Development and validation of an analytical method for detecting chlorantraniliprole residues in fresh tea leaves by Tengfei Liu, Minghui Dong, Fengjie Zhou, Daifeng Yang, Xueming Zhang

“…An efficient method using multiwalled carbon nanotubes (MWCNTs) as dispersive solid-phase extraction sorbent was established for determining chlorantraniliprole residues in fresh tea leaves, which are known to be a troublesome matrix containing abundant pigments, via gas chromatography with an electron capture detector. …”
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A Variable Extractant Providing Method for On-The-Go Soil Nitrate Analysis Systems by Saadettin Yıldırım

“…The electro-pneumatic method was capable of obtaining and transporting a precise amount of extractant needed for on-the-go soil nitrate analysis within a short time less than 100 ms with a coefficient of variation of less than 3%. …”
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Interaction of Anticancer Drug Methotrexate with DS-DNA Analyzed by Spectroscopic and Electrochemical Methods by R. Hajian, M. Tavakol

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Presenting a simple method to estimate ground deformations in building-tunnel interaction by Yazdan Shams Maleki

“…Also, a simple and short-exponential mathematical equation with high accuracy (coefficient of determination greater than 0.90) is presented to estimate the amounts of deformations, efforts, and internal forces of the tunnel lining system with increasing surface construction overhead. …”
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A universal direct tensile testing method for measuring the tensile strength of rocks by Yang Wu, Jianfeng Liu, Zhide Wu, Junjie Liu, Yonghui Zhao, Huining Xu, Jinbing Wei, Wen Zhong

“…Granite was utilized as the test material in order to validate this suggested testing method, and the results showed what follows. Upon determining the true fracture area through digital reconstruction, an average calculated tensile strength of 5.97 MPa with a Cv of 0.04 was obtained. …”
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On the Laplace Residual Series Method and Its Application to Time-Fractional Fisher’s Equations by Rawya Al-deiakeh, Sharifah Alhazmi, Shrideh Al-Omari, Mohammed Al-Smadi, Shaher Momani

“…The generalized Taylor’s formula and the Laplace transform operator are coupled in the aforementioned method, where the coefficients, obtained through fractional expansion in the Laplace space, are determined by applying the limit concept. …”
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An enhanced method of CNNs by incorporating the clustering-guided block for concrete crack recognition by Hui Li, Chenyu Liu, Ning Zhang, Wei Shi

“…The innovative CG block operates by categorizing extracted image features into K groups, merging these features, and then simultaneously feeding the augmented features and original image into the CNN for precise crack image segmentation. It automatically determines the optimal K value by evaluating the Silhouette Coefficient for various K values, utilizing the grayscale feature value of each cluster centroid as a defining characteristic for each category. …”
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Forecasting Delivery Time of Goods in Supply Chains Using Machine Learning Methods by V. K. Rezvanov, O. M. Romakina, E. V. Zaytseva

“…The model evaluation showed a high determination coefficient close to one (0.986). Low values of the mean square error (0.0367) and mean absolute error (0.0324) were recorded. …”
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Symplectic method for the influence of surface effect on thermal buckling of graded porous nanobeams by LI Qinglu, NIU Xiaojie, ZHANG Jinghua

“…By using bifurcation conditions and normalization methods, the critical buckling temperature rise for buckling modes and nano-beams was analytically determined. …”
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Surrounding Rock Stability Classification Method of Coal Roadway Based on In Situ Stress by Yongjie Yang, Gang Huang, Lingren Meng

“…Taking into account the complexity of the classification of surrounding rock, some factors such as the strength of surrounding rock, in situ stress, the main roof first weighting interval, the size of the chain pillar, and the immediate roof backfilled ratio are selected as the evaluation indexes. The weight coefficients of these evaluation indexes are determined by unary regression and multiple regression methods. …”
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Validation of the stamping method for CaSO4:RE + Teflon® pellets production by Maira Goes Nunes, Leticia Lucente Campos

“…Calibration curves present a linear behavior over the entire studied dose range and the same coefficients for both methods, however, the uncertainties in the coefficients determined to the calibration curve obtained with stamped pellets are significantly smaller, leading to a more precise dose determination. …”
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Dynamic Monitoring Method for Aboveground Biomass of Maize Based on Multi-source Data by Liu Menghua, Zhou Guangsheng, Zhou Huailin

“…In the test set, the corresponding coefficient of determination values are 0.59, 0.85, 0.85, and 0.81, respectively. …”
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Titrimetric and Spectrophotometric Methods for the Assay of Ketotifen Using Cerium(IV) and Two Reagents by Madihalli Srinivas Raghu, Kanakapura Basavaiah, Kudige Nagaraj Prashanth, Kanakapura Basavaiah Vinay

“…One titrimetric and two spectrophotometric methods are described for the determination of ketotifen fumarate (KTF) in bulk drug and in tablets using cerium(IV) as the oxidimetric agent. …”
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Soil Porosity Detection Method Based on Ultrasound and Multi-Scale Feature Extraction by Hang Xing, Zeyang Zhong, Wenhao Zhang, Yu Jiang, Xinyu Jiang, Xiuli Yang, Weizi Cai, Shuanglong Wu, Long Qi

“…Finally, the model was trained, validated, and tested using ultrasonic signal data collected from soil samples to demonstrate the accuracy of the detection method. The model has a coefficient of determination of 0.9990 for detecting soil porosity, with a percentage root mean square error of only 0.66%. …”
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Development of Impact Factors Reverse Analysis Method for Software Complexes’ Support Automation by Andrii Pukach, Vasyl Teslyuk, Nataliia Lysa, Liubomyr Sikora

“…The developed method provides the possibility to restore certain boundaries of impact factors by classifying the multilayer perceptron’s hidden layer neurons and calculating the probability coefficients of the belonging of these neurons to the corresponding specific pre-determined impact factors. …”
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The Dynamic Prediction Method for Aircraft Cabin Temperatures Based on Flight Test Data by He Li, Jianjun Zhang, Liangxu Cai, Minwei Li, Yun Fu, Yujun Hao

“…The coefficients of the equations in the model are parameterized to extract the long-term stable terms and trend change terms; with the help of the measured data of the flight state, the model coefficients are determined by a stepwise regression method; and the temperature value inside the aircraft cabin is the output by inputting parameters such as flight altitude, flight speed, and external temperature. …”
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An Automatic Injection Device and the Method for Carbon and Oxygen Isotopes Analyses of Carbon Monoxide by Xi-jie YIN, Hai-li YANG, Pei-yu CHEN

“…The optical spectroscopy method is mainly used in the studies on theoretical CO isotope effects, but its analytical precision is low. …”
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A New Method to Estimate the Cover Management Factor on the Loess Plateau in China by XIE Xinli, LI Qinglan, WANG Linhua, ZHANG Hui, WU Faqi

“…[Objective] To investigate the combined effect of crop cover and crop management practices on preventing soil loss and improving the accuracy of C-factor estimation. [Methods] Six millet plots with different treatments, i. e., crop plot (C1), crop-roughness plot (C2), crop-crust plot (C3), bare plot (B1), roughness plot (B2), and crust plot (B3), were established and the soil loss at four growth stage was determined under simulated rainfall. …”
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Dynamic Evaluation of Regional Agricultural Drought Vulnerability Based on Triangular Fuzzy Number and Connection Number Coupling by GUO Fang, CUI Yi, CHEN Menglu

“…Vulnerability assessment of agricultural drought system is of great significance to agricultural drought risk management and risk control practice.In order to quantitatively evaluate the vulnerability of agricultural drought in Bengbu City,an evaluation model of agricultural drought vulnerability is established based on the coupling method of triangular fuzzy number and connection number.Firstly,connection number of single index is calculated by set pair analysis method,and the dynamic difference coefficient of different indexes is determined by the analysis and value method,that is,different-grade standard thresholds correspond to different difference coefficients.Then,connection value of each single index is calculated by combining the opposition coefficient and is weighted to obtain connection value of each subsystem and comprehensive connection value of sample.Finally,vulnerability grade value of regional agricultural drought system is determined by functional relationship between sample comprehensive connection value and evaluation grade value.Moreover,the model based on triangular fuzzy number and connection number coupling is applied to evaluate agricultural drought vulnerability in Bengbu City.The results show that:The results of comprehensive evaluation method based on triangular fuzzy number and connection number coupling were consistent with the comprehensive evaluation method based on grey relational analysis and connection number coupling,cloud similarity evaluation method and fuzzy comprehensive evaluation method.Drought vulnerability in 2001—2003 was strong,close to 3.5,and that in 2004—2010 was moderate,around 3.On the whole,the vulnerability is improved,which show that the ability of Bengbu's agricultural system to resist drought vulnerability is gradually strengthening,and level of agricultural development is constantly improving.Therefore,it can provide a strong basis for the government to scientifically prevent and control drought risks and scientific researchers to conduct quantitative research.…”
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Determination of Phenolic Compounds from Lignin Decomposition Products in Marine Sediments by Ultra-High Performance Liquid Chromatography-High Resolution Mass Spectrometry by Jianbo YANG, Junhui CHEN, Xiuping HE, Jiuming WANG, Ming XIN, Xia SUN, Baodong WANG

“…Under the optimum experimental conditions, the 11 main decomposition phenol compounds of lignin in marine sediments were well separated within 20 minutes. The proposed method had good precision (RSD was less than 9.0%), the correlation coefficient (R2) was not less than 0.9989 in the linear range, and the recovery rate of all spiked phenol compounds in blank marine sediment was in the range of 86.8%-93.2%, thereby indicating that the developed method would be suitable to determine the target decomposition phenol compounds of lignin in marine sediment. …”
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