Threshold Dynamics of a Huanglongbing Model with Logistic Growth in Periodic Environments by Jianping Wang, Shujing Gao, Yueli Luo, Dehui Xie

“…Furthermore, numerical simulations support our analytical conclusions and the sensitive analysis on the basic reproduction number to the changes of average and amplitude values of the recruitment function of citrus are shown. …”
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Low-Rank Variational Quantum Algorithm for the Dynamics of Open Quantum Systems by Sara Santos, Xinyu Song, Vincenzo Savona

“…The simulation of many-body open quantum systems is key to solving numerous outstanding problems in physics, chemistry, material science, and in the development of quantum technologies. …”
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Forecasting Equatorial Ionospheric Convective Instability With ICON Satellite Measurements by D. L. Hysell, A. Kirchman, B. J. Harding, R. A. Heelis, S. L. England

“…Abstract Measurements from the Ionospheric Connections Explorer satellite (ICON) form the basis of direct numerical forecast simulations of plasma convective instability in the postsunset equatorial F region ionosphere. …”
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Effect of Braking Conditions on Wear Loss of the Disc Drake Pad by Zhao Xiaohui, Huan Kaixuan, Zhang Zhijie, Yang Wenbin, Hu Sheng

“…In order to investigate the effect of braking conditions on the wear loss of disc brake pads, using Ansys Workbench simulation software, the wear simulation model was built based on the Archard wear model; Archard wear commands were added through the APDL command flow to realize the wear simulation of the brake pad, so as to analyze and calculate the wear loss of the brake pad. …”
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Characteristic Analysis and Prediction of Rainfall and Runoff in Ankang Section of Hanjiang River Basin by LIU Yiwen, LI Jiake, DING Qiang, HAO Gairui

“…Accurate runoff simulation plays a very important role in the planning and management of water resources.However,traditional methods have some limitations in the simulation of runoff near peaks and abrupt points.This paper identifies the abrupt change components of rainfall and runoff in the basins above the controlled section of Ankang Hydrological Station in the Hanjiang River Basin through the Mann-Kendall test.analyzes the trend and cycle of the rainfall and runoff by R/S analysis and wavelet analysis,simulates the runoff series with the partial least squares regression (PLSR) and BP neural network-partial least squares regression (BP-PLSR),and analyzes the simulation effect of runoff near peaks and abrupt points.The results show that:The abrupt points of rainfall appear in 1973,1984 and 2002;and those of runoff appear in 1977 and 1985.The Hurst index of rainfall and runoff is close to 0,indicating that there will be an anti-continuous trend in the future.The simulation effect of BP-PLSR on runoff (RMSE=92.863,NSE=0.797) is better than PLSR (RMSE=152.182,NSE=0.456),and preprocessing the original data by BP can better avoid the over-fitting and local optimization near the abrupt points.…”
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The Application of Equivalent Age Concept to Sand Concrete Compared to Ordinary Concrete by Nabil Bella, Ilham Aguida Bella, Aissa Asroun

“…In this research the equivalent age concept was used, in order to simulate strength development of heat treated sand concrete compared with ordinary concrete at different temperature, 35, 55, and 70°C, and validate the simulation results with our experimental results. …”
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Research of Design of Spindle Transmission System of Peeling Machine for Large Diameter Stainless Steel Bar by Mei Chao Qu Yinhu Qi Zhixu Cheng Xiaole Liu Xiaoni Zhang Xueshuo He Xuan

“…The gear engagement process of the spindle transmission system is simulated by simulating the rotating speed of the gears at all levels of the spindle transmission system and setting the contact force parameters of the gears. …”
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Effect of the Subsurface Drain Parameters on Water-salt Transport Based on HYDRUS-2D by LIU Luyao, ZHANG Jinlong, ZHANG Kai, JIA Lin, ZHANG Di, NIE Axiu

“…In order to study the effect of the subsurface drain parameters on water-salt transport,this paper performs the field test in typical experimental area selected from Binhai New Area of Tianjin,China,calibrates and verifies the simulation effect of HYDRUS-2D by experimental data,and simulates the water-salt transport under different subsurface drain parameters by the validated model.The simulation results show that:HYDRUS-2D can well simulate water-salt transport of soil under the condition of subsurface drainage.When the depth of subsurface drains is kept unchanged,the larger the subsurface drains is spaced,the higher the water and salt are contained in the soil after leaching.When the spacing of subsurface drains is kept unchanged,the deeper the subsurface drains are,the lower the water and salt are contained in the soil after leaching.Among the 12 simulated subsurface drain scenarios,under the combined parameters of 140 cm depth (maximum) and 300 cm spacing (minimum),the salt of soil profile is 0.47~7.81 g/kg (minimum).Therefore,when the subsurface drain technology is applied to the improvement of saline-alkali soil,it is necessary to reduce the spacing of the subsurface drains or increase the depth of the subsurface drains to improve the leaching effect.…”
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A New Mathematical Modeling with Optimal Control Strategy for the Dynamics of Population of Diabetics and Its Complications with Effect of Behavioral Factors by Abdelfatah Kouidere, Abderrahim Labzai, Hanane Ferjouchia, Omar Balatif, Mostafa Rachik

“…Finally, some numerical simulations are performed to verify the theoretical analysis using MATLAB.…”
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RESEARCH ON ACCURATE MODELING OF HYDROSTATIC MOTORIZED SPINDLE BASED ON RESPONSE SURFACE OPTIMIZATION ALGORITHM by SHEN ZhiDong, DU Xiong, LI HaoLin, CAO WenJie, CUI Yi

“…By using ANSYS Workbench simulation analysis software, load the optimized convective heat transfer coefficient into the simulation model to solve the temperature field of the hydrostatic motorized spindle to solve the temperature field of the hydrostatic motorized spindle. …”
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Loading on a Rigid Target from Close Proximity Underwater Explosions by Mark Riley, Malcolm Smith, J.E. van Aanhold, Niklas Alin

“…The study describes recent simulation results for underwater explosions in close-proximity to rigid targets. …”
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Correction of TRMM 3B42V7 Based on Linear Regression Models over China by Shaohua Liu, Denghua Yan, Tianling Qin, Baisha Weng, Meng Li

“…High temporal-spatial precipitation is necessary for hydrological simulation and water resource management, and remotely sensed precipitation products (RSPPs) play a key role in supporting high temporal-spatial precipitation, especially in sparse gauge regions. …”
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Study on the Behaviors of a Conceptual Passive Containment Cooling System by Jianjun Wang, Xueqing Guo, Shengzhi Yu, Baowei Cai, Zhongning Sun, Changqi Yan

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Assessment of Using Field‐Aligned Currents to Drive the Global Ionosphere Thermosphere Model: A Case Study for the 2013 St Patrick’s Day Geomagnetic Storm by Qingyu Zhu, Gang Lu, Astrid Maute, Yue Deng, Brian Anderson

“…However, the FAC‐driven simulation yields relatively larger data‐model discrepancies compared to the AMIE‐driven GITM simulation. …”
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Comparing Three Approaches to the Inducing Source Setting for the Ground Electromagnetic Field Modeling due to Space Weather Events by Elena Marshalko, Mikhail Kruglyakov, Alexey Kuvshinov, Liisa Juusola, Norah Kaggwa Kwagala, Elena Sokolova, Vyacheslav Pilipenko

“…This motivates the necessity to numerically simulate and, ultimately, forecast GIC. The prerequisite for the GIC modeling in the region of interest is the simulation of the ground geoelectric field (GEF) in the same region. …”
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A Discrete Mathematical Modeling and Optimal Control of the Rumor Propagation in Online Social Network by Amine El Bhih, Rachid Ghazzali, Soukaina Ben Rhila, Mostafa Rachik, Adil El Alami Laaroussi

“…To illustrate the theoretical results obtained, we propose numerical simulations for several scenarios applying the forward-backward sweep method (FBSM) to solve our optimality system in an iterative process.…”
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Using Continuum-Discontinuum Element Method to Model the Foliation-Affected Fracturing in Rock Brazilian Test by Qunlei Zhang, Zihan Zhi, Chun Feng, Ruixia Li, Jinchao Yue, Junyu Cong

“…Furtherly, simulation results were verified, and the rock fracture mechanisms were discussed. …”
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The Stress Calculation Methods of Antislide Structures with Continuous Ladders by Gong Chen, Qiang Xu

“…The trends of the structural stress determined with the analytical methods and numerical simulation methods were similar. The ultimate results of the analytical methods and the ultimate results of the numerical simulation methods were also similar. …”
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Drought characteristics and propagation under anthropogenic impacts: A regional-scale modelling analysis in four Large Basins of China by Haoran Hao, Ningpeng Dong, Mingxiang Yang, Xin Huang, Hejia Wang, Hao Wang

“…New hydrological insights for the region: The model accurately simulates the SSI under human impacts, with a correlation coefficient ranging from 0.78 to 0.93. …”
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Quantitative Characterization of Overburden Rock Development Pattern in the Goaf at Different Key Stratum Locations Based on DEM by Xiaoqiang Zhang, Bolin Hu, Jiaxing Zou, Chuandong Liu, Yuanfan Ji

“…In order to verify the accuracy of the numerical simulation, similar material simulation experiments were performed under the same scheme. …”
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