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Association of climate variability modes with concurrent droughts and heatwaves in India
Published 2025-01-01“…This study explores this association by demonstrating how concurrent droughts and heatwaves (CDHW) in India are temporally and spatially connected to multiple global teleconnections (referred to as climate variability modes). Composite and wavelet coherence analyses are implemented for the univariate evaluation of droughts and heatwaves—measured using the standardized precipitation index (SPI) and the standardized heat index (SHI), respectively—in relation to the climate variability modes. …”
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ALGORITHM FOR OPTIMIZING THE COMBUSTION PROCESS OF ASSOCIATED PETROLEUM GAS IN THERMAL POWER PLANTS, TAKING INTO ACCOUNT THE VARIABILITY OF ITS COMPOSITION
Published 2017-12-01“…These changes lead to the violation of the combustion optimal mode in thermal power plants. This article presents the algorithm of combustion optimization of hydrocarbon fuels variable composition, in particular of associated petroleum gas. …”
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RESEARCH ON SPEED AND PRESSURE CONTROL STRATEGY OF STABLE SWITCH ABOUT FOREPOLING EQUIPMENT
Published 2017-01-01Subjects: Get full text
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LINEAR PULSATION CHARACTERISTICS OF MIRA VARIABLE STARS
Published 2003-12-01“…The chemical composition of all models is (X,Z) = (0.7,0.02). From the result of this study, linear relations on Luminosity-Period-Mass relationship and luminosity-period-radius-mass relationship have been derived for the fundamental mode. …”
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The Optimization Design of Variable Valve Parameters for Internal Combustion Engines Considering the Energy Consumption of a Composite Electromagnetic Valve Mechanism
Published 2025-03-01“…Meanwhile, an efficient and economical operational mode for the variable valve mechanism was obtained, providing new insights for the development of variable valve timing technology.…”
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Variable Sound Insulation Structure with MFC Elements
Published 2013-10-01“…One of the possible opportunities to extend the field of applications of active noise reduction systems is using active structures of variable sound insulation. The paper presents an analysis of ways of reducing noise with a structure of variable sound insulation consisting of a metal plate, active elements (Macro Fiber Composite), and a control system. …”
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Numerical simulation study on the evolution of wrinkling defects in carbon fiber laminates based on spatial decomposition damage variable method
Published 2025-04-01“…Firstly, the maximum stress and Puck failure criteria were used to predict the intralaminar damage initiation, and the damage variables were calculated in combination with the mixed-mode damage evolution law. …”
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Modulation of the lunar semidiurnal tide in GNSS TEC by the variable Earth-Moon distance
Published 2025-05-01“…Time series analysis shows that the M2 amplitude in GNSS TEC is modulated by the period of the anomalistic month (27.55455 days) which is the time interval from one perigee transit of the Moon to the next. The variable Earth-Moon distance or the eccentricity of the Moon orbit is clearly responsible for this modulation. …”
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Optimizing Beam Stiffness and Beam Modal Response with Variable Spacing and Extrusion (VaSE)
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Electromechanical Resonant Ice Protection Systems Using Extensional Modes: Optimization of Composite Structures
Published 2025-03-01“…The final objective of this paper is to establish the design rules for a composite leading edge de-icing system. For this purpose, an incremental approach will be used on profiles with different radii of curvature: plate or beam (infinite radius), circular profile (constant radius), NACA profile (variable radius). …”
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Coherent South American Monsoon Variability During the Last Millennium Revealed Through High‐Resolution Proxy Records
Published 2019-07-01“…Here we decompose the South American Monsoon into its main modes of variability by applying a Monte Carlo principal component analysis to a compilation of 11 well‐dated summer paleoprecipitation records from tropical South America. …”
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Fault Detection and Isolation Strategy for Brake Actuation Units of High-Speed Trains Under Variable Operating Conditions
Published 2025-03-01“…Firstly, the structural composition and working principle of the BAU were introduced, and its typical failure modes and effects were analyzed. …”
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Characterization of the mean and extreme Mediterranean cyclones and their variability during the period 1500 BCE to 1850 CE
Published 2025-07-01“…For the cyclone frequency, a weak statistical relationship is identified with the East Atlantic (EA), East Atlantic/Western Russia (EAWR), and Scandinavian (SCAN) modes of circulation. Composite analyses of the most extreme cyclones with respect to wind speed and precipitation indicate that cyclones in the central Mediterranean have the potential to grow more intense over their entire lifetime than cyclones in the eastern Mediterranean. …”
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Non-Singular Fast Terminal Composite Sliding Mode Control of Marine Permanent Magnet Synchronous Propulsion Motors
Published 2025-05-01“…This strategy integrates the system’s state variables and the power function of the sliding mode surface into the traditional exponential reaching law, not only enhancing the sliding mode reaching rate but also effectively mitigating system chattering. …”
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Analysis of Control Characteristics and Design of Control System Based on Internal Parameters in Doubly Fed Variable-Speed Pumped Storage Unit
Published 2021-01-01“…In this paper, the control strategies and their characteristics when applied to the doubly-fed variable-speed pumped storage unit in generating mode and pump mode are discussed. …”
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Influence of interface sawtooth angle on the shear behavior of cement mortar coal composite structure
Published 2025-01-01“…In the present research, both the macroscopic- and microscopic failure characteristics of the CCCS with variable interface sawtooth angles (i.e., 0°, 15°, 30°, 45°, 60°, 75°) were experimentally and numerically investigated. …”
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Free Vibration Analysis of Cross-Ply Laminated Conical Shell, Cylindrical Shell, and Annular Plate with Variable Thickness Using the Haar Wavelet Discretization Method
Published 2022-01-01“…This paper presents a unified solution method to investigate the free vibration behaviors of a laminated composite conical shell, a cylindrical shell, and an annular plate with variable thickness and arbitrary boundary conditions using the Haar wavelet discretization method (HWDM). …”
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