The Coupling Dynamic Analysis and Field Test of TBM Main System under Multipoint Impact Excitation by Junzhou Huo, Hanyang Wu, Guangqing Li, Wei Sun, Jing Chen

“…Damage by excessive vibration is serious engineering problem in TBM boring process. …”
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Time-Varying Total Stiffness Matrix of a Rigid Machine Spindle-Angular Contact Ball Bearings Assembly: Theory and Analytical/Experimental Verifications by Fawzi M.A. El-Saeidy

“…A lagrangian formulation is presented for the total dynamic stiffness and damping matrices of a rigid rotor carrying noncentral rigid disk and supported on angular contact ball bearings (ACBBs). …”
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Optimization of Magnesium Alloy Wheel Dynamic Impact Performance by Xin Jiang, Hai Liu, Rui Lyu, Yoshio Fukushima, Naoki Kawada, Zhenglai Zhang, Dongying Ju

“…Damping test methods were designed to establish the damping performance parameters of the magnesium alloy material. …”
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Punica granatum L. (Pomegranate) Extract: In Vivo Study of Antimicrobial Activity against Porphyromonas gingivalis in Galleria mellonella Model by Livia Aparecida Procópio Gomes, Lívia Mara Alves Figueiredo, Ana Luiza do Rosário Palma, Barbara Maria Corrêa Geraldo, Kelly Cristine Isler Castro, Luciana Ruano de Oliveira Fugisaki, Antônio Olavo Cardoso Jorge, Luciane Dias de Oliveira, Juliana Campos Junqueira

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Effect of Graphite Nanosheets on Properties of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) by Larissa Stieven Montagna, Thaís Larissa do Amaral Montanheiro, João Paulo Barros Machado, Fábio Roberto Passador, Ana Paula Lemes, Mirabel Cerqueira Rezende

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Low-Level Laser Therapy and Calcitonin in Bone Repair: Densitometric Analysis by Tatiana Pinto Ribeiro, Simone Bustamante Nascimento, Claúdia Alessandra Cardoso, Raduan Hage, Janete Dias Almeida, Emilia Angela Loschiavo Arisawa

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Persea americana Glycolic Extract: In Vitro Study of Antimicrobial Activity against Candida albicans Biofilm and Cytotoxicity Evaluation by D. Jesus, J. R. Oliveira, F. E. Oliveira, K. C. Higa, J. C. Junqueira, A. O. C. Jorge, G. N. Back-Brito, L. D. Oliveira

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Viscous Damper Optimization in Low-Rise Adjacent Buildings Exposed to Earthquakes by Considering the Soil-Structure Interaction by Ahmed Ali Abdulqader Farhad, Ersin Aydın

“…Different analyses are performed by changing the total damping coefficient considering the 1st and 2nd modes of the coupled models of adjacent structures. …”
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Unbalance Response Prediction for Rotors on Ball Bearings Using Speed- and Load-Dependent Nonlinear Bearing Stiffness by David P. Fleming, J. V. Poplawski

“…A moderate amount of damping will eliminate the bistable region, but this damping is not inherent in ball bearings.…”
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Dynamic Model of MR Dampers Based on a Hysteretic Magnetic Circuit by Pengfei Guo, Jing Xie, Xinchun Guan

“…The lag of damping force even exists in a low-frequency varying magnetic field and becomes more severe in the presence of eddy currents.…”
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Effect of Mean Grain Size on the Small-Strain Dynamic Properties of Calcareous Sand by Liwei Wen

“…The shear modulus and damping ratio are two important parameters for earthquake ground response analysis and liquefaction evaluation. …”
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Some aspects of ion-acoustic whistlers in the ionosphere in the presence of negative ions by A. K. Sur, G. C. Das, B. Chakraborty, S. N. Paul, L. Debnath

“…Special attention is given to the group travel time of whistlers at mid-latitude and equator so that the role of negative ions on the group travel time can be determined. The cyclotron damping of whistlers in the presence of negative ions has been studied. …”
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A Fast Imaging Technique Applied to 2D Electrical Resistivity Data by Raffaele Martorana, Patrizia Capizzi

“…An implementation of this technique is proposed here, considering a two-step approach. Initially a damped least squares solution is obtained after a full matrix inversion of the linearized geoelectrical problem. …”
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Modeling and Analysis of Static and Dynamic Characteristics of Nonlinear Seat Suspension for Off-Road Vehicles by Zhenhua Yan, Bing Zhu, Xuefei Li, Guoqiang Wang

“…The displacement transmissibility curve corresponds with the static characteristic curve of nonlinear suspension, where the middle part of the static characteristic curve is gentler and the resonance frequency of the displacement transmissibility curve and the isolation minimum frequency are lower. Damping should correspond with static characteristics, in which the corresponding suspension damping value should be smaller given a flatter static characteristic curve to prevent vibration isolation performance reduction.…”
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Numerical Study of the Active Tendon Control of a Cable-Stayed Bridge in a Construction Phase by M. H. El Ouni, N. Ben Kahla

“…Both cable and deck vibrations are attractively damped.…”
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Thermoacoustic Stability Boundaries in the Model Combustion Chamber with a Gas-Centered Swirl Coaxial Injector by Yong Ho Min, Chae Hoon Sohn, Youngbin Yoon

“…Stability boundaries are identified in terms of damping factor for the 63 tests by experiments without external perturbations. …”
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High Loaded Mounts for Vibration Control Using Magnetorheological Fluids: Review of Design Configuration by Xuan Phu Do, Seung-Bok Choi

“…In order for analysis, the field-dependent damping force equations for typical cross sections of mounts are firstly investigated while maintaining original equations of these cross sections. …”
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Nonlinear Frequency Response Analysis of Double-helical Gear Pair Based on the Incremental Harmonic Balance Method by Hao Dong, Libang Wang, Haoqin Zhang, Xiao-long Zhao

“…At the same time, the influence of time-varying meshing stiffness, damping, static transmission error, and external load excitation on the amplitude frequency characteristics of the system was analyzed. …”
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Nanocarbons Reinforcement Effect into Polyethylene Nanocomposites: γ‑Ray Attenuation Potential and Hardness Improvement by the Taguchi Method by Thais Cardoso Oliveira, Evelyn Alves Nunes Simonetti, Luciana Simone Cividanes

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Study of the Compressive Strength of Mortars as a Function of Material Composition, Workability, and Specimen Geometry by M. T. Marvila, A. R. G. Azevedo, J. Alexandre, C. M. F. Vieira, E. B. Zanelato, G. C. G. Delaqua, G. C. Xavier, S. N. Monteiro

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