Research and application on megawatt level intelligent fracturing pump system in coal mine by Ran LI, Chuliang WANG, Bo LIU, Yanjun FENG, Pengfei JIANG, Rongming CHEN, Jingbin CHEN, Zhuo CHEN, Dalong WANG, Haicheng LU, Zongkai GUO, Tianze CAO, Yuanzheng YU, Chao WANG

“…The research included: Development of high-strength, erosion-resistant martensitic precipitation hardening stainless steel suitable for extreme conditions with large flow, ultra-high pressure, and sand-mixed media, along with ultra-high pressure self-reinforcing treatment to enhance the fatigue life of the hydraulic ends of fracturing pumps; Investigation of critical reliability technologies, including high-strength welding for alloy steel, high-load-bearing, high-power-to-weight ratio gear transmission technology, and wear-resistant friction pairs of aluminum bronze alloy-cast iron, to ensure the reliability of the transmission system under high-power conditions; Creation of a high-durability metal plunger-combination seal fracturing fluid sealing pair, with the application of computer simulation technologies such as virtual prototyping, FEA, CFD, and hydraulic system simulation to optimize the structure, performance, and reliability of the fracturing pump’s fluid end suction and discharge systems; Mastery of technologies such as low-frequency variable flow sealing for deep boreholes, automatic identification of coal and rock layer fracturing, and cyclic fracturing control, enabling intelligent control throughout the fracturing process. …”
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Polarization scattering-based detection of lubricating materials by Xin Liu, Junxin Jian, Xiaolu Huang, Huilong Li, Yuan Tian, Weizhi Ma, Xiaolong Zhao, Zunnian Liu, Jiayi Sun, Xiushuo Zhang, Yong Wang, Xiaomei Zhu

“…Friction, wear, and corrosion are common phenomena in both industrial and daily life, significantly impacting the performance, lifespan, and energy efficiency of equipment. …”
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An analytical optimal calibration framework of bonded particle model for rock strength envelop modelling by Xiaoxiong Zhou, Hongyi Xu, Qiuming Gong, Yanan Ma, Weiqiang Xie

“…Bond tensile strength, cohesion and local internal friction angle were identified as independent variables for calibration. …”
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AI-Based Vehicle State Estimation Using Multi-Sensor Perception and Real-World Data by Julian Ruggaber, Daniel Pölzleitner, Jonathan Brembeck

“…With the rise of vehicle automation, accurate estimation of driving dynamics has become crucial for ensuring safe and efficient operation. Vehicle dynamics control systems rely on these estimates to provide necessary control variables for stabilizing vehicles in various scenarios. …”
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Computational analysis of thermo-solutal Marangoni convective unsteady stagnation point flow of tetra hybrid nanofluid past rotating sphere with activation energy by Munawar Abbas, Hawzhen Fateh M. Ameen, Jihad Younis, Nargiza Kamolova, Ebenezer Bonyah, Hafiz Muhammad Ghazi

“…Better performance and energy efficiency are ensured by its assistance in comprehending fluid behaviour in automotive and aerospace cooling mechanisms. …”
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A Study on the Impact of Industrial Robot Applications on Labor Resource Allocation by Kexu Wu, Zhiwei Tang, Longpeng Zhang

“…However, in the short term, improvements in innovation capacity may temporarily intensify labor mismatch due to structural frictions. Overall, industrial robots not only exert a direct positive impact on the efficiency of urban labor allocation but also indirectly contribute to resource optimization through structural transformation and innovation system development. …”
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Assessment of soil classification based on cone penetration test data for Kaifeng area using optimized support vector machine by Hanliang Bian, Zhongxun Sun, Jiahan Bian, Zhaowei Qu, Jianwei Zhang, Xiangchun Xu

“…In this study, Support Vector Machine (SVM) models were trained for soil classification using 649 Cone Penetration Test (CPT) datasets, specifically utilizing cone tip resistance ( $$q_c$$ ) and sleeve friction ( $$f_s$$ ) as input variables. Pearson correlation and sensitivity analysis confirmed that these variables are highly correlated with the classification results. …”
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Magnetic Field Effects on Convective Heat Transfer of Ferrofluid from a Heated Sphere in Porous Media by Ayesha Aktar, Sharaban Thohura, Md. Mamun Molla

“…The problem is crucial for developing advanced heat transfer technologies for more efficient energy management in various engineering applications.…”
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Numerical examination of the chemically reactive MHD flow of hybrid nanofluids over a two-dimensional stretching surface with the Cattaneo–Christov model and slip conditions by Algehyne Ebrahem A., Alamrani Fahad Maqbul, Seada M. M., Saeed Anwar, Bognár Gabriella

“…To address this issue, energy efficiency improvement is essential. Hybrid nanofluids have significant applications in the industrial and engineering sectors because of their higher thermal conductivity compared to conventional nanofluids. …”
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Precision optimization of reactive squeezing flow in stratified fluids: A response surface exploration by Anum Shafiq, Tabassum Naz Sindhu, Muhammad Ahmad Iqbal

“…The Nusselt number, Sherwood number, and skin friction coefficient are computed numerically for various parameter settings. …”
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Accurate prediction of clinical stroke scales and improved biomarkers of motor impairment from robotic measurements. by Dimitris K Agrafiotis, Eric Yang, Gary S Littman, Geert Byttebier, Laura Dipietro, Allitia DiBernardo, Juan C Chavez, Avrielle Rykman, Kate McArthur, Karim Hajjar, Kennedy R Lees, Bruce T Volpe, Michael Krams, Hermano I Krebs

“…<h4>Objective</h4>One of the greatest challenges in clinical trial design is dealing with the subjectivity and variability introduced by human raters when measuring clinical end-points. …”
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Probabilistic Analysis of Weathered Soil Slope in South Korea by Taeho Bong, Younghwan Son

“…The results showed that a probabilistic framework can be used to efficiently consider the spatial variability of soil properties, and various slope failure patterns were identified according to the spatial variability of the soil properties and the probabilistic rainfall intensity.…”
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Sensitivity Analysis of the Thermal Structure Within Subduction Zones Using Reduced‐Order Modeling by Gabrielle M. Hobson, Dave A. May

“…Our analysis highlights the strong effect of variability in the apparent coefficient of friction, with previously published ranges resulting in pronounced variability in estimated rupture limit depths.…”
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Study on numerical simulation of rock breaking by PDC wear teeth cutting by Maosheng CAI, Hongbo WANG, Chunjiang ZHANG, Sai LI, Shuting CHENG

“…Considering the fluctuation of cutting efficiency and load, the front angle should be controlled at 15°−20° as far as possible, which is beneficial to prolong the service life of the cutting teeth. …”
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Physics-Informed Preform Design for Flashless 3D Forging via Material Point Backtracking and Finite Element Simulations by Gracious Ngaile, Karthikeyan Kumaran

“…Beyond supporting the development of new flashless forging sequences, the method also offers a framework for modifying preforms during production to minimize waste and for diagnosing preform defects linked to variability in frictional conditions, die temperatures, or material properties. …”
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