Method for Analyzing the Molecular and Carbon Isotope Composition of Volatile Hydrocarbons (C1–C9) in Natural Gas by Chunhui Cao, Zhongping Li, Liwu Li, Li Du

“…Finally, seven natural gas samples, collected from different sedimentary basins, were successfully analyzed and the stable carbon isotope compositions of C1–C9 hydrocarbons present in these were determined through this method. Overall, the new approach provides a simple but useful technique to obtain more geochemical information about the source and evolution of natural gas.…”
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Development and psychometric evaluation of the nurses’ competency in patient education scale: a sequential exploratory mixed-method study by Zahra Farsi, Reza Momen, Seyedeh Azam Sajadi, Reza Negarandeh

“…This study aimed to develop and evaluate the psychometric properties of a self-assessment scale regarding nurses’ competency in patient education. Material and methods This sequential exploratory mixed-methods study was conducted in two stages. …”
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Influence and Mechanism of Solid-Phase Particle Factors on Oil–Solid Separation of Oily Sludge Treated by Flotation Method by Shuhui Wu, Xue Yao, Xiao Wang, Wenyan Yuan, Qiuhong Li, Xiaoyin Niu, Yanfei Ma

“…The response surface methodology (RSM) method was used to determine the Rs as the main control factor of the flotation process, and the oil content of residue phase in mixed-size sand OS was optimised to 2.63%. …”
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Visualization of Hazardous Substance Emission Zones During a Fire at an Industrial Enterprise Using Cellular Automaton Method by Yuri Matveev, Fares Abu-Abed, Leonid Chernishev, Sergey Zhironkin

“…Software and algorithmic support for an integrated system for the visualization and analysis of fire consequences at an industrial enterprise has been developed; the efficiency of the system has been confirmed by computational analysis and actual measurement. …”
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Measuring thermoelectric module properties by time-domain impedance spectroscopy using heat leakage at 300 K by Kotoko Kodama, Yasuhiro Hasegawa

“…This method accounted for heat leakage through lead wires connected to a bismuth–telluride-based Π-shaped thermoelectric module. …”
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Optimization Method of Wind Turbine Locations in Complex Terrain Areas Using a Combination of Simulation and Analytical Models by Dinh Van Thin, Le Quang Sang, Nguyen Huu Duc

“…This study presents a method to determine the optimal turbine locations when considering the correlation between wake loss and turbine space in the case of mountainous terrain. …”
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Determination of the Novel Insecticide Flupyradifurone and Its Two Metabolites in Traditional Chinese Herbal Medicines Using Modified QuEChERS and High-Performance Liquid Chromatog... by Nan Fang, Zhou Lu, Zhongbei Zhang, Zhiguang Hou, Shuang Liang, Bo Wang, Zhongbin Lu

“…A simple and efficient method using dispersive solid-phase extraction was employed for the pretreatment of the samples. …”
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Study on the pressure wave and interior pressure fluctuation of the intercity EMU passing through the tunnel by SONG Junhao, LIU Jiali, YAO Shuanbao, CHEN Dawei

“…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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Coal burst risk monitoring method based on the drilling powder of destressing drilling in coal seam and its application by Tongbin ZHAO, Yanchun YIN, Wentao REN, Qingzhi ZHANG, Jiuguo GAO, Zhigang ZHAO

“…However, due to the lack of drilling powder rate index and efficient weighing method, the drilling powder method based on destressing drilling has not been widely used. …”
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Evaluation of Tetrofosmin Cold Kit Fractionation Using Alternative New Method of Quality Control for Testing Radiochemical Purity by Nisha Bhatia, Rakhee Vatsa, Vandana K. Dhingra, Devinder Kumar Dhawan, Vijayta Dani Chadha

“…Radionuclide purity, radioassay, and pH were tested. Radiolabeling efficiency and RCP were determined by paper chromatography. …”
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Numerical simulation of coal particle motion characteristics in the envelope region of spiral drum based on discrete element method by Zhen Tian, Shan Gao, Lianwei Ma, He Wang, Yang Ge

“…Abstract In order to study the movement characteristics of coal particles in the coal loading process of spiral drums, the spiral drum of a certain type of shearer was taken as the research object, and the intrinsic parameters of the materials were calibrated through the determination results of coal sample properties, the relevant parameters of coal particle adhesion were determined, and a discrete element model of spiral drum coal loading was established. …”
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Correlations Between Cognitive and Social Functioning of Schoolchildren: Study of Population Data Using methods of intellectual Analysis of heterogeneous Data by Leyla S. Namazova-Baranova, Georgiy A. Karkashadze, Elena A. Vishnyova, A. I. Molodchenko

“…However, the correlations between cognitive and socio-characterological parameters of the emerging personality makes it difficult to collect information and decreases the efficiency of traditional analysis methods on the population scale. …”
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Spectrum-effect relationship of immunologic activity of Ganoderma lucidum by UPLC-MS/MS and component knock-out method by Changqin Li, Yiping Cui, Jie Lu, Lijun Meng, Changyang Ma, Zhenhua Liu, Yan Zhang, Wenyi Kang

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Indirect Measurement Method of Compression Cycle Parameters of Liquid-driven Reciprocating Hydrogen Compressor Based on Vibration Analysis by Zhipeng CHEN, Zhiliang LIU, Xiaonan ZHANG, Xuebing ZENG, Xingwen JIANG, Xiaoming GU

“…It develops and validates a novel non-direct measurement method that enhances the reliability and efficiency of parameter extraction in liquid-driven reciprocating hydrogen compressors, which are crucial for operational efficiency and diagnostic accuracy in hydrogen fuel systems.Methods The proposed method integrates Variational Time-Domain Decomposition (VTDD), Hilbert transform, and autocorrelation functions to enhance signal analysis and parameter extraction in noisy environments. …”
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Optimization and validation of a real-time PCR method for the simultaneous detection of Lactococcus garvieae and Streptococcus agalactiae in fish by Taona Zinyakasa, Farisai Chidzwondo, Tatenda Makawa, Sitokozile Sibanda, Exnevia Gomo, Tivapasi Musa, Elizabeth Gori

“…Currently, available pathogen diagnostic tools use biochemical and microbiological methods beleaguered by very low accuracy, reproducibility and specificity. …”
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ELECTROMAGNETIC AND SOUND INSULATION PROPERTIES OF COMBINED SHIELDS BASED ON THE NEEDLE-PUNCHING MATERIAL AND FRAGMENTS OF ALUMINUM FOIL by H.D. A. Abdulhadi, Е.А. A. Almashat, O. V. Boiprav, V. A. Bogush, A. M. Prudnik

“…Using an automated meter of transmission and reflection coefficients SNA 0.01–18, shielding characteristics in the frequency range 0.7–17 GHz of the shield samples made in accordance with the proposed method have been obtained. …”
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Urine Catheter Sterilization from Adhered Biofilm Using Bimetallic Nanoparticles Synthesized Using the Plasma Reduction Method by Mohammed F. Al–Marjani, Fatima J. Hassan, Raghad S. Mohammed, Nisreen Kh. Abdalameer, Javed Iqbal

“…Objective: This study investigates the antibiofilm properties of MgO/ZnO and CuO/ZnO nanoparticles at concentrations of 10 and 40 µg/mL, respectively, against common bacterial pathogens, specifically Klebsiella pneumoniae, Escherichia coli, and Staphylococcus aureus, and their potential to sterilize urinary catheters. Methods: A 96-well microtiter plate was used to determine sublethal dosage levels (Sub-MIC) and minimum inhibitory concentrations (MIC) to evaluate antibacterial activity. …”
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A Nonlinear Fitting Method Provides Strong Support for Geometric Series of Stomatal Area in 12 Magnoliaceae Species by Chunxiu Yan, Peijian Shi, Weihao Yao, Kexin Yu, Ülo Niinemets

“…In each micrograph, the length and width of each stoma were measured, and the area of the stoma was determined using the product of stomatal length and width multiplied by a proportionality coefficient. …”
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IMPROVEMENT OF TOOLS FOR CASH FLOW ANALYSIS OF E-COMMERCE COMPANIES by I. Khoma, O. Kostiuk-Pukaliak

“…The article shows the value of a free cash flow indicator, which became an alternative in determining the effectiveness of both e-commerce enterprises and traditional sales methods. …”
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Population Health Index of Russian Regions in the Context of SDG Key Indicators by A. V. Starshinin, N. A. Grechushkina, A. S. Pokusaev

“…Subjects of the Russian Federation have also been unevenly affected by COVID-19, causing changes in such a complex indicator as the population health index.The aim of the study was to determine the population health index of the subjects of the Russian Federation based on a number of health-related indicators of the SDG for 2022, as well as the most developed and the most vulnerable regions, taking into account the COVID-19 pandemic.Materials and methods. …”
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