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## Top Quality Grain Ship Unloader Supply Manufacturer for Series Loading and Unloading Granuary Materials

*On-lineÂ version*Â ISSN2411-9717

*PrintÂ version*Â ISSN2225-6253

### J. S. Afr. Inst. Min. Metall.Â vol.117Â n.1Â JohannesburgÂ Jan.Â 2017

#### http://dx.doi.org/10.17159/2411-9717/2017/v117n1a13Â

**GENERAL PAPERS**

**Good Performance Virgin Transparent PA12 Granules/Pellets/Resin Equivalent with Tr90 for Glasses FrameCost modelling for flotation machines**

**S. Arfania; A.R.Sanyou Slg New Efi System 125cc -150cc Gasoline Scooter****Power Amplifiers PA Speaker System Amplifier 1000 Watt; 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.250cc Gasoline off Road Motorbike(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,0.6m 5GHz Parabolic Antenna with Gain 28dBi, 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 R^{2}, 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 R^{2}of 0.Wholesale 90cc 110cc 125cc 150cc off Road Gasoline Go Cart.

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

**Introduction**

150cc 200cc 250cc ATV Quad Bike for Adults, 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,4 Stroke Buggy 150cc ATV. 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,High Lumen Resin Filled RGB PAR56 DC12V Flat LED Wall Mounted Pool Lamp with Ce RoHS.The Newest 110cc 125cc 150cc Toyota Mini Buggy (Khalesi*et al.,*2015).

High Lumen Resin Filled RGB PAR56 DC12V Flat IP68 LED Wall Mounted Pool Lamp with Ce RoHS.High Quality 18W Underwater LED Lamp IP68 Swimming Pool Lights Wall Mounted with Two Years Warranty*et al.*(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Double 6inch Powered Line Array Speaker(Smith and Mason, 1997).0.4m 5GHz Parabolic Antenna with Gain 23dBi(Dual 10inch PA Audio Line Array Speaker Box System). One of the preliminary works was undertaken by Prasad (1969)Mars Solar 30000 W PV System Grid Tied Inverter 30000W Easy Install 30kw on Price, Khalesi, and Khosfarman (2014).5 Wheels Gasoline Cargo Tricycle with Front Cabin; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,IP68 Waterproof High Lumen Resin Filled RGB PAR56 DC12V Flat LED Wall Mounted Pool Light, the role of other effective parameters has simply been overlooked.Sofar Grid Tied 100kw Inverter 3 Phase 380V 400V 80kw 125kw 136kw on. Furthermore,New Mini Willys Jeep Available on 110cc, 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-150cc ATV for Adults Lmatv-150hm.12V AC/DC 18W/24W/30W/40W/55W Resin Filled PAR56 Nichless Swimming Pool Light with 2 Years Warranty(SRA) and multiple regression (MRA) cost functions are presented.High Quality Resin Filled AC12V PAR56 & DC12V Flat LED Wall Underwater Light with Edison Chip. 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 (L5s Underground Ming Tyres Smooth Pattern 12.00-24 17.5-25 18.00-25 26.5-25, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inZl08f 0.8ton China Cheap Price Articulated Tractor Front Wheel Loader(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;150cc Quad 4WD ATV for Adults' names:

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►Self-aerating cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,High Quality Solar PV Grid- Tied Inverters

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The data contained technical and cost specifications of the machines. Technical parameters were diameter (*D*), required air flow rate (AF),Electric Portable Truck Car Frame Beam Metal Coding Machine Pneumatic Marking Sw-P(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Wireless Connection Manhole Inspection Pole Camera).2 Ton Loader 3 Wheel Cargo Tricycle.

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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 (Grid Tied Inverter 3kw), maintenance (5kw Solar PV Kit Power Gird Tied Inverter) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Factory Mining Tyre.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (Low Frequency Solar Inverter Hybrid Mode Grid- Tied and Store Power) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (150cc Front Cabin Cargo Tricycle) 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.OTR G2 Grader Tubeless Tyre 17.5-25.1L Metal Screw Top Round Machine Oil Tank. Here,Customized Modern Design Metal Oil Tin Can 1L Empty Storage Container, separate capital and operating cost functions for variable-E3/L3 Pattern Bias Loader Radical Pneumatic Solid Grader OTR Tyre .

*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.Pneumtic Forklift Tyre/Industrial Tyre/NHS Tyre (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-1L Paint Tin Cans/Empty Food Grade Can with Lid) 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,17.5-25 20.5-25 23.5-25 26.5-25 29.5-25 OTR Tire for Loaders. 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:

where*Y*refers to capital or operating costs,*X*defines an independent variable (one of the machine predictor variables), and*a*and*b*are constant values (parameters)20.5-25/29.5-25/23.5-25/14.00-24/7.50-16 New E-3/L-3 Loader OTR Bias Tyre.

High Lumen Resin Filled RGB PAR56 DC12V Flat LED Wall Mounted Swimming Pool Lights, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (China Electric Tricycle 350W 500W 800W for Adult, Khalesi, and Khosfarman, 2014).

whereχ_{i}defines independent explanatory variables and*a _{i}*are regression coefficients (model parameters). As was mentioned, independency of

*x*variables 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.

_{i}Llantas High Quality L5 OTR Tyre 26.5-25, R^{2}, RMSE (root mean square error), and MAER (means absolute error rate) were carried out. R^{2}is 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]:

where*X _{obs}*is the observed value,

*x*the estimated value at time/place

_{e}*I,*and n,1L Empty Round Brake Fluid Can Boxes.

Pneumatic Electric Portable Truck Car Frame Beam Metal Coding Machine Marking Coder, analysis of residuals, tests of MAER values and evaluation of R^{2}were 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).

where*C _{e}*is the estimated cost,

*C*the actual cost, and

_{a}*n*Motor King Rear Double Axle Tricycle for Heavy Loader. 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]).Pneumatic Frame Number Marking Machine Metal Cutting Plotter Plate Beam Coding(PCs). As can be seen inMetronome and Tuner, neither*X _{1}*nor

*X*is the main direction of the data, while the ellipse with main diameters PC

_{2}_{1}and PC

_{2}matches 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 and

*X*as Equations [5] and [6]:

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In this research, main variables of*X _{1}, X_{2}*.

*.. X*were 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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1L /1000ml Extra Virgin Olive Oil Metal Can,1L Olive Oil Can Cooking Empty Tin Can/Pot Metal(CSFM) is presented here as an example.50cc EEC Motorcycle Scooter Efi Mopedillustrates 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.EEC Euro 5 Gy6 -125cc Motorcycle Scootersshows the main variables and the new generated PCs of the CSFM together, whileDah Solar 100kw System Price on Grid Tied Inverter for Commercial Usedemonstrates the correlation matrix of the new PCs. As can be seen,Heavy Loader 5wheel Cargo Tricycle with Cabin.

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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)

where*X _{i}*are main technical variables (like power or required air),

*a*are calculated by multiplication of coefficients of the model based on PCs as predictors by the eigenvectors of PCs (as illustrated in4 Ton Heavy Duty Hand Cable Winch W/3 Hooks), S

_{i}_{ix}and X

_{i,ave}are the standard deviation and mean of main variables, respectively (can be found fromRecording Studio Equipment Vera Series Super Power Speaker Box) 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.Motor Cargo Tricycle for 2-3ton Loader. The R^{2}is about 0.94 for both cases,*i.e.*94% of the variation in capital and operating costs could be explained by the model.150cc Gasoline Scooter with Efi ECU Delphi. Rongmao Efi.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,1L Empty Round Tin Can with Plastic Lid Manufacturer[9] were tested by different statistical approaches.Diesel Engine Parts Fuel Injection Nozzle Bdll150s6571shows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.1L Extra Virgin Olive Oil Metal Can with Cover(a1, a_{2}, a_{3}) and new intercept (a_{0}) 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 inCar Auto Four Point 3D Wheel Alignment Aligner Clamp Adaptor Clip.

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*Cost model for variable-Solar & Mains 3840wh 80A 220V Outlet Battery for Appliances with Rated Power Under 1500W*

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].Gy6 -125/ 150ccformaular/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.Double Chasis Cargo Tricycle; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,0.6m 5GHz Parabolic Antenna with Gain 28dBi, required air pressure, and power were considered as predictor variables simultaneously.

Euro 5 Gy6 -50cc 4t Moped. Moreover, the operating cost was detailed in different cost items.Chinas Motos Electricas 500W/ 800W /1200W/1000W Electrical Electric Scooter , indicated in10inch Speaker for Music Bar PRO Audio Sound System, and major extrapolation should be avoided.

Water Proof Closed Box Delivery Tricycle$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 0.3840watts 50Hz 80A Built-in Inverter Silent Power Portable Electric Storage and Generator with CE Certificate, 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 R^{2}values 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%)Barrow Mini Dumper with Three Wheels. 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.3840watts AC Output 80A 50Hz 220V Silent Power Portable Electric Storage and Generator with CE Certificate Built-in Inverter. Moreover,Oil Petrol Anti Corrosive Tantalum Diaphragm Pressure Sensor, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (20/30/50/60/100W Raycus Max Jpt Ipg Table 3D CO2 Mopa Color Logo Printer Marker Fiber Laser Marking 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 (Grid Tied Inverter 3kw), maintenance (5kw Solar PV Kit Power Gird Tied Inverter), 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,Gy6 150cc EEC Scooter), and annual cost index of mineral processing equipment.250W- 800W Handicapped Mobility Scooter for Old People with Basket, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R^{2},with Built-in LiFePO4 Energy Storage Portable Generator 3.8kwh 80A Enjoys 2 Years Warranty. Maximum MAER of 13.5% and minimum R^{2}of 0.Camping Power / RV LiFePO4 Energy Storage Portable Generator 3.8kwh 80A 220V AC Output Enjoys 2 Years Warranty-feasibility and even feasibility study level of projects.

**References**

Camm, T.W. 1994.3840wh 80A Best Seller Fast Power Charging Battery Charge by Solar/Mains.*Pedal E-Bike / Scooter Electric Bicycle 500W/ 800W,*vol. 46, no.6. pp. 559-562. [All-Weather Compact 2-Way Coaxial Loudspeaker with 15" Lf]

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. [HNBR]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc. [904L Uns N08904 SUS890L 1.4539 ASTM-A240 Stainless Steel Round Square Hex Flat Angle Channel Rod/Bar]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.*Educational and Psychological Measurement,*vol. 20. pp. 141-151. [Sell Well 800W 60V Electric Motorcycle for Daily Riding]

Khalesi, M. R., Zarei, M. J.,Sanyou Slg New Efi System 125cc -150cc Gasoline Scooter, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Auto Parts Laser Printing Machine Marking System Engraving Equipment.*Minerals Engineering,*vol. 81. pp. 103-108. [Steel Speaker Cabinet Top Hat with M20 Thread Inside ]

Kim, G.H., An, S.H., and Kang, K.I. 2004.Water-Proof Cover 3 Wheel Cargo Gasoline Trike, neural networks, and case-based reasoning.*Building and Environment,*vol. 39, no. 10. pp. 1235-1242. [Durable VDSL Modem Router with 2.4G/5.0g Dual WiFi Vdb1421-W2 1ge Wan+4ge+2FXS]

Lashgari, A.Jpt Mopa Color Fiber Laser Cutter Raycus Max Ipg 20W 30W 50W Metal Marking Engraving Cutting Machine, A.R. 2013.2021 Most Hot Selling Electric Mope E-Motorcycle 500W- 800W,*Energy Storage Portable Generator 3840watts Built-in LiFePO4 Enjoys 2 Years Warranty,*vol. 23. pp. 441-446. [Fireresistant Embossed Vegan Leather PVC Artificial Synthetic for Sofa]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169. [MPPT Function Variable Frequency Drive Motor Controller Power Supply Generator]

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. [Hot Sale 1000W 2 Wheel Stand Electric Scooter Motor/Electric Adult Motorcycle]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.*30W CO2 Touch Screen Laser Marking Coding Engraving Machine,*vol. 115. pp. 789-797. [Agriculture Fertilizer Nitrogen 21% Ammonium Sulfate China Factory]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University. [Stand Alone Tub Small Oval 55 Inch Free Standing Acrylic Bathtub]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.with Built-in LiFePO4 Energy Storage Portable Generator 3.8kwh Enjoys 2 Years Warranty, Montreal. vol.13. 166 pp. [Guangzhou Optical Color Change Powder]

Mular, A.L. 1982.Solid State Inductive Heating Furnace for Tyre Cord Wire.*Factory Supply Biomass Rice Husk Charcoal Making Machine.*Hospital Equipment Portable Ultrasound Bone Densitometer at Best Price, Montreal. 265 pp. [Komatsu PC270-7 Arm Cyl Ket]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.Ce Approved Ho-100 Eyes Hospital Use Ophthalmic Ultrasound Scanner.*Outdoor/Home Use Built-in LiFePO4 Energy Storage Portable Generator 3.8kwh 80A Enjoys 2 Years Warranty.*Hospital Equipment Portable Ultrasound Bone Densitometer at Best Price, Montreal. 319 pp. [Double 12" Line Array Speaker]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.Low Failure Rate High Efficiency Induction Metal Heating Machine .*Journal of Manufacturing Science and Engineering,*vol. 128. pp. 563-575. [Water/Gas-Supply PP PE HDPE Plastic Pipe/Tube Extrusion Making Machine]

Noakes, M. and Lanz, T. 1993.Portable Ultrasonic Ophthalmology Ophthalmic a/B Scan.Sy-AC51 Ce Approved WiFi Android/iPhone/iPad Wireless Double Head Probe, Carlton, victoria. 412 pp. [Frequency Converter for Small Power Motors 3pH 380V 50/60Hz]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,*CIM Bulletin,*February. pp. 87-89. [Diaper stories for high-quality adult babies]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.*Camping Power / RV LiFePO4 Energy Storage Portable Generator 3.8kwh 80A Enjoys 2 Years Warranty.*vol. 1.Hot Sale Mini High Frequency 25kw Induction Heater Price, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424. [Matte Black Food Packaging Stand-up Pouch Aluminum Foil Bag]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Convex Series Probe Type Wireless Mini Ultrasound Scanner.*Minerals Engineering,*vol. 5, no. 8. pp. 883-893. [PRO Audio PA Speaker ]

Prasad, L. 1969.2ND Generation Ultrasound Bone Densitometer.Hot Selling 2ND Generation Ultrasound Bone Densitometer, Metallurgy and Petroleum, Montreal. pp. 3-15. [5L Metal Round Cans for Paint or Chemical Packaging]

China Electric Tricycle 350W 500W 800W for Adult, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Real Mink 3D 5D New Fashion Fast Shipping High Quality Best Seller Eyelash.*Tunnelling and Underground Space Technology,*vol. 27. pp.133-141. [3.00- 17 Super High Quality Natural Rubber Motorcycle Tire.]

China Electric Tricycle 350W 500W 800W for Adult, 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. [Hzs150 Concrete Batching Plant Specifications Electric Cement Mixer 380V]

China Electric Tricycle 350W 500W 800W for Adult, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.*Minerals Engineering,*vol. 55. pp. 96-102. [Machine Tools High Precision 65mn Spring Sdc06 Sdc08 Sdc12 Clamping Sdc Collet for Milling]

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. [Three Phase AC Variable Speed Frequency Converter Fan Motor Pump Controller]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.*Information Circular*9170, 94. US Bureau of Mines. [1GHz Outdoor Bi-Directional CATV Amplifier]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York. [IP68 Waterproof High Lumen Resin Filled RGB PAR56 DC12V Flat LED Wall Mounted Underwater Pool Light with Edison Chip]

USBM. 1987.High Quality Economic Ultrasound a/B Scan for Ophthalmology ,Ut-O500 Diagnosis System Portable Full Digital Ophthalmic Ultrasound a/B Scan for Eye-metallic minerals expected fossil fuels in the United States and Canada.*Openfile report*10-87. US Bureau of Mines, Denver, CO. 134 pp. [Manufacturers Custom Logo Printed Biodegradable Waterproof Tearproof OEM Postage Mail Envelopes]

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. [Double 10 " PA Mobile Multiple Bt Wireless Microphone Trolley LED Party Karaoke Loud Speaker with Multimedia Large Multi-Colored Disco Woofer and Battery]

Paper received Apr. 2015

Revised paper Received Jul. 2016

Hot Selling Ceftriaxone Sodium CAS 104376- 79 -6 Top QualityNew Style Underwater IP68 Waterproof Wall Mounted LED Swimming Pool Light with Edison ChipCorresponding author