Determination of Substructure and Sub-ballast Layer Thickness of High-Speed Railway by Tran Anh DUNG, Pham Van KY, Le Hai HA

“…Using analytical methods, calculations were performed to determine optimal trackbed thickness. …”
Get full text

DETERMINATION OF PRIORITY QUALITATIVE FACTORS OF STIMULATION OF THE WORK OF ENTERPRISE TOP MANAGERS by Lyudmula Malyarets, Olena Iastremska, Anastasiia Tutova

“…The subject of the article is the theoretical provisions, methodological support, and practical proposals for economic incentives for managers of the strategic level of administration at industrial enterprises. Methods. To achieve the goal, the article used the following basic general and special research methods: theoretical generalization, questionnaire survey, descriptive statistics tools, Spearman rank correlation coefficient, multivariate factor analysis, method for calculating the integral index of qualitative factors of managers' labor stimulation, graphical method. …”
Get full text

Simultaneous Determination of Candesartan and Hydrochlorothiazide in Human Plasma by HPLC-MS/MS by P. K. Karnakova, T. N. Komarov, O. A. Archakova, D. S. Shchelgacheva, A. A. Aleshina, N. S. Bagaeva, P. A. Karpova, I. E. Shohin

“…The aim of this study is to develop a method for quantitative determination of candesartan and hydrochlorothiazide in human plasma by high-performance liquid chromatography – tandem mass spectrometry (HPLC-MS/MS) for further bioequivalence studies.Materials and methods. …”
Get full text

AERODYNAMICS OF INDUSTRIAL BUILDINGS by V. Petrov, D. Gоncharenko, O. Zhdanov

“…The correspondence of the general picture of the pressure distribution along the wall in the circumferential direction when the aerodynamic coefficient changes is established. Determined wind loads on structural elements of industrial buildings. …”
Get full text

Determination of S-genotypes of 13 Chinese pear cultivars based on sequence analysis by ZHANG Lin, TAN Xiao-feng, YUAN De-yi, LI Xiu-gen, LIANG Wen-jie

Get full text

Performance evaluation of key energy-saving technologies in public institutions based on heat pump system in cold regions by Xin Liu, Xin Lai, Kailiang Huang, Hua Li, Guohui Feng, Zixiang Zhao, Shuai Hao

“…Research on the application of key energy-saving technologies in public institutions is an effective method to improve building energy efficiency and reduce energy wastage. …”
Get full text

Modeling and Performance Analysis of Variable Cycle Engine with Ceramic Matrix Composite Turbine Blades by Baokuo Li, Sheng Huang, Huaixu Yan, Xiaobo Zhang, Kun Du, Zhanxue Wang

Get full text

Design and Experiment of a Vertical Cotton Stalk Crushing and Returning Machine with Large and Small Dual-Blade Discs by Xiaohu Guo, Bin Li, Yang Liu, Shiguo Wang, Zhong Tang, Yuncheng Dong, Xiangxin Liu

“…The machine employs a differentiated configuration of large and small blade discs corresponding to four and two rows of cotton stalks, respectively, effectively reducing tool workload while significantly improving operational efficiency. A simulation model of the crushing and returning machine was developed using the discrete element method (DEM), and a flexible cotton stalk model was established to systematically investigate the effects of machine forward speed, crushing blade rotational speed, and knife tip-to-ground clearance on operational performance. …”
Get full text

Designing streets for people: a multicriteria decision-making study by Luiz Fernando Kowalski, Érico Masiero, António Manuel Saraiva Lopes, Marcos dos Santos, Carlos Francisco Simões Gomes, Dragiša Stanujkić

“…Conversely, AHP-Gaussian incorporates a sensitivity feature that lets decision-makers assign weights based on statistical analysis. Despite each method's limitations, both are suitable for urban projects, estimating decisions based on multiple technical aspects, thereby promoting more integrated and efficient choices.…”
Get full text

Health system determinants of access to essential medicines for children with cancer in Ghana by Avram Denburg, Sumit Gupta, Rhonda Boateng, Lorna Renner, Kadia Petricca

“…Background Evidence of the context-specific challenges related to childhood cancer drug (CCD) access is vital to improving outcomes for children with cancer in low- and middle-income countries, such as Ghana. We sought to determine the availability and cost of essential CCD in Ghana and identify the underlying determinants of access.Methods Our study integrated quantitative data on drug prices and availability with qualitative insights into health system and sociopolitical determinants of CCD access in Ghana. …”
Get full text

Determination and ecological risk assessment of phthalic acid esters in marine sediments by HU Hongmei, LI Tiejun, ZHANG Lu, HAO Qing, SUN Xiumei, JIN Yanjian, YING Zhongzhen, GUO Yuanming

“…We proposed a new method for the determination of 16 phthalic acid esters (PAEs) in marine sediments using gas chromatography-mass spectrometry (GC-MS) combined with ultrasonic extraction and dispersive solid phase extraction cleanup. …”
Get full text

The Spectrophotometric Determination of Famotidine Drug via Coupling with Diazotized Metochlopramide Hydrochloride by Baghdad Science Journal

“…A new, simple and sensitive spectrophotometric method was described for the determination of famotidine (FAM) as a pure material and in pharmaceutical formulation. …”
Get full text

An indirect competitive ELISA for determination of guanidine acetic acid in animal feed by Xingdong Yang, Lili Li, Yang Qu, Lihua Wu, Chenchen Wang, Beibei He, Zhenchun Zang, Xiaofei Hu

“…The indirect competitive ELISA method developed in this study was able to fulfil the requirements for the determination of GAA r esidues in animal feed.…”
Get full text

Analysis of the concordance between the estimated values of creatinine clearance using the Cockcroft-Gault equation and the real value determined in patients from the Hospital Cl... by Jose Miguel Chaverri-Fernández, Esteban Zavaleta-Monestel, Jose Pablo Díaz-Madriz, Angie Ortiz-Ureña, Monica Ramírez-Hernández, Karina Trejos- Morales

“…The real and estimated values of creatinine clearance were determined, and their concordance was measured by applying the Intraclass Correlation Coefficient; a descriptive analysis of data was also conducted. …”
Get full text

Quantitative Determination of Fluoroquinolones in Contaminated Soils by HPLC with Solid-Phase Extraction by bashar hussin qassim

“…The relative standard deviation (RSD) from intra-day and inter-day precision was lower than 7%, and the detection (LOD) and quantification (LOQ) limits ranged from 0.9 – 2.7ng g-1.Finally, the proposed method was applied to determine the target compounds in real soil samples irrigated with wastewater. …”
Get full text

MODELS FOR DETERMINING MAXIMUM DEGREE FILLING CHANNELS OF CIRCULAR SECTION SHAPE by A. K. Alibekov, G. A. Аlibekov

“…Objectives The task was to obtain a model for determining the maximum possible degree of filling the circular section channels in the earthen channel based on the condition of ensuring the stability of slopes and the minimum volume of excavation during their construction, as well as finding the optimum degree of filling fortified channels of a closed profile corresponding to maximum throughput.Method In work analytical methods of differential calculus and the solution of implicit equations are used.Result The experience of domestic and foreign researchers was taken into account to solve the set tasks, select research methods and criteria for optimizing channel parameters. …”
Get full text

Simultaneous Determination of Lead and cadmium in Environmental Samples Using Zinc-diethyldithiocarbamates by Bashar Qasim

“…In this study, a simple, rapid and selective spectrophotometric method with solid phase extraction method has been described for the simultaneous determination of lead (Pb) and cadmium (Cd) in environmental samples using a freshly precipitated zinc-diethyldithiocarbamate (Zn-(DDTC)2) as a reagent. …”
Get full text

Uncertainty analysis of initial orbit determination in the minimum radar admissible region by Yasheng Zhang, Jinyan Xue, Xuefeng Tao, Shuailong Zhao

“…The MRAR can contain the real orbit state with a probability greater than 99.7%; the weight coefficients of each sampling point in the MRAR are calculated by using the Bayesian formula, and the probability density function of the IOD is obtained by using the weighted kernel density estimation method. …”
Get full text

Spectrophotometric Determination for Salbutamol Sulphate drug by Oxidation Coupling with 4-Aminoantipyrine by Asmaa Ahmed Mohammed

“…The results of statistical treatment of linear concentration range  (0.4- 40) µg/ml are: r= 0.9984, Detection limit = 0.0317 µg/ml and Molar absorption coefficient =19028 L/mol.cm , This method is applied successfully for the  determination drug in pharmaceutical formulation with ratio 1:1. …”
Get full text

Research on subway settlement prediction based on the WTD-PSR combination and GSM-SVR model by Miren Rong, Chao Feng, Yinping Pang, Hailong Wang, Ying Yuan, Wensong Zhang, Lanxin Luo

“…By comparing the prediction accuracy of the seven models, the results show that the Grid Search Method optimized SVR model performs the best in the light of prediction accuracy, with a Mean Absolute Percentage Error (MAPE) of 2.96%, a Mean Absolute Error (MAE) of 0.028 mm, a Root Mean Square Error (RMSE) of 0.032 mm, and a coefficient of determination (R2) of 0.995. …”
Get full text