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Journal articles on the topic 'Control coefficient'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Dekusha, Oleg, Svitlana Kovtun, and Zinaida Burova. "Overview of materials and coatings emission coefficient control methods." System Research in Energy 2022, no. 2 (2022): 53–63. http://dx.doi.org/10.15407/srenergy2022.02.053.

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The emissivity of a coating and materials determines the intensity of radiation heat exchange on the surface of the object under study. Therefore experimental determination is important to ensure the necessary thermal protection characteristics of structures. The article considers methods of emissivity control, which are currently regulated by the main standards ASTM E408-13, ISO 9050:2003, C835-06, C1371-15. The methods of experimental determination of the emissivity can be divided into two large groups: optical and thermal. Spectrometric is the most widespread optical method. The technique o

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2

Shmyrin, A. M., and A. G. Yartsev. "Damping Procedure for Mixed Control with Variable Coefficients of the Neighborhood Model." International Journal of Engineering & Technology 7, no. 3.5 (2018): 21. http://dx.doi.org/10.14419/ijet.v7i3.5.15193.

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In the article, a bilinear neighborhood model of an installation for maintaining the optimum temperature of the polyol is considered. To determine the heat transfer coefficient, traditional mixed control and mixed control with variable coefficients were carried out. To improve the mixed control procedure with variable coefficients, damping is applied - imposing restrictions on the possible variation of the values of the variable coefficients. A comparison of the results of mixed controls with the results of determining the heat transfer coefficient with the help of thermotechnical calculation

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3

Choi, Ji-Won, Soon-Hyeong Park, and Kwon-Hee Lee. "Flow Coefficient Measurement of a Globe Valve for Precision Control." International Journal of Materials, Mechanics and Manufacturing 6, no. 4 (2018): 260–63. http://dx.doi.org/10.18178/ijmmm.2018.6.4.387.

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4

Li, Lu, and Shuyue Wu. "Particle Swarm Optimization Research Base on Quantum Q-Learning Behavior." Journal of Information Technology Research 10, no. 1 (2017): 29–38. http://dx.doi.org/10.4018/jitr.2017010103.

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Quantum-behaved Particle Swarm Optimization algorithm is analyzed, contraction-expansion coefficient and its control method are studied. To the different performance characteristics with different coefficients control strategies, a control method of coefficient with Q-learning is proposed. The proposed method can tune the coefficient adaptively, and the whole optimization performance is increased. The comparison and analysis of results with the proposed method, constant coefficient control method, linear decreased coefficient control method and non-linear decreased coefficient control method i

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5

Hong, Doui, Chanho Park, Yongho Yoo, and Sungho Hwang. "Advanced Smart Cruise Control with Safety Distance Considered Road Friction Coefficient." International Journal of Computer Theory and Engineering 8, no. 3 (2016): 198–202. http://dx.doi.org/10.7763/ijcte.2016.v8.1043.

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6

Li, Guoqiang, Shihe Yi, Binbin Li, and Xin Zhang. "Numerical Investigation on the Evolution Process of Different Vortex Structures and Distributed Blowing Control for Dynamic Stall Suppression of Rotor Airfoils." Actuators 13, no. 1 (2024): 30. http://dx.doi.org/10.3390/act13010030.

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The influencing characteristic for the evolution mechanism of a dynamic stall vortex structure and distributed blowing control on rotor airfoils was investigated. Based on the moving-embedded grid method, the finite volume scheme, and Roe’s FDS scheme, a simulation method for the unsteady flow field of a pitch-oscillating airfoil was established. The flow field of the NACA63-218 airfoil was calculated using Reynolds-averaged Navier–Stokes equations. The evolution processes of different vortex structures during dynamic stall and the principal controlled vortex mechanism affecting aerodynamic no

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7

Precious, Wendy Y., and John Barrett. "Quantification of the control of carbohydrate catabolism in the tapeworm Hymenolepis diminuta." Biochemistry and Cell Biology 71, no. 7-8 (1993): 315–23. http://dx.doi.org/10.1139/o93-048.

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The elasticities for the different steps of carbohydrate catabolism in the tapeworm Hymenolepis diminuta were estimated from perturbation experiments. These data were then used to calculate flux and metabolite control coefficients. Enzyme elasticities were also calculated from the rate equations and an independent estimate of the flux control coefficients for phosphoenolpyruvate carboxykinase was made by inhibitor titration. The values obtained for the flux control coefficients for carbohydrate breakdown in H. diminuta are consistent with how the pathway is thought to be controlled in vivo. A

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8

Tagiev, R. K. "Optimal coefficient control in parabolic systems." Differential Equations 45, no. 10 (2009): 1526–35. http://dx.doi.org/10.1134/s0012266109100164.

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9

Jablonská, Jana, and Milada Kozubková. "Diagnostics of Resistance Coefficients and Cavitation of Flow Control Valve." Applied Mechanics and Materials 752-753 (April 2015): 980–87. http://dx.doi.org/10.4028/www.scientific.net/amm.752-753.980.

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The paper deals with the determination of characteristic as dependence of the valve pressure drop on the flow rate, flow characteristic and cavitation conditions in case of water flow in the flow control valve. Emphasis is put on the utilization of simple, available relationships and measuring for identification of the basic valve coefficients, e.g. loss coefficient, flow rate coefficient and cavitation factor. These coefficients are used for designing of pipe circuits. In this paper there is defined methodology for determining those coefficients and is applied to the modified cone of flow con

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10

Pangestu, Agnes Dwi, Erry Sunarya, and Faizal Mulia Z. "Pengaruh Quality Control Terhadap Efektivitas Proses Produksi." Journal of Economic, Bussines and Accounting (COSTING) 5, no. 2 (2022): 1236–46. http://dx.doi.org/10.31539/costing.v5i2.2460.

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The research was aimed at finding out the effect of quality control toward production process effectiveness. The methods used in the research were descriptive and associative methods with quantitative approach. Technique of sampling applied was purposive sampling. Samples in the reserach were staff of production department amounted to 193. Techniques of analyzing data applied were multiple linear regression analysis techniques that included determination coefficients test, multiple correlation coefficient, and partial test (T test). The results found by using determination coefficient test obs

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11

Salter, M., R. G. Knowles, and C. I. Pogson. "Quantification of the importance of individual steps in the control of aromatic amino acid metabolism." Biochemical Journal 234, no. 3 (1986): 635–47. http://dx.doi.org/10.1042/bj2340635.

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The quantitative importance of the individual steps of aromatic amino acid metabolism in rat liver was determined by calculation of the respective Control Coefficients (Strengths). The Control Coefficient of tryptophan 2,3-dioxygenase for tryptophan degradation was determined in a variety of physiological conditions and with a range of activities of tryptophan 2,3-dioxygenase. The Control Coefficient varied from 0.75 with basal enzyme activity to 0.25 after maximal induction of the enzyme by dexamethasone. The remainder of the control for tryptophan degradation was associated with the transpor

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12

Demenchuk, A. K. "Solvability criterion of the control problem of an asynchronous spectrum of linear almost periodic systems with the trivial averaging of the coefficient matrix." Doklady of the National Academy of Sciences of Belarus 63, no. 6 (2020): 654–61. http://dx.doi.org/10.29235/1561-8323-2019-63-6-654-661.

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A linear control system with an almost periodic matrix of coefficients and the control in the form of feedback linear in phase variables is considered. It is assumed that the feedback coefficient is almost periodic and its frequency module, i. e. the smallest additive group of real numbers, including all the Fourier exponents of this coefficient, is contained in the frequency module of the coefficient matrix. The system under consideration is studied in the case of a zero average value of the matrix of coefficients. For the described class of systems, the control problem of the spectrum of irr

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13

Imam, Safayat-Al, Nasheen Kalam, and Sharmin Abdullah. "Comparative Analysis of Control Coefficients on the Performance of CNTFET Under Different Parameters." International Journal of Nanoscience 15, no. 03 (2016): 1640005. http://dx.doi.org/10.1142/s0219581x16400056.

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This paper deals with the performance of both gate and drain control coefficients to analyze the behavior of carbon nanotube field effect transistors (CNTFETs) under ballistic conditions and based on the change of different parameter value, such as oxide thickness of structure and temperature variation. A thorough study of both gate and drain control coefficient effects on the performance of CNTFETs has been conducted under different temperature and oxide layers and the output of the device has been analyzed through different parameters. Higher values of control coefficient help to attain larg

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14

Torres, N. V., R. Souto, and E. Meléndez-Hevia. "Study of the flux and transition time control coefficient profiles in a metabolic system in vitro and the effect of an external stimulator." Biochemical Journal 260, no. 3 (1989): 763–69. http://dx.doi.org/10.1042/bj2600763.

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Control of flux and transition time was investigated with a reconstructed rabbit muscle glycolytic system in vitro as an experimental model. The results show agreement with the summation property for the Flux Control Coefficients [Kacser & Burns (1973) Symp. Soc. Exp. Biol. 27, 65-104; Heinrich & Rapoport (1974) Eur. J. Biochem. 42, 89-95]. Control of flux is almost exclusively located at the hexokinase- and phosphofructokinase-catalysed steps, whereas control of transition time is distributed more evenly between the enzymes of the system. The summation value of the Transition Time Con

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15

Demenchuk, A. K. "A sufficient condition for the unsolvability of the control problem of the asynchronous spectrum of linear almost periodic systems with the diagonal averaging of the coefficient matrix." Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series 56, no. 4 (2020): 391–97. http://dx.doi.org/10.29235/1561-2430-2020-56-4-391-397.

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We consider a linear control system with an almost periodic matrix of the coefficients. The control has the form of feedback that is linear on the phase variables. It is assumed that the feedback coefficient is almost periodic and its frequency modulus, i. e. the smallest additive group of real numbers, including all the Fourier exponents of this coefficient, is contained in the frequency modulus of the coefficient matrix. The following problem is formulated: choose a control from an admissible set for which the system closed by this control has almost periodic solutions with the frequency spe

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16

Demenchuk, A. K. "A sufficient condition for the unsolvability of the control problem of the asynchronous spectrum of linear almost periodic systems with the diagonal averaging of the coefficient matrix." Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series 56, no. 4 (2020): 391–97. http://dx.doi.org/10.29235/1561-2430-2020-56-4-391-397.

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We consider a linear control system with an almost periodic matrix of the coefficients. The control has the form of feedback that is linear on the phase variables. It is assumed that the feedback coefficient is almost periodic and its frequency modulus, i. e. the smallest additive group of real numbers, including all the Fourier exponents of this coefficient, is contained in the frequency modulus of the coefficient matrix. The following problem is formulated: choose a control from an admissible set for which the system closed by this control has almost periodic solutions with the frequency spe

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17

Nie, Yanxin, Yiding Hua, Minglu Zhang, and Xiaojun Zhang. "Intelligent Vehicle Trajectory Tracking Control Based on VFF-RLS Road Friction Coefficient Estimation." Electronics 11, no. 19 (2022): 3119. http://dx.doi.org/10.3390/electronics11193119.

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This paper proposes an autonomous vehicle trajectory tracking system that fully considers road friction. When an intelligent vehicle drives at high speed on roads with different friction coefficients, the difficulty of its trajectory tracking control lies in the fast and accurate identification of road friction coefficients. Therefore, an improved strategy is designed based on traditional recursive least squares (RLS), which is utilized for accurate identification of the friction coefficient. First, the tire force and slip rate required for the estimation of the road friction coefficient by co

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18

Peng, Xiao Bin, and Zhi Jun Li. "Target Scale Adaptive Control Based on Comparing Bhattacharyya Coefficient." Advanced Materials Research 971-973 (June 2014): 1772–77. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.1772.

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Aiming at the limitations of the traditional mean shift, such as invariable kernel bandwidth, an improved tracking algorithm with the following strategies is proposed. The target model and the candidate are described by the similarity between them is evaluated by Bhattacharyya coefficient. This algorithm firstly calculates the Bhattacharyya coefficient of the template target histogram and template background histogram and calculates the Bhattacharyya coefficient of the candidate target histogram of the current frame and template background histogram when tracking. Then judge the change tendenc

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19

Yaohua, Li, Fan Jikang, He Jie, Nan Youfei, and Feng Qianlong. "Novel electric power steering control strategies of commercial vehicles considering adhesion coefficient." Advances in Mechanical Engineering 12, no. 12 (2020): 168781402098305. http://dx.doi.org/10.1177/1687814020983059.

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The steering resistance torque of commercial vehicles on low adhesion pavement is greatly reduced. Therefore, while driving on low adhesion pavement, the use of traditional EPS control strategies without considering adhesion coefficient will lead to driver’s road feeling being reduced or even lost, endangering driving safety. In this paper, the relationship between adhesion coefficient and steering resistance torque is researched through theoretical analysis and simulation. Two novel EPS control strategies of commercial vehicles considering adhesion coefficient are designed. The first control

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20

Demenchuk, A. K. "Solvability of the control problem of the asynchronous spectrum of linear almost periodic systems with a lower triangular representation of the averaging of coefficient matrix." Doklady of the National Academy of Sciences of Belarus 65, no. 3 (2021): 263–68. http://dx.doi.org/10.29235/1561-8323-2021-65-3-263-268.

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A linear control system with an almost periodic matrix of coefficients and control in the form of the feedback linear in phase variables is considered. It is assumed that the feedback coefficient is almost periodic and its frequency module, i. e. the smallest additive group of real numbers, including all the Fourier exponents of this coefficient, is contained in the frequency module of the coefficient matrix. The system under consideration is studied in the case of a triangular average value of the matrix of coefficients. For the described class of systems, the control problem of the asynchron

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21

HIMURA, Yoshiaki. "Improving Coefficient of Control by Neural Networks." Transactions of the Society of Instrument and Control Engineers 30, no. 4 (1994): 479–81. http://dx.doi.org/10.9746/sicetr1965.30.479.

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22

Takano, Kazuya, and Takeshi Noguchi. "Damping coefficient control device for vibration damper." Journal of the Acoustical Society of America 92, no. 1 (1992): 627. http://dx.doi.org/10.1121/1.404094.

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23

Humeau, J. P., and M. Grolleau. "Coefficient control for a distributed parabolic system." Mathematics and Computers in Simulation 27, no. 1 (1985): 1–17. http://dx.doi.org/10.1016/0378-4754(85)90010-2.

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24

Guo, Baocai, and Bing Xing Wang. "Control charts for the coefficient of variation." Statistical Papers 59, no. 3 (2016): 933–55. http://dx.doi.org/10.1007/s00362-016-0797-0.

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25

Wang, Xu Gang, and Qin Jing. "Aerodynamic Character Analysis for the Deflectable Nose Missile." Applied Mechanics and Materials 66-68 (July 2011): 264–67. http://dx.doi.org/10.4028/www.scientific.net/amm.66-68.264.

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Using the wind tunnel experimental data, the main aerodynamic coefficients are select, computed and analyzed for vehicles with deflectable nose and canard controls during different trim conditions. By analyzing the difference between aerodynamic coefficient of the two vehicle, the deflectable nose control offers increased control effectiveness 、maneuverability and stability ,reduces the aerodynamic drag. The performance of vehicle is enhanced with the deflectable nose control.

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26

Sun, Duo Qing. "Stability Analysis of the Golden Section Adaptive Control Systems for Attitude Keeping of Spacecraft with Unknown Parameters." Applied Mechanics and Materials 80-81 (July 2011): 1096–102. http://dx.doi.org/10.4028/www.scientific.net/amm.80-81.1096.

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All-coefficient golden section adaptive control scheme for attitude keeping of spacecraft with unknown parameters is proposed in this paper. Based on Lyapunov’s direct method for time-variant discrete systems, the paper gives the conditions for the uniform asymptotic stability of the all-coefficient golden section adaptive control system. The given conditions are dependent on the relations between coefficients in the closed-loop system equations and the variable rates of the coefficients. The result in this paper can be used to analyze quantitatively the stability of multivariable time-variant

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27

Park, Bong Seok. "Control of a Segway with unknown control coefficient and input constraint." International Journal of Fuzzy Logic and Intelligent Systems 16, no. 2 (2016): 140–46. http://dx.doi.org/10.5391/ijfis.2016.16.2.140.

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28

Liu, Wei-Jia, You-Bo Wang, Qing-Bin Li, et al. "Research on Interlayer Bonding Quality Control Method of Dam Concrete Based on Equivalent Age." Materials 14, no. 18 (2021): 5192. http://dx.doi.org/10.3390/ma14185192.

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Interlayer bonding quality is the key to the stability and durability of dam concrete. In this study, interlayer splitting tensile strength, relative permeability coefficient, and electric flux of dam concrete at different temperatures were tested. The relationships between equivalent age and strength coefficient, relative permeability coefficient ratio, and electric flux ratio were established. Meanwhile, a comprehensive early-warning and control system of dam interlayer bonding quality based on the above relationships was proposed. The results showed that the interlayer mechanical properties

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29

Brizitskii, Roman V., and Zhanna Y. Saritskaya. "Optimization analysis of the inverse coefficient problem for the nonlinear convection-diffusion-reaction equation." Journal of Inverse and Ill-posed Problems 26, no. 6 (2018): 821–33. http://dx.doi.org/10.1515/jiip-2017-0011.

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AbstractThe inverse coefficient problem for the nonlinear convection-diffusion-reaction equation is considered. A velocity vector and a mass-transfer coefficient are considered as the unknown coefficients and are recovered with the help of the additional information about the boundary value problem’s solution. The inverse coefficient problem is reduced to a two-parameter problem of multiplicative control, the solvability of which is proved in a general form. For a cubic reaction coefficient the local stability estimates of the control problem’s solutions are obtained regarding to a rather smal

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30

Demenchuk, A. K. "Necessary condition for solvability of the control problem of an asynchronous spectrum of linear almost periodic systems with trivial averaging of the coefficient matrix." Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series 55, no. 2 (2019): 176–81. http://dx.doi.org/10.29235/1561-2430-2019-55-2-176-181.

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We consider a linear control system with an almost periodic matrix of coefficients. The control has a form of feedback and is linear in phase variables. It is assumed that the feedback coefficient is almost periodic and its frequency modulus, i.e. the smallest additive group of real numbers, including all Fourier exponents of this coefficient, is contained in the frequency module of the coefficient matrix.The following problem is formulated: choose such a control from an admissible set so that the closed system has almost periodic solutions, the frequency spectrum (a set of Fourier exponents)

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31

Farahan, Md Sayed, Shaeekul Ameen, Md Farhun Monsur, and Md Faysal Nayan. "Parametric Simulation Study of Control Coefficients on the On-Off Current Ratio of Single-Walled Carbon Nanotube Field Effect Transistor." European Journal of Electrical Engineering and Computer Science 7, no. 5 (2023): 58–62. http://dx.doi.org/10.24018/ejece.2023.7.5.570.

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As the semiconductor business faces increasing technical and financial challenges, it is crucial to assess and analyze new ideas thoroughly. The unique properties of carbon nanotubes make them a promising material for applications in micro and nanoelectronics. The study focused on simulating the impact of control coefficients (gate and drain) on device characteristics. The simulation results were then analyzed using existing models. This research focused on studying the ION/IOFF ratio by varying the thickness and diameter of the nanotubes. The control coefficients have been observed to have an

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Tang, Zhi Jie, Jia Li Shen, Qing Bo He, Shu Ai Wang, and Jun Luo. "The Mathematical Analysis of Underwater Vehicle Control System." Advanced Materials Research 490-495 (March 2012): 761–65. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.761.

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In order to ensure that submersible has good performance of control , the kinematic model of underwater vehicle must be fairly accurate. At the same time, the accuracy of the kinematic model also is affected by hydrodynamic coefficients. Taking the underwater vehicle model as research object, the formula of the acceleration coefficient was deduced and hydrodynamic coefficients were calculated with the combination of theoretical and experiential formulas. Besides,the depth transfer function and heading transfer function were obtained. At last, we simulated the system and calibrated with PID

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33

Li, Wenkai, Jie Xie, Mengzhao Zhang, and Chunlin Guo. "Adaptive damping control strategy of virtual synchronous generator based on fuzzy control." Journal of Physics: Conference Series 2121, no. 1 (2021): 012038. http://dx.doi.org/10.1088/1742-6596/2121/1/012038.

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Abstract Based on the topology and small signal model of virtual synchronous generator, the influence of virtual inertia and damping coefficient on transient process is analysed. In order to solve the problem of overshoot with small damping coefficient and slow response with large damping coefficient, a fuzzy control method is introduced, which can completely eliminate overshoot without affecting the response speed. Another fuzzy controller is designed to optimize the output of the virtual synchronous generator in the primary frequency modulation process according to the SOC of the energy stor

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34

Easterby, J. S. "Integration of temporal analysis and control analysis of metabolic systems." Biochemical Journal 269, no. 1 (1990): 255–59. http://dx.doi.org/10.1042/bj2690255.

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A theory is developed that integrates approaches to the analysis of pathway transient response and metabolic control analysis. A Temporal Control Coefficient is defined that is a measure of the system's transient response to modulation of enzyme activity or concentration. The approach allows for the analysis of the establishment of a steady state from rest, of the system's ‘agility’ of response to minor perturbations of a pre-existing steady state and of the macroscopic transition between steady states. In the last-mentioned case it is shown that, like the transient time itself, the control of

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Du, Hai, Lejie Yang, Shuo Chen, Wenxiao Zhang, and Shengchun Han. "Effect of Multistage Circulation Control on Blade Aerodynamic Performance." Energies 15, no. 19 (2022): 7395. http://dx.doi.org/10.3390/en15197395.

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To improve the low aerodynamic efficiency and reduce the high energy consumption of a single-stage circulation control wing, a multistage circulation control wing was designed. By combining force measurement and particle image velocimetry (PIV), the aerodynamic and flow-field characteristics of an aerofoil were investigated with respect to the increase in the number of blowing slots, changes in the blowing coefficient, and different blowing ratios for three slots. The force measurement results revealed that the maximum lift-to-drag ratio resulting from simultaneous blowing into the three slots

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Li, Zhong, Wei Wang, You Ming, et al. "Rated flow coefficient of geometric compensation control valve." Journal of Physics: Conference Series 2815, no. 1 (2024): 012034. http://dx.doi.org/10.1088/1742-6596/2815/1/012034.

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Abstract Aiming at the large design error of the rated flow coefficient of existing control valves, it was difficult to meet the requirements of the equipment system. This study adopts the principle of infinite approximation to the existing flow coefficient calculation equation for geometric shape correction compensation, based on which the rated flow coefficient design method was proposed, and simulation and test verification were carried out. The results show that according to the design method, the rated flow coefficient of the control valve can be accurately designed. The variation rule of

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Ren, Guangwei, Hang Zhang, and Quoc P. Nguyen. "Effect of Surfactant Partitioning on Mobility Control During CO2 Flooding." SPE Journal 18, no. 04 (2013): 752–65. http://dx.doi.org/10.2118/145102-pa.

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Summary This paper presents a systematic study of the effect of surfactant partitioning between supercritical carbon dioxide (SCCO2) and water on surfactant transport and foam propagation during a two-phase flow. A series of corefloods was conducted on Silurian dolomite cores with different nonionic and anionic surfactants that represent respective wide ranges of partition coefficients and solubility in SCCO2. Foam robustness (i.e., rate of foam development) and displacement efficiency were related to these surfactant properties. Coreflood results and all measured surfactant properties were us

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Hong, Eui Pyo, Hae Woon Kang, and Chang Wook Kang. "DEWMA Control Chart for the Coefficient of Variation." Advanced Materials Research 201-203 (February 2011): 1682–88. http://dx.doi.org/10.4028/www.scientific.net/amr.201-203.1682.

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When the production run is short and process parameters change frequently, it is difficult to monitor the process using traditional control charts. In such a case, the coefficient of variation (CV) is very useful for monitoring the process variability. The CV control chart, however, is not sensitive at small shift in the magnitude of CV. The CV-EWMA (exponentially weighted moving average) control chart which was developed recently is effective in detecting a small shifts of CV. In this paper, we propose the CV-DEWMA control chart, combining the DEWMA (double exponentially weighted moving avera

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YAO Gao-fei, 姚高飞, 黄俊斌 HUANG Jun-bin, 顾宏灿 GU Hong-can, and 刘文 LIU Wen. "Coupling Coefficient Control of Phase-shifted Fiber Grating." ACTA PHOTONICA SINICA 48, no. 5 (2019): 506003. http://dx.doi.org/10.3788/gzxb20194805.0506003.

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40

Hudson, Jennifer S., and Daniel J. Scheeres. "Fourier Coefficient Selection for Low-Thrust Control Shaping." Journal of Guidance, Control, and Dynamics 36, no. 6 (2013): 1783–86. http://dx.doi.org/10.2514/1.58737.

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41

BACONNIER, P. F., P. PACHOT, and J. DEMONGEOT. "AN ATTEMPT TO GENERALIZE THE CONTROL COEFFICIENT CONCEPT." Journal of Biological Systems 01, no. 03 (1993): 335–47. http://dx.doi.org/10.1142/s0218339093000203.

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First developed in the case of a stationary flux, the notion of control strength inside a metabolic pathway is extended here to the case of a periodic flux. In this case, the control strength is no more defined on the stationary flux, but on other characteristics of the dynamics like the period or the amplitude, depending on the characteristic whose evolution we wished to describe. We simulated a subsystem of the glycolysis where a periodic behaviour exists and calculated the control strength on the period and on the amplitude of the ATP concentration. The results showed the value of the contr

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Kang, Chang W., Man S. Lee, Young J. Seong, and Douglas M. Hawkins. "A Control Chart for the Coefficient of Variation." Journal of Quality Technology 39, no. 2 (2007): 151–58. http://dx.doi.org/10.1080/00224065.2007.11917682.

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SOLTANMOHMMAD, BAHRAM, and RUXANDRA MIHAELA BOTEZ. "Control moment coefficient methodology validation for eVTOL sizing." Romanian Journal of Technical Sciences - Applied Mechanics 68, no. 2-3 (2023): 161–81. http://dx.doi.org/10.59277/rjts-am.2023.2-3.05.

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This paper presents a novel approach for the preliminary design of electric Vertical Takeoff and Landing (eVTOL) aircraft that utilizes the new Control Moment Coefficient (CMC) to size electric motors and to determine the rotor location and incidence angle. The CMC is determined for both thrust and arm length in eVTOL aircraft design, and is used to measure the moment produced by the rotors in the roll, pitch, and yaw axes. Analyzing its dimensionless value thus allows insights into an eVTOL aircraft's controllability. To test our methodology, two eVTOL aircraft were used in flight tests, one

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Isoda, Y., Y. Tanaka, H. Tanaka, and M. Kawano. "Scaling and lateral maneuverability of pitching foil in periodic freestream." AIP Advances 13, no. 2 (2023): 025161. http://dx.doi.org/10.1063/5.0137661.

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We formulate the thrust and lift coefficients using scaling laws to develop a guideline for the lateral maneuverability of a pitching foil in a periodic freestream. The scaling laws for thrust and lift coefficients of two-dimensional pitching foil in a periodic freestream are derived by considering added mass and circulatory forces. We examined the validity of scaling laws by conducting water tunnel experiments at a Reynolds number of 4.2 × 103. The key parameters are the pitch amplitude and phase difference between the periodic freestream and pitching foil. The pitch amplitude was changed fro

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Yashmetov, Evgeniy, and Lev Kazakovtsev. "Search method for optimal interpolation of thermomechanical coefficients for non-ferrous metals and high-alloy steels." ITM Web of Conferences 72 (2025): 01006. https://doi.org/10.1051/itmconf/20257201006.

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This study explores the optimization of interpolation techniques for thermomechanical coefficients in non-ferrous metals and high-alloy steels. These coefficients, including the temperature coefficient (Kt), deformation degree coefficient (Kε), and deformation rate coefficient (Ku), play a crucial role in characterizing the deformation resistance of materials under varying conditions. The challenge lies in the non-linear nature of these coefficients and their current representation in graphs and tables, which hinders their integration into automated control and optimization systems. To address

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Kostiukevych, Viktor, Natalia Shchepotina, Vadym Adamchuk, et al. "Integral assessment of football team tactics." Слобожанський науково-спортивний вісник 27, no. 4 (2023): 175–84. http://dx.doi.org/10.15391/snsv.2023-4.002.

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The purpose of the research was to develop a methodology of control and determine the indicators of integral assessment of competitive performance by various tactical game models of highly qualified football club teams. Material and methods. In the period of 2018-2023, 110 games of the leading European club teams and 46 games of the football team "Dynamo" (Kyiv) were analyzed with regard to the tactical models of the games "A", "B", "C", "D". Specific coefficients were determined in the phase of passing and possession of the ball, which constituted an integral assessment of competitive perform

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Chen, Kaiwen, and Alessandro Astolfi. "Adaptive Control for Nonlinear Systems with Time-Varying Parameters and Control Coefficient." IFAC-PapersOnLine 53, no. 2 (2020): 3829–34. http://dx.doi.org/10.1016/j.ifacol.2020.12.2560.

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Kim, Byung, and Bong Park. "Robust Control for the Segway with Unknown Control Coefficient and Model Uncertainties." Sensors 16, no. 7 (2016): 1000. http://dx.doi.org/10.3390/s16071000.

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Gao, ShiGen, HaiRong Dong, and Bin Ning. "Characteristic model-based all-coefficient adaptive control for automatic train control systems." Science China Information Sciences 57, no. 9 (2014): 1–12. http://dx.doi.org/10.1007/s11432-013-4937-z.

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Sun, Haibin, and Linlin Hou. "Adaptive anti-disturbance tracking control for nonlinear system with unknown control coefficient." Advances in Mechanical Engineering 9, no. 3 (2017): 168781401769071. http://dx.doi.org/10.1177/1687814017690712.

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