Articles tagged with Radar
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
Researchers estimated that around 100 trillion insects fly above the US every day using weather radar data. Insect populations remained relatively stable over the past decade, but regional fluctuations were observed, with warmer temperatures leading to declines in insect density.
Researchers estimate 100 trillion insects fly in US skies daily, with stability over past decade but regional fluctuations. Winter temperatures significantly impact insect populations, which may hide species sensitive to environmental change.
A new study uses radar technology to reveal crumbling dams across the US, threatening socially vulnerable communities. The research aims to create a country-wide database of unsafe dams, their flood risks, and impacted communities.
The 106th Annual Meeting of the American Meteorological Society will focus on the intersection of technology and human decision-making in weather, water, and climate sciences. The meeting will feature keynote presentations, Presidential Sessions, and named symposia highlighting key Earth science topics.
The University of Oklahoma will receive a $19.9 million award to develop the KaRVIR system, a groundbreaking dual-Doppler 3D mobile Ka-band imaging radar that will enhance atmospheric science research and provide critical insights into weather systems and wildfires.
A new algorithm, Geo-SETRA, reconstructs 3D models with denser and more accurate point clouds than traditional SAR techniques. It preserves fine architectural details while minimizing post-processing.
Research suggests that airport radar systems and military operations can inadvertently reveal our existence to potential advanced alien civilizations due to hidden electromagnetic leakage. Worldwide aviation hubs like Heathrow and Gatwick emit signals strong enough to be detected by telescopes up to 200 light-years away.
A new imaging technique developed by MIT researchers leverages reflections from wireless signals like Wi-Fi to create accurate 3D reconstructions of objects blocked from view. This approach achieved 96 percent reconstruction accuracy on everyday objects with complex shapes.
A dynamic spectrum and power allocation method, developed using a genetic algorithm, enables efficient sharing of frequencies between airborne pulse radar and communication systems. The method achieves up to a 22% improvement in radar detection probability while increasing the communication system's throughput.
The new system uses radar and reflective surfaces to monitor driver movements and determine their state of alertness. It has the advantage of being simple and cost-effective compared to conventional camera-based systems.
A new satellite developed by Chalmers University of Technology will help monitor and measure the world's forest biomass. The system enables precise measurements of forest carbon stocks, aiding efforts to combat climate change.
The proposed elimination of NOAA Research would drastically undercut the scientific backbone needed for accurate weather forecasts and services. Key stakeholders like the American Meteorological Society and National Weather Association urge action to maintain competitiveness in weather forecasting.
A new study by ProtectedSeas highlights the potential of marine radar technology to monitor vessel speed violations with 95% confidence. The research found that radar can detect speed violations with high accuracy, enabling effective enforcement of speed limits and prevention of strikes on whale populations.
A research team has identified a previously unknown defense mechanism in Pseudomonas syringae, enabling the bacterium to produce chemical compounds that attract amoebae, which are then killed by toxic substances produced by the bacteria. This 'chemical radar' system also helps the bacteria infect plants in the presence of predators.
Researchers at Brigham Young University have developed an air traffic control system for drones that can effectively track low-flying aircraft in congested airspace. The system uses a network of small radars to provide real-time location data and enable safe collision prevention.
ApoB100 protein structure revealed for the first time, allowing for more precise testing and treatment of high cholesterol and heart disease. The discovery may lead to new drugs targeting LDL particles, reducing side effects of statin drugs.
The study uses GPR and laser scanners to create a digital map of the Castle's sub-surface, revealing underground cavities and passageways. The technology provides a historical record and allows for immersive experience projects combining history and innovation.
Changzhi Li received the prestigious prize to advance next-generation biomedical radar without wearable devices. His portable sensors enable non-contact health care, human-computer interaction and security surveillance.
Researchers at DGIST developed a novel algorithm that analyzes envelope features of radar signals to improve target differentiation. This breakthrough technology enables nearly double the resolution without increasing bandwidth or requiring new hardware, enhancing object recognition precision in automotive and aerospace applications.
Scientists have used data from CryoSat-2 and ICESat-2 to track changes in the Greenland Ice Sheet's thickness, revealing an average thinning of 1.2 meters between 2010 and 2023. The study confirms that combining satellite measurements can produce a more reliable estimate of ice loss.
A new technology developed by researchers from UPV, BUPT, CAS Institute, Air Force Early Warning Academy and University of Ottawa improves the accuracy of radars and LiDAR systems by up to 14 times, enabling faster and more accurate navigation in autonomous vehicles and detailed environmental studies.
A new eavesdropping technology has been developed to intercept underwater messages from the air, posing significant security risks. The device uses radar to decode tiny vibrations on the water's surface, allowing for location identification and message interception.
The partnership aims to improve the speed and accuracy of flood damage assessments by combining multi-modal data sources and a novel vision language model. The system will enable first responders to quickly allocate resources and respond more efficiently to weather disasters.
The Open Radar Code Architecture (ORCA) offers scientists a standardized way to build ice-penetrating radar systems, reducing costs and increasing efficiency. This enables glaciologists to collect and reuse data more effectively, advancing research into melting ice sheets and sea-level rise.
Researchers found that light pollution disturbs moth behavior outside the illuminated area, causing them to fly in curvy paths. The study also revealed an interaction between artificial light and the moon's phase, affecting moths' orientation and flight patterns.
Researchers developed a method to reconstruct long-term backscatter coefficient data using Sentinel-1 and Landsat images. The technique accurately mapped changing building heights in Beijing and its surroundings over three decades, providing valuable insights into urban expansion and environmental issues.
Researchers at Duke University have broken through the performance wall of adaptive radar systems using convolutional neural networks, paralleling computer vision. They've released a large open-source dataset for other AI researchers to build upon their work, aiming to tackle industry needs like object detection and tracking.
Researchers analyzed Cassini radar experiment data to estimate the composition and roughness of Titan's sea surfaces, revealing differences in hydrocarbon seas' surface layers dependent on latitude and location. The study found higher dielectric constants in southern Kraken Mare and detected tidal currents near coastal areas.
A team of researchers from Japan has successfully developed a noninvasive method to measure heart rates in chimpanzees using millimeter-wave radar technology. The technique involves emitting high-frequency electromagnetic pulses at the chest of the animal, capturing echoes, and analyzing subtle body movements to estimate heart rate. Th...
Researchers at TU Wien have developed a theory to extract information from waves, allowing for precise measurements of objects in space. The theory reveals that the information content of a wave depends on its interaction with the object's properties, enabling customised waves to be generated for optimal information transfer.
Researchers at Cornell University found that small variations in layers of water ice can cause constructive interference between radar waves, producing bright reflections. This explanation accounts for the observed signals without requiring liquid water, casting doubt on potential microbial life on Mars.
Researchers have developed a radar analysis method to detect open water zones and other changes in Alaska's frozen rivers, providing current hazard maps for improved winter river safety. The approach is automated, applicable across the Arctic and sub-Arctic, and can be customized for any northern latitude rivers.
Researchers from the University of Houston used spaceborne-monitoring to detect movements and deformations in the Kakhovka Dam years before its collapse. The study highlights the importance of proactive monitoring and remote sensing in ensuring infrastructure safety and integrity.
Researchers develop AI-based system to track small metallic objects in Low Earth Orbit, outperforming classical detection methods. The system's high detection rate and low false alarm rates make it suitable for proactive decision-making and intervention strategies.
Researchers at Duke University create a system called MadRadar that can trick automotive radar sensors into believing anything is possible without prior knowledge. The technology can hide existing cars, create phantom vehicles, or make it seem like an actual car has changed course.
Researchers confirm ancient lake sediments at Jezero crater on Mars using radar imaging, revealing eons of environmental changes and potential signs of past life. The discovery supports the search for evidence of life in Perseverance rover's soil and rock samples.
The FengYun 3G (FY-3G) satellite is a groundbreaking tool for measuring global precipitation, offering high-resolution 3D renditions of falling precipitation. The satellite's data will aid in predicting extreme weather events and inform the development of future precipitation satellites.
Researchers at Ohio State University are testing the use of Synthetic Aperture Radar to help with wildfire detection and improve first responders' ability to predict and respond to deadly forest fires. The new tool has potential for tracking wildfires from start to finish, monitoring soil moisture, and discerning flame-prone areas.
Researchers have identified over 2.4 million hectares of land as critical stopover hotspots for migratory songbirds in the eastern United States, primarily consisting of deciduous forests. Protecting these sites is essential to safeguarding bird populations, which have plummeted by a quarter since 1970 due to habitat loss and climate c...
Research reveals that an average of 1,000 times more birds are in the air close to fireworks on New Year's Eve, with effects strongest within the first 5 km. Larger birds like geese and ducks fly for hours at remarkable altitudes, risking accidents.
A study found that artificial light is a top indicator of where birds will land, leading to ecological traps and collisions. Urban parks can provide decent stopover sites, but competition over limited resources poses a significant risk to migrating birds.
Researchers have developed an integrated THz vortex beam emitter to detect rotating targets with remarkable precision. The system uses spiraling electromagnetic waves with orbital angular momentum to accurately measure the speed of a rotating object, with a maximum margin of error of just around 2 percent.
The development of a new photonic technique enables the precise control of photonic angular momentum, allowing for the efficient recognition and real-time control of total angular momentum modes. The technique, which involves the symmetrical cascading of two units, has been experimentally demonstrated to recognize up to 42 individual T...
Researchers from Simon Fraser University and Brigham Young University have developed a new radar technology that significantly improves the detection of polar bear dens in the Arctic. The technology, using Synthetic Aperture Radar (SAR), has been shown to increase den detection by over 66% compared to current industry standards.
Researchers developed a proof-of-concept sensor that detects vibrations and changes in target position with high accuracy, using an innovative design to cancel out noise. The sensor's compact size, low cost, and long battery life make it suitable for various applications, including plant water status tracking and structural integrity d...
A new LSU-led project will install up to eight high-frequency radar systems along the Louisiana coastline, providing near-real-time monitoring of ocean surface currents. The system will contribute data to NOAA's Integrated Ocean Observing System, enhancing marine forecasts and safety in coastal waters.
Scientists have analyzed satellite data to better understand the pre-monsoon season's microphysical features, including larger rain droplets and more heavy ice precipitation on land. Their findings could improve weather prediction and mitigate damage from adverse climate events.
A new study using Marine Monitor highlights the need for systems that can track boater activity in small, coastal MPAs. The findings show that traditional vessel tracking systems can miss up to 93% of boater activity at highly urban MPAs.
Scientists have developed a new radar technique that can image hidden features within the upper few feet of ice sheets, including melting glaciers on Earth and potentially habitable environments on Jupiter's moon Europa. The technique boosts resolution by combining two different radar bandwidths and looking for discrepancies.
A team from the Second Tibetan Plateau Scientific Expedition and Research (STEP) has made a significant contribution to understanding Mount Qomolangma's mean snow depth. They used a novel approach to ground-penetrating radar technology, resulting in a snow depth of 9.5 ± 1.2 meters at the summit.
A research group led by Kyoto University collected data on gamma-ray glows from thunderstorms, which may help explain the origins of lightning. The team proposes that high-energy particles from space could trigger lightning discharges.
Researchers from Chalmers University of Technology have developed a high-frequency radar technique to measure the flow of solids in fluidized beds with unrivalled precision. This breakthrough could lead to more efficient processes in energy conversion, carbon capture, and other industries.
Researchers at the University of Sydney have developed a photonic radar system that can accurately detect pauses in breathing patterns remotely. The system has been tested on cane toads and simulated human breathing devices, demonstrating its potential for non-invasive vital sign monitoring in clinical environments.
A team led by Virginia Tech's Manoochehr Shirzaei has developed high-resolution digital maps to monitor land subsidence and sea-level rise, revealing vulnerable areas along the Atlantic East Coast. The data supports flood risk management and informs climate change projections, helping to refine models for hurricanes and storms.
Researchers have developed a new method to monitor shore ice using portable interferometric radar, which can detect small changes in the ice's distance and reveal signs of instability. This system can provide an early warning for humans working on shorefast sea ice and also aid in near-coastal navigation.
Researchers attribute unusual radar properties to coherent backscatter opposition effect (CBOE) and ice surface irregularities. The CBOE model, improved by Hofgartner and Hand, can explain all icy satellite radar properties.
Researchers used a 3D radar scan to reveal that Malaspina Glacier is undercut by channels, making it more vulnerable to melting and potentially contributing significantly to global sea level rise. The glacier's bulk sits below sea level, and its coastal barrier erodes, allowing ocean water to access the glacier and accelerate its retreat.
Researchers from USTC developed a novel method combining micro/nano resolution with deep sub-wavelength localization to achieve quantum-enhanced position measurement accuracy of 10^-4 wavelengths. This breakthrough technology enables high-precision microwave positioning, surpassing traditional radar systems.
Researchers have found that honeybees use linear landscape elements, such as irrigation channels, to guide their search flights when looking for their hive in new areas. The bees retain a navigational memory of their home area based on these elements, which they generalize to the new area to find their way home.
Researchers at Chalmers University of Technology developed a method to predict fall accidents and cognitive illnesses like Alzheimer's disease using radar sensors that track walking patterns. The technology can help healthcare staff make more reliable risk assessments and tailor interventions for improved patient outcomes.