Numerical Study of Surrounding Rock Damage in Deep-Buried Tunnels for Building-Integrated Underground Structures by Penglin Zhang, Chong Zhang, Weitao Chen, Chunhui He, Yang Liu, Zhaofei Chu

“…This study investigates the relationship between surrounding rock damage and in situ stress conditions through numerical simulation methods. A constitutive model suitable for simulating rock mass damage was developed and implemented in the LS-DYNA (version R12) code via a user-defined material model, with parameters determined using the Hoek–Brown failure criterion. …”
Get full text

Implementing Project-Based Learning: the Experience of a Military Medical Educational Organization by T. B. Sviridova, A. S. Lutikov, E. A. Goldina, N. N. Kamynina, Yu. V. Burkovskaya

“…The acquired skills can be successfully applied to professional activities.The article examines the successful implementation of project-based learning using the example of a military medical educational organization and determines positive aspects that can be used in other education sectors.The purpose of the study was to identify the advantages and disadvantages of project-based learning in comparison to traditional forms of education.Materials and methods. …”
Get full text

Lateral bearing characteristics of subsea wellhead assembly in the hydrate trial production engineering by Jing Zeng, Wen-wei Xie, Bei-bei Kou, Jing-an Lu, Xing-chen Li, De-jun Cai, Hao-xian Shi, Ke-wei Zhang, Hua-qing Liu, Jin Li, Bo Li

“…The field implementations show that compared with the first round of hydrate trial production project, the conductor running depth is increased by 9.42 m, and there is no risk of wellhead overturning during the trial production. The method for determining the minimum conductor running depth in this paper is feasible and will still play an important role in the subsequent hydrate exploration and development.©2023 China Geology Editorial Office.…”
Get full text

Techno-economic and environmental life cycle impacts of recycled concrete as fine aggregate in rendering mortar: a multi-criteria approach by Mohammed Rihan Maaze, Nikhil Garg, Sourav Kumar Das, Sandeep Shrivastava

“…The study introduced an LCA using SimaPro software and the Ecoinvent V3 database to quantify the environmental impact associated with different proportions of RCFA. The midpoint ReCiPe method assessed 18 environmental impact categories, while the Analytical Hierarchy Process (AHP) determined the optimal RCFA content through multi-criteria decision-making, considering mechanical, environmental, and economic factors. …”
Get full text

Development of recipes and technologies for producing functional desserts using sea buckthorn fruits by S. O. Nekrasova, A. V. Komarov

“…As a result of the research, the optimal amounts of ingredients in the recipes, the method and technology for the production of desserts have been determined. …”
Get full text

A Theoretical and Methodological Substantiation of the Approach to Assessing Ukraine’s National Security in the Post-War Period by Khaustova Viktoriia Ye., Trushkina Nataliia V.

“…However, these indices cannot provide a complete and accurate analysis of the level of national security and assess the efficiency of its provision system from methodological positions. …”
Get full text

Inverse estimation of the release rate of the heated pollutant source with strong convection and its application to the exhaust system design by Lei Cao, Yi Wang, Yanqiu Huang, Shengnan Guo, Junwei Guo, Yingke Zheng

“…Finally, compared to the calculation methods in the existing design manuals, the local exhaust system designed by the IESR method can efficiently capture the pollutants with a 46 % reduction in the exhaust flow rate. …”
Get full text

The full radiostereometric analysis migration pattern of tibial components is associated with aseptic loosening: introducing MTPMemax (MTPM estimated maximum) by Bart G. Pijls, Elise K. Laende

“…To assess model fit, intraclass correlation coefficients (ICCs) were calculated for the modelled MTPMemax and reported five-year MTPM values. …”
Get full text

Assessment of the Usability of a Composite Containing Boron Carbide for Shielding the Gamma Rays by Urkiye Akar Tarım

“…Gamma rays, one by one, followed by using cross sections and determining the probability of interaction with the composite from the point they are emitted until they leave the system (through escaping or absorption from the system) in the Monte Carlo code, which is written to determine the linear attenuation coefficient, mean free path, half value layer and tenth value layer, among the radiation shielding parameters of the composite under investigation. …”
Get full text

Specific Features of Calculating the Radiant Component of the Heat Flow of Horizontal Bunch from Finned Tubes with Exhaust Shaft by A. B. Sukhotski, G. S. Marshalova, Е. S. Danil’chik

“…The system of equations describing the entire set of primary processes that make up the radiation heat exchange of finned bundles is very complex mathematically; therefore, the calculations of radiant heat transfer are usually based on a number of simplifying assumptions with a involuntarily distortion of the real physical picture. The main methods for calculating radiation used in engineering practice, viz. calculation by the average angular coefficient and the zonal method are briefly considered. …”
Get full text

Environmental impact study of the sightseeing electric vehicle supply chain based on the B2C e-commerce model and LCA framework by Wei Xia, Chunjun Luo, Li Cai, Juan Yan, Xiaojiang Zhou, Yuan Zhang

“…Strengthening research on strategies or technologies for handling waste batteries and automobiles is key to improving the environmental performance of the supply chain. This method breaks through the requirements and limitations of traditional life cycle assessment methods on data sources and parameters, avoids large-scale calculations that cannot be separated from subjective factors in traditional methods, simplifies the process of supply chain environmental impact assessment, shortens the evaluation time, and improves the efficiency of environmental impact assessment. …”
Get full text

Biomechanical Analysis of <i>Camellia oleifera</i> Branches for Optimized Vibratory Harvesting by Rui Pan, Ziping Wan, Mingliang Wu, Shikui Lu, Lewei Tang

“…Four main varieties of <i>Camellia oleifera</i> were tested to determine their elastic modulus. The nonlinear least squares method, based on the hyperbolic tangent function, was employed to fit the bending load–deflection curves of the branches. …”
Get full text

Discussion on transient electromagnetic detection transmitting frequency of groundwater in fire-burned rock in Jundong coalfield by Qiang WANG, Fei LING, Siwei LI, Liqiang FAN, Yuan LIU, Peng WANG, Bo HE, Chao WANG, Xi ZHENG, YILIHAMUJIANG·Tuniyazi, Xudong FAN

“…In order to determine the optimal transmitting frequency when we use transient electromagnetic method to detect groundwater in fire-burned rock in Jundong Coalfield, theoretical analysis, forward and inverse calculation and field test are used to conduct comparative analysis on the effects of rising edge time, formation resistivity and transmitting frequency, respectively. …”
Get full text

Formwork material selection and optimization by a comprehensive integrated subjective–objective criteria weighting MCDM model by Tamene Taye Worku

“…Second, the uncorrelated MCDM method and criteria weight selected using correlation analysis and critical literature review. …”
Get full text

An interval-valued type 2 intuitionistic fuzzy theory-based approach to assess the biofuel production and adoption drivers in emerging economies: Implications for sustainability by Shah Murtoza Morshed, Md Shihab Shakur, Rafat Rahman, Mohammad Mynul Islam Mahin, Binoy Debnath, Arman Hossain Apu, Fairuz Al Nafiz, A.B.M. Mainul Bari

“…Specifically, it combines the interval-valued type 2 intuitionistic fuzzy (IVT2IF) theory and the decision-making trial and evaluation laboratory (DEMATEL) method to determine, rank, and assess the correlation among the drivers that affect the sustainable production and adoption of biofuel in emerging economies like Bangladesh. …”
Get full text

Evaluating Petrophysical Properties Using Digital Rock Physics Analysis: A CO₂ Storage Feasibility Study of Lithuanian Reservoirs by Shruti Malik, Pijus Makauskas, Ravi Sharma, Mayur Pal

“…Using micro X-ray computed tomography (MXCT) and multi-resolution scanning at 8 µm and 22 µm, digital rock volumes (DRVs) from core samples were created to determine porosity and permeability. The method, validated against analogous samples, identified a representative element volume (REV) within sub-volumes, showing a homogeneous distribution of petrophysical properties in the Lithuanian samples. …”
Get full text

Application of Monte Carlo Simulation for Calculating Power Generation with Exceeding Probability in Wind Farm by Hua LI, Binbin ZHANG, Yanjun DING

“…The Monte Carlo simulation method is scientific and efficient, and the results obtained have statistical significance.…”
Get full text

Bio-Inspired Thin-Walled Straight and Tapered Tubes with Variable Designs Subjected to Multiple Impact Angles for Building Constructions by Quanjin Ma, Nor Hazwani Mohd Yusof, Santosh Kumar Sahu, Yiheng Song, Nabilah Afiqah Mohd Radzuan, Bo Sun, Ahmad Yunus Nasution, Alagesan Praveen Kumar, Mohd Ruzaimi Mat Rejab

“…The crushing behaviors of the proposed thin-walled structures were examined for various wall thicknesses of 0.5 mm, 1.5 mm, and 2.5 mm and impact loading angles of 0°, 15°, 30°, and 45°. It was determined that the energy-absorbing characteristics of novel thin-walled structures can be efficiently controlled by varying two geometries and seven cross-section designs. …”
Get full text

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. …”
Get full text

Investigation of Heat and Mass Transfer in the Process of Fuel Preparation from Biomass Particles with High Moisture by A. V. Mitrofanov, O. B. Kolibaba, R. N. Gabitov, D. A. Dolinin, S. V. Vasilevich

“…In addition, the drying stage is extremely energy-consuming, so reliable prediction of its kinetics largely determines the efficiency of the entire technological process. …”
Get full text