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السجلات المعروضة 2394 -- 2413 من 2466
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U-healthcare system: State-of-the-art review and challenges
( SpringerLink , 2013 , Article)With the increase of an ageing population and chronic diseases, society becomes more health conscious and patients become "health consumers" looking for better health management. People's perception is shifting towards ... -
UAV-based Semi-Autonomous Data Acquisition and Classification
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)Air pollution is a major issue contributing to global warming that threaten the quality of life on Earth. Numerous research disciplines are combining their efforts to combat air pollution by developing new methods to monitor ... -
Ultra high gain step up DC/DC converter based on switched inductor and improved voltage lift technique for high-voltage applications
( John Wiley and Sons Inc , 2022 , Article)Voltage lift is a well-known technique to improve the voltage gain of the converter. A combination of switched inductor and the conventional voltage lift technique can be used to achieve high gain, but the semiconductor's ... -
Ultra-high aspect ratio copper nanowires as transparent conductive electrodes for dye sensitized solar cells
( SPIE , 2016 , Conference Paper)We report the synthesis of ultra-high aspect ratio copper nanowires (CuNW) and fabrication of CuNW-based transparent conductive electrodes (TCE) with high optical transmittance (>80%) and excellent sheet resistance (Rs <30 ... -
Ultrahigh Aspect Ratio Copper-Nanowire-Based Hybrid Transparent Conductive Electrodes with PEDOT:PSS and Reduced Graphene Oxide Exhibiting Reduced Surface Roughness and Improved Stability
( American Chemical Society , 2015 , Article)Copper nanowires (CuNWs) with ultrahigh aspect ratio are synthesized with a solution process and spray-coated onto select substrates to fabricate transparent conductive electrodes (TCEs). Different annealing methods are ... -
Ultrasound Intima-Media Complex (IMC) Segmentation Using Deep Learning Models
( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article)Common carotid intima-media thickness (CIMT) is a common measure of atherosclerosis, often assessed through carotid ultrasound images. However, the use of deep learning methods for medical image analysis, segmentation and ... -
Ultrasound-Based Image Analysis for Predicting Carotid Artery Stenosis Risk: A Comprehensive Review of the Problem, Techniques, Datasets, and Future Directions
( MDPI , 2023 , Article Review)The carotid artery is a major blood vessel that supplies blood to the brain. Plaque buildup in the arteries can lead to cardiovascular diseases such as atherosclerosis, stroke, ruptured arteries, and even death. Both ... -
Unaligned inductance calculation using flux tube approach for rotor conducting screen-based SRM
( John Wiley and Sons Inc , 2021 , Article)This article investigates the effect of utilising rotor conducting screens within a switched reluctance machine (SRM). Conducting, non-magnetic materials such as aluminium or copper are inserted into the interpole regions ... -
Uncertainty awareness in transmission line fault analysis: A deep learning based approach
( Elsevier Ltd , 2022 , Article)With the expansion of the modern power system, it is of increasing significance to analyze the faults in the transmission lines. As the transmission line is the most exposed element of a power system, it is prone to different ... -
Underlay cognitive radio : What is the impact of carrier aggregation and relaying on throughput ?
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)In this paper, we investigate joint relay selection and optimal power allocation, as a means to maximize the achievable rate of an underlay cooperative cognitive radio with carrier aggregation, taking into account the ... -
Underlay cognitive radio: What is the impact of carrier aggregation and relaying on throughput?
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)In this paper, we investigate joint relay selection and optimal power allocation, as a means to maximize the achievable rate of an underlay cooperative cognitive radio with carrier aggregation, taking into account the ... -
Understanding probabilistic cognitive relaying communication with experimental implementation and performance analysis
( MDPI AG , 2019 , Article)Efficiently use of the limited wireless spectrum can be achieved by cooperative cognitive relaying, where secondary users (SUs), who do not pay for the licensed spectrum and have better channel condition to the primary ... -
Undetectable Cyber Attacks on Communication Links in Multi-Agent Cyber-Physical Systems
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)The objective in this paper is to study and develop conditions for a network of multi-agent cyber-physical systems (MAS) where a malicious adversary can utilize vulnerabilities in order to ensure and maintain cyber attacks ... -
Unified energy management and load control in building equipped with wind-solar-battery incorporating electric and hydrogen vehicles under both connected to the grid and islanding modes
( Elsevier Ltd , 2019 , Article)This paper presents a unified model for home energy management. The proposed model optimizes the cogeneration of wind, solar, and battery storage units. The introduced tool considers electric and hydrogen vehicles and ... -
Unified Performance Analysis for Multiuser Mixed η - μ and M - Distribution Dual-Hop RF/FSO Systems
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)A mixed free-space optical (FSO) communication scheme is considered with the help of a fixed gain relay. We assume that the links from the source to the relay are radio frequency links with multiuser diversity operating ... -
Unified power flow controller for low voltage ride through capability of wind-based renewable energy grid-connected systems
( IEEE , 2011 , Conference Paper)Due to the large increase in number of installed high power renewable energy generating systems such as wind energy power plants, one of the important evolving requirement is riding through the fault at low or zero voltage. ... -
Unipolar Single Reference Multicarrier Sinusoidal Pulse Width Modulation Based 7-level Inverter with Reduced Number of Semiconductor Switches for Renewable Energy Applications
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)In the present scenario of increasing power demand and depletion of fossil fuel results in the research advancements in the field of renewable energy sources. Among various types of renewable energy sources, photovoltaic ... -
Unleashing the secure potential of the wireless physical layer: Secret key generation methods
( Elsevier B.V. , 2016 , Report)Within the paradigm of physical layer security, a physical layer characteristic is used as a common source of randomness to generate the secret key. This key is then used to encrypt the data to hide information from ... -
User cooperation schemes in the soft handover regions
( IEEE , 2009 , Conference Paper)This paper examines the effect of relay-assisted soft handover on the performance of the uplink communication in the third generation mobile networks. We focus on users which are traveling over two cell boundaries in a ... -
Using big data and federated learning for generating energy efficiency recommendations
( Springer Science and Business Media Deutschland GmbH , 2022 , Article)Internet of Things (IoT) devices are becoming popular solutions for smart home and office environments and contribute the most to energy efficiency. The most common implementation of such solutions relies on smart home ...
