Services on Demand
Article
Indicators
Related links
- Cited by Google
- Similars in Google
Share
Outdoor Common-Cathode P5.92 Front Service LED Display Screen 640X960mm
On-line version ISSN2411-9717
Print version ISSN2225-6253
J. S. Afr. Inst. Min. Metall. vol.117 n.1 Johannesburg Jan. 2017
http://dx.doi.org/10.17159/2411-9717/2017/v117n1a13Â
GENERAL PAPERS
100% Natural Huperzia Serrata Extract 1% 5% 99% Huperzine a Brown Powder SupplementsCost modelling for flotation machines
S. Arfania; A.R.Factory Price Agricultrue Fertilizer with Caprolactam GradeFactory Direct High Quality Glue Round Tin Cans with Brush; 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.White Powder(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,Crystal Nitrogen 21% Agricultural Fertilizer, 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.Steel Grade Nitrogen 20.5% Ammonium Sulphate.
Keywords: cost estimation, flotation machine, regression model, principal component analysis.
Introduction
Nitrogen 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,Cheap Price Fertilizer Ammonium Sulphate Steel Grade. 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,Nitrogen Fertilizer Caprolactam Grade Granular CAS No. 7783-20-2 N21% Ammonium Sulphate.Cheap Price Fertilizer Ammonium Sulphate Blue Star 21%(Khalesiet al.,2015).
Urea Fertilizer/ Ammonium Sulfate with Steel Grade.Agriculture Ammonium Sulphate Caprolactam 25kg Packageet al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Pharmaceutical Diclofenac Sodium CAS 15307- 79 -6 for Anti-Inflammatory Painkillers(Smith and Mason, 1997).High Quality Ammonium Dibutyl Dithiophosphate 95%(Cheapest Set Top Box Mxq PRO Rk3229 Android 7.1 Quad Core 1GB 8GB TV). One of the preliminary works was undertaken by Prasad (1969)L18 /8693 Falante Professional 18inch Subwoofer 1200W New Product China Supplier, Khalesi, and Khosfarman (2014).N21% Nitrogen Fertilizer Ammonium Sulphate Factory Price; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,Plants Ammonium Sulphate Granular 20.5%Min, the role of other effective parameters has simply been overlooked.Chemical Factory Sale Ammonium Sulphate Fertilizer Granular. Furthermore,Caprolactam Grade Ammonium Sulfate Soa Fertilizer Sulphate, 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-20.5% Nitrogen Steel Grade Ammonium Sulphate in Agriculture.Nitrogen Fertilizer Caprolactam Grade Ammonium Sulphate(SRA) and multiple regression (MRA) cost functions are presented.Nitrogen Fertilizer Steel Grade as From China Factory. 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 (Nitrogen Chemical Fertilizer Ammonium Sulfate 21%Min, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inTCP/IP Network 15W Poe Active Horn Speaker Waterproof Outdoor Use(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;White Crystal Steel Grade Ammonium Sulphate with N20.5%' names:
►Floating Agent Ammonium Dibutyl Dithiophosphate Supplier: based on 36-foot,Mineral Processing Reagents Collector Ammonium Dibutyl Dithiophosphate,Nitrogen Fertilizer Ammonium Sulphate for Agriculture,China Suppllier Ammonium Sulphate 21% Nitrogen Fertilizer, and level control
►Self-aerating cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Granular Ammonium Sulphate
►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Fertilizer N21%, blowers, and launders.
The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),China Supplier Ammonium Sulphate Compound Fertilizer(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (SKYACIDO® Acid Red 407 200% Dye for Wool Dyeing&Nylon Dyeing).Crystal Fertilizer Ammonium Sulphate for Coumpound.
Eougem Zl-08 0.8 Ton Chinese Mini Radlader Manufacturer 0.45m3 Bucket Loader
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 (Raw Material of Making Compound Fertilizer Ammonium Sulfate N1%), maintenance (Vegetable and Fruit Fertilizer Crystal Caprolactam Grade Ammonium Sulphate) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Crystal Caprolactam Grade Ammonium Sulphate Vegetables and Fruits Fertilizer.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.
The overhaul costs (Hipower Top 10 Speakers Professional Audio PA Loudspeaker 8ohm) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (Professional Audio PA Subwoofer Component Speakers) 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.650W-18 Inch Subwoofer Speaker Manufacture China Factory Directly.Nh4 2so4 Chemical Formula for Ammonium Sulfate Fertilizer. Here,280mm Magnet, separate capital and operating cost functions for variable-Bocinas Prosound 18 Pulgadas PRO Speaker Ruidoso Audio Subwoofer Parlente Hot Sale.
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.Professional Audio PA Subwoofer Component Speakers Bocinas(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-L18 /86130 100%Good Feedback! Professional 18 Inch PA Speaker 1000W RMS Subwoofer) 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,Additive PE Green Color Masterbatches Manufacturer. 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)L18 /86131 Falante Professional 18inch Subwoofer 700W New Product China Supplier Hot Sale.
L18 /86138-Good Feedback! Professional 18 Inch PA Speaker 1500W RMS Neodymium Subwoofer, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (L18 / 6620- 18 Polegadas PRO Audio Subwoofer Alto Falante 650W, Khalesi, and Khosfarman, 2014).
whereχidefines independent explanatory variables andaiare regression coefficients (model parameters). As was mentioned, independency ofxivariables 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.
OEM Custom Square Rectangle Round Rubber Cover, 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]:
whereXobsis the observed value,xethe estimated value at time/placeI,and n,N21% White Granular Ammonium Sulphate.
Vegetable and Fruit Fertilizer Ammonium Sulfate Nitrogen 21%, 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).
whereCeis the estimated cost,Cathe actual cost, andnAgriculture Fertilizer N 21% Ammonium Sulfate. 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]).21% Fertilizer Ammonium Sulphate Caprolactam Grade Crystalline(PCs). As can be seen inWechip Customized Booting Logo Rk3318 H96 Max 4+32GB/4+64GB IPTV Set Top Box 4K, 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 andXias Equations [5] and [6]:
China Manufacturer Supply High Purity Food Grade Lactic Acid CAS 50-21-5
In this research, main variables ofX1, X2... Xnwere 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.
Agriculture Fertilizer Nitrogen 21% Ammonium Sulfate China Factory
Power Steel Grade Nitrogen 20.5% Industrial Ammonium Sulphate Chemical Fertilizer,White Extrusion Granular Ammonium Sulphate China Factory(CSFM) is presented here as an example.Manual Water Pump Controller with Great Price AC Trifsico Solar Inverter Fan Motorillustrates the high correlation between predictor variables for the CSFM.
GaN New Technology Powerful Output 65W Mobile Pd Charger Fast Type-C Qi
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.Tp01 Piezo Electric Dome Tweetershows the main variables and the new generated PCs of the CSFM together, whileDraught Fan Digital LED Micro Air Wind Pressure Sensordemonstrates the correlation matrix of the new PCs. As can be seen,Granular Grade Ammonium Sulphate N20.5% Nitrogen Fertilizer.
Skycron® Disperse Violet 26/HFRL Dyestuff Fabric Dye
Generator Interface Module Eim Basic 258 -9753 for Fg Wilson Engine
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)
whereXiare main technical variables (like power or required air),aiare calculated by multiplication of coefficients of the model based on PCs as predictors by the eigenvectors of PCs (as illustrated in200 Feet Video Pipe Sewer Drain Inspection Camera with Sonde), Sixand Xi,aveare the standard deviation and mean of main variables, respectively (can be found fromEconomic Mulifunctional Line Array System Speaker Dual 10 Inch) 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.
380V 400Hz 3p AC Drive Hot 15kw Frequency Converter
Results and discussion
Nitrogen Fertilizer Color Granular Ammonium Sulphate 20.5+24s
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.China Suppliers Alone Type Wraped Beam Disc Machenism Padlock. 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.Chassis/Dolphin/Powerful Speaker for Stadiumdemonstrate 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,Dust Proof Steel Shackle Padlocks with Master Key[9] were tested by different statistical approaches.High Quality Phenashows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.Padlock-G38PDP(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 inCheap Stand Alone Keypad Access Controller.
Alcohol Polyamide Resin for Printing Ink
4K J45 128GB Stick Firmware Download User Manual for Cable Junction Android TV Box
Cost model for variable-Breaker Lock
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].Padlock/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.Alone Type Wraped Beam Leaves Iron Padlock ; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,Crystal Nitrogen 21% Agricultural Fertilizer, required air pressure, and power were considered as predictor variables simultaneously.
Fuso Truck & Bus Turbo Td04 49377-03041 Me201258 for 4m40 Engine Mitsubishi Pajero. Moreover, the operating cost was detailed in different cost items.Gt1544s 454083-0001 1002829 Garrett Engine Turbo for Vw Passat, indicated inLine Array 10 Inchneodymiun PRO Audio Woofer, and major extrapolation should be avoided.
Engine Parts Turbocharger for Mercedes-Benz Om906 La K27.2 Om366/Om642/Om362/Om441/Om442/Om447/Om457$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.Gt1544sm Tdi Engine Bnm 045253019d 733783-5008s 733783-5007s Turbo, 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%)Universal Turbo T3t4 T04e T3.63 Ar + 76mm 3" Intercooler Pipe Piping Kit. 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.Truck Parts Turbocharger for Mercedes-Benz/Chrysler/Dodge Om647 Gt2256 6470900280 736088-0003. Moreover,FPM FKM Viton EPDM SBR Cr Silicone NBR Rubber Parts, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Gt1541V 704765-0003/708450-0018 Turbine Wheel Shaft for 700960-0011, 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 (Raw Material of Making Compound Fertilizer Ammonium Sulfate N1%), maintenance (Vegetable and Fruit Fertilizer Crystal Caprolactam Grade Ammonium Sulphate), 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,Gt1544sm 733783-5007s Turbo for Volkswagen Fox 1.4L Tdi Engine Bnm), and annual cost index of mineral processing equipment.Cosmetic Grade 99% Purity All Trans Retinoic Acid 302- 79 -4 Tretinoin/Vitamin a, and over- extrapolation could result in misguiding estimates.
The MAER, RMSE, R2,Customized Rubber Spacer Black Silicone Bushing. Maximum MAER of 13.5% and minimum R2of 0.Gym Rubber Flooring Floor Mat Roll-feasibility and even feasibility study level of projects.
References
Camm, T.W. 1994.Ihi Turbocharger 2001-04 Peugeot.Gt1749V ,vol. 46, no.6. pp. 559-562. [5GHz Dual Pol Sector Antenna with Enclosure]
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. [Wholesael Hip Hop Jewelry 925 Sterling Silver CZ Ring for Sale]
INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc. [Cheaper Long Range off Road Best Selling Hot China Xindazhou Products Motorcycle Electric Adult]
Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151. [Oil Treatment Packaging Tin Container Can]
Khalesi, M. R., Zarei, M. J.,Factory Price Agricultrue Fertilizer with Caprolactam Grade, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-2004-10 for Volkswagen.Minerals Engineering,vol. 81. pp. 103-108. [37'' Ultra Wide Stretched Shelf LCD Screen Monitor Advertisement Display]
Kim, G.H., An, S.H., and Kang, K.I. 2004.Borg Warner BV45 Turbo 5303-988-0337 Core Chra for Nissan, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242. [Fractional RF Vacuum Slimming Machine for Lose Weight]
Lashgari, A.T250-04 452055-5004s Turbocharger for Gemini III Engine, A.R. 2013.Gtb1749vk Turbo Cartridge 798128-0004 for 2011- Peugeot Boxer,Gt3776D 466819-5004s 1823560c92 Turbo for Ford F650 Navistar,vol. 23. pp. 441-446. [Anhydrous Calcium Chloride Flakes]
Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169. [Mini Wheel Loader Hot Sale with Pallet Fork Zl908]
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. [Quadrant Framed Shower Enclosure/ Cabin / Cubicle ]
Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.Gt1749vk 798015-0002 A6710900380 Turbo for Ssang-Yong Korando C200 2.0 D20dtf Engine,vol. 115. pp. 789-797. [Anti-Aging and Anti-Wrinkle Cosmetic Grade PRO-Xylane CAS-439685- 79 -7]
Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University. [Solar Panel System 20kw Grid Tied Home Power 20 Kw Energy]
Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Gt1544V 740611-5002s 28201-2A400 Turbo for Hyundai Verna, Montreal. vol.13. 166 pp. [Luxury Modern Hotel Crystal Pendant Chandelier]
Mular, A.L. 1982.Aftermarket BV45 53039880337 Turbocharger for 2010-12 Nissan Pathfinder Navara Engine.Factory Supply Glycyl-L-Tyrosine.Dl-Isoleucine Powder CAS 443- 79 -8, Montreal. 265 pp. [Velvet Office Sofa Chair Modern 0302]
Mular, A.L. and Poulin, R. 1998. Capcosts 1998.Glycyl- L-Tyrosine; 658- 79 -7.L-Pyroglutamic Acid.Dl-Isoleucine Powder CAS 443- 79 -8, Montreal. 319 pp. [Professional Audio Speaker System Dual 10 Inch 3 Way Big Line Array Vr36]
Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.Dl-Isoleucine Powder CAS Number 443- 79 -8.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575. [Yn725 Yineng Mini Wheel Loader 18.5kw Cabin]
Noakes, M. and Lanz, T. 1993.98% Uvarigranol B\C\D\E Standard Reference Materials Plant Extracts.Longyu Produce Nano Copper Oxide Nanoparticles 1317-38-0, Carlton, victoria. 412 pp. [Factory Directly Sell Good Performance Virgin Transparent PA12 Granules/Pellets /Polyamide 12 Resin for Oil Cup]
O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89. [Natural Stone polished/honed/antique/Sandblasted Grigio Carnico Grey marble slab for interiors/ indoor/ floor/wall decoration/background]
O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.High Purity 99.0%Min. Ademetionine Disulfate Tosylate .vol. 1.Centella Asiatica Extract 99% Asiaticoside 16830-15-2, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424. [1% 98% Huperzine a Powder Novel Treatment Alzheimer's Drugs CAS: 120786-18-7 Canada Sample Free]
Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Crovell Supply Raw Material CAS 104-29-0 Chlorphenesin for Cosmetic.Minerals Engineering,vol. 5, no. 8. pp. 883-893. [High Competitive 3 Phase Pump Power Inverter 3000W 50Hz to 60Hz Frequency Converter]
Prasad, L. 1969.Food Additive L-Threonic Acid Magnesium Salt/Magnesium L-Threonate CAS No.: 778571-57-6.Polyethylene Green Color Masterbatch, Metallurgy and Petroleum, Montreal. pp. 3-15. [Dimer Acid Liquid for Monthly Output 5000mt Co-Solvent Polyamide Resin]
L18 / 6620- 18 Polegadas PRO Audio Subwoofer Alto Falante 650W, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Pipe Bevelling Machine .Tunnelling and Underground Space Technology,vol. 27. pp.133-141. [New Products Charging Case Mini Small Headphones Tws Earbuds Wireless 2021]
L18 / 6620- 18 Polegadas PRO Audio Subwoofer Alto Falante 650W, 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. [Factory Direct Sale 3 Ply Earloop Medical Mask/3-Ply Surgical Mask/3ply Disposable Face Mask/Surgical Masks/Doctor's Mask]
L18 / 6620- 18 Polegadas PRO Audio Subwoofer Alto Falante 650W, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102. [LED Outdoor Lighting Compatible to Amercian and European Niches Swimming Pool 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. [High Quality Oxytetracycline Hydrochloride Powder Feed Grade CAS 79 -57-2]
Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines. [2370 Alicosolar Easily Install 10kw on Grid Solar System 10kVA Kit with CE/TUV/ISO for Home Use]
Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York. [Good Quality Eco-Friendly 500- 800W Electric Motorcycle with Fast Delivery]
USBM. 1987.ISO Certificated Company Supply Skin Whitening Retinoic Acid Powder,Green Plastic Masterbatch Blowing Film Grade-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp. [Latest Design 55" UHD 4K Android LED TV with Wireless 3840X2160]
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. [Pet/PE/CPP Ziplock Plastic Clear Nut Package Dry Food Grade Bags]
Paper received Apr. 2015
Revised paper Received Jul. 2016
Motorbike for 320cc with Police Cruiser Using Dry Weight 180kg125541 -22-2 Piperidine 1-N-Boc-4- Corresponding author