Open Access. Powered by Scholars. Published by Universities.®

Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

2019

Journal

Discipline
Institution
Keyword
Publication

Articles 1 - 30 of 630

Full-Text Articles in Engineering

About Time: Visualizing Time At Burning Man, Gordon D. Hoople, Austin Choi-Fitzpatrick, Nathaniel Parde, Diane Hoffoss, Max Mellette, Rachel Nishimura, Virginia Gutman Dec 2019

About Time: Visualizing Time At Burning Man, Gordon D. Hoople, Austin Choi-Fitzpatrick, Nathaniel Parde, Diane Hoffoss, Max Mellette, Rachel Nishimura, Virginia Gutman

The STEAM Journal

About Time was a 30 foot long, 3000 pound wooden sundial that went up in flames at Burning Man 2019. The piece reflected on the role time plays in our lives. We organize our lives around time—are enslaved to time—and yet we know so little about it. Physicists and philosophers continue to grapple with deep puzzles of time—Is time a fundamental quantity, independent of human actions or observations or is it an emergent property of our perception? This installation projected time using two sundials: a horizontal dial which swept time out across the desert floor and ...


Indonesia Natural Mineral For Heavy Metal Adsorption: A Review, Grandprix T. M. Kadja, Moh Mualliful Ilmi Dec 2019

Indonesia Natural Mineral For Heavy Metal Adsorption: A Review, Grandprix T. M. Kadja, Moh Mualliful Ilmi

Journal of Environmental Science and Sustainable Development

Indonesia has abundant mineral resources used as natural adsorbent materials for the absorption of heavy metal. Among these are natural zeolites, clay, and ashes. These natural materials showed high performance adsorption capacity with respects to their low cost and high availability. Several research reports had been published for studying the performance of the natural materials as adsorbent of several heavy metals i.e., Hg, Pb, Fe, Cd, Cr, Zn, Ni, and Cu by examining the effect of various factors, including pH, contact time, initial concentration, temperature, and dosage. Furthermore, to determine the adsorption rate, mechanism, and efficiency of natural materials ...


Designing The Structure Of Costume Fabrics According To The Fabric Thickness, N.B. Yusupova, S.A. Xamrayeva, H.T. Ashurov Dec 2019

Designing The Structure Of Costume Fabrics According To The Fabric Thickness, N.B. Yusupova, S.A. Xamrayeva, H.T. Ashurov

Textile Journal of Uzbekistan

The thickness of material mainly depends on the fabric phase consnruction, the linear count of thread, the number of thread in 10 sm and yarn of it. To initiate the technology of sewing fabrics process, closing design and especially in evaluation heatproof properties of the fabric in winter and autmn assortiments. The thicrness of fabric possess a great importance. The thickness of the fabric as a result of studies conducted in fabric thicness and density of the yarns can not be at the expense of significant size. To achieve this goal is the purpose of the use of interlace complex ...


Determination Of Friction Coefficients Of Seed On Steel And On A Seed Roller, M.X. Axmedov, T.O. Tuychiyev, A.A. Ismoilov, R.Sh. Sulaymanov Dec 2019

Determination Of Friction Coefficients Of Seed On Steel And On A Seed Roller, M.X. Axmedov, T.O. Tuychiyev, A.A. Ismoilov, R.Sh. Sulaymanov

Textile Journal of Uzbekistan

The lintering process is one of the most expensive processes in a ginnery. Many theoretical and practical studies have been carried out to improve the lintering machines, in which the main focus was on improving the productivity of the machines and the quality of seeds and lint obtained by improving the working mechanisms and working bodies of the machine. The article addresses the issues of determining the coefficients of friction of rolling seeds on steel and on the seed roller. The dependence of the operation of the linter on the angle between the seed roller and the apron of the ...


Study Of The Law Of Motion Of A Single Seed On The Rib, B.M. Mardonov, F.X. Ibragimov, X.T. Axmedxodjayev, X.N. Sharipov, Sh.S. Xoldorov Dec 2019

Study Of The Law Of Motion Of A Single Seed On The Rib, B.M. Mardonov, F.X. Ibragimov, X.T. Axmedxodjayev, X.N. Sharipov, Sh.S. Xoldorov

Textile Journal of Uzbekistan

The article studies the applied and theoretical studies of the shapes of ribs used in the process of removing seeds in a sawing gin machine, which differ from the existing ones consisting of concave, convex and rectilinear contours, as well as the processes of removing seeds with their use. Schemes of the movement of seeds along the concave and convex contours of the geometric image of the grid-iron contour in the plane are given. The contours of the grid-irons were determined, the coordinates of point C(x13, y13). The changes in the speed of movement of seeds in time for ...


Study Of Cotton-Raw Storage Process, A. Salimov, A.A. Ismailov, O.A. Salimov Dec 2019

Study Of Cotton-Raw Storage Process, A. Salimov, A.A. Ismailov, O.A. Salimov

Textile Journal of Uzbekistan

Cotton harvesting stations accept, ans keep store cotton. Warehoused cotton in storages has certain physical and mechanical properties and is an independent system with thermal, humidity, weed and other parameters. The reasons for the deterioration of the quality of cotton storage include the imperfection of modern storage methods, as well as the difficulty of controlling the change in the state of cotton in a riot or warehouse, due to the cumbersome riot sites, storage facilities, significant quantities of stored cotton. In the study of the state of cotton in riots during its storage, of particular interest is the creation of ...


Use Of Local Components For Sizing Bases, S.E. Mardonov, S.A. Xamrayeva, F.R. Taniberdiyev Dec 2019

Use Of Local Components For Sizing Bases, S.E. Mardonov, S.A. Xamrayeva, F.R. Taniberdiyev

Textile Journal of Uzbekistan

The article will justify dressing materials, which is used to increase the strength of warp threads in the manufacture of fabric and on the preparation of dressing penetrating into the threads, forming a smooth film in the surface of the threads, in the subsequent process, i.e. during weaving, reducing thread breakage. In the textile industry of our Republic at present, most of the polymers mainly used for sizing cotton warp threads are natural starch. Specifically, it is described about reducing the consumption of starch, which is a food product about corn starch, which displaces chitosan and is used to ...


Installation Rational Technological Modes When Processing Cocoons, A.E. Gulamov, N.M. Islambekova, A.P. Eshmirzayev Dec 2019

Installation Rational Technological Modes When Processing Cocoons, A.E. Gulamov, N.M. Islambekova, A.P. Eshmirzayev

Textile Journal of Uzbekistan

The article studied the changes in the portion of the parking of cocoons with calibers of 16-21 mm by 8.1 ± 0.1-21 ± 0.1 times, while assessing the degree of parking in calibers of 16 mm, The increase in mass after parking was 8.1 ± 0.1 times, in calibers of 17 mm by 8.5 ± 0.1 times, in calibers of 18 mm by 9.0 ± 0.1 times, in calibers of 19 mm by 9.3 ± 0.1 times, in calibres of 20 mm by 9.9 ± 0.1 times and in calibers of 21 mm it ...


Theoretical Study Of The Process Of Issue Of Small Weed Impurities From A Flap Of A Cotton, B.M. Mardonov, X.S. Usmanov, F.N. Sirojiddinov Dec 2019

Theoretical Study Of The Process Of Issue Of Small Weed Impurities From A Flap Of A Cotton, B.M. Mardonov, X.S. Usmanov, F.N. Sirojiddinov

Textile Journal of Uzbekistan

It is known that the process of cleaning weed impurities from cotton is complex and, theoretically, this process has not been adequately studied. The reason for this is that the forces that bind weed impurities and fibers have not been studied. Applied modern power circuits are insufficient to classify this process. Therefore, it is advisable to study this process using other methods. The article presents the patterns obtained as a result of theoretical researches, describing the processes of effective separation of weed impurities from cotton. As a result of the movement of the cotton mass on the outer side of ...


On One Method Of Calculating Transmission Tension Extended Belt Mechanism, R.X. Maksudov, M. Ergashov, Sh.S. Xoldorov Dec 2019

On One Method Of Calculating Transmission Tension Extended Belt Mechanism, R.X. Maksudov, M. Ergashov, Sh.S. Xoldorov

Textile Journal of Uzbekistan

A statement, an analytical solution and an algorithm for calculating the tension of the problem of determining the adjustment and current tension of the branches of the tensile belt of the transmission mechanism with two internal and two external pulleys, rotating in stationary mode at a constant speed, are proposed. The inner pulleys rotate clockwise and the outer pulleys rotate in the opposite direction. In the mathematical model of the problem, the actions of the driving force of the engine are taken into account. Schemes of calculation and action of forces on the belt and the surface of the corresponding ...


Research Results Of Technological Indicators Of Linter Of Colors Construction, R.Sh. Sulaymonov, M.X. Axmedov, A.A. Ismoilov Dec 2019

Research Results Of Technological Indicators Of Linter Of Colors Construction, R.Sh. Sulaymonov, M.X. Axmedov, A.A. Ismoilov

Textile Journal of Uzbekistan

Expanding the cross-section of 5LP linter working chambers used in cotton-ginning factories did not significantly improve linear performance. When using 5LP linter saws from 320 mm to 290 mm, the height of their access to the working chamber ranges from 32 mm to 25 mm, due to the low sawing height of the saw, the bulk of the saws moving between the saw blades and the mixer is affected, causing some of the linear seeds is pulled out of the chamber to enter the working cell. In linear technology of cotton lintering of cotton ginneries according to Coordinated Cotton Processing ...


Research Of The Chemical Composition Of The Working Surface Of The Gin Grate Which Is Restored By Welding, K. Qosimov, X. Xoshimov, Sh. Yо‘Ldashev, J. Ashurboyev Dec 2019

Research Of The Chemical Composition Of The Working Surface Of The Gin Grate Which Is Restored By Welding, K. Qosimov, X. Xoshimov, Sh. Yо‘Ldashev, J. Ashurboyev

Textile Journal of Uzbekistan

This article describes the technology for restoring worn working surfaces of a grate of a saw gin by surfacing them. During wear of the working surfaces of the grate of the gin. It causes poor fiber quality. Worn parts lead machines to work with a deviation from the set parameters, reduces the efficiency of machines, leads to the emergence of additional load-bearing machines, which leads to a deterioration in the operating condition and the weakening of machinery mechanisms. To prevent these drawbacks of worn parts instead of replacement with new ones, surfacing under the flux is used, which is economically ...


Modeling Of The Interaction Of The Flow Of A Fiber Mass With Discrete-Positioned Bars In The Process Of Cleaning It From Weed Impurities, T.M. Kuliyev, E.T. Maksudov, R.Sh. Sulaymonov, B.M. Mardonov, D.X. Umarxodjayev Dec 2019

Modeling Of The Interaction Of The Flow Of A Fiber Mass With Discrete-Positioned Bars In The Process Of Cleaning It From Weed Impurities, T.M. Kuliyev, E.T. Maksudov, R.Sh. Sulaymonov, B.M. Mardonov, D.X. Umarxodjayev

Textile Journal of Uzbekistan

Cotton fiber is widely used in the textile industry. The introduction of progressive spinning methods poses the problem of the need to further search for ways to improve the quality of the fiber produced at cotton plants. Used serial single-drum fiber cleaners of brand 1VPU for cleaning fiber at cotton factories are not able to achieve the required cleaning effect due to imperfection of the design. Due to the low cleaning effect of the machine, such difficult-to-remove fractions as beaten seeds and peel with fiber do not completely stand out from the fiber, which greatly complicates the use of fiber ...


Sampling Quenching Parameters Of Ginning And Linter Ribs, M. Agzamov, M.B. Raxmatov, M.M. Agzamov Dec 2019

Sampling Quenching Parameters Of Ginning And Linter Ribs, M. Agzamov, M.B. Raxmatov, M.M. Agzamov

Textile Journal of Uzbekistan

The article provides substantiation of the choice of the quenching parameters for the working zone of gin and linter grates and the quenching parameters. The results of bench and industrial tests of the grate with a hardened working zone are also given. In order to determine the quality of hardening of the working surface of the grate, studies were conducted to determine the hardness and wear resistance. Hardness was measured in two areas - hardened and not hardened, for a comparative evaluation. As the test results showed, by hardening the surface of the working zone, a surface hardness of up to ...


Properties Of The Shell Of Cocoons Of The Local Hybrid Grown In The Repeated Season, A.E. Gulamov, X.X. Umurzakova, J.A. Axmedov, Sh.Q. Ermatov, Q.E. Sobirov Dec 2019

Properties Of The Shell Of Cocoons Of The Local Hybrid Grown In The Repeated Season, A.E. Gulamov, X.X. Umurzakova, J.A. Axmedov, Sh.Q. Ermatov, Q.E. Sobirov

Textile Journal of Uzbekistan

This article studied the properties of the shell of cocoons: thickness; power; density; porosity; Unwinding of locally grown hybrids Asaka-Margilan and Ipakchi1-Ipakchi2. Influencing factors on the quality of raw silk were determined by conducting experiments. t is scientifically substantiated that, when performing high-quality sorting of cocoons, the quality of raw silk is improved. It was revealed that the properties of the shell of cocoons in the experimental version are significantly higher than in the control. Results of researches are resulted in the table and histograms. The selection of raw materials for the production of new products from natural silk is ...


Production Method Of High Quality Papers, X.A. Alimova, I.A. Bulanov, J.A. Axmedov, I.A. Nabiyeva Dec 2019

Production Method Of High Quality Papers, X.A. Alimova, I.A. Bulanov, J.A. Axmedov, I.A. Nabiyeva

Textile Journal of Uzbekistan

The article describes various methods of obtaining paper. The problem that exists in the manufacture of banknotes, securities and other security documents that use security threads and other elements that can be embedded partially or completely in paper is substantiated. These protective elements, as a rule, have metal, magnetic, microminiature, printed, and luminous filaments, which in most cases use aluminum deposited in vacuum. These approaches lead to particularly high costs due to the multi-stage process, and the use of metallized tape can not always provide optimal results in terms of protection. The article also describes the requirements for fibrous materials ...


Skin And Fur Properties Filled With White Containing Polymers, T.J. Qodirov, Sh.Sh. Shoyimov, J.Sh. Azimov Dec 2019

Skin And Fur Properties Filled With White Containing Polymers, T.J. Qodirov, Sh.Sh. Shoyimov, J.Sh. Azimov

Textile Journal of Uzbekistan

The results of the study of finished leather and fur filled with a protein-containing polymer compound are presented. A filler was selected from chrome leather wastes and the proposed technology for the use of filling for leather and fur was analyzed. In the process of filling the skin and fur, the correspondence of the flow rate of the new head to the mass of the semi-finished product that increases the mechanical properties is determined. In order to analyze the effect of the obtained filler on the connective tissue of the skin and fur, a comparison was made of studies of ...


Calculation Of Heat Exchange Intensity At Gas-Liquid Flow Washing Tube-Lattice Nozzles, Elbek Tulkinovich Mavlonov, Zakirova Nafisa Sanatovna, Kudratilla Fuadovich Karimov, Khabibulla Sagdullaevich Nurmukhamedov Dec 2019

Calculation Of Heat Exchange Intensity At Gas-Liquid Flow Washing Tube-Lattice Nozzles, Elbek Tulkinovich Mavlonov, Zakirova Nafisa Sanatovna, Kudratilla Fuadovich Karimov, Khabibulla Sagdullaevich Nurmukhamedov

Chemical Technology, Control and Management

Several experiments were conducted on removing the heat of reaction upon contact of carbon dioxide with purified brine. Pipes with a developed heat exchange surface formed by spiral grooves on the outside and similar protrusions inside the pipes are used for effective conduction. The experiments were carried out on two and four pipes with different pitch and depth of grooves,i.e. h / S = 0.017-0.095. Studies on the intensification of convective heat exchange when washing a bundle of spiral-rolled pipes with a gas-liquid flow have found an increase in heat transfer by 1.8-2.7 times compared to ...


A Study On Electrical Energy Measuring Device In Installation Place, Anatoliy Plakhtiev, Gayratjon Gaziev Dec 2019

A Study On Electrical Energy Measuring Device In Installation Place, Anatoliy Plakhtiev, Gayratjon Gaziev

Chemical Technology, Control and Management

An analysis of the metrological support of electric energy metering devices has been carried out, which allows us to note a number of shortcomings, which include the insufficiency and imperfection of normative and technical documentation on electric energy metering and control, operation and verification of existing measuring instruments, poor equipment of enterprises and territorial bodies of Uzstandart Agency with high-performance calibration installations, the absence of portable compact installations for checking meters at the place of use, braztsovyh higher accuracy of measuring (standards). Information is provided on the developed device that allows structurally minimizing the error in current conversion and using ...


Modeling Of Multicomponent Rectification Under Uncertainty, Nodirbek Rustambekovich Yusupbekov, Djalol Patxiddinovich Mukhitdinov, Yorkin Bakhodirovich Kadirov Dec 2019

Modeling Of Multicomponent Rectification Under Uncertainty, Nodirbek Rustambekovich Yusupbekov, Djalol Patxiddinovich Mukhitdinov, Yorkin Bakhodirovich Kadirov

Chemical Technology, Control and Management

This paper presents a complete computer model for an industrial distillation column, which considers the input, output and model (nonlinearity and high-frequency dynamics of the process) uncertainties. The proposed model has a great advantage of covering the entire working range of the distillation column. This model can be used as a main tool for the analysis and synthesis of distillation process control systems.


Algorithms For Regular Synthesis Of Adaptive Systems Management Of Technological Objects Based On The Concepts Of Identification Approach, Husan Zakirovich Igamberdiev, Jasur Usmonovich Sevinov Dec 2019

Algorithms For Regular Synthesis Of Adaptive Systems Management Of Technological Objects Based On The Concepts Of Identification Approach, Husan Zakirovich Igamberdiev, Jasur Usmonovich Sevinov

Chemical Technology, Control and Management

Stable algorithms of adaptive control, estimation of controller parameters, synthesis of adaptive control of dynamic objects by the criterion of minimum dispersion, and synthesis of suboptimal adaptive-local control of dynamic objects based on predictive models are presented. Algorithms for the stable identification of dynamic control objects based on regularization and pseudoinversion methods based on a singular decomposition are presented. Based on the use of approximations in the form of a finite sum of Gaussian distributions, recurrent identification algorithms have been developed using multiple models and adapting their parameters. Stable algorithms are proposed for identifying the parameters of an object and ...


Sustainable Algorithms For Generalized Estimation Of Dynamic Control Objects, Yulduz Muhtarhodjaeva Abdurakhmanova Dec 2019

Sustainable Algorithms For Generalized Estimation Of Dynamic Control Objects, Yulduz Muhtarhodjaeva Abdurakhmanova

Chemical Technology, Control and Management

The problems of separate and generalized assessment of the state and parameters of controlled objects under conditions of varying degrees of a priori uncertainty are considered. Stable algorithms for the generalized estimation of the state and parameters based on the quasilinearization method and the formal model of motion under conditions of statistical uncertainty, as well as the correction of the results of the generalized estimation, are presented. It is shown that the considered regularized generalized coordinate and parametric estimation algorithms make it possible to recover with sufficient accuracy the extended state vector of a dynamical system. The above algorithms make ...


Development Of Structures Of Intellectual Information Protection System, Tulkun Fayzievich Bekmuratov, Fayzullajon Bakhtiyorovich Botirov Dec 2019

Development Of Structures Of Intellectual Information Protection System, Tulkun Fayzievich Bekmuratov, Fayzullajon Bakhtiyorovich Botirov

Chemical Technology, Control and Management

The structures of intelligent information protection systems are considered. The tree of tasks for protecting information of the information system of enterprise is presented. Information security management systems without automation of management processes and automated information security management systems are considered. The functional capabilities of multi-agent information protection systems are investigated and possible risks are analyzed. The proposed schemes of automated and automated information security management systems are described. The proposed technology for constructing a software package for an enterprise information security management system is considered, based on the concept of multi-agent systems as the basic technology for software implementation ...


The Study Of Dynamic Modes Of Converters With Movable Electromagnetic Screens And Distributed Parameters, S.F. Amirov, О.Т. Boltayev Dec 2019

The Study Of Dynamic Modes Of Converters With Movable Electromagnetic Screens And Distributed Parameters, S.F. Amirov, О.Т. Boltayev

Chemical Technology, Control and Management

In article for research of dynamic characteristics of the created Converter with mobile electromagnetic screens and with the distributed parameters, the parametric block diagram is made. Based on the parametric block diagram, the analytical equation of the output voltage in the operator form is compiled for the dynamic mode. In order to study the dynamic properties of the transducer with moving electromagnetic screens and distributed parameters, the influence of input values on the reaction of the transducer is considered. On the basis of the revealed expressions the nonlinearities of the transient process are considered.


Algebraic Correction Of Algorithms For Recognition And Identification Of Biological Objects In Data Mining Problems, Mirzoyan Kamilov, Mirzaakbar Hudayberdiev Dec 2019

Algebraic Correction Of Algorithms For Recognition And Identification Of Biological Objects In Data Mining Problems, Mirzoyan Kamilov, Mirzaakbar Hudayberdiev

Chemical Technology, Control and Management

The integration of information technologies with biology is considered, enabling specialists to further study the subject area. The object of the study is the identification of the information structure and parameters of Insects Orthoptera of Uzbekistan. For this purpose, an information and identification software complex were created and the analysis of the variety of orthoptera having a certain internal structure and, accordingly, the formed structure of the relational database of the Insecta Orthoptera species was carried out. At the same time, attention will also be paid to the study of a number of scientific issues, one way or another related ...


Optimization Of Image Processing Using Characteristics And Peculiarities Of Pollen Grains, I.I. Jumanov, O.I. Djumanov, R.A. Safarov Dec 2019

Optimization Of Image Processing Using Characteristics And Peculiarities Of Pollen Grains, I.I. Jumanov, O.I. Djumanov, R.A. Safarov

Chemical Technology, Control and Management

The problem is formulated and methods for processing images, in particular pollen grains, based on the mechanisms for extracting statistical, dynamic, texture and specific characteristics, as well as geometric features of micro-objects, are developed. Methods are proposed for assessing the accuracy of processing information on the characteristics of points, point and non-linear verification of the contour of the input and reference images, highlighting, segmenting, contrasting, interpolating. The mechanisms of extracting frequency, cytoplasm, reticules, spores, textures, morphology, and geometric features of pollen grain images are studied. A set of programs for processing microobject images in C ++ language in the CUDA parallel ...


Impact Of Organizational Culture And Perceived Process Safety In The Uae Oil And Gas Industry, Mohamed Ali Al Mazrouei Mr., Khalizani Khalid Dr., Ross Davidson Dr., Salam Abdallah Dr. Dec 2019

Impact Of Organizational Culture And Perceived Process Safety In The Uae Oil And Gas Industry, Mohamed Ali Al Mazrouei Mr., Khalizani Khalid Dr., Ross Davidson Dr., Salam Abdallah Dr.

The Qualitative Report

In the last few decades, there had been a lot of accidents in the oil and gas industry throughout the world. This article reports a qualitative study of 30 employees employed in the United Arab Emirates (UAE) oil and gas industry. Health, Safety, and Environment (HSE) culture is a concept which was studied in many researches. However, this research is set to examine how certain behaviors affect the safety performance in UAE’s oil and gas industry. Four core themes that were drawn from the interviewee discussions of how safety culture, leadership safety behaviors, supervisory safety behaviors, and employee training ...


Smart Factories, Dumb Policy? Managing Cybersecurity And Data Privacy Risks In The Industrial Internet Of Things, Scott J. Shackelford Dec 2019

Smart Factories, Dumb Policy? Managing Cybersecurity And Data Privacy Risks In The Industrial Internet Of Things, Scott J. Shackelford

Minnesota Journal of Law, Science & Technology

No abstract provided.


Attitudes Towards Teaching Computational Thinking And Computer Science: Insights From Educator Interviews And Focus Groups, Jorge Valenzuela Dec 2019

Attitudes Towards Teaching Computational Thinking And Computer Science: Insights From Educator Interviews And Focus Groups, Jorge Valenzuela

Journal of Computer Science Integration

In the last three years, integration of both computational thinking (CT) and computer science (CS) into K-12 instruction has become a focus of many schools throughout the Commonwealth of Virginia and the United States. With this new widespread demand, educational leaders and educators are focusing efforts on understanding the core concepts and practices of CT and CS, looking for logical connections for integrating across curriculum, and seeking strategies for implementing a wide variety of educational technology tools (apps and devices). This phenomenological research study was designed to gather depth information from 14 K-16 educators through both semi-structured interviews and two ...


Identifying Customer Churn In After-Market Operations Using Machine Learning Algorithms, Vitaly Briker, Richard Farrow, William Trevino, Brent Allen Dec 2019

Identifying Customer Churn In After-Market Operations Using Machine Learning Algorithms, Vitaly Briker, Richard Farrow, William Trevino, Brent Allen

SMU Data Science Review

This paper presents a comparative study on machine learning methods as they are applied to product associations, future purchase predictions, and predictions of customer churn in aftermarket operations. Association rules are used help to identify patterns across products and find correlations in customer purchase behaviour. Studying customer behaviour as it pertains to Recency, Frequency, and Monetary Value (RFM) helps inform customer segmentation and identifies customers with propensity to churn. Lastly, Flowserve’s customer purchase history enables the establishment of churn thresholds for each customer group and assists in constructing a model to predict future churners. The aim of this model ...