Frequency-Domain-Based Nonlinear Response Analysis of Stationary Ring Displacement of Noncontact Mechanical Seal by Dian Feng Sun, Jian Jun Sun, Chen Bo Ma, Qiu Ping Yu

“…Based on the analysis of the response results, the parameter (stationary ring mass, axial damping, stiffness, etc.) selection scheme of noncontact mechanical seals at high and low frequencies was obtained.…”
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Coordinated Control of ESP-SAS System Considering Roll by Peng Wang, Yuan Ge, Shanggui Cao, Chao Han, Ping Yang, Zhichao Zhang

“…Through the adjustment of ESP yaw moment and the timely matching of SAS damping force, the antiroll performance of the vehicle is optimized. …”
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Study on Vibration and Bifurcation of an Aeroengine Rotor System with Elastic Ring Squeeze Film Damper by Guoying Pang, Shuqian Cao, Yushu Chen, Huizheng Chen

“…Considering the oil film stiffness and damping of rolling bearings, the rolling bearing force model is established based on the elastohydrodynamic lubrication (EHL) theory. …”
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Transparency, nonclassicality, and nonreciprocity in chiral waveguide quantum electrodynamics by Qingtian Miao, G. S. Agarwal

“…Values of g^{(2)}(0) less than unity can be reached even for nonzero value of the intrinsic damping by using phase separation different from integer multiple of π, marking the transition from classical to quantum light. …”
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Nonlinear Vibration Mechanism of the Marine Rotating Machinery with Airbag Isolation Device under Heaving Motion by Xiaolei Du, Ming Li

“…Then, the multiple-scale method is conducted to analyze the nonlinear dynamic characteristics of the mechanical system; the frequency-response curves are mainly studied under different parameters, such as the heave excitation, rotor speed, and damping; and the numerical method is also introduced to analyze its dynamic behaviors, such as the steady-state response and its corresponding phase diagram, Poincaré section. …”
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Optimal Design Parameters of a Percussive Drilling System for Efficiency Improvement by Changheon Song, Jintai Chung, Jae-Sang Cho, Yun-Joo Nam

“…Next, the damping vibration behavior of the bit is investigated considering the impact duration and the rock loading/unloading condition. …”
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Blow-up solutions to the semilinear wave equation with overdamping term by Liu, Miaomiao, Guo, Bin

“…This article deals with the Cauchy problem to the following damped wave equation \begin{equation*} {\left\lbrace \begin{array}{ll} u_{tt}-\Delta u+b(t) u_t=M(u),~&(t,x)\in R^{+}\times R^{N},\\ u(0,x)=u_0(x),~u_t(0,x)=u_1(x),~&x\in R^{N}, \end{array}\right.}CP \end{equation*} with the focusing nonlinearity $M(u)=|u|^{p-1}u,~p>1.$ For the focusing nonlinearity $M(u)=\pm |u|^{p},~p>1,$ Ikeda and Wakasugi in [8] have showed that the solution to Problem (CP) exists globally for small data and fails to exist globally for large data. …”
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A Numerical Approach to the Dynamic Response of the Deployment System during a Circular Cylinder Crossing through the Wave Zone by Xiaozhou Hu, Daojun Cai, Yiyao Jiang

“…To generate regular waves, a numerical wave tank is built based on a piston-type wave generation method and a wave damping method applying porous media. Numerical simulations are performed based on the cosimulation platform. …”
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Review of Lightweight Vibration Isolation Technologies for Marine Power Devices by Yuanran Qiu, Wei Xu, Zechao Hu, Junqiang Fu, Mengxuan He

“…Then, it systematically sorts out the technical methods and application examples with potential to solve the overweight problem, such as dynamic optimization design, lightweight material method, novel intermediate mass structures, distributed dynamic vibration absorbers (DDVAs), locally resonant structures (LRS), particle damping (PD), quasizero stiffness isolators (QZSI), and active vibration control (AVC) technologies. …”
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Le système d’information sur la biodiversité de l’administration des parcs nationaux argentins by Leonidas Lizarraga, Miguel Gross, Fabiana Cantarell, Ana Laura Sureda, Mariana Campos, Viviana Benesovsky, Natalia Ceresoli, Mariana Lipori, Maximiliano Ceballos, Anabella Carp, Jael Dominino, Dalma Raymundi, Daniel Barrios Lamuniere, Atilio Guzman, Lorena Paszko

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Evaluating the safety and the effect of blast loading on the shotcrete together with lattice girder support of tunnels by Hamidreza Karimi Tabar, Farnoosh Basaligheh, Majid Nikkhah

“…Damage to tunnels caused by explosions may damage the support structure and the stability. …”
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Bayesian Inference of Ammunition Consumption Based on Normal-Inverse Gamma Distribution by Haobang Liu, Xianming Shi, Xiaojuan Chen, Yuan Li, Mei Zhao, Yongchao Jiang

“…To address the problems of high cost of new ammunition experiment, few data of field test and low accuracy of consumption prediction, this article proposes a Bayesian estimation method of ammunition consumption based on normal-inverse gamma distribution, and estimates the hyperparameters in the prior distribution through the prior information from the consumption of ammunition under different damage degrees of point targets, based on the normal distribution phenomenon of ammunition consumption at each damage degree. …”
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Study on the Hydro-Thermal-Mechanical Characteristics of the Lime-Soil Compaction Pile in the Forming Process by Fengchuan Zhang, Jianhua Dong, Xiaoyu Yang, Bo Lian, Xuelang Wang

“…The formula of radial stress distribution under damage conditions is given. The influence of different damage factors on the expansion process is analyzed.…”
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Features of clinical course, diagnostics and surgical treatment of a giant left atrial myxoma with subsequent mitral valve insufficiency by R.M. Vitovskyi, V.P. Zakharova, I.V. Martyshchenko, M.O. Tregubova, V.V. Isaenko, A.V. Kupchinsky

“…Undoubtedly, mitral valve regurgitation and cusp damage were tricky to determine due to large size of the tumor and its proximity to the damaged cusp. …”
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Corrosion Monitoring and Evaluation of Reinforced Concrete Structures Utilizing the Ultrasonic Guided Wave Technique by Dongsheng Li, Shuaifang Zhang, Wei Yang, Wenyao Zhang

“…A dearth of studies has focused on the corrosion damage evolution of reinforced concrete. In this paper, the ultrasonic guided wave (UGW) technique is adopted to monitor the reinforced concrete corrosion damage evolution process. …”
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Selección de bandas e índices espectrales relacionados con la profundidad efectiva de los suelos en la región Pampeana Austral de Argentina by Franco Frolla, J.P. Zilio, H. Kruger

“…Se utilizaron 180 a 190 capas de información derivadas de bandas e índices espectrales del satélite LANDSAT 5 TM durante el período 1992-2011, provenientes de seis campos de producción agrícola-ganadera. En dichos campos se realizaron observaciones de profundidad efectiva del suelo (PES) y se seleccionaron las escenas que presentaron mayor correlación. …”
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A construção multissemiótica do herdeiro da esperança na política pernambucana by Gustavo Leonardo Barreto Silva, Douglas da Silva Tavares

“… Por meio de um diálogo entre a Sociologia Política e a Semiótica Social, o presente trabalho busca estudar a multimodalidade enquanto estratégia discursiva em textos produzidos para as campanhas políticas do candidato João Campos nas eleições de 2018 e 2020. Tal candidato é conhecido como “herdeiro político” de nomes famosos da cena pernambucana, como Miguel Arraes e Eduardo Campos. …”
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Transformer-Based Model for Monocular Visual Odometry: A Video Understanding Approach by Andre O. Francani, Marcos R. O. A. Maximo

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Design of Satellite Attitude Control Algorithm Based on the SDRE Method Using Gas Jets and Reaction Wheels by Luiz C. G. de Souza, Victor M. R. Arena

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Pain Management for Nerve Injury following Dental Implant Surgery at Tokyo Dental College Hospital by Ken-ichi Fukuda, Tatsuya Ichinohe, Yuzuru Kaneko

“…And once a nerve has been injured, the chances of a full recovery are slim unless the damage is only slight. If such damage causes neuropathic pain severe enough to prevent sleep, the patient’s QOL will deteriorate dramatically. …”
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