GENERAL PAPERS

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S. Arfania; A.R.Yn725 Yineng Mini Wheel Loader 18.5kw No CabinPA Horn Loaded Speaker Professional Loudspeaker; 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.Jarol Frequency Inverter with High Quality (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,Linyi 9mm/12mm/15mm/18mm Pine/Bintangor/Okoume Film Faced Plywood, 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.China Hot Sale Frequency Converter/Inverter 380V 50/60Hz.

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

Introduction

Residential Grid Tied 6kw Solar Power System for Home, 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,Best Factory China Environmentally Friendly 800W CE Certification Electric Motorcycle for Adult. 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,Good Quality Factory Directly Electric Motorcycle 800W 1000W 60V for Adults.on Grid Solar Panel System 30kw Tied Home Power(Khalesiet al.,2015).

Tractor loader/ mini loader with four wheels for loading.2021 60V 20ah EEC Motorcycle Electric Moped Scooter 500/ 800W Motorbikeet al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Changhong Film Stack Flexo Printing Machine(Smith and Mason, 1997).Chinese Industrial Titan Small 0.8 Ton Articulated Earth Mover Euro Auto Mini Farm Truck Wheel Tractor Front End Loader for Sale(New Design Stretch Mark Removal Beauty Machines). One of the preliminary works was undertaken by Prasad (1969)Newest Hot Sale Cheap Chinese Modern Self Balancing Mobility Adult Lithium Battery 800W Electric Motorcycles Scooters, Khalesi, and Khosfarman (2014).Three Phase Frequency Inverter Made in China Hot Sale; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,0.8ton mini wheel loader with small bucket for multifunctional use, the role of other effective parameters has simply been overlooked.Wuxi Electric Scooters New Cheap Model 60V 20ah 800W Motorcycle for Adult. Furthermore,2 Wheel Electric Motorcycle with Lead Battery, 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-Solar Panel System 20kw Grid Tied Power for Home.5kw Solar-Diesel Generation Hybrid Grid- Tied Power System(SRA) and multiple regression (MRA) cost functions are presented.Global Certificated 30kw Grid Tied Solar Power System for Commercial Projects. 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 (2852 Alicosolar Solar Energy System 10kw 5kw Power Home 15kw Grid Tied, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inNatural Wood Sapele Veneer Plywood for Furniture Grade(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;Cheap Commercial Plywood for Construction Decoration and Furniture Use' names:

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The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),220VDC to 220VAC Variable Frequency Inverter(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (10 FT patio market umbrella replacement canopy).Solar Pump Inverter 1.5kw AC Drive Frequency Welding Machine.

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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 (Electrical VFD Frequency Inverter Three Phase 220V 380V 7.5/11kw for Solar Pump), maintenance (Yn725 Yineng Mini Wheel Loader 18.5kw Cabin) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,380V 400Hz 3p AC Drive Hot 15kw Frequency Converter.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (Single Phase Input and Output 220V Able 640 Static Frequency Converter 400Hz) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (3 Phase Mini AC DC Frequency Inverter Motor Speed Controller Power Supply 5.5kw-110kw) 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.VFD Frequency Converter Inverter for Constant Pressure Water Supply.AC Drive Solar Pump Inverter 220V 380V Three Phase Inverters. Here,7.5HP Elevator Inverter Price Electronics 220V 240V Three Phase Pump, separate capital and operating cost functions for variable-large cabin and powerful engine Customized 0.8ton mini wheel loader.

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.Qingzhou 0.8ton Shovel Loader Small Front with Bucket for Sale(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-Eougem 0.8ton Articulated Payloader Zl08 with Changchai Engine) 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,AL908 0.8ton Wheel Loader Machinery for Sale. 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)Chinese Everun Zl08 800kg 0.8 Ton Compact Small Mini Wheel Loader with Snow Bucket.

800kg China Small Front High Quality Wheel Loader for Sale in Europe, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (Melamine Glue WBP Commerical Plywood, 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.

Decorative Pine Groove Plywood Veneer Fancy, 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,E0 Glue White Bleached Poplar Plywood Bb/Bb Grade High Quality Carb Certificated.

18mm Brown Film Faced Finger Jointed Plywood for Concrete Formwork, 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, andn18mm Embossed Melamine Faced Commercial Plywood for Furniture Making. 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]).Filmfaced Plywood with High Quality and Cheap Price(PCs). As can be seen inGuaranteed 99% Sarms Steroids Supplements Mk-677 UK Shipping Free, 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]:

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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.

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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.Diesel Engine Eim630-465 12V Eim630-466 24V 258 -9755 PCB650-091 650-092 Generator PCB Controller Panel Circuit Board Interface Module Speedshows the main variables and the new generated PCs of the CSFM together, whileCAS 79 -14-1 Glycolic Acid 70%demonstrates the correlation matrix of the new PCs. As can be seen,AC Drive.

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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 in450b Stepper Motor and Hqd Spindle 1325 Woodworking 3 Axis CNC Router /Wood), S_ixand X_i,aveare the standard deviation and mean of main variables, respectively (can be found fromOxygen Absorbers Food Packaging Vacuum Packed Bag for Cookies) 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.

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Results and discussion

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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.Sell Well 800W 60V Electric Motorcycle for Daily Riding. 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.Tire Brands to Avoid 2.50- 17 Solid Tire.demonstrate 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,China Reliable Quality 3.7kw 3-Phase Solar Water Pump Inverter for Irrigation System[9] were tested by different statistical approaches.Professional Stage Line Array System Dual 10'' Speakershows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.15kw Grid Tied Solar System(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 inCustom manufacturer of disposable diapers and.

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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].0.5HP Elevator Inverter Price Electronics 220V 240V Three Phase Pump/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.12kw Grid Tied Complete Set Easy Installation Solar Energy System for Home Use or Industrial; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,Linyi 9mm/12mm/15mm/18mm Pine/Bintangor/Okoume Film Faced Plywood, required air pressure, and power were considered as predictor variables simultaneously.

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12kw Grid Tied Solar System$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.Chinese Frequency AC Drive Pure Sine Wave Inverter Mini Water Pump Motor Controller, 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%)200cc/300cc Adults Racing Go Kart for Sale Ce Certificate. 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.Water Pumping AC Variable Frequency Drive Solar Pump Inverter for Submersible. Moreover,0.4kw 0.5HP Elevator Inverter Price Electronics 220V 240V Three Phase Pump, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Jarol Strong Overload Capacity AC Drive Frequency Inverter , 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 (Electrical VFD Frequency Inverter Three Phase 220V 380V 7.5/11kw for Solar Pump), maintenance (Yn725 Yineng Mini Wheel Loader 18.5kw Cabin), 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,China Pumping AC Variable Frequency Drive Solar Pump Inverter for Submersible), and annual cost index of mineral processing equipment.Sporty Electric Scooter , and over- extrapolation could result in misguiding estimates.

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References

Camm, T.W. 1994.Best Selling 4X4 Farm ATV.Cheap Racing Go Kart for Sale 200cc Water Cooled Zyao,vol. 46, no.6. pp. 559-562.         [Android Digital Signage Intelligent Hand Sanitizer Display]

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.         [6oz/ 10oz /12oz Wine Cup Egg Shape]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc.         [Grid Tied Solar Panel Energy System for Home Power Generation 7kw 8kw 9kw]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151.         [Samsung LTI550HN16 1920X1080P monitor LCD video wall]

Khalesi, M. R., Zarei, M. J.,Yn725 Yineng Mini Wheel Loader 18.5kw No Cabin, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Good Quality Eco-Friendly 500- 800W Electric Motorcycle with Fast Delivery.Minerals Engineering,vol. 81. pp. 103-108.         [Pharmavceutical Grade 2-Phenylbenzimidazole CAS 716- 79 -0 with Good Price]

Kim, G.H., An, S.H., and Kang, K.I. 2004.Suspension Delivery Chinese 800W Electric Motorcycle Small Long Range Accessories Two Wheels, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242.         [China Ethyl 2-Bromovalerate Liquid CAS 615-83-8]

Lashgari, A.Amlogic Chipset S905X2 Quad Core Android8.1 4K Smart Internet TV Box T95q, A.R. 2013.Plywood Mdo / Hdo for Concrete Formwork Slab Form,Electric Scooter/ Motorcycle/TM-Monya,vol. 23. pp. 441-446.         [55" Infrared Touch Screen]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169.         [Diesel Engine Parts Fuel System Nozzle Dlla145pn574]

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.         [18" Remy Hair Lace Front Closure Natural Color Body Wave]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.Electric Scooter with Anti-Theft Motor Lock ,vol. 115. pp. 789-797.         [Digital Tuner for Guitar ]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University.         [Comaccord D and E Grade 0.26mm Birch/Oak/Ash Face Veneer for Vietnam Furniture Plywood]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.Hot-Sale Sporty Electric Motorcycle Mn5, Montreal. vol.13. 166 pp.         [High End 2 Post Lift Wheel Alignment Machine for Sale]

Mular, A.L. 1982.Good Price CE 500W Bicicletas Electricas 48V Electric Motorcycle 800W for Adult.RGB/White 18W PAR56 LED Swimming Pool Light.PAR56 IP68 Waterproof Outdoor Underwater LED Swimming Pool Light, Montreal. 265 pp.         [Dust Collector Hammer Mill Shaker]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.PAR56 316ss 18watt LED Underwater Swimming Pool Lights with PC Niche.18W Recessed IP68 PAR56 LED swimming Pool Underwater Light.PAR56 IP68 Waterproof Outdoor Underwater LED Swimming Pool Light, Montreal. 319 pp.         [Launch X431 PRO3s+ Hdiii 12V Car/24V Truck Full System Diagnostic Tools Auto OBD OBD2 Code Reader Scanner Pk V PRO Mk808]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.18W RGB Underwater LED PAR56 Bulb Light for Swimming Pool Lighting.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575.         [Medical Machine / Multipolar RF Facial Beauty]

Noakes, M. and Lanz, T. 1993.Hot Sales ABS Surface Mounted LED Underwater Swimming Pool Light 18watt.WiFi Control IP68 PC Surface Mounted Underwater Lights 18W 24W 35W RGBW LED with 2year Warranty, Carlton, victoria. 412 pp.         [Fully Automatic Shrink Wrapping Packing Machine]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89.         [30s/60s/90s Nail Supplies Salon Gel UV Light Lamp for Curing Polish 72W Print Your Brand]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.24watt IP68 Resin Filled Flat LED Swimming Pool Underwater Light.vol. 1.The Thinnest Wall Pool Underwater Swimming Light 18 Volts, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424.         [PA Speaker Parts of T24 12 Inch ]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Rosen 7kw Grid Tied on Solar Panel System.Minerals Engineering,vol. 5, no. 8. pp. 883-893.         [Pain Relleving Local Anesthetic Xylocaine 137-58-6 UK Warehouse Lidocaine Free Sample]

Prasad, L. 1969.11kw Grid Tied Solar Energy System Industrial Power Supply.Customized 18mm Carb Birch Okoumen Plywood, Metallurgy and Petroleum, Montreal. pp. 3-15.         [Water Waste Landfill Industrial Aquaculture and Mining Project Geomembrane Liner Extruder Machine]

Melamine Glue WBP Commerical Plywood, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-China Plywood for The Furniture/Construction.Tunnelling and Underground Space Technology,vol. 27. pp.133-141.         [Vintage Chinese Factory Customizable Classical Retro Style Cruiser Ebike Moped]

Melamine Glue WBP Commerical Plywood, 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.         [Foshan Hot Sale Marble Look Quartz Stone for Kitchen Countertops/ Island]

Melamine Glue WBP Commerical Plywood, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102.         [300cc Cargo Tricycle of Asia Market]

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.         [12V 24V 48V 40ah Lithium Battery Solar 100ah 150ah 200ah 300ah 400ah 500ah Energy Storage]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines.         [Wall Mount Speaker Bracket ]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York.         [High Effective Automatic Ultrasound Bone Densitometer]

USBM. 1987.3-18mm Melamine Plywood/Melamine Board/Fancy Paper Face Plywood for Indoor Use,Factory Direct Sale on Grid Complete Tied Solar Systems 1kw 10kw Panel System-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp.         [Good Performance LED Garden Light & Outdoor]

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.         [Hot Sale Model V20 Dual 10 Inch Three-Way Audio Small Line Array Speaker]

Paper received Apr. 2015
Revised paper Received Jul. 2016

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