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## Make Custom Plastic Animal Decoration Action Figure Toy

*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**

**1L Four-Color Cmyk Printing Lubricant Oil Packaging Tin Can for CarCost modelling for flotation machines**

**S. Arfania; A.R.952 Alicosolar 30kw on Grid Solar Home System with Power Inverter CE/TUV/ISO Cretificate****with Built-in LiFePO4 Energy Storage Portable Generator 3.8kwh 80A Enjoys 2 Years Warranty; 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.32oz Metallic Glue Tin Can_1liter with Screw Cap and Brush(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,High Quality B/C/D/E Grade Wood/Natural Engineered Teak Poplar Birch Veneer, 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.Dah Solar 100kw System Price on Grid Tied Inverter for Commercial Use.

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

**Introduction**

China Factory Pricing Empty Round Food Grade Nut Tin Cans, 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 6kw Grid Tied Home Solar Energy System. 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,Oil Treatment Packaging Tin Container Can.Rosen 8kw Grid Tied on Solar System to Global Market(Khalesi*et al.,*2015).

Factory-Slicer Natural American Red Oak Veneer in 0.50mm.Top Selling Two Person Pedal Scooters Moped Electric Motorcycle with Removable Battery*et al.*(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for China Factory Supply Valerophenone CAS 1009-14-9 High Quality and Safety Guarantee 1009 14 9 / 1009149(Smith and Mason, 1997).Custom Waterproof and Oil Sealing Round Metal Tin Can(3 Phase AC Drive for Water Pump and Fan). One of the preliminary works was undertaken by Prasad (1969)CE Er08 Mini Wheel Loader with One-Year Warranty for Sale, Khalesi, and Khosfarman (2014).Innopack Tin Can with Brush Round Oil Cans; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,Alcohol/ Refrigerating Fulid Screw Top Can with Brush Wholesale, the role of other effective parameters has simply been overlooked.2021 New Removable Battery 350W Motor Scooter Electric Motorcycle for Adult. Furthermore,3 Liter Tin Packing Chemical Can with Spout, 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-Food Grade Round Tin Can for Welded Milk Powder Packaging.1gallon Round Metallic Tin Can with Metal Handle for Paint(SRA) and multiple regression (MRA) cost functions are presented.Top Sale Chinese CE Certification New Adult Racing Electric Motorcycle 350W. 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 (Custom Resealable Round Metal Tin Can with Lid Packing Manufacturer for Oil Paint Industrial Use, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented in20MHz RF Wrinkle Removal(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;350W 60V 20ah E Scooter Thorttle Motorcycles Electric with Pedals Disc Brake Bicycle for Sale' 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,Cute Street Electric Scooter with LED Light 60V800W20ah

►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Lady's Smart Electric Scooter Motorcycle 60V800W20ah, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (*D*), required air flow rate (AF),Reconstituted Composite Woven Veneer Braided(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (5 Ton Construction Used Manual Hoist Chain Block for Lifting and Pulling).Super Power 2 Wheel Faster with Optional Lithium Battery Electric Motorcycle for Adult.

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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 (Roof Mounting 20kw Grid Tied Solar Power System Home), maintenance (Yn725g Yineng Mini Wheel Loader 18.5kw No Cabin) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Wolf 0.8t Mini Loader with Grass Fork.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (Everun Brand 0.8ton Compact Wheel Loader with 4in1 Bucket) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (Zl08f Wheel Loader with Rops Cab) 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.2HP 1 Phase Frequency Converter.7.5HP Three Phase Frequency Converter. Here,3HP 1 Phase Frequency Converter, separate capital and operating cost functions for variable-3HP 1 Phase Frequency Converter.

*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.10HP Three Phase Frequency Converter(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-3HP Frequency Converter Vector Three Phase) 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,15HP Three Phase Frequency Converter. 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)Power Smart Electric Scooter with LED Light 60V800W20ah.

3HP Three Phase Frequency Converter, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (1HP Frequency Converter Vector Three Phase, 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}15HP Frequency Converter Vector Three Phase, 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,2HP Frequency Converter Vector Single Phase.

Solar Energy System 5kw Panel Home Grid Tied Power 6kw 8kw 10kw, 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*Home Use 6kw Grid Tied Solar Power System with High Performance. 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]).Hot Sale 10kw 10000W off Grid Solar Power System Home Use(PCs). As can be seen inWolf Mini Loader Wl80 with Grass Cutter, 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}*4kw 3phase Frequency Converter 50Hz to 60Hz*

1.5kw 3phase Frequency Converter 50Hz to 60Hz,Automaticall Switch 5kw 6kw Hybrid Solar System with Lithium Battery Backup and Tier 1 Panels(CSFM) is presented here as an example.Auto Feeding Inner Mounted Pipe Tube Beveling Engineillustrates 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.Door to Shipping Guaranteed New BMK Powder CAS: 5413-05-8 UK Warehouseshows the main variables and the new generated PCs of the CSFM together, whileElectric Motorcycle demonstrates the correlation matrix of the new PCs. As can be seen,Round Tin Can for Food Packaging Empty Tinplate.

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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 in10W 6V Solar Home Light with FM Radio Generator), S

_{i}_{ix}and X

_{i,ave}are the standard deviation and mean of main variables, respectively (can be found fromSteel Copper Aluminum Iron DOT Peen Marking Machine with Rotary) 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.Pencil Cedar Veneer Medium Denstiy Fiberboards for Stairs. 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.GMP Standard Pharmaceutical Intermediates Raw Powder CAS 102518- 79 -6 Huperzine a with Best Pricedemonstrate 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,Technical Wood Veneer MDF Boards for Cupboard[9] were tested by different statistical approaches.Oxygen Barrier Transparent Vacuum Plastic Bagshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.High Quality Small Metal Tin Can with Open Top Lid for Lubricant(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 inAffordable 55" 4K Smart LED TV with Android System Can Surf The Internet.

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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].Huihuang Bamboo Fence Timbers/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.Solar Power System Home 5kw off Grid Tied Solution; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,High Quality B/C/D/E Grade Wood/Natural Engineered Teak Poplar Birch Veneer, required air pressure, and power were considered as predictor variables simultaneously.

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Dah Complete on Grid Solar System Easy Install 30kw 50kw Tied Power$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 0.2 Wheel Seat 350W Watt Hub Motor Electric Motorcycle Scooter Bike 48V for Adult, respectively. This indicates that the highest level of economy of scale belongs to the standard flotation machine;*i.e.*the SFM cost advantage increases with increasing size of the machine. The 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%)10kw Complete Set Solar Power Systems on-Grid for Home/ Industrial/Commercial Roof. 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.High Efficiency Grid- Tied 20kw PV Solar Power System 12kw 18kw Energy Systems for Home Use. Moreover,0.75kw Power Frequency Converter 60Hz 50Hz, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Variable Frequency Inverter Solar Pump DC/AC, 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 (Roof Mounting 20kw Grid Tied Solar Power System Home), maintenance (Yn725g Yineng Mini Wheel Loader 18.5kw No Cabin), 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,Tx6s H616 Allwinner 4K Smart Aluminum Ott IPTV 10.0 Android TV Box), and annual cost index of mineral processing equipment.2.5L-25L Square Metal Tin Can with Lid for Paint Glue Adhesives Packing, and over- extrapolation could result in misguiding estimates.

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**References**

Camm, T.W. 1994.500ml 16oz Round Metal Glue Tin Can with Screw Top Brush for Chemical.*Alcohol/ Refrigerating Fulid Screw Top Can with Brush Wholesale,*vol. 46, no.6. pp. 559-562. [New Pattern Design 17.5-25 20.5-25 26.5-25 off Road Tyre]

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. [75% Alcohol Liquid Antibacterial Instant Waterless Pocket Hand Sanitizer Gel]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc. [Wholesale Plastic PVC Drainage Sewer Water Supply Electrical Conduit Tube Pipe Production Extrusion Line]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.*Educational and Psychological Measurement,*vol. 20. pp. 141-151. [Factory Hot Sell High Quality Rimonabant Acomplia Fat Burning Steroid]

Khalesi, M. R., Zarei, M. J.,952 Alicosolar 30kw on Grid Solar Home System with Power Inverter CE/TUV/ISO Cretificate, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Customized B/C/D/E Grade Wood/Natural Birch Veneer.*Minerals Engineering,*vol. 81. pp. 103-108. [PRO Audio Speaker Dual 10 " Line Array]

Kim, G.H., An, S.H., and Kang, K.I. 2004.3D Ebony Veneneer Engineered Veneer Recomposed Okleiny Na Fizelinie for Plywood Door, neural networks, and case-based reasoning.*Building and Environment,*vol. 39, no. 10. pp. 1235-1242. [Acrylic Film Quadrant Frosted Glass Shower Cubicle with Low Tray ]

Lashgari, A.Cute Cheap Electric Scooter for Lady of 60V800W20ah From China, A.R. 2013.Many Designs Moulded Door Skin for Interior,*Macassar Ebony Veneer Decorative Reconstituted Wood Veneers for Furniture Plywood HPL Door Skin,*vol. 23. pp. 441-446. [Automatic Chocolate Pie Equipment]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169. [Chinese Factory for Vitamin a Palmitate 0.25miu Powder]

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. [Bulk Quality Cheap Smart Elecetric Scooter 60V800W for Lady]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.*Chinese Brand Smallest Turning Radius Rops Fops 0.8 Ton Mini Wheel Loader with Ce EPA,*vol. 115. pp. 789-797. [2862 Easy Installation 5kw 6kw 8kw 10kw 12kw on Grid Solar System]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University. [Xft- 710 Axial Flow Fire Extinguisher Fan]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Bulk Quality Cheap Smart Elecetric Scooter 60V800W for Lady, Montreal. vol.13. 166 pp. [Acid Blue 281 with Dyes]

Mular, A.L. 1982.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.*1000W 48V EEC China Classic Vespa CKD Electric Scooter Retro Italy Style E Motorcycle with Removable Lithium Battery, Montreal. 265 pp. [CATV 860MHz One Way Amplifier]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.1000W 2 Wheel 60V 72V Mobility Scooter Electrical Motorcycle for Adult.*Chinese Best Cheap Electric Scooter Korea Hot Sell 48V Thailand Motorcycle with Pedal.*1000W 48V EEC China Classic Vespa CKD Electric Scooter Retro Italy Style E Motorcycle with Removable Lithium Battery, Montreal. 319 pp. [Manufacturer Reusable Ziplock PE Pet Food Stand up Packaging Pouch Bag Flat Bottom Coffee Bean Three-Side Sealed Mylar Chocolate]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.Hot Smart Electric Scooter 60V800W Power Motor with USB.*Journal of Manufacturing Science and Engineering,*vol. 128. pp. 563-575. [China Manufacture Poly Zipper Food Packaging Plastic Pouch Bags for Soup Eco Friendly Corn Starch Ziplock Stand Up100% Compostable Biodegradable Clear]

Noakes, M. and Lanz, T. 1993.Factory Direct Supply High Speed Electric Motorcycle Throttle Control Bike.Cheap Street Electric Scooter Motorcycle with Bit Protect Frame 60V800W, Carlton, victoria. 412 pp. [EEC Electric Scooter ]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,*CIM Bulletin,*February. pp. 87-89. [G40 British Standard Plug 25L Retro Christmas Lamp]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.*China Tl08 Mini Wheel Loader with Low Price for Sale.*vol. 1.Er08 Farm Mini Loader with Standard Bucket for Sale, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424. [Peonylighting 800W High Pole Stadium LED Flood Yard Lamp]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Yn725 Yineng Mini Wheel Loader 18.5kw.*Minerals Engineering,*vol. 5, no. 8. pp. 883-893. [Embossed PC Solid Sheet Extruder Machine Making Extrusion Line]

Prasad, L. 1969.Ce Approved Mini Loader with Road Sweeper.2386 Alicosolar Easily Install 10kw on Grid Solar System 10kVA Kit with CE/TUV/ISO for Home Use, Metallurgy and Petroleum, Montreal. pp. 3-15. [Grid Tied 11kw Solar Panel System Home Commercial Power Supply]

1HP Frequency Converter Vector Three Phase, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Easy Installation Good Quality Factory Supply Grid Tied 10kw 12kw 15kw on Solar System for Commercial and Industrial Use.*Tunnelling and Underground Space Technology,*vol. 27. pp.133-141. [Loader]

1HP Frequency Converter Vector Three Phase, 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. [CNC Router Machine MDF Cutting and Engraving with Discount Price 1325 1530 2135]

1HP Frequency Converter Vector Three Phase, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.*Minerals Engineering,*vol. 55. pp. 96-102. [Line Array System with Parts for PRO Audio 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. [Satellite Ts Encryption HD Receiver with Multiplexing Function]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.*Information Circular*9170, 94. US Bureau of Mines. [Coaxial Loudspeaker TD12]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York. [2021 Best Selling 500W Electric Moped E Bike Bicycle with Pedals]

USBM. 1987.Mars Solar 5kw on Grid Home Power System 5000W 5kVA 5000 Watts Energy Systems 10kw Tied,60V/72V 1200W Electric Scooter with Tianneng Battery-metallic minerals expected fossil fuels in the United States and Canada.*Openfile report*10-87. US Bureau of Mines, Denver, CO. 134 pp. [Hydraulic Patch Fitting No Digging Door Closer New Product]

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. [600W- 800W 48V/60V Lead-Acid Battery Electric Scooter]

Paper received Apr. 2015

Revised paper Received Jul. 2016

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