Assessing the dynamics of the average capital cost of the largest Russian companies after 2022 by S. V. Korzhnev

“…The required return on equity has been calculated based on the data of public trading on the Moscow Interbank Currency Exchange using the CAPM model. …”
Get full text

Systematic Performance Evaluation of Shield TBM Cutters for Excavating Multiple Soft Rock by Chuyuan Cao, Kui Zhang

“…Performance indexes including cutting efficiency, structural strength, wear life, and dynamic response were individually analyzed based on linear cutting tests, finite element analyses, and theoretical calculations. Finally, a case study was carried out to demonstrate how the method is applied to find the optimal cutter among a small-scale disc cutter and two scrapers used for cutting multiple soft rock. …”
Get full text

Design and Numerical Investigation on Octagonal Barge-Type FOWT with Counterweight Suspension System by Yung-Chun Sun, Ray-Yeng Yang

“…It uses SolidWorks for modeling, Ansys AQWA for hydrodynamic calculations, and Orcina OrcaFlex for wind/wave/current coupling dynamic analysis. …”
Get full text

Operation and Economic Analysis for Ring Road: Baqubah City as Case Study by Raquim Nihad Zehawi, Ali Hussein Hameed, Yassir Nashaat A Kareem

“…The net present value calculations revealed the values of $50,399,966 and $43,991,883 for the second and third segments, respectively.…”
Get full text

Loop-induced masses for the first two generations with optimum flavour violation by Gurucharan Mohanta, Ketan M. Patel

“…Further improvements are possible at the cost of the down quark mass deviating more than 3σ from its value extracted from lattice calculations. Options for inducing tiny masses for light neutrinos are also discussed.…”
Get full text

Research on the Extraction Algorithm of Dielectric Parameters of Simple Building by Zhongyu Liu, Yuanxi Wang, Lixin Guo, Zhigang Zhong, Zuoyong Nan, Lingfeng Shen, Jiangting Li

“…The root mean square error (RMSE) between the theoretically calculated reflection coefficient and the measured reflection coefficient ranges from 0.013 to 0.025, while the RMSE ranges from 0.047 to 0.066 if the dielectric parameters recommended by ITU-R P.2040-3 are used, thus confirming the accuracy and reliability of the proposed method for dielectric parameters extraction.…”
Get full text

The Influence of Multimedia Input Mode Based on Complex System Discrete Model on College Students’ English Ability by Xiaoge Wang, Weihong Zhao, Yuanyuan Xu

“…The final result also realizes the data scale and greatly shortens the calculation time. This study has greatly improved the accuracy of the impact of multimedia on Chinese college students’ English ability in practical application.…”
Get full text

The Political Economy of the Gifts on Tiktok by Cristina-Oana Cristea

“…Secondly, the platform monitors and calculates the gifts obtained by influencers to remunerate them, acting like a real bureaucracy that classifies and ranks users according to their actions. …”
Get full text

Comparison of video laryngoscope and direct laryngoscope for endotracheal intubation across different body mass index categories: A prospective study by Gulay Esen, Arzu Acikel

“…During intubation, data on the number of tubes used, number of anesthetists attempting intubation, number of alternative techniques employed, C-L score (C-L), laryngoscopy suspension power, application of external pressure, and vocal cord imaging were recorded, and IDS was calculated. Notable variations were detected in mouth opening, thyromental distance, and C-L and IDS levels across different laryngoscopy methods. …”
Get full text

Development and Application of 3D Excavation Design Software Based on Microstation Platform in Water Resources and Hydropower Projects by LYU Bin, FU Zhihao

“…In order to realize the rapid modeling,quantity calculation,drawing and annotation in the 3D excavation design of water resources and hydropower projects,based on the MicroStation platform,and the .Net-based Addins secondary development method,this paper proposes a design solution,with the development language of C# as the priority,and C++/CLI package as a supplement,including 7 modules of general type,sloping type,auxiliary type,profile type,statistics type,annotation type and earth-rock dam,to meet the functional requirements of the entire excavation design process.Its application on multiple projects shows that the quality of design software and the design efficiency are obviously superior to similar software as follows:①For the design software,the real-time three-dimensional display is,more accurate to express the design intent,the plan and section drawings,and related excavation and support quantities are all extracted from the 3D model.The accuracy of both drawing expression and quantity is better than two-dimensional design;②Compared with traditional methods,the efficiency of excavation design,quantity extraction,and base drawing is improved by more than 70%,and that of drawing is increased by more than 50%.The software development framework,function realization ideas and key technology research are of significant reference for similar projects.…”
Get full text

Research on the Influence of Composite Modification Design on Tooth Surface Wear of Transmission Gears by Bai Xiaoning, Li Yonghua, Wang Denglong, Zhang Dongxu

“…According to the Archard wear model, tooth wear is calculated. The threshold and the permissible gear wear are used as the criteria to reconfigure and modify the gear tooth. …”
Get full text

Research of Inverse Kinematics Algorithm of 6 DOF Manipulator based on Geometry with Arm Adjacent Three Joints Axes Parallel by Wang Yang, Wang Ben, Mai Xiaoming

“…The merit of this method is that，by utilizing the geometrical relation between the end-effector，hand and wrist of the manipulator determined by its structure，the position of the wrist corresponding to a desired end-effector orientation and position can be solved at the first step in the whole calculation process. And then，the solution of a 6-variable equations，which describes the relationship between the 6 joint positions of the manipulator and its end-effector orientation and position is reduced into two 3-variable equations，one of which describes the relationship between the wrist position and the positions of 3 joints distributed in the shoulder and elbow，and the other describes the relationship between the end-effector orientation and the positions of the rest 3 joint distributed in the wrist. …”
Get full text

Effectiveness Evaluation of Levamisole, Albendazole, Ivermectin, and Vernonia amygdalina in West African Dwarf Goats by Oyeduntan A. Adediran, Emmanuel C. Uwalaka

“…Faecal egg count reduction (FECR) test was carried out for each group and the data analysed using FECR version 4 to calculate percent reduction in faecal egg count. Predominant helminth infections from larval culture were Haemonchus contortus (70%), Trichostrongylus spp. (61%), and Oesophagostomum spp. (56%). …”
Get full text

DETERMINISTIC MULTI-OBJECTIVE LIGHTWEIGHT DESIGN OF C-BEAM BASED ON RESPONSE SURFACE AND GENETIC ALGORITHM by CHEN HaoRan, XIANG ZhongKe, CHENG WenMing, XIANG FeiFei

“…Firstly,based on parameterized calculating system,the finite element model that is in line with the actual working condition was established. …”
Get full text

Research on Forest Carbon Sequestration Based on FSC Model and DeepAR Algorithm by Yin-di Xu

“…This paper clarifies that forest carbon sequestration is mainly influenced by three aspects: human, climate, and nonclimatic physical factors, constructs a model for estimating the carbon sequestration rate of forest ecosystems based on forest age and the logistic growth equation, and combines human behaviour and climate influencing factors to make comprehensive corrections to the carbon sequestration rate of forest ecosystems per unit area. A model for calculating the carbon sequestration rate over time in a forest system was developed, which combined with the DeepAR Algorithm to obtain carbon sequestration. …”
Get full text

Effective dimensionality of space-time in f(R)-general relativity with quantum boundary terms included by Mauricio Bellini

“…To illustrate the theory, we calculate exactly the cosmological parameter in an early inflationary universe.…”
Get full text

Beam Performance Optimization of Multibeam Imaging Sonar Based on the Hybrid Algorithm of Binary Particle Swarm Optimization and Convex Optimization by Weijie Xia, Xue Jin, Fawang Dou

“…Results show that, for a sparse semicircular array with multiple patterns, the hybrid algorithm can obtain a lower PSLL compared with existing methods and it consumes less calculation time in comparison with other hybrid algorithms.…”
Get full text

Dynamic Model Test Based on Shaking Table of Wudongde High Arch Dam by XIONG Kun, HU Qingyi, CAO Quxiu

“…At present,there are few examples of high arch dams subjected to earthquakes in China and abroad,and there is a lack of sufficient and effective observation data of prototype seismic damage.Based on the shaking table dynamic model test,the seismic behaviors and damage process are studied for the 270 m-high Wudongde arch dam.The dam’s seismic failure mode of the dam body and structural seismically weak parts under strong earthquakes are compared and its seismic safety is evaluated.The results show that the model test analysis can obtain natural vibration characteristics and dynamic responses such as acceleration,dynamic strain,and transverse joint aperture under earthquakes,which are consistent with the numerical calculation results.Under extremely strong earthquakes,there are local cracks with limited extension depth near the foundation surface of the dam.The main damage area lies in the middle and upper part of the dam body,and horizontal macroscopic cracks occur in the area within about 1/3 of the height below the dam crest connecting the upstream and downstream.It is proved that the Wudongde high arch dam has a better stress condition,a smaller transverse joint aperture,and a higher ultimate seismic capacity under the design and calibrated earthquakes.…”
Get full text

DQN-based energy-efficient routing algorithm in software-defined data centers by Zan Yao, Ying Wang, Xuesong Qiu

“…Compared with the solver and the CERA heuristic algorithm, energy-saving effect of the deep Q-network-based energy-efficient routing algorithm is almost the same as the heuristic algorithm; however, its calculation time is reduced a lot, especially in a large number of flow scenarios; and it is more flexible to design and resolve the multi-objective optimization problem.…”
Get full text

Does Türkiye Have a Demographic Dividend? NUTS 2 Analysis by Seda Ertürk, Selçuk Koç

“…In this study, the demographic dividend for 2023-2050 in NUTS 2 regions of Turkey with different fertility rates is calculated by projection analysis. According to the results of the study, it is estimated that Turkey entered the demographic dividend process in 2023 and may peak in 2036-2037. …”
Get full text