Three-dimensional finite element analysis of maxillary molar distalization treated with clear aligners combined with different traction methods by Hongyu Gao, Liangyu Luo, Jun Liu

“…Group 3 showed smaller changes in anterior teeth torque and higher molar distalization efficiency compared to group 2. …”
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Comparing Biomechanical Risk Factors of Anterior Cruciate Ligament Injury of Elite Female Soccer Players During the Shearing Maneuver and Header on the Natural Grass and Artificial... by Yasamin Alipour Ataabadi, Heydar Sadeghi, Mohammad Hosein Alizadeh, Mehdi Khaleghi

“…Given the high prevalence of noncontact injuries among female soccer players and high contribution of the Anterior Cruciate Ligament (ACL) injury, this research was conducted to compare biomechanical risk factors in the incidence of ACL injury for elite female soccer players during shearing maneuver and header on the natural grass and artificial turf fields.Methods: Sixteen players were selected from U-14 women’s national team by the convenience sampling method and started to perform the skills. …”
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MULTI-AXIAL FATIGUE LIFE PREDICTION METHOD OF WORKING ROLL NECK BEARING SECTION BASED ON STRAIN ENERGY by JIN Kai, QIN Xiaofeng, WANG Yong, QU Haixia, LI Shuojie, QIN Zhuoyang, XIE Weihang, MA Feiyang

“…The bearing section of the work roll neck often suffers burnout failure due to bearing seizure, and additive manufacturing is usually used in the field to repair it.Life prediction of the repaired roll neck is the key to predict the safe service of the work roll in the field production and carry out overhaul，but there is a lack of research on the related issues.In view of the above problems, the stress analysis and multi-axis life prediction of the working roll neck bearing section of the four-high mill were carried out.Based on the SIMS model and the influence function method, the rolling force and the stress between the rolls were calculated.The moment balance equation of the roll neck end was established in the bearing section, and the bending stress model of the roll neck bearing section was established.The deformation resistance was regarded as the plastic deformation energy per unit volume to calculate the rolling torque in the deformation zone, and the torsional shear stress model of the roll neck bearing section was established.Using the first strength theory, the equivalent stress was obtained by combining the bending stress and the torsional shear stress.On the basis of proving the calculation accuracy of the model, the multi-axis fatigue model was used to predict the fatigue life of the roll neck bearing section, and compared with the service life of the actual roll in the production line.The results show that the stress calculation model of the working roll neck bearing section of the four-high mill is in line with the actual stress state of the roll neck.The error between the expected service life predicted by the theoretical model and the actual service life is less than 20%, which meets the actual engineering error requirements.…”
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Investigation of The Effect of Design Variables on Slip Assembly: Spline Module and Slip Length by Hüseyin Özgürler, Mert Can Kahyalar, Onur Şen

“…Thus, the analytical method can be preferred instead of the finite element analysis (FEA), especially considering that the FEA is a time consuming method compared to the analytical method in the design process.…”
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A data-driven control method for ground locomotion on sloped terrain of a hybrid aerial-ground robot by Xinhang Xu, Yizhuo Yang, Muqing Cao, Thien-Minh Nguyen, Kun Cao, Lihua Xie

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Research on Radial Vibration Model and Low-Frequency Vibration Suppression Method in PMSM by Injecting Multiple Symmetric Harmonic Currents by Le Kang, He Zhang, Jiakuan Xia, Meijun Qi, Yunqi Zhao

“…Experimental results of this method are compared with those obtained using an ideal sinusoidal current. …”
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Posture Control of Hydraulic Flexible Second-Order Manipulators Based on Adaptive Integral Terminal Variable-Structure Predictive Method by Jianliang Xu, Zhen Sui, Feng Xu

“…Simulation experiments comparing the DITSMPC scheme with the classical discrete-time SMC method demonstrate that the proposed scheme results in smooth torque changes in each joint of the manipulator, with the integral of torque variations being <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>5.22</mn><mo>×</mo><msup><mrow><mn>10</mn></mrow><mn>3</mn></msup></mrow></semantics></math></inline-formula>. …”
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Fault Diagnosis Method for Main Pump Motor Shielding Sleeve Based on Attention Mechanism and Multi-Source Data Fusion by Nengqing Liu, Xuewei Xiang, Hui Li, Zhi Chen, Peng Jiang

“…This method takes the measurable data (torque, rotational speed, voltage, and current) of the main pump motor operation as input signals. …”
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Creatine monohydrate versus creatine hydrochloride on strength and body composition in elite team-sport athletes: A placebo-controlled randomized clinical trial comparing low dosag... by Daniel Londoño-Velásquez, Yuliana Zuluaga-Narváez, Luis Rojas-Posada, Maximiliano Kammerer-López, Óscar M. Cardona-Arenas, Olga L. Quiroz-Bastidas, Mario A. Quintero-Velásquez, Andrés Rojas-Jaramillo, Richard B. Kreider, Diego A. Bonilla

“…This three-arm triple-blind placebo-controlled randomized clinical trial aimed to compare the effects of low-dose CrM and CrHCl supplementation on strength and body composition in elite team-sport athletes.Methods A total of 31 male and female team-sport athletes (handball and softball players), aged 18–28 years, were randomly assigned to consume 5 g/day of creatine monohydrate (CrM) (n = 11), creatine hydrochloride (Cr-HCl) (n = 10), or placebo (maltodextrin) (n = 10). …”
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A biomechanical investigation of three fixation methods for unilateral denis type II sacral fractures using finite element analysis by Peishuai Zhao, Renjie Li, Jiaqiang Chen, Yongsheng Wang, Jianzhong Guan, Min Wu

“…By applying three different fixation methods, it aims to explore their biomechanical properties and provide a theoretical basis for optimizing clinical fixation protocols.MethodsA ligament-intact three-dimensional finite-element model of a right-sided Denis type II sacral fracture, including ipsilateral superior and inferior pubic rami fractures, was generated. …”
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Multi-source data based refined transient modelling and analysis method for thermal performance of precision machine tool feed system by Yingjie Zheng, Lingtao Weng, Yuhong Dai, Yutao Fu, Kai Shi, Zheng Wang, Weiguo Gao, Dawei Zhang, Tian Huang

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Excavation Face Stability Analysis of EPB Shield in Half-Chamber Tunneling Mode by ZHENG Weigang, ZHANG Tao, WU Xinglin, LI Hailong, ZHANG Hongzhi, CHEN Peng, SHU Jicheng

“…Thus, it is necessary to study the excavation face stability issue of EPB shield in half-chamber tunneling mode. ［Method］ Based on the upper limit theorem of the limit analysis method, a 3D logarithmic spiral failure model considering half-chamber support mode is proposed. …”
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Research on the Sugarcane Stubble Chopping Mechanism of an Ultra-Deep Vertical Rotary Tillage Cutter Based on FEM-SPH Coupling Method by Wang Yang, Huangsheng Lu, Xiong Xiao, Zhengkai Luo, Weilong Dai, Zhiheng Lu

“…The results show that, when comparing the simulation with the field test, the magnitude and variation of the cutter’s torque curves are relatively consistent, the relative error of the topsoil fragmentation rate is 9.5%, the entire cultivated layer of soil fragmentation rate is 11.3%, and the average number of times the stubble stem was cut off is closer; thus, the modeling method of the simulation model is reasonable and accurate. …”
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Performance analysis of permanent magnet synchronous motor based on transfer function model using PID controller tuned by Ziegler-Nichols method by V Ramanaiah Nippatla, Srihari Mandava

“…The ZN method provides the distinctive dynamic speed response and also analyzes peak overshoot, settling time and steady-state error which are 1.677 %, 1.133 s and 1.16 times respectively, compared to the Gradient Descent (GD) algorithm. …”
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Effects of a J-Shaped Blade on the Performance of a Vertical-Axis Wind Turbine Using the Improved Delayed Detached Eddy Simulation Method by Tengyue Zhang, Gang Wang, Quanzheng Li

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An Autoregressive-Based Motor Current Signature Analysis Approach for Fault Diagnosis of Electric Motor-Driven Mechanisms by Roberto Diversi, Alice Lenzi, Nicolò Speciale, Matteo Barbieri

“…The AR PSD is then continuously or periodically updated with new data frames and compared to the reference PSD through the Symmetric Itakura–Saito spectral distance (SISSD). …”
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Biomechanical evaluation of oblique lateral interbody fusion with various fixation methods for degenerative lumbar scoliosis: a finite element analysis considering different bone d... by Wei Guo, Wei Guo, Zemin Wang, Zemin Wang, Meina Song, Wei Yang, Honglai Zhang, Wanzhong Yang, Shiyong Wang, Rong Ma, Rong Ma, Zhaohui Ge, Zhaohui Ge

“…The range of motion (ROM) of the surgical segment, the stress distribution of the Cage, endplate, and internal fixation, as well as the peak Von Mises stress, were evaluated by applying a vertical downward load of 400N and a torque of 7.5N·m in different directions.ResultsUnder different bone densities, compared to the PLIF model, the ROM of the surgical segment in the OLIF-SA model was significantly increased, whereas the ROM in the OLIF-UPSF and OLIF-BPSF models was similar to or lower than that of the PLIF. …”
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Design Optimization and Performance Investigation of a Micro Wind Turbine for Domestic Dwelling Used for Renewable Generation System by Wissam K. Abbas, Majid Abbasalizadeh, Shahram Khalilarya

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Automatic strip layout design in progressive dies using the grouping genetic algorithm by Mehran Afshari, Behrooz Arezoo

“…The performance of the present algorithm is compared with the methods of other researchers and the results indicate that the proposed algorithm performance is improved in the tested cases.…”
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Improved sliding mode control for induction motor based on twisting algorithm by Hadda Benderradji, Samira Benaicha, Larbi Chrifi Alaoui

“…We designed and implemented two robust sliding mode (SM) techniques to achieve high-performance control of induction motor drive; the second-order sliding mode (SOSM) approach using the twisting algorithm was compared with the classical sliding mode control. The method of decoupling electromagnetic torque and rotor flux for the induction motor was derived from the rotor field orientation control in the synchronous reference frame. …”
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