Relevant bibliographies by topics / Industrial efficiency – Mathematical methods

Academic literature on the topic 'Industrial efficiency – Mathematical methods'

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Published: 10 March 2023

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Journal articles on the topic "Industrial efficiency – Mathematical methods"

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Alieva, N. "Economic and Mathematical Modeling of the Innovation Process in the Agro-Industrial Sector." Economic Herald of the Donbas, no. 4 (66) (2021): 29–32. http://dx.doi.org/10.12958/1817-3772-2021-4(66)-29-32.

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Modern scientific research in the field of agriculture is increasingly based on various mathematical calculations. In practice, it is the economic and mathematical models that are of particular importance. These methods and approaches are particularly valuable and widespread in the production environment, but in the modern conditions of production and economic activity, more and more industrial economic entities are faced with the application of mathematical models in order to improve the efficiency of investment resource management.
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Havrylenko, Mykola, Vira Shiyko, Liliana Horal, Inesa Khvostina, and Natalia Yashcheritsyna. "Economic and mathematical modeling of industrial enterprise business model financial efficiency estimation." E3S Web of Conferences 166 (2020): 13025. http://dx.doi.org/10.1051/e3sconf/202016613025.

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The article proposes two methods for evaluating the financial efficiency of a business model of industrial enterprises. In order to evaluate the financial efficiency of the business model of an industrial enterprise, a system of single indicators for assessing the financial condition of the enterprise by such components as financial stability, liquidity and solvency, business activity and profitability was formed. Fishburne’s rule weights the major components of an integral measure of an enterprise’s business model financial performance. In addition, an integral measure of the financial performance of the business model is modeled using the fuzzy set method and taxonomic analysis, which will help to evaluate the financial performance level of the business model more objectively. The comparative analysis of the obtained results by different methods of calculation of integral indicators is carried out.
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Lokhman, Natalia, Tatiana Beridze, Zoya Baranik, Alla Cherep, Iryna Dashko, and Oxana Hamova. "ECONOMIC AND MATHEMATICAL MODELING OF THE FUNCTIONING OF AN INDUSTRIAL ENTERPRISE." Financial and credit activity problems of theory and practice 2, no. 43 (April 29, 2022): 182–91. http://dx.doi.org/10.55643/fcaptp.2.43.2022.3642.

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The purpose of the article is to model the activities of an industrial enterprise as an independent economic unit in order to increase the profit of the enterprise in terms of economic efficiency.Method. In the course of the research the methodology of economic-mathematical modeling was applied. The enterprise is considered as a complex system — a sublimated enterprise, an economic object. The use of simulation methods on specific statistical material of the industrial enterprise «PivdGOK» is given. The application of the methods of digital economy allowed to obtain the relevant indicators of the enterprise and to obtain appropriate visual and graphical representations of the results.Results. The economic and mathematical model of the industrial enterprise of PJSC «PivdGOK» is constructed, it allowed to generalize results of activity of the industrial enterprise. Analytical relations concerning the activity of an industrial enterprise are obtained, namely a systematic study of the relationship between costs, volume of activity and profit of the enterprise.Scientific novelty. For the first time the economic-mathematical model of activity of the industrial enterprise in the sense of definition of its effective functioning as economic unit is constructed. Obtained in the implicit form of the dependence of profit at a given economic efficiency allowed us to investigate this relationship in order to build a simulation model.Practical significance. The use of Mathcad software allowed to building a simulation model of the industrial enterprise. An analytical expression of the connection between economic efficiency and profit is obtained, which allows to carry out a corresponding analysis of the activity of an industrial enterprise. It is shown under what conditions it is possible to achieve the greatest profit at a given economic efficiency. The use of digital modeling allowed to numerically obtain the optimal values of profit and graphically display the results. Graphical representation of the obtained results allows for visual analysis.
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Aliyeva, Nailya Rauf kyzy. "Economic and Mathematical Modeling of the Innovation Process in the Agro-Industrial Sector." Economic Herald of the Donbas, no. 2 (64) (2021): 118–22. http://dx.doi.org/10.12958/1817-3772-2021-2(64)-118-122.

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Modern scientific research in the agro-industrial sphere is increasingly based on various mathematical calculations. In practice, it is economic and mathematical models that are of particular importance. These methods and approaches have gained particular value and distribution in the production environment, but in modern conditions of production and economic activity, more and more sectoral economic entities are faced with the application of mathematical models in order to improve the efficiency of investment resource management.
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Mnatsakanyan, Maria, Tetiana Danilova, Mykola Nazarenko, and Valentyna Kuzmych. "Transport network formation of the industrial center on the basis of simulation methods." Avtoshliakhovyk Ukrayiny, no. 1 (253) ’ 2018 (March 26, 2018): 25–29. http://dx.doi.org/10.33868/0365-8392-2018-1-253-25-29.

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The problem of creating a new system for managing the process of functioning of the sitylogical system of an industrial center in real time is considered. The analysis of the development of existing architectural forms of LEDMF is made and their main characteristics are identified. The necessity of forming rational traffic routes based on the simulation model as a way of increasing the efficiency of managing process functioning sitylogical system of the industrial center in real time Keywords: sitylogical system, linear elements of districts of municipal formations (LEDMF), mathematical model, cyclic transport frame.
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Demareva, Elena E. "KEY PERFORMANCE INDICATORS OF INDUSTRIAL SAFETY OF ENTERPRISES." Krasnoyarsk Science 11, no. 3 (October 30, 2022): 7–16. http://dx.doi.org/10.12731/2070-7568-2022-11-3-7-16.

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This article discusses the issues of assessing the level of industrial safety of enterprises in terms of the efficiency of industrial enterprises, requiring an increase in production efficiency, ensuring the efficiency of products and services by mastering the ways of effective production management, the achievements of scientific and technological progress. Purpose: The article discusses key performance indicators as methods of industrial safety of an enterprise and a tool for analyzing and evaluating the level of a company’s performance. Method, methodology of the work: The article used theoretical materials, economic and mathematical methods, statistical methods of analysis. Results: The most informative parameters were obtained, showing some aspects of the analysis of key performance indicators of industrial enterprises. Scope of the results: The results obtained can be successfully applied in different areas of the economy for different economic entities, it is possible to use both for young firms and for organizations with sufficient experience.
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Kononchuk, Viktor Viktorovich. "USING METHODS OF ECONOMIC AND MATHEMATICAL MODELING IN INCREASING THE EFFICIENCY OF THE REGIONAL AGRO-INDUSTRIAL COMPLEX." Экономика сельского хозяйства России, no. 3 (March 1, 2022): 88–93. http://dx.doi.org/10.32651/223-88.

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Klíma, J., and M. Palát. "Labour productivity as a factor forming the economic efficiency and competitive ability of the country." Agricultural Economics (Zemědělská ekonomika) 49, No. 11 (March 2, 2012): 515–19. http://dx.doi.org/10.17221/5440-agricecon.

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The paper is focused on the evaluation of labour productivity in industry as a whole and in the selected branches in the Czech Republic in 1997–2001. The labour productivity index for employees is the ratio of industrial production indices and indices of the number of employees. Methods of regression and correlation analysis and development trends were applied for the mathematical-statistical analysis.
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Petrenko, Yuri, and Ruslan Posukan. "CRITERIA AND MODEL OF CHOICE OF INDUSTRIAL ROBOT." Bulletin of Kharkov National Automobile and Highway University 1, no. 92 (January 17, 2021): 109. http://dx.doi.org/10.30977/bul.2219-5548.2021.92.0.109.

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Problem. The relevance of the work is to increase the efficiency of robotics in Ukraine based on the development of computer technology for the selection of industrial robots for the enterprise, which will improve the quality of robot selection and increase productivity in all industries. Goal. Substantiate the criteria and develop the mathematical model for the selection of an industrial robot. The proposed mathematical model will allow the development of computer technology for the selection of industrial robots for the enterprise. Methodology. This work gives the analysis of the development of robotics in Ukraine, theoretical material on industrial robots, substantiated the criteria for the selection of industrial robots, the developed mathematical model for the selection of robots. Results. The developed criteria and mathematical model of an industrial robot selection allow making scientifically substantiated decisions on the acquisition of an industrial robot by an enterprise according to many criteria. This will reduce the time and cost of making a decision. Originality. Was received further development of making decision methods according to many criteria an was developed the mathematical model of the industrial robot selection. Practical value. The proposed mathematical model will allow the development of computer technology for the selection of industrial robots for the enterprise. This will reduce spent time and money to choose a robot.
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Gaponenko, S. O., A. E. Kondratiev, and R. Z. Shakurova. "Improving the efficiency of energy complexes and heat supply systems using mathematical modeling methods at the operational stage." E3S Web of Conferences 124 (2019): 05029. http://dx.doi.org/10.1051/e3sconf/201912405029.

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Improving the efficiency and energy saving of energy complexes and heat supply systems is one the most important fields of the Russian economy modernization. In the field of industrial heat and power engineering, the increasing energy efficiency is an urgent task both at the design stage and at the equipment operation stage. For these purposes, numerical modeling methods are actively used. The paper presents the developed mathematical model of the pipeline located in the soil, which allows improving efficiency of energy systems and heat supply systems at the stage of operation. Also this paper presents the results of laboratory studies, namely, the informative frequency ranges of the investigated pipeline for further assessment of its technical condition.
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Dissertations / Theses on the topic "Industrial efficiency – Mathematical methods"

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Huang, Jun, and 黃俊. "Efficiency enhancement for nanoelectronic transport simulations." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/196031.

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Continual technology innovations make it possible to fabricate electronic devices on the order of 10nm. In this nanoscale regime, quantum physics becomes critically important, like energy quantization effects of the narrow channel and the leakage currents due to tunneling. It has also been utilized to build novel devices, such as the band-to-band tunneling field-effect transistors (FETs). Therefore, it presages accurate quantum transport simulations, which not only allow quantitative understanding of the device performances but also provide physical insight and guidelines for device optimizations. However, quantum transport simulations usually require solving repeatedly the Green’s function or the wave function of the whole device region with open boundary treatment, which are computationally cumbersome. Moreover, to overcome the short-channel effects, modern devices usually employ multi-gate structures that are three-dimensional, making the computation very challenging. It is the major target of this thesis to enhance the simulation efficiency by proposing several fast numerical algorithms. The other target is to apply these algorithms to study the physics and performances of some emerging electronic devices. First, an efficient method is implemented for real space simulations with the effective mass approximation. Based on the wave function approach, asymptotic waveform evaluation combined with a complex frequency hopping algorithm is successfully adopted to characterize electron conduction over a wide energy range. Good accuracy and efficiency are demonstrated by simulating several n-type multi-gate silicon FETs. This technique is valid for arbitrary potential distribution and device geometry, making it a powerful tool for studying n-type silicon nanowire (SiNW) FETs in the presence of charged impurity and surface roughness scattering. Second, a model order reduction (MOR) method is proposed for multiband simulation of nanowire structures. Employing three- or six-band k.p Hamiltonian, the non-equilibrium Green’s function (NEGF) equations are projected into a much smaller subspace constructed by sampling the Bloch modes of each cross-section layer. Together with special sampling schemes and Krylov subspace methods for solving the eigenmodes, large cross-section p-type SiNW FETs can be simulated. A novel device, junctionless FET, is then investigated. It is found that its doping density, channel orientation, and channel size need to be carefully optimized in order to outperform the classical inversion-mode FET. With a spurious band elimination process, the MOR method is subsequently extended to the eight-band k.p model, allowing simulation of band-to-band tunneling devices. In particular, tunneling FETs with indium arsenide (InAs) nanowire channel are studied, considering different channel orientations and configurations with source pockets. Results suggest that source pocket has no significant impact on the performances of the nanowire device due to its good electrostatic integrity. At last, improvements are made for open boundary treatment in atomistic simulations. The trick is to condense the Hamiltonian matrix of the periodic leads before calculating the surface Green’s function. It is very useful for treating leads with long unit cells.
published_or_final_version
Electrical and Electronic Engineering
Doctoral
Doctor of Philosophy
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Mendoza, Maria Nimfa F. "Essays in production theory : efficiency measurement and comparative statics." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/30734.

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Nonparametric linear programming tests for consistency with the hypotheses of technical efficiency and allocative efficiency for the general case of multiple output-multiple input technologies are developed in Part I. The tests are formulated relative to three kinds of technologies — convex, constant returns to scale and quasiconcave technologies. Violation indices as summary indicators of the distance of an inefficient observation from an efficient allocation are proposed. The consistent development of the violation indices across the technical efficiency and allocative efficiency tests allows us to obtain comparative measures of the degrees of technical inefficiency and pure allocative inefficiency. Constrained optimization tests applicable to cases where the producer is restricted to optimizing with respect to a subset of goods are also proposed. The latter tests yield the revealed preference-type inequalities commonly used as tests for consistency of observed data with profit maximizing or cost minimizing behavior as limiting cases. Computer programs for implementing the different tests and sample results are listed in the appendix. In part II, an empirical comparison of nonparametric and parametric measures of technical progress for constant returns to scale technologies is performed using the Canadian input-output data for the period 1961-1980. The original data base was aggregated into four sectors and ten goods and the comparison was done for each sector. If we assume optimizing behavior on the part of the producers, we can reinterpret the violation indices yielded by the efficiency tests in part I as indicators of the shift in the production frontier. More precisely, the violation indices can be considered nonparametric chained indices of technical progress. The parametric measures of technical progress were obtained through econometric profit function estimation using the generalized McFadden flexible functional form with a quadratic spline model for technical progress proposed by Diewert and Wales (1989). Under the assumption of constant returns, the index of technical change is defined in terms of the unit scale profit function which gives the per unit return to the normalizing good. The empirical results show that the parametric estimates of technical change display a much smoother behavior which can be attributed to the incorporation of stochastic disturbance terms in the estimation procedure and, more interestingly, track the long term trend in the nonparametric estimates. Part III builds on the theory of minimum wages in international trade and is a theoretical essay in the tradition of analyzing the effects of factor market imperfections on resource allocation. The comparative static responses of the endogenous variables — output levels, employment levels of fixed-price factors with elastic supply and flexible prices of domestic resources — to marginal changes in the economy's exogenous variables — output prices, fixed factor prices and endowments of flexibly-priced domestic resources -— are examined. The effect of a change in a fixed factor price on other flexible factor prices can be decomposed Slutsky-like into substitution and scale effects. A symmetry condition between fixed factor prices and flexible factor prices is obtained which clarifies the concepts of "substitutability" and "complementarity" between these two kinds of factors. As an illustration, the model is applied to the case of a devaluation in a two-sector small open economy with rigid wages and capital as specific factors. The empirical implementation of the general model for the Canadian economy is left to more able econometricians but a starting point can be the sectoral analysis performed in Part II.
Arts, Faculty of
Vancouver School of Economics
Graduate
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deCamp, Philip Draper. "The efficiency of nonparametric inference methods based on confidence interval lengths." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/25510.

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POSCHKE, Markus. "Firm heterogeneity and macroeconomic performance." Doctoral thesis, European University Institute, 2007. http://hdl.handle.net/1814/10310.

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Defence date: 7 December 2007
Examining Board: Prof. Omar Licandro, (EUI) ; Prof. Salvador Ortigueira, (EUI) ; Prof. Russell Cooper, (University of Texas at Austin) ; Prof. Jaume Ventura, (CREI, Universitat Pompeu Fabra)
PDF of thesis uploaded from the Library digital archive of EUI PhD theses
The regulation of entry and aggregate productivity Euro Area economies have lower firm turnover rates, lower total factor and labor productivity, and higher capital intensity than the Unites States. I argue that differences in entry cost contribute to this pattern by affecting firms' technology choice. Introducing technology choice into a standard heterogeneous firm model, small differences in administrative entry cost suffice to explain 10-20% of differences in total factor productivity and the capital-output ratio. The productivity difference arises because higher equilibrium capital intensity acts as an entry barrier and protects low-productivity incumbents. Both firm heterogeneity and technology choice are crucial for strengthening results compared to previous studies. 2 Employment protection, firm selection, and growth This paper analyzes the effect of ring costs on aggregate productivity growth. For this purpose, a model of endogenous growth through selection and imitation is developed. It is consistent with recent evidence on firm dynamics and on the importance of reallocation for productivity growth. In the model, growth is driven by selection among heterogeneous incumbent firms, and is sustained as entrants imitate the best incumbents. In this framework, firing costs not only induce misallocation of labor, but also affect growth by affecting firms' exit decisions. Importantly, charging firing costs only to continuing firms raises growth by promoting selection. Also charging them to exiting firms is akin to an exit tax, hampers selection, and reduces growth { by 0.1 percentage points in a calibrated version of the model. With job turnover very similar in the two settings, this implies that the treatment of exiting firms matters for welfare. In addition, the impact on growth rates is larger in sectors where firms face larger idiosyncratic shocks, as in services. This fits evidence that recent EU-US growth rate differences are largest in these sectors and implies that firing costs can play a role here. A brief empirical analysis of the impact of firing costs on the size of exiting firms supports the model's conclusions. 3 The labor market, the decision to become an entrepreneur, and the firm size distribution Why do some people become entrepreneurs, and how do labor markets affect this choice? This paper addresses this question using a matching model with occupational choice and heterogeneity in both ability as a worker and ex ante unknown productivity of firm start-ups. Key effects are the following: labor market conditions affect incentives to start firms differently for workers and the unemployed, with repercussions on aggregate productivity; and they affect the expected value of firm creation due to the possibility of failure. These effects go beyond the standard impact of labor market conditions on firms' employment policy and value. The correlation of observed productive ability and potential productivity significantly shapes the firm size distribution, suggesting that the empirical correlation is positive but far from perfect. Finally, the model allows for a comparatively flexible lower tail of the firm size distribution and can explain the existence and persistence of small, lowproductivity firms with low profits: their owners have low outside options in the labor market.
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Epple, Alexander. "Methods for increased computational efficiency of multibody simulations." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26532.

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Thesis (Ph. D.)--Aerospace Engineering, Georgia Institute of Technology, 2009.
Committee Chair: Olivier A. Bauchau; Committee Member: Andrew Makeev; Committee Member: Carlo L. Bottasso; Committee Member: Dewey H. Hodges; Committee Member: Massimo Ruzzene. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Johnson, Andrew. "Methods in productivity and efficiency analysis with applications to warehousing." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/29400.

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Thesis (Ph.D)--Industrial and Systems Engineering, Georgia Institute of Technology, 2006.
McGinnis, Leon - Committee Chair, Griffin, Paul - Committee Member, Hackman, Steve - Committee Member, Parsons, Len - Committee Member, Sharp, Gunter - Committee Member. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Wang, You-song, and 王幼松. "An analysis of the technical efficiency in Hong Kong's construction industry." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31239420.

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Palmer, Kurt D. "Data collection plans and meta models for chemical process flowsheet simulators." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/24511.

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Zawartka-Czekaj, Monika, and P. G. Pererva. "Economic methods of waste management in Poland and Ukraine." Thesis, NTU "KhPI", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/27082.

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Discussed the theoretical-methodical principles of cost management in transitive economy. The features of cost management in the Ukrainian and Polish economies.
Розглянуто теоретико-методичні положення управління витратами в транзитивній економіці. Досліджено особливості менеджменту витрат в українській та польській економіці.
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Takaidza, Isaac. "Modelling the optimal efficiency of industrial labour force in the presence of HIV/AIDs pandemic." Thesis, Cape Peninsula University of Technology, 2012. http://hdl.handle.net/20.500.11838/1305.

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Thesis (DTech (Mechanical Engineering))--Cape Peninsula University of Technology, 2012
In this thesis, we investigate certain key aspects of mathematical modelling to explain the epidemiology of HIV/AIDS at the workplace and to assess the potential benefits of proposed control strategies. Deterministic models to investigate the effects of the transmission dynamics of HIV/AIDS on labour force productivity are formulated. The population is divided into mutually exclusive but exhaustive compartments and a system of differential equations is derived to describe the spread of the epidemic. The qualitative features of their equilibria are analyzed and conditions under which they are stable are provided. Sensitivity analysis of the reproductive number is carried out to determine the relative importance of model parameters to initial disease transmission. Results suggest that optimal control theory in conjunction with standard numerical procedures and cost effective analysis can be used to determine the best intervention strategies to curtail the burden HIV/AIDS is imposing on the human population, in particular to the global economy through infection of the most productive individuals. We utilise Pontryagin’s Maximum Principle to derive and then analyze numerically the conditions for optimal control of the disease with effective use of condoms, enlightenment/educational programs, treatment regime and screening of infectives. We study the potential impact on productivity of combinations of these conventional control measures against HIV. Our numerical results suggest that increased access to antiretroviral therapy (ART) could decrease not only the HIV prevalence but also increase productivity of the infected especially when coupled with prevention, enlightenment and screening efforts.
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Books on the topic "Industrial efficiency – Mathematical methods"

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Cost structure and the measurement of economic performance: Productivity, utilization, cost economies, and related performance indicators. Boston, MA: Kluwer Academic Publishers, 1999.

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Gordon, Ferrier, ed. Quantitative methods. Exeter: Crucial, 2002.

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Zurada, Jacek M., and Boris Igelnik. Efficiency and scalability methods for computational intellect. Hershey, PA: Information Science Reference, 2013.

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Waters, C. D. J. Quantitative methods for business. 5th ed. Harlow, England: Financial Times Prentice Hall, 2011.

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Quantitative methods for business. Wokingham, England: Addison-Wesley, 1994.

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Quantitative methods for business. 3rd ed. Harlow, England: Financial Times/Prentice Hall, 2001.

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Quantitative methods for business. 2nd ed. Harlow: Addison-Wesley, 1997.

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1943-, Morris J. G., and Wesolowsky George O, eds. Facilities location: Models & methods. New York: North-Holland, 1988.

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Guan yu jing ji xiao yi tong ji di ruo gan wen ti. [Beijing]: Zhongguo tong ji chu ban she, 1989.

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Sengupta, Jatikumar. Efficiency, market dynamics and industry growth. Houndmills, Basingstoke: Palgrave Macmillan, 2009.

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Book chapters on the topic "Industrial efficiency – Mathematical methods"

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Arge, Erlend, Are Magnus Bruaset, Phillip B. Calvin, Joseph F. Kanney, Hans Petter Langtangen, and Cass T. Miller. "On the Numerical Efficiency of C++ in Scientific Computing." In Numerical Methods and Software Tools in Industrial Mathematics, 91–118. Boston, MA: Birkhäuser Boston, 1997. http://dx.doi.org/10.1007/978-1-4612-1984-2_5.

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Garzon, Maria, Robert I. Saye, and James A. Sethian. "Efficient Algorithms for Tracking Moving Interfaces in Industrial Applications: Inkjet Plotters, Electrojetting, Industrial Foams, and Rotary Bell Painting." In SEMA SIMAI Springer Series, 173–94. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-86236-7_10.

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AbstractMoving interfaces are key components of many dynamic industrial processes, in which complex interface physics determine much of the underlying action and performance. Level set methods, and their descendents, have been valuable in providing robust mathematical formulations and numerical algorithms for tracking the dynamics of these evolving interfaces. In manufacturing applications, these methods have shed light on a variety of industrial processes, including the design of industrial inkjet plotters, the mechanics of electrojetting, shape and evolution in industrial foams, and rotary bell devices in automotive painting. In this review, we discuss some of those applications, illustrating shared algorithmic challenges, and show how to tailor these methods to meet those challenges.
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Yari, Abbas, and Saeid Eslamian. "Water Efficiency Regulations in Domestic Buildings." In Urban and Industrial Water Conservation Methods, 75–86. First edition. | Boca Raton : CRC Press, 2021.: CRC Press, 2020. http://dx.doi.org/10.1201/9781003081531-5.

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Tatsien, Li, Tan Yongji, Pen Yuejun, and Li Hailong. "Mathematical methods for the SP well-logging." In Applied and Industrial Mathematics, 343–49. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-009-1908-2_29.

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Velazquez, A., J. R. Arias, and B. Mendez. "Model and Method to Increase the Thermal Efficiency of Micro-Heat Exchangers for Aerospace Applications." In Progress in Industrial Mathematics at ECMI 2006, 753–57. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-71992-2_129.

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Whiteley, J. P. "Computational and Numerical Methods for the Efficient and Accurate Solution of the Bidomain Equations." In Progress in Industrial Mathematics at ECMI 2008, 377–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-12110-4_57.

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Budina, Jan, Martin Zmítko, and Tomáš Kozel. "Improvement Efficiency of Fingerprint Database Using Mathematical Methods." In Lecture Notes in Electrical Engineering, 141–48. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-9309-3_21.

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Goorden, Martijn, Joanna van de Mortel-Fronczak, Michel Reniers, Wan Fokkink, and Jacobus Rooda. "The Impact of Requirement Splitting on the Efficiency of Supervisory Control Synthesis." In Formal Methods for Industrial Critical Systems, 76–92. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-27008-7_5.

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Sabatier, Denis. "Mathematical Proofs for the New York Subway." In Formal Methods Applied to Industrial Complex Systems, 391–407. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781119004707.ch12.

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Pollien, Baptiste, Christophe Garion, Gautier Hattenberger, Pierre Roux, and Xavier Thirioux. "Verifying the Mathematical Library of an UAV Autopilot with Frama-C." In Formal Methods for Industrial Critical Systems, 167–73. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85248-1_10.

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Conference papers on the topic "Industrial efficiency – Mathematical methods"

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Toshkhodzhaeva, Muhayo, Elena Gracheva, Umedakhon Odirmatova, Stanimir Valtchev, and Ibodkul Karimov. "Electric Losses in the Industrial Distribution Networks and Methods to Reduce them." In 2022 4th International Conference on Control Systems, Mathematical Modeling, Automation and Energy Efficiency (SUMMA). IEEE, 2022. http://dx.doi.org/10.1109/summa57301.2022.9974151.

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Ryzhkova, А. V., and N. A. Zhilnikova. "METHODS FOR ECO-EFFICIENCY ASSESSMENT OF ORGANIZATIONS." In MODELING AND SITUATIONAL MANAGEMENT THE QUALITY OF COMPLEX SYSTEMS. Saint Petersburg State University of Aerospace Instrumentation, 2021. http://dx.doi.org/10.31799/978-5-8088-1558-2-2021-2-150-156.

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This article discusses the modern concept of eco-efficiency, based on the methods of using resources for the development of an organization in terms of economic and environmental indicators through more efficient use of resources and reducing pollution. Its differences from the traditional principles of environmental efficiency are determined. Mathematical models for assessing the eco-efficiency of industrial production are proposed. The applicability of the developments is shown on the example of a microelectronics enterprise. The presented models make it possible to measure the eco-efficiency indicator, taking into account the use of all eco-parameters affecting the change in the efficient use of resources and reducing the level of pollution.
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Kuvshinnikov, Vladimir, and Evgeny Kovshov. "Models and Basic Algorithmization for VR Simulator of the Industrial Radiography Method." In 2022 4th International Conference on Control Systems, Mathematical Modeling, Automation and Energy Efficiency (SUMMA). IEEE, 2022. http://dx.doi.org/10.1109/summa57301.2022.9973985.

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Semenov, Alexander S., Ayaal N. Egorov, and Viktoriya M. Khubieva. "Assessment of Energy Efficiency of Electric Drives of Technological Units at Mining Enterprises by Mathematical Modeling Method." In 2019 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM). IEEE, 2019. http://dx.doi.org/10.1109/icieam.2019.8743025.

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Khalil, Essam E. "On the Mathematical Modeling of Heat Transfer Characteristics of Turbulent Flames in Industrial Furnaces." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-39296.

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The recent advances in numerical methods and the vast development of computers had directed the designers to better development and modifications to air flow pattern and heat transfer in combustion chambers. Extensive efforts are exerted to adequately predict the air velocity and turbulence intensity distributions in the combustor zones and to reduce the emitted pollution and noise abatement to ultimately produce quite and energy efficient combustor systems. The present work fosters mathematical modeling techniques to primarily predict what happens in three-dimensional combustion chambers simulating boiler furnaces, areo engines in terms of flow regimes and interactions. The present work also demonstrates the effect of chamber design and operational parameters on performance, wall heat transfer under various operating parameters. The governing equations of mass, momentum and energy are commonly expressed in a preset form with source terms to represent pressure gradients, turbulence and viscous action. The physical and chemical characteristics of the air and fuel are obtained from tabulated data in the literature. The flow regimes and heat transfer play an important role in the efficiency and utilization of energy. The results are obtained in this work with the aid of the three-dimensional program 3DCOMB; applied to axisymmetrical and three-dimensional complex geometry with and without swirl with liquid or gaseous fuels. The present numerical grid arrangements cover the combustion chamber in the X, R or Y and Z coordinates directions. The numerical residual in the governing equations is typically less than 0.001%. The obtained results include velocity vectors, turbulence intensities and wall heat transfer distributions in combusors. Examples of large industrial furnaces are shown and are in good agreement with available measurements in the open literature. One may conclude that flow patterns, turbulence and heat transfer in combustors are strongly affected by the inlet swirl, inlet momentum ratios, combustor geometry. Both micro and macro mixing levels are influential. The present modeling capabilities can adequately predict the local flow pattern and heat transfer characteristics in Complex combustors. Proper representation of the heat transfer and radiation flux is important in adequate predictions of large furnace performance.
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Wang, Liping, and Don Beeson. "Valuable Theoretical Lessons Learned From the Application of Metamodels to a Variety of Industrial Problems." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-87616.

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Metamodeling techniques are now being widely used by many industries to replace complex and expensive simulation models so that optimization and probabilistic design studies can be done in a more practical and affordable way. Due to the complexity of many engineering design systems and to the lack of a deep understanding of the metamodeling methods by engineers, many questions related to metamodeling accuracy, confidence, robustness, efficiency, etc. are now frequently asked. The need to establish comprehensive guidelines for engineers to correctly and efficiently apply metamodeling methods to their optimization and probabilistic design tasks is becoming more and more important. Based upon experiences and lessons learned at General Electric in recent years, this paper discusses important metamodeling mathematical details and addresses several common issues engineers are likely to encounter when applying metamodeling techniques to realistic engineering problems. The paper provides detailed guidelines on the best practices of metamodel creation and its application to the design process. Many results from benchmark examples and real applications are included to justify certain guidelines and rules of thumb.
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Rudobashta, Stanislav P. "Efficiency of mass exchange processes in systems with solid phase (drying, adsorption, extraction)." In INTERNATIONAL SCIENTIFIC-TECHNICAL SYMPOSIUM (ISTS) «IMPROVING ENERGY AND RESOURCE-EFFICIENT AND ENVIRONMENTAL SAFETY OF PROCESSES AND DEVICES IN CHEMICAL AND RELATED INDUSTRIES». The Kosygin State University of Russia, 2021. http://dx.doi.org/10.37816/eeste-2021-p-80-88.

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On specific examples, the possibilities of increasing the efficiency (in the broad sense of the word) of the specified mass transfer processes at the present stage are considered - through the use of modern methods of mathematical modeling and kinetic calculation of devices, intensification, energy and resource conservation, preservation or even improvement of the quality indicators of processed materials, solutions to environmental
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Drapkin, Dimitri, Franz Kores, and Thomas Polklas. "Integration of an Automatic Optimizer Functionality Into the Design Process of Industrial Steam Turbines." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68841.

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Industrial steam turbines are mostly tailor made machinery, varying in a wide range of specifications. This feature introduces high requirements on the design process which has to be flexible, efficient and fast at the same time. Given live steam and design parameters as input, the geometry corresponding to the valid design scheme can be calculated together with the required thermodynamic, aerodynamic and mechanical characteristics. By variation of design parameters a design may be achieved which optimizes both, efficiency and cost. The optimization task is formulated mathematically, e.g. crucial optimization parameters, criteria for evaluation of different designs and other required constraints are selected. The structure of the resulting optimization problem is analyzed. Based on this analysis a modular optimization system design is proposed. The choice of Genetic Algorithms and Adaptive Particle Swarm Optimizer as optimization methods is discussed, recommendations for their proper use are given. A bicriterial optimization approach for a simultaneous optimization of efficiency and cost is developed.
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Bremer, Claus. "Automated Repair and Overhaul of Aero-Engine and Industrial Gas Turbine Components." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68193.

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Automated repair processes and adaptive machining strategies constitute an important task in today’s aero-engine and industrial gas turbine maintenance, repair and overhaul (MRO) industry (figure 1). Currently, the repair of blisks is a central issue whenever consideration is given to replacing bladed stages with blisks; the feasibility of such a step hinges on the available capabilities for automated repair. The standard repairs are also influenced by these innovative approaches. Today, most of the processes for the MRO of engine components are carried out manually. In many cases, however, manual operations are not satisfactory from the point of view of costs and reliability. The MRO steps which are especially time consuming and require a high degree of accuracy are inspection, welding, milling and polishing. Adaptive machining methods can compensate for part-to-part variation as well as inaccurate clamping positions and keep the tolerances for the actual parts within a minimal range. The geometrical adaptation of the NC paths to the actual part geometry is performed automatically using in-process measuring techniques, mathematical best-fit strategies and adaptation methods. With the present state-of-the-art, it is possible to automate MRO work steps currently performed manually and to reduce costs and throughput times while boosting quality and precision. A further important aspect for the automation of component repair is the data management which should constitute the core of automated overhaul systems. As part of an innovative data management solution, the single repair process modules are integrated to build an automated repair cell for aero engine components. Furthermore, it is possible to establish “virtual” MRO workshops. The data management system generates a data set for each individual component and handles the logistics of the components and the accompanying data sets. As result, different MRO processes can be carried out at different facilities without loss of information, efficiency or quality. In addition, the approach described supports efficient life cycle monitoring.
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Gulin, S. V., and A. G. Pirkin. "FEATURES OF BUSINESS-PROCESSES IN THE CREATION OF ELECTROTECHNOLOGICAL SYSTEMS FOR THE AGRICULTURAL INDUSTRIAL COMPLEX." In INNOVATIVE TECHNOLOGIES IN SCIENCE AND EDUCATION. DSTU-Print, 2020. http://dx.doi.org/10.23947/itno.2020.357-362.

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This article offers a universal methodology for the design, creation and operation of complex electrotechnological systems. This methodology is based on a system-process approach to business modeling. The article provides a detailed description of all private business processes that provide a full cycle of business engineering, and offers a General mathematical expression for a comprehensive assessment of the effectiveness of the business engineering process. The proposed methodology has been tested on the example of designing, creating and operating vegetation climate systems (VCS). This example shows that it is possible to conduct quite serious scientific research at the intersection of plant physiology and electric power engineering, which allows us to create modern self-adjusting systems for automatic microclimate control when growing plants. Application of engineering methods allows to increase the efficiency of development of information systems for automatic control of parameters of the most important physiological processes (photosynthesis, transpiration, etc.) in plants under the influence of environmental factors. The article outlines the prospects for the development of the subject area of engineering in the direction of solving specific problems to integrated energy engineering, and the energy business - from trading individual services to trading models and technologies.
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Reports on the topic "Industrial efficiency – Mathematical methods"

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Kurnik, Charles W., Dakers Gowans, and Chad Telarico. Chapter 2: Commercial and Industrial Lighting Evaluation Protocol. The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures. Office of Scientific and Technical Information (OSTI), November 2017. http://dx.doi.org/10.2172/1408084.

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Kurnik, Charles W., and Stephen Carlson. Chapter 3: Commercial and Industrial Lighting Controls Evaluation Protocol. The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures. Office of Scientific and Technical Information (OSTI), October 2017. http://dx.doi.org/10.2172/1398876.

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Kuropiatnyk, D. I. Actuality of the problem of parametric identification of a mathematical model. [б. в.], December 2018. http://dx.doi.org/10.31812/123456789/2885.

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The purpose of the article is to study the possibilities of increasing the efficiency of a mathematical model by identifying the parameters of an object. A key factor for parametrization can be called the consideration of properties of the values of the model at a specific time point, which allows a deeper analysis of data dependencies and correlation between them. However, such a technique does not always work, because in advance it is impossible to predict that the parameters can be substantially optimized. In addition, it is necessary to take into account the fact that minimization reduces the values of parameters without taking into account their real physical properties. The correctness of the final values will be based on dynamically selected parameters, which allows you to modify the terms of use of the system in real time. In the development process, the values of experimentally obtained data with the model are compared, which allows you to understand the accuracy of minimization. When choosing the most relevant parameters, various minimization functions are used, which provides an opportunity to cover a wide range of theoretical initial situations. Verification of the correctness of the decision is carried out with the help of a quality function, which can identify the accuracy and correctness of the optimized parameters. It is possible to choose different types of functional quality, depending on the characteristics of the initial data. The presence of such tools during parametrization allows for varied analysis of the model, testing it on various algorithms, data volumes and conditions of guaranteed convergence of functional methods.
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Shokaliuk, Svitlana V., Yelyzaveta Yu Bohunenko, Iryna V. Lovianova, and Mariya P. Shyshkina. Technologies of distance learning for programming basics lessons on the principles of integrated development of key competences. [б. в.], July 2020. http://dx.doi.org/10.31812/123456789/3888.

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In the era of the fourth industrial revolution – Industry 4.0 – developing key competences (digital, multilingual and mathematical competences in particular) is of paramount importance. The purpose of this work is to investigate the content of key competences of a secondary school student and to develop a method of teaching for the integrated development of multilingual and mathematical competences in the process of teaching Programming Basics with the help of distant technologies. The objectives of the research include generalizing and systematizing theoretical data on the structure and the content of key competences and the potential of informatics lessons for the development of separate components of multilingual and mathematical competences; generalizing and systematizing theoretical data on the ways of arranging distant support for informatics learning, Programming Basics in particular; to investigate the content and the methods of teaching Programming Basics in 7th-11th grades; to develop the e-learning Moodle course using Python for Programming Basics on the principles of integrated approach to developing separate components of multilingual and mathematical competence with determining some methodical special features while using it. The object of the study is to teach informatics to junior high school and high school students. The subject of the study is the means and the methods of realizing distant support in the process of teaching Programming Basics using Python on the principles of an integrated approach to developing multilingual and mathematical competences.
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Modlo, Yevhenii O., Serhiy O. Semerikov, Stanislav L. Bondarevskyi, Stanislav T. Tolmachev, Oksana M. Markova, and Pavlo P. Nechypurenko. Methods of using mobile Internet devices in the formation of the general scientific component of bachelor in electromechanics competency in modeling of technical objects. [б. в.], February 2020. http://dx.doi.org/10.31812/123456789/3677.

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An analysis of the experience of professional training bachelors of electromechanics in Ukraine and abroad made it possible to determine that one of the leading trends in its modernization is the synergistic integration of various engineering branches (mechanical, electrical, electronic engineering and automation) in mechatronics for the purpose of design, manufacture, operation and maintenance electromechanical equipment. Teaching mechatronics provides for the meaningful integration of various disciplines of professional and practical training bachelors of electromechanics based on the concept of modeling and technological integration of various organizational forms and teaching methods based on the concept of mobility. Within this approach, the leading learning tools of bachelors of electromechanics are mobile Internet devices (MID) – a multimedia mobile devices that provide wireless access to information and communication Internet services for collecting, organizing, storing, processing, transmitting, presenting all kinds of messages and data. The authors reveals the main possibilities of using MID in learning to ensure equal access to education, personalized learning, instant feedback and evaluating learning outcomes, mobile learning, productive use of time spent in classrooms, creating mobile learning communities, support situated learning, development of continuous seamless learning, ensuring the gap between formal and informal learning, minimize educational disruption in conflict and disaster areas, assist learners with disabilities, improve the quality of the communication and the management of institution, and maximize the cost-efficiency. Bachelor of electromechanics competency in modeling of technical objects is a personal and vocational ability, which includes a system of knowledge, skills, experience in learning and research activities on modeling mechatronic systems and a positive value attitude towards it; bachelor of electromechanics should be ready and able to use methods and software/hardware modeling tools for processes analyzes, systems synthesis, evaluating their reliability and effectiveness for solving practical problems in professional field. The competency structure of the bachelor of electromechanics in the modeling of technical objects is reflected in three groups of competencies: general scientific, general professional and specialized professional. The implementation of the technique of using MID in learning bachelors of electromechanics in modeling of technical objects is the appropriate methodic of using, the component of which is partial methods for using MID in the formation of the general scientific component of the bachelor of electromechanics competency in modeling of technical objects, are disclosed by example academic disciplines “Higher mathematics”, “Computers and programming”, “Engineering mechanics”, “Electrical machines”. The leading tools of formation of the general scientific component of bachelor in electromechanics competency in modeling of technical objects are augmented reality mobile tools (to visualize the objects’ structure and modeling results), mobile computer mathematical systems (universal tools used at all stages of modeling learning), cloud based spreadsheets (as modeling tools) and text editors (to make the program description of model), mobile computer-aided design systems (to create and view the physical properties of models of technical objects) and mobile communication tools (to organize a joint activity in modeling).
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