Abstract This proof‐of‐concept, double‐blind study was designed to determine the effects of transcranial direct current stimulation (t DCS ) on ‘cost’ performing a secondary cognitive task gait and postural control in healthy young adults. Twenty adults aged 22 ± 2 years completed two separate visits which were assessed immediately before after 20 min session either real or sham t (1.5 mA) targeting left dorsolateral prefrontal cortex. Gait speed stride duration variability, along with...

In digital libraries, a table, as specific document component well condensed way to present structured and relational data, contains rich information often the only source of .that information. order explore, retrieve, reuse that tables should be identified data extracted. Table recognition is an old field research. However, due diversity table styles, results are still far from satisfactory, not single algorithm performs on all different types tables. this paper, we randomly take samples...

A tooth-whitening process using hydrogen peroxide (H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O ) enhanced by a direct-current cold atmospheric-pressure plasma microjet (PMJ) is presented. Compared with the conventional clinical method of H alone, significant improvement was observed when PMJ used in process. The tooth-surface temperature monitored for safety considerations and did not exceed 37°C at distance 1 cm between exit...

Table detection is an important task in the field of document analysis. It has been extensively studied since a couple decades. Various kinds mediums are involved, from scanned images to web pages, plain texts PDF files. Numerous algorithms published bring up challenging issue: how evaluate different context. Currently, most work on table conducts experiments their in-house dataset. Even few sources online datasets targeted at image documents only. Moreover, Precision and recall measurement...

Deep neural networks (DNNs) are found to be vulnerable against adversarial examples, which carefully crafted inputs with a small magnitude of perturbation aiming induce arbitrarily incorrect predictions. Recent studies show that examples can pose threat real-world security-critical applications: "physical Stop Sign" synthesized such the autonomous driving cars will misrecognize it as others (e.g., speed limit sign). However, these image-space cannot easily alter 3D scans widely equipped...

Table detection is always an important task of document analysis and recognition. In this paper, we propose a novel effective table method via visual separators geometric content layout information, targeting at PDF documents. The refer to not only the graphic ruling lines but also white spaces handle tables with or without lines. Furthermore, detect page columns in order assist region delimitation complex pages. Evaluations our algorithm on e-Book dataset scientific show competitive...

<title>Abstract</title> High-voltage ground wire repair robots play a critical role in the maintenance of power lines, where precision motor control and reliability mechanical structures directly impact robot's efficiency job safety. This paper improves robot from both algorithm structure aspects. To enhance accuracy motors used high-voltage robots, based on adaptive sliding mode controller designed this paper, robustness is combined with adjustment mode. Control to improve system's...

Recent studies have shown that cooperative multi-agent deep reinforcement learning (c-MADRL) is under the threat of backdoor attacks. Once a trigger observed, it will perform malicious actions leading to failures or goals. However, existing attacks suffer from several issues, e.g., instant patterns lack stealthiness, trained activated by an additional network, all agents are backdoored. To this end, in paper, we propose novel leverage attack against c-MADRL, BLAST, which entire team...

Shared control combines human intelligence with autonomous algorithms, demonstrating potential for enhancing the intricate and dynamic operational capabilities of robots. In robotic surgery, shared can integrate functions into master–slave control, which enables surgeons to receive certain assistance while maintaining operation. Such a system must handle multiple types dynamically changing motion tasks, instance, trajectory tracking, obstacle avoidance, spatial constraint, safety guarantee....

This article presents a projection system with novel composite pattern for one-shot acquisition of 3D surface shape. The is composed color encoded stripes and cosinoidal intensity fringes, parallel arrangement. stripe edges offer absolute height phases high accuracy, the fringes provide abundant relative involved in distribution. Wavelet transform utilized to obtain phase distribution fringe pattern, measured by triangulation are combined calibrate data unwrapping, so as eliminate initial...

Due to computational complexity of correlation searching, the digital image (DIC) method is often extremely time consuming in processing and optical measurement, which has limited its further applications a great extent. This paper develops fast recursive scheme mathematically reduce burden traditional DIC technique therefore improve efficiency deformation calculation. A global sum-table approach proposed simplify computations all double sums arising zero-normalized cross-correlation...

This paper develops a set of digital volume correlation (DVC) algorithms to address 3-D deformation measurements soft gels with the aid laser-scanning confocal microscopy. As an extension well-developed image (DIC) method, present DVC approach adopts three-dimensional zero-normalized cross-correlation criterion (3-D ZNCC) perform calculations. Based on sum-table scheme and fast Fourier transform technique, algorithm is first proposed accelerate integer-voxel computations. Subsequently, two...

Tactile stimuli produce afferent signals that activate specific regions of the cerebral cortex. Noninvasive transcranial direct current stimulation (tDCS) effectively modulates cortical excitability. We therefore hypothesised a single session tDCS targeting sensory cortices would alter response to tactile stimuli. This hypothesis was tested with block-design functional magnetic resonance imaging protocol designed quantify blood oxygen level-dependent controlled sinusoidal pressure applied...

As an important feature of vehicle, vehicle color plays a significant role in Intelligent Transportation Systems. Traditional recognition using experience-based artificial demarcation threshold and voting method to identify, can't meet the requirements rate complex environments video traffic subdivision color. In this paper, we present inspired on vector matching template normalization operator for pretreatment, then select HSI space Relative error distance algorithm. After experimental...

A novel synthetic aperture radar (SAR) image de-noising method based on the local pixel grouping (LPG) principal component analysis (PCA) and guided filter is proposed. This contains two steps. In first step, we process noisy by coarse filters, which can suppress speckle effectively. The original SAR transformed into additive noise model logarithmic transform with deviation correction. Then, use its nearest neighbors as a vector to select training samples from window LPG block similar...