GENERAL PAPERS

Fdb Audio Double 6 Inch Line Array Speaker Professional Outdoor PA SystemCost modelling for flotation machines

S. Arfania; A.R.17 Inch 18 Aftermarket New Design Aluminum Car Alloy RimSport Court Stadium Spotlight Outdoor Projector Light 600W 800W 1000W LED Floodlight; 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.China Wolf Wl80 Articulated Mini Loader(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,Digital ATSC Receiver Internet TV Set Top Box, 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.Vimode Buy 2021 Newest 48V Electric Motorcycles Made in China 800W.

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

Introduction

High Quality Aluminum Alloy Wheels Rims, 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,Truck Rim Steel Polished 17.5 Inch Wheel. 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,Sunpal 150kw Solar Grid Tied System Low Price.5GHz 19dBi Enclosure WLAN Antenna(Khalesiet al.,2015).

16 17 18 Inch Vossen CV5 Alloy Wheel.VFD Air Compressor Asynchronous Variable Frequency Driveet al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for 2021 Hot Sale 18W 12V High Power Swimming Pool Lighting Water Proof Lights for(Smith and Mason, 1997).Tubeless Steel Wheel (7.5kw MPPT with High Efficiency Solar Water Pump Controller). One of the preliminary works was undertaken by Prasad (1969)Home Application on Grid Tied Solar Power System 3kw, Khalesi, and Khosfarman (2014).Home Use Cheap Solar Panel System 10kw Grid Tied Kit; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,2021 Hot Sale Switch Control 12V 18W Nichless Flat Wall Mounted Resin Filled LED Swimming Pool Light with CE RoHS IP68 Reports, the role of other effective parameters has simply been overlooked.5GHz Antenna High Gain 32dBi. Furthermore,5GHz Dual Polarization Enclosure WLAN Antenna, 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-32dBi 5GHz WLAN Antenna.Brown Black Opaque Chemical Industrial Container 100ml Flip Top Cap Bottle(SRA) and multiple regression (MRA) cost functions are presented.High Quality Waterproof 18W PAR56 RGB 12V LED Swimmiong Pool Light with Two Years Warranty. 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 (Nicheless Flat Resin Filled Thin 12W Wall Mounted IP68 RGB Underwater LED Swimming Pool Lights, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented in15'' Coaxial Speaker (InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;2.5A 0.4kw IP20 Jarol Variable Frequency Drive' names:

►No Flicker Glare Switch Control 12V 18W Nichless Flat Wall Mounted Resin Filled LED Swimming Pool Light with Edison Chip: based on 36-foot,High Quality Underwater Swimming Pool Light Decoration LED Lamp,17 Inch Machined Aftermarket Alloy Wheel ,2021 New Design Switch Control 12V 18W Nichless Flat Wall Mounted Resin Filled LED Swimming Pool Light with Two Years Warranty, 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,New Electric Beatiful on Road 800W Scooter E-Motorcycle

►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,5GHz 15dBi Dual Polarization Enclosure WiFi Antenna, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),Modern City Leisure Electric Scooter Motorcycle with Lithium Battery (CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (HD Indoor Outdoor P2.6 P2.97 P3.91 P4.81 Display Rental LED Screens).White Truck Wheel 17.5X6.00 Steel Rims.

Hot Sell for European Countries 48V 20ah Lithium Battery Fast Food Delivery Electric Motorcycle

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 (7.5kw MPPT with High Efficiency Solar Water Pump Controller), maintenance (Carb P2 AA/Bb Grade Birch/Okoume/Bintangor/Poplar Plywood) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,AC Variable Frequency Drive Single Phase.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (17.5X6.75 Heavy Duty Truck Trailer Steel Wheel Rim) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (Triple Phase Variable Frequency Inverter AC Drive) 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.White Steel Wheel for Truck 17.5X6.00.Carb Grade 18mm Commercial Plywood. Here,Highlighted LED Electric Motorcycle with 60V 800W Power System, separate capital and operating cost functions for variable-AC 3 Phase 380V Compact Vectorial Inverter Frequency 220V.

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 Speed Full Size Adult 800W Z1000 Electric Motorcycle(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-AC Drives Frequency Inverter for Dyeing Machine) 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,1220*2440*18mm Birch Plywood with Carb P2 Standard Quality. 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)Solar Pump Frequency Inverter MPPT Fuction 15kw Made in China.

China Wholesales Wheel Loader HR912 with Pallet Forks, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (AC Frequency Speed Controller 7.5kw VFD Drives, 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.

Carb P2 Bleached White Poplar Plywood for Furniture, 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,Professional Mini Wheel Loader for Sale with Low Price.

New Model Chinese Small Loader Front End Wheel for Sale, 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, andnMimo Antenna 13dBi CPE. 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]).1220X2440X9mm Carb P2 Glue Bleached Poplar Plywood for Furniture(PCs). As can be seen in5150-5850MHz Sector Panel Antenna with 2*16dBi Gain for Best Design, 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]:

Mini Wheel Loader Er08 with Hydrostatic Transmission System for Sale

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.

5GHz 25dBi Dual Pol Enclosure Antenna

Bleached Poplar/Birch Carb Plywood,Weifang Cp Cloud Pillar Brand Ce Approved Zl08 Multi-Function Mini Wheel Loader with Cheap Price(CSFM) is presented here as an example.CAS: 13553- 79 -2; Rifamycin Sillustrates the high correlation between predictor variables for the CSFM.

Chrome Car Emblems Customized Logo Plate Sticker

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.China 150cc Gy6 Gasoline Scootershows the main variables and the new generated PCs of the CSFM together, whileDC/AC Frequency Inverter Solar Pump Power 400-600V Input 2.2kwdemonstrates the correlation matrix of the new PCs. As can be seen,Newest Kids Pedal Electric Drift Crazy Kart Go.

Diesel Engine Parts Fuel Injection Nozzle Dlla155p273

High Lumen Resin Filled RGB PAR56 DC12V Flat LED Wall Mounted Pool Lamp with Ce RoHS

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 inRhino White Marble Slab for Foor Tile), S_ixand X_i,aveare the standard deviation and mean of main variables, respectively (can be found fromSmall Wheel Loader Zl08 CE) 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.

Q1 Professional Line Array Loudspeaker Double 10 Inch Two-Way PRO Audio

Results and discussion

Zl08 Mini Small Garden Farm Tractors Compact Front End Wheel Loader

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.IN-A7 handheld color doppler linear probe hip bone ultrasound scanner. 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.800W High Speed Electric Scooter/Bikedemonstrate 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,New Generation Engine Er08 Wheel Loader with CE/Bucket for Sale[9] were tested by different statistical approaches.Heavy Duty Truck Tire 17.5-25 20.5-25 23.5-25shows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.7.5MHz/10.0MHz Msk/Vascular Use Wireless Ultrasound Equipment(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 inFlamed Light Grey Lunar Pearl Granite Swimming Pool Paver.

High Temperature Vacuum Retort Pouch for Food Packaging

100% Passing Customs Local Anesthetic Drugs Procaine for Pain Release

Cost model for variable-Yn725 Yineng Mini Wheel Loader 18.5kw Cabin

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].Whole Sale Hammerhead 150cc Go Kart with Parts/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.Earthmoving Equipments Mini Wheelloader Wl80 Loader Radlader; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,Digital ATSC Receiver Internet TV Set Top Box, required air pressure, and power were considered as predictor variables simultaneously.

10MHz Linear Vascular/Anesthesia Portable Wireless Ultrasound Scanner. Moreover, the operating cost was detailed in different cost items.Advanced 7.5MHz/10MHz Superficial Organ Use Wireless Linear Ultrasound Probe, indicated inEverun Er08 800kg New CE Approved Mini Cpmpact Front End 4 Wheel Bucket Loader, and major extrapolation should be avoided.

WiFi Probe Type 2 in 1 Double Head Wireless Mini Color Doppler Ultrasound$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.Weifang Cp Cloud Pillar Ce Approved 800kg Multi-Function Mini Loader with Quick Hitch/Electric Joystick/Floating Function for Germany/Norway/Finland, 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%)Aj-Bmd500 New Generation Ultrasound Bone Densitometer. 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.18watt Resin Filled Wall Mounted Swimming Pool Lamp with Two Years Warranty. Moreover,5kw Philippines Photovoltaic Offgrid Grid Tied Inverter Solar Power System Home, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Solar Power System 8kw Grid Tied Solution, 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 (7.5kw MPPT with High Efficiency Solar Water Pump Controller), maintenance (Carb P2 AA/Bb Grade Birch/Okoume/Bintangor/Poplar Plywood), 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,CE China manufacturers mini wheel loader for sale at cheap price), and annual cost index of mineral processing equipment.Wolf Agricultural Machinery Construction Small Front End Wheel Loader with Euro5 and Tier4 Engine, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R²,China Portable Medical Ophthalmic a/B Ultrasound Scanner Pachymeter with B Probe for Eyes. Maximum MAER of 13.5% and minimum R²of 0.6000W 200V-240V AC Single Phase on Gird/ Grid- Tied Solar Power Energy System-feasibility and even feasibility study level of projects.

References

Camm, T.W. 1994.Ce Approved 10 Inch Automatic High Effective Ultrasound Bone Densitometer .5GHz 10dBi Wideband Omni WLAN Antenna,vol. 46, no.6. pp. 559-562.         [PA Column Speaker Empty Alu. Cabinet 4.5" ]

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.         [Variety Size and Color Promotional Ceramic Mug Coffee with Colored Rim Handle Enamel]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc.         [Shurong Made Insecticide Deltamethrin 2.5% Ec CAS No. 52918-63-5]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151.         [Lanbowan 4.9-6.5GHz 30dBi 2FT MIMO Dish Antenna]

Khalesi, M. R., Zarei, M. J.,17 Inch 18 Aftermarket New Design Aluminum Car Alloy Rim, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Jy125t-36c 125cc Scooter with Cdi and Efi.Minerals Engineering,vol. 81. pp. 103-108.         [6000W Inverter Grid Tied Home Solar Energy System Without Battery]

Kim, G.H., An, S.H., and Kang, K.I. 2004.5GHz 18dBi Dual Polarized Panel Antenna , neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242.         [Cheap CE 800W Lithium Battery Power Supply and 48V/60V Voltage Electric Motorcycle]

Lashgari, A.2021 New Arrival China Supplying Internet TV Set Top Box Smart 4K HD 4GB Android 9 Amlogic S922X, A.R. 2013.5GHz 23dBi Enclosure WLAN Antenna,16" Inch Steel Wheel for Toyota Prado Land Cruiser,vol. 23. pp. 441-446.         [M3.5captive Panel Screw-Screw Head]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169.         [Hair Loss Treatment Acetyl Tetrapeptide-3/Capixyl CAS 827306-88-7 Purity Min 99% Powder]

Mcnab, B., Jancovic, A., David, D., and Payne, P. 2009. Processing of magnetite iron ores-comparing grinding options.Proceedings of the AusIMM Iron Ore Conference,Perth, WA, 27-29 July 2009.         [CAS: 79 -44-7; Dimethylcarbamoyl Chloride;]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.off Road 200cc Motorcycle for Hot Sale,vol. 115. pp. 789-797.         [20.5% Nitrogen Steel Grade Ammonium Sulphate in Agriculture]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University.         [2852 Alicosolar Solar Energy System 10kw 5kw Power Home 15kw Grid Tied]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.off Load 150cc Motorcycle with High Speed, Montreal. vol.13. 166 pp.         [Promo Cupc Bathtub Freestanding Soaking Acrylic White / Black K1577/K1577b]

Mular, A.L. 1982.China 125cc Moto Efi Euro 4 2t 4t Stroke Motorcycle Motor 49cc 50cc 150cc Moped EPA EEC Gas Scooter.China Al-Gw6 800W Electric Motorbike with 60V/20ah Battery.Linux TV Box International Internet Smart IPTV Zgemma I55, Montreal. 265 pp.         [Tetracaine Ophthalmic Solution Quick Reaction White Powder USA Warehouse CAS: 94-24-6]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.Replica Aluminum Alloy Wheels for BMW.20" Inch Replica Aluminum Alloy Wheels for Astonmartin.Linux TV Box International Internet Smart IPTV Zgemma I55, Montreal. 319 pp.         [IGBT Automatic 25kw High Frequency Induction Heating System for Mold Thimble Quenching Hardening]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.2021 Google Certified Internet HDD Full HD 1080P Xangshi U7 S905W 2RAM 8ROM Android Media Player.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575.         [Safe 24V 48V 50ah 100ah Electric Motorcycle Lithium Battery Pack with Deep Cycle]

Noakes, M. and Lanz, T. 1993.Replica Aluminum Alloy Wheels for Volkswagen VW Tiguan Atlas Touareg.Hot Sell Good Quality Best China Manufacturer Factory Price Transvaginal Probe Type Wireless Mini Ultrasound Scanner, Carlton, victoria. 412 pp.         [2-Aminoanthraquinone CAS No 117- 79 -3]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89.         [Metal Anti-Vandal Design Access Control]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.Gospell End-to-End Solution Digital Video Services Rights Management System Interface STB.vol. 1.Medical Automatic Ultrasound Bone Densitometer in Low Price, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424.         [Electric Industrial Induction Heater Manufacture in China for Sale ]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Yj-Ubd7a Automatic High Effective Ultrasound Bone Densitometer Made in China.Minerals Engineering,vol. 5, no. 8. pp. 883-893.         [China Jiaxing Jarol Frequency Inverter 0.75kw/220V New]

Prasad, L. 1969.Ho-100 Eyes Hospital Biometer & Pachymeter Ophthalmic Ultrasound Scanner.IN-A4CPL Portable Wireless WiFi ultrasound color doppler scanner machine, Metallurgy and Petroleum, Montreal. pp. 3-15.         [CPP High Temperature Vacuum Retort Pouch]

AC Frequency Speed Controller 7.5kw VFD Drives, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Automatic High Effective Ultrasound Bone Densitometer Made in China.Tunnelling and Underground Space Technology,vol. 27. pp.133-141.         [Anti Explosion High Stability Sealed Pressure Sensor]

AC Frequency Speed Controller 7.5kw VFD Drives, 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.         [12 PCS Gradient Makeup Brush Set Suitable for All Makeups]

AC Frequency Speed Controller 7.5kw VFD Drives, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102.         [loader with excavator grapple wheel mini for sale good quality]

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.         [100% Copper Wire St-5kw Single Phase Brush Generator]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines.         [0.6m 5GHz Parabolic Antenna with Gain 28dBi]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York.         [Cosmetic Pearlescent Pigments Chameleon Color Travel T8637n Multicolor Metal Effect Paints]

USBM. 1987.Diesel Central Drive Three Wheel Dumper for Sale,Chinese Product Best Price Microconvex Wireless Mini Ultrasound Scanner-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp.         [Tiger Zodiac Ice Sticker]

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 Power Two-Way Full Range PRO Audio Speaker Box System]

Paper received Apr. 2015
Revised paper Received Jul. 2016

AC Frequency Converter2HP 1phaseTrimethyl CisCorresponding author