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Journal articles on the topic 'Efficiency calculation'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Ershov, Sergey, Vladimir Frolov, Alexander Nikolaev, Vladimir Galaktionov, and Alexey Voloboy. "Efficiency Investigation of Langevin Monte Carlo Ray Tracing." Mathematics 12, no. 21 (2024): 3437. http://dx.doi.org/10.3390/math12213437.

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The main computationally expensive task of realistic computer graphics is the calculation of global illumination. Currently, most of the lighting simulation methods are based on various types of Monte Carlo ray tracing. One of them, the Langevin Monte Carlo ray tracing, generates samples using the time series of a system of the Langevin dynamics. The method seems to be very promising for calculating the global illumination. However, it remains poorly studied, while its analysis could significantly speed up the calculations without losing the quality of the result. In our work, we analyzed the

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2

Bychkova, Gul'fira. "DURATION: METHODOLOGICAL ASPECT OF BUSINESS PLANNING." Scientific Papers Collection of the Angarsk State Technical University 2022, no. 1 (2022): 281–84. http://dx.doi.org/10.36629/2686-7788-2022-1-281-284.

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A duration calculation model has been developed and tested, containing algorithms for calculating indicators in Excel format, providing acceleration and comparability of calculations for several business plan options from the standpoint of project efficiency and risk

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3

Kazakov, A. A., V. V. Chelepov, and R. G. Ramazanov. "Preculaatities of evaluation of the effectiveness of flow deflection technologies." Moscow University Bulletin. Series 4. Geology, no. 6 (December 28, 2018): 93–101. http://dx.doi.org/10.33623/0579-9406-2018-6-93-101.

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The features of evaluation of the effectiveness of flow deflection technologies of enhanced oil recovery methods. It is shown that the effect of zeroing component intensification of fluid withdrawal leads to an overestimation of the effect of flow deflection technology (PRP). Used in oil companies practice PRP efficiency calculation, which consists in calculating the effect on each production well responsive to subsequent summation effects, leads to the selective taking into account only the positive components of PRP effect. Negative constituents — not taken into account and it brings overest

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4

Wang, Xiangyang, and Zisen Mao. "Heliostat Field Optical Efficiency Calculation." Journal of Physics: Conference Series 2890, no. 1 (2024): 012039. http://dx.doi.org/10.1088/1742-6596/2890/1/012039.

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Abstract The solar power tower technology has the advantages of green pollution-free and stable power generation, which has gradually attracted extensive attention from researchers in recent years. The quick computation of the solar heliostat field’s optical efficiency carries substantial potential for refining the design of the heliostat field, thereby enhancing the efficiency of power generation. Based on the parallel light hypothesis, we propose a fast algorithm designed to compute the optical efficiency of heliostat field. The algorithm takes into account various optical loss terms such as

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Kuznetsov, Oleg, Viktor Chepurnov, Albina Gurskaya, Mikhail Dolgopolov, and Sali Radzhapov. "C-beta energy converter efficiency modeling." EPJ Web of Conferences 222 (2019): 02012. http://dx.doi.org/10.1051/epjconf/201922202012.

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To construct beta converters with maximum efficiency it is necessary to carry out the theoretical calculation in order to determine their optimal parameters - the geometry of the structure, the thickness of the deposition of the radioisotope layer, the depth and the width of the p-n junction, and others. To date, many different theoretical models and calculations methods had been proposed. There are fairly simple theoretical models based on the Bethe-Bloch formula and the calculation of the rate of generation of electron-hole pairs, and on calculations by equivalent circuits. Also, the Monte-C

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Brdulak, Jacek, and Bartosz Zakrzewski. "Methods for Calculating the Efficiency of Logistics Centres." Archives of Transport 27-28, no. 3-4 (2013): 25–43. http://dx.doi.org/10.5604/01.3001.0004.0106.

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Changes in the organization of the transport system, such as building a logistics centre, bring them uncertainties linked with the risk of investments failure. One of the first steps of creating such a logistics centre is carrying out a thorough economic analysis. Localization and organizational analysis and then the assessment of the functioning of the future centre is possible mainly thanks to the economic effectiveness calculation, which takes into account the expenditure, the operating costs, and benefits of creating a logistics centre in a selected place and gives the answer concerning th

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Tailakova, Anna, and Alexander Pimonov. "Optimization Methods and Algorithms for Calculating the Construction of Non-Rigid Pavement for Technological Quarries Roads." E3S Web of Conferences 134 (2019): 01007. http://dx.doi.org/10.1051/e3sconf/201913401007.

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Previously developed by the authors of the optimization model for calculating the construction of non-rigid pavement of public roads is proposed to be used for the calculation of the construction of pavement technological career roads. The article describes the optimization methods and algorithms for calculating the construction of pavement. Possibilities of using methods of coordinate-wise descent, multi-start, dynamic programming for the selection of the optimal construction of pavement are presented. Application of genetic algorithms for the decision of an optimization problem of calculatio

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Yu, Jiaxin, Weijian Chen, Long Xia, and Ning Guan. "Combined Euler-Lagrange Method for 3D Large Droplet Collection Efficiency Prediction." Journal of Physics: Conference Series 3056, no. 1 (2025): 012007. https://doi.org/10.1088/1742-6596/3056/1/012007.

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Abstract In this paper, we propose a combined Euler-Lagrange method for calculating large three-dimensional water droplets. We use the Euler method to determine the initial droplet collection efficiency and then write UDF code to process the splash and obtain the collection efficiency after splashing. The re-entry calculation for the droplets is done using the DPM approach. We utilize a three-dimensional model of the DLR-F6 wing-body combination to test the effectiveness of this method, while also comparing results calculated using FENSAP. The results show that the splashing results processed

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9

ShiWeidong, Tian Fei, Zhang Desheng, Guo Yanlei, Jiang Hua, and Zhang Guangjian. "Efficiency Calculation of Submersible Mixer." INTERNATIONAL JOURNAL ON Advances in Information Sciences and Service Sciences 4, no. 19 (2012): 421–28. http://dx.doi.org/10.4156/aiss.vol4.issue19.52.

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10

Tupov, Vladimir, and O. Matasova. "Calculation of Acoustic Efficiency of Exhaust Silencers for Automotive Internal Combustion Engines." Safety in Technosphere 9, no. 3 (2021): 41–47. http://dx.doi.org/10.12737/1998-071x-2021-9-3-41-47.

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Insertion losses as the main characteristic that mathematically describes the acoustic efficiency of a noise silencer has been considered. This characteristic shows the reduction of noise generated by its source, in particular by the internal combustion engine’s exhaust system, at the control point as a silencer use result. Has been presented a mathematical description of the insertion losses, and have been considered parameters necessary for calculating this characteristic. Has been demonstrated the analytical dependence of impedance for the sound emission by the exhaust system’s end hole fro

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11

KOSICHENKO, YU М. "UNIVERSAL METHOD FOR CALCULATING WATER PERMEABILITY OF ANTIFILTRATION LININGS WITH POLYMER GEOMEMBRANES." Prirodoobustrojstvo, no. 4 (2020): 6–13. http://dx.doi.org/10.26897/1997-6011-2020-4-6-13.

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There is considered a method for calculating water permeability of the main types of channel linings using geosynthetic materials – concrete film and soil film with polymer geomembrane and geotextile. During a long-term operation of irrigation channels it is necessary to carry out a quantitative assessment of water permeability of the linings, the results of which find filtration losses and determine the calculated efficiency. Modern anti-filtration channel linings made of geosynthetic materials can provide a high technical efficiency and durability of the lining. Based on the previously obtai

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12

Grishin, A. I., A. A. Sheipak, and V. N. Chicheryukin. "Calculation of linear type peristaltic pump efficiency." Izvestiya MGTU MAMI 9, no. 3-1 (2015): 22–32. http://dx.doi.org/10.17816/2074-0530-67173.

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The method for calculation the theoretical value of efficiency of peristaltic type pump with linear disposition of working tube was developed. To determine the deformation of compressible tube the method of finite differences was used. The resulting system of equations was solved by the method of lower relaxation. Experimental research was also carried out. It is shown that the efficiency val- ues calculated by the developed technique are much larger than those, which are obtained experi-mentally; consequently this method is suitable only for approximate preliminary calculations.

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13

Chen, Junjie, Jinyuan Zhao, Jin Peng, Qiancheng Chen, and Jinnan Huang. "Heliostat distribution optimization model based on simulated annealing algorithm." Scientific Innovation in Asia 1, no. 1 (2023): 27–34. http://dx.doi.org/10.58567/sia01010005.

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In order to solve the problem of calculating the efficiency of the heliostat distribution, based on the knowledge of physics and astronomy, this paper establishes a variety of physical parameter calculation models, comprehensively considers the relevant data and constraints of the heliostat field, solves and calculates the parameters of the heliostat field, and calculates the optical efficiency and output thermal power of the heliostat according to the relevant calculation formulas. In order to optimize the design of heliostat field, the optimal results of each parameter of heliostat field are

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Hrytsenko, Кostiantyn, and Avhusta Hrytsenko. "Payments flows system-dynamic model for assessing the efficiency of leasing operations." Economic Analysis, no. 32(4) (2022): 115–26. http://dx.doi.org/10.35774/econa2022.04.115.

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Introduction. The relevance of the financial leasing effeciency issues for Ukraine is due to the fact that its economic and social development is largely influenced by the amount of investment in the fixed assets of enterprises, which ensures their competitiveness, contributes to the development of small and medium-sized businesses and the creation of new jobs. The main factor in the attractiveness of leasing operations for the lessee is the amount of leasing payments. The efficiency of leasing operations for the lessee can be determined by comparing the total amount paid under the leasing agr

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Berezovka, Sergei V. "DEVELOPMENT OF A UNIVERSAL UNIT ECONOMICS CALCULATION ALGORITHM: PROBLEM STATEMENT AND SOLUTIONS." EKONOMIKA I UPRAVLENIE: PROBLEMY, RESHENIYA 7/4, no. 147 (2024): 20–30. http://dx.doi.org/10.36871/ek.up.p.r.2024.07.04.003.

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The research is devoted to the development of methodological proposals for the creation of a universal algorithm for calculating unit economics, invariantly applicable in various fields of activity. A theoretical analysis is carried out, the basics and problems of universalization of unit economics in business analysis are characterized, the difficulties and specific features that companies face when carrying out these calculations are revealed. The ways of ensuring the universality of the unit economy are identified, which involve the development of algorithms that take into account general b

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16

Bekkulov, B., A. Karimov, and U. Kosimov. "Substantiation of device technical parameters of drying reel drive." Bulletin of Science and Practice 4, no. 7 (2018): 210–15. https://doi.org/10.5281/zenodo.1312215.

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The method of calculating the main parameters and the kinematic calculation of the developed device for driving the drying drum for drying the grain is proposed. Calculations were performed in which the power of the electric motor, the length of the drying drum and other parameters were taken into account. All this allowed increasing the efficiency of the drying apparatus. Similar calculations can be used for other drying devices with other parameters.

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17

Klevets, Ksenia, Alexander Dvoretsky, and Alexander Spiridonov. "Eco-efficiency of passive solar heating." E3S Web of Conferences 138 (2019): 01018. http://dx.doi.org/10.1051/e3sconf/201913801018.

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The article presents calculations of the energy efficiency of direct solar heating and sunspace, located on the building facades of various orientations, in the climatic conditions of the southern coast of Crimea. The share of compensation for heat losses due to passive solar heating has been determined. The calculation of the environmental effect of passive solar heating systems has been done.

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18

Shcherbakova, N. A., and V. A. Shcherbakov. "RATING SYSTEM OF FINANCIAL EFFICIENCY OF INDUSTRIAL ENTERPRISES IN PROVIDING THE SUSTAINABILITY OF THE RUSSIAN ECONOMY." Economics Profession Business, no. 4 (December 10, 2021): 111–17. http://dx.doi.org/10.14258/epb202161.

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The article shows the necessity and importance of forming a rating of financial performance of companies. The goals and problems of rating companies according to the criterion of financial efficiency are formulated. The indicator (Tobin’s coefficient) used in world practice for rating companies in terms of financial efficiency is presented and an algorithm for its calculation in relation to the peculiarities of Russian financial statements is presented. The financial performance rating is based on the methodology for assessing the company’s value. The main inaccuracies that are present in the

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19

Arifin, Muhammad Faizal Ardhiansyah, Dianita Putri Oktaviani, Agung Budiwirawan, and Luke Timor Ilingono. "Modeling and Analysis of Column Formwork Construction Components Using Dynamo Revit (Study Case : Project Construction of Building 2 Hermina Hospital Pandanaran)." Aceh International Journal of Science and Technology 13, no. 3 (2025): 233–46. https://doi.org/10.13170/aijst.13.3.42925.

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The construction industry in Indonesia continues to experience rapid growth. However, there are still challenges in implementing Building Information Modeling (BIM) technology, particularly in the volume calculation of formwork activity. BIM for formwork activity is generally utilized to calculate the surface area of formwork. Moreover, cast-in-place concrete formwork has many components with different utilities; thus, it is difficult to manage. Therefore, this study endeavors to expand BIM by employing BIM to automate the calculation of the formwork components. This research aims to utilize A

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20

Kelley, Jason, and Chad Higgins. "Computational efficiency for the surface renewal method." Atmospheric Measurement Techniques 11, no. 4 (2018): 2151–58. http://dx.doi.org/10.5194/amt-11-2151-2018.

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Abstract. Measuring surface fluxes using the surface renewal (SR) method requires programmatic algorithms for tabulation, algebraic calculation, and data quality control. A number of different methods have been published describing automated calibration of SR parameters. Because the SR method utilizes high-frequency (10 Hz+) measurements, some steps in the flux calculation are computationally expensive, especially when automating SR to perform many iterations of these calculations. Several new algorithms were written that perform the required calculations more efficiently and rapidly, and that

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21

Marchenko, Maksim, Oksana Pokrovskaya, and Vladimir yerbakov. "Development of Automated Algorithm for Railway Line Capacity Calculation." Proceedings of Petersburg Transport University 19, no. 4 (2022): 876–88. http://dx.doi.org/10.20295/1815-588x-2022-4-876-888.

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Purpose: To develop an automated algorithm using simulation modeling tools that allows calculating actual capacity of railway line with mixed traffic. Analytical formulas underlie the algorithm. Results: The algorithm features the use of simulation modeling tools and taking into account of the same name coefficient. The application of the given software product will allow to raise the efficiency and accuracy of actual capacity calculation accuracy. The data, obtained during the simulation, were compared to the data in the timetable, their discrepancy was revealed which basis on, simulation mod

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22

Liu, Yue Xian, and Nan Zhe Zhang. "The Calculating Benchmark Selection and its Skills in Chemical Engineering Calculation." Advanced Materials Research 1033-1034 (October 2014): 501–4. http://dx.doi.org/10.4028/www.scientific.net/amr.1033-1034.501.

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Chemical engineering calculation is the base of chemical engineering science, the material balance and the energy balance are the most basic and important contents in chemical engineering calculation. The diversification and the importance of calculating benchmark in chemical engineering calculation were explained by an example about the material balance; the basic principles, some specific methods and skills for the calculating benchmark selection were pointed out. In short, the proper selection of calculating benchmark in chemical engineering calculation can not only simplify the calculation

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23

CHERNOSVITOV, Mikhail D. "ENERGY EFFICIENCY OF INTEGRATED MANAGEMENT OF WORK BOOSTER PUMP." Urban construction and architecture 3, no. 4S (2013): 96–99. http://dx.doi.org/10.17673/vestnik.2013.s4.26.

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The theoretical calculations, the raw data, graphs, calculation results and conclusions to reduce energy consumption by using integral control of the existing booster pump station versus unregulated work and that the stabilization of the output pressure of the pump station.

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24

Zhang, Zhentao, Yunjia Zhang, and Huanxin Xiao. "A Method for Calculating the Optical Efficiency of Solar Tower Heliostats." Academic Journal of Science and Technology 8, no. 1 (2023): 29–33. http://dx.doi.org/10.54097/ajst.v8i1.13563.

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Solar tower heliostat is one of the highlights of China's new energy development in recent years, the Optical Efficiency is an important index for evaluating the field distribution of heliostat, but the calculation of Shadow Blocking Efficiency and Truncation Efficiency is more complicated. In this paper, through the ray tracing method, based on the idea of Monte Carlo algorithm, combined with the calculation method of spatial analytic geometry, a more complete and operable method of calculating Optical Efficiency is proposed.

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Gazalba Imaduddin Sholeh. "Efektivitas dan Akurasi Metode Manual dan Bim dalam Perhitungan Volume Pile Cap dan Pembesian Bangunan Gedung." Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil 3, no. 2 (2025): 89–101. https://doi.org/10.61132/konstruksi.v3i2.786.

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In the modern construction industry, accuracy and efficiency in volume calculations are crucial aspects of project success. This study compares two methods for calculating the volume of pile caps and reinforcement: the manual method and the Building Information Modeling (BIM)-based method. The manual method has long been used but has limitations in terms of time efficiency and a higher risk of errors. In contrast, the BIM method offers more accurate and efficient calculations through software-based digital modeling. This study employs a descriptive-comparative quantitative approach by analyzin

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26

Nurlaily Charea, Wanda, and Nafisatus Sania Irbah. "Analysis of Volume Calculations for Clay Mining Excavation Plans Using The Surface to Surface Method." IOP Conference Series: Earth and Environmental Science 1418, no. 1 (2024): 012076. https://doi.org/10.1088/1755-1315/1418/1/012076.

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Abstract Calculating the volume of excavation is generally a large and complex problem for a project in an industry. This is because the accuracy of the volume calculation affects the project budget for the project provider. Calculating the excavation volume is important aspect of mine planning since it serves as a guide for hitting production goals in terms of both profit and technical success. The method commonly used in calculating excavation volume is surface to surface. To overcome this problem, a method or technique is needed to calculate the excavation volume that can provide accurate c

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Wahyudi, Dafa Prabaswara, and Agus Riyanto. "Akurasi Perhitungan 3D Volume Galian Proyek Pembangunan Jalan Tepus-Jerukwudel II Menggunakan GIS." Jurnal Manajemen Teknologi & Teknik Sipil 6, no. 1 (2023): 71–83. http://dx.doi.org/10.30737/jurmateks.v6i1.4734.

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Calculation of excavation volume is one of the important activities in earthworks. Volume calculations are still done manually for some projects using Microsoft Office Excel. These calculations are time-consuming and prone to errors. The use of DTM-based 3D models in calculating excavation volume is an important thing that needs to be done for work efficiency. This study aims to determine the accuracy of the 3D-based Digital Terrain Method (DTM) in calculating excavation volume. The data used comes from a topographic survey of 64 points. Volume calculations were performed using the 2D Average

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Marcinkowski, Mateusz, and Dawid Taler. "Calculating the Efficiency of Complex-Shaped Fins." Energies 14, no. 3 (2021): 577. http://dx.doi.org/10.3390/en14030577.

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Calculation of fin efficiency is necessary for the design of heat exchangers. This efficiency can be calculated for individual finned tubes or continuous fins. Continuous fins are mostly used in plate-fin and tube heat exchangers (PFTHEs). In most cases, the basic elements of those PFTHEs are circular, oval or flattened pipes, which contain circular or polygonal fins. Continuous fins, as can be observed in PFTHEs, are divided into virtual fins. Those fins can have a rectangular shape for an inline arrangement of pipes or a hexagonal shape for a staggered arrangement of pipes. This research sho

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Canivez, Gary L., and Marley W. Watkins. "Automated calculation of diagnostic efficiency statistics." Behavior Research Methods, Instruments, & Computers 28, no. 1 (1996): 132–33. http://dx.doi.org/10.3758/bf03203650.

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Dong, Min, Jiaming Guo, and Hui Xu. "Simulation calculation of cyclone separation efficiency." Journal of Physics: Conference Series 2835, no. 1 (2024): 012069. http://dx.doi.org/10.1088/1742-6596/2835/1/012069.

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Abstract In this paper, the pure flow field distribution of hydrocyclone and the separation efficiency of solid particles were studied by fluent software, and the separation efficiency of solid particles with different diameters was compared. The numerical simulation of the pure flow field and the separation efficiency of the cyclone hydrocyclone provides a theoretical basis for the structural optimization of the cyclone hydrocyclone, which is beneficial to improving the separation efficiency of the cyclone separator.

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Zhou, Shuwei, and Baolin Liu. "Limit calculation of LED luminous efficiency." Journal of Physics: Conference Series 2849, no. 1 (2024): 012037. http://dx.doi.org/10.1088/1742-6596/2849/1/012037.

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Abstract LED is widely used due to its many advantages. As the fourth generation lighting source, it has always been limited by its luminous efficiency. How to improve the luminous efficiency of LED is one of the current research hotspots. The paper aims to conduct a limited analysis of the luminous efficiency of LED and provide theoretical support for LED luminescence research. Firstly, theoretical analysis and derivation were conducted on the luminous efficiency of LED, and it was found that the main factor determining its luminous efficiency is the light extraction efficiency of LED. Then,

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Broda, Ryszard, Krzysztof Pochwalski, and Tomasz Radoszewski. "Calculation of liquid-scintillation detector efficiency." International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes 39, no. 2 (1988): 159–64. http://dx.doi.org/10.1016/0883-2889(88)90161-x.

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Abdul Rahman, Ikhsan, and Efi Susanti. "ANALISIS VALUE FOR MONEY PADA KINERJA ANGGARAN REALISASI DINAS SOSIAL KABUPATEN BENGKALIS PROVINSI RIAU." Journal Of Islamic Finance And Accounting Research 2, no. 1 FEBRUARI (2023): 74–81. http://dx.doi.org/10.25299/jafar.2023.10385.

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This study aims to analyze the performance accountability of the Bengkalis District Social Servicethrough the principle of value for money. The type of research used is qualitative. Data collectiontechniques used are documentation and interviews. The data obtained are in the form of Performance Reports of Government Agencies of the Bengkalis Regency Social Service in 2020 and 2021. The results of this study indicate that in 2020 the economic calculation with a ratio value of 97.12% is categorized as economic, the efficiency calculation with a ratio value of 102.79% is said to be efficient. , a

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Maria Donaines Bevinuresi, Antonius Philipus Kurniawan, and Cicilia Ayu Wulandari Nuwa. "Pemanfaatan Sistem Informasi Gaji (SIMGAJI) dalam Perhitungan Tunjangan Keluarga Aparatur Sipil Negara di Kabupaten Sikka." Dharma Ekonomi 31, no. 2 (2024): 91–101. https://doi.org/10.59725/de.v31i2.148.

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This research focuses on the utilization of SIMGAJI in calculating family allowances where we can see whether the utilization is effective and efficient or not in using SIMGAJI so that it can be seen by calculating family allowances. To identify problems, this research uses qualitative research. Data collection techniques using interview techniques, observation, document studies. It can be concluded that the utilization of the Salary Information System (SIMGAJI) by PT. Taspen (Persero) for the calculation of family allowances for State Civil Apparatus (ASN) in Sikka Regency provides several si

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Ischenko, E. A., S. M. Fedorov, and I. A. Barannikov. "Methods of Electrodynamic Modelling for Reflector Antennas." Journal of Physics: Conference Series 2096, no. 1 (2021): 012009. http://dx.doi.org/10.1088/1742-6596/2096/1/012009.

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Abstract The article discusses methods for calculating the electromagnetic characteristics of reflector antennas based on the finite integration method, the method of moments, and the hybrid method. In the course of the study, a performance comparison of these methods in the process of calculating the reflector antenna characteristics was made. Comparison of the calculation efficiency was carried out using four computing devices. On the basis of the calculations, the graphs of the scattering matrix and the directional diagrams of the antenna under study were obtained

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Klevets, K. N., and Y. D. Gnevko. "EFFICIENCY OF USE OF SUN-PROTECTED DEVICES." Construction economic and environmental management, no. 2 (2020): 108–15. http://dx.doi.org/10.37279/2519-4453-2020-2-108-115.

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A model of a sun protection device for a window located on the southern facade in the city of Yalta is proposed. A formula for calculating heating gain taking into account shading is proposed, as well as a calculation option of the economic efficiency of a sun protection device. The energy and economic effectiveness of the sun protection device are calculated.

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Rembet, Jillsticia, Victorina Z. Tirayoh, and Meily Y. B. Kalalo. "Analisis penentuan harga pokok produksi menggunakan metode full costing dan variable costing dalam penetapan harga jual Sambal Roa Chef Kenneth (Studi pada UD Cinta Kasih Manado)." Manajemen Bisnis dan Keuangan Korporat 2, no. 2 (2024): 139–48. http://dx.doi.org/10.58784/mbkk.133.

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UD Cinta Kasih Manado is a business that processes and produces garfish chili sauce. UD Cinta Kasih is still calculating the cost of production in determining product selling prices in a simple way, not yet classifying costs according to cost elements. The aim of this study is to determine the calculation of the cost of production using full costing and variable costing methods in determining the selling price of “Sambal Roa” by Chef Kenneth. The method used is descriptive qualitative with data collection through interviews. The results show that the calculation of the cost of production accor

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BOGDANOV, A. D., and R. V. SOLOPOV. "COMPARATIVE ANALYSIS OF THE CALCULATION OF LIGHTING SYSTEMS OF VARIOUS TYPES BASED ON INDUSTRIAL PREMISES." Actual Issues Of Energy 3, no. 1 (2021): 009–13. http://dx.doi.org/10.25206/2686-6935-2021-3-1-9-13.

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At present, the issues of economy and energy efficiency are actual for organizations. One of the ar eas of ener gy saving is the optimization of the functioning of lighting systems. Lighting of premises of industrial enterprises with a long stay of people is the object of research in this article. Based on comparative calculations, this article shows the efficiency of using the most common configurations of lighting systems that pr ovide high-quality and economical illumination of workplaces that meet the requirements of construction, technical and sanitary regulatory documents, as well as the

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Mačkić, Ksenija, Ivana Bajić, Borivoj Pejić, et al. "Yield and Water Use Efficiency of Drip Irrigation of Pepper." Water 15, no. 16 (2023): 2891. http://dx.doi.org/10.3390/w15162891.

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Drip irrigation is gaining importance in mitigating the consequences of water scarcity even in regions with abundant rainfall. The transition from surface to subsurface drip irrigation is accompanied by numerous problems. To overcome these issues, shallow subsurface drip irrigation can be potentially used as an effective drought control tool that brings additional benefits compared to conventional surface drip irrigation techniques. This research investigated the effects of different calculations of daily crop water requirements, reference evapotranspiration (ETo), and pan evaporation (Eo) on

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Guskov, A. E., and D. V. Kosyakov. "National fractional calculations and evaluating organization’s science efficiency." Scientific and Technical Libraries 1, no. 9 (2020): 15–42. http://dx.doi.org/10.33186/1027-3689-2020-9-15-42.

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Russian science policy in 2012–2018 appeared to be efficient which is proved by increased number of Russian publications indexed by Web of Science and Scopus. Dubious publication practices on and out of the fringes of science ethics is the other side of the coin. One cannot deny the scale of these practices while it is hard to be estimated. This scientometric challenge may be met through the transfer from integer calculation to fractional one. The authors introduce the term “national fractional calculation” which enables to estimate objectively organizations’ and researchers’ contributions int

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Podgornovs, Andrejs, and Antons Sipovichs. "Electromechanical Battery EMB Mass Minimization taking into Account its Electrical Machines Rotor Energy." Electrical, Control and Communication Engineering 7, no. 1 (2014): 5–10. http://dx.doi.org/10.1515/ecce-2014-0017.

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Abstract In this paper the electromechanical battery (EMB) with synchronous machine is described. Theoretically, if electrical machines rotor stored energy is known, it is possible to reduce the flywheel mass of electromechanical battery. For example, the efficiency of energy recovery (kilowatt-hours out versus kilowatthours in) in nowadays appliances exceeds 95 % which is considerably better than of any electrochemical battery, such as lead-acid battery. For the rotor stored energy amount calculation, it is necessary to find all geometrical dimensions of the electrical machine. To achieve thi

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Vishnevskij, L. I., and A. R. Togunjac. "Multi-mode adaptive-pitch propeller and its efficiency in coaxial contrarotating propeller systems." Transactions of the Krylov State Research Centre 4, no. 402 (2022): 33–40. http://dx.doi.org/10.24937/2542-2324-2022-4-402-33-40.

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Object and purpose of research. This paper discusses possible applications of multi-mode adaptive-pitch propeller in coaxial contra-rotating propeller systems. The study compares efficiency calculation results for these propellers and their conventional FPP counterparts. The authors also give a design calculation layout for coaxial propellers as per hydrodynamic test diagrams for solitary FPPs, as well as demonstrate their hydrodynamic calculation. Calculation results confirm that multimode adaptive-pitch propellers may considerably increase the efficiency of a coaxial propeller system in high

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Perdana. Ts, Redho, Lia Cundari, Safaruddin Safaruddin, and Robiansyah Robiansyah. "EFFICIENCY ANALYSIS OF ROTARY KILN EQUIPMENT IN FACTORY II PT. SEMEN BATURAJA (PERSERO) Tbk. REVIEW OF THERMAL EFFICIENCY." Jurnal Multidisipliner Bharasumba 1, no. 04 (2022): 611–18. http://dx.doi.org/10.62668/bharasumba.v1i04.328.

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Semen Baturaja (Persero) Tbk. is a factory that produces cement as a raw material for construction for small to large scale. The cement industry is one of the industries that in the production process consumes a large amount of energy, the costs incurred for energy consumption in a cement factory range from 20% - 30% of the total cost of production. The largest energy requirement comes from the combustion process in the kiln. Rotary Kiln is the main equipment in the manufacture of cement which requires heat of combustion for the kilnker formation process. The main source of heat of combustion

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Liu, Xiulin, Jianyi Chen, Hao Cui, Xiao Ma, Hongbin Zhang, and Yongrui Shan. "Novel Efficiency Calculation Model Based on Fine Particle Tracking Behavior." Processes 12, no. 8 (2024): 1710. http://dx.doi.org/10.3390/pr12081710.

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The underflow entrainment of fine particles occurs during the hydrocyclone separation process, resulting in a “fishhook” effect on grade efficiency. Traditional efficiency models fail to address this phenomenon. This study examines the tracking behavior of fine particles, using variations in centrifugal settling velocity to characterize separation performance. The effect of this behavior on particle separation is quantified through a tracking coefficient for small particles and an entrainment coefficient for large particles, together forming a novel efficiency calculation model. The experiment

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Bedin, Boris, and Natalya Kovalevskaya. "Features of the Use of Capitalization Ratios to Assess the Economic Efficiency of Investments in Real Estate." Bulletin of Baikal State University 33, no. 2 (2023): 330–40. http://dx.doi.org/10.17150/2500-2759.2023.33(2).330-340.

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The article discusses some ways to assess the economic efficiency of investments in real estate. The initial premise of the study was the property of real estate, which consists in the variety of motives for its acquisition, which can lead to a change in the value of the same property, depending on the nature of its use. Currently, real estate is becoming a popular investment tool for many investors, including those who do not have deep economic knowledge. For this reason, such methods of assessing the economic efficiency of investments that require a minimum of initial data and require simpli

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Yu, Jiyang, Dan Huang, Wenjie Li, Xianjie Wang, and Xiaolong Shi. "Matrix Chain Multiplication and Equivalent Reduced-Order Parallel Calculation Method for a Robotic Arm." Applied Sciences 13, no. 3 (2023): 1931. http://dx.doi.org/10.3390/app13031931.

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Intelligence development has put forward increasing requirements of real-time planning and dynamic feedback in controlling robotic arms. It has become essential in engineering applications to complete the kinematics calculation of complex manipulators in real time. This paper proposes a matrix cascading multiplication equivalent reduced-order parallel computing method for the multiplication of homogeneous matrices in the process of forward and inverse kinematics solutions, which reduces the order of the matrix according to the distribution of zero vectors in the homogeneous matrix calculations

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Zhang, Yi Tong, Zhan Qi Hu, and Hong Li Zhang. "A Calculating Method of the Least Feeding Times in Cylinder Cam’s Grinding." Key Engineering Materials 359-360 (November 2007): 181–84. http://dx.doi.org/10.4028/www.scientific.net/kem.359-360.181.

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The accurate calculation and the approximate calculations of the cylinder cam’s curve enveloping surface in single-tool-position-compensation are compared. It is proved that the approximate formula is enough precision for engineering purpose. Based on the analyses for the approximate formula, the calculating method of the least feeding times of the multi-tool-position-compensation is proposed. This method provides theoretical foundation for complex surface’s high efficiency and great precision grinding as well as optimal machining control.

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Nikolaev, P. M. "Improving the Efficiency of Calculating B-splines in parallel Programming Tasks." Programmnaya Ingeneria 12, no. 5 (2021): 267–73. http://dx.doi.org/10.17587/prin.12.267-273.

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The use of parallel computing tools can significantly reduce the execution time of calculations in many engineering tasks. One of the main difficulties in the development of multithreaded programs remains the organization of simultaneous access from different threads to shared data. The most common solution to this problem is to use locking facilities when accessing shared data. There are a number of tasks where data sharing is not needed, but you need to synchronize access to a limited resource, such as a temporary buffer. In such tasks, there is no data exchange between different threads, b

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Eko Sarwono, Martin Choirul Fatah, and I. Made Indradjaja Marcus Brunner Brunner. "PERSAMAAN REGRESI LINIER BERGANDA UNTUK MEMPREDIKSI EFISIENSI BOILER." Jurnal Rekayasa Mesin 15, no. 2 (2024): 587–603. http://dx.doi.org/10.21776/jrm.v15i2.1179.

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Boiler efficiency calculation is crucial to determine the reliability of boiler performance. Generally, boiler efficiency is calculated by the heat loss method, which considers losses in the combustion process. The calculation consumes more time due to detailed procedure and analysis. This research aims to develop a multiple linear regression equation in predicting boiler efficiency based on performance test data from PLTU X unit 1. The equation was then validated with a classical assumption test, i.e. normality, linearity, multicollinearity, heteroscedasticity, autocorrelation, and hypothesis

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Norkulov, Bekhzod, Adkham Mamataliev, Umida Kurbanova, Shokhida Nazarova, Bobur Shodiev, and Iqboloy Raimova. "Increasing efficiency of flow energy damping with lateral water intake." E3S Web of Conferences 365 (2023): 03044. http://dx.doi.org/10.1051/e3sconf/202336503044.

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The paper presents the results of full-scale and experimental studies for applying a new design for damping the energy of the flow with a lateral water intake. In the article, the method for increasing the efficiency of flow energy damping with lateral water intake and a new calculation method have been improved. The proposed version of the calculation according to the method, compiled with several assumptions, demonstrated the possibility of using such a well and damper design with high operational reliability and the results aimed at damping the energy of the water flow of the lateral water

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