Study on Distribution of Wellbore Temperature in Gas Drilling with Gradient Equations by Zhongxi Zhu, Chaofei Wang, Zhigang Guan, Wanneng Lei

“…The method applies pressure, temperature, density, and velocity equations to gas flow in drillstrings and annulus. …”
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DATA MINING STUDY FOR GROUPING ELEMENTARY SCHOOLS IN BOJONEGORO REGENCY BASED ON CAPACITY AND EDUCATIONAL FACILITIES by Denny Nurdiansyah, Saniyatus Saidah, Nita Cahyani

“…This study applies three clustering methods, namely K-Means, K-Medoids, and Random Clustering, which are compared to get the best clustering method. …”
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Nanometer-Scale CO2-Shale Oil Minimum Miscibility Pressure Calculations Based on Modified PR-EOS by Yahui Bu, Qian Sun, Shuoran Fu, Lingkong Guo, Na Zhang

“…CO2 flooding is recognized as an efficient method for enhancing shale oil recovery, while CO2-oil MMP (minimum miscibility pressure) in the micro-nanoscale is a crucial parameter. …”
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Correlations between the Neutron Star Mass–Radius Relation and the Equation of State of Dense Matter by Boyang Sun, James M. Lattimer

“…We develop an analytic method of inverting the Tolman–Oppenheimer–Volkoff relations to high accuracy. …”
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Research of current distribution by phases in asynchronous electric motor with a combined winding by E. I. Gracheva, T. V. Tabachnikova, L. V. Shvetskova

“…To develop a universal methodology for determining optimal voltage value in power supply center, that is, on substation power bus.METHODS. When calculating voltage in power supply center, which provides a certain amount of voltage on stator of most remote electric motor, method of equalizing potentials in nodes of outgoing line was used when calculating loads of elements of electrical complexes of producing wells. …”
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Random Natural Gradient by Ioannis Kolotouros, Petros Wallden

“…This method also performs equally well in our benchmarks, while it uses fewer resources than the QNG.…”
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THE IMPACT OF TMIP-BASED WEB IN TEACHING TOEFL ON STUDENTS' TOEFL SCORES by Ahmad Nusi, M Zaim, Yelliza Yelliza

“…The study conducted at the Practical Language Learning Center (PLLC) aimed to compare the effectiveness of two teaching methods for TOEFL preparation: the TMIP-Based Web in Teaching TOEFL method and a conventional approach or no specific intervention. …”
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Ethical study of the virtue of justice in the verses of the rulings "With the approach of moral analysis of the verses of retribution" by Seyedahmad Hashemialiabadi, Mohammad Javad Hassanzadeh

“…The data processing method of the present article is library and its content review method is descriptive-analytical.…”
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Research and Experiment on Rail Transit Linear Motor Vehicle Traction System by LI Li, ZHANG Ruihua, DU Yumei, GE Qiongxuan, WANG Ke

“…Through the test results and the comparison with the imported products, the feasibility of the research method and the technical scheme was validated. It was shown that domestic traction system was equal to the imported device in traction and brake performance, which could replace the imported system completely.…”
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A word from our Editor-in-Chief by Mihail Aurel Titu

“… Each technological method need to complete a technological process that represents an independent component which must, however, meet the precise requirements impose to the process equal system. …”
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A word from our Editor-in-Chief by Mihail Aurel Titu

“… Each technological method need to complete a technological process that represents an independent component which must, however, meet the precise requirements impose to the process equal system. …”
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Methodology for managing employee performance in modern commercial organizations. by A. T. Samatoev

“…Modelling analysis was performed using the retrospective data of the commercial organization — the period under consideration was equal to   39 months. The calculation assessed the dependence of changes on two indicators that noticeably affect the results: the number of cities where the company is present and the number of positions available in the company; it also determined the likely effect of the increase in labour productivity of employees when using the method. …”
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The Potency of The Cratoxylum cochinchinensis L. Fractional Extract against Some Clinical Methicillin-Resistant Staphylococcus aureus (MRSA) in Viet Nam by Thanh Thi Ngoc Lan Mai

“…The power of anti-MRSA of plant extracts is determined by the microdilution method. The results show that MIC values of Cratoxylum cochinchinense L. fractional extract against six clinical MRSA in Vietnam are equal to 1.625 mg/mL and 3.250 mg/mL. …”
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Speaker Model Clustering to Construct Background Models for Speaker Verification by Gökay DİŞKEN, Zekeriya TÜFEKCİ, Ulus ÇEVİK

“…Experiments showed that the proposed method consistently produced lower Equal Error Rates (EER) than the conventional UBM approach for 3, 10, and 30 seconds long test utterances, and also for channel mismatch conditions. …”
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d-Posterior approach in regression by A.A. Zaikin

“…We have introduced a method to apply the d-posterior approach in regression models. …”
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Ultrasonic Extraction-Gas Chromatography-Mass Spectrometry for Determination of Eight Organophosphorus Flame Retardants in Coatings by ZHANG Ying, LI Yi, CHEN Yezi, WANG Xutao

“…A method for the simultaneous determination of eight organophosphorus flame retardants (OPFRs) in coatings is developed with ultrasonic extraction for preprocessing and gas chromatography-mass spectrometry (GC-MS).The comparison and optimization of experimental conditions in the ultrasonic extraction process indicate that acetone should be taken as the extraction solvent,and the extraction temperature and time should be set to 30 ℃ and 15 min,respectively;when the extraction is repeated twice,the recovery is good.Quantitative analysis is performed by GC-MS with selective ion scanning,with the linear range of the standard preparation curves being 10~1 000 ng/mL.The results demonstrate that the correlation coefficients of linear regression equations for eight OPFRs are not less than 0.990 4.The detection limits of the method are between 0.04 and 0.26 ng/mL,with the recovery of 79.3%~112.0%,and the relative standard deviations are less than or equal to 6.4%.The application of the method to the determination of OPFRs in coating products from five enterprises shows that TCEP is detected in samples of only one enterprise,with a concentration of 15.22 ng/mL.…”
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Shape Designing of Engineering Images Using Rational Spline Interpolation by Muhammad Sarfraz, Munaza Ishaq, Malik Zawwar Hussain

“…The spline method, due to its most generalized description, recovers various existing rational spline methods and serves as an alternative to various other methods including v-splines, gamma splines, weighted splines, and beta splines.…”
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Social Enterprises in Poland in the Face of Recent Crises by Tomasz Gardziński

“…Moreover, part of the research was a nationwide quantitative study using the CAWI method supported by the CATI method and Dilman’s prompting method (mixed mode). …”
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Research on optimal design of forced air-cooling heat transfer in inhomogeneous thermal field by XU Hao, WU Caixiu, WU Zhiyong, WANG Xiong, SONG Guomeng

“…By using the research methods of numerical simulation and experimental testing, the initial no-heat-pipe scheme and the equal-temperature heat pipe scheme, including the forward and inverted mounting methods, were compared. …”
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Research of Measurement Technology of 3D Tooth Surface Error of Non-circular Gear by Yongping Liu, Haiqing Deng, Fulin Liao, Changbin Dong, Jie Xu

“…In order to reflect the geometry information of the tooth surface more realistically, a method of sampling the tooth surface with equal arc length by using the intersection line is proposed, and the non-circular gear tooth surface is meshed. …”
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