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  1. 5201

    Optimal level and order of the Coiflets wavelet in the VAR time series denoise analysis by Intisar Ibrahim Elias, Taha Hussein Ali

    Published 2025-02-01
    “…Through the research results, the efficiency of the proposed method was reached in estimating the parameters of the VAR time series model, effectively treating noise, and determining the optimal Coiflets level and order.…”
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  2. 5202

    Adaptive capacity of the cardiovascular system in children with rheumatic diseases and comorbid conditions by N. S. Shevchenko, L. F. Bohmat, T. O. Holovko, M. V. Demianenko

    Published 2019-06-01
    “…To assess the functional intensity of the CVS, the following indices were calculated before and after the SMWT: Allgower index, endurance coefficient according to Kvas formula, Robinson index, coefficient of circulatory efficiency. …”
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  3. 5203
  4. 5204

    SIMULATION OF MULTIPLEXING OF TWO PHASE SOIL IN CASE OF COMPRESSION COMPRESSION by G. E. Agakhanov

    Published 2016-12-01
    “…In case of a persistence of coefficient of Poisson the intense deformed status of the environment can be determined also by method of elastic analogy, solving the appropriate uprugomgnovenny problem. …”
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  5. 5205

    Research on a closed-form solution for safe burial depth range (SDB-RS) of hard rock compressed air energy storage chambers based on no plastic zone criterion by Cheng Zhao, Zeyuan Sun, Qinyuan Luo, Yuan Qian, Jialun Niu, Chao Wei, Jinquan Xing

    Published 2025-05-01
    “…This study proposes a safe burial depth solution based on elastic and elastoplastic theories, with the safety criterion being the prevention of plastic zone formation in the surrounding rock. An approximate method is used to calculate the boundary of the plastic zone, and a closed-form safe burial depth range solution is determined by ensuring that the plastic zone remains contained within the chamber boundary. …”
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  6. 5206

    Weighted evidence combination based on degree of credibility and certainty by Lu WANG, Qing-hua XING, Yi-fan MAO

    Published 2017-01-01
    “…To overcome the invalidation problem of Dempster rule with high conflict,a weighted combination method based on degree of credibility and certainty was proposed.Firstly,the cosine similarity was modified to hold the ability to measure the evidence conflict when multi-subset focal elements were included,followed by the building of evidence credibility model.Secondly,the evidence certainty model based on precision and entropy was presented,which can both reflect the evidence’s degree of multi-subset focal elements and the dispersion degree of probability assignment.Then the weighted coefficient was determined by credibility and certainty.Finally,the normalized weighted coefficient was used to average the basic probability assignment,and the final combination result can be obtained according to Dempster rule.Numerical examples show that,compared with other traditional weighted combination methods,the proposed approach has made better performance in reducing conflict and accelerating convergence.…”
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  7. 5207

    A methodology study on spent dialysate collection by SONG Jin-hui, LIU Jian-jing

    Published 2018-01-01
    “…Objective To explore the accuracy of using a new kind of both simple and accurate tool to collect spent dialysate.Methods Thirty patients receiving maintenance hemo dialysis(MHD)in a stable condition were enrolled from our blood purification center.The patent method and the traditional method were used respectively to collect the spent dialysate of a whole dialysis(4 h)during the second treatment of a week.Phosphorus,urea nitrogen,creatinine and uric acid of the spent dialysate collected by two methods were determined,and the obtained data were classified as "patent group"and"traditional group".Meanwhile,by the use of data about gender,age,parameters of the dialyzer,and phosphorus concentration of spent dialysate which was collected after the dialysis for 60 min,a formula was used to calculate phosphorus removal amount of a whole dialysis procedure,and the obtained data were classified as"formula group".Results The total removal amounts of phosphorus,urea nitrogen,creatinine and uric acid in the patent group and traditional group were(27.60±8.39)vs.(27.75±8.45)mmol;(458.15±187.83)vs.(187.83±193.91)mmol;(14 676.46±5 593.39)vs.(5 593.39 ± 5 919.89)μmol;(6 341.61 ± 2 193.88)vs.(6 412.32 ±2 213.69)μmol,respectively.There were no statistically significant differences between the two groups(P>0.05),and the correlation coefficient was 0.996 for all.The total removal amounts of phosphorus in the formula group and traditional group were(32.8±28.03)vs.(27.75±8.45)mmol respectively.There were statistically significant differences between the two groups(t=6.35,P<0.01),and the correlation coefficient r=0.860.Conclusions The new method can perfectly replace the traditional or gold standard method to collect spent dialysate of a whole dialysis procedure.The detected removal amounts of various materials in the samples obtained by this new method are very consistent with those by the traditional method.Furthermore,the new method is significantly superior to the formula method.…”
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  8. 5208

    THE DETECTION OF THE NECESSARY CONDITIONS OF EFFECTIVE FUNCTIONING OF THE BALL CLEANING SYSTEM OF THE TUBES OF STEAM TURBINE CONDENSERS. Part 1 by A. G. Gerasimova, A. V. Malgin, Yu. N. Aleksandr, Ye. N. Kriksina

    Published 2017-03-01
    “…In the operation of the ball cleaning system a significant drawback has been revealed, viz. a low efficiency of this method due to the failure to comply with preparation the system of circulating water for operation. …”
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  9. 5209

    Contact Parameter Calibration for Discrete Element Potato Minituber Seed Simulation by Kai Chen, Xiang Yin, Wenpeng Ma, Chengqian Jin, Yangyang Liao

    Published 2024-12-01
    “…Subsequently, two repose angle tests are carried out by employing the box side plates lifting method and the cylinder lifting method. With the application of the response surface method and a search algorithm based on Matlab 2019, the optimal combination of seed-to-seed contact parameters, namely, the collision recovery coefficient, static friction coefficient, and rolling friction coefficient, is obtained, which are 0.500, 0.476, and 0.043, respectively. …”
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  10. 5210

    Design and Experimental Verification of a 1/20 Scale Model of Quayside Container Crane Using Distortion Theory by Zhe Li, Fangping Ye, Shiying Wu

    Published 2019-01-01
    “…In the second step, the bending stiffness is selected and determined as the distortion term and, then, the relationship between the distortion coefficient and the prediction coefficient is obtained by the finite element prediction coefficient method. …”
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  11. 5211

    Solubilization of <i>n</i>-hexadecane by micellar solutions of trehalolipid - surfactants of biological origin by I. A. Nechaeva, A. S. Parfenova, A. S. Filippova, A. E. Filonov

    Published 2024-11-01
    “…In order to establish the solubilizing ability of biosurfactants, the residual concentration of n-hexadecane in an aqueous sample of different concentrations was determined using a gas chromatographic method of analysis.Results. …”
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  12. 5212

    ASSESSMENT OF BIOLOGICAL AGE AND RATE OF AGING OF PATIENTS WITH UNDIFFERENTIATED CONNECTIVE TISSUE DYSPLASIA by N. Yu. Kononova, T. E. Chernyshova, R. M. Zagrtdinova

    Published 2017-08-01
    “…Assessment of biological age and the rate of aging of patients with undifferentiated connective tissue dysplasia.Materials and methods. 89 women with 6 or more undifferentiated connective tissue dysplasia phenes and 42 women of the control group with less than 6 undifferentiated connective tissue dysplasia phenes had their biological age determined using the method of V.P. …”
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  13. 5213

    Optimization of Parameters of a Vertical Ground Heat Exchanger in a Geothermal Heating System by Walery Jezierski, Piotr Rynkowski

    Published 2024-11-01
    “…Only factor <i>T</i><sub>w</sub> (<i>X</i><sub>4</sub>), with such a change, caused a decrease in the thermal efficiency of the tested heat exchanger by 44.22%. The parameters of the tested element of the geothermal heating system were also optimized according to the energy criterion using a numerical method in the Matlab environment. …”
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  14. 5214

    Improving the Performance of Robust Partial Least Squares Regression Using an Iterative Approach by Mahammad Mahmoud Bazid Bazid, Taha Hussein Ali Ali

    Published 2025-06-01
    “… The robust partial least squares regression method provides a solution to noise and outliers in the estimated models by maximizing the explanation ratios of the independent and dependent variables (determination coefficient). …”
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  15. 5215

    MANAGEMENT AND VALORIZATION OF AGRICULTURAL WASTES FROM WINE PRODUCTION USING STATISTICAL ANALYSIS TO OBTAIN NOVEL FOOD by Gjore NAKOV, Zlatin ZLATEV, Iliana LAZOVA-BORISOVA, Jasmina LUKINAC

    Published 2021-01-01
    “…Determination coefficient (R2), model coefficients, their standard error (SE), t-statistics (tStat), p-value, Fisher's criterion (F) are determined. …”
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  16. 5216

    Simulation of subnanosecond radio pulse electro-optical repeater by A. V. Shiltsin, M. S. Kostin

    Published 2022-03-01
    “…Software simulation of infrared repeaters in the Simulink environment (Trial Version Soft) was developed, which allows for analyzing and investigating the efficiency of the optical reconstruction method of radio pulses using a fractional multiplexing with delayed feedback. …”
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  17. 5217

    ASSESSMENT OF THE COMPETITIVENESS OF THE MARITIME TRANSPORT INFRASTRUCTURE OF UKRAINE AND EUROPEAN COUNTRIES by Vladyslav Stepanenko, Natalia Lokhman

    Published 2022-04-01
    “…At the first stage, the indicators were standardized, at the second, the weight coefficient of the selected indicators was calculated, at the third stage, the total rank of indicators was calculated, at the fourth stage, the weighting coefficient was calculated for each group of indicators, and at the fifth stage, the integral indicator of the competitiveness of the maritime transport infrastructure was determined. …”
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  18. 5218

    Estimation of Synthetic Unit Hydrographs’ Parameter Values: The Case of Wadi Al-Badan Sub-Catchment, West Bank, Palestine by Ghossoun Hamedallah, Sameer Shadeed

    Published 2024-03-01
    “…The parameters were determined for the Snyder; peaking coefficient depends on the storage capacity of the catchment Cp = 0.88 and the non-dimensional regional coefficient representing catchment storage effects and slope Ct = 1.26 and for the SCS; Cp = 1.90 and the coefficient depending on the total runoff volume occur before peak discharge C = 2.92. …”
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  19. 5219

    Development of a computer simulation model of a three-phase asynchronous electric drive using an adjustable transistor reducer by S. Yu. Eremochkin, A. A. Zhukov, D. V. Dorokhov

    Published 2023-08-01
    “…The values of similar quantities for the electric motor, which is powered by a phase-shifting capacitor, are determined. The dependences of the power factor and efficiency on the active power on the motor shaft are determined.Conclusion. …”
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  20. 5220

    Desiccation of hemp seeds by high temperature micronization by S. V. Zverev

    Published 2021-10-01
    “…In several cases, it is necessary to use heat treatment of cereal products to reduce moisture, inactivate some enzymes, increase storability and processing efficiency. One of the methods for heat treatment is high-temperature micronization — heating in a flow of infrared radiation. …”
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