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1401
Analysis and modeling of factor determinants of food provision at consumer market of Ukraine
Published 2019-08-01“…Correlation-regression analysis allowed revealing and assessing the dependence of the level of main food products’ consumption in the country on the major groups of factor determinants. The assessment of standardized regression coefficients contributed to determining the input of each suggested factor in the condition of food provision of the consumer market. …”
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1402
An efficient numerical procedure for calculating periodic vibrations of elastic mechanisms
Published 2016-03-01“… This paper proposes a numerical procedure based on the well-known Newmark integration method to determine initial conditions for the periodic solution of a system of linear differential equations with time-periodic coefficients. …”
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1403
Identification of mass, damping and stiffness matrices of multi degree of freedom system subjected to kinematic excitations
Published 2025-03-01“…The reverse problem defined in this way consists of determining the coefficients of matrices M, C and K at any discrete point of time. …”
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1404
Stability Analysis of a Gear Pair System Supported by Squeeze-Film Dampers
Published 2001-01-01“…The steady-state response of the system is obtained by using the hybrid technique of Harmonic Balance Method and Time Collocation. The Fioquet-Liapunov theory is used to perform the stability analysis of the first variation equations with periodic coefficients, which is generated by the perturbation technique. …”
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1405
Depression and its determinants among adolescents in Jimma town, Southwest Ethiopia.
Published 2021-01-01“…<h4>Methods</h4>Using a cross-sectional survey, 546 school adolescents were screened for depression using the patient health questionnaire (PHQ-9) from five randomly selected public and private schools. …”
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1406
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1407
Investigation of Heat Exchange Efficiency in the Heat Exchanger Waste Heat Recovery with Granular Nozzle
Published 2016-12-01Get full text
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1408
UHPLC-PDA Assay for Simultaneous Determination of Vitamin D3 and Menaquinone-7 in Pharmaceutical Solid Dosage Formulation
Published 2017-01-01“…A newly developed method based on ultrahigh performance liquid chromatography (UHPLC) was optimized for the simultaneous determination of vitamin D3 and menaquinone-7 (MK-7) in tablet formulation in the present study. …”
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1409
Determination of the Dynamic Modulus of Elasticity of Concrete with Expanded Clay Using Ultrasonic Testing
Published 2025-08-01“…This study aimed to determine the Ed and Poisson's coefficient of concrete containing expanded clay, based on the ASTM C597-16 standard and the stiffness matrix method. …”
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1410
Retarding effect of migration of colloidal phosphorus in three types of soil
Published 2019-04-01“…In this study, a dynamic soil column method was used to determine the retardation coefficient of colloidal phosphorus migration in paddy soil, vegetable soil and tea soil, and the control effect of colloidal phosphorus migration was studied by applying different levels (0%, 0.05% and 0.1%) of polyacrylamide (PAM). …”
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1411
Weakly hyperbolic equations with time degeneracy in Sobolev spaces
Published 1997-01-01Get full text
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1412
Sensitive Spectrophotometric Determination of Atenolol in Pharmaceutical Formulations Using Bromate-Bromide Mixture as an Eco-Friendly Brominating Agent
Published 2012-01-01“…Three simple and sensitive spectrophotometric methods are proposed for the determination of atenolol (ATN) in bulk drug and tablets. …”
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1413
RESEARCH INTO THE AERODYNAMICS OF AIR FLOWS IN CYCLONES
Published 2025-06-01“…A 3d-mesh was built on the models of the study objects using the finite element method. Initial data and boundary conditions were assigned. …”
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1414
The impact of knowledge management on business performance with emphasis on the role of accounting information quality (Case study: financial institutions listed on the Tehran Capi...
Published 2025-03-01“…The obtained value of the coefficient of determination for the main endogenous variable of performance is 0.514. …”
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1415
Determination of 17 aldehydes in Baijiu (Chinese liquor) by direct injection gas chromatography
Published 2023-12-01“…<b>Objective:</b> To explore the content of aldehydes in Baijiu. <b>Methods:</b> A method for the determination of 17 aldehydes in Baijiu was established, and the methodological performance indexes were studied using statistics. …”
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1416
Determining The Factors Affecting Fruit Hardness of Different Peach Types with Meta Analysis
Published 2014-09-01“…The effect sizes in both methods were determined “mid-level” according to the Cohen’s classification. …”
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1417
Solvent Extraction And Spectrophotomteric Determination Of Cu(Ii) With Dicyclohexyl - 18- Crown-6
Published 2013-09-01Get full text
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1418
Determination of Heating Value of Estonian Oil Shale by Laser-Induced Breakdown Spectroscopy
Published 2018-01-01“…The study is the first where the oil shale heating value is determined on the basis of LIBS spectra. The method for selecting the optimal number of spectral lines for ordinary multivariate least squares regression model is presented. …”
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1419
Optimization of process parameters in fabricating AA6082/Nip surface composite using friction stir processing technique
Published 2024-01-01“…Additionally, Grey relational analysis (GRA) was used to grade the rank of the experimental samples using the Grey Relation Coefficient (GRC). Based on this method, the optimal process parameters (Rotational Speed = 1250 rpm, Transverse Speed = 40 mm min ^−1 , Volume Fraction = 18%) were chosen and the optimal sample (Rank 1) attained a UTS of 247 MPa and MH of 100 HV. …”
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1420
Estimation of Measurement Uncertainties for the DGT Passive Sampler Used for Determination of Copper in Water
Published 2014-01-01“…Uncertainty from the estimation of effective cross-sectional diffusion area and the instrumental determination of accumulated mass of analyte are the most significant sources of uncertainty, while uncertainties from contamination and the estimation of diffusion coefficient are negligible. …”
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