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1281
On the Third Hankel Determinant of a Certain Subclass of Bi-Univalent Functions Defined by (<i>p</i>,<i>q</i>)-Derivative Operator
Published 2025-04-01“…The functions are analyzed using a suitable operational method, which enables us to derive new bounds for the Fekete–Szegö functional, as well as explicit estimates for important coefficients like <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mo stretchy="false">|</mo></mrow><msub><mo>ℓ</mo><mn>2</mn></msub><mrow><mo stretchy="false">|</mo></mrow></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mo stretchy="false">|</mo></mrow><msub><mo>ℓ</mo><mn>3</mn></msub><mrow><mo stretchy="false">|</mo></mrow></mrow></semantics></math></inline-formula>. …”
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1282
POWER, METALLURGICAL AND CHEMICAL MECHANICAL ENGINEERING FLOW TYPE THERMOELECTRIC HEAT TRANSFER INTENSIFIER
Published 2017-10-01“…The aim of the study is to develop a construction design that increases the intensity of heat exchange between media and optimises the energy and mass dimensions of the instrument indicators.Methods. A method for the theoretical investigation of thermoelectric heat transfer intensifiers is used, which, by means of forced air flows along the junctions of thermoelements, provides a higher coefficient of heat exchange between media moving in transport zones with altering temperature.Results. …”
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1283
Measuring thermoelectric module properties by time-domain impedance spectroscopy using heat leakage at 300 K
Published 2025-03-01“…This method accounted for heat leakage through lead wires connected to a bismuth–telluride-based Π-shaped thermoelectric module. …”
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1284
Study on the pressure wave and interior pressure fluctuation of the intercity EMU passing through the tunnel
Published 2022-11-01“…The empirical formula was used to calculate the interior pressure fluctuation under different dynamic tightness coefficients. The computational results show that the pressure wave of the intercity EMU passing through the tunnel is mainly determined by the train speed and the blocking ratio, and the influence of the train speed is more significant. …”
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1285
An Improved Method for Calculating Undercut Radius of Involute Spur Gear with Small Tooth Number
Published 2018-01-01“…All results indicated that the conventional calculation method is applicable only the condition of upper radius coefficient limit determined by rack cutter geometry greater than its lower limit determined by successful gear hobbed machining,unfortunately,for the involute spur gear with small tooth number,its upper limit usually is less than its lower limit,so the conventional calculation method isn’t applicable for calculating undercut radius. …”
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1286
Clinical and Genealogical Research as a Method for Predicting the Development of Premature Ischemic Heart Disease
Published 2024-09-01“…On the basis of the obtained data, pedigrees were compiled and the coefficient of family aggregation (FA) was calculated. …”
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1287
Extraction kinetics of saponins from quinoa seed (Chenopodium quinoa Willd)
Published 2018-10-01“… A spectrophotometric method was proposed to determine total saponins content, while an unsteady state diffusional model was applied to this extraction problem, assuming strict internal control to the mass transfer rate. …”
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1288
Matching Pattern and Regional Regulation of Agricultural Water and Land Resources in Heilongjiang Province
Published 2022-02-01“…[Objective] The matching coordination level and regional differences of agricultural water and land resources at the city scale in Heilongjiang Province was analyzed in order to provide scientific guidance for the optimal allocation of regional agricultural water and land resources and the improvement of agricultural production pattern. [Methods] Using agricultural water and land resource data from 13 cities of Heilongjiang Province from 2009 to 2019, the Gini coefficient and the matching coefficient method were used to analyze the spatial distribution characteristics of agricultural water and land resources and their matching temporal and spatial evolution patterns. …”
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1289
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Rheological processes in the slope massifs of the city of Kyiv
Published 2024-12-01“…The considered solution model of the rheological process cannot be solved without the coefficient viscosity of soil. Using the scientific work of Ukrainian scientists, the authors determined this coefficient in the laboratory. …”
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1291
Effect of ADEEM methods (Assess, Do Massage Frirage, Exercise ROM, Evaluation, Making Schedule) on increasing muscle strength upper extremity of ischemic stroke patients at RSU GMI...
Published 2025-03-01“…</em></p><p class="Default"><strong><em>Objectives</em></strong><em> : This study aims to determine the effect of the ADEEM Method on increasing muscle strength in ischemic stroke patients. …”
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1292
Theoretical prediction of hysteretic rubber friction in ball on plate configuration by finite element method
Published 2009-11-01“…Additionally, the effect of the technique applied at the parameter identification of the material model and the number of Maxwell elements on the coefficient of friction (COF) was also investigated. …”
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1293
Properties of the Wrońskian determinant of a system of solutions to a linear homogeneous equation: The case when the number of solutions is less than the order of the equation
Published 2023-12-01“…The work sets out to study the properties of the Wrońskian determinant of the system of solutions to a linear homogeneous equation in cases when the number of solutions is less than the order of the equation, comparing them with the known properties of the same determinant when the number of solutions is equal to the order of the equation.Methods. …”
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Laboratory substantiation of the efficiency of nanocomposite material prepolymerization heating
Published 2020-04-01“…During the tests, the coefficient of linear thermal expansion, glass transition temperature, Young's modulus and penetration depth, electron scanning microscopy were determined.Results. …”
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Evaluation by Multivariate Statistical Methods of Relationship with Physicochemical Properties of Humic Acid and Some Soil
Published 2020-12-01“…In this study, HA (humic acid) contents of soil samples taken from 12 different locations were determined by appropriate method. After extracting the humic acid from the soil samples, the remaining soil elements concentrations were determined by ICP-OES method. …”
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1298
Determinants of height-for-age Z-score (HAZ) among Ethiopian children aged 0–59 months: a multilevel mixed-effects analysis
Published 2025-05-01“…This study examines HAZ as a continuous measure to explore its proximal and distal determinants. Methods Data from 5,045 children aged 0–59 months from the 2019 Ethiopian Mini Demographic and Health Survey were used. …”
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1299
Tooth Profile Construction Method with Double Pressure Angles for High Performance Gear Pumps
Published 2023-04-01“…The non-working pressure angle is determined by the working pressure angle and the allowable lower limit of the addendum arc angle and this method is simple and reliable. …”
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1300
Efficient extraction of ametryn in aqueous biphasic systems formed by polyethylene glycol and sodium sulfate
Published 2025-07-01“…The extraction efficiency and partition coefficients (Kₚ) were determined for each system. ATPS 4 and 5 achieved 100 % extraction efficiency, outperforming conventional extraction systems such as octanol-water. …”
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