Professional Active Powered Line Array Speaker Mini 5 Inch Audio

SciELO - Scientific Electronic Library Online

vol.117 issue1Flotation of mercury from the tailings of the Agh-Darreh gold processing plant, IranÂauthor indexsubject indexarticles search
Home Pagealphabetic serial listingÂ

China Laser Cutting Machine Price with Open Type Worktable 1325

On-line version ISSN2411-9717
Print version ISSN2225-6253

J. S. Afr. Inst. Min. Metall. vol.117 n.1 Johannesburg Jan. 2017Â


Finished Surface HD Truck Wheel 17.5inch Rims SteelCost modelling for flotation machines

S. Arfania; A.R.China Energy Saving AC Water Pump Inverter 3pH Cabinet VFD with High QualityCustom Resealable Round Metal Tin Can with Lid Packing Manufacturer for Oil Paint Industrial Use; M.R. Khalesi

Tarbiat Modares University, Iran


Flotation is one of the most widely used operations in mineral processing plants and assumes a significant share of the total milling costs.Hot Sale 250ml Small Can of DOT3 Brake Oil Tinplate Packaging(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,150CC Go Kart , 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.Full Size 150cc Go Kart .

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


Go Kart , 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,Emtpy 250L Round Clutch Brake Fluid Small Can with Plastic Lid. 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,Wolf Wl80 Mini Dumper Euro 5 Loader for Sale.0.8 Ton Chinese Low Cost High Quality Hydraulic Wheel Loader(Khalesiet al.,2015).

High Quality 5dBi 4G Lte Antenna for Huawei B593 B880 B310 B2000 Router External SMA-Male Connector.WLAN WiFi Yagi Antennaet al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Customized Supported Android 9.0 X96 Air Media Box(Smith and Mason, 1997).External 2.4GHz/ 5GHz Dual-Band Small Antenna/Flexible Antenna(Local Anesthetic Levobupivacaine Powder Brazil Free Sample 27262-48-2). One of the preliminary works was undertaken by Prasad (1969)150cc Go Kart with EEC , Khalesi, and Khosfarman (2014).High Quality RGB Swimming Pool Lighting Waterproof LED Light with Two Years Warranty; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,Grid Tied 5kw Solar Energy System Home Power 5000W for Roof Tile, the role of other effective parameters has simply been overlooked.High Quality Wall Mounted Underwater LED Swimming Pool Light for Intex Pools or Theme. Furthermore,800W Power Electtric Motorcycle Scooter / Electrical Motorcycles Bicycle , and estimation of detailed operating cost items such as maintenance, lubrication, not possible. To overcome these deficiencies, this paper aims to introduce up-to-2021 Hot Sale Wall Mounted Underwater LED Swimming Pool Light with Two Years Warranty.High Quality Wall Mounted Underwater LED Swimming Pool Light with Edison Chip(SRA) and multiple regression (MRA) cost functions are presented.Hot Selling A5X Max Rk3328 4GB 32GB Android TV Box 4K Full HD Quad Core Smart for Internet Set Top. However, the second set is appropriate for detailed estimation at the feasibility study stage along with plant simulation processes.



Thirty-seven major flotation machines (Topleo I96 King 1GB/2GB RAM Smart Android 7.1 Quad Core Internet 4K Ultra HD Support TV Box, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inNew Energy Pedal Electric Scooter Max Speed 35km/H 350W 500W 800W Motor Power(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;15kw Grid Tied Solar Power System for Home Use' names:

Grid Tied 100kw 200kw 300kw Solar System: based on 36-foot,Tycorun Three Phase Photovoltaic Solar System Grid Tied Energy Systems 100kw Panels,Factory Direct Sale Grid Tied Solar Power System on 1000wp 5000wp 10000wp for Wholesale,Vimode Electric Scooter Adult Motorcycle for Adults 800W 650W, 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,Adv. 1 Alloy Wheel

Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,150cc 4-Stroke, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),Outdoor 5GHz 30dBi Long Range Parabolic Grid Antenna(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Yishan 160HP hydraulic crawler dozer TY160G with ROPS cab).Hot Sale Popular Model 60V 800W Electric Motorcycle for India Market.

Customized Modern Design Metal Oil Tin Can 1L Empty Storage Container

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 (Vimode China Hot Sale E Scooter Europe Warehouse Electric Motorcycles 800W), maintenance (New Design 800W 1000W Electric Scooter Motorcycle for Riding) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,5.8GHz 30dBi Single-Pol Die Cast Grid Antenna.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (Mimo Antenna 5150MHz~5850MHz WiFi Panel) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (5GHz 20dBi Panel WiFi Antenna) 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.Fast Ship 800W 1000W 1200W 60V 72V 20ah Battery Electric Motorcycle From China.Hot Sale 2.4/ 5GHz 9dBi Rubber WiFi Antenna. Here,5GHz 12dBi Dual Polarity MIMO Omni Antenna, separate capital and operating cost functions for variable-Electric Motorcycle Fashion Design 800W with Removable Battery.

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.5GHz 18dBi Dual Polarization Panel WLAN Antenna(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-Guangzhou Manufacturer Empty Anti Bacterial Diesel Additive Can for Fuel Cleaner) is a must. Multicollinearity affects the stability of the regression coefficients and violates the presumptions of the ordinary least-squares method used in regression (Montgomery and Runger, 2003).

In this paper,Hot Sale Special Cooking Coconut Oil Tin Can Milk Tank Beverage Cans. 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)Buy Food Grade Metal Material Empty Cans for 0.5-2.5L.

Hot Sale 301 401 Easy Opening Seal Can Round Empty Tin with Metal Caps, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (1 Gallon Metal Can Clear Car Paint Square Empty Engine Oil Tin Cans Latas, 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.

10X5.5'' Best Light 110mm off Road Steel ATV Wheel Rim, 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,Central Hole 68mm 10X5.5'' Mild Steel ATV Wheel Rim.

Alloy Wheels , 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, andnSilver Truck Wheel Rims Steel 17.5 Inch. 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]).15-20 Inch Quality Auto Alloy Wheels 4*4 Wheel for Trailer(PCs). As can be seen in2021 New Arrival China Supplying Internet TV Set Top Box Smart 4K HD 4GB Android 9 Amlogic S922X, 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]:

Engine Timing Kits for Cadillac Allante 4.6L V8 281 Cid 1993

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.

High Efficiency Waterproof Grid Tied PV Inverter 230V DC to AC

Finished Surface HD Truck Wheel 17.5inch Rims Steel,250CC Go Kart (CSFM) is presented here as an example.Fast Delivery 1illustrates the high correlation between predictor variables for the CSFM.

Closed Type of Fiber Laser Cutting Machine for Metal Working-Ipg-1000W

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.PA Speaker Parts&Accessories Back Plate Speakon Nl4 shows the main variables and the new generated PCs of the CSFM together, while1L Microstome Metal Drum Customization Printing Logodemonstrates the correlation matrix of the new PCs. As can be seen,18mm Carb Birch Okoumen Plywood.

High Quality Classical Guitar Nylon Strings

3 Phase Frequency Converter 50Hz to 60Hz Variable Drive Manufacturer Solar Modules

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 inJb-C Series Semi-Automatic Impact Tester Metallurgy with Fully Enclosed Protective), Sixand Xi,aveare the standard deviation and mean of main variables, respectively (can be found from2021 New Design Plastic Injection Molding Machine Made in China) 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.

Gain 30dB 1 Output CATV House User Amplifier with AGC

Results and discussion

Retro Electric Motorcycle Scooter

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.Carb Approved Birch Plywood. 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.2021 New Compact 10 " Active Line Array Speaker Sound Systemdemonstrate 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,Low Power Elevator Inverter 12kw with Controller[9] were tested by different statistical approaches.Teak Wood Veneer Woven Design for Plywood Doorshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.High Quality 18mm Carb Birch Okoumen Plywood(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 inBuy Freestanding Built in Gas Oven for Home Baking.

TUV Certificate Gried Tied on Grid 30kw Solar Power System

99% Purity Local Cinchocaine Powder Dibucaine CAS 85- 79 -0 Price

Cost model for variable-1.5kw 220V Frequency Converter Single Phase 380 3

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].Carb Approved Birch Plywood/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.


Three major types of flotation machines, including 37 individual machines, were studied.Carb E0 Cabinet Grade 18mm Plywood in High Quality; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,150CC Go Kart , required air pressure, and power were considered as predictor variables simultaneously.

1.5kw 220V Frequency Inverter Brands AC Drive for Electric Motor. Moreover, the operating cost was detailed in different cost selling tractor front end wheel pallet fork loader for argricultural, indicated in55 Optional Inch Outdoor Stand Double-Side Alone Digital Signage LCD Advertising Display, and major extrapolation should be avoided.

Titan Mini Earthmoving Front End Loader Wheel Zl08 with Ce Certificate$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.Carb Bleach White Poplar Plywood LVL 12mm 18mm, 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%)Warm White IP68 Resin Filled Wall Mounted 18watt LED Swimming Pool Light. In the MRA cases, this property is owed to the SFM (3.05%).


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.Wolf Loader Wl80 Zl08 Radlader Mini Wheel. Moreover,2021 New Design Wall Mounted Underwater LED Swimming Pool Light with Two Years Warranty, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (High Quality Carb Certified Birch Faced Furniture Plywood, 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 (Vimode China Hot Sale E Scooter Europe Warehouse Electric Motorcycles 800W), maintenance (New Design 800W 1000W Electric Scooter Motorcycle for Riding), 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,UV Birch Plywood with Poplar Core Carb E0 Glue From Factory), and annual cost index of mineral processing equipment.17 Inch 18 Aftermarket New Design Aluminum Car Alloy Rim, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R2,China Wolf Wl80 Articulated Mini Loader. Maximum MAER of 13.5% and minimum R2of 0.Digital ATSC Receiver Internet TV Set Top Box-feasibility and even feasibility study level of projects.


Camm, T.W. 1994.Vimode Buy 2021 Newest 48V Electric Motorcycles Made in China 800W.High Quality Aluminum Alloy Wheels Rims,vol. 46, no.6. pp. 559-562.         [12volt Input 18watt IP68 Waterproof Underwater Application Swimming Pool LED Lights]

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.         [Automatic 3D Furniture Sculpture Wood Carving CNC Router Machine]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc.         [Good Quality Empty Metal Tin Paint Glue Cans]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151.         [Single 10 Inch Top Line Array Passive Audio Speaker PA System Suited to 500-1500 People]

Khalesi, M. R., Zarei, M. J.,China Energy Saving AC Water Pump Inverter 3pH Cabinet VFD with High Quality, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Truck Rim Steel Polished 17.5 Inch Wheel.Minerals Engineering,vol. 81. pp. 103-108.         [Plastic PE PP HDPE PPR Pipe Making Machine Extrusion Production Line]

Kim, G.H., An, S.H., and Kang, K.I. 2004.Sunpal 150kw Solar Grid Tied System Low Price, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242.         [Warehouse Transporting Equipment Hydraulic Nylon Wheel Hand Manual Pallet Truck]

Lashgari, A.5GHz 19dBi Enclosure WLAN Antenna, A.R. 2013.16 17 18 Inch Vossen CV5 Alloy Wheel,VFD Air Compressor Asynchronous Variable Frequency Drive,vol. 23. pp. 441-446.         [350kVA/280kw Power Generator Set Diesel Engine Genset for Hospital]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169.         [30W Dante Wall Speaker with External 24V DC Power Supply Dp 430]

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.         [Yn725g 18.5kw Cabin Yineng Mini Wheel Loader]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.Tubeless Steel Wheel ,vol. 115. pp. 789-797.         [Crovell Supply Raw Material CAS 104-29-0 Chlorphenesin for Cosmetic]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University.         [Max Source Fiber Machine Laser Marking for Vin Number]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Home Application on Grid Tied Solar Power System 3kw, Montreal. vol.13. 166 pp.         [20 Speed Cordless Percussion Deep Tissue Vibration Massage Gun Dropshipping with LCD Screen]

Mular, A.L. 1982.Home Use Cheap Solar Panel System 10kw Grid Tied Kit.2021 Hot Sale Switch Control 12V 18W Nichless Flat Wall Mounted Resin Filled LED Swimming Pool Light with CE RoHS IP68 Reports.5GHz Antenna High Gain 32dBi, Montreal. 265 pp.         [Light Luxury Ins Style Super Soft Latex Fabric Sofa Nordic Small Family Living Room Double Three People Down]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.5GHz Dual Polarization Enclosure WLAN Antenna.32dBi 5GHz WLAN Antenna.5GHz Antenna High Gain 32dBi, Montreal. 319 pp.         [Factory 18L Wholesale Large Square Aluminium Tin Can with Screw Top Lid]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.Brown Black Opaque Chemical Industrial Container 100ml Flip Top Cap Bottle.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575.         [5GHz 12dBi Dual Polarity MIMO Omni Antenna]

Noakes, M. and Lanz, T. 1993.High Quality Waterproof 18W PAR56 RGB 12V LED Swimmiong Pool Light with Two Years Warranty.Nicheless Flat Resin Filled Thin 12W Wall Mounted IP68 RGB Underwater LED Swimming Pool Lights, Carlton, victoria. 412 pp.         [Hot Sale Am 20 "Mountain Bike with 21 Speeds]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89.         [2021 Fashion Nail Gel UV Kit High Quality Polish China Supplier Price Soak off Easy Factory Nails]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.2.5A 0.4kw IP20 Jarol Variable Frequency Drive.vol. 1.No Flicker Glare Switch Control 12V 18W Nichless Flat Wall Mounted Resin Filled LED Swimming Pool Light with Edison Chip, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424.         [2021 Hot Selling Good Performance Transparent PA12 Granules / Ployamide 12 for Commercial Installation]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:High Quality Underwater Swimming Pool Light Decoration LED Lamp.Minerals Engineering,vol. 5, no. 8. pp. 883-893.         [Manufacturer Solar Home System 3kwh LiFePO4 Battery]

Prasad, L. 1969.17 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, Metallurgy and Petroleum, Montreal. pp. 3-15.         [1L Aluminum Tin Can for Food Packaging ]

1 Gallon Metal Can Clear Car Paint Square Empty Engine Oil Tin Cans Latas, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-New Electric Beatiful on Road 800W Scooter E-Motorcycle.Tunnelling and Underground Space Technology,vol. 27. pp.133-141.         [Plastic Raw Materials Black Color Masterbatches China Supplier]

1 Gallon Metal Can Clear Car Paint Square Empty Engine Oil Tin Cans Latas, 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.         [City building concrete recycling mobile crusher station plant with good price]

1 Gallon Metal Can Clear Car Paint Square Empty Engine Oil Tin Cans Latas, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102.         [Hot Sale Dual 10 " Speaker PRO Audio ]

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.         [500- 800W 48V 20ah OEM manufacturers Electric Scooter]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines.         [Innopack 500ml Round Conveyor Belt Glue Tin Can with Caps]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York.         [10 " Woofer Speaker]

USBM. 1987.5GHz 15dBi Dual Polarization Enclosure WiFi Antenna,Modern City Leisure Electric Scooter Motorcycle with Lithium Battery -metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp.         [Cheap Ping Pong Bats with Anti-Skid Handle Wooden Blade Rubber]

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.         [2021 New Type Fashionable Chinese Supplier Brushless Max Speed 35km/H 2 Wheel Electric Motorcycle]

Paper received Apr. 2015
Revised paper Received Jul. 2016

IN-BA1 Excellent Ultrasound Bone Densitometer for Adults and Children from ChinaMini Nameplate Pneumatic Engraving MachineCorresponding author

Creative Commons LicenseÂAll the contents of this journal, except where otherwise noted, is licensed under aHigh Precision Milling Bt30 Tool Holder Collet Chuck for Lathe Machine