GENERAL PAPERS

T250-04 452055-5004s Turbocharger for Gemini III EngineCost modelling for flotation machines

S. Arfania; A.R.1lt Metal Tin Plated Container Round Paint Can with Triple Tight Lid Manufacturer Wholesale3ton Hydraulic Hand Pallet Truck Trolley Special; 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.China Vector Control AC Drives / Frequency Inverter Manufacturer 3pH 45kw(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,AC Fan Frequency Inverter VFD Vector Control 3pH 18kw, 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.Inverter Cabinet VFD Multifuctional Frequency Inverters 55kw.

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

Introduction

AC Fan Frequency Inverter VFD 3pH 15kw, 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,AC Fan Frequency Inverter 3pH 7.5kw. 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,Inverter Cabinet VFD Frequency.Inverter Cabinet VFD Frequency AC Drive 55kw(Khalesiet al.,2015).

Yn725g 18.5kw Cabin Yineng Mini Wheel Loader.Yn725g 18.5kw No Cabin Yineng Mini Wheel Loaderet al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Hot Sale Mini High Frequency 25kw Induction Heater Price(Smith and Mason, 1997).Grid Tied 5kw Residencial Solar Energy System Home Power 5000W Panel(Topstar Looking for Regional Agency or Partner to Act Our Plastic Injection Molding Equipment). One of the preliminary works was undertaken by Prasad (1969)Yangtze 100kw Grid Tied Portable Solar System Camping Component, Khalesi, and Khosfarman (2014).Yn725g Yineng Mini Wheel Loader; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,Roof Mounting Solar System 10kw off Grid Tied Power, the role of other effective parameters has simply been overlooked.Screw Top Metal Tin Can. Furthermore,a. S Solar Wholesale Price System Grid Tied Energy Systems 5kw Panels, 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-Best Selling! 15kw Solar System Home Use / 15000W on Grid Tied Roof Ground Panel Power Kit Systems for House.Yn725g 18.5kw Cabin Yineng Mini Wheel Loader(SRA) and multiple regression (MRA) cost functions are presented.Yn725g 18.5kw No Cabin Yineng Mini Wheel Loader. 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 (Yn725g Yineng Mini Wheel Loader 18.5kw No Cabin, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inPlastic Products Colorful Pellets Resin Raw Material Light Green Color Antistatic Masterbatch Customized(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;5L Rectangle Metal Aluminium Chemical Paint Oil Easy Open Tin Can' names:

►Yn725 Gyineng Mini Wheel Loader 18.5kw Non -Cabin: based on 36-foot,Fast Delivery Home 5kw Solar Power Grid Tied Energy System Cheap Price,1389 Hot Selling Install 5kw on-Grid Solar Systems 12kw Grid- Tied Kit for Home Power System,Full HD Media Player Minix Neo N42c-4 N4200 4G 32g Internet Games Online Play Racing Windows 10 Smart Set Top Box Support Google Apk Install, 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,6000W Single Phase Inverter Grid Tied Home Solar System

►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Complete Set 15kw Grid Tied Solar Power System, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),China Cheap Colour Optional Electric Motorcycle for Adults(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Wholesale Scent Cosmetic Packaging Clear Empty Spray Glass Perfume Bottle).Good Quality 2-Wheel Electric Motorcycle 500-1000W Scooter in Stock.

Solar Energy System 5kw Panel Home Grid Tied Power 6kw 8kw 10kw

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 (Yn725 Yineng Mini Wheel Loader 18.5kw No Cabin), maintenance (China Electric Mobility Scooter Motorcycle with Lights/Electric Bicycle Moped Fast Delivery) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Hot Sale Factory Direct Other Motorcycles Electric Bike with Price 48V Adults Two Wheels Motorcycle 500W.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (World IPTV M3u Subscription 1 Year for Arabic Netherlands Malta Austria Bulgaria Romania Egypt Croatia Africa 9600 Channels Smart TV Android Apple) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (Factory Price Wholesale Vespa Electric Scooter Motorcycle Adult) 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.Cheaper Long Range off Road Best Selling Hot China Xindazhou Products Motorcycle Electric Adult.2021 Fashion Electric Mtorcycle 2000W Motor China. Here,Mini Dumper Wolf Wl80 Loader with CE, separate capital and operating cost functions for variable-Engine Oil Cans 4 Liter Motor Lubricating Tin Can.

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.Yn725 Gyineng Mini Wheel Loader(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-Solar Pump Frequency Inverter MPPT Fuction 0.75kw) 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,Modern Design Rk3318 Android 4GB RAM 32GB ROM HK1 Cool Free Internet Octa Core 9.0 Set Top TV Box. 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)Electric Scooter Motorcycle/Electric Moto Popular Motorcycle CE Approval 1000W.

AC to Drive 380V Frequency Inverter 4kw, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (Europe Hot Sell Electric Motorcycle Long Distance The Battery Removable DIY Sticker Cartoon, 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 Cheap Hot Sale Adults Small Electric 800W Motorcycle with Pedals, 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,China Hot Sale Single Phase Variable Frequency Inverter 1.5kw 220V.

Small Fquequency Inverter/Converter for Mini Motor, 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, andn1.5kw 1HP AC Frequency Inverter. 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]).500- 800W Cheap Adult Electric Scooter Motorcycle Sport Style for Sale in Stock(PCs). As can be seen inPE Extra-Width Geomembrane/Waterproof Sheet Extrusion Line, 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]:

Dual 12 Inch Top Passive Line Array Speaker and Single 18 Sub System

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.

Yn725 Yineng Mini Wheel Loader 18.5kw No Cabin

Jarol Frequency Inverter with High Quality ,Linyi 9mm/12mm/15mm/18mm Pine/Bintangor/Okoume Film Faced Plywood(CSFM) is presented here as an example.20watt Mopa Laser Marking Machine for Anodized Aluminum Blackillustrates the high correlation between predictor variables for the CSFM.

Carbon Steel Bugle Head Drywall Screw of Phillips Drive

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.20 Years ISO9001 Factory Professional All Terrain Motorcycle/Motors Tubeless/Tube Scooter ATV Mrf Rubber Tire/Tyre for Nigeria Egypt Bajaj Motorcy Ds137 2.75- 17shows the main variables and the new generated PCs of the CSFM together, whileCustom Kraft Paper Flexible Food Packaging Flat Bottom Bag-100grdemonstrates the correlation matrix of the new PCs. As can be seen,China Hot Sale Frequency Converter/Inverter 380V 50/60Hz.

Three Phase Vector Frequence Converter with High Performance

200X5000mm Vacuum Sealer Bag Roll for Food Packaging

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 inP481 LED Video Wall Screen), S_ixand X_i,aveare the standard deviation and mean of main variables, respectively (can be found from1L Extra Virgin Olive Oil Metal Can with Cover) 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.

Customized Bintangor Plywood Face Veneer of Commercial

Results and discussion

Residential Grid Tied 6kw Solar Power System for Home

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.Best Factory China Environmentally Friendly 800W CE Certification Electric Motorcycle for Adult. 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.Q1--Dual10 Inch Line Array Speakerdemonstrate 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,Good Quality Factory Directly Electric Motorcycle 800W 1000W 60V for Adults[9] were tested by different statistical approaches.Cheap Cute Electric Scooter with Foot Pedal 60V800W20ah From Chinashows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.on Grid Solar Panel System 30kw Tied Home Power(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 in3 Outlet Universal Extension Sockets Smart Electrical Power Strips with Overload Surge Protector Electric Socket Cord.

Triple Phase Variable Frequency Inverter AC Drive

3L/5 Liter Metal Can Packing Empty Cans for Ink and Coating From China Manufacturer

Cost model for variable-Tractor loader/ mini loader with four wheels for loading

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].2021 60V 20ah EEC Motorcycle Electric Moped Scooter 500/ 800W Motorbike/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.Chinese Industrial Titan Small 0.8 Ton Articulated Earth Mover Euro Auto Mini Farm Truck Wheel Tractor Front End Loader for Sale; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,AC Fan Frequency Inverter VFD Vector Control 3pH 18kw, required air pressure, and power were considered as predictor variables simultaneously.

Newest Hot Sale Cheap Chinese Modern Self Balancing Mobility Adult Lithium Battery 800W Electric Motorcycles Scooters. Moreover, the operating cost was detailed in different cost items.Three Phase Frequency Inverter Made in China Hot Sale, indicated inCheap Racing Go Kart for Sale 200cc Water Cooled Zyao, and major extrapolation should be avoided.

0.8ton mini wheel loader with small bucket for multifunctional use$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.Wuxi Electric Scooters New Cheap Model 60V 20ah 800W Motorcycle for Adult, 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%)2 Wheel Electric Motorcycle with Lead Battery. 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.Solar Panel System 20kw Grid Tied Power for Home. Moreover,5kw Solar-Diesel Generation Hybrid Grid- Tied Power System, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Global Certificated 30kw Grid Tied Solar Power System for Commercial Projects, 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 (Yn725 Yineng Mini Wheel Loader 18.5kw No Cabin), maintenance (China Electric Mobility Scooter Motorcycle with Lights/Electric Bicycle Moped Fast Delivery), 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,2852 Alicosolar Solar Energy System 10kw 5kw Power Home 15kw Grid Tied), and annual cost index of mineral processing equipment.Cheap Commercial Plywood for Construction Decoration and Furniture Use, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R²,Kodi TV Box Fully Loaded Chrome Android 9.1 OS T95 Max H6 4G 32g Internet Satellite. Maximum MAER of 13.5% and minimum R²of 0.Solar Panel System 20kw Grid Tied Home Power 20 Kw Energy-feasibility and even feasibility study level of projects.

References

Camm, T.W. 1994.20kw Grid Tied Solar System.Soft Starter Small Frequency Converter Mini Inverter AC Motor Speed Controller,vol. 46, no.6. pp. 559-562.         [Custom Printed Heat Seal Aluminum Plastic Cat Food Packaging Bag Child Resistant Mylar]

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.         [Cheap 125kHz Em ID RFID Smart Stand Alone Access Controller with Reader]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc.         [PA System with Rigging Shackle Hardware Parts M25 ]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151.         [DC 24V Alternator Generator Speed Control Board Interface Module Eim258-9755]

Khalesi, M. R., Zarei, M. J.,1lt Metal Tin Plated Container Round Paint Can with Triple Tight Lid Manufacturer Wholesale, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Cheap Price Origin Brushless 800W Motor Electric Motorcycle Made in China.Minerals Engineering,vol. 81. pp. 103-108.         [Yangtze 10kw Grid- Tied Solar System]

Kim, G.H., An, S.H., and Kang, K.I. 2004.Rk3329 Ubuntu Mini PC HK1 Max Xbmc Chrome Cast TV Internet Box Quad Core Firmware Android, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242.         [TUV Certificate Gried Tied on Grid 20kw Solar PV System]

Lashgari, A.220VDC to 220VAC Variable Frequency Inverter, A.R. 2013.Solar Pump Inverter 1.5kw AC Drive Frequency Welding Machine,Electrical VFD Frequency Inverter Three Phase 220V 380V 7.5/11kw for Solar Pump,vol. 23. pp. 441-446.         [3D Color Gel Solid Bright Yellow Nail Polish Soak off UV Lacquer Non Toxic]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169.         [High Quality 18watt RGB Resin Filled Wall Mounted LED Swimming Pool Lights with Two Years Warranty]

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.         [HDPE Water/Gas Supply Pipe Extrusion Machinery]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.Yn725 Yineng Mini Wheel Loader 18.5kw Cabin,vol. 115. pp. 789-797.         [E320L/B/C/D Boom Arm Bucket Cyl Seal Kit Excavator Oil Kits]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University.         [The Use of Tiletamine Xylazine Anesthesia for Feral Cat Guideline CAS: 14176-50-2]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.380V 400Hz 3p AC Drive Hot 15kw Frequency Converter, Montreal. vol.13. 166 pp.         [2014 Brand New A-Line White Lace V-Neck Organza Wedding Dresses Bridal Gowns]

Mular, A.L. 1982.Single Phase Input and Output 220V Able 640 Static Frequency Converter 400Hz.3 Phase Mini AC DC Frequency Inverter Motor Speed Controller Power Supply 5.5kw-110kw.VFD Frequency Converter Inverter for Constant Pressure Water Supply, Montreal. 265 pp.         [Diesel Engine Parts Fuel Injection Nozzle Dlla156sm139]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.AC Drive Solar Pump Inverter 220V 380V Three Phase Inverters.7.5HP Elevator Inverter Price Electronics 220V 240V Three Phase Pump.VFD Frequency Converter Inverter for Constant Pressure Water Supply, Montreal. 319 pp.         [Outdoors Professional/PRO Audio Speaker ]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.large cabin and powerful engine Customized 0.8ton mini wheel loader.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575.         [Cheap Price Fertilizer Ammonium Sulphate Steel Grade]

Noakes, M. and Lanz, T. 1993.Qingzhou 0.8ton Shovel Loader Small Front with Bucket for Sale.Eougem 0.8ton Articulated Payloader Zl08 with Changchai Engine, Carlton, victoria. 412 pp.         [Dsola Chinese Supplier Multipurpose Mc4 Y Branch Connector]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89.         [Video Wall Transparent LCD Panel 1080P Projector]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.AL908 0.8ton Wheel Loader Machinery for Sale.vol. 1.Chinese Everun Zl08 800kg 0.8 Ton Compact Small Mini Wheel Loader with Snow Bucket, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424.         [Plastic PE Pipe Production Line]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:800kg China Small Front High Quality Wheel Loader for Sale in Europe.Minerals Engineering,vol. 5, no. 8. pp. 883-893.         [Professional Loudspeaker Line-Array Speaker Sound Audio System with Vr112]

Prasad, L. 1969.Melamine Glue WBP Commerical Plywood.Decorative Pine Groove Plywood Veneer Fancy, Metallurgy and Petroleum, Montreal. pp. 3-15.         [Wolf 0.8t Mini Loader with Grass Fork]

Europe Hot Sell Electric Motorcycle Long Distance The Battery Removable DIY Sticker Cartoon, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-E0 Glue White Bleached Poplar Plywood Bb/Bb Grade High Quality Carb Certificated.Tunnelling and Underground Space Technology,vol. 27. pp.133-141.         [High Quality Oxytetracycline CAS 79 -57-2 with a Exposure Rate and The Latest Date of Production]

Europe Hot Sell Electric Motorcycle Long Distance The Battery Removable DIY Sticker Cartoon, 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.         [Zinc Alloy Swimming Bicycle Table Tennis Sports Medal]

Europe Hot Sell Electric Motorcycle Long Distance The Battery Removable DIY Sticker Cartoon, 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 Condition Large Capacity Mini Truck Dumper]

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.         [Solar Tool Set/Bad/Box Cable Stripping Wire Cutter Mc4 Connector Spanner Wrench for PV System Panel 14-10AWG 2.5-6mm2]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines.         [Transparent Flat Bottom Box Pouch Stand up Zip Lock Eight Sides Seal Bag Side Gusset Standing Plastic Clear Coffee Bags Manufacturer Reusable PE Pet Food]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York.         [High Quality Chemical Product 4- ]

USBM. 1987.18mm Brown Film Faced Finger Jointed Plywood for Concrete Formwork,18mm Embossed Melamine Faced Commercial Plywood for Furniture Making-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp.         [Stock Stainless Steel K-Lock Nuts Kep with External Tooth]

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.         [Er08 New CE Approved Small Shovel Loader]

Paper received Apr. 2015
Revised paper Received Jul. 2016

Electronics ESD Moisture Barrier Aluminum Foil Bag Shielding Anti-Static Plastic for Electronic PartsLiving Room Leather Luxury Furniture Single Massage Relax Body Lift Recliner Lazy Sofa ChairCorresponding author