Janus heterostructures consisting of multiple jointed components with distinct properties have gained growing interest in the photoredox catalytic field. Herein, we developed a facile low-temperature method to gain anisotropic one-dimensional Au-tipped CdS (Au-CdS) nanorods (NRs), followed by assembling Ru molecular co-catalyst (RuN

To avoid the cumbersome calculation of inverse kinematics and improve efficiency obstacle avoidance, a novel potential guided bidirectional rapidly-exploring random tree star with direct connection strategy for redundant robot manipulators in joint space is proposed. Firstly, an expansion based on artificial field designed space. Then this combined goal-biased (GB-RRT*) to ability avoidance. Secondly, efficiency. Finally, effectiveness superiority proposed algorithm are verified by...

Utilizing the effective energy transfer from Cr 3+ to Ni 2+ realize blue Light Excited Broadband NIR-II-emitting Li 2 ZnSn 3 O 8 :Cr ,Ni Phosphor.

A DNA electrochemical sensor was fabricated for Pb²⁺ detection.

A novel dynamic-sliding-mode-manifold-based continuous fractional-order nonsingular terminal sliding mode control is proposed for a class of second-order nonlinear systems. By designing the parameter in manifold as an exponential function tracking error, dynamic can be obtained by adjusting online. Even if reference signals change, does not need repetitive offline optimization. combining fast-terminal-sliding-mode-type reaching law, system states are attracted to quickly, enhancing...

Abstract Fused deposition modeling (FDM) process with laser assistance can effectively enhance the interfacial strength of short carbon fiber/poly‐ether‐ether‐ketone (SCF/PEEK) composites. However, excessive crystallization semi‐crystalline matrix generally results in irregular shrinkage, which seriously deteriorates dimensional accuracy composite specimens. To overcome this issue, we establish a novel heat treatment technique by combinations and post‐treatment to improve interlayer...

A wavelet transformation-based fuzzy reflex control method is proposed to prevent slip and maintain stable grasping posture for prosthetic hands. key component of the that response time from detection prevention very short. The mainly includes detection, force estimation, use a controller. In initial information can be rapidly obtained via transformation as soon disturbances cause grasped object slip. This shortens control. then trigger estimation model presented estimate increment used...

Piezoelectric actuators (PEAs), as a smart material with excellent characteristics, are increasingly used in high-precision and high-speed nano-positioning systems. Different from the usual positioning control or fixed frequency tracking control, more accurate rate-dependent PEA nonlinear model is needed random signal dynamic systems such active vibration control. In response to this problem, paper proposes Hammerstein based on fractional order rate correlation. The improved Bouc-Wen...

Human hands can rapidly perceive the stiffness of an object and quickly adapt to different soft hard objects by adjusting grasp force each finger. However, patients with upper-limb loss have difficulty in outputting accurate based on information, as efferent afferent feedback nerve channels was losing. To realize stiffness-based control a prosthetic hand, it is necessary know be grasped advance. This article proposed novel method estimate kinematics model fingers. Using underactuated...

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The detection of initial slip is very important for biomimetic robotic hands to adjust the grasping force in time and achieve a stable grasp when environmental disturbances are exerted on grasped objects insufficient. An method proposed this paper. First, dynamical model built based theory friction-induced vibration at near-zero velocity. Then, responses typical derived analytically. Theoretical analyses show that oscillating discontinuous disturbance object, resulting Finally,...

Novel 1-3 type multiferroic composite thin films were prepared via a simple 0-3 fabrication process. The orientation of the Ni0.5Zn0.5Fe2O4 (NZFO) nanocrystals in BaTiO3-Ni0.5Zn0.5Fe2O4 (BTO-NZFO) was controlled by magnetron sputtering, and controlling effect such on magnetoelectric coupling investigated detail. NZFO lattice BTO-NZFO grew with (100) under induction (111) plane Si. transfer substrate stress between closely contacted grains also contributes to nanocrystals. 0.6BTO-0.4(100)NZFO...

A shortage of soil property parameters is preventing the automatic excavation system from being used in a digging operation adaptively like an operator. This study proposes new method parameter identification and resistance prediction that classifies entire process into three parts: penetration, cutting, loading. fuzzy estimation strategy introduced penetration to estimate depending on peak value average resistance. Furthermore, improved FEE model was describe soil-tool interaction predict...

When a prosthetic hand grasps an object, proper grasping force should be exerted according to the stiffness properties of grasped object so that damage caused by excessive or slide insufficient is prevented. To implement detection and simultaneously prevent errors defects use sensors difficulties in direct measurement deformation sensor-less method contact proposed for single degree freedom with self-locking mechanism. In this method, sensor signals are replaced motor current signals. An...

With the wide application of multi-layer and multi-pass welding in industry, traditional manual method is difficult to meet needs manufacture. Welding Robot has advantages stable productivity, ensuring quality even special environment, so robots are used at a growing trend manufacturing fields complete different tasks. In this paper, an intelligence learning for robot designed, aiming prediction process parameters bead geometry process, deep machine algorithms realization. It provides...

This paper presents an approach to research the active vibration isolation system under LQG control strategy through method of co-simulation using ADAMS and MATLAB. Create System's dynamics simulation prototype in ADAMS, return acceleration platform, dynamic deflection base's displacement as performance parameters, then establish controller MATLAB, import into MATLAB for control. The results indicate that can effectively improve effect system, meanwhile which simplify process simulation,...

The destruction of gaseous styrene was studied using a low-temperature plasma induced by tubular multilayer dielectric barrier discharge (DBD). results indicate that the applied voltage, gas flow rate, inlet concentration and reactor configuration play important roles in removal efficiency (ηstyrene) energy yield (EY). Values ηstyrene EY reached 96% 15567 mg/kWh when layers quartz tubes were set at 10.8 kV, 5.0 m/s, 229 mg/m3 5 layers, respectively. A qualitative analysis byproducts detailed...