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Correlation of patient characteristics with peak enhancement time for pediatric cardiac computed tomography in congenital heart disease.
J Clin Imaging Sci
December 2024
Department of Radio Diagnosis and Imaging, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India.
Objectives: Cardiac computed tomography (CCT) plays a key role in diagnosing congenital heart disease (CHD), emphasizing the need for specialized protocols in newborns due to CHD's complexity. The aim is to explore the relationship between peak enhancement time (PET) and various parameters during CHD assessment with CCT.
Material And Methods: The study involved 38 CHD patients undergoing CCT, with observations made on their heart rate, respiratory rate, saturation, cardiac output, weight, height, and age.
Multi-level clustering and Prediction based energy efficient routing protocol to eliminate Hotspot problem in Wireless Sensor Networks.
Sci Rep
January 2025
Department of Computer Science & Engineering, Manipal Institute of Technology Bengaluru, Manipal Academy of Higher Education, Manipal, Karnataka, India.
Conserving energy of sensor nodes and ensuring balanced workloads among them are fundamental concerns in Wireless Sensor Network (WSN) design. Clustering strategies offer a promising avenue to minimize node energy consumption, thereby prolonging network lifespan. Nevertheless, numerous multi-hop routing protocols using clustering technique face the challenge of nodes nearer to the Base Station (BS) depleting their energy faster due to forwarding data from the entire network leading to premature node failure and network partitioning known as 'hotspot problem'.
View Article and Find Full Text PDFDynamic Monitoring of Organelle Interactions in Living Cells via Two-Color Digitally Enhanced Stimulated Emission Depletion Super-resolution Microscopy.
J Phys Chem Lett
January 2025
College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, State Key Laboratory of Radio Frequency Heterogeneous Integration (Shenzhen University), Shenzhen University, Shenzhen 518060, P. R. China.
One of the most significant advances in stimulated emission depletion (STED) super-resolution microscopy is its capacity for dynamic super-resolution imaging of living cells, including the long-term tracking of interactions between various cells or organelles. Consequently, the multicolor STED plays a pivotal role in biological research. Despite the emergence of numerous fluorescent probes characterized by low toxicity, high stability, high brightness, and exceptional specificity, enabling dynamic imaging of living cells with multicolor STED, practical implementation of multicolor STED for live-cell imaging is influenced by several factors.
View Article and Find Full Text PDFHigh-Performance CP Magneto-Electric Dipole Antenna Fed by Printed Ridge Gap Waveguide at Millimeter-Wave.
Sensors (Basel)
December 2024
Centre-Energie Materiaux et Telecommunications, Institut National de la Recherche Scientifique, Montreal, QC H5A 1K6, Canada.
This paper presents a high-performance circularly polarized (CP) magneto-electric (ME) dipole antenna optimized for wideband millimeter-wave (mm-wave) frequencies, specifically targeting advancements in 5G and 6G technologies. The CP antenna is excited through a transverse slot in a printed ridge gap waveguide (PRGW), which operates in a quasi-transverse electromagnetic (Q-TEM) mode. Fabricated on Rogers RT 3003 substrate, selected for its low-loss and cost-effective properties at high frequencies, the design significantly enhances both impedance and axial ratio (AR) bandwidths.
View Article and Find Full Text PDFRevolutionizing Free-Space Optics: A Survey of Enabling Technologies, Challenges, Trends, and Prospects of Beyond 5G Free-Space Optical (FSO) Communication Systems.
Sensors (Basel)
December 2024
Instituto de Telecomunicações, University of Aveiro, 3810-193 Aveiro, Portugal.
As the demand for high-speed, low-latency communication continues to grow, free-space optical (FSO) communication has gained prominence as a promising solution for supporting the next generation of wireless networks, especially in the context of the 5G and beyond era. It offers high-speed, low-latency data transmission over long distances without the need for a physical infrastructure. However, the deployment of FSO systems faces significant challenges, such as atmospheric turbulence, weather-induced signal degradation, and alignment issues, all of which can impair performance.
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