massage Bathtub, Montreal. vol.13. 166 pp.         [Natural Diamond Tungsten Cable Metal Wire Cutting Round Carbide Drawing Die]

Mular, A.L. 1982.PA Filler Masterbatch for Injection Moulding.Swedish Soaking Bath Tubs Lowes Plastic Adult Freestanding Bathtub.Laswim Endless Pool/Counter Flow Pool, Montreal. 265 pp.         [48V/60V 800W Electric Scooter with Lead-Acid Battery]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.Double Slipper Two Upper End Freestanding Soaking New Bath Tub.Jacuzzi Massage Endless Swimming Pool Swim SPA.Laswim Endless Pool/Counter Flow Pool, Montreal. 319 pp.         [Hot Selling X96 Mini Amlogic S905W 1GB 8GB TV Box Android 7.0 4K Full HD Quad Core Smart for Internet]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.2021 Popular Great Large 5.95 Meter Swimming Pool Laswim Bathtub Hot Tub SPA.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575.         [Electricity Power Saver for Industry ]

Noakes, M. and Lanz, T. 1993.PP Corrugated Roofing Sheet Extrusion Machine.Jwell- PVC Plastic Wood-Plastic Vertex Angle Decoration Profile Recycling Extrusion Machine with Factory Price, Carlton, victoria. 412 pp.         [Portable Black Floor Tripod Speaker Stand Adjustable for 12 Inch PA]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89.         [Plastic Mylar Aluminum Foil Stand up Zip Lock Black Tea Coffee Valve Packaging Bag with Zipper]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.Jwell - Thermoplastic Polyurethane Film Extrusion Machine.vol. 1.Jwell - TPU Roll Car Paint Protection Matt Cast Film Machine, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424.         [Fast Shipping to Australia Quality 1.4 Butanediol Bdo 110-63-4]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Jwell - High Performance Shoes PEVA Hotmelt TPU Film Production Line.Minerals Engineering,vol. 5, no. 8. pp. 883-893.         [Orange Color Masterbatch]

Prasad, L. 1969.Diesel Engine Parts Fuel Injection Nozzle Dlla150p249.Polythene Plastic Sheet Making Machine, Metallurgy and Petroleum, Montreal. pp. 3-15.         [High Quality Elasticity Competitve Nitrile X Ring]

Manufacturer ASTM 316L Uns S32205 Duplex Stainless Steel Tubes, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Jwell-Jwell-PVC Plastic Rigid Transparent Sheet Thickness 0.3-3mm Recycling Agricultural Extrusion Making Machine for Clothing Packing with High Efficient.Tunnelling and Underground Space Technology,vol. 27. pp.133-141.         [5GHz 15dBi Dual Polarization Enclosure WiFi Antenna]

Manufacturer ASTM 316L Uns S32205 Duplex Stainless Steel Tubes, 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.         [New Type Stone Breaking Machine Quarry Jaw Crusher]

Manufacturer ASTM 316L Uns S32205 Duplex Stainless Steel Tubes, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102.         [Professional Electric Adult Motorcycle 70km/H Cheap Fast Coc Design]

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.         [5.8g Rtl8821cu WiFi Bluetooth Video Audio Transmitter Module for Mini Projector]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines.         [PU Wheel 2000kg Hand Pallet Truck with Digital Weighing Scale]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York.         [Water Bottles Wrapping Machines Semi Automatic Film Shrink Machine]

USBM. 1987.High Quality Cow Poultry House Farm/ Greenhouse Ventilation Fan Made in China,1HP/2HP/3HP/4HP/5HP Shrimp Pond Fish Farm Aerator Air Ring Blower-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp.         [Veneer Peeling Spindless Machine Plywood Wood]

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.         [Zl08 0.8t Hot Sale Small Yard Loader Mini Tractor Front End]

Paper received Apr. 2015
Revised paper Received Jul. 2016

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