A Study of Dynamic Loading and Unloading Damage of Fiber-Reinforced Concrete under Confining Pressure by Chao Lin, Li Rao, Cheng-Lin Zhang, Zhi-Wen Yang, Fang Chen, Qing You, Xian-Jun Tan

“…Considering the influence of confining pressure in the actual service environment of concrete in underground projects, the damage characteristics of fiber-reinforced concrete under the action of confining pressure are evaluated according to the variation of measured permeability values by means of a triaxial ultralow permeability damage test system. …”
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Mechanical Properties and Failure Mechanisms of Sandstone Under Combined Action of Cyclic Loading and Freeze–Thaw by Taoying Liu, Huaheng Li, Longjun Dong, Ping Cao

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Investigation on Dynamic Factors of Railway Steel-Plate–Concrete Composite Beam Bridges With Small and Medium Spans by Jin Di, Yi Su, Yuxuan Han, Jinming Luo, Fengjiang Qin, Rui Yan

“…Dynamic factor (DF) is an important indicator for describing the dynamic action of a train on a bridge. For small- and medium-span bridges, although existing research and codes have studied and specified the DF of steel–concrete composite beam bridges, few studies have been refined to steel-plate–concrete composite beam bridges (SPCCBs), and the effect of eccentric loads has not been considered. …”
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Damage mechanism and evolution model of geopolymer stabilized coarse grained fillings subjected to repeated freeze-thaw actions by Shengnian Wang, Yuting Xiang, Zhijian Wu, Honglei Hui, Shuguang Hou, Zhujun Sun

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Kinetic analysis of change of direction simulating a defensive action in soccer players with and without acute fatigue by Matías de Pablo, Carol Torres, David Ulloa-Díaz, Gabriel Fábrica

“…Times, forces, impulses, and force rates for different subphases during support were compared. Speeds remained consistent across pre-fatigue (4.53 ± 0.55 m s-1) and post-fatigue (4.58 ± 0.70 m s-1) trials. …”
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The direct cost and geography of Brussels mass transport’s operating delays by Frédéric Dobruszkes, Yves Fourneau

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Study on erosion resistance experimental and mathematical modeling of nano-silica concrete in gravelly Gobi windy area by Kai Zhang, Bo Yang, Benli Liu, Yanhua Zhao, Aojun Guo, Li Chen, Yongshuai Liu, Guangyu Yan

“…At low erosion angle, the concrete surface mainly undergoes scratching due to the cutting action of sand and gravel. …”
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Experimental study on pore structure and dynamic mechanical properties of modified rubber concrete after freeze-thaw cycle by Minggao Chen, Shujie Yang, Shuyuan Wang, Yan Zhou

“…With the increase of freeze-thaw cycles, the porosity of the specimens increases continuously. The elastic action of rubber particles can reduce the increase of the internal porosity of concrete under the action of freeze-thaw cycles and reduce the internal porosity of concrete materials. (3) The peak stress and dissipated energy of three kinds of concrete specimens decreased linearly due to freeze-thaw cycle, and the decrease of plain concrete was higher than that of modified rubber concrete. …”
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Associations Between the Mortality Trends by Cause of Death and Hazardous Alcohol Consumption in Russia. The “Conveyor Belt Effect” in Action? by Elena S. Zamyatnina, Vladimir M. Shkolnikov, Alexey E. Shchur

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Feasibility of a Non-Anticipatory, Random-Action Target System to Improve Shooting Performance: A Brief Field Trial by Matthew Lee Smith, Ali Boolani

“…Observational data were gathered from a single-day, three-round trial to test shooting accuracy and shooting errors when shooters were unable to anticipate target appearance location and target exposure speed. In Trial 1, the target exposure time was 0.5 s, which increased to 0.7 s in Trial 2, and decreased back to 0.5 s in Trial 3. …”
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Effect of biochar and cyanobacteria crust incorporation on soil wind erosion in arid mining area under freeze-thaw action by Zhe Wang, Xueshi Liu, Fenghui Sun, Qinghong Jiang, Haili Shang, Chunli Zheng

“…Cyanobacteria crusts can inhibit wind erosion, but their biomass decreases under freeze-thaw conditions. There is limited research on whether combining biochar with cyanobacteria crusts can alleviate the impact of freeze-thaw on their wind erosion resistance. …”
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Development of technologies and tools for drilling additional wells from artificial bottom-hole with whipstock of continuous action in hard and very hard rocks by V. V. Neskoromnykh, D. V. Lysacov

“…A feature of the work of a milling type whipstocks is that the creation of a deflecting force is carried out due to the constant influence of the axial load, the value of which proportionally affects the speed of drilling. A review of the materials used to create an artificial bottom led to the conclusion that at present there are no curable materials that would have a hardness higher than category 8 for drillability, which means that when trying to drill a new direction of a well in rocks more than 8 grade for drillability, the speed drilling with a continuous action whipstocks will exceed the optimum and reduce the intensity of the buildup rate whipstock.Conclusion. …”
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Measurement report: Long-term assessment of primary and secondary organic aerosols in the Shanghai megacity throughout China's Clean Air actions since 2010 by H. Yu, Y. Chang, L. Cheng, Y. Duan, J. Hu

“…Our findings also revealed concentration gradients of SOC dependent on wind direction (WD) and wind speed (WS), with higher concentrations typically observed for winds originating from the southwest and northwest. …”
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Method for Solving the Problem of Load Movement over the Ice Cover of a Reservoir along a Complex Trajectory by A. V. Galaburdin

“…Calculations showed that the deflection of the ice cover increased markedly with the growth of speed and tangential acceleration of the load movement. …”
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PDDL Task Planning for Tunnel Spraying Based on a Multivariate Coating Accumulation Model by Yan Huang, Wenzheng Shi, Xin Sui, Chunyang Liu, Kai Xu

“…Based on the required thickness for each task layer, operational parameters such as the spraying duration <i>t</i> and nozzle movement speed <i>v</i> are optimized. By analyzing the spray gun action combinations and integrating hierarchical task planning with parameter optimization, a Planning Domain Definition Language (PDDL) domain file and problem file are designed to generate the spray gun action sequences and paths via a planner. …”
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Moisture Management Finish on Single and Rib Knit Cotton by Mehreen IJAZ, Namood -e- SAHAR, Zohra TARIQ, Rafia FATIMA, Zahra RASHEED, Madeeha TARIQ, Hibba Munir DAR

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Analysis of detonation wave effect in radial water coupling blasting by Yanbing WANG, Weiwen KONG, Dongchen WANG, Youyi SHEN, Ajian FENG, Yang LI, Wenhai ZHENG

“…As the water coupling coefficient increases, the pressure on the borehole wall first increases and then decreases, and the energy transfer efficiency first decreases, then increases and then decreases; Due to the presence of water medium, water coupled charge blasting can effectively extend the duration of shock wave action and improve energy transfer efficiency; Compared to the concentric water coupling charge form, the eccentric water coupling charge has a significant eccentric stress field, which can significantly increase the peak pressure of the hole wall on the coupling side, reduce the energy attenuation efficiency, and improve the energy utilization rate. …”
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Conception de systèmes d’assistance au conducteur : comment prendre en compte le caractère complexe, dynamique et situé de la conduite automobile ? by Thérèse Villame

“…In this view, we present here how we concretely deal with the « Situated cognition » hypotheses to design our studies of driving activity, through some examples taken among those we have carried out specifically in relation with the development of a system devoted to assist the driver in regulating speeds and distances with vehicles in front of him/her. …”
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Formation and Investigation of Plasma Powder Coatings Made of Oxide Ceramics Modified with High-Energy Effects by V. A. Okovity, F. I. Panteleenko, V. V. Okovity, V. M. Astashinsky, V. V. Uglov, V. I. Chimanskiy, N. N. Cerenda

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Healthcare worker perceptions of the FAST TB infection control strategy by D.B. Tierney, R.R. Nathavitharana, L. Cummins, K. Tintaya, A. Biewer, R. Guerrero, L. Lecca, L.R. Hirschhorn, E.A. Nardell, A.K. Nelson

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