Effects of marble waste on shear strength and pullout resistance of sand reinforced with Glass Fiber-Reinforced Polymer (GFRP) bars by Shabir Hussain, Irshad Ahmad, Fasih Ahmed Khan, Waqas Ahmad, Beenish Jehan Khan

“…For instance, sand with the optimum addition of MP, MR, and MP+MR showed improvements of 8.2 %, 15 %, 23.4 %, 15.9 %, 21.2 %, and 24.5 % in the peak and ultimate angles of internal friction, respectively. Additionally, the peak pullout resistance of a 12 mm TW-GFRP bar embedded in the optimum MWS samples increased by 105 %, 126 %, and 139 %, compared to the bar embedded in the pure sand sample. …”
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Shear Strength and Pull-Out Response of Tire Shred-Sand Mixture Reinforced with Deformed Steel Bars by Beenish Jehan Khan, Irshad Ahmad, Hassan Nasir, Abdullah Abdullah, Qazi Khawar Gohar

“…Large-scale direct shear test indicated higher internal friction angle and cohesion values for tire shred-sand mixtures (30/70) with 100 mm tire size (38.5° and 19 kPa) as compared with sand-only backfill material (30.9° and 0 kPa). …”
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Unprecedented mechanical wave energy absorption observed in multifunctional bioinspired architected metamaterials by Zhendong Li, Xinxin Wang, Kexin Zeng, Zichao Guo, Chong Li, Xiang Yu, Seeram Ramakrishna, Zhonggang Wang, Yang Lu

“…The high-fidelity microstructure-based model reveals the air friction damping mechanism, with broadband behavior attributed to multimodal hybrid resonance. …”
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L’expérience touristique : une expérience des cadres de l’expérience touristique ? by Hécate Vergopoulos

“…Elle entend également montrer qu’à travers la pluralité des approches émergent des zones de friction et de tension dans la définition de cette notion centrale du tourisme. …”
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Techniques for Progressive Failure Simulation of Hard Brittle Surrounding Rockmass: Taking the URL Test Tunnel as an Example by Daning Zhong, Jianlin Chen, Hui Zhou, Xiangrong Chen, Yali Jiang, Liangquan Li, Jun Chen

“…Taking the URL test tunnel in Canada as an engineering case, the constitutive model of the contact considering the effects of cohesion weakening and friction strengthening is applied, and the 2D approximation to 3D excavation by applying elastic modulus reduction technology is adopted to simulate the range and depth of crack growth of the surrounding rockmass. …”
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Investigation of turbulent thermal-hydraulic behaviors of a heat exchanger tube with U-cut twisted-tape by K. Wongcharee, V. Chuwattanakul, S. Chamoli, N. Maruyama, M. Hirota, S. Eiamsa-ard

“…In contrast, U-TTs with larger U-cut ratios (s/t = 2.5 and 3.0) showed reduced Nusselt numbers. However, friction losses with all U-TTs were consistently higher than those with TTs. …”
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Optimizing electrical output performance of triboelectric nanogenerators by micro-/nano-morphology design and fabrication by Jiaxin Han, Xingyi Dai, Long-Biao Huang, Jianhua Hao

“…Among them, physical morphological modifications play a pivotal role in enhancing the electrical properties of TENGs by increasing the contact surface area, which can be achieved by building micro-/nano-structures on the surface or inside the friction material. In this review, we summarize the common morphologies of TENGs, categorize the morphologies into surface and internal structures, and elucidate their roles in enhancing the electric output performance of devices. …”
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A comprehensive numerical study exploring the significance of thermally reactive bioconvection in Falkner-Skan flow of Williamson nanomaterials influenced by activation energy and... by M. Israr Ur Rehman, Haibo Chen, Aamir Hamid, Wu Qian, Refka Ghodhbani, Mohamed Hussien

“…The raising valuation of wedge angle parameter diminished the velocity and friction drag. Moreover, higher thermal radiation and electric parameter also escalate the thermal field. …”
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Experimental Study on Undrained Shear Properties of Saline Soil under Freeze-Thaw Cycles by Shukai Cheng, Qing Wang, Jiaqi Wang, Yan Han

“…Logistic functions can be used to fit and predict the degradation law of the internal friction angle and cohesion.…”
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Strategic enhancement of joint strength in dissimilar Al/Mg alloys: a workable approach for aerospace application by S. Suresh, Elango Natarajan, Kalaimani Markandan, S. Sudhagar, Gnanasambandam Anbuchezhiyan, R. Elayaraja

“…This study explores the role of silicon carbide (SiC) nanoparticles in enhancing the friction stir spot welding (FSSW) of dissimilar alloys AA6061 and AZ31B. …”
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Surface Laser Quenching as an Alternative Method for Conventional Quenching and Tempering Treatment of 1538 MV Steel by R. Carrera-Espinoza, A. Rojo Valerio, J. del Prado Villasana, J. A. Yescas Hernández, P. Moreno-Garibaldi, M. A. Cruz-Gómez, U. Figueroa López

“…Results reveal that laser treatment reduces the average friction coefficient by 25% and the wear rate by 60% compared with those achieved by the conventional methods, while the depths of the wear track and hardness of the cross section and surface are maintained.…”
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Interaction model estimation-based robotic force-position coordinated optimization for rigid–soft heterogeneous contact tasks by Haochen Zheng, Xueqian Zhai, Hongmin Wu, Jia Pan, Zhihao Xu, Xuefeng Zhou

“…Inspired by Model Predictive Interaction Control (MPIC), this paper proposes differential models for estimating contact geometric parameters and normal-friction forces and formulates an optimal control problem with multiple constraints to allow robots to perform rigid–soft heterogeneous contact tasks. …”
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Study on Fault Activation Evaluation Mechanism and Sensitivity Analysis in Shale Gas Hydraulic Fracturing by Penglin Liu, Haifeng Fu, Zhuxing Chen, Qixuan Li, Jun Li, Jiayi Liu, Yu He, Xianbo Liu

“…The length of the fault’s activation was decreased by the increase in fracture stage, distance from the fault, friction angle within the fault, and fault angle. Finally, a shale gas horizontal well with casing deformation in block C was analyzed. …”
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A Modern Approach to Analyzing the Flowing Pressures of a Two-Phase CBM and Water Column in Producing Wellbores by Xinfu Liu, Chunhua Liu, Jianjun Wu

“…The computation of flowing pressures involves a liquid holdup and kinetic energy term with flow rate increments, a compressibility factor with depth increments, and a friction factor with Reynolds number. The flowing pressures of a two-phase column fully reflect the dynamic flowing performance due to the combined action of the water level, CBM, and water flow rates. …”
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Examining Health Care Provider Experiences With Patient Portal Implementation: Mixed Methods Study by Shipra Taneja, Kamini Kalia, Terence Tang, Walter P Wodchis, Shelley Vanderhout

“…ConclusionsWhile health care providers acknowledged that MyChart improved patients’ access to health information, its implementation introduced some friction and concerns. To reduce the risk of these challenges, health systems can benefit from engaging health care providers early to identify effective patient portal implementation strategies.…”
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Characterization and Sliding Wear Behavior of Low-Pressure Cold-Spray Al-Al₂O₃ and Al-Al₂O₃/TiN Composite Coatings by Pudsadee Chupong, Mahathep Sukpat, Karuna Tuchinda

“…This study investigates the sliding wear behavior, friction characteristics, hardness, and microstructure of Al-Al₂O₃ and Al-Al₂O₃/TiN composite coatings deposited using LPCS at 1 MPa and 450 °C. …”
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CFD analysis of heat transfer enhancement in impinging jet array by varying number of jets and spacing by Zakia Rachdi, Nidhal Hnaien, Aboulbaba Eladeb, Badr M. Alshammari, Lioua Kolsi, Hacen Dhahri

“…Through the investigation of the turbulent kinetic energy, friction coefficient, velocity contours, streamlines, pressure contours, and local and mean Nusselt numbers, we provide important information about how these parameters impact flow dynamics. …”
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A Simplified Approach to Estimating the Collapsible Behavior of Loess by Hua Wen, Songyin Deng, Wei Zhang, Qiangong Cheng, Jiujiang Wu, Dailin Hu

“…Subsequently, a comparative numerical analysis based on the modulus reduction method and the force-water equivalent method, which is commonly used for the analysis of negative skin friction on piles in collapsible soil, is investigated. …”
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Robust highly conductive patterns in flexible PEEK materials with either sp3 or sp2 dominant carbon phases produced by using ultrashort laser pulses by Ayesha Sharif, Nazar Farid, Yuhan Liu, Mingqing Wang, Robert G. Palgrave, Gerard M O'Connor

“…The reported low-fluence process is significant for direct laser writing of conductive structures on polymers providing a precise and controlled manipulation of carbon configuration to produce components which are not impacted by mechanical friction.…”
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Stability Analysis and Derived Control Measures for Rock Surrounding a Roadway in a Lower Coal Seam under Concentrated Stress of a Coal Pillar by Zhuoyue Sun, Yongzheng Wu, Zhiguo Lu, Youliang Feng, Xiaowei Chu, Kang Yi

“…This is an ideal position for the lower coal seam roadway. (3) The shallowness of the roadway, a small stress concentration coefficient, high level of coal cohesion, large coal internal friction angle, and appropriate lengthening of the working face of the upper coal seam are conducive to the stability of the lower coal seam roadway. (4) Through bolt (cable) support, borehole pressure relief, and pregrouting measures, the roof-to-floor and rib-to-rib convergence of the 13313 return airway is significantly reduced, and the stability of the rock surrounding the roadway is substantially improved. …”
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