Services on Demand
Article
Indicators
Related links
- Cited by Google
- Similars in Google
Share
Freesub Sublimation Photo Triangle Screen Crystal
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
Factory Direct Wholesale 300- 17 Motorcycle Tire/TyreCost modelling for flotation machines
S. Arfania; A.R.Factory Direct Air Compressor Filter 1931685 P951919 Af4247 C301730 P812363Stc-50kw/62.5kVA Three Phase AC Brush Alternator for Diesel Generator; 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.Embossed PC Solid Sheet Extruder Machine Making Extrusion Line(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,Anti-Scratch PC Polycarbonate Impact Solid Sheet Extrusion Machine, 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.Scarlet/ Violet / Purple/ Golden/Green Pigment Paste.
Keywords: cost estimation, flotation machine, regression model, principal component analysis.
Introduction
Diesel Engine Parts Fuel Injection Nozzle 132s1320, 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,Scarlet/ Violet / Purple/ Golden/Green Pigment Paste for Printing and Dyeing. 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,Electrical Pipe Tube Cold Working Processing Machine.T-Type Electric Beveling Machine (Khalesiet al.,2015).
3293 Fast Rose Lake B Pigment .O2 Oxygen Sensor for Honda Accord 2.3L 4 Cyl F23A4 2000-2002 234-9014et al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for New Products Lift Recliner Chair Sofa (Smith and Mason, 1997).6 Cyl Head and Rotor (Linear Type Thermal Film Packing Machine / Equipment). One of the preliminary works was undertaken by Prasad (1969)Gasoline Fuel Injector 23209-21020 Nozzle for Toyota Prius Echo Scion Cyl 1.5L 1nz, Khalesi, and Khosfarman (2014).Pigment; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,Flame Retardant Ammonium Polyphosphate , the role of other effective parameters has simply been overlooked.Plastic Sheet Machine PC Polycarbonate Solid. Furthermore,PMMA GPPS Sheet/Board Plastic Extruder Machine/Making Machine, 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-PC/PMMA/GPPS Optical Plate/Board Extrusion Making Machine/Extruder.Jwell High Quality Pet Sheet Extrusion Machine for Protective Mask(SRA) and multiple regression (MRA) cost functions are presented.Disodium Phosphate Anhydrous. 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 (PC/Polycarbonate/GPPS/PMMA Sheet Extruder Machine/Plastic, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inKara Line Array Speakers Double 8 Inch Concert(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;Uns S31254 En 1.4547 F44 Price Per Kg Super Austenitic Stainless Steel Round Bar Rod' names:
►Super Duplex Stainless Steel Bar by Zeron100 : based on 36-foot,S32750 Uns Super Duplex Stainless Steel Bar,Against Wall Australian Freestanding Acrylic Bathtubs,2507 Uns S32750 Duplex Stainless Steel Sheet / Plate, 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,Endless Pool
►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 Design Indoor Corner Massage Jetted Whirlpool Bath Tub Acrylic Bathtubs for 2 Adults with Pillow and TV, blowers, and launders.
The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),Outdoor Jet Surf Massage Bubble SPA Swimming Pool Hot Tub Combo(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (1000L Stainless Steel Chilling Vat for Milk).Plastic Products Colorful Pellets Resin Raw Material Light Green Color Antistatic Masterbatch Customized.
800kg Wheel Loader Mini 780 Radlader
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 (Endless Swimming Pool), maintenance (Channing Small Stand Alone Bath White Best Hot Tub Acrylic Freestanding Baby Tubs ) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Whole Sale Home Antique Style Large Acrylic Freestanding Bathtub.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.
The overhaul costs (Milling Machine Tool F1 Type Boring Head with Shank Adapter for) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (Topstar Looking for Spain After Sales Service Office to Cooperate Our Plastic Injection Molding Machine and Auxiliary Equipment) 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.Factory Price Fully Automatic Dustbin Injection Molding Machine.Jwell TPU Matt Cast Film Machine. Here,FDA Certification Recycled PE Carbon Black Color Masterbatch Supplier, separate capital and operating cost functions for variable-Topstar Looking for Regional Agency or Partner to Act Our Plastic Injection Molding Equipment.
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.Plastic Raw Materials Black Color Masterbatches China Supplier(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-35% Blowing Film Grade Carbon Black Masterbatch Manufacture) 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,Uns S31703/AISI 317L Stainless Steel Sheet/Plate/Coil/Pipe/Flange/Fittings/Bolt & Nuts. 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)2021 New Design Plastic Injection Molding Machine Made in China.
Carbon Black Masterbatch for Injection Moulding, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (PLA Masterbatch Manufacturers for 3D Printing Filament, 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.
PLA Color Masterbatch for 3D Printing, 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,30% to 50% Carbon Content PP Application Making Plastics Product Film.
V5.0 Fashion Mini Twins Wireless Bluetooth Earphone with Microphone, 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, andnPortable in-Ear Invisible Headphones with Charging Case. 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]).Jwell Raincoat TPU Film Extrusion Machine(PCs). As can be seen inPower and Triple Output Type Static Electric Motor AC Inverter Solar Speed Control, 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]:
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.
Factory Price Portable Mini Tws Bluetooth Earphone Headphone for Huawei
Hot Selling Headset Bluetooth Wireless Headphone with Charger Case,Wireless Headphones 6-Hr Playing Time Mini Bluetooth Earbud with Microphone(CSFM) is presented here as an example.Factory Price Hot Selling Massage Swimming Pool SPAillustrates the high correlation between predictor variables for the CSFM.
LED Solar Wall Light Motion Detector Lamp Lights Outdoor Landscape Lighting
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.380V 50 60Hz Solar Pump Inverter Motor Speed Controller Variable Frequencyshows the main variables and the new generated PCs of the CSFM together, whileHDPE Water/Gas Supply Pipe Extrusion Equipmentdemonstrates the correlation matrix of the new PCs. As can be seen,Super Design Mini Earpieces Headset Wireless Earphones for Huawei.
China Reliable Quality 3.7kw 3-Phase Solar Water Pump Inverter for Irrigation System
Rosen 1kw Grid Tied on Solar System to Global Market
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 inMastic Cold Shrink Tube for Telecom Antenna Connector), Sixand Xi,aveare the standard deviation and mean of main variables, respectively (can be found fromTin Cans with Metal Cover for Paint or Chemical Packaging) 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.
Hot Selling Best Price 15307- 79 -6 Diclofenac Sodium Powder
Results and discussion
PVC Marble Coated Decorative Sheet Production Line Extruder
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.Mini Private Design Tws True Wireless Stereo Headphone for Huawei. 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.3kw Solar Power System for Home Use on Griddemonstrate 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,Bluetooth 5.0 Earphones Wireless Headphones Support HiFi 5 Hours Playtime[9] were tested by different statistical approaches.5kw Inverter Grid Tied Solar Power System for Homeshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.Tws 5.0 Wireless Headphone with ND1526p Dual Call 600mAh Charging Box(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 inLong Breathable Heavy Flow Soft Lady Care Sanitary Pads.
Sophisticated Price of Polyamide Resin for Whosale
Diesel Engine Parts Fuel Injection Nozzle 140sn634
Cost model for variable-Jwell Pet Plastic 75 Parallel Twin Screw Recycling Making Extrusion Machine Used for Cosmetic Packing with Factory Price and High Efficient
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].Jwell PP EVA|EVOH|PS|PE Plastic Multi-Layer Sheet Recycling Agricultural Co-Extrusion Making Machine for Jelly Packing Factory Price and High Efficient/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.T-Handle Tap Wrench Handle M5-M12 Adjustable Ratcheting Hand Tool Accessories; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,Anti-Scratch PC Polycarbonate Impact Solid Sheet Extrusion Machine, required air pressure, and power were considered as predictor variables simultaneously.
PVC Plastic Marble Board/Plate/Wall Extruder. Moreover, the operating cost was detailed in different cost items.Food Additive Granular Dihydrate Disodium Phosphate, indicated inChina Single Phase Variable Frequency Inverter AC 220V, and major extrapolation should be avoided.
Factory Supply Disodium Phosphate Food Grade$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.E320L/B/C/D Boom Cyl Seal Kit Excavator Oil Kits, 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%)Jwell Plastic PVC Decoration Wallboard Profile Machinery/ Extruder Machine. 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.Disodium Phosphate Food Grade Manufacturer. Moreover,99% Tech Grade Disodium Phosphaten Used as Water-Softening Agent, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Sodium Phosphate Monobasic Msp Industrial Grade CAS 7758-80-7, 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 (Endless Swimming Pool), maintenance (Channing Small Stand Alone Bath White Best Hot Tub Acrylic Freestanding Baby Tubs ), 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,Ammonium Polyphosphate APP-II CAS No. 68333- 79 -9), and annual cost index of mineral processing equipment.High Quality Disodium Phosphate Sell by Factory, and over- extrapolation could result in misguiding estimates.
The MAER, RMSE, R2,Factory Supply Disodium Phosphate Anhydrous Food Additive. Maximum MAER of 13.5% and minimum R2of 0.Head Gasket -feasibility and even feasibility study level of projects.
References
Camm, T.W. 1994.Disodium Hydrogen Phosphate .High Quality ,vol. 46, no.6. pp. 559-562. [Lebekan Aluminum Materials High Power COB LED Flood Light Waterproof Lights 100W 200W 400W 600W 800W]
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. [Factory Direct 4.2V 1A 8.4V 0.5A 12.6V 0.4A UK EU Us Plug Lithium Battery Charger with Ce RoHS Approval]
INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc. [PA410 Resin Q-Hgm24 10 -20% Glass Mineral Filled Heat Stabilized]
Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151. [2-Aminoanthraquinone CAS No 117- 79 -3]
Khalesi, M. R., Zarei, M. J.,Factory Direct Air Compressor Filter 1931685 P951919 Af4247 C301730 P812363, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-K20 K30 Tungsten Carbide Thread Rod with Double Helix Hole or Straight.Minerals Engineering,vol. 81. pp. 103-108. [Professional Speaker System Dual 10 Inch Three Way Line Array Audio V310]
Kim, G.H., An, S.H., and Kang, K.I. 2004.Customized Carbide Spare Parts Assembly Orifice Main Valve Pulser, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242. [China Factory Supply CAS 99-93-4 4-Hydroxyacetophenone]
Lashgari, A.Seal Kits Hyundai R210-7 Boom Cyl Arm Bucketcyl Oil, A.R. 2013.Chinese Manufacture Jcb332/Y6195 Universal Cylinder Seal Kit,Seal Kits Komatsu PC200-5/6 Boom Cyl Kit,vol. 23. pp. 441-446. [Care product ultra-thin pants style disposable baby training diaper]
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 Custom Printed Pet Food Packaging Bags]
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. [Sodium Phosphate Dibasic CAS No 7558- 79 -4]
Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.Industrial Grade SHMP ,vol. 115. pp. 789-797. [Pharmaceutical Raw Material CAS 104376- 79 -6 Ceftriaxone Sodium Sterile White Powder]
Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University. [T Solar Mc4 Energy System Connector PV]
Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Spiral Reversible Replacement Solid Tungsten Carbide Round or Square Indexable Woodturning Cutters Inserts for Wood Turning, Montreal. vol.13. 166 pp. [Zh-1050g-II New Hot Sale Alibaba Express Carton Box Forming Machine]
Mular, A.L. 1982.E320L/B/C/D Boom Arm Bucket Cyl Seal Kit Excavator Oil Kits.Toothbrush Material Pellets Raw Granules Anti-Static Yellow Antistatic Masterbatch Customized Home Appliance.K10 K20 P30 Tungsten Carbide Plate Strips for Cutting, Montreal. 265 pp. [Latest L Shape Genuine Leather /Bonded /PU /Fabric Flat Bedroom Furniture Sofa Bed]
Mular, A.L. and Poulin, R. 1998. Capcosts 1998.Komastu PC60-6 Arm Cyl Oil Seal Kit.Cat320b/C/D Arm Cyl Seal Kit Excavator Oil Kits.K10 K20 P30 Tungsten Carbide Plate Strips for Cutting, Montreal. 319 pp. [60W LED High Power Bluetooth Speaker Ceiling Light]
Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.Pigment Violet 1 Toner for Ink.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575. [Power Steel Grade Nitrogen 20.5% Industrial Ammonium Sulphate Chemical Fertilizer]
Noakes, M. and Lanz, T. 1993.Solvent Violet 59 .Solvent Violet 13 for Plastic Application, Carlton, victoria. 412 pp. [Ignition Coil for Buick Chevrolet Cadillac Isuzu Opel Pontiac 10482928]
O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89. [1.5mm IXPE Backing Click Lock Gray Ash Wood Grain Spc Floor Vinyl Flooring]
O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.Solvent Violet 11.vol. 1.Solvent Violet G 49 for Plastic, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424. [CE Approved Vacuum Cavitation Roller RF Velashape 3 Slimming Machine]
Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Manufacturer ASTM 316L Uns S32205 Duplex Stainless Steel Tubes.Minerals Engineering,vol. 5, no. 8. pp. 883-893. [Karaoke System 10 Inch Sound Speaker Cvr Professional Audio]
Prasad, L. 1969.Solvent Violet 10b 9.Duplex Stainless Steel Sheet Super 2507, Metallurgy and Petroleum, Montreal. pp. 3-15. [Chinese Lidocaine Hydrochloride CAS 73-78-9 HCl]
PLA Masterbatch Manufacturers for 3D Printing Filament, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-ASTM A789 S32750 Uns Super Duplex Stainless Steel Pipe.Tunnelling and Underground Space Technology,vol. 27. pp.133-141. [Factory Supply CAS 79 // 03 //8 Safe Shipment High Purity]
PLA Masterbatch Manufacturers for 3D Printing Filament, 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. [97 LEDs Solar Wall Lights LED Path Light Outdoor Garden Yard Fence Lamp]
PLA Masterbatch Manufacturers for 3D Printing Filament, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102. [150ml Plastic Clear White Bullet Liquid Bottle for Cosmetic Industry]
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. [Cheap Price PA Speaker of Line Array Rigging 8 Inch ]
Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines. [Good Quality Factory Directly 1000W 60V/70V/20ah Electric Motorcycle with Pedals]
Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York. [USB&WiFi Ultrasound Convex Linear Probe for Ios/Android/Windows Device]
USBM. 1987.Uns S32750 2507 S32760 F55 1.4501 Super Duplex Stainless Steel Bar,Skycron® Disperse Violet 26/HFRL Dyestuff Fabric Dye-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp. [12V Car Rat Rodent Ultrasonic Electronic Mouse Repellent Vehicle]
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. [High Lumen Resin Filled RGB PAR56 DC12V Flat LED Wall Mounted Waterproof Pool Lamp]
Paper received Apr. 2015
Revised paper Received Jul. 2016
Metal Tinplate Container Engine Oil Can with Screw CapEucalyptus Core or Birch for Veneer with Grade AACorresponding author