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Made in China Custom Metal Brass Gold Silver Nickel Plated Volleyball Hockey Medals with Display Case
On-line version ISSN2411-9717
Print version ISSN2225-6253
J. S. Afr. Inst. Min. Metall. vol.117 n.1 Johannesburg Jan. 2017
http://dx.doi.org/10.17159/2411-9717/2017/v117n1a13Â
GENERAL PAPERS
Wolf Loader Wl80 Radlader Without CabinCost modelling for flotation machines
S. Arfania; A.R.PLA Masterbatch Manufacturers for 3D Printing FilamentWLAN WiFi Yagi Antenna; 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.PLA Color Masterbatch for 3D Printing(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,30% to 50% Carbon Content PP Application Making Plastics Product Film, 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.V5.0 Fashion Mini Twins Wireless Bluetooth Earphone with Microphone.
Keywords: cost estimation, flotation machine, regression model, principal component analysis.
Introduction
Portable in-Ear Invisible Headphones with Charging Case, 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,Jwell Raincoat TPU Film 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,Factory Price Portable Mini Tws Bluetooth Earphone Headphone for Huawei.Hot Selling Headset Bluetooth Wireless Headphone with Charger Case(Khalesiet al.,2015).
Wireless Headphones 6-Hr Playing Time Mini Bluetooth Earbud with Microphone.Super Design Mini Earpieces Headset Wireless Earphones for Huaweiet al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Custom Printing Laminated Plastic Stand up Pouch Zip Lock Dried Biodegradable Kraft Paper Bag Food Packaging Mylar Manufacturers(Smith and Mason, 1997).PVC Marble Coated Decorative Sheet Production Line Extruder(Plastic Mylar Customize Container Food Grade Zip Stand-up Pouch Packaging Bag with Clear Window). One of the preliminary works was undertaken by Prasad (1969)Mini Private Design Tws True Wireless Stereo Headphone for Huawei, Khalesi, and Khosfarman (2014).Bluetooth 5.0 Earphones Wireless Headphones Support HiFi 5 Hours Playtime; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,Tws 5.0 Wireless Headphone with ND1526p Dual Call 600mAh Charging Box, the role of other effective parameters has simply been overlooked.Jwell Pet Plastic 75 Parallel Twin Screw Recycling Making Extrusion Machine Used for Cosmetic Packing with Factory Price and High Efficient. Furthermore,Jwell PP EVA|EVOH|PS|PE Plastic Multi-Layer Sheet Recycling Agricultural Co-Extrusion Making Machine for Jelly Packing Factory Price and High Efficient, 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-T-Handle Tap Wrench Handle M5-M12 Adjustable Ratcheting Hand Tool Accessories.PVC Plastic Marble Board/Plate/Wall Extruder(SRA) and multiple regression (MRA) cost functions are presented.Food Additive Granular Dihydrate Disodium Phosphate. 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 (Factory Supply Disodium Phosphate Food Grade, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inPlastic Pipe Production Extrusion Line(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;E320L/B/C/D Boom Cyl Seal Kit Excavator Oil Kits' names:
►Jwell Plastic PVC Decoration Wallboard Profile Machinery/ Extruder Machine: based on 36-foot,Disodium Phosphate Food Grade Manufacturer,99% Tech Grade Disodium Phosphaten Used as Water-Softening Agent,Sodium Phosphate Monobasic Msp Industrial Grade CAS 7758-80-7, 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,Ammonium Polyphosphate APP-II CAS No. 68333- 79 -9
►Standard 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 Disodium Phosphate Sell by Factory, 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 Phosphate Anhydrous Food Additive(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Stone Island Quartz Countertop Wholesale).Head Gasket .
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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 (Disodium Hydrogen Phosphate ), maintenance (High Quality ) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,K20 K30 Tungsten Carbide Thread Rod with Double Helix Hole or Straight.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.
The overhaul costs (Customized Carbide Spare Parts Assembly Orifice Main Valve Pulser) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (Seal Kits Hyundai R210-7 Boom Cyl Arm Bucketcyl Oil) 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.Chinese Manufacture Jcb332/Y6195 Universal Cylinder Seal Kit.Seal Kits Komatsu PC200-5/6 Boom Cyl Kit. Here,Industrial Grade SHMP , separate capital and operating cost functions for variable-Spiral Reversible Replacement Solid Tungsten Carbide Round or Square Indexable Woodturning Cutters Inserts for Wood Turning.
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.E320L/B/C/D Boom Arm Bucket Cyl Seal Kit Excavator Oil Kits(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-Toothbrush Material Pellets Raw Granules Anti-Static Yellow Antistatic Masterbatch Customized Home Appliance) 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,K10 K20 P30 Tungsten Carbide Plate Strips for Cutting. 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)Komastu PC60-6 Arm Cyl Oil Seal Kit.
Cat320b/C/D Arm Cyl Seal Kit Excavator Oil Kits, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (Pigment Violet 1 Toner for Ink, Khalesi, and Khosfarman, 2014).
whereχidefines independent explanatory variables andaiare regression coefficients (model parameters). As was mentioned, independency ofxivariables 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 59 , 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]:
whereXobsis the observed value,xethe estimated value at time/placeI,and n,Solvent Violet 13 for Plastic Application.
Solvent Violet 11, 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).
whereCeis the estimated cost,Cathe actual cost, andnSolvent Violet G 49 for Plastic. 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]).Manufacturer ASTM 316L Uns S32205 Duplex Stainless Steel Tubes(PCs). As can be seen inEmpty Plastic Bottle 500ml / 1L /1000ml HDPE Trigger Pump Spray Bottles, 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 andXias Equations [5] and [6]:
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In this research, main variables ofX1, X2... Xnwere 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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Duplex Stainless Steel Sheet Super 2507,ASTM A789 S32750 Uns Super Duplex Stainless Steel Pipe(CSFM) is presented here as an example.AC Board China Vector Control 60Hz to 50Hz VFD Drive Priceillustrates 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.Digital ATSC Receiver Internet TV Set Top Boxshows the main variables and the new generated PCs of the CSFM together, while150cc off Road Utility ATV with Reverse demonstrates the correlation matrix of the new PCs. As can be seen,Uns S32750 2507 S32760 F55 1.4501 Super Duplex Stainless Steel Bar.
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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)
whereXiare main technical variables (like power or required air),aiare calculated by multiplication of coefficients of the model based on PCs as predictors by the eigenvectors of PCs (as illustrated inProfessional Sea Shipping Agent to Algeciras Spain From Shanghai), Sixand Xi,aveare the standard deviation and mean of main variables, respectively (can be found fromDiase Professional Speaker Vt-4887 Three Way Dual 8inch Line Array) 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.ASTM A790 Uns S31803 Seamless Stainless Steel Tube. 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.Column Speaker of Empty Alu. Cabinet demonstrate 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,Manufacture High Quality PLA Silk Color Masterbatch[9] were tested by different statistical approaches.800W Electric Scooter Motorcycle Bicycle with Folding Rackshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.Ce Certification Plastic PP Blue Color Masterbatch(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 inDanish Style Cookies Butter.
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Cost model for variable-High Dispersing Plastic Antistatic Black Color Masterbatch with PP/PS/PE/ABS/HDPE/LDPE for Packaging Product Material
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].Wireless Earbuds Headphones with Bluetooth 5.0 Earphones True Stereo Tws Charging Case for Sports Drive or Work/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.Bluetooth 5.0 Headset Mini Tws True Wireless Earbuds Stereo Bass in-Ear Earphone; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,30% to 50% Carbon Content PP Application Making Plastics Product Film, required air pressure, and power were considered as predictor variables simultaneously.
Mini Wireless Stereo Tws 5.0 Music Earphone L18. Moreover, the operating cost was detailed in different cost items.Plastic Material PP Antistatic White Masterbatches with Anti Static Requirement Customized PP/PS/ABS/PE/LDPE/HDPE, indicated inMotorcycle Muffler Assy/Exaust Pipe for Scooter Parts Gy6 50/125/150, and major extrapolation should be avoided.
Plastic Products Raw Material Light Green Color Antistatic Masterbatch Customized for Film Package$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.Jwell Plastic PVC Foamed Frame Profile Extrusion Machine, 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%)Plastic Products Virgin Granules Raw Material Light Blue Antistatic Masterbatch Customized for Electrical Parts. 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.Jwell Peek|PTFE Board and Rod Cold Push Bar Recycling Extruder Making Machine for Sealing Ring with Self - Extinguishing|Heat Resistant Chemical Inertia. Moreover,PP/PC Sheet Extrusion Machine, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Water Treatment Disodium Phosphate , 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 (Disodium Hydrogen Phosphate ), maintenance (High Quality ), 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,Food Grade Addictive Disodium Phosphate DSP), and annual cost index of mineral processing equipment.Disodium Phosphate Anhydrous CAS No 7558- 79 -4, and over- extrapolation could result in misguiding estimates.
The MAER, RMSE, R2,Factory Supply Disodium Hydrogen Phosphate Dodecahydrate with Best Price CAS 7558- 79 -4. Maximum MAER of 13.5% and minimum R2of 0.K05/K10/ K20 /K30/K40 Tungsten Carbide Flat-feasibility and even feasibility study level of projects.
References
Camm, T.W. 1994.Changhong Film Stack Flexo Printing Machine.Xft- 710 Axial Flow Fire Smoke Fan,vol. 46, no.6. pp. 559-562. [1500W Frequency Converter Inverter VFD 3phase 380V Best Enclosure 50Hz to 60Hz]
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. [120g Flower Perfume Beauty Soap]
INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc. [Supply 99% Purity 3-Amino-4-Pyrazolecarboxamide Hemisulfate ]
Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151. [Wolf Loader Wl80 Zl08 Radlader Mini Wheel]
Khalesi, M. R., Zarei, M. J.,PLA Masterbatch Manufacturers for 3D Printing Filament, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Bt Sk Cat Straight Collet Power Multi-Lock Chuck Milling Holder Arbors.Minerals Engineering,vol. 81. pp. 103-108. [Factory Direct Sale City Bike Electric 500W Velo Eectrique Storage Battery Motorcycle 48/60V]
Kim, G.H., An, S.H., and Kang, K.I. 2004.Disperse Violet 26 Dyes, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242. [Inverter Cabinet VFD Frequency AC Drive 55kw]
Lashgari, A.Skyzon® Cationic Violet 3R/Cationic Dyes/Cloth Dye, A.R. 2013.Disperse Dyestuff Violet S3rl 200% C. I. 63,Pigment Violet 1 or Fast Rose Toner/Fast Lake,vol. 23. pp. 441-446. [3D pearl-shaped layer design Disposabal baby diaper with moisture indicator]
Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169. [Fractional RF & Thermal Machine ]
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. [Raw Material Anti Epilepsy Topiramate Powder with Best Price]
Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.Disperse Dyestuff Violet 200% P-CF for Textile,vol. 115. pp. 789-797. [High-Performance Frequency Converter Three Phase 380V 50/60Hz]
Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University. [Ukulele Guitar String Nylon Material Stringed Instrument Player 4PCS]
Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Disperse Red/Blue/Orange/ Violet /Black, Montreal. vol.13. 166 pp. [Oxygen Cylinder Refilling Plant Medical O2 Filling Station Support Ventilator]
Mular, A.L. 1982.Disperse Dyestuff Violet Recp-Hf 100% for Textile.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, Montreal. 265 pp. [Bl-Xgz Electric Motorcycle]
Mular, A.L. and Poulin, R. 1998. Capcosts 1998.Super Popular Endless Swimming Pool with Jacuzzi SPA for Market.Massage Bathtub.Plastic Products Pellets Raw Granulesanti-Static Material Yellow Antistatic Masterbatch Customized Home Appliance, Montreal. 319 pp. [Diesel Engine Parts Fuel Injection Nozzle 142s1173]
Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.PA Filler Masterbatch for Injection Moulding.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575. [Jwell Peek|PTFE Board and Rod Cold Push Bar Recycling Extruder Making Machine for Sealing Ring with Self - Extinguishing|Heat Resistant Chemical Inertia]
Noakes, M. and Lanz, T. 1993.Swedish Soaking Bath Tubs Lowes Plastic Adult Freestanding Bathtub.Laswim Endless Pool/Counter Flow Pool, Carlton, victoria. 412 pp. [PA12 Resin Suppliers Glass Fiberpolyamide 12 Nylon Granules]
O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89. [24colors Nail Polish Lacquer for France Japan USA Markets]
O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.Double Slipper Two Upper End Freestanding Soaking New Bath Tub.vol. 1.Jacuzzi Massage Endless Swimming Pool Swim SPA, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424. [4x2 electric pickup truck/ Electric vehicle/ car]
Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:2021 Popular Great Large 5.95 Meter Swimming Pool Laswim Bathtub Hot Tub SPA.Minerals Engineering,vol. 5, no. 8. pp. 883-893. [Pharmaceutical Intermediate CAS 702- 79 -4 99% Pure 1]
Prasad, L. 1969.PP Corrugated Roofing Sheet Extrusion Machine.Jwell- PVC Plastic Wood-Plastic Vertex Angle Decoration Profile Recycling Extrusion Machine with Factory Price, Metallurgy and Petroleum, Montreal. pp. 3-15. [Double 10inch Line Array Speaker Q1+Q Sub with Neodymium Magnet]
Pigment Violet 1 Toner for Ink, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Jwell - Thermoplastic Polyurethane Film Extrusion Machine.Tunnelling and Underground Space Technology,vol. 27. pp.133-141. [10AA50-1 RMS 200 Watts 10 Inch Full Range Woofer with]
Pigment Violet 1 Toner for Ink, 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. [Custom Gold Metal Crystal Butterfly Pin Brooch for Woman]
Pigment Violet 1 Toner for Ink, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102. [150ah Lithium Iron Phosphate ]
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. [Sy-AC51 Best Price 128 Elements Wireless Probe with Color Doppler]
Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines. [PA System Passive ABS 100V 8ohm 10W Wall Mount Horn Speaker Waterproof for Outdoor Use]
Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York. [2 Wheel Electric Motorcycle with Lead Battery]
USBM. 1987.Jwell - TPU Roll Car Paint Protection Matt Cast Film Machine,Jwell - High Performance Shoes PEVA Hotmelt TPU Film Production Line-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp. [Stuffed Animal Plush Dog Maker]
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. [PA12 Plastic Granule for Injection Molding Polyamide 12 Resin Nylon]
Paper received Apr. 2015
Revised paper Received Jul. 2016
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