Articles tagged with Microwave Radiation
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A new study shows that microwave-assisted pyrolysis can convert sugarcane bagasse into highly porous biochar with exceptional surface properties. The process produces biochar with a surface area exceeding 1,150 square meters per gram, making it suitable for applications such as pollutant adsorption and energy storage.
A new review reveals microwave-assisted pyrolysis can produce advanced carbon materials from biomass and waste in a fraction of the time, with improved performance and sustainability. This technology offers a powerful alternative for building next-generation materials needed for carbon neutrality.
Researchers from the University of Tokyo developed a method to use microwaves to heat specific areas in industrial processes, reducing energy costs and improving selectivity in chemical reactions. This technique has the potential to optimize catalyst design, improve durability, and scalability for eco-friendly industrial processes.
This study introduces a novel method of synthesizing nitrogen-doped carbon dots using microwave technology from biomass, providing a green and effective approach to metal ion detection. The research offers a clear path to more efficient and environmentally friendly metal ion sensing.
This study uses Steady-State Isotopic Transient Kinetic Analysis to investigate the effects of microwave heating on Dry Reforming of Methane. The results show that microwave activation induces the formation of reactive coke, enhancing the reaction rate and reducing surface intermediate concentrations.
LyoWave, a company commercializing microwave heating technologies developed at Purdue University, has received a $304k NSF SBIR grant to scale its tech for pharmaceutical and biologics manufacturing. The project aims to increase manufacturing throughput and reduce costs.
Researchers have discovered how to tune electromagnetic pulse intensity by adjusting laser energy and gas jet pressure, enabling controlled EMP applications. The study identified four primary sources of EMPs and found a correlation between EMP intensity and electron acceleration.
Researchers have developed a non-invasive method to visualize the internal details of the mouse cochlea with micron-level spatial resolution using terahertz imaging. This technique has the potential to lead to a new diagnostic method for ear diseases and enable on-site diagnosis of hearing impairments.
Researchers have created a superconducting Josephson probe microscope that combines high sensitivity, resolution, and low bias magnetic fields. The device enables spatial-resolved microwave imaging with sub-micrometer resolution, making it suitable for applications in quantum computing, magnonics, and high-frequency electronics.
The device enables precise control over terahertz wave polarization, revolutionizing applications such as data transmission, imaging, and sensing. This innovation promises to transform fields like wireless communication and biomedical imaging.
The CLAP platform combines active and passive microwave signals to simulate soil moisture and vegetation conditions. Advanced interaction models for soil and vegetation enable more accurate simulations, addressing limitations in existing remote sensing technologies.
Scientists at the University of Groningen have created a novel microwave-assisted chemical recycling process for aramid fibers, including Twaron and Kevlar. The new method achieves a high conversion rate of 96% in just 15 minutes, without using organic solvents.
The CLAP platform combines active and passive microwave signals to simulate soil moisture and vegetation conditions, improving land monitoring precision. It accurately reflects dynamic changes in vegetation and soil properties, addressing key limitations in existing technologies.
Researchers have proposed a transformative, battery-less wireless sensing system to overcome IoT network deployment and power supply challenges. The bio-inspired system combines exceptional reliability with flexibility, addressing key limitations of traditional rigid wireless systems.
Researchers at TU Wien and ISTA have developed artificial atoms made of superconducting circuits that can be tuned to specific energy values. These 'artificial atoms' enable the storage and retrieval of light, opening up new possibilities for quantum experiments.
A POSTECH research team developed a novel multidimensional sampling theory to overcome limitations of flat optics. Their study identifies constraints of conventional sampling theories and presents an innovative anti-aliasing strategy, significantly enhancing optical performance.
Dale Gary, a distinguished professor of physics at NJIT's Center for Solar-Terrestrial Research, has been named an American Astronomical Society Fellow. He is recognized for his national and international leadership in solar radio engineering and physics, advancing our understanding of solar energetic processes.
Researchers at Pohang University of Science & Technology have developed a technology that uses microwaves to produce clean hydrogen in minutes, overcoming limitations of existing methods. By leveraging microwave energy, the team achieved significant breakthroughs in reducing production temperatures and time.
Kyushu University researchers create a microwave flow reaction device that converts complex polysaccharides into simple monosaccharides, producing glucose. The device utilizes a continuous-flow hydrolysis process, where cellobiose is passed through a sulfonated carbon catalyst heated using microwaves.
Researchers demonstrate how grape pairs can create strong localized magnetic field hotspots of microwaves used in quantum sensing applications. The study could help develop more compact and cost-effective quantum devices.
Researchers develop efficient way to recycle e-waste containing metals, semiconductors and rare elements; microwave-assisted pyrolysis method effectively recovers copper wires, improving recycling process.
A new microwave-assisted synthesis route has improved the performance of a coordination polymer photocatalyst, achieving a record-breaking value for CO2-to-formate conversion with a nearly ten-fold increase in apparent quantum yield. The improvements are attributed to well-crystallized material and surface area increases.
Researchers at WVU have developed microwave technology to recover propylene from polypropylene waste, which can be reused in new plastics or products. The process uses precise control and lower temperatures than traditional methods, offering energy efficiency and reduced emissions.
Researchers create flexible, lightweight, and durable antennas using kirigami and MXene nanomaterials. The antennas can be adjusted to change transmission frequency by simply pulling or squeezing the shape, making them ideal for soft robotics and aerospace applications.
A team from Kyushu University has developed a zeolite catalyst that can be heated using microwaves to speed up the conversion of fatty acid esters to olefins. This process improves energy efficiency and reduces carbon dioxide production, offering a more sustainable chemical industry.
The multispectral smart window technology regulates visible light while blocking microwave signals, improving energy savings and privacy protection. It outperforms existing technologies in response time, transmittance adjustment range, haze adjustment range, driving voltage, and optical modulation mode.
A study found that microwaves contain a unique microbial community, comprising 747 different genera, which resembles those on solar panels and kitchen surfaces. The diversity of the microbiome varies between single-household kitchens, shared domestic spaces, and laboratory microwaves.
The NYU Abu Dhabi team has developed a new type of dual-faced membrane that effectively purifies water from contaminants and boasts strong antibacterial properties. The microwave-mediated synthesis method allows precise control over the membrane's properties, enabling efficient removal of pollutants.
A new process by Rice University researchers recovers up to 50% of lithium in spent LIB cathodes in just 30 seconds, overcoming a significant bottleneck in LIB recycling technology. The microwave-based method uses a readily biodegradable solvent and achieves efficiencies similar to conventional heating methods but much faster.
Physicists and engineers are exploring magnetrons as drivers of high-performance particle accelerators to reduce their carbon footprint and enable future industrial applications. Magnetrons, originally designed for microwave ovens, have the potential to lower production costs and improve efficiency in various industries.
Researchers developed a one-dimensional convolutional neural network (1D CNN) to compensate for errors due to sample location variations. The model achieved high accuracy, reducing mean absolute error to 0.695% and mean squared error to 0.876%.
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.
The research develops composite microspheres with a hollow structure, enhancing microwave absorption performance and stability in extreme environments. The results show that SiC/C composite materials demonstrate outstanding wave absorption and radar stealth performance, unaffected by temperature and environmental conditions.
Researchers at Columbia University have successfully created a unique quantum state of matter called a Bose-Einstein Condensate (BEC) out of molecules. The breakthrough, achieved by cooling sodium-cesium molecules to just five nanoKelvin, has the potential to advance powerful quantum simulations and unlock new areas of research.
LyoWave is commercializing microwave heating technologies developed at Purdue University, improving speed, cost-effectiveness, and product throughput. The company has entered a collaboration with Millrock Technology, applying its technology to boost freeze-drying systems' capacity for pharmaceuticals and diagnostic reagents.
Brown University researchers unveil novel method to manipulate terahertz waves, allowing them to curve around obstacles instead of being blocked. The technique uses self-accelerating beams to maintain signal integrity in crowded environments.
A 10-center study found that microwave ablation is associated with similar progression-free survival rates to surgery but with fewer complications and a greater potential for preserving thyroid function. The procedure resulted in less blood loss, shorter incision length, and shorter procedure and hospitalization durations.
Researchers at WVU are developing solid oxide electrolysis cells (SOECs) to split water into hydrogen and oxygen, with the goal of cutting production costs to $1 per kilogram. The projects focus on improving SOEC design and manufacturing processes to increase efficiency and reduce energy consumption.
Researchers have developed an all-optical device on a tiny photonic chip that generates high-quality, ultra-low-noise microwave signals using a single laser. The compact device has the lowest microwave noise ever observed in an integrated photonics platform.
Researchers at NIST have developed compact chips that convert light into microwaves with reduced timing jitter, improving GPS accuracy, phone connections, radar systems and astronomical images. This technology has the potential to increase radar sensitivity, improve analog-to-digital converters and enhance the clarity of images.
A research team from City University of Hong Kong has developed a world-leading microwave photonic chip capable of performing ultrafast analog electronic signal processing. The chip, 1,000 times faster and consuming less energy than traditional processors, has wide applications in 5/6G wireless communication, AI, and computer vision.
Researchers at WVU have developed a microwave technology that can significantly reduce industry's energy consumption and carbon emissions. The technology, which uses microwaves to carry out chemical reactions, has the potential to produce ethylene and ammonia in a single reactor, leading to increased efficiency and lower emissions.
Drexel University researchers develop a lightweight alternative to metal components in satellites by coating 3D-printed polymers with MXene, a conductive nanomaterial. The MXene-coated waveguides weigh up to eight times less than traditional aluminum ones and maintain nearly 95% transmission efficiency.
Researchers observed molecular gas outflow from quasar J2054-0005 using ALMA, revealing suppression of star formation in its host galaxy. The findings confirm theoretical predictions and provide strong evidence for powerful molecular gas outflows in early Universe quasars.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf have developed tiny electromagnets made of ultra-thin carbon, graphene, using terahertz pulses. The graphene discs briefly turned into strong magnets, with magnetic fields in the range of 0.5 Tesla, and showed promise for developing future magnetic switches and storage devices.
The Telescope Array has detected the second-highest energy cosmic ray ever observed, with an energy equivalent to dropping a brick on your toe from waist height. The Amaterasu particle deepens the mystery of ultra-high-energy cosmic rays, which may follow particle physics unknown to science.
Researchers have successfully excited a scandium-45 nuclear isomer using X-ray pulses, paving the way for the creation of the world's most precise clock. The breakthrough has significant implications for fields such as nuclear physics, satellite navigation, and telecommunications.
Scientists at the University of Warsaw have developed a device that can convert quantum information between microwave and optical photons, enabling a crucial part of quantum network infrastructure. This breakthrough could lead to advancements in quantum computing, radio-astronomy, and high-speed internet connections.
Scientists have developed a nonrelativistic and nonmagnetic mechanism for generating terahertz waves, harnessing the electrical anisotropy of two conductive oxides. This approach produces signals comparable to commercial terahertz sources and offers a high terahertz conversion efficiency.
Exposure to plastic particles from microwaved baby food containers can be deadly, with up to 75% of cultured kidney cells dying after two days. The University of Nebraska-Lincoln study found that polypropylene containers release 1,000 times more nanoplastics than microplastics.
Lancaster University researchers have developed a novel scanning thermal microscopy approach to directly measure the heat conductivity of two-dimensional materials. This breakthrough enables the creation of efficient waste heat scavengers generating cheap electricity, new compact fridges, and advanced optical and microwave sensors and ...
Researchers have developed a soft film that can regulate its transparency across visible, infrared, and microwave wavelengths simultaneously. The material's ability to modify its transparency rapidly could benefit dynamic camouflage technologies and adaptive personal devices.
A new microcomb device developed by researchers at the University of Rochester offers a promising approach to generating stable microwave signals. The device's high-speed tunability enables applications in wireless communication, imaging, atomic clocks, and more.
The Chang'e project has successfully mapped the Moon's surface, composition and inner workings, providing new insights into its evolution and potential resources. Future research aims to unlock the secrets of water ice and lunar material composition.
Researchers at Aalto University create a new bolometer that can accurately measure microwave power down to the femtowatt level at ultra-low temperatures. This breakthrough device has the potential to significantly advance quantum computing and technology, enabling more precise control over qubits and improving overall performance.
Entangling low-energy microwave with high-energy optical photons is a crucial step to overcome challenges in scaling up existing quantum hardware. The achievement has implications for realizing interconnects to other quantum computing platforms and novel quantum-enhanced remote sensing applications.
A team of scientists has found a way to directly manipulate the spin of electrons in 2D materials like graphene, a long-standing challenge. They used a novel experimental technique to study the properties of how electrons spin in these materials.
Researchers from HKUST and CityU developed a metasurface to generate time-varying OAM beams with a time-dependent phase profile. This allows for a higher-order twist in the envelope wavefront structure, increasing capacity for applications such as dynamic particle trapping and information encryption.
Researchers at Macquarie University have developed a microwave technology that improves solar cell production by reducing energy consumption and increasing efficiency. The new method allows for selective heating of silicon, making it easier to recycle and reuse components.
A new type of photonic time crystal has been developed, showing that these artificial materials can amplify electromagnetic waves. This could lead to more efficient wireless communications and improved lasers., The creation of two-dimensional photonic time crystals makes them easier to fabricate and experiment with.