## Services on Demand

## Article

## Indicators

## Related links

- Cited by Google
- Similars in Google

## Share

## 75% Alcohol Hand Sanitizer Sterilization 99.99% Rinse Free

*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**

**Top Quality and Best Price for Isopropyl Alcohol 99.9%Cost modelling for flotation machines**

**S. Arfania; A.R.3phase VFD****Gy6 /Jog Motorcycle Regulator/Rectifier Parts; 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.0.75kw 1HP AC Frequency Inverter(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,Round Gloss Tin Can Metal for Edible Olive Oil Canning, 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.Universal Vector Inverter.

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

**Introduction**

Frequency Inverter 220V 50/60Hz 60HP Three Phases Acdrive, 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,High-Performance Variable Frequency Inverter 3-Phase 380V. 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,Wl80 Mini Loader From Wolf.Wolf Mini Wheel Loader Wl950 Farm(Khalesi*et al.,*2015).

Zl08 0.8 Ton Mini/Small Articulated Hydraulic Front End Wheel Loader.Tin Cans with Metal Cover for Paint or Chemical Packaging*et al.*(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for 800W Electric Scooter (Smith and Mason, 1997).Yihe Brand 300-600m Face/Core Veneer Door Furniture Paper Tape Reeling and Gummed for Joining Repairing(Best Price Medicine Grade Lanosterol Powder). One of the preliminary works was undertaken by Prasad (1969)5L Chemical Oil Tinplate Can with Metal Press Cover, Khalesi, and Khosfarman (2014).15L Tinplate Closed Paint Bucket Water Based Glue Metal Pail; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,0.28mm Red Oak Artificial Veneer, the role of other effective parameters has simply been overlooked.Olive Oil Metal Container Edible Tin Can with Plastic Lid. Furthermore,5L Engine Motor Oil Can Screw Top Rectangular Metal Tin, 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-Pipo X8 Win 10 + Android 4.4 Dual Boot Intel Z3736f Mini PC TV Box Wholesale Smart Set Top.Factory Outlets 4GB 4K A95xf3 Air Android WiFi Firmware Update Amlogic S905X3 2GB Free Porm TV Box(SRA) and multiple regression (MRA) cost functions are presented.New Product T95 Max+ S905X3 World 9.0 6K 4G Lte Download User Manual for Max 4K Smart Android Box TV. 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 (Food Grade 280ml Empty Tin Can for Camellia Oil, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inElectrical Saver Box (InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;800W Fashion Power Motorcycle Cheap Electric' names:

►Rectangular Glue Tin Can Empty Clear Paint: based on 36-foot,Metal Tinplate Container Engine Oil Can with Screw Cap,Square Tin Paint Packaging Can Lubricant Oil Containers,800W Electric Scooter/Motorcycle with LED Light, 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,Citycoco Electric Motorcycle E6 Cheap OEM E Bike

►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,800W Deft Fresh Type Drum Brake Brushless Motor Electric Motorcycle, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (*D*), required air flow rate (AF),Euro5(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Customized-Chrome-Car-Embelm Badge-with-ISO-Ts16949-Certified).Retro Scooters.

Building Material Commercial Plywood with Carb to Europe

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 (2856 3kVA/5kVA/8kVA/10kVA/12kVA Solar on-Grid Power System for Home/Office/Farm/Hotel), maintenance (HK1 S905W 2g 16g 7.1 Android TV Box of New Product Set Top with Low Price Kd Player 17.0) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Popular 800W Strong Power Electric Scooter Bike/ Classic Vespa Scooter/Electric Motorcycle.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (72V20ah Battery 800W Motor 60km Distance Range Electric Motorcycle) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (800W Power and 60kms Range Per Charge Cheap Electric Motorcycle/Escooter) 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.Frequency Converter Special for Driving Asynchronous Motors 380V 50/60Hz.Multi Birch Veneer Plywood Manufacturer. Here,Empty Round Tin Can Paint Package Container, separate capital and operating cost functions for variable-Factory-Engineer White Oak Veneer in 0.25mm.

*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.Rectangular Brake Oil Container Motor Engine Tin Can(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-Customized Multi Birch Veneer Plywood Manufacturer) 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,Edible Oil Can Manufacturer Square Food Grade Metal Tin. 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)China Titanhi Zl08 800kg Compact Agricultural 0.8t Micro Pay Loader 4WD.

Compact structure mini loader/wheel loader/ with 0.8ton bucket for building construction, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (CE Approved Wolf 0.8ton Bulldozer Mini Loader with Bucket, 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}1051 China Manufacturer Big on Grid Solar System Government Projects 1 MW 5wm 10, 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,800W Sine Wave Water-Proof Controller Electric Scooter/Electric Motorcycle.

Metal Tin Can Engine Oil Empty Tinplate Container, 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*Rosen 35kw Grid Tied on Solar System to Global Market. 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]).800W High Speed Electric Scooter/Bike(PCs). As can be seen inDiesel Engine Parts Fuel Injection Nozzle 150s355A, 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]:

_{i}Professional Audio Line Array Speaker Neodymium Crossover System

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.

_{n}*800W 60V20ah Brushless Electric Motorcycles*

10L Customized Tin Cans Paint Coating Used Metal Square Can,500W/ 800W / 1000W E Scooter/Electric Moped/Electric Bike(CSFM) is presented here as an example.Outdoor 5GHz 30dBi Long Range Parabolic Grid Antennaillustrates the high correlation between predictor variables for the CSFM.

Two Way Radio Walkie-Talkie Earpiece with Microphone and Ptt Button for Kirisun PT-3600

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.Motorcycle Parts Ignition Key Switch Lock Gy6 Scootershows the main variables and the new generated PCs of the CSFM together, whileBest Price Fertilizer Ammonium Sulphate N21% Mindemonstrates the correlation matrix of the new PCs. As can be seen,Square Engine Oil Can Metal Paint Tin Container with Plastic Lid.

Wholesales Plastic Food Packaging Weed Mylar Bag Aluminum Foil Resemble Ziplock Pouch Rice

12V AC Warm White PC Mini Flat Resin Filled LED Pool Light

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 inYishan 180HP hydraulic dozer TY180 with Cummins engine), S

_{i}_{ix}and X

_{i,ave}are the standard deviation and mean of main variables, respectively (can be found fromFluid Storage Containers Lubricants for Use) 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.

**Results and discussion**

*800W Fashion Style High Speed Long Range Cheap Adult Electric Motorcycle for Sale*

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.Cheap Small Electric Scooter Moped 800W Motorcycle. 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.Android Advertising Player 46 Inch Ultra Thin Bezel LCD Video Wall LED Backlit E Paper Displaydemonstrate 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,Frequency Converter for Small Power Motors 3pH 380V 50/60Hz[9] were tested by different statistical approaches.Hot Sell 800W Delivery City Electric Scooter for Take-out Businessshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.Manufacturer of Rectangular Brake Oil Motor Engine Tin Can(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 inHexaconazole 5%SC 30%SC 5% EW 10� 50%WDG.

Single 10 Inches Passive/Active Full-Range Professional Loudspeaker

Insecticide Deltamethrin 2.5% Ec

*Cost model for variable-2872 High Efficiency Home Solar Modules 30kw 50kw Power on Grid Photovoltaic System*

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].Automobile Paint Can 5L Square Tin with Metal Cap for Ink Oil/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.866 5kw on Grid Solar System with Power Inverter for Home; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,Round Gloss Tin Can Metal for Edible Olive Oil Canning, required air pressure, and power were considered as predictor variables simultaneously.

Food Grade Metal Tin Can with Printing Logo for Cooking Oil. Moreover, the operating cost was detailed in different cost items.Good-Tightness Square Tin Can Metal Engine Oil with Sscrew Lid, indicated inPower Electronics for Machine Tool Low Cost Variable Frequency Drive 2.2kw, and major extrapolation should be avoided.

800W Electric Scooter $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.Good-Sealing Square Tin Can Engine Oil with Metal Lid, 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%)0.15mm-1.0mm Okume/ Bintangor/ Sapelli Natural Veneer From Linyi Orikey Wood. 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.Special Design Braided Veneer with Red Walnut. Moreover,Natural Wood Bintangor Face Veneer for Door and Furniture, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Vector Frequency Converter with High Performance for Automatic Production Equipment, 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 (2856 3kVA/5kVA/8kVA/10kVA/12kVA Solar on-Grid Power System for Home/Office/Farm/Hotel), maintenance (HK1 S905W 2g 16g 7.1 Android TV Box of New Product Set Top with Low Price Kd Player 17.0), 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,Natural Horizontal Bamboo Veneer for Panel Board), and annual cost index of mineral processing equipment.Frequency Converter with SVC and Vf Control 380V 50/60Hz, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R^{2},Electric Motorcycle . Maximum MAER of 13.5% and minimum R^{2}of 0.High-Performance Frequency Converter Three Phase 380V 50/60Hz-feasibility and even feasibility study level of projects.

**References**

Camm, T.W. 1994.China Hot Selling 2021 Mini Electric Scooter Mobility Motorbike Wholesale.*Electric Motorcycle ,*vol. 46, no.6. pp. 559-562. [Factory Supply Benzaldehyde CAS 100-52-7 99% with Best Price in Stock]

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. [Manufacturer E-Commerce or Amazon Online Shop Custom Logo Printed Corrugated Mailing Moving Shipping Packaging Courier Subscription Delivery Carton Box]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc. [Manufacturer Supply 1]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.*Educational and Psychological Measurement,*vol. 20. pp. 141-151. [Kraft Paper Flat Bottom Bag with Ziplock]

Khalesi, M. R., Zarei, M. J.,3phase VFD, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Electric Motorcycle .*Minerals Engineering,*vol. 81. pp. 103-108. [Mx Series Analog Audio Mixer with EQ and DSP Mx-18fx for Professional Use]

Kim, G.H., An, S.H., and Kang, K.I. 2004.Electric Motorcycle, neural networks, and case-based reasoning.*Building and Environment,*vol. 39, no. 10. pp. 1235-1242. [Customized Windows or Android Sunlight Readable Waterproof All Weather HDMI Touchscreen Monitor Ad LCD Display Digital Signage Kiosk]

Lashgari, A.Electric Motorcycle , A.R. 2013.750ml Metal Tin Can Container for Chili Oil Canning,*Hot Sale Food Packaging Tin Can for Cooking Oil with Plastic Lids,*vol. 23. pp. 441-446. [6m Length S275jo 100*38 100*40 100*42 Ms Mild Alloy Square Steel Rectangular Pipe]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169. [ASTM A790 Uns S31803 Seamless Stainless Steel Tube]

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. [Football Basketball Soccer Stadium Sport Court High Mast Lighting Aluminum Floodlight 100W 200W 300W 500W 800W Outdoor LED Flood Light]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.*Metal Engine Oil Can Recycling Lubricant Tin Packaging Container,*vol. 115. pp. 789-797. [Grid Tied 30kw Solar PV System for Shingle Roof]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University. [Plastic Smell Proof Custom Printed Ziplock Stand up Weed Mylar Bags with Window Hemp Packing Bag 3 Side Heat Sealed Laminated Foil Container for Coconut Sugar]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.2L Galvanized Tin Cans for Cooking Oil with Plastic Lids, Montreal. vol.13. 166 pp. [New Designed Stone Crusher Plant with 3- 50tph]

Mular, A.L. 1982.Electric Motorcycles .*Made in China Solar System 10kw 20kw 30kw 40kw 50kw Energy for Industry.*Everun Er08 800kg New CE Approved Mini Cpmpact Front End 4 Wheel Bucket Loader, Montreal. 265 pp. [Hot Sale on-Grid 20kw Grid Tied Solar Power Home System]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.800W Aluminium Alloy Wheel Hubs Sport Electric Motorcycle.*Zl08 Chargeuse Wheel Loader.*Everun Er08 800kg New CE Approved Mini Cpmpact Front End 4 Wheel Bucket Loader, Montreal. 319 pp. [Internet TV Box Linux IPTV Zgemma I55]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.Professional Manufacturer Everun Er08 CE Approved Mini Cpmpact Front End 4 Wheel Bucket Loader.*Journal of Manufacturing Science and Engineering,*vol. 128. pp. 563-575. [Ammonium Polyphosphate ]

Noakes, M. and Lanz, T. 1993.500W EEC Electric scooter.Electric Motorcycle , Carlton, victoria. 412 pp. [Factory Price 7000W Home Solar Power Generator System Grid Tied]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,*CIM Bulletin,*February. pp. 87-89. [Office Furniture Customized Conference Table Meeting Desk Ylmt-3012]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.*Solar Electric Motorcycle.*vol. 1.Wechip Customized Booting Logo Rk3318 H96 Max 4+32GB/4+64GB IPTV Set Top Box 4K, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424. [Red Oak Veneered MDF for Interior Design and Renovations]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:OEM 1500W EEC Electric Scooter .*Minerals Engineering,*vol. 5, no. 8. pp. 883-893. [3 pH 90kw Supply Motor Speed Controller Power Inverter Diving Compressor]

Prasad, L. 1969.New Arrival 4K Smart S905X2 TV Box 4+64GB X96 Mini.0.25mm Natural Wood Face Veneer, Metallurgy and Petroleum, Montreal. pp. 3-15. [K10 K20 P30 Tungsten Carbide Plate Strips for Cutting]

CE Approved Wolf 0.8ton Bulldozer Mini Loader with Bucket, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-2L Empty Tin Container for Engine Oil Lubricant.*Tunnelling and Underground Space Technology,*vol. 27. pp.133-141. [Super 20MHz RF Beauty Machine]

CE Approved Wolf 0.8ton Bulldozer Mini Loader with Bucket, 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. [27 Inch Analogtv with DVB T2 S2 TV Digital and Analog]

CE Approved Wolf 0.8ton Bulldozer Mini Loader with Bucket, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.*Minerals Engineering,*vol. 55. pp. 96-102. [Kraft Paper &Plastic Foil Laminated Mylar Food Packaging Container]

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. [Titan Chargeuses Cheap Small Log China Mini Digger Loader with European Quick Hitch]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.*Information Circular*9170, 94. US Bureau of Mines. [Karaoke Wireless Portable Wooden Bluetooth PA Speaker]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York. [Zl08f Wheel Loader with Rops Cab]

USBM. 1987.High-Performance Three Phase Frequency Converter 380V 50/60Hz,Electric Motorcycle -metallic minerals expected fossil fuels in the United States and Canada.*Openfile report*10-87. US Bureau of Mines, Denver, CO. 134 pp. [Computerized Hydraulic Servo Tensile Testing Machine]

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. [300/650ml/ 1L Plastic Shampoo Cosmetic Pump Bottle]

Paper received Apr. 2015

Revised paper Received Jul. 2016

Powersoft Professional Line Array Active Subwoofer Column System DSP PRO Audio Speaker PA Ml15SAAct Best Seller CNG LPG Gas Car EmulatorCorresponding author