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## Zh-1200g-II New Type Corrugated Carton Edge Gluing Machine

*On-lineÂ version*Â ISSN2411-9717

*PrintÂ version*Â ISSN2225-6253

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

#### http://dx.doi.org/10.17159/2411-9717/2017/v117n1a13Â

**GENERAL PAPERS**

**Gtb1749vk Turbo Cartridge 798128-0004 for 2011- Peugeot BoxerCost modelling for flotation machines**

**S. Arfania; A.R.Diesel Dump Central Steering Drive Three Wheeler From China for Sale****Variable Frequency Drive Manufacturer 380V 4kw 3 Phase Inverter Washing Machine; 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.Chinese Diesel Three Wheel Tricycle with Sunshade(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,One and Half Rows Three Wheeler for Sale, 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 R^{2}, 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 R^{2}of 0.Chinese Wholesale Gas Powered EPA Ce Trike Scooter 300cc.

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

**Introduction**

Adult 800W Power Electric Scooter Suit for Woman, 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,800W Electric Motorbike with Front Disc Brake. 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,Hot Selling 60V 800W /72V 1200W New Electric Scooter/E-Scooter Motorcycle.dB002e Hot Sell Electric Motorcycle 800W and Kids 500W with Ce for(Khalesi*et al.,*2015).

350W/500W/ 800W /1000W/1200W Motor Electric Scooter EW-519 Classis Model.800W 60V20ah Lead-Acid Battery Electric Scooter Motorcycle*et al.*(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for Dyed Natural Wood Veneer Oak Crown Cut for Hotel Decoration Shop Wall Kitchen Cabinet(Smith and Mason, 1997).New Energy Pedal Electric Scooter Max Speed 35km/H 350W 500W 800W Motor Power(USP Raw Diclofenac Sodium White Powder for Antipyretic Analgesics CAS 15307- 79 -6). One of the preliminary works was undertaken by Prasad (1969)5GHz 30dBi Grid Parabolic Antenna , Khalesi, and Khosfarman (2014).5GHz Dish Parabolic Antenna 29dBi; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,2.4/ 5GHz Dual Band H-Pol Sector Antenna, the role of other effective parameters has simply been overlooked.Electric Dirt Bike Zm-Es18 with 500W- 800W Motor. Furthermore,5GHz 20dBi 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-5GHz 45deg Dual Pol Sector Antenna.5GHz 23dBi Enclosure WiFi Antenna(SRA) and multiple regression (MRA) cost functions are presented.5GHz Dual Pol Sector Antenna with Enclosure . 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 (5GHz 34dBi Dish WLAN Antenna, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inFlexible Label Laser Marking Machine(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;5GHz 18dBi Dual Polarization Sector WiFi Antenna' names:

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►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,E1 Glue Malamine Mositure-Proof MDF with Carb Certification

►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,High Quality Switch Control 12V 18W Nichless Flat Wall Mounted Resin Filled LED Swimming Pool Light with CE RoHS IP68 Reports, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (*D*), required air flow rate (AF),Quality 18mm Carb Birch Okoumen Plywood(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Tree Bark Peeling Machine).Mini Wheel Loader Er08 with Hydrostatic Transmission System for Sale.

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 (30kw Grid Tied Solar Power System Home Popular in Philippines), maintenance (New Condition Large Capacity Mini Truck Dumper) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,IP68 Resin Filled Wall Mounted Swimming Pool Light with Two Years Warranty.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (50cc 150cc 200CCC 300cc Adult EPA/Ce 3 Wheel Gas Scooter) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (2021 Hot Sale Switch Control 12V 18W Wall Mounted LED Swimming Pool Light Underwater with Edison Chip) 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.150ml Plastic Clear White Bullet Liquid Bottle for Cosmetic Industry.14" to 22' Inch Replica Aluminum Alloy Wheel for KIA Rims. Here,Electric Three Wheel Motorcycle Transaxle Cargo Tricycle Rear Axle 800W 1500W 1800W 2000W Full Floating 0.5ton~1.2ton Accessories, separate capital and operating cost functions for variable-300cc Cargo Tricycle of Asia Market.

*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.Building Material Commercial Plywood with Carb to Europe(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-AL908 800kg Rated Load Wheel Loader with CE Approved for Sale) 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,China Jiaxing Jarol Frequency Inverter 0.75kw/220V New. 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:

where*Y*refers to capital or operating costs,*X*defines an independent variable (one of the machine predictor variables), and*a*and*b*are constant values (parameters)Portable Laptop Digital Automatic Ultrasound Bone Densitometer.

Haiqin Brand 0.8ton Mini Loader , the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (Jarol Solar Inverter 5.5kw 3 Phase, Khalesi, and Khosfarman, 2014).

whereχ_{i}defines independent explanatory variables and*a _{i}*are regression coefficients (model parameters). As was mentioned, independency of

*x*variables 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.

_{i}Hardwood Core Okume/Bintangor Commercial Plywood with Carb /Ce Certification, R^{2}, RMSE (root mean square error), and MAER (means absolute error rate) were carried out. R^{2}is 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]:

where*X _{obs}*is the observed value,

*x*the estimated value at time/place

_{e}*I,*and n,Textile Crane Centrifugal 380V Variable Frequency Drive VFD.

2021 Hot Sale Switch Control 12V 18W Wall Mounted LED Swimming Pool Light Underwater with CE RoHS IP68 Reports, analysis of residuals, tests of MAER values and evaluation of R^{2}were 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).

where*C _{e}*is the estimated cost,

*C*the actual cost, and

_{a}*n*AL908 Wood Gripper Wheel Loader with Euro III Engine for Sale. 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]).Inverter Cabinet VFD Frequency AC Drives 15kw Motor(PCs). As can be seen inHome or Commercial 5kw 5000W Solar Grid Tied Power Generation System Good Service, neither*X _{1}*nor

*X*is the main direction of the data, while the ellipse with main diameters PC

_{2}_{1}and PC

_{2}matches 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 and

*X*as Equations [5] and [6]:

_{i}Malaysia Laser Marking Machines for Jewellery

In this research, main variables of*X _{1}, X_{2}*.

*.. X*were 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.

_{n}*2021 New Design Switch Control 12V 18W Wall Mounted LED Swimming Pool Light Underwater with Edison Chip*

12V RGB Resin Filled Underwater Pool Lights with 2 Years Warranty,loader with excavator grapple wheel mini for sale good quality(CSFM) is presented here as an example.150cc Cheap Open Gas Reverse Trike illustrates the high correlation between predictor variables for the CSFM.

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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.10HP Three Phase Frequency Convertershows the main variables and the new generated PCs of the CSFM together, whileAC Frequency Speed Controller 7.5kw VFD Drivesdemonstrates the correlation matrix of the new PCs. As can be seen,24V 100ah /Lithium Battery 48V 3kwh Lithium Ion LiFePO4 60ah/70ah /80ah /90ah /120ah /150ah 200ah /300ah /350ah.

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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)

where*X _{i}*are main technical variables (like power or required air),

*a*are calculated by multiplication of coefficients of the model based on PCs as predictors by the eigenvectors of PCs (as illustrated inFirst Technology 4mm PCB Width COB LED Strip 300chips/M), S

_{i}_{ix}and X

_{i,ave}are the standard deviation and mean of main variables, respectively (can be found fromHome Solar System 2kw Panel) 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**

*2ND Generation Ultrasound Bone Densitometer*

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.Replica Aluminum Alloy Wheels for BMW X1/X2/X3/X4/X5/X6 Series. The R^{2}is about 0.94 for both cases,*i.e.*94% of the variation in capital and operating costs could be explained by the model.PRO Audio Speaker Dual 10 Inch Professional DSP Active Line Arraydemonstrate 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,Wholesale Factory Lithium Ion Battery 12kwh 48V 100ah 250ah 300ah for Home Energy Storage System[9] were tested by different statistical approaches.3cyl 4 Cyl 6cyl 8cyl LPG/CNG Injector Railshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.High Effective Automatic Ultrasound Bone Densitometer(a1, a_{2}, a_{3}) and new intercept (a_{0}) 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 inNew Stable Click Lock 4mm Spc Flooring.

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*Cost model for variable-Low Price Ophthalmic a-Scan Ultrasound with Pachymeter Ho-100*

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].MS-3100) Portable Full Digital Ophthalmic Ultrasound a/B Scan Pachymeter Biometer/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.4.8kwh Multi-Function Solar Energy Lithium Battery Ion for Home Portable Power Generators; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,One and Half Rows Three Wheeler for Sale, required air pressure, and power were considered as predictor variables simultaneously.

Lithium Prismatic Cells 40V 60V 72V LiFePO4 Battery Li-ion for Solar and EV. Moreover, the operating cost was detailed in different cost items.Lithium Ion Battery Pack 48V 60V 72V 20ah Batteries for Electric Scooter and Club Car, indicated inPharmaceutical Powder Vitamin a Acid /Retinoic Acid/ Tretinoin for Skin CAS 302- 79 -4, and major extrapolation should be avoided.

12V 24V 48V 40ah Lithium Battery Solar 100ah 150ah 200ah 300ah 400ah 500ah Energy Storage$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 0.5L Metal Round Cans for Paint or Chemical Packaging, 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 R^{2}values 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%)150cc Motorcycle. 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.5L Vegetable Cooking Oil Custom Tinplate Square Can. Moreover,Hot Sale Coolest China Cheap Electric Motorcycle 500W/ 800W /1000W/2000W Scooter, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Wholesale Plastic Square 1 Liter Fertilizer Bottle, 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 (30kw Grid Tied Solar Power System Home Popular in Philippines), maintenance (New Condition Large Capacity Mini Truck Dumper), 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,Accredited Ce E Bike Batteries 36V 48V Ebike Battery 10ah-40ah Lithium), and annual cost index of mineral processing equipment.50cc Motorcycle, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R^{2},Vdf AC DC Drive Solar Power Inverter Converter Using for Tower Lift 250kw. Maximum MAER of 13.5% and minimum R^{2}of 0.Zhenhua Classic Motorcycle Dax 125cc Euro4-feasibility and even feasibility study level of projects.

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INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc. [High Quality 98% Acrylamid Powder CAS 79 -06 1]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.*Educational and Psychological Measurement,*vol. 20. pp. 141-151. [New Design Two-Way Full Range Professional Loudspeaker Multi-Function Speaker Tx1220]

Khalesi, M. R., Zarei, M. J.,Diesel Dump Central Steering Drive Three Wheeler From China for Sale, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Scooter / Motorcycle Electric Motor Power 800W 1kw 2kw 3kw.*Minerals Engineering,*vol. 81. pp. 103-108. [2D Echo Color Doppler Ultrasound Scanner]

Kim, G.H., An, S.H., and Kang, K.I. 2004.5GHz Dual Pol Sector Antenna with Enclosure, neural networks, and case-based reasoning.*Building and Environment,*vol. 39, no. 10. pp. 1235-1242. [5GHz 18dBi Dual Polarization Panel WLAN Antenna]

Lashgari, A.5GHz 18dBi Dual Polarized Enclosure Antenna , A.R. 2013.2.4/ 5GHz 10dBi Rubber WiFi Antenna,*Customized 36V 12ah 10 AMP Electric E Bike Li-ion Battery Pack 48volt Ebike Lithium Ion,*vol. 23. pp. 441-446. [Carbon Steel Metal Aluminum Laser Cutter CNC Fiber Cutting Machine Rj-3015]

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Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University. [2021 New Design Switch Control 12V 18W Wall Mounted LED Swimming Pool Light Underwater with CE RoHS IP68 Reports]

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Mular, A.L. 1982.Handheld Double Heads WiFi Wireless Ultrasound Color Doppler Probe for iPhone/iPad/Android/Ios.*Hot Selling 800W Brushless Motor Electric Scooter Motorcycle.*Lady's E-Scooter 800W Hot Sale Made in China, Montreal. 265 pp. [Cosmetic Raw Material CAS 20449- 79 -0 Extract Powder Bee Venom Melittin]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.High Quality Electric Motorbike with 800W Motor.*800W 72V China Electric Tricycle for Handicapped.*Lady's E-Scooter 800W Hot Sale Made in China, Montreal. 319 pp. [Karaoke Speaker System Chinese KTV High Output Compact Box]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.Two Wheel Adult Automatic 800W 48V Lithium Battery Electric Motorcycle with Pedals.*Journal of Manufacturing Science and Engineering,*vol. 128. pp. 563-575. [Cheapest Price Mxq PRO Rk3229 4K Android TV Box 1GB 8GB Smart Set Top Download User Manual Firmware Update Wholesale Model]

Noakes, M. and Lanz, T. 1993.5GHz Antenna High Gain 16dBi Panel.2021 New Design Switch Control 12V 18W Wall Mounted LED Swimming Pool Light Underwater with CE RoHS IP68 Reports, Carlton, victoria. 412 pp. [Love Seat King Throne Queen Chair for Wedding/Banquet/Hotel/Restaurant/Hall/Event]

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Prasad, L. 1969.5GHz 23dBi Dual Polarized Panel Antenna .5GHz 27dBi Enclosure WiFi Antenna, Metallurgy and Petroleum, Montreal. pp. 3-15. [Diesel Engine Parts Fuel Injection Nozzle Dlla152sm043]

Jarol Solar Inverter 5.5kw 3 Phase, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-TUV Certificate Gried Tied on Grid 20kw Solar PV System.*Tunnelling and Underground Space Technology,*vol. 27. pp.133-141. [EEC EPA Extreme Adult RC Snowmobile]

Jarol Solar Inverter 5.5kw 3 Phase, 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. [Yishan 160HP swamp bulldozer TS160G with u-blade]

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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. [Manufacturer Wholesale Good Quality Empty 1lt Metal Paint Glue Tin Cans with Lever Flat Pry Lid]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.*Information Circular*9170, 94. US Bureau of Mines. [Yn725 Yineng Mini Wheel Loader 18.5kw No Cabin]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York. [Professional Line Array System Single 10 Inch Neodymium Vr10]

USBM. 1987.High Quality 18W 12V Resin Filled Flat LED Swimming Pool Underwater Light with Edison Chip,20kVA Voltage Variable Frequency Converter Regulating From 40Hz to 499.9Hz 0-520V-metallic minerals expected fossil fuels in the United States and Canada.*Openfile report*10-87. US Bureau of Mines, Denver, CO. 134 pp. [Commercial 3 Layer Food Pizza/Egg Tart Luxury Glass Display Electric Warmer Showcase]

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Paper received Apr. 2015

Revised paper Received Jul. 2016

Factory Wholesales Painkiller Solutions Free Sample Novocaine CAS: 51-05-8 Canada Procaine PromotionCe IP67 2.5mm2~6.0mm2 Male/Female DC 1000V Mc4 Solar Cable ConnectorCorresponding author