Mechanism of Roadway Floor Heave Controlled by Floor Corner Pile in Deep Roadway under High Horizontal Stress by Xinchao Kang, Dongming Guo, Zhiying Lu

“…Based on the solution of the slip line field under plane strain condition, the mechanical model of the slip-type floor heave is established, and the formula for calculating the critical failure depth of the roadway floor and the minimum support depth of the corner pile is derived. Through numerical analysis and similar model tests, the deformation and stress distribution of surrounding rock under the support of the corner piles are studied, and the force law of the pile under high horizontal stress is analyzed. …”
Get full text

Formation Mechanism and Stability Analysis of the Hejia Landslide by Hao Zhang, Zaiqiang Hu, Xingzhou Chen, Hongru Li

“…Through field investigation and analysis of regional geological conditions, it is concluded that Hejia landslide is a large-scale landslide, through long-term sliding-bending deformation; it is generated from the external hard rock with thick layers and sliding zone for layered soft rock; the formation mechanism of landslide is as follows: (1) high-steep and hard-soft layered slope is the slope structure condition that caused the large landslide; (2) the existence of thick soft rock belt provides material conditions for the formation of slip surface; (3) certain air conditions provide displacement space for the separation and disintegration of the sliding body, and the landslide is stable at present. Numerical analysis results show that reservoir impoundment will adversely affect the stability of landslide. …”
Get full text

Analysis of the Seismic Performance of a Two-Span Specially Shaped Column Frame by Zhen-chao Teng, Tian-jia Zhao, Yu Liu

“…The effects of concrete strength, reinforcement ratio, and axial compression ratio on the seismic performance of the building incorporating such columns were studied. The numerical analysis was performed for a ten-frame structure with specially shaped columns under low reversed cyclic loading. …”
Get full text

Development of a Hybridized Model for Predicting the Life Span of Power Transformers by O.O. Olaluwoye, A.A. Okubanjo, O.K. Oyetola, P.O. Alao, O.G. Olasunkanmi

“…These parameters were used in developing a DP model using Jacobi and Gauss Seidel numerical analysis iterative techniques. The techniques were implemented in Matrix Laboratory 8.2 (R2013b)  environment. …”
Get full text

Analyses of the Design of Multirows Vaneless Staggered Counter-Rotating Turbine by Zhongye Wu, Yukun Zhang, Qingfen Ma, Jingru Li

“…In order to verify the design method, two-dimensional throughflow design, blade design, and three-dimensional numerical analysis are performed. Expansion ratios and efficiency at the speed combinations of the 80% to 105% are discussed to reveal the turbine characteristics at off-design conditions. …”
Get full text

Bionic Design of Wind Turbine Blade Based on Long-Eared Owl’s Airfoil by Weijun Tian, Zhen Yang, Qi Zhang, Jiyue Wang, Ming Li, Yi Ma, Qian Cong

“…Glauert Model was adopted to design the standard blade and the bionic blade, respectively. Numerical analysis method was utilized to study the aerodynamic characteristics of the airfoils as well as the blades. …”
Get full text

Digital Twin-Based Modeling of Complex Systems for Smart Aging by Yiyi Deng

“…The validation results demonstrate the system’s excellence in information interaction, optimization of numerical analysis, and display of results for smart aging.…”
Get full text

A Time Scheduling Model of Logistics Service Supply Chain Based on the Customer Order Decoupling Point: A Perspective from the Constant Service Operation Time by Weihua Liu, Yi Yang, Haitao Xu, Xiaoyan Liu, Yijia Wang, Zhicheng Liang

“…Matlab 7.8 software is used in the numerical analysis for a specific example. Results show that the order completion time of the LSSC can be delayed or be ahead of schedule but cannot be infinitely advanced or infinitely delayed. …”
Get full text

Experimental and Numerical Evaluation of the Ablation Process of Carbon/Carbon Composites Using High Velocity Oxygen Fuel System by Xueling Fan, Peng Jiang, Biao Li, Xiaochao Jin, Yong Zhao

“…The microstructures of C/C composites were characterized and the numerical analysis was performed. Two typical ablation morphologies of the carbon fibers, which are drum-like and needle-like shapes, were observed depending on the alignments of fibers to the flame directions. …”
Get full text

Extended properties of nonlinear power system models that are symmetrically configured in the narrow sense by Elior Segev, Vladimir Zhuk, Elinor Ginzburg-Ganz, Juri Belikov, Yoash Levron

“…This property leads to dynamic models that are linear and time-invariant in the dq0 reference frame, or at least suitable for low-complexity numerical analysis, which is crucial when studying large-scale power systems. …”
Get full text

Numerical Study on Aerodynamic Characteristics of H-Darrieus Wind Turbine with Blunt Trailing-edge Airfoil by Z. Kong, X. Sun

“…A comprehensive series of numerical analysis was conducted to assess the impact of BTE airfoil design variables, including trailing-edge thickness and baseline configuration, on the power generation capabilities of the H-type VAWT. …”
Get full text

The Interaction of Iteration Error and Stability for Linear Partial Differential Equations Coupled through an Interface by B. Sheehan, D. Estep, S. Tavener, J. Cary, S. Kruger, A. Hakim, A. Pletzer, J. Carlsson, S. Vadlamani

“…There exists a significant and sophisticated numerical analysis of such methods. However, computations for practical applications are often carried out under conditions under which it is unclear if rigorous results apply while relatively few iterations are used per time step. …”
Get full text

Investigation on Mechanical and Microstructure Properties of Steel Fiber Reinforced Concrete by Qinyuan Zhang, Wenwen Xu, Yichen Sun, Yongcheng Ji

“…According to the law of micro-cracks, the deterioration degree was judged, and a numerical analysis model was established to quantify the reliability of the structure with different fiber content. …”
Get full text

Exploring Students’ Numerical Literacy on Statistical Problem-Solving in Indonesia by Ika Santia, Aprilia Dwi Handayani

“…Fifth, subjects with medium numerical literacy skills should get training on numeracy literacy-based questions to improve their numerical analysis skills. Sixth, subjects with medium numerical literacy skills could conclude the solution correctly and tend to reflect on the process before concluding a final solution. …”
Get full text

Embedded Connector in Severe Optimization of Steel Plate for Shear Strengthening of RC Beam: Experimental and Numerical Investigations by Md. Ashraful Alam, Suliman A. Bakkar, Shahnawaz A. Onik, Kamal N. Mustapha

“…However, premature debonding of plates is the main drawback of the system, which could be mitigated using embedded connector; thus, the dimension of steel plate could be reduced significantly. Furthermore, numerical analysis on shear strengthening of beams using embedded connector would provide a great insight on the structural behavior. …”
Get full text

Experimental and Numerical Investigation of Temperature Development of Ohmic Heating Cured Nonmass Concrete under Subzero Temperature by Beimeng Qi, Zheng Zhou, Weichen Tian, Mingzhe Ouyang, Xiaocheng Wang, Qiang Shi, Ye Wang, Yang Sun, Wei Wang

“…COMSOL analysis results showed that the optimal loading power density of OH cured sample under −20°C was 1000 W/m2∼1200 W/m2. Moreover, numerical analysis results were experimentally validated by the multipoint temperature measurement method. …”
Get full text

Thermal energy storage materials designed from recycled Tetra Pak waste and paraffin waxes with enhanced photothermal conversion efficiencies by Safna Nishad, Mabrouk Ouederni, Igor Krupa

“…The prepared composites exhibited enhanced thermal conductivity (1.1–1.15 W/m °C), heat storage capacity (98.5–105.6 J/g), and photothermal conversion efficiency (85 % and 55 % for composites with RT44 and RT64, respectively). The numerical analysis conducted on a validated model helped to estimate the optimum composite thickness for specific solar exposure time. …”
Get full text

A Model for Vehicle Routing Problem under Returns and Emission Consideration in B2C E-Commerce Logistics by Sedat Belbağ

“…A clustering-based solution algorithm has been introduced to solve large-sized instances within reasonable solution times.Findings: The numerical analysis for the base case shows that the suggested model can assist decision-makers in coordinating forward distribution and reverse collection decisions within the context of sustainable e-commerce logistics. …”
Get full text

Optimal Control Problem of Treatment for Obesity in a Closed Population by D. Aldila, N. Rarasati, N. Nuraini, E. Soewono

“…With control rates are continuous in time, an optimal control approach was applied into the model to find the best way to minimize the number of overweight and obese people. Some numerical analysis and simulations for optimal control of the intervention were shown to support the analytical results.…”
Get full text

The Effect of Fairness Concern on Carbon Emission Reduction and Revenue Distribution in Construction Supply Chain: Power Structure Perspective by Wen Jiang, Linqing Pu, Ting Huang, Li Yuan, Lu Gan

“…This paper constructs the centralized model and the decentralized models, respectively, and studies the emission reduction and revenue distribution strategies of construction supply chain considering fairness concern and cap-and-trade. Numerical analysis is carried out to analyze the influence of cap-and-trade and fairness concern on the optimal decision and the maximum profit of construction supply chain. …”
Get full text