Abstract Although crack inspection is a routine practice in civil infrastructure management (especially for highway bridge structures), it time‐consuming and safety‐concerning to trained engineers costly the stakeholders. To automate this near future, algorithmic challenge at onset detect localize cracks imagery data with complex scenes. The rise of deep learning (DL) sheds light on overcoming through from big data. However, how exploit DL techniques yet be fully explored. One primary...

Food addiction is associated with attention bias and response inhibition deficits, while the relationship between these two domains unclear. Participants body mass index (BMI) ≥ 25 exhibiting food behaviors (FA group, n = 20) were compared healthy controls (HC 23). We examined attention-inhibition mechanisms using resting EEG microstate analysis, food-cue-evoked event-related potentials (ERPs), non-food Go/No-Go tasks. Overweight individuals demonstrated attentional as indicated by...

Background:Working memory (WM) is a core cognitive function closely linked to various processes including language, decision making, and reasoning. Transcranial alternating current stimulation (tACS), non-invasive brain technique, has been shown modulate abilities treat psychiatric disorders. Although gamma tACS (γ-tACS) demonstrated positive effects on WM, its underlying neural mechanisms remain unclear. Methods: In this study, we employed electroencephalogram (EEG) microstate analysis...

Hypothesis: Robotic insertions of actively steerable perimodiolar electrode arrays can substantially reduce insertion forces and prevent buckling. Background: Perimodiolar electrodes have been proven to be effective in reducing forces. However, the dedicated techniques atraumatic require intensive surgeon training. Although some specialized medical robots developed help surgeons certain minimally invasive surgeries, none are applicable insertions. Methods: A robot prototype capable...

Aiming at the oscillation problem in electric vehicle powertrain systems, an H_∞ synthesis robust control strategy is proposed from angle of acceleration control. The desired frequency characteristics system are obtained through loop-shaping, which ensures high-frequency and low-frequency performance system, μ-synthesis robustness under uncertainty parameters. By adding coprime factor perturbation stability margin into existing suppressed. In simulation analysis,...

Accurate forecasting of short-term wind speed is a key technology to enable efficient and reliable operation microgrids with generators. Results prediction (WSP) methods in the current literature are subject errors due random nature limited generalization forecast algorithms. In this paper, WSP method based on model forecast, error correction, power generation, support vector machines (SVMs), algorithms proposed. proposed method, built predict original predicted speed. Subsequently,...

The abstract of this paper covers a key topic, that is, the research on two-way transmission source and load in energy Internet based analysis characteristics power grid. This emphasizes importance system, which is one infrastructures to support modern society, but it also facing more complex challenges. One them rapid growth renewable energy, its volatility uncertainty pose challenge management operation system. In research, discusses different modes curve, including intraday seasonal...

The increasingly complex battlefield environment has put forward higher requirement on Unmanned Aerial Vehicle (UAV) system, where the cooperative area reconnaissance (CAR) is primary task for multi-UAV. However, current research results hardly balance optimality and real-time property. Especially, how to avoid process emergent threats rarely considered UAV formation. So this paper researched problems of CAR multi-UAV in dynamic obtain optimum efficiency premise ensuring real-time. Firstly,...

Brain-computer interfaces (BCIs) have been used in two-dimensional (2D) navigation robotic devices, such as brain-controlled wheelchairs and vehicles. However, contemporary BCI systems are driven by binary selective control. On the one hand, only directional information can be transferred from humans to machines, "turn left" or right", which means that quantified value, radius of gyration, cannot controlled. In this study, we proposed a spatial gradient controller corresponding environment...

Objective.Brain-machine interfaces (BMIs) interpret human intent into machine reactions, and the visual stimulation (VS) paradigm is one of most widely used these approaches. Although VS-based BMIs have a relatively high information transfer rate (ITR), it still difficult for to control machines in dynamic environments (for example, grabbing object or targeting walking person).Approach.In this study, we utilized BMI based on augmented reality (AR) VS (AR-VS). The proposed was dynamically...

The paper presents an efficient and parallel symbol timing recovery algorithm suitable for very high speed demodulator easy to implement on FPGA platform. proposed has a dual feedback structure which makes up of frequency domain phase correction, first reported in Alternate Parallel Receiver (APRX), FIFOs based delete-keep algorithm. In the error detector, we adopt O\&M We also investigate their implementation structures fixed point simulation shows that our can work efficiently with...

This paper presents the principle of motion, mechanical modeling and key characteristics propulsive force a new flexible-fin traveling wave propulsion mechanism used in an amphibious robot. Firstly, form motion basic flexible fins on ground are described. During fluctuation fins, relative between outermost contact line fin surface generates forward lateral along surface. Based laws kinematics principles friction mechanics, mechanics model during is established. By numerically solving...

Transmitting quantum states and entanglement through channels is one of the key requirements for development computation. Quantum discord has received much attention in We transfer two parallel XXZ spin chains with phase shift. The maximum can be enhanced by It will take more time to obtain an some cases, but other both speed are In thermodynamic limit, effect shift disappears exponentially decays increasing receiving position. Our results on generalized a family linear Hamiltonians.

This paper presents an all digital timing recovery scheme for high speed modem. Compared to the conventional schemes, which use a VCO drive A/D sampling clock, new based on interpolation filter is easy simulate and implement. In case oversampling rate slightly larger than 2, can also give precise recovery. So this very suitable symbol situation. Firstly, theory of asynchronous presented. Then, implementation proposed. As key component, controller are analyzed. Finally, Xilinx Virtex II...

In this work, we address the inverse kinetics problem of motion planning soft biomimetic actuators driven by three chambers.Soft have been applied in many applications owing to their intrinsic softness.Although a mathematical model can be derived describe dynamics actuator, it is still not accurate capture nonlinearity and uncertainty material system.Besides, such complex time-consuming, so easy apply real-time control unit.Therefore, developing model-free approach area could new idea.To...

This paper introduces the design and manufacture method of a new type soft fluidic elastomer actuators. Firstly, we describe scheme actuator drive principle omnidirectional bending elongation. Based on 3D printing, three elastic air chambers constrained by double helix winding are radially distributed driven positive pressure. The actuators can complete movement degrees freedom bending, elongation contraction. And then, in order to test characteristic parameters actuator, system is designed...

Abstract The main purpose of this study is to explore the lexical richness Chinese candidates different proficiency levels in a graded examination spoken English (GESE), which an exam developed by Trinity College, London and administered Beijing, China trained local examiners. We compared 5 indices mean length utterances (MLU) GEGE three levels. quantitative results first indicate that plays important role these oral interviews there are significant correlations between indices, MLU level...

This paper introduces the modular design and manufacturing method, mechanical model, test verification of a new type soft actuator driven by fluid. First, scheme driving principle omnidirectional bending elongation are described. Three print-based elastic air cavities constrained fire lines distributed radially inside actuator. The can complete 3 DOF motions elongation. From basic material mechanics, novel model elastomer is established. By numerically solving nonlinear relationship between...

Antarctic is perfect site for astronomic observatory. But also challenge the telescope design because of low temperature. The temperature can impact characterization control system, especially drive system. following phenomenon be produced due to 1. viscosity grease will increase. 2. clearance bearing and gear decrease. These two factors lead increase in load torque system with drop. This would cause bad tracking accuracy speed creeping. In order overcome improve telescope's track accuracy....

Haptic object perception is still poorly understood up to now. This study investigated the ability of human fingers discriminate volume objects by passive touch. Experiments measured discrimination threshold using three tasks: tactile perception, area and active perception. In each trial, we utilized two plastic cubes successively stimulate fingers, participants were instructed make comparisons between stimulus objects’ area. Results showed that there was no significant difference in...

An efficient algorithm for facial features extractions is proposed. The we extracted are the edges of two eyes, nose and mouth. based on an improved Gabor wavelets edge detector to detect face region regions. experimental results show that proposed method robust against expression, illumination, can be also effect if person wearing glassed, so on.

We have designed, simulated, fabricated and tested a software-defined system integrated communication function on active phased array radar. The radar are separated by time division considering the condition of practical hardware platform which will not affect performance. Radar is working in mode or for different demands. A message structure order to verify feasibility proposed system. communications-receiver was evaluated simulation. measured bit error rate at 3Mb/s less than 1e-6. When ad...

Designing molecules for multivalent targeting of specific disease markers can enhance binding stability which is critical in molecular imaging and targeted therapy. Through rational design, the nanostructures formed by self-assembly peptides are expected to achieve increasing density recognition ligands. However, balance between peptide remains elusive. In this study, we designed a targeting-peptide-based probe system TAP consist signal unit, motif, assembly motif Pro-leverage. It verified...