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381
THE EUROPEAN PUBLIC SYSTEM OF HUMAN RESOURCES. PERFORMANCE IN ORGANIZATIONS AND GOOD PRACTICES FOR ROMANIA
Published 2018-05-01Subjects: Get full text
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383
Remote web-based self-assessment of visual acuity versus ETDRS in patients with macular diseases: a method comparison study
Published 2025-03-01“…Abstract Background Macular diseases (MD) lead to frequent clinic visits, involve time-consuming visual acuity (VA) measurements by professionals. …”
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384
Research on a Density-Based Clustering Method for Eliminating Inter-Frame Feature Mismatches in Visual SLAM Under Dynamic Scenes
Published 2025-01-01“…Dynamic feature points interfere with inter-frame motion pose estimation, thereby affecting the accuracy of map construction and the overall robustness of the visual SLAM system. To address this issue, this paper proposes a method for eliminating feature mismatches between frames in visual SLAM under dynamic scenes. …”
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385
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386
Image Enhancement Based on Wavelet Transform and Contrast Limited Adaptive Histogram Equalization
Published 2018-12-01“…Contrast limited adaptive histogram equalization (CLAHE) is an efficient algorithm to improve the local details of an image In this paper, we propose an image enhancement method named CLAHE Discrete Wavelet Transform to solve the problem of contrast and overstretched noise in the application process,which combines CLAHE and discrete wavelet transform This method consists of three major steps: First, the original image is decomposed into low frequency and high frequency by the discrete wavelet transform Then, the low frequency coefficients are enhanced by CLAHE and the high frequency coefficients is filtered to limit the noise enhancement This is because the highfrequency component corresponding to the details, the low frequency portion comprises most of the noise image haze Finally, reconstruct the image by taking inverse discrete wavelet transform of the new coefficients…”
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387
Underwater acoustic OFDM channel equalization based on virtual time reversal mirror
Published 2015-01-01“…To solve the problem of the severe inter-symbol interference of orthogonal frequency division multiplexing (OFDM) communication caused by underwater acoustic multipath channel,a virtual time reversal channel equalization scheme was proposed.VTRM was able to shorten the channel impulse response and alleviate the phase distortion caused by the acoustic channel for its characteristic of the temporal compression and phase conjugation in frequency domain.The matching pursuit (MP) algorithm was applied to estimate the channel impulse response which could estimate the channel amplitude,time delay and phase accurately.It provided the channel information for the VTRM channel equalization.It also improved a lot compared to the traditional matching correlation channel estimation method which couldn't estimate the channel phase and the estimation precision was low.The simulation,pool trail and Songhua lake experiment show that the performance of VTRM channel equalization is better than that of the PTRM and LS channel equalization in the OFDM underwater acoustic communication.…”
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388
Enhanced Performance of CAP System Using an Overlap Frequency-Domain Equalization Scheme
Published 2016-01-01“…In this paper, an overlap frequency-domain equalization (OFDE) scheme is proposed and experimentally demonstrated in an intensity modulation and direct-detection optical communication system with carrierless amplitude and phase (CAP) modulation. …”
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389
Centralization or Equalization? Policy Trend Guidance for Improving Grain Production Security in China
Published 2025-03-01Get full text
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390
Improving the convergence property of DFE using the deterministic blind channel estimation
Published 2005-01-01Subjects: “…decision feedback equalizer;blind channel estimation;blind equalization;subspace method;single-input multiple output…”
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391
Improving the convergence property of DFE using the deterministic blind channel estimation
Published 2005-01-01Subjects: “…decision feedback equalizer…”
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392
Chaotic-mapping and Gaussian perturbation-based multi-channel constant modulus blind equalization
Published 2025-05-01“…The improved constant modulus blind equalization algorithm based on particle swarm optimization is a new blind equalization method that introducing particle swarm optimization to find the optimal solution for the equalizer, thereby improving the convergence speed of the algorithm. …”
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393
ColorPhAST: a visual rapid colorimetric assay for detecting phage-susceptibility in Escherichia coli
Published 2025-07-01Subjects: Get full text
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394
Graph visualization efficiency of popular web-based libraries
Published 2025-05-01“…Abstract Web-based libraries, such as D3.js, ECharts.js, and G6.js, are widely used to generate node-link graph visualizations. These libraries allow users to call application programming interfaces (APIs) without identifying the details of the encapsulated techniques such as graph layout algorithms and graph rendering methods. …”
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395
Evaluating Visual Satisfaction in Urban Sculpture Spaces: A Multi-Criteria Decision Making Approach
Published 2025-01-01“…The assessment of visual satisfaction in urban sculpture spaces has emerged as a topic of paramount interest due to the increased emphasis given to aesthetic quality and the general quality of urban environments. …”
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396
Visual Reliance in Severe Hearing Loss: Visual Evoked Potentials (VEPs) Study
Published 2025-01-01“…Background/Objectives: Whether to rely on the visual cues in cases with severe hearing loss with adequate amplification is a matter of debate. …”
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397
Pattern-reversal visual evoked potentials in prosthetic vision and simulated visual reduction
Published 2024-05-01“…Objective To quantitatively evaluate visual evoked potentials (VEPs) in prosthetic vision and simulated visual reduction.Methods and analysis Four blind patients implanted with the Argus II retinal prosthesis and seven sighted controls participated. …”
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398
Differential affection of the visual information sub-streams in a patient with visual agnosia
Published 2025-02-01“…The dorsal stream (DS) is usually intact in these patients, and it can be derived from well-preserved reaching and grasping of visually presented objects. In this study, we presented a new case of a visual agnosic patient (AC) with an extensive lesion of the secondary visual cortex.MethodsWe examined the kinematics of his grasping behavior towards common day-to-day objects compared to a healthy control group. …”
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399
What Is in the Eye and Mind of Early Childhood Professionals? A Mixed-Methods Study Using Eye-Tracking and Written Reflections to Investigate the Congruence Between Visual and Reflective Focus
Published 2025-06-01“…Professional reflection is key to the professionalization of pedagogical professionals. Using a mixed-methods design that combines eye-tracking methodology with retrospective written reflections, this study investigates the visual and reflective processes of early childhood professionals when interpreting video-recorded pedagogical situations. …”
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400
Showing how you Found Waldo: Navigating Visual Messiness by Distilling Visual Patterns into Icons
Published 2025-04-01“…Inductive analyses of visuals remain sparse in fields dominated by quantitative methods. …”
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