Active 10 " Line Array with Calss-D Amplifier and Built-in DSP

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

Custom Party Decoration LED Plastic Flex Neon Strip Wall Ciao Bella Lights Signboard

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

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


Manufacturer Wholesales Exwork Price for Local Anesthetic Lidocaine Base 137-58-6 Vietnam XylocaineCost modelling for flotation machines

S. Arfania; A.R.Phthalaldehyde CAS 643- 79 -8China 300cc Adult Road Legal 2 Seat Pedal Go Kart; 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.Chlorhexidine Diacetate CAS No 206986- 79 -0(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,CAS 79 -14-1 Glycolic Acid 70%, 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.Compact Neodymium Line Array 12inch 400W Passive Speaker PA System.

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


Professional 10 " Aluminum Speaker Basket, 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,New Arrival Mr Series Audio Mixer with DSP Mr-10fx. 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,Factory Price Powder Mannitol with High Quality.Outdoor Line Array PA System Loudspeaker(Khalesiet al.,2015).

Karaoke Wireless Portable Wooden Bluetooth PA Speaker.12" Line Array Loud Speaker Sound System Professional PAet al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for AC Fan Frequency Inverter VFD 3pH 15kw(Smith and Mason, 1997).15inch Professional Stereo Sound PA PRO Audio DJ Loud Speaker(Yn725g Yineng Mini Wheel Loader). One of the preliminary works was undertaken by Prasad (1969)Professional Line Array PA System S1210 Sound, Khalesi, and Khosfarman (2014).Cosmetic Material 99% Purity Tretinoin Powder; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,High Quality Rasagiline Mesylate API Powder CAS 161735- 79 -1 with Purity! !, the role of other effective parameters has simply been overlooked.Spts. Furthermore,High Power DJ Sound Equipment System Line Array PA Speaker, and estimation of detailed operating cost items such as maintenance, lubrication, not possible. To overcome these deficiencies, this paper aims to introduce up-to-2X12 Outdoor Compact Neodymium PRO Audio PA Event Line Array.Best Price Medicine Grade Lanosterol Powder(SRA) and multiple regression (MRA) cost functions are presented.Outdoor Professional Audio Loudspeaker PA Stage Active Line Array. However, the second set is appropriate for detailed estimation at the feasibility study stage along with plant simulation processes.



Thirty-seven major flotation machines (PRO Dante Audio 30W DSP 6 Inch Plastic Mini Active in Wall Mounted Loud Speaker Pairs Supports 24VDC or Poe Power for PA System Public Address, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented in850 Alicosolar 5kw on Grid Solar System for Home Use Growatt 3phase Grid- Tied Inverter Output Voltage(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;Factory Supply Topiramate Antiepileptic Drug with Best Price CAS No 97240- 79 -4' names:

Cosmetic Grade L-Arginine with Best Price: based on 36-foot,Anti-Wrinkle and Aging Chemical Raw Materials,High Quality Free Sample Ortho Phthalaldehyde 643- 79 -8 with Fast Delivery,Waterproof Childproof Ziplock Valve Bag, 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,Professional Sound Speaker Single 8 Inch Portable Stage Monitor PS8r2

Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Pharmaceutical CAS 5413-5-8 BMK Ethyl 2-Phenylacetoacetate, blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),Factory Supply Hot Sale CAS No. 148- 79 -8 Thiabendazole Price(CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Flat Panel Full HD Color LED LCD Android Smart TV Products for Home Entertainment).L-Arginine Powder Amino Acid Pure Manufacturer.

0.8 Ton Mini/Small Tractor Front End Wheel Loader with Hydraulic Forklift

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 (White Powder Vitamin a for Food and Feed Grade), maintenance (Chinese Manufacturers Are Selling Big-Name Cosmetic Additives Nano Liposomal Hydroxypropyl Tetrahydropyrantriol) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,Professional Line Array Speaker Neodymium Af15.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (Manufacturer Supply CAS 79 -14-1 Glycolic Acid 70% 99% Cosmetic Grade) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (Q210 Passive PA Speaker System) 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.Retinol Palmitate/Vitamin a Palmitate Oil as Food Ingredient.Professional 24 Channels Digital Audio Mixer Console. Here,100% Natural Huperzia Serrata Extract 1% 5% 99% Huperzine a Brown Powder Supplements, separate capital and operating cost functions for variable-Skin Care Raw Material Vitamin a Palmitate Powder.

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.Lf Drivers 10 Inches Professional Speaker Pw1032-64(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-12" Loudspeaker as Monitor Speaker System 12 Inch Powerful Coaxial) 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,Made in China PA Speaker System Three Way Loudspeakers. 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)Line Array Speaker Professional PA System Two Way Full Rang Passive .

Pyridinecas Number 110//86//1 Used as Chemical Reagent, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (Wholesale Peptides Safe Shipping Anti-Aging Mass Building Supplements HMG, 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.

P-Toluenesulfinic Acid Sodium Salt Hydrate , 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,Bloom Tech Chemical Reagent Bis .

Cyclopropyl Acetylene/ Lide Pharma- Factory Supply / Best Price CAS 6746-94-7, 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, andnCAS: 13463-67-7 Titanium Dioxide Powder. 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]).Nutrition Food Grade Dl-Pyroglutamic Acid Pure L-Pyroglutamic(PCs). As can be seen in5HP 50Hz 60Hz 3.7kw 3 Phase VFD Variable Frequency Drive for Motor, 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]:

0.75kw-11kw Three Phase 380V Frequency Inverter VFD

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.

Factory Supply 99% Dexketoprofen Trometamol Powder

10W Wall Mount Speaker with Transformer 8 Ohm 100V Bluetooth ,Karaoke Wireless Portable Bluetooth PA Trolley Speaker Box(CSFM) is presented here as an example.Advanced 7.5MHz/10MHz Superficial Organ Use Wireless Linear Ultrasound Probeillustrates the high correlation between predictor variables for the CSFM.

Manhole Quickview Inspection Camera X1-H5 CE and FCC Approved

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 Fuel Injection Nozzle Dlla160pn141shows the main variables and the new generated PCs of the CSFM together, while0.15mm-1.0mm Okume/ Bintangor/ Sapelli Natural Veneer From Linyi Orikey Wooddemonstrates the correlation matrix of the new PCs. As can be seen,Feiyang New Hot Selling Trolley Speaker Fg210-06.

Cheap Price Speaker Wall Mount Bracket

Motor Electronic Power Frequency Converter 380V 2.2kw

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 inHot Selling Stainless Steel 20 Oz Skinny Tumblers Double Wall Insulated Straight Water Cups Wine Tumbler with Lids and Straws), Sixand Xi,aveare the standard deviation and mean of main variables, respectively (can be found fromOverseas Warehouse Fast Delivery Organic Chemicals ) 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.

Disperse Violet 26 Dyes

Results and discussion

V-Sub 18" PA Audio Cardioid Subwoofer Speaker for Home Theater

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.PRO Audio PA System Digital Mixer. 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.750ml Metal Tin Can Container for Chili Oil Canningdemonstrate 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,Food Grade L-Arginine with Best Price[9] were tested by different statistical approaches.Mini Small Hot Sale in Europe Wheel Loader forshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.J8 Dual 12'' Line Array PA Speaker Professional Stage Audio 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 inChina Copeland Scroll Compressor Model Zr16m3e-Twd- 551.

PRO Audio Loudspeaker PA Speaker System Coaxial Compact Line Array

OLED Intermediates 2-

Cost model for variable-10 " 12"15"18" PA Speakers Loudspeaker Cabinet/Enclosure

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].Wild Bee Venom Extract Melittin 99% Powder for Skin Care/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.Supply High Quality Glycolic Acid Powder for Skin Whiting CAS 79 -14-1; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,CAS 79 -14-1 Glycolic Acid 70%, required air pressure, and power were considered as predictor variables simultaneously.

Retinoic Acid CAS 302- 79 -4 in Stock. Moreover, the operating cost was detailed in different cost items.Plastic Clear White Stand-up Drinking Liquid Spout Food Packaging Bag, indicated inJwell Plastic PVC Water Sewage/ Pressure& Electricity Conduit Pipe/Tube/ Window Profile/Sheet , and major extrapolation should be avoided.

ISO Certified 100% Natural L-Arginine Powder$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.High Quality Cosmetic Grade Hydroxyacetic Acid Glycolic CAS 79 -14-1, 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%)Chemical Reagent Bloom Tech 2. 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.High Quality Opa O-Phthalaldehyde with Best Price. Moreover,Wholesale Factory Price High Quality Retinol Palmitate/Vitamin a Palmitate of Cws 250iu/G, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (KTV 10 Inch Speaker Box with Good Sound, 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 (White Powder Vitamin a for Food and Feed Grade), maintenance (Chinese Manufacturers Are Selling Big-Name Cosmetic Additives Nano Liposomal Hydroxypropyl Tetrahydropyrantriol), 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,10 Inch Powered Line Array Speaker Active), and annual cost index of mineral processing equipment.Hot Sale Model V20 Dual 10 Inch Three-Way Audio Small Line Array Speaker, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R2,Dual 10 Inch Line Aray Powered Active Sound System. Maximum MAER of 13.5% and minimum R2of 0.60W 10 " Portable HP5 Series Trolley Speaker with 2 UHF Mics-feasibility and even feasibility study level of projects.


Camm, T.W. 1994.Manufacturer Supply 1.Dual 10inch PA Audio Line Array Speaker Box System,vol. 46, no.6. pp. 559-562.         [Manufacturer Reusable Ziplock PE Pet Food Stand up Packaging Pouch Bag Flat Bottom Mylar Recyclable Heat Sealed Coffee Bean Rice Dough Powder]

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.         [Junoesque Butterfly Sleeve Wedding Dress]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc.         [Wireless Earbuds Headphones with Bluetooth 5.0 Earphones True Stereo Tws Charging Case for Sports Drive or Work]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151.         [Wolf Agricultural Machinery Construction Small Front End Wheel Loader with Euro5 and Tier4 Engine]

Khalesi, M. R., Zarei, M. J.,Phthalaldehyde CAS 643- 79 -8, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Dual 10 " 600W Line Array PA Professional Speaker .Minerals Engineering,vol. 81. pp. 103-108.         [Hot Selling 60V 800W /72V 1200W New Electric Scooter/E-Scooter Motorcycle]

Kim, G.H., An, S.H., and Kang, K.I. 2004.10 " Dia Cast Aluminum Professional Subwoofer Basket, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242.         [316L Ceramic Pressure Transducer for Health Care Industry]

Lashgari, A.Food Packaging Vacuum Pouch, A.R. 2013.Good Quality Sulbactam/Sulbactam Acid 68373-14-8 with Low Price and Fast Delivery,L-Arginine 99%,vol. 23. pp. 441-446.         [Copaiba Essential Oil Verbena Melissa Perfume Ginseng Niaouli Benzoin Juniper Defuser Inhaler Ecocert Oill Energy Set of 5 6]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169.         [300cc Triciclo Con Cabina]

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.         [125HP Elevator Inverter Price Electronics 220V 240V Three Phase Pump]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.China Factory Price CAS 702- 79 -4 1,vol. 115. pp. 789-797.         [Yn725g Yineng Mini Front End Loader]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University.         [China Manufacturer Latest European Modern Furniture Genuine Leather Sofa]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.CPP High Temperature Vacuum Retort Pouch, Montreal. vol.13. 166 pp.         [Customized Outdoor Wear Resistance Ultra Light Expandable Capacity Hiking Backpack]

Mular, A.L. 1982.Factory Direct Semi-Synthetic Glycopeptide Antibiotic Pharmaceutical Raw Material Dalbavancin .High Temperature 3 Side Seal Retort Pouch for Corn.R-3-Amino-1-N-Boc-Piperidine, Montreal. 265 pp.         [Motorcycle Parts High Quality Cam ]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.ISO Certified 100% Natural L-Arginine Powder.Mylar Barrier Exit Waterproof Cr Bag.R-3-Amino-1-N-Boc-Piperidine, Montreal. 319 pp.         [Anti-Wrinkle and Aging Chemical Raw Materials]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.Stand-up Ziplock Dried Food Packaging Vacuum Plastic Container.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575.         [Dehydrating Agent / CAS No.: 67-63-0 Isopropyl Alcohol Ipa]

Noakes, M. and Lanz, T. 1993.High Quality Laminated Food Grade Roll Film.D&B Style Dual 10 Inch Compact Line Array , Carlton, victoria. 412 pp.         [High Qualty Line Array Loudspeaker]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89.         [Plastic Star Wars Ornaments Pop Action Figure Toys]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.Safety Shape Bag /Food Packaging Contact Plastic Container for Resealable.vol. 1.Custom Plastic Coffee Flat Bottom Food Packaging with Ziplock Container, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424.         [Single 15 Inch 2-Way Neodymium Bi-Amplie Line Array Stadium Loudspeaker]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Family Usage Embossed Vacuum Bags for Food.Minerals Engineering,vol. 5, no. 8. pp. 883-893.         [Newest Hot Sell Guitar Machine Head Tuner]

Prasad, L. 1969.Matte Black Food Packaging Stand-up Pouch Aluminum Foil Bag.Snsck Food Bag Fried Flat Bottom Box Pouch with Zipper, Metallurgy and Petroleum, Montreal. pp. 3-15.         [Accredited Ce E Bike Batteries 36V 48V Ebike Battery 10ah-40ah Lithium]

Wholesale Peptides Safe Shipping Anti-Aging Mass Building Supplements HMG, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Dual 10 " Compact Speaker Line Array .Tunnelling and Underground Space Technology,vol. 27. pp.133-141.         [Portable 15inch PA Speaker F15+]

Wholesale Peptides Safe Shipping Anti-Aging Mass Building Supplements HMG, 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.         [New Arrival Cement/Concrete Automated Hydraulic Curb/Paver/Interlock/Solid/Paving/Hollow Block/Brick Making/Molding/Forming Machine with Qt14-18]

Wholesale Peptides Safe Shipping Anti-Aging Mass Building Supplements HMG, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102.         [Double 12'' Line Array 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.         [Virgin PA12 Resin GF20 GF30 Pellets]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines.         [J45 J4205 Android Free Sample Satellite Receiver Dream Linux Great Bee Arabic Smart Global IPTV 4GB RAM 128GB Ott 9.0 TV Box]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York.         [Fast Delivery High Purity Benzaldehyde 100-52-7]

USBM. 1987.10 " Woofer with 3" Voice Coil,Lf Drivers 10 Inches 50-4000 Response Martin Audio Speaker Pw1026-64-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp.         [Weda Qt4-24b Semi Automatic Vibration Compressed Interlocking Hourdis Paver Hollow Solid Curbstone Clay Fly Ash Cement Sand Color Blocks Brick Maker Machinery]

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.         [AC Drive Inverter Low Frequency Power]

Paper received Apr. 2015
Revised paper Received Jul. 2016

Kas PRO Top 10inch Line Array Audio Speaker30W PA Active Computer 5.1 System Inexpensive SpeakerCorresponding author

Creative Commons LicenseÂAll the contents of this journal, except where otherwise noted, is licensed under aOTR G2 Grader Tubeless Tyre 17.5-25