Associations between physical activity, body esteem, and self-esteem among women with breast and gynecological cancer.

Determinants and interrelations of exercise effects on sleep quality: A multimethod meta-analysis.

Fractional-order subband p-norm adaptive filter via transformation nearest Kronecker product decomposition for active noise control

Contraction-based active disturbance rejection controller for an active ankle foot orthosis

Adaptive active fault-tolerant control for autonomous underwater vehicle with actuator failure

Two-layer Kronecker product decomposition-based robust recursive adaptive filtering for multichannel active noise control

Intelligent control framework for Unmanned Aerial Vehicle autonomous docking based on Linear Active Disturbance Rejection Control and improved Particle Swarm Optimization

CRISPR/Cas9-engineered Salmonella phage displaying antimicrobial peptide LL37 for enhanced antibacterial activity.

Identification of electromechanical participation matrices via scaled-derivative DMDc for improved PPF active vibration control of thin-walled structures

Active and passive wake control of a circular cylinder using rotation and surface texturing

Multi-objective active vibration control strategy combining imitation learning and deep reinforcement learning: Proof-of-concept on a multi-story frame

A hybrid active control approach for the attenuation of low-frequency vibrations and multi-narrowband disturbances

Probabilistic active control of a seismically excited building using probabilistic fuzzy logic controller

Active control of bimodal transonic flow over the payload region of a launch vehicle model using a counterflow jet

Active control of oblique detonation waves through engineered wall properties

Vibrations in craniotomy surgical robots reduce precision and safety. This study introduces a clamp with a double-arrow negative Poisson ratio structure to suppress vibrations. Finite element simulations and skull drilling experiments were conducted to evaluate the vibration reduction of the optimised clamp design compared with the original. Compared with the original clamp, the double-arrow structure significantly reduced vibration during skull drilling. Specifically, the vibration frequency was reduced by 72.4% on the X-axis, 53.0% on the Y-axis, and 66.9% on the Z-axis. Vibration displacement was also reduced-by 59.0% on the X-axis and 84.5% on the Y-axis. Optimal damping performance was achieved with a lateral spacing of 1.2mm and longitudinal spacing of 1.37mm. These results confirm structure's effectiveness in improving vibration stability. The double-arrow clamp effectively reduces vibration in robotic craniotomy. It improves stability and safety through passive structural design, offering a practical alternative to active control methods.

The effect of air deflector angle on ventilation systems in laying hen houses during summer based on CFD analysis.

A control theoretical approach to gene regulation reveals quantitative constraints for dynamic homeostasis in stochastic gene expression.

In response to the severe dust pollution, high operational cost, and short-lived effectiveness associated with conventional water-spraying dust suppression in large open-pit coal mines in grassland regions, this study proposes a source-control strategy grounded in solid waste reutilization. Drill cuttings of mudstone obtained from a representative overburden bench in the study area were utilized as the primary precursor, and a modified mudstone-fly ash geopolymer stemming material was developed via an alkali-activated rapid-setting process. The proposed material enables synergistic optimization of explosive energy confinement and dust suppression at the source during blasting operations.The dust-suppression mechanism of the proposed material was systematically investigated through mechanical performance testing, SEM, XRD, EDS, and smoothed particle hydrodynamics (SPH) simulations.Results show that optimal performance is obtained with a 30% accelerator concentration, a water-glass modulus of 1.50mol/L at 40g/L dosage, and a mixing time of 5min, yielding good flowability and setting times within 30min. Dynamic tests indicate superior toughness, with initiation and propagation fracture toughness of 0.80-2.41MPa m1/2 and 0.61-2.56MPa m1/2, respectively, and a peak stress approximately 7.5% higher than that of in-situ mudstone. Microstructural analyses reveal that synergistic formation of C-S-H and C-A-S-H gels produces a dense and stable matrix.SPH simulations identify an optimal stemming length of 2.5m for uniform energy distribution. Field trials demonstrate reductions of 40.0% in peak dust concentration and 0.346cm/s in maximum vibration velocity, alongside improved fragmentation and suppressed blowout holes. The results demonstrate that the proposed geopolymer stemming material enables a technological transition from conventional post-blast water spraying to in-blast active solidification control. By enhancing explosive energy utilization while achieving source-level dust suppression, the material provides a green, cost-effective, and durable solution for blasting optimization in grassland open-pit coal mines.

Dielectric elastomers (DEs) with high energy conversion density are highly desirable for flexible actuation and sensing applications. However, current DEs only perform well under electrical actuation, incapable of regulating interfacial interactions between materials and their environment, such as active control of electroadhesion and electrowetting-on-dielectric (EWOD). Herein, we report a method using polar small-molecule additives to enable electroactive interfacial regulation in DEs. For electroadhesion, the electroactive interface–enhanced dielectric elastomer (EIEDE) with a metal mesh electrode attains adhesion strength of 31.75 kilopascals at 14 megavolts per meter, which is 488 times greater than that before modification. For EWOD performance, the EIEDE induces droplet contact angle to decrease sharply from 83.15° to 9.92°, showing the best electric-field response among DEs and enabling functions like droplet transport and shape modulation. The EIEDE simultaneously integrates large-strain deformation with electroactive interfacial regulation, achieving breakthrough performance in superhigh electroadhesion and excellent EWOD performance.