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Easy Installation Paddy Rice Mill Processing Machinery
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
AC Fan Frequency Inverter 3pH 7.5kwCost modelling for flotation machines
S. Arfania; A.R.Pharmaceutical Powder Vitamin a Acid /Retinoic Acid/ Tretinoin for Skin CAS 302- 79 -420W/30W/50W/70W/100W White/Black/Color Fiber Laser Marking Machine Price /Fiber Engraver/Laser; 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.Cosmetic Raw Material Powder CAS 20449- 79 -0 Pure Bee Venom/Melittin/Melitten(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,Pharmaceutical Chemicals Cefodizime Sodium CAS 86329- 79 -5, 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.Hot Selling Ceftriaxone Sodium CAS 104376- 79 -6 Top Quality.
Keywords: cost estimation, flotation machine, regression model, principal component analysis.
Introduction
99% High Quality Nootropics Drugs Huperzine a 102518- 79 -6 Hupa USA Factory Fast Delivery, 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 Supply Poly L-Lactic Acid with Lowest Price Raw Material Bulk 79 -33-4 for Food Additives. 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,Crovell Factory Supply High Quality CAS 79 -57-2 Oxytetracycline.Fast Delivery CAS 525- 79 -1 6-Furfurylaminopurine 99%(Khalesiet al.,2015).
Peptide Cosmetics CAS 155149- 79 -4 Capixyl.China O-Phthalaldehyde Opa CAS 643- 79 -8 Raw Crystal 643798 Supplieret al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Industry Grade Ammonium Polyphosphate(Smith and Mason, 1997).100% Copper Wire St-1kw Single Phase Dynamo Factory Price(2021 Best Sale 150cc Adults 4 Wheeler Petrol Power Racing Quad). One of the preliminary works was undertaken by Prasad (1969)China Supplier Antioxidants Powder of Propyl Gallate CAS: 121- 79 -9, Khalesi, and Khosfarman (2014).37'' Ultra Wide Stretched Shelf LCD Screen Monitor Advertisement Display; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,49" 450nits LG panel advertising LCD screen , the role of other effective parameters has simply been overlooked.aluminium LCD wall panel surveillance flat display. Furthermore,3X3 LCD wall panel surveillance digital display screen, 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-AV input LCD wall panel 49inch surveillance monitors.LG panel 49" advertising rack (SRA) and multiple regression (MRA) cost functions are presented.55inch wall mount LCD panel surveillance LED video. 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 (Two-Way 10inch Karaoke Full Range Speaker F10+ PA Horn, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inPlastic HDPE Pipe Production Line(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;55 Inch LCD Video Wall Display with Controller' 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,Local Anesthetic Cinchocaine CAS85- 79 -0 for Pain Killer
►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Professional Sound System 10'' PRO Neodymium Line Array PA Audio System., blowers, and launders.
The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),10inch Loudspeaker PA Speaker PRO Audio(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Felt Back PVC Flooring Export to Middle East High Quality Wood Design Vinyl Rolls).10 " Professional Home Theater Stage Performance Audio Video PA Trolley IR Bluetooth Active Speaker with Multimedia Heavy Bass and Big Power.
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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 (10 Inch Powerful PRO Wood PA Bluetooth Audio Mixer Speaker), maintenance (Single 10 Inch Active Speaker PS10r2 PA System) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Professional Audio Speaker Dual 10 Inch Neodymium Line Array.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.
The overhaul costs (Stand up Plastic Bag with Zipper Aluminum Laminated Container Food Packaging) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (Food Grade Packaging Custom Print Laminated Stand up Bag) 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 Custom Print and Different Color Food Packaging Stand up Pouch Bags with Zipper Window.Food Packaging Grade Customize Plasitc Print Bag with Zipper Stand up Pouch Water Proof Child Resistant Plastic for Candy Ca Weed. Here,Food Packaging Bag, separate capital and operating cost functions for variable-High Quality Coffee /Candy/Weed /Hemp Plastic Container.
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.Water Proof Child Coffee /Candy/Weed Plastic Container(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-10 Inch Coaxial Speaker Professional Driver " Line Array Subwoofer) 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,Electronics ESD Moisture Barrier Aluminum Foil Bag Shielding Anti-Static Plastic for Electronic Parts. 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)Donbn Dz- 10 Two Way Full Range Professional KTV Speaker.
Professional Speaker Double 10'' Neodymium Line Array, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (10'' Neodymium Coaxial Speaker. 250W & 60W Power Rating PA Audio., 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.
4-Chloro-4'-Methylbenzophenone High Quality Products CAS 5395- 79 -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]:
whereXobsis the observed value,xethe estimated value at time/placeI,and n,55" HD 1080P Commercial LED Screen Video Wall LCD Display.
A+ grade LCD wall panel surveillance high brightness screen, 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, andnSeamless 1920*1080 Pixel High Resolution LCD Monitor 49". 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]).PA 10 -35W 5.25'' Sound Ceiling Speaker(PCs). As can be seen inPortable in-Ear Invisible Headphones with Charging Case, 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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46''55''65''75'' High Quality Double Sided LCD Touch Screen Monitor Bus Shelter Advertising Media Player,High Purity Amino Acid L-Arginine Powder(CSFM) is presented here as an example.Engineered Ebony Veneer Ecowood Reconstituted Macassar Quarter Cutillustrates 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.Mylar Child Resistant Waterproof Plastic Bag with Zippershows the main variables and the new generated PCs of the CSFM together, whileMaintence Grease Gun 21V LCD Real Time Information Reading Hand Tooldemonstrates the correlation matrix of the new PCs. As can be seen,High Efficiency 10inch Transducers PS10 for Best PA Speaker.
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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 inT Type Normal Dome Glass Lid for Pan or Pots), Sixand Xi,aveare the standard deviation and mean of main variables, respectively (can be found fromOEM 1500W EEC Electric Scooter ) 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 0.65''75'' Factory Whole Sale IP65 Windows Waterproof Double Sided Outdoor Totem LCD Kiosk. 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.Dah Complete on Grid Solar System Easy Install 30kw 50kw Tied Powerdemonstrate 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,10 Inch High-Power Professional PA Subwoofer Speaker[9] were tested by different statistical approaches.Velashape Slimming Cellulite Removal Body Sculpting Fat Machineshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.Professional 10 Inches Rcf Aluminum PA Speaker Frame(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 inFancy Blackout Graceful Pretty 100% Polyester Living Room Curtain Textile.
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Cost model for variable-Peq- 10 Dwb PA Speaker with Class-Ab Mono Amplifier Portable Bluetooth
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].PRO Audio 10'' Neodymiun Line Array Speaker System Falante/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.Dual 10 " Outdoor Wooden PA System Bluetooth Trolley Smart Speaker; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,Pharmaceutical Chemicals Cefodizime Sodium CAS 86329- 79 -5, required air pressure, and power were considered as predictor variables simultaneously.
Double 10inch Line Array System Box . Moreover, the operating cost was detailed in different cost items.Mylar Laminated Ziplock Plastic Stand-up Food Packaging Bag for Nut/Gel/Food/Vitamin, indicated in2.5L-25L Square Metal Tin Can with Lid for Paint Glue Adhesives Packing, and major extrapolation should be avoided.
PA /CPP Rotort Pouch$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.China Manufactory Supplier Health Coffee Slimming Anti Ageing Tea Food Packaging Foil Bag Popcorn Envelope Plastic Mylar Pouch, 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%)Chin Top Supplier Supply L- . 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.Pharmaceutical Industry CAS 643- 79 -8 O-Phthalaldehyde. Moreover,Analgesic Drug Medicine Raw Material 99% Pure API Powder CAS 15307- 79 -6 Diclofenac Sodium with Best Price, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (CAS 79 -14-1 70% Glycolic Acid Powder, 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 (10 Inch Powerful PRO Wood PA Bluetooth Audio Mixer Speaker), maintenance (Single 10 Inch Active Speaker PS10r2 PA System), 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,Anti-Wrinkle Cosmetic Grade PRO-Xylane CAS-439685- 79 -7), and annual cost index of mineral processing equipment.Professional Supplier Disodium Glycyrrhizin 71277- 79 -7 Food Sweetener Exporter, and over- extrapolation could result in misguiding estimates.
The MAER, RMSE, R2,Meeting Room/Entertainment Room/Home Cinema Professional Audio Coaxial Full Range Speaker. Maximum MAER of 13.5% and minimum R2of 0.Raw Material 99% Tretinoin Powder/Retinoic Acid CAS 302- 79 -4-feasibility and even feasibility study level of projects.
References
Camm, T.W. 1994.Bloom Tech API Ceftriaxone Sodium 104376- 79 -6.St-10 10kw St-12 12kw St-15 15kw St-20 20kw Generator Alternator,vol. 46, no.6. pp. 559-562. [Motorcycle with Dryweight 120-220kg]
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. [IP67 Female Socket with Interlock & Switch DIN Installation Rail]
INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc. [Professional Self-Powered Subwoofer DSP Function Indoor Outdoor PA System Bass Speaker with Vk10SA19729]
Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151. [Stadium Banquet Hall Theater PRO Audio PA Speaker Line Array System]
Khalesi, M. R., Zarei, M. J.,Pharmaceutical Powder Vitamin a Acid /Retinoic Acid/ Tretinoin for Skin CAS 302- 79 -4, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Generator Automatic Controller Eim 258 -9754 Engine Interface Module.Minerals Engineering,vol. 81. pp. 103-108. [Bulksupplement Vitamin a Acetate 0.5miu Ws Feed Grade CAS No 127-47-9]
Kim, G.H., An, S.H., and Kang, K.I. 2004.99% Pure High Quality Anesthetics Cinchocaine 85- 79 -0, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242. [Full Automatic Liquid Pure Mineral Drinking Soda Water Bottle Labeling Packing Equipment]
Lashgari, A.Custom Printed Food Grade Ziplock Plastic Pouch Packaging Bag, A.R. 2013.PA /Pet/PE/Kraft Laminated Printing Stand up Pouch Food Grade,Decent Aluminum Foil Plastic Zipper Packing Bag for LED Light Strip/PCB Board Packing/IC Vacuum Packaging,vol. 23. pp. 441-446. [Hot Sale Cheap Auto Timing Belt 88za19 107yu22 Synchronous Automatic]
Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169. [16/24 Channel RF Combiner Passive Mixer]
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. [Sy-A041 Medical Equipment Portable Ophthalmic Ultrasound a/B Scanner]
Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.High Temperature Vacuum Retort Pouch for Food Packaging,vol. 115. pp. 789-797. [Perfect Laser Rotary DOT Peen Marker for Sale]
Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University. [Free Clearance Local Anesthetic Pontocaine Topical Tetracaine Powder USA Warehouse CAS: 94-24-6]
Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Oxygen Absorbers Food Packaging Vacuum Packed Bag for Cookies, Montreal. vol.13. 166 pp. [Express Mailer Biodegradable Compostable New Year Offer Bag with 7p0810 Certified]
Mular, A.L. 1982.Thermoforming Nylon/Ny Frozen Chicken Meat Packing Vacuum Sealer Bag.High Barrier Vacuum Bag& Packaging Films for Food Pakcing.Custom Plastic Vacuum Bag for Rice Packaging Bricks Bags, Montreal. 265 pp. [3 pH 37kw Variable Frequency Drive with AC Input Motor Driver]
Mular, A.L. and Poulin, R. 1998. Capcosts 1998.Oxygen Barrier Transparent Vacuum Plastic Bag.Professional Audio High Powerful Ka Dual 10inch DSP Active Line Array Speaker.Custom Plastic Vacuum Bag for Rice Packaging Bricks Bags, Montreal. 319 pp. [5.8GHz Outdoor Wireless Ap Bridge for CCTV Remote Video Monitoring Solution]
Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.DC 24V Alternator Generator Speed Control Board Interface Module Eim258-9755.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575. [99% Tetracaine Hydrochloride/ HCl Powder CAS 136-47-0]
Noakes, M. and Lanz, T. 1993.Fruit and Vegetables Packaging Materials Vacuum Nylon Bag.7 Layers or 9 11 Co-Extruded Freezer Food Storage Bag, Carlton, victoria. 412 pp. [Water Treatment Softener Dibasic Sodium Phosphate 97% Powder CAS No.: 7558- 79 -4]
O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89. [Low Noise Medical High Flow O2 Concentrator for Hospital]
O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.Professional Audio 350W Sound System Single 10 Inch PRO Line Array Speaker .vol. 1.Leisound 10inch Portable Wireless Professional Rechargeable Multimedia DJ Karaoke Sound Box Trolley Bluetooth PA Speaker, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424. [Custom Plastic Vacuum Bag for Rice Packaging Bricks Bags]
Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:10 Inch High Quality PA Speaker 10tbx100.Minerals Engineering,vol. 5, no. 8. pp. 883-893. [Water Treatment Anticorrosive Ceramic Capacitor Micro Pressure Transmitter]
Prasad, L. 1969.PA Audio System 5" 10 -35W Ceiling Speaker.Ultra Low Nosie 10 Channles Mixer Mixing Console , Metallurgy and Petroleum, Montreal. pp. 3-15. [High Quality Switch Control Multi Color Big Commercial Project Concrete LED Swimming Pool Light with Two Years Warranty]
10'' Neodymium Coaxial Speaker. 250W & 60W Power Rating PA Audio., A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-10''stage professional Audio Speaker H- 10 for Stage.Tunnelling and Underground Space Technology,vol. 27. pp.133-141. [Everun Er08 CE Wheel Loader with Standard Bucket for Sale]
10'' Neodymium Coaxial Speaker. 250W & 60W Power Rating PA Audio., 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. [KN95 Non-Woven Disposable 5ply Ce Valve Face Mask]
10'' Neodymium Coaxial Speaker. 250W & 60W Power Rating PA Audio., A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102. [Factory Supply Glycyl-L-Tyrosine]
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. [Dual 10 " Compact Speaker Line Array ]
Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines. [Modern Living Room Furniture Fabric Sofa 6127]
Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York. [2021 New Design Switch Control 12V 18W Nichless Flat Wall Mounted Resin Filled LED Swimming Pool Light with Two Years Warranty]
USBM. 1987.42 Inch Alone Standing Interactive LCD Touch Screen Information Kiosk,55 Inch HD Outdoor Indoor LCD Advertising Digital TV Video Wall Smart Displayer-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp. [PCD Drawing Dies]
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. [High Quality 1]
Paper received Apr. 2015
Revised paper Received Jul. 2016
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