Results 21 to 30 of about 3,521,247 (244)
Energy-efficient sensing in wireless sensor networks using compressed sensing [PDF]
, 2014 Sensing of the application environment is the main purpose of a wireless sensor network. Most existing energy management strategies and compression techniques assume that the sensing operation consumes significantly less energy than radio transmission ...
Razzaque, Mohammad Abdur +5 more
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Heart Rate Measurement Based on 3D Central Difference Convolution with Attention Mechanism
Sensors, 2022 Remote photoplethysmography (rPPG) is a video-based non-contact heart rate measurement technology. It is a fact that most existing rPPG methods fail to deal with the spatiotemporal features of the video, which is significant for the extraction of the ...
Xinhua Liu +3 more
doaj +1 more source
Sensors and Sensor Networks [PDF]
Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC), 2004 Recently, sensing technology has been experiencing quantum leaps in price reduction and in performance. This has occurred because of simultaneous advances in new materials, cheap computing power, micro to nano-level integrated fabrication, wireless networking, and sophisticated information technology. At the same time, the pace of business and the pace
openaire +1 more source
Efficient Spatiotemporal Attention Network for Remote Heart Rate Variability Analysis
Sensors, 2022 Studies have shown that ordinary color cameras can detect the subtle color changes of the skin caused by the heartbeat cycle. Therefore, cameras can be used to remotely monitor the pulse in a non-contact manner.
Hailan Kuang +3 more
doaj +1 more source
Networking paradigm for distributed sensor networks
Second IEEE International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 2003. Proceedings, 2004 An increasing number of distributed sensor networks are being deployed in a wide spectrum of scenarios for both military and civilian applications. The design of such systems requires the integration of many methods for solving various problems ranging from sensor deployment, through data communication, information fusion to environmental inference and
S. Sitharama Iyengar +2 more
openaire +2 more sources
Degradation of acephate using combined ultrasonic and ozonation method
Water Science and Engineering, 2015 The degradation of acephate in aqueous solutions was investigated with the ultrasonic and ozonation methods, as well as a combination of both. An experimental facility was designed and operation parameters such as the ultrasonic power, temperature, and ...
Bin Wang +8 more
doaj +1 more source
A Chinese Grammatical Error Correction Method Based on Iterative Training and Sequence Tagging
Applied Sciences, 2022 Chinese grammatical error correction (GEC) is under continuous development and improvement, and this is a challenging task in the field of natural language processing due to the high complexity and flexibility of Chinese grammar.
Hailan Kuang +3 more
doaj +1 more source
Maintenance efficient routing in wireless sensor networks [PDF]
, 2005 Communication patterns define the energy depletion profile of a wireless sensor network. In particular, routing defines which areas of the sensor field are subject to a higher traffic load. In these areas, sensor nodes deplete faster than in areas with a
Roedig, Utz +2 more
core +5 more sources
Analysis and evaluation of distance-to-mean broadcast method for VANET
Journal of King Saud University: Computer and Information Sciences, 2014 Multi-hop broadcast is a critical component in embedded communication systems. Some vehicular ad-hoc network (VANET) applications in particular use broadcast communications extensively.
Michael Slavik +2 more
doaj +1 more source
A Keyword Detection and Context Filtering Method for Document Level Relation Extraction
Applied Sciences, 2022 Relation extraction (RE) is the core link of downstream tasks, such as information retrieval, question answering systems, and knowledge graphs. Most of the current mainstream RE technologies focus on the sentence-level corpus, which has great limitations
Hailan Kuang +3 more
doaj +1 more source