DETERMINATION OF CUTTING TILLAGE DISK PARAMETER by Ya. P. Lobachevskiy, S. I. Starovoytov

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Evaluating the efficacy of ultrasound-assisted extraction of Plantago major L. leaves by response surface methodology through determination of aucubin levels by Kurnia Rahayu Purnomo Sari, Zullies Ikawati, Retno Danarti, Nur Hasna Nafiisah, Triana Hertiani

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The influence of leaf anatomical traits on photosynthesis in Catimor type Arabica coffee by Ziwei Xiao, Guanrun Ma, Xuehui Bai, Jinhong Li, Mingzhu Zhao, Linlin Su, Hua Zhou

“…Leaf photosynthesis is largely determined by anatomical features. This study aimed to reveal the quantitative effects of the anatomical structure of Coffea arabica leaves on photosynthesis. …”
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Development of models and assessment of the world walnut variety fund by fruit quality by S. G. Biganova, Yu. I. Sukhorukikh, A. P. Glinushkin, E. K. Pchikhachev

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Assessment of spawning stock for walleye pollock <i>Gadus chalcogrammus</i> Pallas, 1814 in the northern Okhotsk Sea by ichthyoplankton method taking into account the eggs mortalit... by A. V. Buslov, E. E. Ovsiannikov, A. V. Smirnov

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Approaches to determining the cost of laboratory tests by I. I. Khayrullin, V. V. Omelyanovskiy, R. V. Gostishchev, O. A. Sukhorukikh, S. A. Kovaleva, B. G. Gorodetsky

“…These measures are aimed at improving the financial position and enhancing the operational efficiency of the laboratories.Objective: to review various methods for calculating the cost of laboratory tests.Material and methods. …”
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Application of Levenberg-Marquardt Backpropagation Algorithm in Artificial Neural Network for Self-Calibration of Deflection Type Wheatstone Bridge Circuit in CO Electrochemical Ga... by Amirhosein Asilian, S. Mohammadali Zanjani

“…The Levenberg-Marquardt backpropagation algorithm (LMBP) is utilized in the Artificial âNeural Network model to minimize the Mean Squared Error (MSE) and identify the most suitable parameters in the âproposed method.ââ âThe model under consideration has been developed and trained using real-time data.ââ âBased on âthe experimental and evaluation outcomes, it can be concluded that the suggested model has an MSE value of ââ0.28249 and an R2 coefficient of determination of 0.99992, indicating high accuracy and precision. …”
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The importance of the yield components of the spring durum wheat varieties from Russia and Kazakhstan by М. G. Myasnikova, P. N. Mal'chikov, T. V. Chakheeva

“…Field trials were carried out for three years (2015, 2016, 2018); the accounting area of the plots was 10.0 m2, with threefold repetition, with random plot placement; the sheaves for laboratory analysis were taken from each repetition (sampling area of 0.63 m2). Using the methods of correlation and path analysis, there has been established a significant correlation between variation of yield and such traits as economic coefficient (К.хозР), nature weight (H), 1000 grain weight (M1000), sterility of heads in the cenosis (Ст), number of grains per spikelet (ЧЗКК) and number of days before tillering (КДК).…”
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Development and Validation of a Chromatography Method Using Tandem UV/Charged Aerosol Detector for Simultaneous Determination of Amlodipine Besylate and Olmesartan Medoxomil: Appli... by Ariadne M. Brondi, Jerusa S. Garcia, Marcello G. Trevisan

“…The calibration curve presents linear dynamic range from 12 to 250 μg mL−1 for amlodipine and from 25 to 500 μg mL−1 for olmesartan with coefficient of determination (R2 ≥ 0.9908) while repeatability and reproducibility (expressed as relative standard deviation) were lower than 1.0%. …”
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TO THE ISSUE OF DETERMINATION OF THE INSURABLE RESERVE VOLUME by N. V. Andrianov, O. V. Shchukina

“…The theoretical and practical aspects of logistic function in the process of purchases are examined. The methodical recommendations for determination of the insurable reserve volume are given. …”
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Development of BaSrTiO3 nanomaterial based dispersive solid phase microextraction method for cadmium determination in thyme samples using flame atomic absorption spectrometry by Selim Gürsoy, Caner Korkmaz, Elif Öztürk Er, Sezgin Bakirdere

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Analysis of the Determinants of Government Expenditure in Indonesia by Selviana Megawati Sipayung, Paidi Hidayat, M. Syafii

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基于数字图像比色法的食用油酸价检测研究Determination of acid value of edible oil by digital image colorimetry-based method by 李跃凡1，马改琴1，王媛媛1，张帆2，于修烛1LI Yuefan1, MA Gaiqin1, WANG Yuanyuan1, ZHANG Fan2, YU Xiuzhu1

“…In conclusion, the digital image colorimetry-based method is simple and convenient, and can be used for the determination of acid value of edible oil.…”
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Analysis on APF Calculation Problem Caused by the Optional Method to Obtaining Performance Parameters of Low-temperature Intermediate Refrigeration Condition in GB 21455—2019 by Chen Xuancheng, Zhuang Dawei, Ding Guoliang, Yu Yuefeng, Cheng Jianhong, Wu Guoming

“…Based on the definition formula of APF, this study presents the reason for the difference in the APF value determined by the test method and the conversion method at the low-temperature intermediate refrigeration condition. …”
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Heat Partition between the Friction Components in Multi-disc Clutch during Sliding by Xiong Cenbo, Ma Biao, Li Heyan, Zhang Fenglian, Zhu Li’an

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Car integral performance index simulation by S. V. Teplyakova, A. A. Kotesova, N. N. Nikolaev

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Investigation of the Effect of Non-Flat Surfaces on the Performance of Perforated Acoustic Absorber by Zahra Hashemi, Ali Fahim, Mohammad Reza Monazzam

“…In order to simulate the absorption coefficient of a non-flat perforated panel, the finite element method was implemented by the COMSOL 5.3a software in the frequency domain. …”
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A method for determining the complex value of technical losses of full power in power three-phase two-winding transformers with account of additional losses from higher harmonic co... by S. S. Kostinskiy, A. V. Bogdan, E. I. Satsuk, A. S. Zasypkin

“…The study develops and test a methodology for determining the complex value of technical losses of full power in power three-phase two-winding transformers, taking into account additional losses from higher harmonic components.Materials and methods. …”
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DETERMINATION OF VEGETABLE FATS IN FOOD PRODUCTS by D. A. Utyanov, A. V. Kulikovskii, N. L. Vostrikova, A. N. Ivankin

“…Tightening control over the quality and safety of food products leads to an expansion of the list of standardized indicators and the regulatory framework of research methods. Despite the lack of established standards and requirements for fatty acid composition (FAC) of meat products and the content of vegetable fats in it, methods have been developed for determining FAC and vegetable fats. …”
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Features of the change in the thermal coefficient of electrical resistance upon heating electrically conductive composites of crystallizable polyolefins with carbon black by A. V. Markov, A. E. Zverev, V. A. Markov

“…To investigate electrically conductive polymer composite materials (EPCMs) based on crystallizable polyolefins and electrically conductive carbon black for the production of self-regulating heaters; to study the mechanism of the occurrence of positive and negative temperature coefficients (PTC and NTC) upon heating such composites.Methods. …”
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