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The relationship of plasma catestatin and heart rate variability parameters in middle-aged men with primary hypertension
Published 2019-02-01“…To study the catestatin plasma level in patients with primary hypertension of different cardiovascular risk and to assess its relationship with heart rate variability (HRV) parameters.Material and methods. …”
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Heart rate variability and hemostatic parameters in patients with coronary heart disease and chronic heart failure
Published 2013-10-01“…To assess the association between the changes in heart rate variability (HRV) and hemostatic parameters in patients with coronary heart disease (CHD) and chronic heart failure (CHF) as its complication. …”
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Effect of water-based aerobic training on anthropometric, biochemical, cardiovascular, and explosive strength parameters in young overweight and obese women: a randomized controlle...
Published 2025-02-01“…There is minimal research on the specific effects of structured water aerobic exercise on health markers in young overweight and obese women, despite the acknowledged benefits of physical activity for weight control and overall health. This study aimed to assess the effects of 10-week water-based aerobic training (thrice a week) on anthropometric, biochemical, cardiovascular parameters, and explosive strength in young overweight and obese women. …”
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Adaptive Control of Short-Wave Data Transmission System Parameters
Published 2017-04-01“…We consider a problem of adaptive parameter selection of short-wave data transmission systems such as information signal type, noise combating code type and parameters, operating frequency in case of step-by-step control of transmission process in dynamically changing conditions of radio wave propagation and interference environment. …”
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NUMERICAL CONTROL MILLING PARAMETER OPTIMIZATION ON THE BASIS OF IMPROVED GENETIC ALGORITHM
Published 2022-01-01“…Numerical control machining is widely used in traditional manufacturing industry and national defense strategic industry, and optimization of milling parameters is closely related to processing efficiency, quality and cost. …”
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Numerical Simulation Study on Parameter Optimization of Time Sequential Controlled Blasting
Published 2022-01-01“…In order to reduce the damage of blasting to rock mass and improve the half-hole rate of presplitting blasting, the dynamic finite element analysis software ANSYS/LS-DYNA is used to simulate and analyze the action process of sequential controlled blasting. …”
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Dynamic compression mechanical properties of soft coal under different strain rates
Published 2025-04-01“…The dynamic stress-strain curve of coal was obtained, the crushing energy consumption and energy consumption density were calculated, the quality of broken coal in different particle size ranges was screened, and the variation of mechanical characteristic parameters, energy dissipation and crushing characteristics of coal with strain rate were analyzed. …”
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Fundamental of constant electrode melting rate control for electroslag fusion welding
Published 2025-05-01“…In order to solve the problem of horizontal depth of fusion fluctuation during electroslag fusion welding (ESFW) as well as to improve the uniformity of the distribution of grain size, solute elements and non-metallic inclusions, the present study establishes a fundamental theory of constant electrode melting rate control of ESFW based on basic principles of heat transfer, proposes for the first time a mechanism for regulating the voltage and slag, and develops an experimentally validated transient 2D multiphysics field coupling model (2.2 % error in molten pool width). …”
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Parameter Optimization of Milling Process for Surface Roughness Constraints
Published 2023-02-01“… In the milling process of 6061 aluminum considering the requirement of controlling the surface roughness of workpiece, artificially selected milling parameters may be conservative, resulting in low material removal rate and high manufacturing cost.Taking the surface roughness as the constraint condition and the maximum material removal rate as the goal, the surface roughness regression model is established based on extreme gradient boosting (XGBOOST) with the spindle speed, feed speed and cutting depth as the optimization objects.The milling parameters of spindle speed, feed speed and cutting depth are optimized by genetic algorithm.The optimal milling parameters are obtained by using the multi objective optimization characteristics of genetic algorithm.It can be seen from the four groups of optimization results that the maximum change of surface roughness is only 0.048μm, while the minimum material removal rate increases by 2458.048mm3/min.While achieving surface roughness, the processing efficiency is improved, and the manufacturing costs are reduced, resulting in good optimization effects, which has a certain guiding role in the actual processing.…”
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<strong>Life table parameters of <em>Neoseiulus</em> <em>californicus</em> (Acari: Phytoseiidae), on the European red mite, <em>Panonychus ulmi </em>(Acari: Tetranychidae) in labor...
Published 2013-05-01“…The values of the intrinsic rate of increase (rm) and finite rate of increase (λ) were obtained to be highest at 25°C (0. 237 day –1 and 1.26 day–1, respectively), which was greater that those estimated at 20°C (0.161 day–1 and 1.17 day–1, respectively). …”
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Adaptive Control Parameter Optimization of Permanent Magnet Synchronous Motors Based on Super-Helical Sliding Mode Control
Published 2024-11-01“…Optimizing control rate parameters is one of the key technologies in motor control systems. …”
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Experimental investigation into effects of material and energy regulation of debris flow by using check dams with different porosities
Published 2024-12-01Subjects: Get full text
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Influence of MIG Welding Process Parameters on the Strength of Bimetal Joints: Study of Gas Flow Rate and Macrofractures
Published 2024-11-01“…Welding two different types of metal can pose its own challenges, such as the difficulty of controlling welding parameters so that the results are optimal for both types of metal, as well as differences in the thermal and mechanical properties of the two metals. …”
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Modernization of the coolant temperature control system in steam generator sets
Published 2023-12-01Subjects: “…systems with distributed parameters…”
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Multichannel Communications in Wireless Automation: Interdependencies between Communication and Control Parameters
Published 2012-03-01“…These results can, for example, be further exploited in system design to find out the maximum packet arrival rate with given control parameters.…”
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A segmented differential evolution with enhanced diversity and semi-adaptive parameter control
Published 2025-04-01“…Secondly, building on the idea of parameter restriction in the evolutionary stage of delineation, a semi-adaptive parameter control method based on the fitness of the irrelevant function is proposed which effectively solves the instability problem of excessive fluctuations in the convergence of adaptive parameters. …”
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Route to Measure Exact Parameters of Bio-Nanostructures Self-Assembly
Published 2024-10-01“…For the first time, this approach enables an accurate calculation of the autocatalytic and self-inhibitory parameters controlling the process. Through mathematical modeling, our method enhances the understanding of how the protein-based nanocoatings form and opens new avenues for their application in nanotechnology and synthetic biology. …”
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A Novel Macroblock Level Rate Control Method for Stereo Video Coding
Published 2014-01-01“…To compress stereo video effectively, this paper proposes a novel macroblock (MB) level rate control method based on binocular perception. …”
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Bifurcation and Optimal Control Analysis of an HIV/AIDS Model with Saturated Incidence Rate
Published 2025-06-01“…A local sensitivity analysis of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="script">R</mi></mrow><mrow><mi>e</mi></mrow></msub></mrow></semantics></math></inline-formula> identifies the disease transmission rate as the most sensitive parameter. The optimal control problem is then formulated by incorporating the dynamics of infected subpopulations, control costs, and time-dependent controls. …”
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