It is well known that real nonminimum phase (RNMP) zeros impose a tradeoff between the settling time and undershoot in the step response of flexible systems. Existing methods to alleviate this tradeoff predominantly r...
详细信息
Ransomware attacks pose a significant threat to critical infrastructures,demanding robust detection *** study introduces a hybrid model that combines vision transformer(ViT)and one-dimensional convolutional neural net...
详细信息
Ransomware attacks pose a significant threat to critical infrastructures,demanding robust detection *** study introduces a hybrid model that combines vision transformer(ViT)and one-dimensional convolutional neural network(1DCNN)architectures to enhance ransomware detection *** common challenges in ransomware detection,particularly dataset class imbalance,the synthetic minority oversampling technique(SMOTE)is employed to generate synthetic samples for minority class,thereby improving detection *** integration of ViT and 1DCNN through feature fusion enables the model to capture both global contextual and local sequential features,resulting in comprehensive ransomware *** on the UNSW-NB15 dataset,the proposed ViT-1DCNN model achieved 98%detection accuracy with precision,recall,and F1-score metrics surpassing conventional *** approach not only reduces false positives and negatives but also offers scalability and robustness for real-world cybersecurity *** results demonstrate the model’s potential as an effective tool for proactive ransomware detection,especially in environments where evolving threats require adaptable and high-accuracy solutions.
High entropy compounds were proven to exhibit excellent catalytic ***,a series of amorphous CrMnFeCoNi Oxy-carbide films were successfully synthesized by one-step *** demonstrated,the film presented superior electroca...
详细信息
High entropy compounds were proven to exhibit excellent catalytic ***,a series of amorphous CrMnFeCoNi Oxy-carbide films were successfully synthesized by one-step *** demonstrated,the film presented superior electrocatalytic activity for oxygen evolution reaction(OER)with an overpotential of 295 mV at a current density of 10 mA/cm^(2).Uniquely,selective dissolution of Chromium(Cr)was observed,which increased the catalytic activity and showed high stability under a large current density of up to 400 mA/cm^(2).Cr dissolution not only increased the surface area but also improved the conductivity due to newly formed metal-metal bonding,promoting electron transfer and improving OER *** revealed by density functional theory(DFT)calculations,Cr-dissolution mediates the bonding of OER intermediates over surface active sites and ultimately reduces OER *** one-step electrodeposition method and the micro-dissolution mechanism provided a potential way to design and prepare high entropy compound electrodes,aiming to achieve efficient water electrolysis.
Job sequencing and tool switching (SSP) is a well-known combinatorial optimization problem that aims to minimize the number of tool switches. The problem mainly arises in a flexible manufacturing system, in which mach...
详细信息
This paper presents enhanced room-temperature bonding for micro-LEDs tailored to Smart Skin Display applications. While our prior work utilizing a Semi-Additive Plating (SAP) process achieved a micro-LED bonding yield...
详细信息
Active mechanical metamaterials with customizable structures and deformations,active reversible deformation,dynamically controllable shape-lo cking performance and stretchability are highly suitable for applications i...
详细信息
Active mechanical metamaterials with customizable structures and deformations,active reversible deformation,dynamically controllable shape-lo cking performance and stretchability are highly suitable for applications in soft robotics and flexible electronics,yet it is challenging to integrate them due to their mutual ***,we introduce a class of phase-transforming mechanical metamaterials(PMMs) that integrate the above *** arranging basic actuating units according to the designed pattern configuration and positional relationship,PMMs can customize complex and diverse structures and ***-vapor phase transformation provides active reversible large deformation while a silicone matrix offers *** contained carbonyl iron powder endows PMMs with dynamically controllable shape-lo cking performance,thereby achieving magnetically assisted shape locking and energy storing in different working *** build a theoretical model and finite element simulation to guide the design process of PMMs,so as to develop a variety of PMMs with different functions suitable for different applications,such as a programmed PMM,reconfigurable antenna,soft lens,soft mechanical memory,biomimetic hand,biomime tic flytrap and self-contained soft *** are applicable to achieve various 2D deformations and 2D-to-3D deformations,and integrate multiple properties,including customizable structures and deformations,active reversible deformation,rapid reversible shape locking,adjustable energy storing and stretchability,which could open a new application avenue in soft robotics and flexible ele ctronics.
Humans can divide the perceived continuous speech signals, which exhibit double articulation structure, into phonemes and words without explicit boundary points or labels and thus learn a language. In constructive dev...
详细信息
In this work, a framework is proposed for the analytical formulation of dynamic equations for serial metamorphic manipulators using screw theory tools. The integration of structure reconfiguration is achieved in a com...
详细信息
Rapid adaptation to the environment is the long-term task of reinforcement learning. However, reinforcement learning faces great challenges in dynamic environments, especially with continuous state-action spaces. In t...
详细信息
A Reynolds averaged Navier-Stokes(RANS)computational fluid dynamics(CFD)model is built to investigate the hydrodynamic response of a circular ice floe under the influence of a passing ship in calm *** ship,mirroring t...
详细信息
A Reynolds averaged Navier-Stokes(RANS)computational fluid dynamics(CFD)model is built to investigate the hydrodynamic response of a circular ice floe under the influence of a passing ship in calm *** ship,mirroring the KRISO Container Ship’s hull design,progresses near an ice floe whose diameter is 30%of the ship’s length and its thickness is 3 *** ship advances at a constant speed,which is handled by using the overset mesh *** study focuses on the ice floe’s motions and the hydrodynamic forces induced by three speeds and three transverse distances of the passing *** reveal that ship-generated wakes notably influence the ice floe’s motions,with a greater influence on sway than ***,the ship’s speed and proximity distinctly affect the ice floe’s motions.
暂无评论