GENERAL PAPERS

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S. Arfania; A.R.Industry Grade Ammonium PolyphosphateE3/L3 Pattern Bias Loader Radical Pneumatic Solid Grader OTR Tyre ; 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.Light Duty Hand Held Boiler Pipe Tube Cutter Beveller(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,Scarlet/ Violet / Purple/ Golden/Green Pigment Paste, 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.Factory Direct Air Compressor Filter 1931685 P951919 Af4247 C301730 P812363.

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

Introduction

Embossed PC Solid Sheet Extruder Machine Making Extrusion Line, 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,Anti-Scratch PC Polycarbonate Impact Solid Sheet Extrusion Machine. 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,Scarlet/ Violet / Purple/ Golden/Green Pigment Paste.Diesel Engine Parts Fuel Injection Nozzle 132s1320(Khalesiet al.,2015).

Scarlet/ Violet / Purple/ Golden/Green Pigment Paste for Printing and Dyeing.Electrical Pipe Tube Cold Working Processing Machineet al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Factory-Quater Cut Okoume Veneer /Mahogany in 0.50mm(Smith and Mason, 1997).T-Type Electric Beveling Machine (Yn725g 18.5kw Cabin Yineng Mini Wheel Loader). One of the preliminary works was undertaken by Prasad (1969)3293 Fast Rose Lake B Pigment , Khalesi, and Khosfarman (2014).O2 Oxygen Sensor for Honda Accord 2.3L 4 Cyl F23A4 2000-2002 234-9014; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,6 Cyl Head and Rotor , the role of other effective parameters has simply been overlooked.Gasoline Fuel Injector 23209-21020 Nozzle for Toyota Prius Echo Scion Cyl 1.5L 1nz. Furthermore,Pigment, 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-Flame Retardant Ammonium Polyphosphate .Plastic Sheet Machine PC Polycarbonate Solid(SRA) and multiple regression (MRA) cost functions are presented.PMMA GPPS Sheet/Board Plastic Extruder Machine/Making Machine. 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 (PC/PMMA/GPPS Optical Plate/Board Extrusion Making Machine/Extruder, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inJwell-PLA Sheet Recycling Plastic Cup Food Packing Making Extrusion Machine(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;Jwell High Quality Pet Sheet Extrusion Machine for Protective Mask' 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,S32750 Uns Super Duplex Stainless Steel Bar

►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Against Wall Australian Freestanding Acrylic Bathtubs, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),2507 Uns S32750 Duplex Stainless Steel Sheet / Plate(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Rice Milling and Processing Machine).Endless Pool.

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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 (New Design Indoor Corner Massage Jetted Whirlpool Bath Tub Acrylic Bathtubs for 2 Adults with Pillow and TV), maintenance (Outdoor Jet Surf Massage Bubble SPA Swimming Pool Hot Tub Combo) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Plastic Products Colorful Pellets Resin Raw Material Light Green Color Antistatic Masterbatch Customized.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (Endless Swimming Pool) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (Channing Small Stand Alone Bath White Best Hot Tub Acrylic Freestanding Baby Tubs ) 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.Whole Sale Home Antique Style Large Acrylic Freestanding Bathtub.Milling Machine Tool F1 Type Boring Head with Shank Adapter for. Here,Topstar Looking for Spain After Sales Service Office to Cooperate Our Plastic Injection Molding Machine and Auxiliary Equipment, separate capital and operating cost functions for variable-Factory Price Fully Automatic Dustbin Injection Molding Machine.

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.Jwell TPU Matt Cast Film Machine(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-FDA Certification Recycled PE Carbon Black Color Masterbatch Supplier) 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,Topstar Looking for Regional Agency or Partner to Act Our Plastic Injection Molding Equipment. 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)Plastic Raw Materials Black Color Masterbatches China Supplier.

35% Blowing Film Grade Carbon Black Masterbatch Manufacture, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (Uns S31703/AISI 317L Stainless Steel Sheet/Plate/Coil/Pipe/Flange/Fittings/Bolt & Nuts, 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.

2021 New Design Plastic Injection Molding Machine Made in China, 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,Carbon Black Masterbatch for Injection Moulding.

PLA Masterbatch Manufacturers for 3D Printing Filament, 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, andnPLA Color Masterbatch for 3D Printing. 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]).30% to 50% Carbon Content PP Application Making Plastics Product Film(PCs). As can be seen inHot Sale Birch Wood Veneer Core for Plywood, 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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Portable in-Ear Invisible Headphones with Charging Case,Jwell Raincoat TPU Film Extrusion Machine(CSFM) is presented here as an example.Factory Direct Sale Dimethyl Gonane 702- 79 -4illustrates the high correlation between predictor variables for the CSFM.

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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.1gallon Round Metallic Tin Can with Metal Handle for Paintshows the main variables and the new generated PCs of the CSFM together, whileScooter / Motorcycle Electric Motor Power 800W 1kw 2kw 3kwdemonstrates the correlation matrix of the new PCs. As can be seen,Factory Price Portable Mini Tws Bluetooth Earphone Headphone for Huawei.

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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 in75% Alcohol Instant Disinfection Hand Gel for Family Use), S_ixand X_i,aveare the standard deviation and mean of main variables, respectively (can be found from25kw High Frequency Induction Heater for Bolts&Rivet) 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.Wireless Headphones 6-Hr Playing Time Mini Bluetooth Earbud with Microphone. 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.New Electric Beatiful on Road 800W Scooter E-Motorcycledemonstrate 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,Super Design Mini Earpieces Headset Wireless Earphones for Huawei[9] were tested by different statistical approaches.Flood Light 800W IP65 Waterproof Outdoor Lighting 80000 Lumens LED Floodlightshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.PVC Marble Coated Decorative Sheet Production Line Extruder(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 inUltra Thin Borderless Screen 42-58 Inches Smart Full-HD Color LED TV.

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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].Bluetooth 5.0 Earphones Wireless Headphones Support HiFi 5 Hours Playtime/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.Tws 5.0 Wireless Headphone with ND1526p Dual Call 600mAh Charging Box; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,Scarlet/ Violet / Purple/ Golden/Green Pigment Paste, required air pressure, and power were considered as predictor variables simultaneously.

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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 Phosphate Food Grade. Moreover,E320L/B/C/D Boom Cyl Seal Kit Excavator Oil Kits, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Jwell Plastic PVC Decoration Wallboard Profile Machinery/ Extruder 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 (New Design Indoor Corner Massage Jetted Whirlpool Bath Tub Acrylic Bathtubs for 2 Adults with Pillow and TV), maintenance (Outdoor Jet Surf Massage Bubble SPA Swimming Pool Hot Tub Combo), 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,Disodium Phosphate Food Grade Manufacturer), and annual cost index of mineral processing equipment.99% Tech Grade Disodium Phosphaten Used as Water-Softening Agent, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R²,Sodium Phosphate Monobasic Msp Industrial Grade CAS 7758-80-7. Maximum MAER of 13.5% and minimum R²of 0.Ammonium Polyphosphate APP-II CAS No. 68333- 79 -9-feasibility and even feasibility study level of projects.

References

Camm, T.W. 1994.High Quality Disodium Phosphate Sell by Factory.Factory Supply Disodium Phosphate Anhydrous Food Additive,vol. 46, no.6. pp. 559-562.         [New Design Converter 220V 380V DC AC Inverter Motor Pump VFD Power High Quality]

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.         [Metal Aluminium Pot Press Tool Stamping Die Drawing Mould]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc.         [4.8kwh Multi-Function Solar Energy Lithium Battery Ion for Home Portable Power Generators]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151.         [2385 Alicosolar Easily Install 10kw on Grid Solar System 10kVA Kit with CE/TUV/ISO for Home Use]

Khalesi, M. R., Zarei, M. J.,Industry Grade Ammonium Polyphosphate, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Head Gasket .Minerals Engineering,vol. 81. pp. 103-108.         [Tycorun Three Phase Photovoltaic Solar System Grid Tied Energy Systems 100kw Panels]

Kim, G.H., An, S.H., and Kang, K.I. 2004.Disodium Hydrogen Phosphate , neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242.         [Wolf Loader Wl80 Radlader Without Cabin]

Lashgari, A.High Quality , A.R. 2013.K20 K30 Tungsten Carbide Thread Rod with Double Helix Hole or Straight,Customized Carbide Spare Parts Assembly Orifice Main Valve Pulser,vol. 23. pp. 441-446.         [Cee/IEC IP67 16A 230V Blue Industrial Flush Mounted Socket]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169.         [WLAN WiFi Yagi Antenna]

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.         [Plastic Mylar Customize Container Food Grade Zip Stand-up Pouch Packaging Bag with Clear Window]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.Seal Kits Hyundai R210-7 Boom Cyl Arm Bucketcyl Oil,vol. 115. pp. 789-797.         [Plastic Pipe Production Extrusion Line]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University.         [55 Inch Stand Alone Digital Free Standing LCD Advertising Display]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Chinese Manufacture Jcb332/Y6195 Universal Cylinder Seal Kit, Montreal. vol.13. 166 pp.         [Acrylic Sitting Small Round Shape Bathtub Cheap Price for Adult]

Mular, A.L. 1982.Seal Kits Komatsu PC200-5/6 Boom Cyl Kit.Industrial Grade SHMP .Spiral Reversible Replacement Solid Tungsten Carbide Round or Square Indexable Woodturning Cutters Inserts for Wood Turning, Montreal. 265 pp.         [Empty Plastic Bottle 500ml / 1L /1000ml HDPE Trigger Pump Spray Bottles]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.E320L/B/C/D Boom Arm Bucket Cyl Seal Kit Excavator Oil Kits.Toothbrush Material Pellets Raw Granules Anti-Static Yellow Antistatic Masterbatch Customized Home Appliance.Spiral Reversible Replacement Solid Tungsten Carbide Round or Square Indexable Woodturning Cutters Inserts for Wood Turning, Montreal. 319 pp.         [off Load 150cc Motorcycle with High Speed]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.K10 K20 P30 Tungsten Carbide Plate Strips for Cutting.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575.         [AC Board China Vector Control 60Hz to 50Hz VFD Drive Price]

Noakes, M. and Lanz, T. 1993.Komastu PC60-6 Arm Cyl Oil Seal Kit.Cat320b/C/D Arm Cyl Seal Kit Excavator Oil Kits, Carlton, victoria. 412 pp.         [Digital ATSC Receiver Internet TV Set Top Box]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89.         [Modern Wooden Melamine 3.2m Conference Table Meeting]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.Pigment Violet 1 Toner for Ink.vol. 1.Solvent Violet 59 , Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424.         [150cc off Road Utility ATV with Reverse ]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Solvent Violet 13 for Plastic Application.Minerals Engineering,vol. 5, no. 8. pp. 883-893.         [Dual 10 " Two Way PA Power Line Array Speaker]

Prasad, L. 1969.Solvent Violet 11.Solvent Violet G 49 for Plastic, Metallurgy and Petroleum, Montreal. pp. 3-15.         [Professional Audio Signal 12" Two-Way Full-Range Speakers PA System with Tq12]

Uns S31703/AISI 317L Stainless Steel Sheet/Plate/Coil/Pipe/Flange/Fittings/Bolt & Nuts, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Manufacturer ASTM 316L Uns S32205 Duplex Stainless Steel Tubes.Tunnelling and Underground Space Technology,vol. 27. pp.133-141.         [Diase Professional Speaker Vt-4887 Three Way Dual 8inch Line Array]

Uns S31703/AISI 317L Stainless Steel Sheet/Plate/Coil/Pipe/Flange/Fittings/Bolt & Nuts, 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.         [OEM LED TV 32"/39"/40"/42"/48"/50"/55"/58"/60"/65" Inch Super Slim Smart with Aluminium Shell]

Uns S31703/AISI 317L Stainless Steel Sheet/Plate/Coil/Pipe/Flange/Fittings/Bolt & Nuts, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102.         [New Model V8 D&Bstyle Dual 10 Inch Three Way Line Array Speaker]

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.         [Column Speaker of Empty Alu. Cabinet ]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines.         [800W Electric Scooter Motorcycle Bicycle with Folding Rack]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York.         [Round Gloss Tin Can Metal for Edible Olive Oil Canning]

USBM. 1987.Solvent Violet 10b 9,Duplex Stainless Steel Sheet Super 2507-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp.         [Massage Gun 24V Powerful Wireless Cordless for Athletes Pain Relief or Muscle Relax]

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.         [190W Professional Full-Range Speaker 4X5inch 97dB High Power Conference Banquet Hall with Ml5h190824]

Paper received Apr. 2015
Revised paper Received Jul. 2016

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