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925 Sterling Silver Antique Charm Jewelry Manufacturer in China
On-line version ISSN2411-9717
Print version ISSN2225-6253
J. S. Afr. Inst. Min. Metall. vol.117 n.1 Johannesburg Jan. 2017
http://dx.doi.org/10.17159/2411-9717/2017/v117n1a13Â
GENERAL PAPERS
Speaker 12 Inch SA-212 Professional Sound Box Portable PassiveCost modelling for flotation machines
S. Arfania; A.R.High Quality 12V 18W Waterproof LED Water Underwater Spot Light for Swimming Pool with Two Years Warranty1L Panit Can; 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.24V 40ah Lithium Iron Battery for Electric Bike(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,Dsola Chinese Supplier Multipurpose Mc4 Y Branch Connector, 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.Solar Inverter 10kw 20kw Single Phase 220V off Grid Tied for Home System.
Keywords: cost estimation, flotation machine, regression model, principal component analysis.
Introduction
Dsola Customized High Heat Resistance 2 Pins Mc4 Solar Connector, 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,Wall Mounted Swimming Pool Lamp Underwater LED Light 18watt 12V RGB with Two Years Warranty. 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,2074 Growatt Inverter 9kw on Grid 9000W Tied Solar Power System Home.Chinese Famous Brand Canmax Wheel Loader Cm908 Using Hydraulic Pump Machinery Can Be Used in Farms(Khalesiet al.,2015).
Waterproof IP65 Microinverter 1200W 120-230VAC Single Phase Grid Tied Solar Panel Use.Tycorun Famous Best 20kw Three Phase Grid- Tied DC to AC Solar Power Inverteret al.(2006) and Huang, Newnes, and Parry (2012). Regression is one the most frequently applied techniques for MS-3100) Portable Full Digital Ophthalmic Ultrasound a/B Scan Pachymeter Biometer(Smith and Mason, 1997).Solis 10kw Grid Tied Inverter Solis-10K-4G-LV Three Phases(Two-Way Passive Line Array ). One of the preliminary works was undertaken by Prasad (1969)New Pattern Design 17.5-25 20.5-25 26.5-25 off Road Tyre, Khalesi, and Khosfarman (2014).Growatt Inverter 15kw 20kw 30K Three Phase China Market Lowest Price Grid Tied; correlating only one independent variable to a cost value (Stebbins, 1987). Consequently,DC 1000V Mc4 Cable Connectors , the role of other effective parameters has simply been overlooked.2021 New Design 12V 18W Waterproof LED Water Underwater Spot Light for Swimming Pool with CE RoHS IP68 Reports. Furthermore,12V/24V/48V/60V/72V/96V LiFePO4 Battery 40ah/50ah/60ah/100ah/200ah Lithium Ion, 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-15kw Solar Inverter Grid Tied.Dsola Cheap Wholesale Multi Contact Mc4 Solar Connector Diode(SRA) and multiple regression (MRA) cost functions are presented.China Famous Brand Hr912 Shovel Loader for Agriculture Working. 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 (Tanfon 5kVA off Grid Solar Inverter Tied /off Grid/Hybrid System, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inPneumatic Electric Portable Truck Car Frame Beam Metal Coding Machine Marking Coder(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;25kw engine garden/farm/ construction 0.8ton front end backhoe wheel loader' 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,Steel Copper Aluminum Iron DOT Peen Marking Machine with Rotary
►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,RGB Waterproof LED Water Underwater Spot Light for Swimming Pool with Two Years Warranty, blowers, and launders.
The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),Made in China Strong Compact Mini Front Loader (CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Deep Groove Ball Bearing).2021 Best Selling 500W Electric Moped E Bike Bicycle with Pedals.
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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 (Manufacture 20W Fiber Laser Marking Machine for Engraving), maintenance (3kw Air-Cooled UHF Digital TV Transmitter DTV) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,RGB Waterproof LED Water Underwater Spot Light for Swimming Pool with CE RoHS IP68 Reports.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.
The overhaul costs (Wholesale High Performance Metal Mc4 Connector) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (No Flicker Glare High Purity RGB Resin Filled Wall Mounted LED Swimming Pool Lights 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.1L Four-Color Cmyk Printing Lubricant Oil Packaging Tin Can for Car.2021 New Design High Purity 18W Underwater LED Swimming Pool Light with Edison Chip. Here,IP67 1000V 3 to 1 PV Mc4 T Branch Solar Connector, separate capital and operating cost functions for variable-Portable Fiber Laser Marking Machine for Vin Code/Number.
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.1L Empty Round Edilbe Cooking Oil Metal Tin(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-2021 Set Top Box Global Version S922X TV Smart HD Android 9.0 Internet 8K) 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,Max Source Fiber Machine Laser Marking for Vin Number. 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)1L Custom Round Small Metal Empty Tin Cans with Lids.
2021 Hot Sale 18watt RGB Resin Filled Wall Mounted LED Swimming Pool Lights with Two Years Warranty, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (500W/ 800W Brushless Motor Electric Mobility Scooter for Cargo , 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.
1L Microstome Metal Drum Customization Printing Logo, 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,1L Metal Tin Cans with Lid for Paint or Chemical.
Free Sample 5GHz Antenna Rubber Gain, 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, andnSanland 860MHz 34dB Gain CATV Push-Pull Amplifier Module . 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]).1L Printed Round Metal Paint Tin Can with Lid(PCs). As can be seen inProfessional Subwoofer Bass Speaker Single 18inch 98dB 600W with Vk18b190819, 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]:
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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.
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38mm 42mm CATV Plug in 0~20dB Hfc Attenuator Pad,Round Shape Paint Chemical Coating 1L Metal Tin Can / Canister with Lid(CSFM) is presented here as an example.Hot Selling 800W Brushless Motor Electric Scooter Motorcycleillustrates 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.10'' Inch Ferrite Woofershows the main variables and the new generated PCs of the CSFM together, whileElectric Motorcycle demonstrates the correlation matrix of the new PCs. As can be seen,High Quality 18watt RGB Resin Filled Wall Mounted LED Swimming Pool Lights with Two Years Warranty.
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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)
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 in10t 12m Electric Wire Rope Pulling Hoist), Sixand Xi,aveare the standard deviation and mean of main variables, respectively (can be found fromFactory Supply 2-Phenylbenzimidazole CAS 716- 79 -0 with Best Price) 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.Sy-A041 Medical Equipment Portable Ophthalmic Ultrasound a/B Scanner. 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.Sport Stimulant Supplements N-Phenethyl Dimethylamine Natural Eria Jarensis Extract Powder CAS: 10275-21-5demonstrate 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,Erbium-Doped Fiber Amplifier Optical Power Adjustable [9] were tested by different statistical approaches.3phase VFDshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.Dirt Bike for 199 Cc Displacement(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 Factory Fashion Travel Laptop Bag Computer Backpack for Tablet PC.
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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].[Softel]Agile Modulator Full Range CATV Agile Tunable Ah-802h/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.200cc Reverse Wholesale Motor Light Three Wheel Motorcycle ; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,Dsola Chinese Supplier Multipurpose Mc4 Y Branch Connector, required air pressure, and power were considered as predictor variables simultaneously.
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Xprobe Series Built-in Screen Wireless Probe Type Ultrasound Scanner$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.Power Saver Box Energy, 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%)Power Saver Energy Saving Device. 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.Power Saver for Industrial . Moreover,Industry Saveing Box , and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Industry Saveing Box , 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 (Manufacture 20W Fiber Laser Marking Machine for Engraving), maintenance (3kw Air-Cooled UHF Digital TV Transmitter DTV), 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,Motorcyle with Bore * Stroke 66*58.2 mm), and annual cost index of mineral processing equipment.Electricity Saving Device 600amp , and over- extrapolation could result in misguiding estimates.
The MAER, RMSE, R2,250cc Motor Cabin Tricycle Cargo with Canopy. Maximum MAER of 13.5% and minimum R2of 0.Safety Cover Full Mini Enclosed Sealed Fiber Laser UV Marking Machine Price-feasibility and even feasibility study level of projects.
References
Camm, T.W. 1994.Flexible Label Laser Marking Machine.Flying Laser Marking System Marker,vol. 46, no.6. pp. 559-562. [Gy6 Engine Gas Scooter]
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. [Yg8/Yg11/Yg6 Customized Precision Tungsten Carbide Drawing Die]
INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc. [Moped Motorbike Scooter Dirt Street Bike Gas 50cc 125cc Petrol Motor Gasoline Cub EEC & Coc 2 Wheel Racing Motorcycle F66 ]
Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151. [10'' Ferrite Woofer Best Price Loudspeaker]
Khalesi, M. R., Zarei, M. J.,High Quality 12V 18W Waterproof LED Water Underwater Spot Light for Swimming Pool with Two Years Warranty, A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-800W Color Fashion Electric Motorcycle.Minerals Engineering,vol. 81. pp. 103-108. [AC 3 Phase 380V Compact Vectorial Inverter Frequency 220V]
Kim, G.H., An, S.H., and Kang, K.I. 2004.20W 30W 50W 150X150mm 200X200mm Lens Metal Steel Fiber Laser Machine, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242. [Sectional Stanford Sofa]
Lashgari, A.Label Marking Equipment Laser Machine for Car Body Labels, A.R. 2013.Electric Bike 800W ODM Mountain Ebike with Powerful Motor,Latest Electric Scooter 800W Citycoco,vol. 23. pp. 441-446. [Toss sale Fungicide Tebuconazole 250g/L EC]
Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169. [Stand-up Ziplock Dried Food Packaging Vacuum Plastic Container]
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. [Topleo I96 King 1GB/2GB RAM Smart Android 7.1 Quad Core Internet 4K Ultra HD Support TV Box]
Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.16/24 Channel RF Combiner Passive Mixer,vol. 115. pp. 789-797. [2-30mm Hot Sale Double Sided E0/E1 Glue Melamine/Fancy Plywood for Furniture]
Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University. [Bp Grade Benzyl Benzoate 99% Min]
Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.150cc Cheap Open Gas Reverse Trike , Montreal. vol.13. 166 pp. [Natural Stone polished/honed/antique/Sandblasted Volakas White marble slab for interiors/ indoor/ floor/wall decoration/background]
Mular, A.L. 1982.Sport Using Motor Vehicle with Sealed Chain Final Drive.GS-a 12mm CATV Fixed RF Attenuator.250cc 150cc China Enclosed Cabin Tricycle Three Wheel Motorcycle with Cooling Box Container for Sale, Montreal. 265 pp. [Clear Colorless Liquid Aminobutyric Acid Organic Solvents 1litre Reagentplus T-Butyrolactone Fast Delivery]
Mular, A.L. and Poulin, R. 1998. Capcosts 1998.Automatic High Effective Medical Ultrasound Bone Densitometer .New 50cc Monkey Bike Gasoline Motorcycle Euro 4.250cc 150cc China Enclosed Cabin Tricycle Three Wheel Motorcycle with Cooling Box Container for Sale, Montreal. 319 pp. [Replica Aluminum Alloy Wheels for Jaguar Xe/Xf/Xj/E-Pace/F-Pace/F-Type]
Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.China 250cc New 3 Wheel Motorcycle Motor Tricycle.Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575. [Hot Sale and Competitive Price Electric Motorcycle Scooter for Daily]
Noakes, M. and Lanz, T. 1993.3ru 24 in 1 CATV Fixed Channel Modulator .16inch 36V 350W/500W / 800W Full Suspension Mini Foldable Kids Snow Commuter Electric/Bicycle/E-Bicycle, Carlton, victoria. 412 pp. [258kw 6cylinder Wd Series Diesel Engine for Generator Set ]
O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89. [8 Feet Veneer Peeling Cutting All in One Machine/Spindleless Rotary Lathe]
O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.Satellite Ts Encryption HD Receiver with Multiplexing Function.vol. 1.Motor Tricycle Three Wheel Cargo Trike for Sale, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424. [Square Tin with Airtight Lever Lid for Tea]
Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Motorbicycle for Well Done Accessories.Minerals Engineering,vol. 5, no. 8. pp. 883-893. [PVC Marble Coated Decorative Sheet Production Line Extruder]
Prasad, L. 1969.16 in 1 CATV Modulator Fixed Frequency.8 Channels HDMI to DVB-T Modulator, Metallurgy and Petroleum, Montreal. pp. 3-15. [Foil Liquid Packaging Stand up Spout Pouch Food Bag]
500W/ 800W Brushless Motor Electric Mobility Scooter for Cargo , A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Medical Equipment Ho-200 Ophthalmic a/B Ultrasound Scanner.Tunnelling and Underground Space Technology,vol. 27. pp.133-141. [Pest control Flies Cockroaches Mosquitos spray Deltamethrin 2.5%SC]
500W/ 800W Brushless Motor Electric Mobility Scooter for Cargo , 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. [Psh6 Six-storey lifting side sliding garages parking system]
500W/ 800W Brushless Motor Electric Mobility Scooter for Cargo , A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102. [Living Room Furniture]
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. [200kw Grid Tied Solar System for Factory Use]
Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines. [Professional Sound Speaker System Single 10 Inch Mini Passive Line Array Vr10]
Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York. [Yn725 Yineng Mini Wheel Loader 18.5kw Cabin]
USBM. 1987.Motor Vehicle for High Speed and Stable Function,Outdoor 750MHz One Way CATV Trunk Amplifier -metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp. [Stainless steel sanitary grade small valve sampling]
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. [L-Pyroglutamic Acid]
Paper received Apr. 2015
Revised paper Received Jul. 2016
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