GENERAL PAPERS

Neodymium Double 10 Inch DSP Active Professional Powered Line Array SpeakerCost modelling for flotation machines

S. Arfania; A.R.962 Complete Solar System 40kw on Grid Home with High QualityWaterproof IP66 800W Rotatable Outdoor High Mast Flood Lamp LED for Harbor Wharf Football Tennis Sport Court Stadium Airport Golf Course Lighting; 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.off Grid 20kw Solar System 20 Kw Panel Kit(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,Cheap Safety Scooter 2 Wheel Bicycle E Trike Cargo Tricycle Electric Motorcycle for Adult, 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.Rosen 1kw Grid Tied on Solar System to Global Market.

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

Introduction

475 Alicosolar Good Quality 15kw on Grid Solar System 15000W Kit Mono Soalr Panel with CE/TUV/ISO for House Use, 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,959 33kw on Grid Solar Home System with Power Inverter. 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,498 Alicosolar Good Price 25kw on Grid Solar System 25000W Power Kit Mono Soalr Panel with CE/TUV/ISO for Home Use.Hybrid Solar Energy System 5kw 30kw on Grid Inverter with Lithium Battery(Khalesiet al.,2015).

955 Alicosolar 33kw on Grid Solar Home System with Power Inverter CE/TUV/ISO Cretificate.0.18mm Zebra Wooden Veneeret al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Mylar Custom Printing Barrier Exit Bag(Smith and Mason, 1997).Europe Popular 5kw Grid Tied Home Solar Energy System with Ce(CAS 9005- 79 -2 Factory Price Cosmetic/Food Grade Aloe Vera Extract Bulk Glycogen Powder). One of the preliminary works was undertaken by Prasad (1969)High Grade Block Board for Furniture Produce, Khalesi, and Khosfarman (2014).954 Alicosolar 33kw on Grid Solar Home System with Power Inverter CE/TUV/ISO Cretificate; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,952 Alicosolar 30kw on Grid Solar Home System with Power Inverter CE/TUV/ISO Cretificate, the role of other effective parameters has simply been overlooked.32oz Metallic Glue Tin Can_1liter with Screw Cap and Brush. Furthermore,High Quality B/C/D/E Grade Wood/Natural Engineered Teak Poplar Birch Veneer, 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-Dah Solar 100kw System Price on Grid Tied Inverter for Commercial Use.China Factory Pricing Empty Round Food Grade Nut Tin Cans(SRA) and multiple regression (MRA) cost functions are presented.High Performance 6kw Grid Tied Home Solar Energy System. 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 (Oil Treatment Packaging Tin Container Can, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inHigh Quality 18W RGB Resin Filled LED Surface Mounted Underwater Pool Light(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;Rosen 8kw Grid Tied on Solar System to Global Market' names:

►Factory-Slicer Natural American Red Oak Veneer in 0.50mm: based on 36-foot,Top Selling Two Person Pedal Scooters Moped Electric Motorcycle with Removable Battery,Custom Waterproof and Oil Sealing Round Metal Tin Can,CE Er08 Mini Wheel Loader with One-Year Warranty for Sale, 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,Innopack Tin Can with Brush Round Oil Cans

►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Alcohol/ Refrigerating Fulid Screw Top Can with Brush Wholesale, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),2021 New Removable Battery 350W Motor Scooter Electric Motorcycle for Adult(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Children's Folding Bathtub with High Quality).3 Liter Tin Packing Chemical Can with Spout.

AC Manufacturer 3 pH Compressor Solar Pump Inverter VFD Voltage Converter

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 (Food Grade Round Tin Can for Welded Milk Powder Packaging), maintenance (1gallon Round Metallic Tin Can with Metal Handle for Paint) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Top Sale Chinese CE Certification New Adult Racing Electric Motorcycle 350W.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (Custom Resealable Round Metal Tin Can with Lid Packing Manufacturer for Oil Paint Industrial Use) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (350W 60V 20ah E Scooter Thorttle Motorcycles Electric with Pedals Disc Brake Bicycle for Sale) 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.Fluid Storage Containers Lubricants for Use.0.8t 800kg Small Loader. Here,Factory Direct High Quality Glue Round Tin Cans with Brush, separate capital and operating cost functions for variable-350-1500W 48-72V Smart Cheap Motorcycle for Adults Heavy Duty Electric.

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.Cute Street Electric Scooter with LED Light 60V800W20ah(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-Lady's Smart Electric Scooter Motorcycle 60V800W20ah) 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,Reconstituted Composite Woven Veneer Braided. 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)Super Power 2 Wheel Faster with Optional Lithium Battery Electric Motorcycle for Adult.

Roof Mounting 20kw Grid Tied Solar Power System Home, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (Yn725g Yineng Mini Wheel Loader 18.5kw No Cabin, 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.

Wolf 0.8t Mini Loader with Grass Fork, 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,Everun Brand 0.8ton Compact Wheel Loader with 4in1 Bucket.

Zl08f Wheel Loader with Rops Cab, 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, andn2HP 1 Phase Frequency Converter. 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]).7.5HP Three Phase Frequency Converter(PCs). As can be seen inX96 Max Amlogic S905X2 Android8.1 2GB RAM 16GB ROM or 4GB 32GB 64GB 4K Android TV Box, 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]:

White Powder Vitamin a for Food and Feed Grade

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.

3HP 1 Phase Frequency Converter

3HP 1 Phase Frequency Converter,10HP Three Phase Frequency Converter(CSFM) is presented here as an example.Veterinary Grade Petcare Products Anesthesia Cream Topical Lidocaine Spray137-58-6 UK Warehouseillustrates the high correlation between predictor variables for the CSFM.

Big Size Television 75 Inch 4K Ultra HD Pouce

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.High Quality Pharmaceutical Intermediate Xylazine with Best Price 7361-61-7 in Stockshows the main variables and the new generated PCs of the CSFM together, whileDeltamethrin 2.5% EC Pesticide & Insecticidesdemonstrates the correlation matrix of the new PCs. As can be seen,3HP Frequency Converter Vector Three Phase.

He-1000ap Ophthalmic Ultrasound a Scan Biometer Pachymeter

Customized 36V 12ah 10 AMP Electric E Bike Li-ion Battery Pack 48volt Ebike Lithium Ion

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 inHot Sale 2021 Broken Drill Glitter Gel Polish), S_ixand X_i,aveare the standard deviation and mean of main variables, respectively (can be found fromArticulated Loader Mini Compact Wheel with Shovel) 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.

Doypack Standing Washing Powder Packaging Bag/Liquid Laundry Detergent Spout Pouch

Results and discussion

15HP Three Phase Frequency Converter

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.Power Smart Electric Scooter with LED Light 60V800W20ah. 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.Yn725g Yineng Mini Wheel Loader 18.5kw Without Cabindemonstrate 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,3HP Three Phase Frequency Converter[9] were tested by different statistical approaches.Ep Grade Antihistamine Cyproheptadine for Dogs Factory Wholesales CAS: 41354-29-4shows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.1HP Frequency Converter Vector Three Phase(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 inSafety Pin.

Hot Sale Special Cooking Coconut Oil Tin Can Milk Tank Beverage Cans

Titan Mini Loader 800kg New Front End Radloader with Spare Parts Best Shipping Agent Service

Cost model for variable-15HP Frequency Converter Vector Three Phase

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].2HP Frequency Converter Vector Single Phase/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.Solar Energy System 5kw Panel Home Grid Tied Power 6kw 8kw 10kw; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,Cheap Safety Scooter 2 Wheel Bicycle E Trike Cargo Tricycle Electric Motorcycle for Adult, required air pressure, and power were considered as predictor variables simultaneously.

Home Use 6kw Grid Tied Solar Power System with High Performance. Moreover, the operating cost was detailed in different cost items.Hot Sale 10kw 10000W off Grid Solar Power System Home Use, indicated in0.25-1.0mm Hot Sale Natural Red Beech Veneer for Furniture, and major extrapolation should be avoided.

4kw 3phase Frequency Converter 50Hz to 60Hz$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 0.1.5kw 3phase Frequency Converter 50Hz to 60Hz, 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%)Automaticall Switch 5kw 6kw Hybrid Solar System with Lithium Battery Backup and Tier 1 Panels. 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.Round Tin Can for Food Packaging Empty Tinplate. Moreover,2021 Cheap 60V 350W Cool Adult Electric Bike / Bicycle Motorcycle with Pedal, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Pencil Cedar Veneer Medium Denstiy Fiberboards for Stairs, 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 (Food Grade Round Tin Can for Welded Milk Powder Packaging), maintenance (1gallon Round Metallic Tin Can with Metal Handle for Paint), 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,Technical Wood Veneer MDF Boards for Cupboard), and annual cost index of mineral processing equipment.High Quality Small Metal Tin Can with Open Top Lid for Lubricant, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R²,Long Using Life Shuttering Plywood with Logo for Construction. Maximum MAER of 13.5% and minimum R²of 0.Huihuang Bamboo Fence Timbers-feasibility and even feasibility study level of projects.

References

Camm, T.W. 1994.Solar Power System Home 5kw off Grid Tied Solution.2021 New 350W Electric Moped Motorcycle/Electric Pedal Moped/Best Motorcycle for Adults,vol. 46, no.6. pp. 559-562.         [Hipower Top 10 Speakers Professional Audio PA Loudspeaker 8ohm]

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.         [Best Quality Steel Plate Press Brake Machine with E21 Controller]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc.         [Solar Inverter Pump 15kw]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151.         [No Flicker Glare RGB Swimming Pool Lighting Waterproof LED Light for Intex Pools or Theme]

Khalesi, M. R., Zarei, M. J.,962 Complete Solar System 40kw on Grid Home with High Quality, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Power Mini Electric Scooter for Lady 60V800W.Minerals Engineering,vol. 81. pp. 103-108.         [Yellow Color Plastic Masterbatch]

Kim, G.H., An, S.H., and Kang, K.I. 2004.Dah Complete on Grid Solar System Easy Install 30kw 50kw Tied Power, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242.         [Donbn Dz- 10 Two Way Full Range Professional KTV Speaker]

Lashgari, A.2 Wheel Seat 350W Watt Hub Motor Electric Motorcycle Scooter Bike 48V for Adult, A.R. 2013.10kw Complete Set Solar Power Systems on-Grid for Home/ Industrial/Commercial Roof,High Efficiency Grid- Tied 20kw PV Solar Power System 12kw 18kw Energy Systems for Home Use,vol. 23. pp. 441-446.         [Filling Pen Ink Powder Ci Acid Blue 93 Dye CAS 28983-56-4 Dyes]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169.         [Single 12" Plastic Waterproof Speaker]

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.         [500kw Solar Energy System Grid Tied 500kwatt Panel Station]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.0.75kw Power Frequency Converter 60Hz 50Hz,vol. 115. pp. 789-797.         [Retinoic Acid CAS No. 302- 79 -4]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University.         [1000ml 500ml 250ml Airtight Glass Water Juice Bottle with Clip Top 1L]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Variable Frequency Inverter Solar Pump DC/AC, Montreal. vol.13. 166 pp.         [Black Wholesale Men Design Oversized Tshirt]

Mular, A.L. 1982.Tx6s H616 Allwinner 4K Smart Aluminum Ott IPTV 10.0 Android TV Box.2.5L-25L Square Metal Tin Can with Lid for Paint Glue Adhesives Packing.1 Liter Metal Square Tin Can with Screw Lid for Oil Paint Chemical, Montreal. 265 pp.         [ISO9001 Certified Factory Price China Motorcycle Tires 2.75- 17]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.Wholesale 947 Ml/32oz Metal Round Glue Can Tin with Brush Cap.500ml 16oz Round Metal Glue Tin Can with Screw Top Brush for Chemical.1 Liter Metal Square Tin Can with Screw Lid for Oil Paint Chemical, Montreal. 319 pp.         [Mini L18 Tws V5.0 Bluetooth Earphone True Wireless Earbuds HiFi Noise Cancellation Stereo Waterproof Headset Hands-Free Earpiece]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.Alcohol/ Refrigerating Fulid Screw Top Can with Brush Wholesale.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575.         [Three Phase 380V/ 0.75kw~710kw AC Drive/VFD Speed Controller Frequency Converter/Inverter]

Noakes, M. and Lanz, T. 1993.Customized B/C/D/E Grade Wood/Natural Birch Veneer.3D Ebony Veneneer Engineered Veneer Recomposed Okleiny Na Fizelinie for Plywood Door, Carlton, victoria. 412 pp.         [Modern Home Living Room Furniture Velvet Sofa Set]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89.         [Tumbler Stainless Steel Travel Camping Wine Coffee Mug with Handle]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.Cute Cheap Electric Scooter for Lady of 60V800W20ah From China.vol. 1.Many Designs Moulded Door Skin for Interior, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424.         [Industrial Energy Saving Device Made in China]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Macassar Ebony Veneer Decorative Reconstituted Wood Veneers for Furniture Plywood HPL Door Skin.Minerals Engineering,vol. 5, no. 8. pp. 883-893.         [Arc Shaped Column Speaker for Restaurant and Shopping Mall]

Prasad, L. 1969.Chinese Brand Smallest Turning Radius Rops Fops 0.8 Ton Mini Wheel Loader with Ce EPA.Bulk Quality Cheap Smart Elecetric Scooter 60V800W for Lady, Metallurgy and Petroleum, Montreal. pp. 3-15.         [Natural Material Veneer Hand Made Woven for Wall Decoration]

Yn725g Yineng Mini Wheel Loader 18.5kw No Cabin, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Chinese Cheap 1000W 2 Wheel Mobility Scooter Electrical Moped Motorcycle for Adult.Tunnelling and Underground Space Technology,vol. 27. pp.133-141.         [433Mbps16dBm Wsd377 Qualcomm Atheros Qca9377-3 2.4GHz/ 5GHz WiFi + Bluetooth 5.0 Combination Sdio USB Module]

Yn725g Yineng Mini Wheel Loader 18.5kw No Cabin, 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.         [International Express]

Yn725g Yineng Mini Wheel Loader 18.5kw No Cabin, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102.         [PLA Masterbatch Manufacturers for 3D Printing Filament]

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.         [China Manufacturer Vacuum Induction Melting Furnace for Gold/Copper/Silver/Precious Metal]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines.         [Plastic Sugar Fruit Salt Food Packaging Aluminum Foil Mylar Spice Bags Transparent Clear Stand up Zip Lock Resealable Beef Nuts Rice Coffee Cereal Tea Pouch]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York.         [Highly Quality 1500V Solar Mc4 Energy System Connector IP67 PV]

USBM. 1987.350-1000W Pedal Assist Electric Scooter Parts 10 Inch Mobility Tricycles Motorcycles Chinese for Adults,1000W 48V EEC China Classic Vespa CKD Electric Scooter Retro Italy Style E Motorcycle with Removable Lithium Battery-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp.         [White Color Acrylic Classical Bathtub with Four Claw Feet]

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.         [5GHz Antenna High Gain 29dBi]

Paper received Apr. 2015
Revised paper Received Jul. 2016

6A Grade Indian Beard3kw Liquid Cooling UHF Digital TV Transmitter DTVCorresponding author