Steady Three-Dimensional MHD Mixed Convection Couple Stress Flow of Hybrid Nanofluid with Hall and Ion Slip Effect by Ali Rehman, Waris Khan, Ebenezer Bonyah, Samsul Ariffin Abdul Karim, Ahmed Alshehri, Ahmed M. Galal

“…The Cf(skin friction coefficient), Nu(nusselt number), convergence control parameter, and comparison of the present work with the published work are described in the form of tables.…”
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Equal Channel Angular Extrusion Simulation of High-Nb Containing β-γ TiAl Alloys by Lai-qi Zhang, Xiang-ling Ma, Geng-wu Ge, Yong-ming Hou, Jun-zi Zheng, Jun-pin Lin

“…The results indicate that, with the increasing of friction coefficient, effective strain is enhanced. …”
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Study on the Properties and Pest Control Effects of Five Common Wheat Flour Packaging Materials by HE Rui, ZHANG Feng, ZHANG Yuan-quan, CHEN Jin-shen, LV Jian-hua

“…Tests were conducted on tensile properties, right-angle tearing strength, puncture resistance, combustion performance, friction coefficient, drop resistance, pressure resistance, and sealing performance. …”
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Temperature Characteristics of Axle-Box Bearings Under Wheel Flat Excitation by Yaping Luo, Fan Zhang, Zhiwei Wang, Chen Yang, Weihua Zhang, Fengshou Gu

“…The high-amplitude and high-frequency wheel–rail impacts excited by wheel flat result in severe contact friction in axle-box bearing (ABB), and the friction can cause a temperature rise or even structural damage of ABB. …”
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Experimental Studies of Thermal Hydraulics of Deep Eutectic Solvent Based on Choline Chloride by Myung Hyun Pyo, Siwon Seo, Jaeyoung Lee

“…Thermal-hydraulic experiment using glyceline, which is easy to synthesize and transparent to visualize flow with high viscosity among various DESs, was performed. Also, the friction factor and heat transfer coefficient required for energy system designs were measured. …”
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Improvement of Surface Properties of Inconel718 by HVOF Coating with WC-Metal Powder and by Laser Heat Treatment of the Coating by Hui Gon Chun, Tong Yul Cho, Jae Hong Yoon, Gun Hwan Lee

“…HVOF coating of WC-metal powder on a metal surface and a LH of the coating were highly recommended for the improvement of In718 surface properties, the friction behavior, and wear resistance.…”
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Analysis on Aircraft Brake Squeal Problem Based on Finite Element Method by Ming Zhang, Ran Xu, Hong Nie

“…Then, the effect of different parameters such as coefficient of friction, stiffness, and brake force fluctuation frequency on squeal phenomenon has been analyzed. …”
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Uncertainties Analysis on the Prediction of Flow and Heat Transfer of Liquid Sodium with CFD Technology by Zhanwei Liu, Xinyu Li, Tenglong Cong, Rui Zhang, Lingyun Zheng, Hang Deng, Yuning Cui

“…The results of sensitivity analysis illustrate that the Nusselt number was negatively correlated with the thermal conductivity and turbulent Prandtl number, while the friction coefficient was positively correlated with the density and Von Karman constant. …”
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Roof Stability of Rectangle Coal Roadway: In Light of Calculation of Compressive Bar Stability by Ma Shou-Long, Gao Linsheng, Yang Yue, Peng Rui, Zhao Qifeng

“…The result turns out that some factors lead to a higher instability tendency, including higher horizontal stress, higher cohesion force, and larger internal friction angle on the coal-rock interface and lower cohesion force and smaller friction angle on the rock-rock interface. …”
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Experimental and analytical investigation of hydraulic conductivity, energy dissipation, and drag forces in gradually varied flow conditions through rockfill media by Jafar Chabokpour

“…This paper focuses on the flow of water through rockfill porous media and brings out the effect of various parameters on hydraulic conductivity, friction factors, energy losses, drag coefficients, drag forces, and shear forces for such systems. …”
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Effect of Cyclic Freezing-Thawing on the Shear Mechanical Characteristics of Nonpersistent Joints by Daxing Lei, Hang Lin, Yifan Chen, Rihong Cao, Zhijie Wen

“…When freezing-thawing cycles are constant, the friction angle decreases slowly with persistency at first and then decreases rapidly, and the friction angle is the dominant factor that controls shear strength.…”
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Impact of Plant Root Morphology on Rooted-Soil Shear Resistance Using Triaxial Testing by Suyun Meng, Guoqing Zhao, Yuyou Yang

“…The results also show that the root system significantly enhances the soil cohesion while only minimally affecting the internal friction angle. The maximum rooted-soil cohesion is 2.39 times that of the plain soil cohesion, and the maximum internal friction angle of rooted-soil is 1.24 times that of plain soil. …”
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Walking coral: Complex phototactic mobility in the free-living coral Cycloseris cyclolites. by Brett M Lewis, David J Suggett, Peter J Prentis, Luke D Nothdurft

“…High-resolution time-laps captured the biomechanics of forward motion that appeared driven by three key factors: tissue inflation, which increased contact surface area for lift and friction; the ventral foot/pads, adjusting substrate interaction/friction; and the contraction and twisting of lateral peripheral tissues, which propelled the coral forward in a coordinated manner resembling the pulsed swimming motion of jellyfish. …”
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THE POSSIBILITIES OF REDUCING ENERGY CONSUMPTION OF THE ROBOT DRIVES IN THE DESIGN PHASE by I. V. Tarzhanov

“…The article discusses possible ways of designing with reduction of the energy consumption of robots by choice of schedules, the inclusion of actuators degrees of freedom, and reduction of work forces of friction when braking degree of freedom near the axis positioning.…”
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Effect of Twisted-Tape Turbulators and Nanofluid on Heat Transfer in a Double Pipe Heat Exchanger by Heydar Maddah, Reza Aghayari, Morshed Farokhi, Shabnam Jahanizadeh, Khatere Ashtary

“…The empirical correlations proposed for friction factor are in good agreement with the experimental data.…”
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Theoretical Analysis of Mining Induced Overburden Subsidence Boundary with the Horizontal Coal Seam Mining by Weitao Yan, Junjie Chen, Yi Tan, Wenzhi Zhang, Lailiang Cai

“…For unconsolidated stratum, the results show that the larger the internal friction angle, the greater the angle between subsidence boundary and horizontal line. …”
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MHD Williamson Nanofluid Flow over a Stretching Sheet through a Porous Medium under Effects of Joule Heating, Nonlinear Thermal Radiation, Heat Generation/Absorption, and Chemical... by J. Bouslimi, M. Omri, R. A. Mohamed, K. H. Mahmoud, S. M. Abo-Dahab, M. S. Soliman

“…Finally, special diagrams were made to explain the study of the effect of some physical parameters on the skin friction coefficient and the local Nusselt number; these results led to reinforcement in the values of the skin friction coefficient for the increased values of the magnetic field and the Darcy number while the effect on the local Nusselt number by thermal radiation as well as the heat generation/absorption coefficients became negative.…”
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Analysis of a Methodology for Torsional Test under Normal Stress and Shear Performance for Asphalt Mixtures by Jun Xie, Yiqun Zhan, Yifan Wang

“…Through the mechanical analysis, the calculation formulas for shear strength and shear parameters (cohesion and internal friction angle) for the torsional test under a normal stress condition were obtained. …”
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Deterioration of the Internal Structure of Loess under Dry-Wet Cycles by Wanjun Ye, Yang Bai, Chenyang Cui, Xu Duan

“…With an increase in the number and amplitude of dry-wet cycles, the change in the internal friction angle of the strength index is inevident, indicating that the effect of dry-wet cycles on the internal friction angle of loess is insignificant. …”
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Determination of Energy Capacity and Suitable Location Selection Criteria in Flexible Rock Barriers Against Rockfall Risks by Eroltan Durmuş, Özkan Coruk, Ahmet Karakaş

“…The difference is due to the surface friction and restitution coefficients in the surface contacts of the rock block in the computer software. …”
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