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*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**

**3 pH 90kw Supply Motor Speed Controller Power Inverter Diving CompressorCost modelling for flotation machines**

**S. Arfania; A.R.Natural Wood Bintangor Face Veneer for Door and Furniture****K10 K20 P30 Tungsten Carbide Plate Strips for Cutting; 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.Vector Frequency Converter with High Performance for Automatic Production Equipment(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,Natural Horizontal Bamboo Veneer for Panel Board, 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.Frequency Converter with SVC and Vf Control 380V 50/60Hz.

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

**Introduction**

Electric Motorcycle , 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 Frequency Converter Three Phase 380V 50/60Hz. 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,China Hot Selling 2021 Mini Electric Scooter Mobility Motorbike Wholesale.Electric Motorcycle (Khalesi*et al.,*2015).

Electric Motorcycle .Electric Motorcycle*et al.*(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Dual 6inch Loudspeaker for Coffee Room Restaurant Conference Speakers(Smith and Mason, 1997).Electric Motorcycle (Super 20MHz RF Beauty Machine). One of the preliminary works was undertaken by Prasad (1969)750ml Metal Tin Can Container for Chili Oil Canning, Khalesi, and Khosfarman (2014).Hot Sale Food Packaging Tin Can for Cooking Oil with Plastic Lids; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,Metal Engine Oil Can Recycling Lubricant Tin Packaging Container, the role of other effective parameters has simply been overlooked.2L Galvanized Tin Cans for Cooking Oil with Plastic Lids. Furthermore,Electric Motorcycles , 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-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(SRA) and multiple regression (MRA) cost functions are presented.800W Aluminium Alloy Wheel Hubs Sport Electric Motorcycle. 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 (Zl08 Chargeuse Wheel Loader, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inKraft Paper &Plastic Foil Laminated Mylar Food Packaging Container(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;Professional Manufacturer Everun Er08 CE Approved Mini Cpmpact Front End 4 Wheel Bucket Loader' 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,OEM 1500W EEC Electric Scooter

►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,New Arrival 4K Smart S905X2 TV Box 4+64GB X96 Mini, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (*D*), required air flow rate (AF),0.25mm Natural Wood Face Veneer(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Kids Play Outdoor Playground British Soldier Board Indicator).2L Empty Tin Container for Engine Oil Lubricant.

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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-Performance Three Phase Frequency Converter 380V 50/60Hz), maintenance (Electric Motorcycle ) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,EEC Electric Scooter .076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (800w /1100w EEC Electric Scooter ) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (Factory Produce Natural Face Veneer Size 1220X1830X0.25mm) 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.Electric Motorcycle/Scooter/Bike .800W EEC Electric Motorcycle. Here,No Foldable 40-60km Range Per Charge EEC Electric Scooter, separate capital and operating cost functions for variable-1 Wheel Electric Motorcycle/One Scooter.

*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.High-Performance Frequency Converter/AC Drive 380V 50/60Hz(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-Three Phase 380V Small Frequency Converter) 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,Hot Sale High Performance Vector Frequency Converter 380V 45/55kw. 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)Single/Three Phase 220V 380V Vector Control Frequency Converter.

Factory-Enginneered Veneer Ash in 0.30mm, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (Small Frequency Inverter 380V 50/60Hz, 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}China Single Phase Variable Frequency Inverter 1.5kw, 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,1.2mm White Poplar Veneer From Factory for Exporting.

Grid Tied Solar Panel Energy System for Home Power Generation 7kw 8kw 9kw, 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*Eucalyptus Core or Birch for Veneer with Grade AA. 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]).Wholesale 1.5 mm Natural Bamboo Skateboard Veneer with Best Price(PCs). As can be seen inKaraoke Wireless Portable Wooden Bluetooth PA Speaker, 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}Zl08f Wheel Loader with Rops Cab

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}*Popular 800W Power Electric Scooter*

1250X2500mm Rotary Cut Okoume Veneer Cheap Prices,Factory Price Everun Er08 800kg New CE Approved Mini Cpmpact Front End 4 Wheel Bucket Loader(CSFM) is presented here as an example.300/650ml/ 1L Plastic Shampoo Cosmetic Pump Bottleillustrates 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.Powersoft Professional Line Array Active Subwoofer Column System DSP PRO Audio Speaker PA Ml15SAshows the main variables and the new generated PCs of the CSFM together, whileAct Best Seller CNG LPG Gas Car Emulatordemonstrates the correlation matrix of the new PCs. As can be seen,2862 Easy Installation 5kw 6kw 8kw 10kw 12kw on Grid Solar System.

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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 inF5 100L Purple Mini Illumination Decorate Party Christmas Pet LED Lamp), S

_{i}_{ix}and X

_{i,ave}are the standard deviation and mean of main variables, respectively (can be found fromMars Solar 350W 360W Panel Complete Power System 30kw Grid Tied Inverter with WiFi for Commercial 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.

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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.Wolf 0.8t 800kg Mini Loader with Euro 3 Engine. 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.Diesel Engine Used for Silent Generator Set with Multy-Cylinderdemonstrate 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,500- 800W 48V 20ah OEM manufacturers Electric Scooter[9] were tested by different statistical approaches.AC to Drive 380V Frequency Inverter 4kwshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.800W Brushless Adult Electric Scooter(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 inCloth baby diapers printed super absorption cloth.

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*Cost model for variable-2021 New Type Fashionable Chinese Supplier Brushless Max Speed 35km/H 2 Wheel Electric Motorcycle*

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].Best Chinese Big Wheel Electric Motorcycle Racing Bike Adult Bicycle/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.Bd600 AC Frequency Inverter/Converter/220 V to 380 Inverter; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,Natural Horizontal Bamboo Veneer for Panel Board, required air pressure, and power were considered as predictor variables simultaneously.

1L Beer Can. Moreover, the operating cost was detailed in different cost items.High Quality Electric Scooter Factory, indicated inDiesel Engine Parts Fuel Injection Nozzle 132s1320, and major extrapolation should be avoided.

Cute Electric Scooter Motorcycle with Pedals 60V800W14ah Lithium Battery for Adults$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 0.1L Panit Can, 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%)1L and 5L Can for Antifreezing Liquid. 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.2021 Fashionable High Quality with Lithium Battery Electric Scooters EEC Vespa Citycoco Newest Model Motorcycle. Moreover,Pump Inverter Variable Frequency Drive Manufacturers AC Supplier, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Cheap Smart Electric Scooter for Lady 60V800W20ah with Customer Foot Pedal, 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-Performance Three Phase Frequency Converter 380V 50/60Hz), maintenance (Electric Motorcycle ), 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,Wenge Veneer Catedral Chapa De Madera Reconstituted Engineered PARA MDF Enchapados), and annual cost index of mineral processing equipment.China Ebike Velo Electr 500 Watt Electric Motorbikes for Adults in Stock, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R^{2},Frequency Inverter Solar Pump Vector Air Compressor Power Transformer. Maximum MAER of 13.5% and minimum R^{2}of 0.Supply China Control Frequency Converter VFD Power Transformer Motor Drive-feasibility and even feasibility study level of projects.

**References**

Camm, T.W. 1994.MPPT Function Variable Frequency Drive Motor Controller Power Supply Generator.*0.75kw-11kw Three Phase 380V Frequency Inverter VFD,*vol. 46, no.6. pp. 559-562. [Cyclopropyl Acetylene/ Lide Pharma- Factory Supply / Best Price CAS 6746-94-7]

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. [Waw- 300b Computer Servo Control Hydraulic Universal Testing Machines]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc. [Professional Speaker Box F12+]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.*Educational and Psychological Measurement,*vol. 20. pp. 141-151. [Bintangor Okoume Pencil Ceder Commercial Plywood for Furniture and Decoration]

Khalesi, M. R., Zarei, M. J.,Natural Wood Bintangor Face Veneer for Door and Furniture, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-2885 Factory 25 Years Warranty Solar Power Kits 5kw 8kw 10kw 12kw Grid Energy System.*Minerals Engineering,*vol. 81. pp. 103-108. [17 Inch 18 Aftermarket New Design Aluminum Car Alloy Rim]

Kim, G.H., An, S.H., and Kang, K.I. 2004.2876 10kw Home Used Solar Power System on Grid Roof, neural networks, and case-based reasoning.*Building and Environment,*vol. 39, no. 10. pp. 1235-1242. [Vitamin a Palmitate CAS 79 -81-2]

Lashgari, A.2879 Free Shipping 10kw 12kw 15kw Home Used Solar Power System on Grid Roof, A.R. 2013.AAA Grade 0.9mm Poplar Core/Veneer for Plywood/Furniture,*Radiate Pine Face Veneer,*vol. 23. pp. 441-446. [Yishan 160HP swamp crawler dozer TS160G with ROPS cab]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169. [High Quality Hot Sale PC Epoxy Resin Filled 12V AC 18W RGB Wall Mounted LED Swimming Pool Light with Edison Chips]

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. [Hair and Eyelash Growth Acetyl Tetrapeptide-3/Capixyl CAS 155149- 79 -4]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.*Grade AA Veneer Furniture Building Material Plywood to Dubai,*vol. 115. pp. 789-797. [8 Sides Sealed Aluminum Foil Bag Thickened Dog Food Packaging Tea Stand up Plastic Mylar Heat /Air/Water Resistant Container]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University. [Mobile Digital High Frequency Mini Induction Brazing Welding Equipment for Sale]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.1L Wholesale Round Tin Can for Paint/Engine Oil with Tight Lid, Montreal. vol.13. 166 pp. [3D Adhesive Car Logos and Their Names]

Mular, A.L. 1982.Manufacturer of Enigine Oil Can.*Small Wheel Loader Wl80 800kg Loaders for Farm Work.*1L Tin Can for Camellia Oil , Montreal. 265 pp. [PE Geomembrane/Waterproof Sheet Extrusion Line]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.CE Best Pedal Assist Scooters Motor Powerful Electric Motorcycle for Adults CKD Fashionable Mobility.*Mxq 4K PRO Allwinner H3 Quad 7.1 1GB RAM 8GB ROM H. 265 3D Android Media TV Box.*1L Tin Can for Camellia Oil , Montreal. 319 pp. [Mini 220V Single Phase Input 2.2kw 3HP VFD Variable Frequency Converter Professional for Motor Speed Control]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.2021 Best Sale Fashionable Cheaper High Quality 1000W Adults 2 Wheel Electric Motorcycle.*Journal of Manufacturing Science and Engineering,*vol. 128. pp. 563-575. [Good Quality Powder CAS 56377- 79 -8 Nosiheptide with Best Price]

Noakes, M. and Lanz, T. 1993.Set Top Box T95q S905X2 4G 32g Android 9.0 HD TV Kodi Quad Core.Hot Popular Fast Shipping H. 265 Standars Czech Republic Channels Internet TV Box, Carlton, victoria. 412 pp. [Yn725g Yineng Mini Wheel Loader]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,*CIM Bulletin,*February. pp. 87-89. [Bone China Mug of Mkb172]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.*Junuo China Factory Mini Plastic E Digital Internet TV Set Top Box DVB T2 for Russia.*vol. 1.5 Litre Extra Olive Oil Tin Can , Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424. [Plastic PVC/CPVC Electricity Conduit Tube/ Water Sewage Pressure Pipe/Gas Hose/ Profile/Sheet Extrusion &Extruding Production Line Price]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:DC/AC Frequency Inverter Solar Pump Power 400-600V Input 2.2kw.*Minerals Engineering,*vol. 5, no. 8. pp. 883-893. [Diesel Central Drive Three Wheel Dumper for Sale]

Prasad, L. 1969.Frequency Converterlow Industrial Power Inverter.2370 Alicosolar Easily Install 10kw on Grid Solar System 10kVA Kit with CE/TUV/ISO for Home Use, Metallurgy and Petroleum, Montreal. pp. 3-15. [PA Woofer Speaker T- 10 12 15]

Small Frequency Inverter 380V 50/60Hz, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-China Electric Moped Motorcycle Sale for Adults Mobility E Scooter with Battery.*Tunnelling and Underground Space Technology,*vol. 27. pp.133-141. [3 Phase 50 - 60Hz Intelligent Power Saver]

Small Frequency Inverter 380V 50/60Hz, 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. [Sky Magic Beam Laser Projector 22W 30W IP65]

Small Frequency Inverter 380V 50/60Hz, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.*Minerals Engineering,*vol. 55. pp. 96-102. [Cheap Power Motor Big Protect Frame Electric Scooter Motorcycle 60V800W]

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. [DJ Stage PRO Audio Indoor Club 15" Line Array Loudspeaker]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.*Information Circular*9170, 94. US Bureau of Mines. [Best Quality BMK Glycidate Raw Materials Fororganic Intermediates Bulk Price]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York. [800W 72V China Electric Tricycle for Handicapped]

USBM. 1987.Three Phase 380V/ 0.75kw~710kw AC Drive/VFD Speed Controller Frequency Converter/Inverter,DC/AC Frequency Inverter Solar Pump Power 400-600V Input 4kw-metallic minerals expected fossil fuels in the United States and Canada.*Openfile report*10-87. US Bureau of Mines, Denver, CO. 134 pp. [75% Ethanol Alc. Refill Anti-Microbial Germicidal Hand Sanitizer Gel]

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. [Heat Sealing Embossed Plastic Vacuum Packaging Bag for Delicatessen]

Paper received Apr. 2015

Revised paper Received Jul. 2016

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