Results 41 to 50 of about 173,911 (316)
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
Dynamic key ring update mechanism for mobile wireless sensor networks [PDF]
, 2013 Key distribution is an important issue to provide security in Wireless Sensor Networks (WSNs). Many of the key pre-distribution schemes proposed for static WSNs perform poorly when they are applied to Mobile Wireless Sensor Networks (MWSNs).
Şahin, Merve +3 more
core +1 more source
A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection
Advanced Engineering Materials, EarlyView.A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan +9 more
wiley +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
Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere
Advanced Engineering Materials, EarlyView.A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz +4 more
wiley +1 more source
Research on Migration Strategy of Mobile Agent in Wireless Sensor Networks
International Journal of Distributed Sensor Networks, 2013 Big data and distributed computing are of great importance in wireless sensor networks (WSNs). They are always bonded together, and the latter one upholds the former one. In distributed computing, mobile agent model is the mainstream technology.
Dai Ting +4 more
doaj +1 more source
An Improved Intrusion Detection Algorithm Based on GA and SVM
IEEE Access, 2018 In the era of big data, with the increasing number of audit data features, human-centered smart intrusion detection system performance is decreasing in training time and classification accuracy, and many support vector machine (SVM)-based intrusion ...
Peiying Tao, Zhe Sun, Zhixin Sun
doaj +1 more source
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
IEEE Access, 2017 Ciphertext policy attribute-based encryption (CP-ABE) is a promising cryptographic technique for fine-grained access control of outsourced data in the cloud. However, some drawbacks of key management hinder the popularity of its application. One drawback
Guofeng Lin, Hanshu Hong, Zhixin Sun
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