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261
Professional-applied physical training of future specialists in the oil and gas industry with the predominant use of the game method
Published 2025-02-01“…Physical fitness was assessed using motor tests that evaluated key motor qualities, including strength, endurance, speed, flexibility, and coordination abilities. …”
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262
STUCTURE OF PULSED BED
Published 2014-10-01“…The structure of pulsed layer is proposed which can be suggested as a state of particulates that is blown by intermittent gas flow with speed which has the force to start material moving. …”
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263
Effects of 12-week pilates reformer training on the biomechanics of Latin dance Cha-Cha circle chasing technique
Published 2025-06-01“…The experimental group also exhibited significant improvements (P < 0.05) in the flexion and extension speeds of these joints during the movement phases, while the control group showed minimal changes (P > 0.05). (2) Pilates Reformer training led to significant increases (P < 0.05 or P < 0.01) in the RMS normalized muscle activation values in both legs during the Cha-Cha circular chase step. …”
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264
Federated deep reinforcement learning-based urban traffic signal optimal control
Published 2025-04-01“…The proposed method improves the model generalization ability of different local models during global cross-region distributed joint training under the premise of ensuring information security and data privacy, solves the problem of non-independent and homogeneous distribution of environmental data faced by different agents in real intersection scenarios, and significantly accelerates the convergence speed of the model training phase. By reasonably designing the state, action and reward functions and determining the optimal values of several key parameters in the federated collaboration mechanism, the RL model could ensure high learning efficiency and fast convergence in the face of the gradual increase of road network size and the exponential increase of state and action space with the number of intersections. …”
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265
Kinetics of Extraction of Dioscine from Vegetable Raw Materials in Vibrocavitation Homogenizer
Published 2020-05-01“…It was also found that the resistance to mass transfer inside particles increases significantly as it approaches the final stage of the process, and with an increase in the rotor speed, it increases, especially at the initial stage of the process, which is associated with the intensity of cavitation and the weakening of its effect as the process deepens inward particles.Conclusions. …”
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266
Use of ICT to Confront COVID-19
Published 2021-06-01“…</p><p style="text-align: justify;"><span>5G Technology</span></p><p style="text-align: justify;">In comparison to 4G, 5G is expected to have better performance in terms of higher speed, lower latency, wider range, increased availability, and more reliability. …”
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267
Modeling and Nonlinear Response of the Cam-Follower Oblique-Impact System
Published 2016-01-01“…The simulation results show that the cam and follower kept permanent contact when the cam rotational speed was low. With the increase of the cam rotational speed, the cam and follower would be separated and then impact under the gravity action. …”
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268
Influence of Polygon Wheel on Dynamic Performance of Meter-gauge Locomotive
Published 2019-03-01“…At last, the change trend of wheel-rail vertical forces was studied under the joint action of polygon wheel and track excitation. The results showed that due to the low running speed of the meter-gauge locomotive, the polygon wheel will form low frequency vibration which will increase the vibration response of the car body; the polygon wheel will greatly increase the wheel-rail vertical forces, but it has little effect on the derailment coefficient; the wave depth limit is inversely proportional to the running speed of the locomotive and the harmonic order; the track excitation will not cover the trend caused by polygon wheel, but it will greatly increase the wheel-rail vertical forces. …”
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269
Navigating Fragmented Globalization: Local Content Policies in a New Trade Order
Published 2025-05-01“…These developments have accelerated a new wave of industrial policies, guided less by economic efficiency and more by strategic imperatives such as national security, supply chain resilience, and technological sovereignty (Cui and Jiang, 2025; Ju et al., 2024; Whulanza, 2023).This geopolitical shift has diminished the influence of established trade bodies such as the World Trade Organization (WTO), which in the past has become a symbol of the globalization of trade. As countries increasingly favour bilateral agreements and unilateral trade actions over multilateral discussions, tools like tariffs, export controls, and investment restrictions have regained prominence (Dang et al., 2024). …”
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270
Detecting and calibrating large biases in global onshore wind power assessment across temporal scales
Published 2025-04-01“…This discrepancy arises from the exponential decay of WPD with increasing ∆t, reflecting the intrinsic properties of wind speed distributions, particularly in regions with weaker winds. …”
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271
Coating silicon catheters with the optimized and stable carotenoid bioproduct from Micrococcus luteus inhibited the biofilm formation by multidrug-resistant Enterococcus faecalis v...
Published 2025-08-01“…Submerged fermentation model validation using the M6 isolate (accession number of PP197163) revealed an increase in carotenoid production up to 6-fold (1.2 g/l). …”
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272
Born too soon: accelerating change to 2030 and beyond
Published 2025-06-01“…Everyone has a role to play. Increasing speed now, and sustaining progress, requires multi-level leadership including from grassroots movements led by parents and affected people through to heads of state. …”
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273
CALCULATION OF LOADS ON THE CONTROLS WITH HELICOPTER MAIN ROTOR OF SINGLE-ROTOR DESIGN
Published 2016-11-01“…On the basis of the hinge moments values data loads on rotorcraft rotating ring, arising at different azimuthal location of the rotating main rotor blades are calculated.The calculations executed on the example of Mi-34 helicopter main rotor have shown that average loads in one revolution in the channel of collective pitch control increase in a control path at flying speed. At the same time loads in the channel of longitudinal control make up to 80 % of loads in the channel of collective pitch control, and in the channel oflateral control - to 40 % that will well be coordinated with the provided data of flight tests.…”
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274
Design, development, and testing of a cassava storage root-cutting robot utilizing a Stewart platform and mask R-CNN for precision agriculture
Published 2024-12-01“…Second, the optimal moving speed and the cutter's speed were determined. In the third step, the robot was integrated with computer vision technology. …”
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275
Epidemiological study on road traffic accidents in Al-Najaf city during 2011
Published 2012-12-01“…Deaths were not related to the number of RTA ( there is no relationship between deaths and the number of crashes but it depends on the severity of the crashes) and this need improving road safety legislations and putting them into action (speed limits, seatbelt laws, helmet laws) and education of people about the danger of speed and the importance of seatbelt wearing and proper and rapid hospital care. …”
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276
A Trajectory Data-Driven Study on the Evolution Mechanism and Control Strategies of Lane-Changing Behavior in Intersection Areas of Expressways
Published 2025-01-01“…After analyzing the sample data using traffic flow theory and statistical theory, the following results were obtained: the speeds increase upon entering and decrease upon exiting weaving zones, while headway distances consistently grow. …”
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277
The influence of the mode of engine operation of transport and technological cars on the beating at the coupling piston-cylinder
Published 2019-12-01“…Relocation or beating of the piston occurs due to the action of lateral force in the crank mechanism, which leads to an increase in friction forces and shock loads in conjunction with the sleeve. …”
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278
Re-use of Building Products in the Netherlands
Published 2019-01-01“…These characteristics indicated to influence (increase) housing survivability. Especially in the West, where most activities in the national housing stock are concentrated, the increase of private single-family houses influences overall housing survivability in the Netherlands (particularly when the pre-1946 group gradually decreases). …”
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279
The effect of bioimpedance analysis on residual renal functionsin patients receiving α-ketoacid-supplementedlow-protein diet by guiding hemodialysis combined with ultrafiltration
Published 2019-01-01“…RRF values(6.0±0.6)in group Chad the best protective action in the 4 groups, with significant difference(P<0.05), at a slow decreasing speed than those in other 3 groups; while RRF values in group A(4.6±0.5 mL/min), group B(4.8±0.6 mL/min) and group C(6.0±0.6 mL/min) had better protective action than group D(3.7±0.6 mL/min), with significant differences(P<0.05).The 24-hour urine volumes in group A(922.4±85.1 mL), group B(901.9±97.9 mL) and group C(1187.1±211.4 mL) were all higher than that in group D(653.2±74.2 mL),with statistically significant difference(P<0.05). …”
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280
Mathematical model of controlled vane hydraulic shock absorber
Published 2023-11-01“…Method of calculation is proposed and theoretical studies are performed on influence of change of volume flow rate of working medium of shock absorber in MR throttle on forces of resistance to rotation on shaft of shock absorber blade.The results of theoretical research. 1) Results of theoretical studies of change of volume flow rate of working medium of controlled hydraulic blade shock absorber are presented. 2) An adequate mathematical model is obtained that is suitable for calculating the characteristics of controlled (adjustable) hydraulic vane shock absorbers, where magnetorheological fluid is used as the working medium of the shock absorber, as well as for selecting control action in the control system. Conclusion. The results of the study are intended for organizations and enterprises engaged in the development and production of heavy high-speed tracked vehicles.The results of the studies can be used to refine the methodology for estimating the smoothness of the heavy high-speed tracked vehicles.…”
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