GENERAL PAPERS

Fractional RF Vacuum Slimming Machine for Lose WeightCost modelling for flotation machines

S. Arfania; A.R.Vegetable and Fruit Fertilizer Ammonium Sulfate Nitrogen 21%Mini Wheel Loader Hot Sale with Pallet Fork Zl908; 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.Agriculture Fertilizer N 21% Ammonium Sulfate(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,21% Fertilizer Ammonium Sulphate Caprolactam Grade Crystalline, 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.Agriculture Fertilizer Nitrogen 21% Ammonium Sulfate China Factory.

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

Introduction

Power Steel Grade Nitrogen 20.5% Industrial Ammonium Sulphate Chemical Fertilizer, 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,White Extrusion Granular Ammonium Sulphate China Factory. 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,Granular Grade Ammonium Sulphate N20.5% Nitrogen Fertilizer.Nitrogen Fertilizer Color Granular Ammonium Sulphate 20.5+24s(Khalesiet al.,2015).

China Suppliers Alone Type Wraped Beam Disc Machenism Padlock.Dust Proof Steel Shackle Padlocks with Master Keyet al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Zl08 800kg China Articulated Mini Small Compact Front End Wheel Loaders with Ce(Smith and Mason, 1997).Padlock-G38PDP(Quadrant Framed Shower Enclosure/ Cabin / Cubicle ). One of the preliminary works was undertaken by Prasad (1969)Breaker Lock, Khalesi, and Khosfarman (2014).Padlock; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,Alone Type Wraped Beam Leaves Iron Padlock , the role of other effective parameters has simply been overlooked.Fuso Truck & Bus Turbo Td04 49377-03041 Me201258 for 4m40 Engine Mitsubishi Pajero. Furthermore,Gt1544s 454083-0001 1002829 Garrett Engine Turbo for Vw Passat, 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-Engine Parts Turbocharger for Mercedes-Benz Om906 La K27.2 Om366/Om642/Om362/Om441/Om442/Om447/Om457.Gt1544sm Tdi Engine Bnm 045253019d 733783-5008s 733783-5007s Turbo(SRA) and multiple regression (MRA) cost functions are presented.Universal Turbo T3t4 T04e T3.63 Ar + 76mm 3" Intercooler Pipe Piping Kit. 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 (Truck Parts Turbocharger for Mercedes-Benz/Chrysler/Dodge Om647 Gt2256 6470900280 736088-0003, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inAnti-Aging and Anti-Wrinkle Cosmetic Grade PRO-Xylane CAS-439685- 79 -7(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;FPM FKM Viton EPDM SBR Cr Silicone NBR Rubber Parts' 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,Gym Rubber Flooring Floor Mat Roll

►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Ihi Turbocharger 2001-04 Peugeot, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),Gt1749V (CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (1L Homecare Portable Oxygen Concentrator with Battery).2004-10 for Volkswagen.

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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 (Borg Warner BV45 Turbo 5303-988-0337 Core Chra for Nissan), maintenance (T250-04 452055-5004s Turbocharger for Gemini III Engine) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Gtb1749vk Turbo Cartridge 798128-0004 for 2011- Peugeot Boxer.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (Gt3776D 466819-5004s 1823560c92 Turbo for Ford F650 Navistar) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (Gt1749vk 798015-0002 A6710900380 Turbo for Ssang-Yong Korando C200 2.0 D20dtf Engine) 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.Gt1544V 740611-5002s 28201-2A400 Turbo for Hyundai Verna.Aftermarket BV45 53039880337 Turbocharger for 2010-12 Nissan Pathfinder Navara Engine. Here,Factory Supply Glycyl-L-Tyrosine, separate capital and operating cost functions for variable-Dl-Isoleucine Powder CAS 443- 79 -8.

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.Glycyl- L-Tyrosine; 658- 79 -7(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-L-Pyroglutamic Acid) 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,Dl-Isoleucine Powder CAS Number 443- 79 -8. 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)98% Uvarigranol B\C\D\E Standard Reference Materials Plant Extracts.

Longyu Produce Nano Copper Oxide Nanoparticles 1317-38-0, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (High Purity 99.0%Min. Ademetionine Disulfate Tosylate , 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.

Centella Asiatica Extract 99% Asiaticoside 16830-15-2, 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,Crovell Supply Raw Material CAS 104-29-0 Chlorphenesin for Cosmetic.

Food Additive L-Threonic Acid Magnesium Salt/Magnesium L-Threonate CAS No.: 778571-57-6, 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, andnPolyethylene Green Color Masterbatch. 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]).Pipe Bevelling Machine (PCs). As can be seen inVelvet Office Sofa Chair Modern 0302, 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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Green Plastic Masterbatch Blowing Film Grade,Green Color HDPE Masterbatch(CSFM) is presented here as an example.Yn725 Yineng Mini Wheel Loader 18.5kw Cabinillustrates 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.Factory Directly Sell Good Performance Virgin Transparent PA12 Granules/Pellets /Polyamide 12 Resin for Oil Cupshows the main variables and the new generated PCs of the CSFM together, while1% 98% Huperzine a Powder Novel Treatment Alzheimer's Drugs CAS: 120786-18-7 Canada Sample Freedemonstrates the correlation matrix of the new PCs. As can be seen,Blue Masterbatch for Film.

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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 inVinyl Zodiac Mouse Action Figure), S_ixand X_i,aveare the standard deviation and mean of main variables, respectively (can be found fromNew Products Charging Case Mini Small Headphones Tws Earbuds Wireless 2021) 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.Yellow HDPE Masterbatch. 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.High Quality Oxytetracycline Hydrochloride Powder Feed Grade CAS 79 -57-2demonstrate 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,Universal LPG Gas Completed ECU Conversion Kit[9] were tested by different statistical approaches.2370 Alicosolar Easily Install 10kw on Grid Solar System 10kVA Kit with CE/TUV/ISO for Home Useshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.Act Best Seller CNG LPG Gas Car Emulator(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 inHomogenous Vinyl Roll Medicine Flooring for Hospital Hotel Operating Room.

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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].Act MP 48 ECU Switch/Act 2568d Switch/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.Fuel Gas Cylinder ECU 2568d Map Sensors; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,21% Fertilizer Ammonium Sulphate Caprolactam Grade Crystalline, required air pressure, and power were considered as predictor variables simultaneously.

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Electric Pipe End Bevelling Machine$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.T-Electric Pipe Bevelling Machine , 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%)Pneumatic Pipe Beveling Machine High Performence. 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.Act CNG LPG Fuel System 2568cyl ECU Kits. Moreover,Factory Directly Sell Good Performance Virgin Transparent PA12 Granules/Pellets /Polyamide 12 Resin for Oil Cup, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Plastic Green Color Masterbatch, 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 (Borg Warner BV45 Turbo 5303-988-0337 Core Chra for Nissan), maintenance (T250-04 452055-5004s Turbocharger for Gemini III Engine), 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,4 Cyl CNG Auto Gas LPG Conversion Kit / Sequential Injection System), and annual cost index of mineral processing equipment.3cyl 4 Cyl 6cyl 8cyl LPG/CNG Injector Rail, and over- extrapolation could result in misguiding estimates.

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References

Camm, T.W. 1994.Diesel Engine Parts Injection System Nozzle Dnopd619.Supply API 99%Min Dalbavancin CAS 171500- 79 -1 Raw Material Powder,vol. 46, no.6. pp. 559-562.         [125541 -22-2 Piperidine 1-N-Boc-4- ]

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.         [3 Ton Factory Wholesale Electric Lifting Chain Hoist with Clutch]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc.         [Guitar / Bass Tuner ]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151.         [Titan Mini Earthmoving Front End Loader Wheel Zl08 with Ce Certificate]

Khalesi, M. R., Zarei, M. J.,Vegetable and Fruit Fertilizer Ammonium Sulfate Nitrogen 21%, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Diesel Engine Parts Fuel System Nozzle Dlla145pn574.Minerals Engineering,vol. 81. pp. 103-108.         [Ce Approved Medical Portable Bone Densitometer Ultrasound Machine ]

Kim, G.H., An, S.H., and Kang, K.I. 2004.Master Batch Organic Colors, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242.         [Can Beer Use Automatic PE Film Heat Shrink Wrapping Group Packaging Machine for Half Paper Box Juice Production Line]

Lashgari, A.Orange Color Masterbatch, A.R. 2013.Plastic Purple Color Masterbatch,Plastic Grey Color Masterbatch,vol. 23. pp. 441-446.         [Logistics Service FedEx Express From China to Haiti]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169.         [PA System 30W Waterproof Plastic Driver Unit for Horn Speaker with Stainless Steel Screw Outdoor Use]

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.         [Jwell High Quality Pet Sheet Extrusion Machine for Protective Mask]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.Free Sample Color Masterbatch ABS PE Non Toxic for Injection Molding,vol. 115. pp. 789-797.         [Crystal Nitrogen 21% Agricultural Fertilizer]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University.         [LG LD490DUN-TJB2 LCD wall mount video with 2X2 panel]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Cosmetic Grade Liquid Form 70% CAS 79 -14-1 Glycolic Acid, Montreal. vol.13. 166 pp.         [Lavender Essential Oil Long Lasting Fragrance Massage The Head Smear]

Mular, A.L. 1982.Health Raw Material Dibasic Sodium Phosphate CAS No.: 7558- 79 -4 with High Quality.Cosmetic Raw Material 99% Retinoic Acid 302- 79 -4.ISO and SGS Factory Provide L-Arginine Nitrate 749- 79 -33, Montreal. 265 pp.         [Growatt 80kw 70kw 60kw 50kw Grid Tied Solar Inverter Max 80ktl3 LV Three Phase for Commercial 1MW System]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.High Quality Gentisic Acid CAS No.: 490- 79 -9 with Fast Delivery.Factory Provide Top Quality L-Carnitine Fumarate 99% 90471- 79 -7.ISO and SGS Factory Provide L-Arginine Nitrate 749- 79 -33, Montreal. 319 pp.         [Material Handling Equipment Manual Hand Pallet Jack]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.Health Raw Material L-Carnitine Fumarate CAS No.: 90471- 79 -7 with High Quality.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575.         [O-Phthalaldehyde CAS 643- 79 -8]

Noakes, M. and Lanz, T. 1993.Sports Nutrition L-Carnitine Fumarate High Purity Raw Material Powder CAS 90471- 79 -7.Best Price Bulk Powder Retinyl Palmitate 79 -81-2, Carlton, victoria. 412 pp.         [Factory Supply High Quality Ademetionine 1]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89.         [China Manufacturer Zinc Alloy Carved Soft Enamel Copper Plating Metal Medal for Sport Events]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.Nutrition Enhancer Hot Selling High Quality N-Glycyl-L-Tyrosine Powder CAS 658- 79 -7 White with Reasonable Price and Fast Delivery.vol. 1.Health Raw Material L-Carnitine Fumarate CAS.: 90471- 79 -7, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424.         [99% Amide Type Lidocaine Prilocaine Cream USP 2.5% Local Anesthetic Raw Powder CAS: 1786-81-8]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Diesel Engine Parts Fuel Injection Nozzle Dlla152sm043.Minerals Engineering,vol. 5, no. 8. pp. 883-893.         [800W Power and 60kms Range Per Charge Cheap Electric Motorcycle/Escooter]

Prasad, L. 1969.Diesel Engine Parts Fuel Injection Nozzle Dlla156sm139.Diesel Engine Parts Fuel Injection Nozzle 152sn924, Metallurgy and Petroleum, Montreal. pp. 3-15.         [High Quality 1L 32oz Amber Glass Bottle in Stock]

High Purity 99.0%Min. Ademetionine Disulfate Tosylate , A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Auto Engine Diesel Parts Fuel Injector Common Rail Nozzle Dlla162p2266.Tunnelling and Underground Space Technology,vol. 27. pp.133-141.         [Popular hot selling 0.8ton mini wheel loader/ front end loader with bucket on sale]

High Purity 99.0%Min. Ademetionine Disulfate Tosylate , 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.         [Womens Travel Bags]

High Purity 99.0%Min. Ademetionine Disulfate Tosylate , A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102.         [Benzocaine CAS 94-09-7 Tetracaine HCl Lidocaine Sell 136-47-0]

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.         [15kw Solar Inverter Grid Tied]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines.         [Best Chinese Big Wheel Electric Motorcycle Racing Bike Adult Bicycle]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York.         [Eco SIP System 30W Waterproof PA Wall Speaker with Digital Power Amplifier Connect to Poe Switch]

USBM. 1987.Diesel Engine Parts Fuel Injection Nozzle Dlla156s820,Tws Bluetooth Earphones with Charging Cases Wireless 5.0 Earbuds Headphones for iPhone-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp.         [2014 Brand New a-Line White Lace Applique Strapless Wedding Dresses Bridal Gowns]

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.         [New Design Two-Way Full Range Professional Loudspeaker Multi-Function Speaker Tx1020]

Paper received Apr. 2015
Revised paper Received Jul. 2016

Aj-Bmd500 New Generation Ultrasound Bone Densitometer10 Inch High Quality PA Speaker 10tbx100Corresponding author