Determination of Trace Lead and Copper in Seawater by Inductively Coupled Plasma-Mass Spectrometry with Coconut Shell Biochar Enrichment by Mei HAN, Wei ZHANG, Na JIA, Chenling ZHANG, Xiangke KONG

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Intergenerational chronic undernutrition pattern and determinants in Ethiopia: a multilevel and spatial analysis of EDHS data (2000–2016) by Mekuriaw Nibret Aweke, Asebe Hagos, Moges Tadesse Abebe, Amare Kassaw, Molla Azmeraw, Nigusu Worku, Tesfahun Zemene Tafere, Mekides Engeda Alemu, Amanuel Tesera Alemu, Demewoz Kefale

“…Statistical significance was determined at a 5% level. All analyses were performed using STATA 17. …”
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Rapid Determination of Mercury Ions in Environmental Water Based on an N-Rich Covalent Organic Framework Potential Sensor by Jinjin Tian, Yulin Zhu

“…The proposed method can be successfully applied to the determination of Hg2+ in 3 typical environmental water samples, with a recovery rate of 98.6–101.8%. …”
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Determination of 10 organic acid contents in tea using high performance liquid chromatography-diode array detector by WANG Lili, YANG Junguo, LIN Qingxia, XIANG Lihui, SONG Zhenshuo, ZHANG Yinggen, CHEN Lin

“…It is appeared that the newly developed method can yield fine linear relationship, desirable precision, repeatability and separability for determinations of 10 organic acids in tea.…”
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Simultaneous determination of 7 thiols associated proteins in lymphoma patients’serum and cerebrospinal fluid by UHPLC-HRMS technique by Qingkun Ma, Mei Zhang, Yongshuai Fan, Han Zhao, Kun Wang, Xiaojing Wang, Yanling Mu

“…A highly sensitive and selective method was established for simultaneous determination of 7 different thiols and 340 related proteins based on self-developed mass spectrometry probe, Br-OTPP labeled by UHPLC-HRMS. …”
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Determination of Norfloxacin and Ciprofloxacin in Chicken Meat Based on Matrix Solid-Phase Dispersion Extraction and Capillary Zone Electrophoresis by Shihao Zhao, Hongru Zhao, Hai Zhu, Chengyao Li, Xinli Lu, Siyuan Bi

“…This study describes an effective matrix solid-phase dispersion (MSPD) extraction method for determining norfloxacin (NOR) and ciprofloxacin (CIP) in chicken meat by capillary zone electrophoresis (CZE). …”
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Anodic Determination of Acetylsalicylic Acid at a Mildly Oxidized Boron-Doped Diamond Electrode in Sodium Sulphate Medium by Codruţa Cofan, Ciprian Radovan

“…The association of DPV and CA techniques with standard addition method represented a suitable option for the determination of ASA in real samples such as pharmaceutical formulations.…”
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Using biomass to increase the efficiency of heat pump installations. by D. V. Petrov, R. E. Berezhnoy, V. V. Sakunov

“…The efficiency of a heat pump is determined by the thermal transformation coefficient, which is higher the higher the temperature of the low potential heat source (LPH). …”
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Determination оf Suitable Viscosity Models оf Oil-Water Emulsions in Eastern Siberia Fields by A. S. Drozdov, S. A. Leontiev

“…In models containing empirical coefficients, they were determined for various oils and temperatures.Conclusion. …”
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Optimal Training Positive Sample Size Determination for Deep Learning with a Validation on CBCT Image Caries Recognition by Yanlin Wang, Gang Li, Xinyue Zhang, Yue Wang, Zhenhao Zhang, Jupeng Li, Junqi Ma, Linghang Wang

“…<b>Methods</b>: An expected sensitivity (P_T) of 0.6 and a clinically acceptable sensitivity (P₀) of 0.5 were applied to the single-arm OPC calculation formula, yielding an optimal training set comprising 263 carious teeth. …”
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Determinants of dental caries in deciduous teeth among Iranian school children: Evidence from a developing country. by Bahareh Sadat Pezeshki, Awat Feizi, Bahareh Tahani

“…The correlation between factors was analyzed using Pearson and Spearman correlation coefficients. The multivariable associations of determinants were assessed using linear and logistic regression models (α = 0.05).…”
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Headspace Solid-Phase Microextraction Coupled to Comprehensive Two-Dimensional Gas Chromatography Time-of-Flight Mass Spectrometry for the Determination of Short-Chain Chlorinated... by Nan Zhan, Feng Guo, Shuai Zhu, Zhu Rao

“…The SCCP congener groups were best resolved using an Rxi-5Sil MS (30 m × 0.25 mm × 0.25 µm) column followed by an Rxi-17Sil MS (1.0 m × 0.15 mm × 0.15 µm) column; the optimum extraction conditions were achieved with a 100 µm polydimethylsiloxane SPME fiber, when a 10 mL water sample added with 3.6 g sodium chloride was incubated for 15 min at 90°C and then extracted during 60 min at 90°C and desorption at 260°C for 2 min. The proposed method showed good linearity in the concentration range of 0.2–20.0 µg/L with the determination coefficient greater than 0.995. …”
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"Non-destructive and rapid determination of bound styrene content of styrene-butadiene rubber latex using near-infrared spectroscopy" by LI Yan, ZHONG Ming-li, ZHU Shi-yong, CUI Jia-min, ZHANG Jian-ping, CHEN Shi-long

“…A non-destructive and rapid determination of bound styrene content in styrene-butadiene rubber latex was studied using near-infrared spectroscopy diffuse transmission method combined with chemometrics, bound styrene content in styrene-butadiene rubber latex was determined by refractive index method, near-infrared spectral data of styrene-butadiene rubber latex were collected using Fourier transform near-infrared spectrometer, Kennard-Stone algorithm was used to divide the calibration set and validation set, partial least squares regression quantitative analysis model was established by combining the spectral preprocessing methods, such as multiple scattering correction method, second-order derivatives and Norris smoothing, etc, and the influence of screening spectral feature variables by interval partial least squares algorithm on the quantitative ana-lysis model was finally investigated. …”
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Sound Absorption Efficiency of Plywood-Carbon Fiber Composites: A New Frontier in Wood Material Science by Hamit Özyurt

“…The sound absorption coefficients of the plywood and the composite materials were tested via the impedance tube method, according to ASTM standard E1050-98 (2006). …”
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Investigation of Formation Fluid During the Development of Fields on the Kara Sea Shelf by E. I. Inyakina, E. E. Levitina, K. O. Ryabikova, V. V. Inyakin

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Using the Technique for Order Preference by Similarity to Ideal Solution to Determine the Best Level of Hydrolysed Feather Powder in Broilers Diet by Hosna Hajati, Amir Hossein Alizadeh‐Ghamsari, Seied Abdoluah Hoseeini, Houshang Lotfollahian

“…Methods A total of five hundred Arian broiler chicks were used in a completely randomised design with 4 treatments, 5 replicates, and 25 chicks per replicate. …”
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Research on Monitoring Nitrogen Content of Soybean Based on Hyperspectral Imagery by Yakun Zhang, Mengxin Guan, Libo Wang, Xiahua Cui, Yafei Wang, Peng Li, Shaukat Ali, Fu Zhang

“…Three spectral characteristic variables selection methods, including correlation coefficient analysis, stepwise regression, and spectral index analysis, were used to determine the spectral characteristic variables that are closely related to the soybean canopy nitrogen content. …”
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The Effects of Gaps and Disparities on Economic Growth. A Study of 10 Former Socialist Countries from the CEE, Members of the EU by Marușa Pescu (Beca), Camelia Ștefan (Barabaș)

“…The goal of this research paper is to empirically assess the potential effects of macroeconomic determinants of economic growth and to determine the impact of income inequality on economic growth in the long-run in ten former socialist countries from Central and Eastern Europe (CEE) which are members of the European Union (EU) during the period 2006-2014, using the System Generalized Method of Moments (GMM) as the research method. …”
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Increasing stable operation of the working body in crank presses by K. O. Kobzev

“…From the point of view of increasing the operational stability of the working body in crank presses, the following factors are considered: response time, current friction factor and a change in torque under static and dynamic loading of the safety clutch.Materials and Methods. The response time of the SFC with differentiated friction pairs is determined. …”
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Heat Transfer Performance and Influencing Factors of Waste Tires During Pyrolysis in a Horizontal Rotary Furnace by Hongting Ma, Yang Bai, Shuo Ma, Zhipeng Zhou

“…Pyrolysis technology currently serves as a significant method for recycling and reducing waste tires. In this paper, in order to improve the heat transfer efficiency during the pyrolysis of waste tires in a horizontal rotary furnace and the yield of pyrolysis oil, the effect laws of tire particle size, rotary furnace rotation speed, enhanced heat transfer materials, and adding spiral fins on heat transfer performance and pyrolysis product distribution were studied, respectively. …”
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