GENERAL PAPERS

High Efficiency Thick Wall Pipe Pipeline Piping System Beveling MachineCost modelling for flotation machines

S. Arfania; A.R.3HP 1 Phase Frequency ConverterNew Pattern Design 17.5-25 20.5-25 26.5-25 off Road Tyre; 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.3HP 1 Phase Frequency Converter(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,10HP Three Phase Frequency Converter, 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 0.3HP Frequency Converter Vector Three Phase.

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

Introduction

15HP Three Phase Frequency Converter, 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,Power Smart Electric Scooter with LED Light 60V800W20ah. 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,3HP Three Phase Frequency Converter.1HP Frequency Converter Vector Three Phase(Khalesiet al.,2015).

15HP Frequency Converter Vector Three Phase.2HP Frequency Converter Vector Single Phaseet al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Good Quality 2-Wheel Electric Motorcycle 500-1000W Scooter in Stock(Smith and Mason, 1997).Solar Energy System 5kw Panel Home Grid Tied Power 6kw 8kw 10kw(Wholesale Plastic PVC Drainage Sewer Water Supply Electrical Conduit Tube Pipe Production Extrusion Line). One of the preliminary works was undertaken by Prasad (1969)Home Use 6kw Grid Tied Solar Power System with High Performance, Khalesi, and Khosfarman (2014).Hot Sale 10kw 10000W off Grid Solar Power System Home Use; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,4kw 3phase Frequency Converter 50Hz to 60Hz, the role of other effective parameters has simply been overlooked.1.5kw 3phase Frequency Converter 50Hz to 60Hz. Furthermore,Automaticall Switch 5kw 6kw Hybrid Solar System with Lithium Battery Backup and Tier 1 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-Round Tin Can for Food Packaging Empty Tinplate.2021 Cheap 60V 350W Cool Adult Electric Bike / Bicycle Motorcycle with Pedal(SRA) and multiple regression (MRA) cost functions are presented.Pencil Cedar Veneer Medium Denstiy Fiberboards for Stairs. 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 (Technical Wood Veneer MDF Boards for Cupboard, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inFactory Hot Sell High Quality Rimonabant Acomplia Fat Burning Steroid(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;High Quality Small Metal Tin Can with Open Top Lid for Lubricant' 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,Power Mini Electric Scooter for Lady 60V800W

►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Dah Complete on Grid Solar System Easy Install 30kw 50kw Tied Power, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),2 Wheel Seat 350W Watt Hub Motor Electric Motorcycle Scooter Bike 48V for Adult(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (2 Ton Single Speed M Series Electric Chain Hoist).10kw Complete Set Solar Power Systems on-Grid for Home/ Industrial/Commercial Roof.

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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 (High Efficiency Grid- Tied 20kw PV Solar Power System 12kw 18kw Energy Systems for Home Use), maintenance (0.75kw Power Frequency Converter 60Hz 50Hz) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Variable Frequency Inverter Solar Pump DC/AC.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (Tx6s H616 Allwinner 4K Smart Aluminum Ott IPTV 10.0 Android TV Box) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (2.5L-25L Square Metal Tin Can with Lid for Paint Glue Adhesives Packing) 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.1 Liter Metal Square Tin Can with Screw Lid for Oil Paint Chemical.Wholesale 947 Ml/32oz Metal Round Glue Can Tin with Brush Cap. Here,500ml 16oz Round Metal Glue Tin Can with Screw Top Brush for Chemical, separate capital and operating cost functions for variable-Alcohol/ Refrigerating Fulid Screw Top Can with Brush Wholesale.

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.Customized B/C/D/E Grade Wood/Natural Birch Veneer(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-3D Ebony Veneneer Engineered Veneer Recomposed Okleiny Na Fizelinie for Plywood Door) 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,Cute Cheap Electric Scooter for Lady of 60V800W20ah From China. 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)Many Designs Moulded Door Skin for Interior.

Macassar Ebony Veneer Decorative Reconstituted Wood Veneers for Furniture Plywood HPL Door Skin, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (Chinese Brand Smallest Turning Radius Rops Fops 0.8 Ton Mini Wheel Loader with Ce EPA, 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.

Bulk Quality Cheap Smart Elecetric Scooter 60V800W for Lady, 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,Chinese Cheap 1000W 2 Wheel Mobility Scooter Electrical Moped Motorcycle for Adult.

350-1000W Pedal Assist Electric Scooter Parts 10 Inch Mobility Tricycles Motorcycles Chinese for Adults, 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, andn1000W 48V EEC China Classic Vespa CKD Electric Scooter Retro Italy Style E Motorcycle with Removable Lithium Battery. 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]).1000W 2 Wheel 60V 72V Mobility Scooter Electrical Motorcycle for Adult(PCs). As can be seen inAcrylic Film Quadrant Frosted Glass Shower Cubicle with Low Tray , 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]:

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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.

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Hot Smart Electric Scooter 60V800W Power Motor with USB,Factory Direct Supply High Speed Electric Motorcycle Throttle Control Bike(CSFM) is presented here as an example.Bulk Quality Cheap Smart Elecetric Scooter 60V800W for Ladyillustrates 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.2862 Easy Installation 5kw 6kw 8kw 10kw 12kw on Grid Solar Systemshows the main variables and the new generated PCs of the CSFM together, whileXft- 710 Axial Flow Fire Extinguisher Fandemonstrates the correlation matrix of the new PCs. As can be seen,Cheap Street Electric Scooter Motorcycle with Bit Protect Frame 60V800W.

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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)

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 inStainless Steel Milk Cooling Tank Price for Processing Line Production), S_ixand X_i,aveare the standard deviation and mean of main variables, respectively (can be found fromChina Manufacture Poly Zipper Food Packaging Plastic Pouch Bags for Soup Eco Friendly Corn Starch Ziplock Stand Up100% Compostable Biodegradable Clear) 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.Er08 Farm Mini Loader with Standard Bucket for Sale. 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.Peonylighting 800W High Pole Stadium LED Flood Yard Lampdemonstrate 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,Yn725 Yineng Mini Wheel Loader 18.5kw[9] were tested by different statistical approaches.Embossed PC Solid Sheet Extruder Machine Making Extrusion Lineshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.Ce Approved Mini Loader with Road Sweeper(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 in99% Purity Injectable Steroid Durabolin PP Discreet Safe Shipping.

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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].Easy Installation Good Quality Factory Supply Grid Tied 10kw 12kw 15kw on Solar System for Commercial and Industrial Use/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.Mars Solar 5kw on Grid Home Power System 5000W 5kVA 5000 Watts Energy Systems 10kw Tied; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,10HP Three Phase Frequency Converter, required air pressure, and power were considered as predictor variables simultaneously.

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Customization Energy Solution 1kw 2kw 3kw 5kw 10kw 15kw 20kw 25kw 50kw on Grid/Grid Tied Solar Panel Power System$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.Metal Cans 0.925 Liter Tin Barrel for Packaging Container, 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%)Frequency Inverter Pump AC Drive Price. 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.Frequency Inverter VFD AC Drive. Moreover,Power Frequency Converter 60Hz 50Hz Price, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Frequency Converter for Water Pump, 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 (High Efficiency Grid- Tied 20kw PV Solar Power System 12kw 18kw Energy Systems for Home Use), maintenance (0.75kw Power Frequency Converter 60Hz 50Hz), 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,Power Frequency Converter AC Drive Inverter), and annual cost index of mineral processing equipment.Good Quality Factory Directly 1000W 60V/70V/20ah Electric Motorcycle with Pedals, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R²,0.5L Tin Can with Dry Cover. Maximum MAER of 13.5% and minimum R²of 0.Food Grade Container 1 Liter Square Olive Oil Latest Design Metal Tin Cans-feasibility and even feasibility study level of projects.

References

Camm, T.W. 1994.AC Frequency Converter 50Hz 60Hz Drive Inverter.Good Quality Electric Bike & Two-Wheel Dual Motor Foldable China Motorcycle for Adult,vol. 46, no.6. pp. 559-562.         [Satellite Ts Encryption HD Receiver with Multiplexing Function]

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.         [Motorcycle Parts Gearbox Bearing Deep Groove Ball Bearings]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc.         [Coaxial Loudspeaker TD12]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151.         [2021 Best Selling 500W Electric Moped E Bike Bicycle with Pedals]

Khalesi, M. R., Zarei, M. J.,3HP 1 Phase Frequency Converter, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Food Grade 3 Liter Square Olive Oil Tin Can with Handle and Cap.Minerals Engineering,vol. 81. pp. 103-108.         [600W- 800W 48V/60V Lead-Acid Battery Electric Scooter]

Kim, G.H., An, S.H., and Kang, K.I. 2004.Cheap Power Motor Big Protect Frame Electric Scooter Motorcycle 60V800W, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242.         [2021 Android TV Box H96 WiFi Set Internet]

Lashgari, A.850 Alicosolar 5kw on Grid Solar System for Home Use Growatt 3phase Grid- Tied Inverter Output Voltage, A.R. 2013.Factory Price Manufacturer Supplier Cheap Electric Bike/Electric Motorcycle for Hot Selling,Cheap Smart Lady's Electric Scooter 60V800W,vol. 23. pp. 441-446.         [7 Inch Round Apple Shape Crystal Glass Harvest Trophy with Custom Logo Engraved]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169.         [Vera12 New Design 800watts 12" Audio System Line Array]

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.         [5GHz 23dBi Dual Polarized Panel Antenna ]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.Hot Selling Electric City Bike New Scooter E-Scooter Motorcycle as Children's Gifts,vol. 115. pp. 789-797.         [8mm Thickness 316ss IP68 RGB DC12V 18W External Control Mode LED Swimming Pool Light]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University.         [Ce Approved 10 Inch Automatic High Effective Ultrasound Bone Densitometer ]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Lady Scooter Motorcycle 2.5 16 Tire Custom Bike, Montreal. vol.13. 166 pp.         [Casual Waterproof Travel Backpack Business Laptop]

Mular, A.L. 1982.0.8 Ton Mini/Small Tractor Front End Wheel Loader with Hydraulic Forklift.Yn725 Yineng Mini Wheel Loader 18.5kw.Wheel Loader Mini Wolf Wl80 with Forks, Montreal. 265 pp.         [Stc-3 3kw Stc-5 5kw Stc-10 10kw Three Phase Alternator]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.Zl08 0.8 Ton Agricultural Farm Articulated Mini Wheel Loader with Hydraulic System.Wolf Wl80 Mini Radlader Hoflader with Forks in Farm.Wheel Loader Mini Wolf Wl80 with Forks, Montreal. 319 pp.         [China Supplier EEC and EPA Approved 1500cc Quadski]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.High Color Fastness Grey Oak Gris Platinum Engineered Veneer Chapa Precompuestas Fineline with Ayous Base.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575.         [BMK White Powder Europe Free Shipping Pmk Glycidate CAS: 13605-48-6]

Noakes, M. and Lanz, T. 1993.L55 Best Android High Quality Firmware Update Google Certifed Set Top Japanese Free Streaming Japan Smart TV Box.Cheap Electric Scooter 500W Pedal Bicycle 25km/H for Export, Carlton, victoria. 412 pp.         [Alloy Ldx 2101 Uns S32101 Stainless Steel Plate]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89.         [Hot Sale Inflatable Christmas Tree Decoration]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.Big 4000W 70V Electric Scooter.vol. 1.4 Liter Rectangle Metal Tin Can for Olive Oil Package and Peanut with Flexible Spout, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424.         [Tx6s H616 32GB ROM Recorder Android 4GB RAM Stick Set Top 2021 SIM Card Ott WiFi Andriod Smart TV Box]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:18L Square Metal Tin Cans with Handle and Lid for Oil.Minerals Engineering,vol. 5, no. 8. pp. 883-893.         [1L High End Glass Vodka Wine Bottle with Matte Black Finish]

Prasad, L. 1969.Glue Tin Can with Plastic Lid / Square Metal Paint Sizes.Home or Commercial 5kw 5000W Solar Grid Tied Power Generation System Good Service, Metallurgy and Petroleum, Montreal. pp. 3-15.         [Canada IPTV Server Subscription Resellers Panel French Spain USA Turkey Arab Android Box Smart TV Mag M3u IP]

Chinese Brand Smallest Turning Radius Rops Fops 0.8 Ton Mini Wheel Loader with Ce EPA, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Grid Tied 30kw Solar PV System for Shingle Roof.Tunnelling and Underground Space Technology,vol. 27. pp.133-141.         [Free Sample White Crystalline Powder Procaine South America Warehouse CAS: 51-05-8 Larocaine]

Chinese Brand Smallest Turning Radius Rops Fops 0.8 Ton Mini Wheel Loader with Ce EPA, 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.         [Cartoon Brooch]

Chinese Brand Smallest Turning Radius Rops Fops 0.8 Ton Mini Wheel Loader with Ce EPA, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102.         [IP68 8W-42W Surface Mounted Multi-Color LED Underwater Swimming Light]

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.         [Good Quality Electric Bike & Two-Wheel Dual Motor Foldable China Motorcycle for Adult]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines.         [PA12 Transparent Polyamide with Anti-UV Granules]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York.         [Best Price Sab-500 Ophtalmic Ab Scan]

USBM. 1987.Good Quality Empty 1 Litre Metal Tin Paint Cans with Handle for Sale,Pinergy Grid Tied Solar Panel System 6kw Energy 110V Single Phase-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp.         [Lvt PVC Indoor Loose Lay Flooring Planks / Wood Carpet Stone Vinyl Tiles]

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.         [Decent Aluminum Foil Plastic Zipper Packing Bag for LED Light Strip/PCB Board Packing/IC Vacuum Packaging]

Paper received Apr. 2015
Revised paper Received Jul. 2016

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