Effects of temperature on mechanical properties and impact resistance of carbon fiber/bismaleimide resin composites by Xinying Zhu, Shikai Yin, Lulu Liu, Wenzhao Yi, Gang Luo, Zhenhua Zhao, Wei Chen

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Formulating the in-plane frictional resistances and collapse mechanisms for multi-storey masonry block walls by Luca Umberto Argiento, Alessandra Maione, Claudia Casapulla

“…The kinematic approach of limit analysis is used to define the load factor causing the onset of rocking-sliding mechanism under in-plane horizontal loading. A dry frictional contact condition is assumed at the rigid block interfaces, according to the Coulomb's law with non-associated flow rule. …”
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Effect of the Interaction between Cavities and Flaws on Rock Mechanical Properties under Uniaxial Compression by Jianwang Li, Yu Zhou, Wei Sun, Zheng Sun

“…Cavities and flaws are common types of defects in rock specimens that have an important impact on the mechanical properties of rockmass. In this paper, cement mortar was used to prefabricate a rock-like specimen with two cavities and a single flaw, and the uniaxial compression test was carried out. …”
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Numerical Investigation of Influences of Drilling Arrangements on the Mechanical Behavior and Energy Evolution of Coal Models by Tong-bin Zhao, Wei-yao Guo, Feng-hai Yu, Yun-liang Tan, Bin Huang, Shan-chao Hu

“…This study first introduced the rock burst mitigation mechanism of the destress drilling method and then numerically investigated the influences of drilling arrangements on the mechanical properties of coal models through uniaxial compression tests. …”
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Energy dissipation mechanism and damage model of marble failure under two stress paths by Liming Zhang, Mingyuan Ren, Shaoqiong Ma, Zaiquan Wang

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Design and mechanical analysis of a novel modular bionic earthworm robot with upright functionality by Shufeng Tang, Jianan Yao, Yue Yu

“…Initially, we present a bionic robot unit module that is capable of attaining an upright posture. A mechanical model is established in accordance with the principle of minimum potential energy to facilitate various compression and deflection functionalities. …”
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Drag Reduction Mechanism of Viscoelastic Slick-Water Fracturing Fluid in Tortuous and Rough Fractures by Zhiyu Liu, Fan Fan, Donghang Zhang, Yang Li, Yuan Li, Kai Yang, Hongkui Ge, Fujian Zhou

“…However, the flow rate exceeds 0.5 m/s; drag reducers with higher molecular weight demonstrate better drag reduction performance. The drag reduction mechanism analysis in fractures was obtained from visualization observations, and the flow characteristics of fluid were characterized by using tracking particles. …”
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Study of mechanical behavior by fatigue of a cracked plate repaired by different composite patches by Moulgada Abdelmadjid, Ait kaci Djafar, Sahli Abderrahmane, Zagane Mohammed El Sallah, Zahi Rachid

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Clinical Significance and Pathogenic Mechanisms of Long Non-Coding RNA TRPM2-AS in Cancers by Shichen Huang MS, Bowen Li MS, Huanyu Chen MD, Cheng Rong, Zheng Yang MD, Xianqin Zhang PhD

“…In this review, we comprehensively summarize the latest knowledge on the aberrant expression of TRPM2-AS, the relationship between TRPM2-AS and clinical features, and the detailed mechanisms of potential functions of TRPM2-AS in various cancer types. …”
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ST-segment elevation myocardial infarction hospitalisations remain unchanged during COVID-19 by Chieh Yang Koo, Siew Pang Chan, Benjamin Wei Liang Tung, Kian Keong Poh, Huay-Cheem Tan, Poay Huan Loh

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Study on the Adsorption Performance and Adsorption Mechanism of Graphene Oxide by Red Sandstone in Aqueous Solution by Na Li, WenHao Dai, HaiBo Kang, Beifeng Lv, Ping Jiang, Wei Wang

“…This study will provide some references for the removal of GO in the environment and the interaction mechanism with natural minerals.…”
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Thermo-mechanical Coupling Simulation Analysis of Cycloid Gear Multi-tooth Form Grinding by Shi Enbing, Su Jianxin, Zhang Lifang, Deng Xiaozhong, Ren Xiaozhong, Cheng Chen

“…The cycloid gear multi-tooth form grinding is a gear finishing process，which can finish the processing of three tooth grooves at same time.In the process of high-speed grinding，high temperature will arise on the gear surface instantaneously，which may cause tooth surface burn.The temperature gradient formed by grinding temperature field will cause residual stress on the tooth surface，and the metallographic structure of cycloid gear tooth surface will change，affecting the grinding accuracy of the gear.The finite element method is used to simulate the temperature field of cycloid gear multi-tooth form grinding，and then the thermo-mechanical coupling analysis method is used to obtain the numerical simulation nephogram of the temperature field and thermal stress of cycloid gear form grinding.Through the analysis of the main stress of the grinding area，it can be seen that the stress is mainly concentrated at the grinding center near the root of the tooth，and the grinding area presents hot-pressing stress.In the ground area，the hot-pressing stress is converted into thermal tensile stress and gradually forms residual tensile stress，and the node stress also changes correspondingly with the change of grinding process parameters.The conclusion has certain research significance for predicting the distribution of temperature and thermal stress field during multi-tooth form grinding and reasonably selecting grinding process parameters.…”
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Natural Products for Cancer Therapy: A Review of Their Mechanism of Actions and Toxicity in the Past Decade by Yasir Osman Ali Abdalla, Bavani Subramaniam, Shaik Nyamathulla, Noorasyikin Shamsuddin, Norhafiza M. Arshad, Kein Seong Mun, Khalijah Awang, Noor Hasima Nagoor

“…Despite the positive attributes of natural products, there are many questions pertaining to their mechanism of actions and molecular targets that impede their development as therapeutic agents. …”
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Influence of free ferrite on the mechanical properties of high strength intercritical Austempered Ductile Iron by A. D. Basso, M. Caldera, N. E. Tenaglia, D. O. Fernandino, R. E. Boeri

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Investigation of Layer Thickness Effects on Mechanical Properties of PLA Using FDM Additive Manufacturing by Abdullah F. Alhuzaim

“…This study explores the influence of layer thickness on the mechanical properties of Polylactic Acid (PLA) fab- ricated using Fused Deposition Modeling (FDM) additive manufacturing. …”
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Predicting mechanical properties of bainitic rail steels based on microstructure digitalization and machine learning by L.Q. Bai, Z.Y. Ding, J.L. Wang, Z.J. Xie, Z.N. Yang, C.J. Shang

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MECHANICAL PERFORMANCE OF NEGATIVE POISSON’S RATIO STRUCTURES BASED ON ROTATING CONCAVE HEXAGON (MT) by WANG Zhen, CHEN GuoPing, HUI XuLong, HE Huan

“…In order to improve the mechanical performance of the negative Poisson’s ratio structure, based on the deformation mechanism of rotating rigid body structure and concave polygon structure, conventional concave hexagon was rotated by a certain angle to obtain the negative Poisson’s ratio（NPR） structure of rotating concave hexagon. …”
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Ventricular assist device implantation in children with a mechanical valve: An ACTION registry analysis by Sabena F. Hussain, MD, MSc, Elyse Miller, MD, Othman Aljohani, MBBS, MPH, Scott Auerbach, MD, David Bearl, MD, Victor Benvenuto, MD, Erica Bonura, MD, Richard L. Crawford, Anna Joong, MD, Jameson Dyal, MD, Christina Hartje-Dunn, MD, Sujit Jana, MD, Sonia Kaushal, MD, Melanie Lynn, MD, Joseph Spinner, MD, Laura Radel, MD, Alexander Raskin, MD, Diana Torpoco-Rivera, MD, Sarah J. Wilkens, MD, MPH, Chet R. Villa, MD

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Preparation and Mechanical Properties of Cemented Uranium Tailing Backfill Based on Alkali-Activated Slag by Fulin Wang, Guoliang Chen, Lu Ji, Zhengping Yuan

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Pushing the boundaries of mechanical thrombectomy protocol for acute stroke management: two case reports by J. Želdakova, G. Motiejūnas, D. Jatužis

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