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381
Aerosol forces mesoscale secondary circulations occurrence: evidence of emission reduction
Published 2024-12-01“…We found that the reduction in wind speed caused by aerosol feedback and related convergence and divergence of the air mass play a pivotal role in SCs evolution. …”
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382
Preparation of Double-Networked Slow-Expanding Nanomicrospheres and Evaluation of Drive Modulation Performance
Published 2024-11-01“…The results showed that the optimal conditions for the preparation of microspheres were m(oil phase):m(water phase) = 3:2, stirring speed of 550 r/min, total crosslinking agent dosage of 0.6% (based on the total mass of monomers, hereinafter the same), initiator dosage of 0.30%, reaction temperature of 45 °C, and reaction time of 4 h. …”
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383
Study and evaluation method of concrete erosion under a wind–sand flow load
Published 2025-12-01“…As the wind speed increases from 18 m/s to 30 m/s, the wind–sand flow pressure on the surface of the concrete specimen increases by 243.43 %, and the strength loss rate increases from 0.03 % to 9.34 %. …”
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384
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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385
Study on mechanical properties of large deformation segmental cement-based honeycomb structure
Published 2024-11-01“…In addition, the RA-AF values show that the loading rate has little effect on the crack type, which is almost unchanged with the increase of loading rate. These studies verify the feasibility of using honeycomb structure to support roadway with fast deformation speed and large deformation. …”
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386
Optimization method of task uninstallation in mobile edge computing environment combining improved deep Q-learning and transmission learning
Published 2024-12-01“…Experiments have shown that TL-DQN performs better in convergence speed compared to other algorithms. For delay sensitive users, the delay growth of TL-DQN algorithm is relatively slow. …”
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387
Hemodynamic evaluation of pulsatile-flow generating device in left ventricular assist devices
Published 2023-04-01“…Objective: to investigate the efficiency of a device that generates pulsatile flow during constant-speed axial-flow pump operation for use in left ventricular assist devices.Materials and methods. …”
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388
Ozonation of 4-aminotoluene as a new method of synthesis of 4-aminobenzaldehyde – an intermediate for the production of anti-tuberculosis drugs
Published 2022-03-01“…It is shown that the developed catalytic system Mn(II)-KBr-H2SO4-Ac2O significantly increases the depth, rate, and selectivity of oxidation of 4-aminotoluene and the main reaction product is 4-aminobenzaldehyde in the form of the corresponding benzylidenediacetate with a yield of 69.5 %. …”
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389
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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390
Evaluation of some photosensitizers against the cotton leaf worm, Spodoptera littoralis (Lepidoptera: Noctuidae), in relation to spectral and thermal reflectance
Published 2024-12-01“…Differences in reflectance were monitored immediately after feeding, confirming the speed and mode of action of those compounds.…”
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391
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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392
RETRACTED: Identification of novel candidate targets for suppressing ovarian cancer progression through IL-33/ST2 axis components using the system biology approach
Published 2023-06-01“…By promoting angiogenesis, immunological suppression, and invasion, CAFs speed up the growth of tumors by changing the extracellular matrix’s structure and composition and/or initiating the epithelial cells (EPT). …”
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393
Assessment of groundnut mutants for drought tolerance during germination and early seedling development
Published 2025-06-01“…The criteria under study were germination percentage (GP), germination speed (GS), mean germination time (MGT), as well as the lengths and dry weights of roots, hypocotyls, and epicotyls. …”
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394
Aluminum doped zinc oxide nanoplatelets based sensor with enhanced hydrogen sulfide detection
Published 2025-03-01“…The AZO thin films exhibited a polycrystalline wurtzite structure and an increase in crystallite size with increasing Al concentrations. …”
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395
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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396
Impact of chevrons on driver behaviour in rural road curves at night-time
Published 2025-09-01“…Due to their characteristics, rural roads have increased risk of fatal crashes. Particularly risky locations on rural roads are horizontal curves, especially during night-time when, due to the lack of available visual information, driver’s perception-reaction time is prolonged. …”
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397
Rates of gyrase supercoiling and transcription elongation control supercoil density in a bacterial chromosome.
Published 2012-01-01“…Gyrase catalyzes negative supercoiling of DNA in an ATP-dependent reaction that helps condense bacterial chromosomes into a compact interwound "nucleoid." …”
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398
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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399
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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400
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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