Articles tagged with Microwave Radiation
Researchers at the University of Montpellier develop a clean conversion process for fused bicycles into spirocycles using activated 2,5-diketopiperazines as starting materials. The method demonstrates the versatility of ring contraction reactions and has potential applications in various fields.
A new integrated photonics platform enables precise control of light frequency and storage, opening doors for photonic quantum information processing, optical signal processing, and microwave photonics. The technology uses lithium niobate and has potential applications in radio astronomy, radar technology, and more.
Researchers found that cooking spinach for short times minimizes lutein loss, while microwaving partially compensates. Adding fat to spinach releases more lutein, making smoothies a best way to consume it.
Tropical Cyclone Kenanga strengthened into a tropical storm over the Southern Indian Ocean, with rainfall rates reaching up to 119 mm/h. NASA's Aqua and GPM satellites captured detailed data on rainfall, temperature, and storm structure.
The new modulator enables efficient and low-cost high-frequency microwaves transmission, covering the last mile with high data rates, and is compatible with 5G technology and future industry standards.
Researchers successfully employed microwaves to suppress Alfvén waves in plasmas, a crucial step towards harnessing clean and nearly limitless energy through fusion. The study, conducted at the DIII-D National Fusion Facility and ASDEX-Upgrade facility, demonstrates the potential of using electron cyclotron waves to control wave activity.
Scientists at ITMO University and Lebedev Physical Institute create a microwave antenna that creates a uniform magnetic field in large volume, enabling super-sensitive magnetic field detectors. The device uses nanodiamonds with defects to achieve coherent control of electronic spins, improving magnetometer sensitivity.
Researchers have developed a non-invasive method to detect metallic stents and their potential structural failures through microwave spectrometry. The technique showed promise in detecting stent fractures and restenosis, highlighting the potential for new approaches to cardiovascular disease treatment.
A new study reveals that terahertz data links are not as secure as previously thought, and can be intercepted by clever eavesdroppers. Researchers found ways to steal signals without being detected, even with directional beams, by using objects like metal plates or cylinders to scatter the signal.
Researchers have successfully observed and studied the ionization-induced self-channeling of a microwave beam in a neutral gas. This effect enables the microwave to propagate a longer distance, potentially leading to military applications as a directed-energy weapon.
Tropical Storm Kong-Rey experienced extreme rainfall rates near its center, with rain falling at over 1.8 inches per hour in two areas northwest of the storm's center. The storm is weakening and expected to transition into the Sea of Japan, taking a turn toward the northeast.
Researchers synthesized PANI/Zn ferrite composites, showing excellent microwave absorption performance. The fluffy structure and dielectric loss capabilities contribute to the attenuation of microwave energy, making this composite a good microwave absorber.
Researchers create device that reduces energy needed for magnetic field detectors, enabling applications in navigation, medical imaging, and natural resource exploration. The technology uses nitrogen-infused diamonds to detect magnetic fields with lower power consumption.
Tropical Storm Florence is experiencing temporary wind shear, causing cloud top temperatures to warm, but forecasters predict it will restrengthen into a hurricane over the weekend. Large swells are expected to affect the US East Coast and Bermuda, resulting in life-threatening surf and rip currents.
The new tool developed at UPNA enables accurate estimates of radio propagation in interior environments, facilitating optimal deployment of wireless devices. This is crucial for optimizing data transmission speed, equipment energy consumption, and cost of deployment with the increasing number of wireless devices expected by 2020.
Typhoon Soulik's cloud top temperatures were observed by NASA's Aqua satellite, revealing a 50 nautical-mile wide eye with very strong thunderstorms surrounding it. The storm is tracking northwestward at 15 mph and is expected to slowly weaken before making landfall near Seoul, South Korea.
Lehigh University engineers aim to develop a lab-on-a-chip method for cancer screening using microwave technology to analyze single cell nuclei. The team uses microfluidic devices to capture and release cells, then applies high-frequency microwave energy to sense internal details.
Researchers at Yokohama National University have demonstrated fault-tolerant universal holonomic quantum gates, paving the way for fast and reliable quantum computing. The team achieved this breakthrough by manipulating a geometric spin qubit in an NV center, enabling precise control over long-lived quantum memories.
Heavy rainfall caused flash floods and power outages in Virginia and Texas, while NASA's IMERG program estimated rainfall totals of over 8 inches in some areas. The analysis was based on satellite data from the GPM mission and used algorithms developed by NASA's PMM science team.
A team of scientists at ETH Zurich have found a way to avoid disturbances in qubit operations by coupling a microwave photon to a spin qubit. The researchers created a 'spin trio' consisting of three quantum dots and demonstrated strong coupling between the spin qubits and a microwave photon.
Tropical Storm Jongdari strengthened into a tropical storm on July 24 with more organized bands of thunderstorms and deep convective banding. The storm is forecast to make landfall just south of Tokyo on July 28, moving in a northerly direction.
Researchers at the University of Colorado Boulder and NIST have developed a device that converts microwave energy into laser light, crucial for sending quantum signals. The team's innovation could one day enable huge networks of quantum computers to communicate efficiently.
A new study presents a strategy for FY-3 microwave humidity sounders and radiation imager assimilation in the Met Office NWP model, significantly improving forecast error reduction. Operational monitoring allows rapid detection of data anomalies, which are fed back to China Meteorological Administration for investigation and remedy.
A study by University of Seville researchers found that deep-freezing orange juice can increase the absorption of carotenoids, including phytoene and phytofluene. Freshly squeezed orange juice, however, had a higher concentration but lower bioaccessibility of these compounds.
Astronomers identify hydrogenated nanodiamonds as likely source of anomalous microwave emission (AME), a type of faint microwave light emanating from regions across the Milky Way. The discovery provides new insights into the formation of nanodiamonds in protoplanetary disks and has implications for cosmology research.
A team of researchers at Cardiff University has discovered that tiny crystals of carbon, nanodiamonds, are likely the source of a mysterious microwave glow emanating from star systems in the Milky Way. The discovery was made by studying infrared light from protoplanetary disks surrounding newly formed stars.
Using powerful supercomputers, researchers have found a way to generate high-frequency microwaves with affordable silicon, cutting costs and improving devices such as sensors in self-driving vehicles. This innovation could lead to cheaper, more flexible microwave technology.
Researchers at Harvard have discovered a new phenomenon in quantum cascade laser frequency combs, enabling devices to act as integrated transmitters or receivers for efficient information encoding. This breakthrough has the potential to increase Wi-Fi capacity and pave the way for faster data transfer rates.
Scientists at NIST and partners developed a miniaturized device that generates precise frequencies of light, tracing back to an international measurement standard. The breakthrough reduces the size of optical frequency synthesizers from tabletop instruments to three silicon chips.
Researchers at OIST Graduate University discovered that polarization affects the motion of electrons in a two-dimensional system. By inducing rotation in both electrons and microwave fields, the team observed oscillations in electron current, indicating that electrons are indeed affected by polarization.
Researchers at Imperial College London have developed a new maser that operates continuously at room temperature, leveraging synthetic diamond to achieve this feat. The discovery has significant implications for various fields, including medical imaging, airport security scanning, and deep space communication.
Tropical Cyclone Eliakim caused severe flooding and landslides in eastern Madagascar with over 300 mm of rain, resulting in at least seven deaths. The storm's slow movement over the island nation led to continuous heavy rainfall.
Quadrupole topological insulators are a new phase of electronic matter with unusual properties. The researchers created a workable-scale analogue of QTI using printed circuit boards and measured how much microwave radiation was absorbed by each resonator.
NASA's GPM core satellite detected towering thunderstorms southeast of Tropical Cyclone Linda's center, producing heavy rainfall at rates exceeding 7.1 inches per hour. The storm's convective activity is decreasing due to dry air moving into the system and increasing vertical wind shear.
Researchers used ALMA to directly observe the rotation of a compact gaseous structure around a supermassive black hole in galaxy M77. The team found that the structure, called a torus, has an asymmetry and contains random motion, suggesting a possible violent history.
Brown University researchers demonstrate that terahertz frequency data links can maintain acceptable bit-error-rates after bouncing off objects, enabling the possibility of non-line-of-sight links. The study's findings support the idea of terahertz local-area networks and could pave the way for future wireless networks with increased b...
Researchers in Australia have developed a novel platform for light-matter interaction in fiber optics, opening up new horizons for communication and photonics technology. The system uses terahertz radiation with higher bandwidth capacity than current microwave networks.
Scientists have successfully achieved strong coupling between distant phonon modes of graphene-based mechanical resonators using a phonon cavity mode. By tuning the resonant frequency of the phonon cavity mode, they can continuously tune the coupling strength between distant phonon modes.
A new architecture miniaturizes atomic clocks using piezoelectric thin film vibration, achieving 30% reduction in chip area and 50% reduction in power consumption. The technology enables high-end frequency standards to be incorporated into wireless devices like smartphones.
A new study by the University of Manchester reveals that microwaves emit significant amounts of carbon dioxide equivalent to 6.8 million cars annually in the EU. The research also found that microwaves consume substantial electricity, equivalent to three large gas power plants, and contributes to resource depletion and climate change.
Tropical cyclone Ava caused extreme flooding and landslides in Madagascar, resulting in at least 29 deaths. NASA's IMERG analysis estimated near-700mm of rainfall in the Indian Ocean northeast of Madagascar, with highest totals on land in northeastern regions.
Researchers have devised a method to scan walls without prior knowledge of their material composition, exploiting symmetry for effective resolution. This approach enables inexpensive devices to locate conduits, pipes, and wires in construction, with potential applications in security and industry.
Researchers Anthony Nash and Lauren von Blohn investigated the acoustic properties of exploding eggs in a microwave oven. They discovered that the yolk's temperature is consistently higher than the surrounding water bath, leading to superheated pockets that cause a chain reaction resulting in an explosion-like phenomenon.
Researchers at NIST develop a new approach to testing multilayered, three-dimensional computer chips using microwaves. This method provides real-time insight into material performance and defects, potentially reducing electromigration issues and improving chip stability.
Researchers analyzed over 60 years of solar microwave data and found consistent microwave intensities and spectra at the minimums of each cycle, contrasting with varying intensity and spectrum during periods of maximum solar activity. This discovery sheds light on understanding the creation and amplification of solar magnetic fields.
A novel microwave-assisted iodine-catalyzed rapid synthesis of 6H-indolo[2,3-b]quinolines has been developed. The method produces significant types of indoloquinoline alkaloids with high yields and lower energy consumption compared to traditional methods.
Researchers developed a mathematical model of microwave communication for 5G networks, addressing signal attenuation and radio resource allocation. The study aims to enable gigabit-rate transmission via millimeter wave channels in urban environments.
Researchers at EPFL and University of Cambridge create device harnessing microscopic drum motion to convert signals between two circuits. The system enables dynamic reconfiguration of the isolator's direction, promising a new platform for building microwave devices without magnetic fields.
Researchers at the University of Illinois are using satellite data to estimate crop yield in the US Corn Belt. By integrating various spectral bands and analyzing them together, they've uncovered valuable information on crop biomass and environmental stresses related to drought and heat.
Typhoon Banyan's eye became visible again in satellite imagery from NASA-NOAA's Suomi NPP satellite, showing a tight concentration of strong thunderstorms around its center. The storm is expected to become a strong extra-tropical storm in the open waters of the Northwestern Pacific Ocean by August 17.
Tropical Storm Jova formed on August 11, but just two days later, it was being torn apart by strong vertical wind shear. The storm weakened into a post-tropical cyclone by August 14, with maximum sustained winds near 35 mph and an estimated minimum central pressure of 1005 millibars.
Typhoon Banyan formed from Tropical Depression 14W and maintained its status with maximum sustained winds near 80 knots. The storm is forecast to intensify and turn north-northeast before becoming extratropical.
The new sensor array-based instrument uses superconducting quantum interference to detect small amounts of energy with improved sensitivity and bandwidth. This advancement enables accurate tracking of nuclear materials, such as plutonium isotopes, and improves astronomical studies of cosmic microwave background radiation.
Researchers demonstrate method for multiplexing data carried on terahertz waves, transmitting two real-time video signals at an aggregate data rate of 50 gigabits per second. The terahertz multiplexer uses a waveguide with metal plates to separate data streams based on frequency and angle.
NASA's GOES-West satellite captured an infrared image of Tropical Storm Irwin on July 24, revealing a better-organized tropical cyclone. The storm is expected to become a hurricane within the next 48 hours.
A Texas A&M University doctoral student has pioneered a method to strengthen 3-D printed parts, making them suitable for real-world applications. The technology uses microwave energy to weld layers together, creating more durable parts.
Researchers used microwave spectroscopy to analyze the structure of a single molecular motor, revealing its stator, rotor, and axle. The study provides insight into the motor's dynamics and opens up possibilities for studying nano-machines in action.
Researchers have developed a quantum probe to perform microwave-free NMR at the nanoscale, overcoming limitations of conventional methods. This technique enables non-invasive detection of nuclear spins in smaller volumes, potentially revolutionizing biotechnology and materials science.
American scientists have developed a new method to measure electric fields using atomic resonance-based technology, allowing for accurate and traceable measurements. This technique has improved spatial resolution and can measure frequencies up to one terahertz, relevant for future wireless mobile telecommunication systems.
Researchers in Singapore used computer simulations to study skyrmion particles, gaining insights into their internal behaviors. The study found that the three fundamental modes of skyrmions respond differently to external magnetic fields, potentially leading to new microwave nano-oscillators and ultra-compact devices.