冷冻结晶-高效液相色谱法定量分析 食用油中4种生育酚Quantitative analysis of four tocopherols in edible oils by freezing crystallization-high performance liquid chromatography method... by 裘董琦1,2，赵引弟1,2，裴栋2,3，黄新异1,2，邸多隆1,2 QIU Dongqi1,2, ZHAO Yindi1,2, PEI Dong2,3, HUANG Xinyi1,2, DI Duolong1,2

“…In conclusion, the freezing crystallization-HPLC method is suitable for the quantitative determination of tocopherols in edible oils because of its easy operation, high extraction efficiency and good accuracy.…”
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Morphine and codeine in racing horse feed: is there reason for concern? by Karačonji Irena Brčić, Jelača Tea, Jurič Andreja, Vrdoljak Ana Lucić

“…However, a positive antidoping test may be due to the consumption of feed (mainly lucerne or oats) contaminated by opium poppy containing the alkaloids morphine and codeine. In order to determine whether a positive antidoping test is the result of an intentional abuse of opiates or consumption of feed contaminated by poppies, we optimised conditions for the extraction of morphine and codeine from dehydrated lucerne and developed and validated a gas chromatography-mass spectrometry (GC-MS) method for the simultaneous determination of both analytes. …”
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Particle Movement in DEM Models and Artificial Neural Network for Validation by Using Contrast Points by Barbora Černilová, Jiří Kuře, Rostislav Chotěborský, Miloslav Linda

“…The method of contrast points was utilized to acquire spatial co-ordinates of particulate material movement from experimental measurements, facilitating precise trajectory determination and the subsequent verification of simulation predictions. …”
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Optimization of Stope Structural Parameters for Steeply Dipping Thick Ore Bodies: Based on the Simulated Annealing Algorithm by Han Du, Xuefeng Li, Xuxing Huang, Yihao Yang, Shanda Duan, Tianlong Su, Xuzhao Yuan

“…Based on practical engineering needs, a stope span of 15.0 m, a pillar width of 10.0 m, and a roof thickness of 11.9 m were determined as the optimal structural parameters, achieving a balance between safety and economic efficiency.…”
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Domestic engineering as a factor of scientific and technological development of the Russian economy by V. N. Borisov, O. V. Pochukaevа

“…Purpose: study of the impact of innovation and technological development of engineering industries on the effectiveness of the impact of engineering factors on the growth and development of the economy.Methods: in conducting the study, the methods and tools developed by the authors based on the scientific base and the mathematical apparatus used in economic and statistical research were used.Results: the following tasks were solved: analysis of the efficiency of the functioning of the engineering industries in terms of contribution to the formation of gross value added, import substitution and export of products; analysis of the development of engineering production and its impact on the economy of the regions of the Russian Federation. …”
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Co-Optimization Operation of Distribution Network-Containing Shared Energy Storage Multi-Microgrids Based on Multi-Body Game by Hao Wu, Ge Cao, Rong Jia, Yan Liang

“…Under the carbon peaking and carbon neutrality target background, efficient collaborative scheduling between distribution networks and multi-microgrids is of great significance for enhancing renewable energy accommodation and ensuring stable system operation. …”
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An improved permeability estimation model using integrated approach of hybrid machine learning technique and Shapley additive explanation by Christopher N. Mkono, Chuanbo Shen, Alvin K. Mulashani, Patrice Nyangi

“…Accurate reservoir permeability determination is crucial in hydrocarbon exploration and production. …”
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Structural Integrity and Life Assessment of Ti-6Al-4V Orthopaedic Implants by Katarina Čolić, Svetlana M. Kostić, Simon Sedmak, Nenad Gubeljak, Aleksandar Grbović

“…The tensile properties of the titanium alloy were experimentally determined, along with the Paris law coefficients C and m. …”
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ACCOUNTING OF CONSTANT LOADS’ VARIABILITY IN CALCULATION OF BUILDINGS’ AND STRUCTURES’ CONSTRUCTIONS by Y. V. Krasnoshchekov

“…The article presents the investigation results of the factors determining the reliability coefficients’ values of the constant load from the weight of the structures in the buildings’ and bridges’ calculation by the method of limiting states. …”
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Comparative Evaluation of the Effectiveness of PowerPoint and Chalk and Talk Method of Dental Health Education on Knowledge, Practices, and Oral Health Status of 12–15-year-old Tri... by Saurabhachandra B. Pawar, Vittaldas Shetty, Chaitanya S. Buddhikot, Utkarsha V. Deshpande, Rasika B. Pawar

“…Aim: This study aims to assess the effectiveness of two different modes of oral health education (OHE) among tribal schoolchildren of the adolescent age and to determine the most effective mode among them. Methodology: This randomized controlled trial involved 185 participants in each group employed by cluster random sampling and randomized by the lottery method. …”
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Content Aspects of the Alternative Concept of Tax Regulation: Neo-Industrial Growth and Primary Implements for Fulfillment by E. Yu. Sidorova

“…The objectives of the study are to consider the substantive aspects of the alternative concept of tax regulation of neo-industrial development and to determine the fundamental mechanisms for its implementation. …”
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Exploration for the physical origin and impact of chemical short-range order in high-entropy alloys: Machine learning-assisted study by Panhua Shi, Zhen Xie, Jiaxuan Si, Jianqiao Yu, Xiaoyong Wu, Yaojun Li, Qiu Xu, Yuexia Wang

“…Based on first-principles calculations and Monte Carlo methods, we obtained information on each atom at the atomic and electronic levels to establish the ML features. …”
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A PLANAR n⁺ –n–n⁺ GaAs DIODE WITH GaInAs-BASED GRADED-GAP ACTIVE SIDE BOUNDARYN by V. O. Zozulia, O. V. Botsula, K. H. Prykhodko

“…Methods and Methodology. The carrier transport processes in the diode are simulated using a two-dimensional model, the particle ensemble Monte Carlo method, and the full geometric multigrid method to determine the electric fi eld distribution in the diode. …”
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Annealing temperature effect on the Structure, Morphology and Optical properties of Copper Oxide CuO thin Films by Najat A.Dahham

“…The structural, Morphology, and optical properties of the film are determined by using X-ray diffraction (XRD), Atomic force microscopy (AFM) and UV-visible spectroscopy respectively. …”
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Theoretical Model for Circular Concrete-Filled Steel Tubes Reinforced with Latticed Steel Angles Under Eccentric Loading by Zhongpei Li, Jun Wang

“…Previous experimental studies have demonstrated that the incorporation of steel angles substantially improves both the axial capacity and ductility of CFST-LSA columns. Existing methods for determining the eccentric bearing capacity of CFST-LSA columns primarily rely on the normalized <i>N</i>/<i>N</i>_u-<i>M</i>/<i>M</i>_u interaction curve. …”
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Simulation test and optimization for structural parameters of circular arc gear discharging fertilizer apparatus by DUN Guoqiang, GAO Zhiyong, GUO Yanling, LIU Yuxuan, MAO Ning, JI Wenyi

“…Upon this circumstance, the coefficient of variation was 0.28, and the coefficient of determination was 0.997 2. …”
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Tax analysis of the Corporate Income Tax

“…The author offered formulas allowing to determine efficiency of tax management of the corporate income tax.…”
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Energy Benchmarking Management for Beer and Beverage Industry in Vietnam by Minh Nguyen Dat, Kien Duong Trung, Hoang Truong Huy

“…The purpose of this paper is to introduce basic principles of benchmarking and explain the methodology to set the specific energy consumption (SEC) target for the beer and beverage industry in Vietnam to evaluate performance, support decisions, and energy efficiency (EE) improvement. Energy benchmarking management method is used to assess EE performance. …”
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Factors for improving the quality of life of the population of Russia by N. T. Ghukasyan

“…The relevance of the research topic is determined by the fact that in order to achieve a high standard of living and improve the quality of life of the population of our country, it is necessary to: implement the main goals of socio[economic development at the municipal, federal and state levels; getting rid of the differentiation of the socio[economic growth of regions, leading to the stratification of society; improving the quality of labor, production efficiency, the level of quality of products. …”
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An Advection Scheme using Paired Explicit Runge-Kutta Time Integration for Atmospheric Modeling by Zhaoyang SUN, Chungang CHEN, Xingliang LI, Xueshun SHEN

“…In this paper， a new numerical scheme was proposed to solve the advection equation in a multi-moment nonhydrostatic dynamical core.To guarantee the shape-preserving property， the limiting operations are devised for a hybrid discretization framework adopted by the multi-moment dynamical core， consisting of the multi-moment finite-volume and the conservative finite-difference schemes for the horizontal and vertical discretizations respectively.In the horizontal direction， a nonoscillaory scheme is accomplished by adjusting the slope of the multi-moment reconstruction polynomial at the cell center with the application of a WENO （weighted essentially non-oscillatory） algorithm.The resulting multi-moment scheme can achieve the fourth-order accuracy in the convergence test.In the vertical direction， a TVD （total variation diminishing） slope limiter is applied in the finite-difference discretization to remove the non-physical oscillations around the discontinuities.To accomplish the time marching in the proposed advection model， a second-order paired explicit Runge-Kutta scheme is adopted， which is expected to be an efficient and practical method for the advection solvers in the atmospheric models with very high spatial resolutions.The explicit time marching， without the dimension splitting， is useful to avoid the divergence errors in the advection transport calculations.Two Runge-Kutta schemes， requiring different times of conducting the spatial discretization within a time step， are combined， and used for the time marching in the different directions.The finite-difference discretization is called for six times within a time step in order to increase the maximum available CFL （Courant-Friedrichs-Lewy） number in the vertical direction， while the horizontal multi-moment spatial discretization is conducted for two times as the regular second-order schemes.As a result， the difference between the maximum time steps determined by the horizontal and vertical discretizations， due to the very large aspect ratio of the computational cells in atmospheric modeling， can be diminished.The non-negativity property of the proposed advection scheme is assured by devising a new flux-correction algorithm.It improves the existing positivity-preserving algorithm through further considering the mass flowing into the computational cell in an iterative procedure during the flux-correction operations.The proposed flux-correction algorithm can approach the necessary and sufficient condition for assuring the non-negative solutions and is more accurate for the advection calculations with CFL numbers larger than one.The widely used two-dimensional benchmark tests were checked in this study and the numerical results verified the performance the proposed advection scheme， which has the practical potential to build an accurate and efficient advection equation solver for the scalable high-resolution nonhydrostatic atmospheric models.…”
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