Novel, low-cost bioreactor for in vitro electrical stimulation of cardiac cells by Joseph P. Licata, Jonathan A. Gerstenhaber, Peter I. Lelkes

“…However, there are discrepancies in the literature as to best practices for promoting cardiac differentiation using ES.MethodsThis study presents a novel, 3D printed bioreactor that delivers in vitro ES to human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs), promoting cell maturity and functional readiness for implantation. Finite element analysis and mathematical modeling were used to model the fluid dynamics and to characterize in detail the delivery of pulsatile electrical signals, providing precise control over stimulation parameters such as voltage, current, and charge.ResultsThe bioreactor developed here provides an easy-to-use, inexpensive platform for culturing hiPSC-CMs under the influence of ES and low-shear fluid flow for enhanced nutrient availability, while its “drop-in” design facilitates real-time observation of cultured cells. …”
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Numerical Investigation on Head and Brain Injuries Caused by Windshield Impact on Riders Using Electric Self-Balancing Scooters by Shi Shang, Yanting Zheng, Ming Shen, Xianfeng Yang, Jun Xu

“…Numerical vehicle ESS crash scenarios are constructed by combining the finite element (FE) vehicle model and multibody scooter/rider models. …”
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Enhancement of punching shear behavior of reinforced concrete flat slabs using GFRP grating by Ahmed Mahmoud, Haitham Mostafa, Tarek Mostafa, Ahmed Khater

“…Test results revealed an improvement in the ultimate load ranging between 9.03% and 27.67% for the specimens strengthened by the proposed GFRP grating system. A Nonlinear Finite Element Analysis (NLFEA) was carried out using the ANSYS program with correlational evaluation using load-deflection response and cracking pattern, which resulted in a good convergence of numerical simulations and experimental performance results ranging from 1.0% to 8.0%. …”
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Elastoplastic mechanical behavior analysis of surface-coated Zircaloy-4 cladding under multi-field coupling by Xin Wang, Ze Xu, Yulan Liu, Biao Wang

“…The elastoplastic mechanical behavior of Zircaloy-4 (Zr-4) cladding, coated with chromium (Cr) or FeCrAl on its surface, is explored under the coupled effects of multi-field coupling. Utilizing the Finite Element Software ABAQUS, simulations are conducted to calculate the evolution of stress and strain over two complete fuel cycles. …”
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Optimizing Invasive ECT Sensor Dimensions for Conducting Pipe: A Simulation Study by Ain Eazriena Che Man, Yasmin Abdul Wahab, Nurhafizah Abu Talip Yusof, Suzanna Ridzuan Aw, Mohd Mawardi Saari, Ruzairi Abdul Rahim, Sia Yee Yu

“…A simulation model is developed using the finite element method (FEM) and the Linear Back Projection (LBP) algorithm for image reconstruction, further enhanced by a global threshold method. …”
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Study of the slant fracture in solid and hollow cylinders: Experimental analysis and numerical prediction by Nassima Ben Chabane, Nassim Aguechari, Mohand Ould Ouali

“…The two models have been implemented into the finite element code Abaqus/Explicit using a Vectorized User MATerial (VUMAT) subroutine. …”
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The Influence of the Motor Traction Vibration on Fatigue Life of the Bogie Frame of the Metro Vehicle by Qiushi Wang, Jinsong Zhou, Dao Gong, Tengfei Wang, Jiangxue Chen, Taiwen You, Zhanfei Zhang

“…To illustrate the influence of the motor vibration on the fatigue life of the bogie frame, a metro vehicle was taken as an example: first, the precise finite element model of the frame was established, and its correctness was verified; then, the vibration characteristics of the frame were analyzed by sweep frequency calculation; and finally, considering the vibration acceleration signal of the motor measured on a metro line as the excitation, the influence of the random vibration on the fatigue life of the frame under traction and idle running conditions was compared and analyzed by solving the power spectral density of the dynamic stress response at the weak fatigue nodes of the structure. …”
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Fast dynamical simulation combining harmonic-modal hybrid formulations with space separated representations by Claudia Germoso, Sebastian Rodriguez, Angelo Pasquale, Francisco Chinesta

“…These examples highlight the method's capability to handle high-resolution 3D problems efficiently, reducing it to a sequence of 1D or 2D problems, enabling significant computational time savings compared to the Finite Element Method (FEM).…”
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Assessment of the Feasibility of Using a Synchronous Homopolar Motor Instead of an Induction Motor in a Traction Drive With a Wide Constant Power Speed Range by Vladimir Prakht, Vladimir Dmitrievskii, Vadim Kazakbaev, Eduard Valeev, Aleksey Paramonov, Alecksey Anuchin

“…The study employs the downhill simplex method for optimization and the finite element method. The study shows that the benefits of SHM include reduced active material costs and improved motor and inverter reliability.…”
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Detection of petrochemicals using photonic crystal fiber (PCF) in terahertz domain by Md. Anowar Kabir, Md. Selim Hossain, Ashik Muhammed Arman, Md. Al-Amin, Shuvo Sen

“…Pure petrol, kerosene, and diesel are poured into the hexahedron core hole. The Finite element Method (FEM) is handled for the simulation and precise calculation and investigation. …”
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The Earth-Mars Transfer Trajectory Optimization of Solar Sail Based on hp-Adaptive Pseudospectral Method by Yufei Guo, Dongzhu Feng, Xin Wang, Cong Li, Yunzhao Liu

“…The hp-adaptive pseudospectral method combines the global pseudospectral method with the finite element method, which adopts double layer optimization strategy to solve the optimal control problem and has higher computational efficiency and accuracy than the traditional global pseudospectral method. …”
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Study on Impact of Turbine Location on Hydrodynamics in Tidal Farm by Hongqiang Zhang, Daming Li, Yanqing Li, Ting Yang, Shan Luo, Shunfa Tian, Shilong Bu

“…Also a 2-D tidal model of far-field flow was established, and Finite Element Method was adopted to solve the 2-D shallow water circulation equations; thus, the impact of tidal turbine could be simulated by utilizing different location’s compositive roughness. …”
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Analysis of accuracy of Williams series approximation of stress field in cracked body – influence of area of interest around crack-tip on multi-parameter regression performance by J. Sobek, P. Frantík, V. Veselý

“…Determination of coefficients of terms of this series is performed using a least squares-based regression technique known as over-deterministic method (ODM) for which results from finite element (FE) method computation are usually taken as inputs. …”
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Classification of RTV-coated porcelain insulator condition under different profiles and levels of pollution by Ali Ahmed Salem, Samir Ahmed Al-Gailani, Abdulrahman Ahmed Ghaleb Amer, Mohammad Alsharef, Mohit Bajaj, Ievgen Zaitsev, Razali Ngah, Sherif S. M. Ghoneim

“…The criteria, which are the flashover voltage (x1), fifth to third harmonics of leakage current (x2), maximum electric field (x3), total harmonic index (x4), insulation resistance (x5) and dielectric loss (x6), were proposed for evaluating the insulator’s string condition. The finite element method (FEM) was used to simulate an electric field. …”
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Improving P-Doped DBRs Operation at Cryogenic Temperatures: Investigating Different Mirror Geometry by Behzad Namvar, Topi Uusitalo, Heikki Virtanen, Mircea Guina, Jukka Viheriala

“…To determine the actual temperature of an operating p-doped DBR and its impact on the behavior of the DBRs and the cryo-VCSEL, a thermal simulation using the finite-element method was conducted and validated with experimental results. …”
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Ballistic performance of lightweight ceramic-metal composite armour plates under blunt projectile impact by Hasan Aftab Saeed, Yasser Riaz Awan, Hamza Saleem Khan, Abdur Rehman Mazhar, Shahid Aziz, Dong-Won Jung

“…In the present work, nonlinear finite element analysis is used to find the ballistic performance of various combinations of composite bi-layered armours of Weldox 460 E, AA7075-T6, and SiC impacted by blunt projectiles with velocities ranging from 100 - 400 m/s. …”
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Numerical Simulation of Thermo-Hydro-Mechanical Coupling of Model Test for Nuclear Waste Disposal by Yu-Ping Wang, Zhe Wang, Fa-Cheng Yi, Lei Fu, Ying Luo

“…Using the buffer material Mock-up test of multi-field coupling as a model, the partial differential equation (PDE) module in the general finite element software COMSOL Multiphysics was developed by a second development stage. …”
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Investigation on the fracture toughness of a low-density δ-quenching and partitioning steel sheet by Z.L. Li, D.D. Cui, Y.S. Zhang, D. Chen, L. Gao, X.Q. Wang, X.W. Li

“…On the whole, the QP1180 sample exhibits the highest fracture toughness across different ligament lengths, primarily due to its uniform microstructure and more remarkable transformation-induced plasticity effect. Finite element simulation further verifies the strain distribution characteristics during deformation. …”
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Modelling and measurements of thermally induced residual stress in IN718 nickel-based superalloy during non-uniform quenching by S. Rahimi, M. King, M. Amir Siddiq, B.P. Wynne

“…The HTCs have then been implemented in an elastic–plastic finite-element model, which included temperature dependant thermo-mechanical properties to predict thermally induced residual stress fields during heterogeneous water/air quenching from. …”
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Effects of Oblique Incidence of SV Waves on Nonlinear Seismic Response of a Lined Arched Tunnel by Dunyu Lyu, Sha Ma, Chu Yu, Congcong Liu, Xiaowei Wang, Buyun Yang, Ming Xiao

“…The method is programed into a dynamic finite element program and its effectiveness is examined by a numerical example. …”
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