Stability prediction of circular sliding failure soil slopes based on a genetic algorithm optimization of random forest algorithm by Shengming Hu, Yongfei Lu, Xuanchi Liu, Cheng Huang, Zhou Wang, Lei Huang, Weihang Zhang, Xiaoyang Li

“…Based on 80 sets of typical slope samples, weight (γ), slope height (H), pore pressure value (P), cohesion force (C), internal friction angle (φ) and slope inclination angle (°) were selected as characteristic variables for slope stability evaluation. …”
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Liquid–Solid Triboelectric Nanogenerator‐Based DNA Barcode Detection Biosensor for Species Identification by Wenlong Ma, Jiawei Li, Xiaolin Qu, Shao‘e Sun, Yanan Zhou, Yitong Liu, Peng Wang, Zhongli Sha

“…Through sequentially combining capture probe, targeted DNA barcode, and signal probe with Au nanoparticles (NPs), the surface charge density of friction layer of TENG decreases under the effect of AuNPs, verified by the density functional theory (DFT) method. …”
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Effect of Rock Particle Content on the Mechanical Behavior of a Soil-Rock Mixture (SRM) via Large-Scale Direct Shear Test by Longqi Liu, Xuesong Mao, Yajun Xiao, Qian Wu, Ke Tang, Feifei Liu

“…The higher the normal stress and rock particle content are, the bigger the equivalent cohesion and the internal friction angle is.…”
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Microstructure development, mechanical properties and underlying mechanism of micro-TiN-reinforced AlSi10Mg composites fabricated by selective laser melting by Huang X., Wang L., Huang W.-D., He D.-D., Cheng X.-H., Xu X.-P., Chen X.-X., Qin S.-S., Huang L.-H.

“…. %, resulting in excellent mechanical performance of the fabricated samples (132.4±4.1 HV for hardness and 379.7±4.6 MPa for tensile strength) with a low friction coefficient of 0.49.…”
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Finite Element Analysis of Horizontal Bearing Capacity for the Composite Diaphragm Wall Anchor Foundation by Qian Yin, Leyong Wei, Xiaojuan Li, Weiming Gong, Xueying Yang, Guoliang Dai, Shunkai Peng

“…The distribution of soil resistance and side friction resistance of the CDWAF with depth is influenced by the critical depth, which increases with the load. …”
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Design of compressor unit based on wave compressor with magnetoelectric drive for extraction of hydrocarbons in Arctic shelf by S. V. Goryunov, D. A. Morozov, O. V. Belova, E. V. Krestovskikh, D. A. Kalinkin, K. A. Kolesov

“…The advantage of the compressor is the complete absence of mechanical friction of the structural elements. The paper considers a multi-stage scheme of a wave compressor with a magnetoelectric drive for the extraction of hydrocarbon raw materials and a calculation analysis of the latter’s performance based on the calculation of a magnetoelectric compressor kinetic compression and volumetric injection as an analogue of a wave compressor…”
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Taming of trinitromethyl-oxadiazole to access high density and high oxygen balance via a dual modulation strategy by Jinya Zhang, Teng Fei, Jingwei Meng, Jinxiong Cai, Lei Zhang, Siping Pang, Chunlin He

“…Notably, practical crystal morphology prediction was creatively introduced to guide the experimental crystallization conditions of 3, increasing the impact sensitivity and friction sensitivity from 1 J to 80 N (3-a) to 10 J and 240 N (3-b), respectively. …”
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Service Life and Failure Analysis of Nylon, Polycarbonate, and IGUS i180 Polymer Gears Made by Additive Manufacturing by Adis J. Muminović, Sunita Bektašević, Enis Muratović, Nedim Pervan, Jasmin Smajić, Adil Muminović, Isad Šarić, Elmedin Mešić, Mirsad Trobradović, Muamer Delić

“…The third material is IGUS i180, which is a tribological material specially developed for additive manufacturing of parts with demands for high resistance properties such as resistance to friction, wear, and high temperatures which are essential for the long service life of gears. …”
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Determination of temperature mode of rotary bearings of gas turbine engine with air and fuel lubrication system by V. N. Klimov, D. Ya. Dudev, V. Ya. Sigaylo, N. I. Klimov

“…On the basis of the test results of hybrid ball radial thrust bearings 45-126205РЯ the dependences of the friction moment and the coefficient of convective heat transfer on the parameters of the air-fuel mixture and operating modes are determined. …”
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Investigating slope stability of multiple stopes prone to instability in the Ziluoyi iron ore mining site by Zhongao Yang, Ziling Song, Xiaohua Ding, Mvondo Nga Michele Victoire, Ali Moussa Abdoul Wahab, Barry Oumar, Fanghui Yang, Abdullahi Yusuf Ibrahim, Zhen Gao, Zhaoxi Long

“…Further, using the Hoek–Brown criterion in conjunction with the Moher–Columb criterion, the cohesion and internal friction angle of various samples are appropriately determined (lower disk: 21.124 MPa–35.614°; ore body: 21.66 MPa–26.5°; upper disk: 42.916 MPa–25.743°). …”
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Design and fabrication of {111}-textured nanotwinned silver coating for enhancing surface wear resistance of depleted uranium by Kunming Yang, Xiaobo Wang, Shengfa Zhu, Yawen Zhao, Qingdong Xu, Yiyun Wei, Chao Lu, Zhiyuan Wen, Tongxiang Fan, Mingyu Gong, Anyi Yin, Wenhua Luo

“…The {111}Ag-textured coating with fine twins with small plastic zone, low delamination height and subsequent minimal coefficient of friction (COF) was designed. Furthermore, by controlling the bias voltage of magnetron sputtering from −100 to −800 V, Ag coatings with various surface roughness, grain size, and nanoscale twin density were experimentally deposited on depleted uranium (DU) for tribological performance studies. …”
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Tungsten erosion during L-mode discharges in the DIII-D SAS-VW divertor by G. Sinclair, T. Abrams, M.S. Parsons, S.H. Messer, J. Mateja, S.A. Zamperini, D.M. Thomas, J.D. Elder, R. Maurizio, T. Odstrcil, R.S. Wilcox, J.L. Herfindal, D.D. Truong, J.G. Watkins, A.G. McLean, D.L. Rudakov, J. Ren, D. Donovan

“…The difference in the measured core W density with OSP position is much greater than the difference in the measured erosion rates, which may suggest that the leakage of eroded impurities out of the divertor is governed primarily through the parallel ion temperature gradient and friction forces.…”
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The impact of the coupling relationship between projectile size and yarn dimension on the ballistic performance of plain weave fabric by Kaiying Wang, Xuan Zhou, Wenke Ren, Yiding Wu, Yilei Yu, Yi Zhou, Lizhi Xu, Guangfa Gao

“…Aramid fibers, due to their relatively high inter-yarn friction, high strength, high modulus, and other characteristics, have become a typical representative of flexible anti-ballistic materials in modern warfare. …”
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Experimental study on the engineering characteristics of expansive soil improved conjointly using enzyme induced carbonate precipitation and eggshell powder by Mudassir Mehmood, Yuancheng Guo, Yunlong Liu, Lei Wang, Wen Nie, Bantayehu Uba Uge, Sharafat Ali, Chen Xuanyu, Yingao Zhao

“…Additionally, the combined treatment led to an increase in the unconfined compressive strength, cohesion, internal friction angle, unsoaked CBR, and soaked CBR by 3, 1.6, 1.8, 8.0, and 9.5 times, respectively, indicating better enhancements than the individual treatments of EICP and ESP. …”
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Vertical Profile of Wind Diurnal Cycle in the Surface Boundary Layer over the Coast of Cotonou, Benin, under a Convective Atmosphere by Hagninou E. V. Donnou, Aristide B. Akpo, Clément A. Kouchadé, Basile B. Kounouhewa, Guy H. Hounguè, Gbènoukpo F. Nonfodji, Julien Djossou

“…The annual mean value of the wind shear coefficient is estimated at 0.20 and that of the ground surface roughness length and friction velocity are, respectively, of 0.007 m, 0.38 m·s−1. …”
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Numerical assessment of heat transfer and entropy generation of a mixed convection ferrofluid flow under the effect of a non-uniform magnetic field by Kamel Zitouni, Messaouda Boumaaza, Lakhdar Aidaoui, Yahia Lasbet, Houssam Eddin Abdellatif, Shan Ali Khan, Yazid Chetbani, Ahmed Belaadi, Ibrahim M.H. Alshaikh, Djamel Ghernaout

“…The effect of the various factors in the problem on heat transfer presented by Nusselt number (Nu) and the friction coefficient along the entropy generation have been discussed graphically. …”
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Thermal radiation effects of ternary hybrid nanofluid flow in the activation energy: Numerical computational approach by Hakeem Ullah, Syed Arshad Abas, Mehreen Fiza, Aasim Ullah Jan, Ali Akgul, Magda Abd El-Rahman, Seham M. Al-Mekhlafi

“…There is encouraging evidence that the numerical code for this study is compatible with previously published work. The skin friction improves 5 % due to the higher values of magnetic and stretching parameter at lower disk. …”
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Computational and experimental study of swirling ring flow by A. A. Kishkin, Yu. N. Shevchenko, A. A. Zuev, D. A. Zhuikov

“…The equation forms the basis of the algorithm of integration in finite differences supplemented by a system of service equations describing the friction stress, thermodynamic parameters, etc. Test calculations are carried out using real parameters, the results are analyzed.…”
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Second order slip micropolar MHD hybrid nanofluid flow over a stretching surface with uniform heat source and activation energy: Numerical computational approach by Syed Arshad Abas, Hakeem Ullah, Mehreen Fiza, Ali Akgul, Aasim Ullah Jan, Magda Abd El-Rahman, Seham M. Al-Mekhlafi

“…Findings: The results reveal that the inclusion of slip boundary conditions significantly influences the flow dynamics, reducing skin friction by 4.9 % and 10.4 % with increasing magnetic and material parameters, respectively, but enhancing it with a higher slip factor by 18.88 %. …”
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Geochemical signatures and nanomechanical properties of echinoid tests from nearshore habitats of Florida: environmental and physiological controls on echinoid biomineralization by Przemysław Gorzelak, Luis Torres Jr., Dorota Kołbuk, Tobias B. Grun, Michał Kowalewski

“…Such heterogeneity in Mg distribution within single specimens cannot be ascribed solely to environmental changes, indicating that these echinoids actively regulate their intraskeletal Mg content: the higher magnesium concentration at the tubercles relative to that of the underlying stereom may be interpreted as a strategy for enhancing their mechanical strength to withstand surface friction and wear. The results suggest that the trace element composition of echinoid tests is a complex outcome of environmental and physiological factors.…”
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