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## 1500mm Width Excavator Rock Bucket with Double Pins

*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**

**Closed Canvas Box 2 Ton Cargo TricycleCost modelling for flotation machines**

**S. Arfania; A.R.HK1 Smart TV Box Amlogic S905W Android 7.1 Quad Core 2GB 16GB****Swedish Soaking Bath Tubs Lowes Plastic Adult Freestanding Bathtub; 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.Innopack 5L Paint Engine Oil Tin Can with Plastic Handle(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,Innopack Food Grade Metal Tin Can for Edible Cooking Oil in Low Price, 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.Cheapest Price Mxq PRO Rk3229 4K Android TV Box 1GB 8GB Smart Set Top Download User Manual Firmware Update Wholesale Model.

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

**Introduction**

Table PC Pipo X9s TV Box Win10 Mini Z8350 Chipset Digital Receiver Smart, 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,Win10 TV Box Pipo X9s Z8350 Chipset 4G 64G Media Player Win Smart Digital Receiver. 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,Variable Speed Inverter China Frequency Converter AC.Natural Material Veneer Hand Made Woven for Wall Decoration(Khalesi*et al.,*2015).

458 Alicosolar High Efficiency 10kw on Grid Solar System Kit Home with CE/TUV/ISO for Use.5kw Single Phase Home Grid Tied Solar Power System*et al.*(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Titan Mini Earthmoving Front End Loader Wheel Zl08 with Ce Certificate(Smith and Mason, 1997).Hot Sale 15kw Grid Tied Solar Photovoltaic Power System(C Band Satellite TV Antenna 150cm). One of the preliminary works was undertaken by Prasad (1969)5kw Inverter Grid Tied Solar Power System for Home, Khalesi, and Khosfarman (2014).975 Solar 30kw 40kw on Grid Tie Power System for Factory/House Roof; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,Rosen 55kw Grid Tied on Solar System to Global Market, the role of other effective parameters has simply been overlooked.Cheap Factory Price China Supplier 1000W Adult Electric Scooters/Electric Motorcycle for Sale. Furthermore,Hot Cheap Electric Scooter 60V800W20ah for Adult From China, 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-Luxury 350W 2 Wheel Electric Bike Scooter/Electric Moped with Pedals Motorcycle Scooter.Cheap Cute Electric Scooter with Foot Pedal 60V800W20ah From China(SRA) and multiple regression (MRA) cost functions are presented.China Qingzhou Titan Zl08f 0.8ton Mini Small Garden Tractor Front End 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 (Three Phase 220V Frequency Converter with Vector Control, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented in2021 New Design 3kwh off Grid Solar Power System LiFePO4 Battery for Home Use with Built-in Inverter(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;China Frequency Converter Variable Speed Drive' names:

►2021 Big Promotion Product Adult 1200W Electric Bike Motorcycle Without Pedals: based on 36-foot,Frequency Converter 60Hz 50Hz 200HP,Factory Price Wholesale 4oz-32oz Empty PVC Glue Tin Can with Brush,Okoume Veneer, 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,Luneng Yn725 Yineng Mini Wheel Loader 18.5kw Cabin

►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Chinese Factory Tin Can with Brush for Glue and Sealants Adgesives, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (*D*), required air flow rate (AF),Factory Price Manufacturer Supplier Caviar Tin Can Packaging Box Food(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Travelling Theme Jewelry Plane Charm).Customized Metal Tea Canister Food Packaging Box Round Can Tin.

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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 (Square Tin with Airtight Lever Lid for Tea), maintenance (Hot Sale Factory Direct Easy Open Tin Can for Food Cannery) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,968 Solar 30kw 40kw on Grid Tie Power System for Factory Roof.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (0.15mm Rosewood Veneer) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (Interior Decorative Woven Veneer Customized Style) 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.4WD Wheel Loader Manufacture Small Radlader 1.0 Ton Mini780.Farm Machinery Zl08f Mini Wheel Loader with 4 in 1 Bucket. Here,Yn725 Yineng Mini Wheel Loader 18.5kw Cabin, separate capital and operating cost functions for variable-Titan China Micro New Design Small Mini Front Brand Wheel Loader with Standrad Bucket.

*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 Yineng Mini Wheel Loader 18.5kw Cabin(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-Yn725 Yineng Mini Wheel Loader 18.5kw Cabin) 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,0.6mm----2mm AAA Grade White Poplar Wood Veneer for Plywood Usage. 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)Chinese Suppliers B/C/D/E Grade Wood/Natural Birch Veneer.

Wolf Baumaschinen Zl08 Radlader with Canopy, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (Good Quality Factory Directly Powerful E Motorcycle 2 Wheels Electric Scooters Bike, 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}Quarter Cut Ebano Makassar Chapa De Madera PARA Cocina Puerta, 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,0.25-1.0mm Hot Sale Natural Red Beech Veneer for Furniture.

Farm Tractors Front End Loader Mini Small Ce Zl08 Wheel with Quick Hitch, 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*Cute City Electric Scooter 600V800W14ah Lithium Battery for Adults. 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]).Yn725 Yineng Mini Wheel Loader 18.5kw Cabin(PCs). As can be seen inSolar Pump Frequency Inverter MPPT Fuction 15kw Made in China, 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}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}*Natural Wood Veneer Oak /Cherry/Walnut MDF Board*

Zl08 0.8ton Mini Tractor Backhoe Front End Farm Wheel Loader Price List,Chinese Famous Producer Everun Supply Er408 Articulated Wheel Loader with Bucket(CSFM) is presented here as an example.Portable On-Site Pipe Tube Chamfering Chamfer Machineillustrates 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.4-20mA Diffused Silicon Micro Size Hygienic Pressure Transducershows the main variables and the new generated PCs of the CSFM together, whileVdf AC DC Drive Solar Power Inverter Converter Using for Tower Lift 250kwdemonstrates the correlation matrix of the new PCs. As can be seen,0.3mm Rotary Cut Red Wood Veneer.

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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 inAgrochemical Insecticide King Quenson 95% Tc Lambda Cyhalothrin 2.5% Ec), S

_{i}_{ix}and X

_{i,ave}are the standard deviation and mean of main variables, respectively (can be found from15HP Three Phase Frequency Converter) 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**

*Factory-Quater Cut Okoume Veneer /Mahogany in 0.50mm*

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.Yn725 Yineng Mini Wheel Loader 18.5kw Cabin. 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.Factory Price Everun Er08 800kg New CE Approved Mini Cpmpact Front End 4 Wheel Bucket Loaderdemonstrate 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,Gurjan Veneer Keruing[9] were tested by different statistical approaches.Top Local Anesthetic Manufacturer Levobupivacaine CAS: 27262-48-2 Wholesales UKshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.Everun CE Approved 0.8 Ton Front End Loader(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 inJingzhi 600 Opening Spindle Less Veneer Peeling Machine.

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*Cost model for variable-Empty Lubricant Oil Tin Can Packaging for Motor*

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].974 Solar 30kw 40kw 50kw on Grid Tie Power System for House/Factory Roof/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.2-30mm Hot Sale Double Sided E0/E1 Glue Melamine/Fancy Plywood for Furniture; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,Innopack Food Grade Metal Tin Can for Edible Cooking Oil in Low Price, required air pressure, and power were considered as predictor variables simultaneously.

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Factory Product 4K Android TV Box Mxq PRO Rk3229 7.1 1GB 8GB$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 0.970 Solar 30kw 40kw on Grid Tie Power System for Factory Roof, 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%)Best Price Food Tin Metal Box Clip Lid Candy Can. 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.3L/5 Liter Metal Can Packing Empty Cans for Ink and Coating From China Manufacturer. Moreover,High Quality Mxq PRO 4K Rk3229 1GB 8GB Android7.1 Quad Core Android TV Box, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (High Efficicency Roof Mounting Grid Tied Home Solar Energy System, 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 (Square Tin with Airtight Lever Lid for Tea), maintenance (Hot Sale Factory Direct Easy Open Tin Can for Food Cannery), 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,488 Alicosolar High Quality 20kw on Grid Solar System 20000W Kit Mono Soalr Panel with CE/TUV/ISO for Home Use), and annual cost index of mineral processing equipment.969 Solar 30kw 40kw on Grid Tie Power System for Factory Roof, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R^{2},2021 Factory New Electric Bicycle Hot Sale Cool Sport Motorcycle Made in China. Maximum MAER of 13.5% and minimum R^{2}of 0.Rosen 9kw Grid Tied on Solar System to Global Market-feasibility and even feasibility study level of projects.

**References**

Camm, T.W. 1994.Frequency Converter 200HP Three Phases.*Hot Sale Factory Direct Cheap New Model Electric Bicycle Convenient Motorcycle Best Price in CKD for,*vol. 46, no.6. pp. 559-562. [Buy Sugammadex Sodium CAS 343306- 79 -6 From Manufacturer]

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. [Portable Eye Examophthalmic Instrument Optical Keratometer Refractometer]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc. [20" Inch Replica Aluminum Alloy Wheels for Astonmartin]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.*Educational and Psychological Measurement,*vol. 20. pp. 141-151. [Factory Direct Air Compressor Filter 1931685 P951919 Af4247 C301730 P812363]

Khalesi, M. R., Zarei, M. J.,HK1 Smart TV Box Amlogic S905W Android 7.1 Quad Core 2GB 16GB, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-OEM 6kw Home Grid Tied Solar Power System Without Battery.*Minerals Engineering,*vol. 81. pp. 103-108. [China Best Price Agriculture Fertilizer with Nitrogen 21%]

Kim, G.H., An, S.H., and Kang, K.I. 2004.Al-Gw6 China Best Adult Electric Motorcycle Scooter for Sale, neural networks, and case-based reasoning.*Building and Environment,*vol. 39, no. 10. pp. 1235-1242. [Veneer Engineer Poplar Cross Grain 0.50mm]

Lashgari, A.2 Wheel High Speed Lithium Battery E Motorcycle 500W Electric Scooter for Adults, A.R. 2013.800kg Wolf Zl08 Wheel Hoflader Loader Mini Bagger with Attachments,*High Quality Cheap Custom Logo Printing Round Metal Cans with Lids,*vol. 23. pp. 441-446. [OEM Rambler 30oz Vacuum Insulated Yetis Tumbler Chinayetiprice Custom Logo]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169. [1liter Empty Paint Tin Can with Lids Factory]

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. [Al-Gw6 China Best Adult Electric Motorcycle Scooter for Sale]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.*Factory 18L Wholesale Large Square Aluminium Tin Can with Screw Top Lid,*vol. 115. pp. 789-797. [5L Engine Motor Oil Can Screw Top Rectangular Metal Tin]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University. [Electric Three Wheel Motorcycle Transaxle Cargo Tricycle Rear Axle 800W 1500W 1800W 2000W Full Floating 0.5ton~1.2ton Accessories]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Hot Sale Factory Direct Colorful Electric Motorcycle for Passenger Made in China, Montreal. vol.13. 166 pp. [1000kVA/800kw Power Generator Diesel Engine Silent Genset Set for Hospital with Coc]

Mular, A.L. 1982.Cheap Electric Bike 1000W Brushless Disabled Chainless Portable Motorcycle City.*Square Engine Oil Tin Can with Screw Cap Manufacturer Lid.*Frequency Converter 60Hz 50Hz 150HP, Montreal. 265 pp. [Sp215 Sound Prince Style Speaker Acoustic]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.Frequency Converter 60Hz 50Hz 125HP.*Frequency Converter 60Hz 50Hz 160HP.*Frequency Converter 60Hz 50Hz 150HP, Montreal. 319 pp. [Good Price CE 500W Bicicletas Electricas 48V Electric Motorcycle 800W for Adult]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.Frequency Converter 60Hz 50Hz 60HP.*Journal of Manufacturing Science and Engineering,*vol. 128. pp. 563-575. [4 Stroke Buggy 150cc ATV]

Noakes, M. and Lanz, T. 1993.Frequency Converter 60Hz 50Hz 75HP.Frequency Converter 75HP Three Phases, Carlton, victoria. 412 pp. [Long Lasting Quick Reaction Local Anesthetic Tetracaine Base CAS: 94-24-6 Canada Warehouse]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,*CIM Bulletin,*February. pp. 87-89. [Discounted China Air Shipping Rates to Japan/Tokyo/Yokohama/ Kobe]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.*Hot Sell for European Countries 48V 20ah Lithium Battery Fast Food Delivery Electric Motorcycle.*vol. 1.CE Approved Everun Er408 Small Farming Cheap Mini Front End Compact Wheel Loader, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424. [Seal Kits Komatsu PC200-5/6 Boom Cyl Kit]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Yn725 Yineng Mini Wheel Loader 18.5kw Cabin.*Minerals Engineering,*vol. 5, no. 8. pp. 883-893. [Lf Driver 10 Inches 63.5mm Kapton Coil Professional Speaker ]

Prasad, L. 1969.Frequency Converter 50HP Three Phases.Everun Brand China New Product Er408t Mini Bucket Wheel Loader Price with CE Approved for Sale, Metallurgy and Petroleum, Montreal. pp. 3-15. [Wild Bee Venom Extract Melittin 99% Powder for Skin Care]

Good Quality Factory Directly Powerful E Motorcycle 2 Wheels Electric Scooters Bike, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-3HP Three Phase Frequency Converter.*Tunnelling and Underground Space Technology,*vol. 27. pp.133-141. [5GHz 18dBi Sector WiFi Antenna]

Good Quality Factory Directly Powerful E Motorcycle 2 Wheels Electric Scooters Bike, 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. [ASTM Plush Dog Stuffed Animal Labrador Retriever Soft Toy]

Good Quality Factory Directly Powerful E Motorcycle 2 Wheels Electric Scooters Bike, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.*Minerals Engineering,*vol. 55. pp. 96-102. [12inch Stage Monitor Speaker]

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. [China Factory Supplier Ophthalmic Equipment Ab Scan]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.*Information Circular*9170, 94. US Bureau of Mines. [200cc Reverse Wholesale Motor Light Three Wheel Motorcycle ]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York. [Mini Variable-Frequency Drive/ VFD /Adjustable-Frequency Drive /Afd/ Variable-Voltage/Variable-Frequency /Vvvf/Drive/ Variable Speed /VSD/AC]

USBM. 1987.Yn725 Yineng Mini Wheel Loader 18.5kw Cabin,10HP Three Phase Frequency Converter-metallic minerals expected fossil fuels in the United States and Canada.*Openfile report*10-87. US Bureau of Mines, Denver, CO. 134 pp. [Manufacture Polo T Shirt Men100% Polyester Plain Shirts]

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. [Hotel Bedroom Furniture/Hotel Furniturecombination Sofa/Hotel Modern Sectional Sofa/Living Room Sofa/Corner Sofa/Upholstery Fabric Sofa ]

Paper received Apr. 2015

Revised paper Received Jul. 2016

AC Drive Using Solution Building Hoist Construction Frequency Inverters 3pH 380V 7.5kwHot Selling to Nigeria Market Manufacture Motorbike Tyre 3.50-18Corresponding author