Determination of Petroleum Oil in Soil by Fluorescence Spectrophotometry with Oscillatory Extraction by Yuan LI, Xiaoyan DUAN, Yuge SHI, Gang LI

“…The infrared spectrometry used characteristic absorption at different wavenumber to characterize the content of petroleum substances in the samples, but the response of infrared spectrometry to aromatic hydrocarbons is not sensitive.OBJECTIVESTo establish a simple pre-treatment efficiency, low detection limit and good reproducible method for determination of petroleum oil in soil.METHODSUsing n-hexane as the solvent, adsorption column as the extraction method and oscillatory as the pretreatment method, petroleum oil was extracted from soil and determined by fluorescence spectrophotometry.RESULTSUnder the optimal conditions that with 275nm as the excitation wavelength and 315nm as the emission wavelength，the extraction solvent was n-hexane and the extraction method was adsorption column, the calibration curves of petroleum oil were linear with correlation coefficients 0.999, and the detection limit was 3mg/kg. …”
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Mathematical approach for rapid determination of pull-in displacement in MEMS devices by Yongcun Shao, Yutong Cui

“…Compared to traditional methods, this approach yields exact values rather than approximations, showcasing superior precision and efficiency.DiscussionThe proposed method offers significant advantages, including enhanced accuracy, reduced computational time, and minimized error accumulation by solving algebraic equations instead of iterating differential equations. …”
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Determining the Cost-Effectiveness of Home Care: A Scoping Review by Katerina Gousia, Hansel Teo, Stacey Rand, Florin Vadean

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Determination of Quality Parameters in Maize Grain by NIR Reflectance Spectroscopy by Cem Egesel, Fatih Kahrıman

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TEST DETERMINATION OF PROBABILITY OF AIRBORNE DETECTION OF GROUND SURFACE OBJECTS by S. V. Nikolaev

“…The article presents the methods, mathematical model and its software implementation for calculating the efficiency indicators of visual and hardware search and detection of ground objects from the aircraft. …”
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Isolation and Determination of Fomentariol: Novel Potential Antidiabetic Drug from Fungal Material by Nevena Maljurić, Jelena Golubović, Matjaž Ravnikar, Dušan Žigon, Borut Štrukelj, Biljana Otašević

“…In that respect, it is important to develop a method for isolation and quantification of fomentariol from fungal material, which will be simple and efficient. …”
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Determination of Multicomponents in Rubi Fructus by Near-Infrared Spectroscopy Technique by Wenjun Du, Chunyan Wu, Hesong Yu, Qingran Kong, Yunjian Xu, Weidong Zhang

“…By using primary analysis techniques such as drying method, high-performance liquid chromatography (HPLC), and ultraviolet visible spectrophotometry (UV-Vis), the contents of moisure, ellagic acid, and total flavonoids were determined. …”
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DETERMINING PREFERENCES IN RECOMMENDER SYSTEMS BASED ON COMPARATOR IDENTIFICATION TECHNOLOGY by Vladimir Beskorovainyi, Lyudmyla Kolesnyk, Mariia Alokhina, Viktor Кosenko

“…The goal of the work is to increase the efficiency of recommender systems by improving the method of determining preferences between objects in lists using the theory of multi-criteria decision-making. …”
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Determining Symmetry Properties of Gravitational Fields of Terrestrial Group Planets by R.A. Kascheev, I.O. Novlyanskaya

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DETERMINANTS OF CRIME IN THE SPHERE OF DWELLING-COMMUNAL SECTOR IN RUSSIAN CITIES by E. A. Sizykh

“…Methods: correlation analysis using Pearson coefficient. …”
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Determinants Factors in Predicting Life Expectancy Using Machine Learning by B. Kouame Amos, I. V. Smirnov

“…The aim of this article is to identify the factors that determine life expectancy.   Materials and Methods. …”
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A DQN-based approach for energy-efficient train driving control by Shuai SU, Qingyang ZHU, Qinglai WEI, Tao TANG, Jiateng YIN

“…The energy consumption in railway system is growing rapidly due to the expanding scale of the railway network and decreased operational headway.Hence, it is of great significant to apply the energy-efficient operation of the vehicles to cut down the energy cost of the railway system.A method for solving the energy-efficient train driving control based on deep Q-network (DQN) approach was proposed.Firstly, the traditional energy-efficient train driving control problem was presented and its inverse problem was formulated, i.e., distributing the least energy consumption units to achieve the scheduled trip time.Moreover, the problem was reformulated as a Markov decision process (MDP) and a DQN-based approach for energy-efficient train driving control was proposed.A DQN was built to approximate the action value function which determines the optimal energy distribution policy and further obtain the optimal driving strategy.Finally, a numerical experiment based on the real-world operational data was proposed to verify the effectiveness of the proposed method and analyze the performance of the proposed method.The driving data of the trains is applied to improve the driving strategy via the proposed method in the paper which reduces the traction energy consumption.It is of significance for the future development of Chinese intelligent urban railway system.…”
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Simplifying Two-Stage Object Detectors for On-Board Remote Sensing by Jaemin Kang, Hoeseok Yang, Hyungshin Kim

“…Therefore, there is a need for efficient research into two-stage detectors. In this paper, we propose a model simplification method for two-stage object detectors. …”
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Tables to determine global cardiovascular risk at the first level of care by Agustín Paramio Rodríguez, René Oramas González, Albadio Pérez Assef, Fidel Cathcart Roca, Myder Hernández Navas

“…Introduction: Determining overall cardiovascular risk is essential for developing prevention policies at the primary level of care. …”
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Spatiotemporal patterns and determinants of agricultural resilience in the Yellow River Basin by Chengyao Ma, Shilei Wu, Xiaoqian Huo

“…It aims to provide insights into spatial patterns, regional disparities, and the key factors influencing resilience to support sustainable agricultural development.MethodsThe entropy method was used to assign weights to selected indicators of agricultural resilience. …”
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Determination of the Volume of Unboiled Arecanut Kernels using Image Processing by Salunke Ajit, Honnungar Sunilkumar, Vadivel Arunachalam

“…The proposed method overcoming the limitations of the ellipsoidal method achieved 97.33% accuracy with the potential for real-time measurement of the kernel volumes, providing a basis for automated quality grading based on density and porosity.…”
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Determinants of Change in Fertility among Women in Rural Areas of Uganda by Paulino Ariho, Abel Nzabona

“…In this study, we focus on determinants of change in fertility among rural women in Uganda using a multivariate Poisson decomposition technique to quantify the contribution of changes in the socioeconomic and demographic composition of women which we also refer to as the characteristic effects and changes in their fertility behavior (the coefficients’ effects or risk of childbearing) to the overall reduction in fertility among women in rural areas during the 2006–2016 period. …”
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Determination of the Shortest Hamiltonian Paths in an Arbitrary Graph of Distributed Databases by E. G. Andrianova, V. K. Raev, D. I. Filgus

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Processing and analysis of images of microstructure metals for determining the grain point by R. P. Bohush, Y. R. Adamousky, S. F. Denisenak

“…The software product implements metallographic methods for the grain size determination by comparison of rating scales, counting beans, calculation of grain boundaries intersections for equiaxed and elongated grains, measuring a chords length. …”
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Anthropometric Indicators to Determine the Obesity and its Relations with the Cardiometabolic Risk by Raúl Cedeño Morales, Maricel Castellanos González, Mikhail Benet Rodríguez, Luis Mass Sosa, Carlos Mora Hernández, Jorge Carlos Parada Arias

“…It was calculated the correlation coefficient of Pearson with 95 % confidence interval. …”
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