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Journal articles on the topic 'Parameters calculation'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Eliseev, Mikhail Semenovih, Ivan Ivanovich Eliseev, Dmitriy Alekseevich Rybalkin, and Aleksey Maksimovich Maradudin. "Calculation of a volumetric liquid dispenser." Agrarian Scientific Journal, no. 12 (December 15, 2019): 90–93. http://dx.doi.org/10.28983/asj.y2019i12pp90-93.

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The article considers the theoretical calculation of a volumetric liquid dispenser. As a result of the calculations, a formula was obtained that relates all the main parameters of the dispenser to the angular speed of rotation of the metering tank, which allows calculating design and operating parameters of the metering devices.

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2

Dudás, Zoltán. "Equations and Verification of New Diffusion Parameters." Materials Science Forum 589 (June 2008): 293–97. http://dx.doi.org/10.4028/www.scientific.net/msf.589.293.

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This document shows the equations and some calculation results of two new Diffusion parameters. The Diffusion parameters assist the calculation of different temperature or time values for equivalent diffusion processes. The Diffusion parameters include temperature dependent and temperature independent factors. The document shows that the introduced Diffusion parameter is suitable for the accurate calculations of the temperature and time values for equal simple diffusion processes. The document shows, that the frequently used Larson-Miller parameter (LMP) does not give accurate results if we use the temperature and time values of equal simple diffusion equations for the LMP calculations.

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3

Kmita-Fudalej, Gabriela, Włodzimierz Szewczyk, and Zbigniew Kołakowski. "Calculation of Honeycomb Paperboard Resistance to Edge Crush Test." Materials 13, no. 7 (April 6, 2020): 1706. http://dx.doi.org/10.3390/ma13071706.

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The article presents the method of calculating the edge crush test (ECT) of honeycomb paperboard. Calculations were made on the basis of mechanical properties of paper raw materials used for the production of cellular paperboard and geometrical parameters describing cellular paperboard. The presented method allows ECT calculation of honeycomb paperboard in the main directions in the paperboard plane; i.e., machine direction (MD) and cross direction (CD). The proposed method was verified by comparing the results of calculations with the results of ECT measurements of paperboard with different geometrical parameters made of different fibrous materials.

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4

Kolesnyk, Vasyl, and Volodymyr Orlyk. "Methods of Parameters Calculation for Wastes High-Temperature Plasma Processing." Chemistry & Chemical Technology 9, no. 1 (March 15, 2015): 85–89. http://dx.doi.org/10.23939/chcht09.01.085.

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5

VENDIN, SERGEY, SERGEY SOLOV’EV, STANISLAV KILIN, and ALEXEY YAKOVLEV. "CALCULATION OF CORONA DISCHARGE PARAMETERS FOR MULTI-WIRE LIGHTNING PROTECTION." Elektrotekhnologii i elektrooborudovanie v APK 4, no. 41 (December 2020): 17–28. http://dx.doi.org/10.22314/2658-4859-2020-67-4-17-28.

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The article presents the results of theoretical calculating the parameters of a corona discharge when protecting the territory of substations from direct lightning strikes using multi-drop lightning protection. The parameters of the corona discharge are important when calculating the energy losses in the wires of overhead power lines in bad weather. (Research purpose) The research purpose is in developing a computational model and analyze the processes of lightning protection of a substation by placing parallel grounded cables suspended on supports that are placed outside the substation territory. (Materials and methods) The solution is based on a well-known relation for a typical dipole model of a charged thundercloud cell. (Results and discussion) The article present the calculated theoretical dependences, mathematical formulation and algorithm for numerical calculation of the two-dimensional problem that form the basis for calculating multi-wire lightning protection, as well as the calculation results of cable lightning protection of a transformer substation based on two-dimensional numerical modeling and comparison of the results of calculations using analytical expressions with the results of two-dimensional numerical modeling. Despite the noticeable difference between the limit currents calculated by different methods, the difference between the average current between them is small compared to the currents themselves, so one can use its arithmetic mean to determine the actual current. (Conclusions) The obtained results allow to take into account changes in the parameters of the corona formed in the electric field of a thundercloud along its cable length due to its sag, since such changes in the input parameters have a noticeable effect on the corona process, in some cases it is more significant than the effect associated with the actual sag of the cables.

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6

Tokarev, Pavel N. "ANALYTICAL CALCULATION OF THE PARAMETERS." Russian Journal of Water Transport, no. 64 (August 29, 2020): 207–14. http://dx.doi.org/10.37890/jwt.vi64.112.

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The skipper must be well aware of the maneuverability of his vessel, as well as the capabilities of the ship's controls to perform a particular maneuver. In the» Information «about the parameters of turnability, which is available on the ship, there is no data on the performance of such an important maneuver as «turn in place», which is often used in a confined area of water. Some assumptions have been taken in this article and the solution of the system of equations of the motion of the vessel in relation to the considered maneuver is proposed. The author obtained analytical expressions for calculation of angular speed and the angle of turn of the vessel at the time of the maneuver of «acceleration», the rotation by inertia and active damping rotational inertia. Using the obtained expressions, the calculation of the parameters of the turnover of the project 507 ship was performed. Graphs of the dependence of the angular speed and the angle of rotation of the vessel on the maneuver time are given.

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7

Nikulicheva, O. N., V. P. Fadeeva, and V. A. Logvinenko. "Calculation of the kinetic parameters." Journal of Thermal Analysis 47, no. 6 (December 1996): 1629–38. http://dx.doi.org/10.1007/bf01980909.

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8

Khaimovich, A. I., and A. A. Stepanov. "Automated calculation of broaching parameters." Russian Engineering Research 35, no. 8 (August 2015): 615–16. http://dx.doi.org/10.3103/s1068798x15080079.

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9

Misra, S., and B. B. Deo. "Calculation of nonperturbative QCD parameters." Physical Review D 34, no. 1 (July 1, 1986): 254–57. http://dx.doi.org/10.1103/physrevd.34.254.

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10

Heidler, F., J. M. Cvetic, and B. V. Stanic. "Calculation of lightning current parameters." IEEE Transactions on Power Delivery 14, no. 2 (April 1999): 399–404. http://dx.doi.org/10.1109/61.754080.

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11

Wang, Hao Peng, Xiao Jing Li, and Jing Zhang. "Study on Inversion Surface Parameters of Remote-Sensing Information Serving Vegetation-Surface." Applied Mechanics and Materials 635-637 (September 2014): 914–17. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.914.

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The paper studied on the inversion surface parameters of remote-sensing information serving for vegetation surface. First, presented the inversion of surface temperature based on four parts: calculation of brightness temperatureyntax of L-systems, calculation of atmospheric transmissivity, calculation of surface emissivity, and D. Precision evaluation on inversion result. Secondly, calculating the atmospheric transmissivity .

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12

Ali, Sarwar H., and S. R. Saeed. "Theoretical Calculation of Different Ion Surface Interaction Parameters of Si Target." Journal of Zankoy Sulaimani - Part A 16, no. 1 (January 27, 2014): 37–44. http://dx.doi.org/10.17656/jzs.10283.

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13

Zhukeshov, А. М., B. М. Ibrаеv, Sh G. Giniyatova, B. М. Useinov, V. Ya Nikulin, A. T. Gabdullina, and A. U. Amrenova. "Parameters calculation and design of vacuum camera for «Plasma focus» facility." International Journal of Mathematics and Physics 7, no. 1 (2016): 137–40. http://dx.doi.org/10.26577/2218-7987-2016-7-1-137-140.

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14

Parashchuk, T., A. Zagorodnyuk, L. Nykyruy, B. Volochanska, and Т. Mazur. "Thermodynamic Parameters of Lead Sulfide Chrystals in the Cubic Phase." Journal of Vasyl Stefanyk Precarpathian National University 3, no. 1 (July 7, 2016): 15–22. http://dx.doi.org/10.15330/jpnu.3.1.15-22.

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Geometric and thermodynamic parameters of cubic PbS crystals were obtained using thecomputer calculations of the thermodynamic parameters within density functional theory methodDFT. Cluster models for the calculation based on the analysis of the crystal and electronicstructure. Temperature dependence of energy ΔE and enthalpy ΔH, Gibbs free energy ΔG, heatcapacity at constant pressure CP and constant volume CV, entropy ΔS were determined on thebasis of ab initio calculations of the crystal structure of molecular clusters. Analytical expressions oftemperature dependences of thermodynamic parameters which were approximated withquantum-chemical calculation points have been presented. Experimental results compared withtheoretically calculated data.

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15

SEBASTIANI, DANIEL. "AB-INITIO CALCULATIONS OF NMR PARAMETERS IN CONDENSED PHASES." Modern Physics Letters B 17, no. 25 (October 30, 2003): 1301–19. http://dx.doi.org/10.1142/s0217984903006372.

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We review the development of electronic structure methods for the calculation of nuclear magnetic resonance (NMR) properties in condensed matter over the last years. The key element is the extension of well-established approaches for the calculation of magnetic linear response to extended systems which are described under periodic boundary conditions. So far, two implementations have emerged which enable the calculation of NMR parameters within density functional theory in a pseudopotential plane wave scheme. We present the theoretical basis of the methods, further recent developments and a variety of selected applications. These applications are accompanied by comparisons with solid-state NMR experiments, exhibiting the strong impact of the symbiotic combination of high-level ab-initio calculations with experimental research.

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16

MELNYK, Oleksandr V., Svitlana V. SOVHIRA, Nataliia Yu DUSHECHKINA, Oleg B. AVRAMENKO, and Nataliia V. DUBOVA. "RAPID ASSESSMENT OF CHEMICAL CONTAMINATION PARAMETERS." Periódico Tchê Química 17, no. 35 (July 20, 2020): 1084–95. http://dx.doi.org/10.52571/ptq.v17.n35.2020.89_melnyk_pgs_1084_1095.pdf.

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The article describes a chemical hazard that can adversely affect the environment and humans in the event of accidents at high-risk facilities, lead to man-made pollution, large casualties and deaths. The existing methods of assessment of the effects of chemical contamination were analysed. The toxic properties of poisonous substances (PSs) have been revealed. The calculation algorithm has been presented and the technique for the prediction of the chemical situation after the release of explosive or emergency spills, highly toxic substances (HTS) into the environments has been disclosed. The sequence of solution calculation of the estimation of chemical parameters problem using conditional initial data has been shown. A computer program has been developed to handle the parameters of chemical contamination and to calculate losses among working personnel and residents who may end up in the accident zone of chemical industry facilities or into the environment (PS, HTS). The analysis of the calculations without the use of a computer program for processing chemical parameters of contamination and using it confirms the reliability of its design based on the Microsoft Visual Studio software (Visual C#). The method of calculation and estimation of a chemical situation after accidents and destruction at chemical industry facilities has been offered. The practical application of the developed computer program has been described, which enables the specialists in the field of civil protection (CP) to make calculations more quickly to determine the degree of vertical stability of air, depth and area of distribution of chemical cloud, time of reaching the settlement, losses of both working personnel and population, more promptly to make decisions both in peacetime and in a special period. Conclusions were made regarding the calculations performed and the results obtained when solving the problems of chemical situation estimation using modern technologies.

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17

Gabruk, V. I., V. V. Kudakaev, L. A. Gabruk, and A. N. Boitsov. "Methоd of rigging parameters calculation for midwater trawls." Izvestiya TINRO 195 (December 27, 2018): 244–52. http://dx.doi.org/10.26428/1606-9919-2018-195-244-252.

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The rigging parameters calculation for midwater trawls are discussed with description of numerical model for calculating the parameters of trawl boards, hydrodynamic kites, and dispersed and concentrated weights which provide the designed values of horizontal and vertical opening of the trawl mouth. A distinctive feature of the proposed technique is a systematic approach: the trawl, trawl boards, and wires are considered as a joint complex.

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18

Sinđić Grebović, Radmila, Tatyana Spiridonova, and Maria Vrublevskaya. "Definition of Climatic Parameters for Calculation of Energy Performance of Buildings." Applied Mechanics and Materials 725-726 (January 2015): 1537–43. http://dx.doi.org/10.4028/www.scientific.net/amm.725-726.1537.

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Calculation of energy performance of buildings is defined by European standards in accordance with the Directive 2010/31/EU (EPBD). One of the main goals of the Directive 2010/31/EU is the decrease of energy consumption in the buildings. Standard EN ISO 13790 prescribes the methodology of calculations of energy performance of buildings. The input data for the calculation and their interpretation are defined by European standards related to EN ISO 13790. Climate parameters are defined based on meteorological data in accordance with EN ISO 15927-4. Numerous analyses have shown that the results of calculations depend not only on the chosen method, but also on defining the climate parameters.

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19

Volochanska, B. P. "Thermodynamic Parameters of Lead Sulfide Crystals in the Cubic Phase." Фізика і хімія твердого тіла 16, no. 4 (December 15, 2015): 649–53. http://dx.doi.org/10.15330/pcss.16.4.649-653.

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Geometric and thermodynamic parameters of cubic PbS crystals were obtained using the computer calculations of the thermodynamic parameters within density functional theory method DFT. Cluster models for the calculation were based on the analysis of the crystal and electronic structure. Temperature dependence of energy ΔE and ΔH enthalpy, Gibbs free energy ΔG, heat capacity at constant pressure CP and volume CV, entropy ΔS were determined on the basis of ab initio calculations of the crystal structure of molecular clusters. Analytical expressions of temperature dependences of thermodynamic parameters which were approximated with quantum-chemical calculation points using mathematical package Maple 14 were presented. Experimental results compared with theoretically calculated data.

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20

Chen, Ming, Ming Dong Chen, and Zhong Chao Yang. "Calculation Method and Application for Navigable Hydraulic Parameters of Jinsha River." Advanced Materials Research 255-260 (May 2011): 3500–3504. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.3500.

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According to the modified Эиванков calculation method and the balance relationship between representative ship effective thrust and resistance, the calculation method of maximal effective thrust is established by transforming hydrodynamic condition to hydrostatics condition due to the hydrodynamic complexity. One calculation method of navigable hydraulic parameters adapted for Jinsha River is put forward and applied successfully in prototype tests at Shuifu Port in Jinsha River.This method is convenient for application and can provide references for calculating navigable hydraulic parameters in other rivers.

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21

Medved, I. "OPTIMIZATION OF CALCULATION SCHEMES." Modern structures of metal and wood, no. 25 (August 2021): 85–91. http://dx.doi.org/10.31650/2707-3068-2021-25-85-91.

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Any calculation is preceded by the stage of creating a design diagram of a real structure, which would most accurately correspond to real operating conditions. The more optimally the design scheme is drawn up, the less laborious the stages of calculation and design of the corresponding structure will be. There are practically no results of using this approach when calculating building structures. This article attempts to show the possibility and expediency of using the "Search for solutions" (add-on for Microsoft Excel) at the stage of choosing the optimal parameters of the design design schemeAny calculation is preceded by the stage of creating a design diagram of a real structure, which would most closely correspond to real operating conditions. The more optimally the design scheme is drawn up, the less laborious the stages of calculation and design of the corresponding structure will be. If the efficiency criterion is a linear function, and the variables in the constraint system are also linear, then such a problem is a linear programming problem. Of the listed methods of mathematical programming, the most common and developed is linear programming. To illustrate the idea of the proposed approach, a simple statically definable truss on two supports was deliberately chosen. This is done so that the idea of the proposed approach is not lost due to the complexity and cumbersomeness of the calculations. This article shows the possibility and feasibility of using the "Search for solutions" at the stage of choosing the optimal parameters of the design design scheme. After the design scheme has been defined, more powerful conventional means of calculating building structures can be involved for its complete calculation.

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22

Deng, Zhongliang, Xubing Guo, Hao Wei, and Jun Gan. "PARAMETERS CALCULATION OF ASYMMETRICAL CPW-DGS." Progress In Electromagnetics Research M 48 (2016): 125–32. http://dx.doi.org/10.2528/pierm16032404.

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23

Zhang, Hui, Fang Jun Ou, Guo Qing Yin, Yu Kun Li, Yan Ju, Ya Xu Li, Chao Li, et al. "Calculation for 3D Rock Mechanics Parameters." Advanced Materials Research 791-793 (September 2013): 531–35. http://dx.doi.org/10.4028/www.scientific.net/amr.791-793.531.

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Accurate calculation of rock mechanics parameters is of great significance in developing comprehensive drilling and oil/gas development programme and technical measures, as well as reducing operation risk. It greatly relates to the reliability of ground stress field numerical calculation. This paper proposes a new method for calculation of 3D rock mechanics parameters, on the basis of acoustic logging data and lab core test data and also by reference to seismic velocity field. Taking Keshen 2 area in Tarim Basin as example, we have calculated 3D rock mechanics parameters using VB.NET calculation program, and drafted 3D rock mechanics parameters cloud charts of some profiles, showing small discrepancy against the acounstic logging interpretation data of production well. These 3D rock mechanics parameters calculated in this method can be directly applied for numerical calculation of ground stress field, providing references for fracturing parameter design and improving the simulation of reservoir stress field.

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24

Troitskiĭ, Yu V., and B. I. Troshin. "Calculation of parameters of diffraction polarizers." Optics and Spectroscopy 88, no. 5 (May 2000): 774–77. http://dx.doi.org/10.1134/1.626876.

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25

Boulos, Paul F., and Don J. Wood. "Explicit Calculation of Pipe‐Network Parameters." Journal of Hydraulic Engineering 116, no. 11 (November 1990): 1329–44. http://dx.doi.org/10.1061/(asce)0733-9429(1990)116:11(1329).

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26

Gunnarsson, O. "Calculation of parameters in model Hamiltonians." Physical Review B 41, no. 1 (January 1, 1990): 514–18. http://dx.doi.org/10.1103/physrevb.41.514.

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27

Reid, M. F., Betty Ng, and D. J. Newman. "Ab initio calculation of intensity parameters." Journal of the Less Common Metals 126 (December 1986): 301. http://dx.doi.org/10.1016/0022-5088(86)90305-x.

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28

Shukla, Vandana, O. P. Singh, G. R. Mishra, and R. K. Tiwari. "Reversible Realization of 4-Bit Vedic Multiplier Circuit with Optimized Performance Parameters." Sensor Letters 17, no. 10 (October 1, 2019): 826–31. http://dx.doi.org/10.1166/sl.2019.4155.

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Low power high speed calculating devices are foremost requirement of this era. Moreover, multiplication is considered as the most vital part of any calculating system. Multiplication process is generally considered as the speed limiting process as it requires more time as compared to other basic arithmetic calculations. So, here we focus on multiplication calculation using vedic method. Moreover, Reversible realization of any digital circuit improves the performance of the system by reducing the power loss from it. Here, the concept of vedic multiplication and Reversible approach are combined to propose a 4-bit multiplier circuit with optimized performance parameters. Proposed design is also analyzed and compared with existing designs. This approach may be employed to propose other low loss devices.

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29

Momma, Koichi, and Fujio Izumi. "VESTA 3for three-dimensional visualization of crystal, volumetric and morphology data." Journal of Applied Crystallography 44, no. 6 (October 29, 2011): 1272–76. http://dx.doi.org/10.1107/s0021889811038970.

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VESTAis a three-dimensional visualization system for crystallographic studies and electronic state calculations. It has been upgraded to the latest version,VESTA 3, implementing new features including drawing the external morphology of crystals; superimposing multiple structural models, volumetric data and crystal faces; calculation of electron and nuclear densities from structure parameters; calculation of Patterson functions from structure parameters or volumetric data; integration of electron and nuclear densities by Voronoi tessellation; visualization of isosurfaces with multiple levels; determination of the best plane for selected atoms; an extended bond-search algorithm to enable more sophisticated searches in complex molecules and cage-like structures; undo and redo in graphical user interface operations; and significant performance improvements in rendering isosurfaces and calculating slices.

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30

Zhu, Sheng Yi, Jun Wen, Wei Yang Yin, and Bao Hong Liu. "Development of Calculation Software of Steady State Parameters for HVDC Transmission." Advanced Materials Research 433-440 (January 2012): 4452–56. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.4452.

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As the ± 800kV Xiangjiaba-Shanghai UHVDC pilot demonstration project has been completion production in China, an UHV AC and DC power era is coming in State Gird. A large number of calculations of main circuit steady state parameters for HVDC system are necessary for both HVDC transmission planning and design and checking DC projects in operation. Therefore, this paper firstly discusses the steady state parameters. Then considering the comprehensiveness of types of HVDC transmission, through digesting design features of foreign similar software, the steady state parameters calculation software for HVDC transmission is developed independently. It has features such as user-friendly interface, real-time calculation and calculation of comprehensive, rapid and accurate, using the mixed programming of Visual C++ (VC++) and MATLAB. Finally, take the ± 800kV Xiangjiaba-Shanghai UHVDC transmission project for example to calculate steady state parameters. The calculation results are accurate to meet the engineering requirements.

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31

Qadr, H. M. "CALCULATION OF GAMMA-RAY ATTENUATION PARAMETERS FOR ALUMINIUM, IRON, ZIRCONIUM AND TUNGSTEN." Problems of Atomic Science and Technology, Ser. Thermonuclear Fusion 43, no. 2 (2020): 25–30. http://dx.doi.org/10.21517/0202-3822-2020-43-2-25-30.

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32

Popov, I. P. "REACTANTS AND OTHER PARAMETERS OF MECHANICAL SYSTEMS." Herald of the Ural State University of Railway Transport, no. 4 (2020): 4–12. http://dx.doi.org/10.20291/2079-0392-2020-4-4-12.

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The traditional calculation of mechanisms for forced harmonic oscillations is often a difficult task. Most often, calculators are interested in the steady-state modes of harmonic oscillations. The purpose of this paper is to significantly simplify calculations by replacing the need to solve differential equations with simpler algebraic methods. A complex representation of harmonic and related quantities is used. This approach is widely used in theoretical electrical engineering. Parallel and serial connections of mechanical power consumers are considered. The velocities of elements of mechanical systems and the forces applied to them are determined algebraically from the known parameters of systems and the disturbing harmonic effect. The use of a symbolic (complex) description of mechanical systems under forced harmonic vibrations (in steady-state mode) allowed us to abandon the extremely cumbersome and time-consuming calculation algorithm associated with solving differential equations, and replace it with simpler and more visual algebraic operations. Due to this, the time of calculations is reduced significantly. Vector diagrams, not being a necessary component of the study of mechanical systems under harmonic influences, have substantial methodological significance, since they show quantitative and phase relations between the parameters of systems.

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Cenký, Matej, Jozef Bendík, and Žaneta Eleschová. "Advanced methods for computation of electrical parameters for overhead transmission lines." Journal of Electrical Engineering 68, no. 2 (March 28, 2017): 143–47. http://dx.doi.org/10.1515/jee-2017-0020.

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Abstract This paper is aimed on the calculation of the electrical parameters of the overhead transmission lines. Standard trans- position and untransposed calculations are presented, also with results on the existing power line on 110 kV voltage level and known measured values of the electrical parameters. These measured parameters are used as the reference values. A presumption is made, that through more complex calculation one can achieve better results. The real results achieved are presented and compared with an ideal presumption

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34

Turanov, Khabibulla, and Yadgor Ruzmetov. "The problem of fastening cargo on railway rolling stock." E3S Web of Conferences 157 (2020): 01008. http://dx.doi.org/10.1051/e3sconf/202015701008.

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Fastening of cargo on the car. Calculation of load shift, elongation and forces in elastic elements of fasteners. Describe the parameters of the load and the physical and geometric parameters of the load fastening; give the results of the calculation of the longitudinal forces perceived by the elements of the load fastening. The article uses the basic law of dynamics in relative motion for the non-ideal connection known from theoretical mechanics. The results of the calculation of the longitudinal forces perceived by the load fastening elements, which allowed determining the load shifts along the car, elongation and forces in the flexible fastening elements are presented. Example calculation contributes to the practical application of a new method of calculating the elements of fastening on the car in the development of schemes of placement and fastening of goods of arbitrary geometry. The results of calculations revealed that the accepted value of the coefficient of longitudinal dynamics of the car corresponds to the shunting collision of the car on the hump yard in the marshalling yards.

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35

Zhang, Yan, Li Zhang, Xiu Ping Yao, Zhi Cheng Deng, and Yong Wang. "Calculation for Thermal Parameters of Steam in the Flow Passages of 1000MW Turbine under Variable Operating Conditions." Advanced Materials Research 354-355 (October 2011): 835–41. http://dx.doi.org/10.4028/www.scientific.net/amr.354-355.835.

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Aiming at a high-power turbine of a certain 1000MW electric-generating unit, three calculation schemes were programmed to calculate the thermal parameters of steam in the flow passages. The comparison and analysis between the calculating results and the design values under the turbine rated load (TRL) verified the feasibilities of the calculation schemes. The thermal parameters of steam in flow passages under variable operating conditions were also obtained by the calculation. The calculating results could be the basic data needed by thermal stress analysis and life prediction of the turbine.

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36

Mende, Tamás, and András Roósz. "Accurate Calculation of the Non-Variant Points of Equilibrium Phase Diagrams by Using the ESTPHAD Method." Materials Science Forum 729 (November 2012): 448–54. http://dx.doi.org/10.4028/www.scientific.net/msf.729.448.

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Certain phase transitions take place at a given temperature in the equilibrium phase diagrams, the values of their temperatures can exactly be measured so it is an essential task to calculate these values by a high accuracy. New parameters were introduced into the ESTPHAD equation for calculating the so-called non-variant points. By using the ESTPHAD method, the accuracy of calculations are compared to the data used for the calculations so the exact calculation of the temperatures of non-variant points are defined as compared to the data used for the calculations.

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37

Liu, Xu, Wei Liu, and Yun Fei Zhao. "Research Progress and Prospects for Vehicle Dynamic Stability Parameters." Applied Mechanics and Materials 729 (January 2015): 95–100. http://dx.doi.org/10.4028/www.scientific.net/amm.729.95.

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Dynamic stability parameters (dynamic derivatives) are important indicators for the control system design, orbit design and longitudinal and horizontal dynamic stability analysis of aircrafts. Methods that evaluate the quality and dynamics of an aircraft typically include flight experiment, wind tunnel testing and theoretical calculation, with one of the most important part of them being the obtainment of dynamic derivatives. Project estimation method derivative action is not considered suitable for boundary layer transition, flow separation and re-attached and the complex situation leeward area vortex small angle of attack linear range. Frequency domain is a dynamic non-scheduled periodic invariant system to get moving derivative calculation method, but the accuracy of the unsteady flow is much lower than the time-domain calculations. Currently, unsteady CFD approach represents a time-domain nonlinear aerodynamic characteristics predicted the most advanced level. Derivative prediction efficiency and adaptability under conditions of high angle of attack of the development trend of nonlinear dynamic derivatives were analyzed. As a global trend, obtaining dynamic parameters through numerical calculation is becoming a prevailing approach to dynamic parameter research.

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38

Wang, Yong. "The Car Brake System Design and Calculation." Applied Mechanics and Materials 457-458 (October 2013): 340–43. http://dx.doi.org/10.4028/www.scientific.net/amm.457-458.340.

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Calculation of car brake system design, also according to the known automotive related parameters is obtained by calculating the main parameters. The brake and braking torque, braking moment and braking force distribution coefficient and hydraulic brake drive mechanism related parameters. Finally, the braking performances are analyzed in detail.

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Roy, M. M., O. O. Akulshin, V. V. Solovyov, V. H. Usenko, and I. V. Limar. "The optimal method for assessing gas reserves based on the calculation of gas hydrodynamic parameters." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 2 (2021): 5–10. http://dx.doi.org/10.33271/nvngu/2021-2/005.

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Purpose. Development of a new methodology for calculating gas reserves for gas wells of any productivity. Methodology. The calculation method was developed using the theoretical provisions of gas dynamics. It is based on the actual data from the study on gas wells in one developed mode. Findings. For the first time, a methodology for calculating gas reserves was proposed during the development of one study mode. In parallel with the calculation of gas reserves, the possibility of analytical calculation of a significant number of gas-hydrodynamic parameters opens up. Originality. The developed methods for calculating the value of the initial gas reserves and gas-hydrodynamic parameters of the studied gas objects have no analogs in domestic and world practice. The first of the methods is distinguished by the simplicity of calculation and the availability of the initial data for its use. The second is based on the differential, differential-integral, and integral methods to improve the accuracy of the calculated results. Practical value. The new methods for calculating gas reserves will make it possible to quickly assess hydrocarbon raw materials in the investigated object. The availability, minimization, and accuracy of the initial data for calculating gas reserves are undoubtedly signs of the optimality of the method. The simplicity of the calculation makes it possible to widely use the technique. The use of a new methodology for interpreting the results of gas well research in one mode will make it possible to depart from the traditional research method. Due to this, the number of research modes is reduced by several times. It also means a reduction in emissions to the atmosphere if the well is not operated with backpressure at the wellhead. A significant reduction in the cost of the research process due to the reduction in research time is also a factor in significant savings in research funds.

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Anikin, А. S., and R. V. Nekrasov. "INDIRECT METHODS OF NUTRIENTS DETERMINATION IN FEED STUFF FOR DIARY CATTLE, SHEEP AND PIGS." Vestnik of Ulyanovsk state agricultural academy, no. 2 (50) (June 8, 2020): 193–200. http://dx.doi.org/10.18286/1816-4501-2020-2-193-200.

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We considered the question of demand parameters correspondence in feedstuff nutrition of separate groups of animals to parameters of feedstuff nutrition and possibility of their determination in feedstuff. For comparison we chose methods of determination of feedstuff chemical composition during zootechnic analysis, actual data of feedstuff nutrition on a database and estimate indicators of feedstuff chemical composition. Under factory conditions it is practically impossible to make full zootechnic feed analysis of diet according to specified parameters on grounds of analysis cost, laboratory opportunities and time conditions. Indirect methods of feedstuff nutrition index obtainment from data base and calculation with the help of regression were developed. However from database it is not always possible to get comprehensive information. There is not enough information in database on content in feedstuff microelements, vitamins, ADF, NDF, starch, sugar, etc. For calculation of feedstuff nutrition formulae were used in indirect method. They fully provide calculations of energetic partially protein feedstuff nutrition, but also calculations of separate parameters of carbohydrate nutrition. For calculation of mineral and vitamin and specific parameters of lipidic and carbohydrate nutrition there are no certain calculation formula. Consequently, along with advance of analysis methods of feedstuff chemical composition, it is necessary to broaden and deepen databases of feedstuff and continue research to establish mathematical models for calculations of feedstuff chemical composition . These developments will allow significantly speeding up calculations of diets, reducing costs and time on feedstuff analysis.

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Medvecká-Beňová, Silvia, Peter Frankovský, and Iveta Janeková. "The Parameters Affecting Strength Calculation of Gears." Key Engineering Materials 635 (December 2014): 30–34. http://dx.doi.org/10.4028/www.scientific.net/kem.635.30.

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Safety and traffic flow of production facilities also depends upon the reliability of technical security equipment. Gearing in the transmission mechanisms must satisfy the conditions of strength calculation. This calculation consists of checking of the gear teeth on bend and contact. From the stress of gears is show that the basic requirements of the material are high hardness of works surfaces and bending strength. Steels best meet these conditions. Used steel with surface hardness up to 350 HBW, or heat treated steel with hardness of 500-650 HBW. The advantage of these materials is the high value of the contact pressure in the tough centre core of the tooth. As a final heat treatment are used surface hardening, cementation and hardening, nitridation and carbo-nitridation. Good properties of heat-treated steels are at the correct thickness of the heat-treated layer of the tooth. This paper considers the appropriate choice of parameters to obtain the desired level of safety of gears in a gearbox to drive the conveyor in the metallurgical industry under increased load.

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Yasniy, P., M. Kolisnyk, O. Kononchuk, and V. Iasnii. "Calculation of constructive parameters of SMA damper." Scientific journal of the Ternopil national technical university 88, no. 4 (January 31, 2018): 7–15. http://dx.doi.org/10.33108/visnyk_tntu2017.04.007.

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BANKS, J., N. A. KELSON, H. MACINTOSH, M. DAGG, R. HAYWARD, T. BODISCO, and R. J. BROWN. "CALCULATION OF ENGINE PARAMETERS USING RECONFIGURABLE HARDWARE." International Journal of Computational Methods 11, supp01 (November 2014): 1344011. http://dx.doi.org/10.1142/s0219876213440118.

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The feasibility of real-time calculation of parameters for an internal combustion engine via reconfigurable hardware implementation is investigated as an alternative to software computation. A detailed in-hardware field programmable gate array (FPGA)-based design is developed and evaluated using input crank angle and in-cylinder pressure data from fully instrumented diesel engines in the QUT Biofuel Engine Research Facility (BERF). Results indicate the feasibility of employing a hardware-based implementation for real-time processing for speeds comparable to the data sampling rate currently used in the facility, with acceptably low level of discrepancies between hardware and software-based calculation of key engine parameters.

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Kalianov, Aleksandr, Yuliia Lagunova, and Viktor Shestakov. "Calculation of parameters of hydraulic cone crusher." Вестник Пермского национального исследовательского политехнического университета. Геология. Нефтегазовое и горное дело 16, no. 1 (2017): 73–81. http://dx.doi.org/10.15593/2224-9923/2017.1.8.

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Grenev, I. V., and V. Yu Gavrilov. "Calculation of microchannel parameters in aluminophosphate zeolites." Microporous and Mesoporous Materials 208 (May 2015): 36–43. http://dx.doi.org/10.1016/j.micromeso.2015.01.031.

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Nijenhuis, K. Te. "Calculation of network parameters in thermoreversible gels." Polymer Gels and Networks 4, no. 5-6 (January 1996): 415–33. http://dx.doi.org/10.1016/s0966-7822(97)89915-7.

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Jackson, R. A., A. D. Murray, J. H. Harding, and C. R. A. Catlow. "The calculation of defect parameters in UO2." Philosophical Magazine A 53, no. 1 (January 1986): 27–50. http://dx.doi.org/10.1080/01418618608242805.

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Anisimov, N., M. Gulaev, O. Pavlova, D. Fomina, V. Glukhova, S. Batova, and Yu Pirogov. "Calculation of optimal parameters for 19F MRI." Journal of Physics: Conference Series 886 (August 2017): 012001. http://dx.doi.org/10.1088/1742-6596/886/1/012001.

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de Leon, F., and A. Semlyen. "Efficient calculation of elementary parameters of transformers." IEEE Transactions on Power Delivery 7, no. 1 (1992): 376–83. http://dx.doi.org/10.1109/61.108931.

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Ghorai, A., and S. K. Sen. "Calculation on some defect parameters in lead." Journal of Physics F: Metal Physics 16, no. 3 (March 1986): 271–76. http://dx.doi.org/10.1088/0305-4608/16/3/006.

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