Results 81 to 90 of about 72,624 (215)

Environmental-friendly underwater acoustic communication and networks

open access: yes, 2012
Intense harvesting of ocean resources extended exploitation activities to previously unexplored open ocean areas, to greater ocean depths and to remote polar regions. Such activities include, but are not limited to, energy, geology and fisheries.
Jesus, S. M.
core  

ARMNet: A Network for Image Dimensional Emotion Prediction Based on Affective Region Extraction and Multi-Channel Fusion

open access: yesSensors
Compared with discrete emotion space, image emotion analysis based on dimensional emotion space can more accurately represent fine-grained emotion. Meanwhile, this high-precision representation of emotion requires dimensional emotion prediction methods ...
Jingjing Zhang   +4 more
doaj   +1 more source

Prefix-Free Frequency Domain Equalization for Underwater Acoustic Single Carrier Transmissions

open access: yesIEEE Access, 2018
Prefixes, in forms of cyclic-prefixes or zero-padding, have often been viewed as indispensable in underwater acoustic single-carrier transmissions to avoid inter-block interference (IBI) and to formulate circular convolution.
Xingbin Tu, Aijun Song, Xiaomei Xu
doaj   +1 more source

Dual-Transformer Feature Enhancement for Infrared Small-Dim Target Detection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Infrared small-dim target detection constitutes a critical technology with broad applicability across both remote sensing and surveillance. Despite recent remarkable progress, deep learning-based methods still struggle with weak signal strength, low ...
Guoliang Hu   +5 more
doaj   +1 more source

Sound Privacy: A Conversational Speech Corpus for Quantifying the Experience of Privacy

open access: yes, 2019
With the growing popularity of social networks, cloud services and online applications, people are becoming concerned about the way companies store their data and the ways in which the data can be applied.
Das, Sneha   +9 more
core   +1 more source

Acoustical communication in honeybees [PDF]

open access: yesApidologie, 1993
Il a ete montre ces dernieres annees que, a cote des pheromones, les signaux sonores et vibratoires jouent un role important dans la communication des abeilles dans l'obscurite de la ruche. Le chant des jeunes reines (fig 1) est produit par la vibration du thorax et transmis par les rayons, qui presentent des oscillations de 0,1 a 1 μm.
openaire   +1 more source

Human Color Perception: The Impact of Color Perception on Fine-Grained Emotion Prediction in Movie and Television Videos

open access: yesSensors
This article investigates the impact of visual color perception on fine-grained emotion prediction in videos, analyzing the contribution of color perception features in fine-grained emotion prediction.
Shuang Wang   +6 more
doaj   +1 more source

A Novel Single-Beacon Navigation Method for Group AUVs Based on SIMO Model

open access: yesIEEE Access, 2018
Single-beacon navigation for group autonomous underwater vehicles (AUVs) suffers from long navigation period and asynchronization. This paper addresses the problem by introducing the single-input-multiple-output (SIMO) model, where, a single AUV ...
Sibo Sun   +4 more
doaj   +1 more source

The relationship between acoustic indices of speech motor control variability and other measures of speech performance in dysarthria

open access: yes, 2012
Previous studies suggested that variability indices based on information extracted from the acoustic signal are potentially useful in assessing dysarthric speech.
Van Brenk, Frits, Lowit, Anja
core  

State-space representation for digital waveguide networks of lossy flared acoustic pipes [PDF]

open access: yes, 2009
This paper deals with digital waveguide modeling of wind instruments. It presents the application of state-space representations to the acoustic model of Webster-Lokshin. This acoustic model describes the propagation of longitudinal waves in axisymmetric
Mignot, Rémi   +2 more
core  

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