Optimization of friction and electrical resistance performance in graphite-copper electrical contacts using Taguchi-based grey relational analysis by Bekhouche Djamel, Bouchoucha Ali, Zaidi Hamid

“…A gray relational grade obtained from gray relational analysis was employed to assess the performance characteristic in the Taguchi mixed L18 (2 1 x 3 2) method. The Taguchi design method determined the optimal control factors that affect the friction coefficient and electrical resistance. …”
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DIFFUSION-WEIGHTED MAGNETIC RESONANCE IMAGING IN THE DIAGNOSIS OF INTERVERTEBRAL DISC DEGENERATION IN THE LUMBOSACRAL SPINE by V. A. Byval’tsev, I. A. Stepanov, A. A. Kalinin, E. G. Belykh

“…Objective: to quantify the degree of degeneration of intervertebral discs (IVDs), by constructing functional diffusion-weighted imaging (DWI) maps, and to determine a correlation between the measured diffusion coefficient (DC) values and IVD changes on T1- and T2-weighted images. …”
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Cloud point extraction coupled with Isooctane back extraction for determination of eight pesticide residues in tea beverages by gas chromatography mass spectrometry by XIE Jie, ZHOU Run, KONG Ling-can, MENG Yuan-hua, WANG Yu

“…The average recovery was 78.3%~98.4%, RSD was 2.7%~8.5% (n=6). Conclusion: The method is simple in operation, high in enrichment rate, practical, safe and economical, which is suitable for rapid determination of pesticide residues in tea drinks.…”
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Simultaneous and Rapid Determination of Six Tyrosine Kinase Inhibitors in Patients with Non-Small Cell Lung Cancer Using HPLC-MS/MS by Yanping Liu, Hua Liu, Zhewei Xia, Zhipeng Wang, Yunlei Yun, Guanying Zhang, Lifeng Huang, Shouhong Gao, Wansheng Chen

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Assessment of Interregional Inequality of Tax Revenues by A. Sh. Kamaletdinov, A. A. Ksenofontov

“…A more accurate picture is described with the quotient of the tax revenues’ division by the labor resources engaged in their creation. Based on the methods used and data provided by the Federal Tax Service of the Russian Federation and Rosstat, was made of the uniformity of tax revenue collection among 85 subjects of the Russian Federation in the period from 2015 to 2020, all applied coefficients and indices were calculated. …”
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Investigation of the Kinetics of Heat and Moisture Exchange during Heat Treatment and Drying of Thin Wet Thermal Insulation Materials by A. I. Ol’shanskii, A. N. Golubev

“…The approximation of the drying rate curve by various methods is presented. When determining the duration of drying by zonal methods, the equation of the drying rate with the drying coefficient was used. …”
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Investigation of Indirect Shear Strength of Black Shale for Urban Deep Excavation by Mintae Kim

“…The effects of experimental methods and diametric loading on the elastic constant determination were evaluated and analyzed, and the indirect shear strength of the black shale, considering anisotropy, was determined using the estimated stress concentration coefficient. …”
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The Development of a High-Throughput Homonuclear Decoupling HSQC NMR Platform for the Determination of 10 Sex Hormones in Animal-Source Food and Medicines by Bing Wang, Qing-Zhi Liu, Jing-Ya Yang, Yu-Jie Du, Nai-Shuo Liu, Wei-Liang Cui, Man Yuan, Yong Zhang, Jing-Qi Wang, Dong-Liang Wang, Shu-Qi Wang

“…Satisfactory precision and recoveries of spiked animal samples were also obtained. Finally, the method was applied in residue determination of 10 hormones in real animal-source samples at the ug/g level.…”
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Determination of 17 types of phthalates in drinking water by solid-phase extraction coupled with multiple reaction monitoring of gas chromatography-mass spectrometry by SHI Mengxing, YANG Yan, DU Limin

“…The precision and accuracy of this method were assessed by determining the standard curves, detection limits, quantification limits, relative standard deviations (RSD) and average spiked recovery rates for the 17 types of PAEs. …”
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MODELING OF A DUPLEX MILLER AND CONDITIONS OF FORMATION OF TREATMENT OF WHEEL PAIRS OF MAIN ELECTRIC CARDS, DUAL CARS, ELECTRO SECTIONS by Victor Shapovalov, Alexandr Permyakov, Alexander Klochko

“…The purpose of the work is to develop a modeling method for a special shaped cutter with increased productivity, designed to process the profile of locomotive railway wheels taking into account the shaping processes, which is based on the theory of modeling the high-speed milling process through the shaping efficiency coefficient. …”
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Dimethyl Isosorbide: An Innovative Bio-Renewable Solvent for Sustainable Chromatographic Applications by Aleksandra Damjanoska, Kristina Mitreska, Matilda Petrova, Jelena Acevska, Katerina Brezovska, Natalija Nakov

“…This study presents a physicochemical characterization of DMI with a particular focus on its application as an innovative solvent in LC analyses. The partition coefficient (<i>log P</i> = −0.44) was determined using the OECD 107 method, and viscosity measurements for DMI and its mixtures with water and ethanol were conducted at 25 °C, 40 °C, and 60 °C. …”
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A New Proposal for Consumer Price Index (CPI) Calculation and Income Distribution Measurement by Income Groups by Esat Daşdemir

“…This study proposes an alternative method for the calculation of income distribution using the Gini coefficient. …”
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The potential energy impact of the suction tube of pumping facilities on the mark of pump axis installation and the power consumption of drive motors by Dmitriy S. Tsyplenkov, Irina N. Vinokurova, Ruslan R. Mazanov, Yulia S. Urzhumova

“…Purpose: to substantiate theoretically the impact of the potential energy of suction tube of pumping facilities on the installation mark of the pump axis and the drive motor power. Materials and methods. The theoretical studies were based on the substantiation of the impact of potential energy in the pump housing on head, on the analysis of dependence of hydraulic resistances coefficients in the suction tube on the installation height of the pump axis relative to the water source surface and on the impact of potential energy in the suction tube on the useful power of drive motors. …”
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Mechanical and corrosion anisotropy of magnesium single crystal by Dmitry L. Merson, Sergey Ya. Betsofen, Evgeny D. Merson, Vitaly A. Poluyanov, Pavel N. Myagkikh, Aleksey V. Danyuk, Vladimir A. Danilov, Ekaterina I. Maksimenko, Aleksandr I. Brilevskiy

“…In this work, mechanical (compression and tension) and corrosion tests were carried out for the first time on the same magnesium single crystal on samples with different crystallographic orientations. The Kearns coefficients calculated from the X-ray diffraction patterns of the single crystal specimen faces by the inverse pole figure method were used as a quantitative criterion of the natural texture. …”
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STUDY THE EFFECT OF SHOT PEENING RESIDUAL STRESSES ON COMPRESSIVE STRENGTH OF STIFFENED PANEL by ZHANG ZiPeng, LIU Cun, YIN KaiJun

“…A simple determination method for influence coefficient of shot peening is given and the functions in engineering are amended. …”
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Is There Any Correlation Between Diffusion‐Weighted Imaging and Histopathologic Findings of Meningioma? A Retrospective Study by Mahrokh Sadat Vaziri, Fahimeh Zeinalkhani, Soroush Alaeddini, Vahid Soleimani, Jayran Zebardast, Peyman Kamali Hakim, Hadise Zeinalkhani, Fahime Azizinik, Sina Delazar

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Characterization of slurries for slip casting via constant pressure filtration: determination of the most suitable slurry property for controlling the green-body density by Takamasa Mori, Chie Matsumoto, Kenta Kitamura, JunIchiro Tsubaki

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Evaluation of Corneal Higher-Order Aberrations by Pentacam HR in Rural Population of Iran by Hassan Hashemi, Abbasali Yekta, Mohammadreza Aghamirsalim, Alireza Hashemi, Mehdi Khabazkhoob

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Tribocontact surface exploration after friction in hexanoic acid solution by E. G. Drogan, V. E. Burlakova

“…The work objective is to explore the effect of hexanoic acid additives on the tribological characteristics of friction pairs under the friction interaction in waterborne and paraffin-based formulations. Materials and Methods. Tribological studies of a brass-steel friction pair were carried out on the AE-5 end-type friction machine. …”
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Novel derivative of nicotinic acid ameliorates doxorubicin-induced cardiac injury via regulation of redox homeostasis by Yana V. Loboda, Mikhail V. Korokin, Alexey V. Kuznetsov, Tatiana N. Malorodova, Anton P. Danilenko, Anna A. Peresypkina, Oleg S. Gudyrev, Ol’ga A. Kop’eva, Tatyana G. Pokrovskaya, Liliya V. Korokina, Valeriya N. Khruslova, Valeriya A. Nazarenko, Tatyana V. Avtina, Alexey V. Deikin, Aleksandr A. Dolzhikov, Tatiana V. Puzanova, Lyudmila M. Danilenko

“…The aim of the study: to evaluate the cardioprotective effects of a new original heterocyclic compound, a pyridine-3-carboxylic acid derivative potassium 5-hydroxynicotinate. Materials and Methods: Cardiac injury was induced by intraperitoneal administration of doxorubicin (DOX) at a dose of 20 mg/kg. …”
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