Shear strength characteristics of mixing slag-stone ballast reinforcement with tire geo-scrap using large-scale direct shear tests by Morteza Esmaeili, Hamidreza Heydari, Maziar Mokhtari, Sara Darvishi

“…In this case, the shear strength‌, internal friction angle, vertical displacement, and dilatancy angle of stone–slag ballast reinforced with geo-scraps exhibited average changes of + 28%, + 9%, − 28%, and − 15%, respectively.…”
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Stagnation Point Flow of CoFe2O4/TiO2-H2O-Casson Nanofluid past a Slippery Stretching/Shrinking Cylindrical Surface in a Darcy–Forchheimer Porous Medium by Kifle Adula Duguma, Oluwole Daniel Makinde, Lemi Guta Enyadene

“…The effects of emerging thermophysical parameters on the overall flow structure and thermal management such as velocity and temperature profiles, skin friction, and Nusselt number are quantitatively discussed through graphs and in tabular form. …”
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Liquefiable Ground Treatment Using Cruciform Section Probe Resonant Compaction Method: A Case Study in the Xitong Expressway, Eastern China by Guangyin Du, Han Xia, Jun Cai, Huangsong Pan, Changshen Sun

“…Cone resistance and unit sleeve friction resistance were both improved by a factor of nearly 3 after the CSPRCM reinforcement. …”
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Development and In Vitro Characterization of Hyaluronic Acid-Based Coatings for Implant-Associated Local Drug Delivery Systems by Svea Petersen, Sebastian Kaule, Michael Teske, Ingo Minrath, Klaus-Peter Schmitz, Katrin Sternberg

“…The lubricious character of HA can then reduce the coefficient of friction and serve as drug reservoir simultaneously. …”
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Influential Factors of the Static Shear Properties of Coral Mud in the South China Sea by Yang Shen, Xiaoxi Rui, Long Yang, Shaoyu Li, Xue Shen

“…When the soil came to failure, the pore pressure coefficient Af varied linearly with the initial void ratio. The critical friction angle was greatly influenced by the confining pressure, and its magnitude first developed to a peak value and then decreased as the void ratio increased. …”
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Effect of temperature control on tribological and corrosion properties of copper in cathodic cage plasma nitriding by Muhammad Bilal Khalid, Syed Salman Hussain, Ameeq Farooq, Muhammad Shafiq, Yasin Khan, Muhammad Shoaib

“…At high temperatures, a low friction coefficient has been achieved due to smoother surfaces. …”
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Dissipative disorder analysis of Homann flow of Walters B fluid with the applications of solar thermal energy absorption aspects by Latif Ahmad, Assmaa Abd-Elmonem, Saleem Javed, Muhammad Yasir, Umair Khan, Yalcin Yilmaz, Aisha M. Alqahtani

“…In particular, the flow of fluid experiencing friction drag and due to which a significant amount of heat transfer occurred. …”
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Prediction model and real-time diagnostics of hydraulic fracturing pressure for highly deviated wells in deep oil and gas reservoirs by Lingdong Meng, Xiaoling Zhang, Yejun Jin, Kun Yan, Ziyang Li, Hailong Fu, Song li

“…This model analyzes the fluid movement behavior with diverse properties at various fracturing times and determines the relationship between the pressure changes at the leading and trailing edges of fluid movement in each section of the wellbore over time by combining different string structures and preset pumping procedures. The frictional pressure within the wellbore fluid, the hydrostatic fluid pressure, and the near-well friction drags have been calculated and predicted. …”
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Mixed Convective-Radiative Dissipative Magnetized Micropolar Nanofluid Flow over a Stretching Surface in Porous Media with Double Stratification and Chemical Reaction Effects: ADM-... by P. K. Pattnaik, M. M. Bhatti, S. R. Mishra, Munawwar Ali Abbas, O. Anwar Bég

“…A detailed parametric study of the influence of key parameters on stream function, velocity, microrotation (angular velocity), temperature, and nanoparticle concentration profiles is conducted. Furthermore, skin friction coefficient, wall couple stress coefficient, Nusselt number, and Sherwood number are displayed in tables. …”
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Finite element analysis and experimental verification of press-fit peg push-in and pull-out in trabecular bone analogue by Xiaoyi Min, David Heath, Azmi Rahman, Laurence Marks, David Murray, Stephen Mellon

“…Conclusion: The proposed method of simulating peg press-fit required only two sets of input data: the uniaxial material curve of the plastic bone from which the fracture strain could also be derived, and the coefficient of friction between the plastic bone and the peg. The method can be applied to gain insight into the potential of new fixation component designs before progression to experimental testing.…”
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Extraction of Features due to Breathing Crack from Vibration Response of Rotated Blades considering Tenon Connection and Shroud Contact by Faming Yang, Yongmin Yang, Haifeng Hu, Fengjiao Guan, Guoji Shen, Suiyu Chen, Zifang Bian

“…Firstly, a blade with tenon and shroud is simplified and a lumped parameter model of the bladed disk is built. Then, dry friction and coupling force on a blade are analyzed and dynamics equations of the lumped parameter model are established. …”
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Graphene nanoplatelets in titanium coatings deposited by cold spray: Mechanical properties by Edwin Torres Díaz, Alessio Silvello, Edwin Rúa Ramirez, Rodolpho Fernando Vaz, Irene García Cano

“…Wear tests demonstrated a 25% reduction in friction coefficient, attributed to the lubricating effect of GNPs. …”
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Rheology of concentrated crystal suspensions: sucrose fondants as hard particles in soft matter by Hannah M. Hartge, Hannah M. Hartge, Eckhard Flöter, Thomas A. Vilgis

“…Thus, our findings can be transferred to other areas involving concentrated, non-Brownian frictional suspensions of compact hard particles, as they are often found in food, technical applications or geology.…”
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The Preparation and Performances of Self-Dispersed Nanomicron Emulsified Wax Solid Lubricant Ewax for Drilling Fluids by Feng-shan Zhou, Ting-ting Wang, Zheng-qiang Xiong, Wen-yue Guo, Xi Xiang, Huan-na Wang, Xia-lei Zhu, Fang Liu, Bao-lin Cui

“…It is shown that the adhesion coefficient reduced rate (ΔKf) is 73.5% and the extreme pressure (E-P) friction coefficient reduced rate (Δf) is 77.6% when the produced Ewax sample was added to fresh water based drilling fluid at dosage 1.0 wt%. …”
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DESIGN OF THE CONTACT POTENTIALS DIFFERENCE PROBES by K. U. Pantsialeyeu, U. A. Mikitsevich, A. L. Zharin

“…These probes are could be used in scanning systems, such as a Scanning Kelvin Probe, as well as for controlling system of manufacturing processes, e.g. under friction. The design of such contact potential difference probes conducted using modern electronic components, unique circuitry and design solutions described in detail at paper. …”
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Optimized Design of an ECAP Die Using the Finite Element Method for Obtaining Nanostructured Materials by Patricia Ponce-Peña, Edgar López-Chipres, Edgar García-Sánchez, Miguel Angel Escobedo-Bretado, Brenda Xiomara Ochoa-Salazar, María Azucena González-Lozano

“…Thanks to simulation performed with FEM, it is possible to study the homogeneity in the deformation due to the variation of conditions affecting directly the material being processed using the ECAP technique, such as the friction coefficient, extrusion speed, and mainly the die’s channel geometry being utilized in the ECAP process. …”
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Optimization of Performance Characteristics of Magnetofluidic Seals for Wind Power Plants by O. N. Labkovich, S. G. Pogirnitskaya

“…Magnetofluidic seals are characterized by high tightness, simplicity of the design, low losses by friction. Magnetic fluid seal of the rotating shaft consists of a ring magnet and two concentrators of magnetic field, forming with the shaft a narrow ring gap in which the magnetic fluid retained by magnetic field is a hermetic seal. …”
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Method for Calculating Transients in a Gas Pipeline by A. S. Fikov

“…In the course of the research, the task was set to obtain a mathematical model of the process taking into account the inertial term of the equation of motion, the neglect of which is possible only if the friction losses are exceeded by 3.5–4 times over the shock pressure. …”
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Features of Measuring the Hardness of a Metal Surface Modified with Ultrafine Particles of Minerals by A. V. Skazochkin, G. G. Bondarenko, P. Żukowski

“…One of the important characteristics of the surface properties of metal parts subjected to friction is hardness. Hardness measurements are important for determining the operational characteristics of parts and monitoring the technological regimes of surface modification. …”
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Discrete Element Study of Particle Size Distribution Shape Governing Critical State Behavior of Granular Material by Mingdong Jiang, Daniel Barreto, Zhi Ding, Kaifang Yang

“…A unique critical-state stress ratio in <i>p</i>′<i>-q</i> space is observed, indicating that the critical friction angle is independent of the shape of the PSD. …”
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