Breakthrough MEMS Huygens clock improves timekeeping precision and stability
The new MEMS Huygens clock offers improved precision and stability, with Allan deviation improving by a factor of 3.73 at 1 second and 1.6343 × 10^5 times at 6000 seconds.
Electrical Engineering
Articles tagged with Electrical Engineering
Looking for a new battery platform? Focus on the essentials!
Researchers developed a novel air-handleable garnet-type solid electrolyte technology that improves surface and internal properties, preventing contamination layer formation. This innovation enables the creation of ultra-thin lithium solid-state batteries with high energy density and low weight.
SourcePohang University of Science & Technology (POSTECH)·JournalACS Energy Letters·DateJun 11, 2024
NTU Singapore showcases final test model of Singapore’s latest satellite to President Tharman Shanmugaratnam
The ELITE satellite, scheduled for completion by 2025, will validate new satellite technologies and study unique conditions of Very Low Earth Orbit (VLEO) and the Earth's surface. The satellite is equipped with a special electric propulsion system and will operate in VLEO, a relatively unexplored region of space.
Advanced AI-based techniques scale-up solving complex combinatorial optimization problems
Researchers developed HypOp, a framework using unsupervised learning and hypergraph neural networks to solve combinatorial optimization problems significantly faster. The framework can also tackle certain problems that prior methods cannot effectively solve.
SourceUniversity of California - San Diego·JournalNature Machine Intelligence·TypeComputational simulation/modeling·DateJun 10, 2024
Innovative, self-sufficient, eco-friendly: EU sponsors new microelectronics project
The EU's Pathfinder program supports the development of innovative, exploratory technologies with major potential impact. Researchers aim to design concepts for sustainable, resilient microelectronic devices using readily available materials.
Development of revolutionary color-tunable photonic devices
A team at Pohang University of Science & Technology has developed a novel stretchable photonic device that can control light wavelengths in all directions. The device leverages structural colors produced through the interaction of light with microscopic nanostructures, allowing for vivid and diverse color displays.
SourcePohang University of Science & Technology (POSTECH)·JournalLight Science & Applications·DateJun 3, 2024
Polymeric films protect anodes from sulfide solid electrolytes!
Researchers developed polymeric protective films to improve anode interface stability in sulfide-based all-solid-state batteries. The films, made from various polymers, showed improved interfacial stability and high-capacity retention rates after multiple cycles.
SourcePohang University of Science & Technology (POSTECH)·JournalAdvanced Functional Materials·DateMay 28, 2024
“The magic of making electricity from metals and air” The vexing carbonate has achieved it!
Researchers from Pohang University of Science & Technology have developed a high-energy, high-efficiency all-solid-state sodium-air battery that can reversibly utilize sodium and air without additional equipment. The breakthrough overcomes the challenge of carbonate formation, increasing energy density and reducing voltage gap.
SourcePohang University of Science & Technology (POSTECH)·JournalNature Communications·DateMay 28, 2024
To 6G and beyond: Penn engineers unlock the next generation of wireless communications
Researchers at Penn Engineering have developed an adjustable filter that can prevent interference and enable the use of higher-frequency bands in wireless communications. The filter, made from a unique material called yttrium iron garnet, is tiny and requires minimal power, making it suitable for future mobile devices.
SourceUniversity of Pennsylvania School of Engineering and Applied Science·JournalNature Communications·TypeExperimental study·DateMay 24, 2024
New milestone for lithium metal batteries
Researchers at Pohang University of Science & Technology developed a hybrid porous structure using polyvinyl alcohol, enabling uniform lithium electrodeposition. The new design facilitated the transport of lithium ions, reducing 'dead Li' areas and internal short circuits, resulting in high stability after 200 charge-discharge cycles.
Renewable grid: Recovering electricity from heat storage hits 44% efficiency
Researchers at the University of Michigan have developed a new thermophotovoltaic cell that can recover significantly more energy from heat batteries, increasing efficiency to 44%. The device uses air bridges to trap photons with the right energies, allowing for the recycling of useless photons and improving overall performance.
Streamlined microcomb design provides control with the flip of a switch
Researchers at the University of Rochester developed a new microcomb laser design that provides low power efficiency, high tunability, and easy operation. The simplified approach enables direct control over the comb with a single switch, opening up potential applications in telecommunications systems, LiDAR for autonomous vehicles.
AI chips could get a sense of time
Researchers at the University of Michigan have created a new type of memristor that can mimic the timekeeping mechanism found in biological neural networks. This breakthrough could lead to significant energy savings for AI chips, potentially reducing energy consumption by a factor of 90 compared to current graphical processing units.
Hide and seek between atoms. Find the dopant!
The team developed a deep learning AI technique to quantitatively analyze cation mixing using atomic structure images. This approach revealed that introducing metal dopants like aluminum, titanium, and zirconium into the transition metal layer fortified bonds between nickel and oxygen atoms, curbing cation mixing.
SourcePohang University of Science & Technology (POSTECH)·JournalChemical Engineering Journal·DateMay 12, 2024
AI and holography bring 3D augmented reality to regular glasses
Engineers at Stanford University have developed a prototype augmented reality headset that uses holographic imaging to overlay full-color, 3D moving images on the lenses of regular glasses. The new approach delivers a visually satisfying 3D viewing experience in a compact and comfortable form factor suitable for all-day wear.
Photocrosslinking, not Ojak bridge, facilitates transistor functionality
A team from Pohang University of Science & Technology has developed a memory transistor that can adjust its threshold voltage through photocrosslinking. The innovation combines two molecules with a polymeric semiconductor to form a stable bond, enabling precise control of the semiconductor layer's structure.
An important step forward in the future of self-health monitoring
Researchers at the University of Missouri have developed a soft, self-charging material that can track vital signs like blood pressure and heart activity wirelessly. This innovation has significant implications for early disease detection and timely interventions in chronic conditions.
Scientists harness the wind as a tool to move objects
Researchers at Aalto University have created a method to manipulate objects with wind, allowing for controlled movement in different directions. The technique uses an airflow field to move objects along desired trajectories, with potential applications in robotics and complex processing tasks.
POSTECH Professor Yong-Young Noh resolves two decades of oxide semiconductor challenges, which Is published in prestigious journal Nature
Researchers led by POSTECH Professor Yong-Young Noh discovered that tellurium oxide can function as a p-type semiconductor in oxygen-deficient environments. They successfully engineered high-performance amorphous p-type oxide Thin-Film Transistors (TFTs) with exceptional hole mobility and on/off current ratio.
Rubber-like stretchable energy storage device fabricated with laser precision
Researchers from Pohang University of Science & Technology have fabricated a small-scale energy storage device that can stretch, twist, fold, and wrinkle. The device features fine patterning of liquid metal electrodes using laser ablation, allowing it to maintain its energy storage performance under repeated mechanical deformations.
SourcePohang University of Science & Technology (POSTECH)·Journalnpj Flexible Electronics·DateApr 24, 2024
Highly efficient and stable NIR phosphor for night vision and bio-imaging
A new NIR phosphor with broadband emission, high luminous efficiency, and thermal stability has been developed for multi-functional applications. The phosphor is composed of Cr³⁺ activated in Y₂Mg₂Al₂Si₂O₁₂ host materials, showing potential for night visualization, bio-imaging, and non-intrusive detection.
SourceKeAi Communications Co., Ltd.·JournalAdvanced Powder Materials·TypeExperimental study·DateApr 17, 2024
Rice team demonstrates miniature brain stimulator in humans
The Digitally programmable Over-brain Therapeutic (DOT) device, the size of a pea, activates the motor cortex, allowing patients to move their hands. The technology offers greater patient autonomy and accessibility than current neurostimulation-based therapies.
Building blocks for greener energy: Reconfigurable elastic metasurface akin to lego
Researchers developed a multifunctional elastic metasurface that can be freely configured for practical applications. The metasurface harnesses elastic waves in piezoelectric components, increasing electricity production efficiency and overcoming limitations in theoretical analysis.
Are high-purity cathode materials truly necessary?
Research by a team at Pohang University of Science & Technology found that impurities in lithium raw material can enhance process efficiency and prolong battery lifespan, reducing costs and emissions by up to 19.4% and 9.0%, respectively.
SourcePohang University of Science & Technology (POSTECH)·JournalNature Communications·DateApr 1, 2024
New software enables blind and low-vision users to create interactive, accessible charts
Researchers developed Umwelt software that allows blind and low-vision users to build customized data representations without an initial visual chart. The system incorporates three modalities: visualization, textual description, and sonification.
Can metalens be commercialized at a fraction of the cost?
Researchers have developed two innovative methods for mass-producing metalenses, reducing production costs by up to 1,000 times. The team achieved successful creation of large-scale infrared metalenses with high resolution and exceptional light-collecting capabilities.
SourcePohang University of Science & Technology (POSTECH)·JournalLaser & Photonics Review·DateMar 27, 2024
The Texas Heart Institute leads new NIH-funded project to significantly improve LVADs
A multi-institutional team is creating innovative technologies to reduce complications associated with left ventricular assist devices (LVADs), including infection, thrombosis, stroke, and bleeding. The new LVAD will deliver a physiological response to changes in the recipient's activity levels using a 'smart' Maglev drive technology.
Enhancing rechargeable batteries with carbon solutions
Researchers from China examined biomass-derived carbon materials for high-performance rechargeable battery electrodes. The hydrothermal method offers a promising approach for crafting these materials, enabling precise microstructure control and synergistic effects with other elements.
SourceKeAi Communications Co., Ltd.·JournalResources Chemicals and Materials·TypeSystematic review·DateMar 18, 2024
New study shows analog computing can solve complex equations and use far less energy
Researchers at UMass Amherst have developed an analog computing device called a memristor that can complete complex scientific tasks while reducing energy consumption. The device uses physical laws to perform computations in a massively parallel fashion, accelerating matrix operations and overcoming the limitations of digital computing.
Researchers prove fundamental limits of electromagnetic energy absorption
Researchers at Duke University have determined the theoretical fundamental limit for how much electromagnetic energy a transparent material with a given thickness can absorb. This finding has practical implications for applications such as stealth technology and wireless communications.
NTU Singapore scientists develop ultra-thin semiconductor fibers that turn fabrics into wearable electronics
Researchers developed ultra-thin defect-free semiconducting fibers, over 100 meters long, which can be woven into fabrics. The fibers demonstrate excellent electrical and optoelectronic performance, enabling various applications such as wearable electronics and sensors.
A breakthrough in all-solid-state battery technology, enhancing the performance of the lithium from the bottom
A research team developed an anode protection layer to prevent random electrodeposition of lithium, promoting stable 'bottom electrodeposition' and reducing unnecessary consumption. The breakthrough results in all-solid-state batteries with stable electrochemical performance over extended periods using ultrathin lithium metal anodes.
The Texas Heart Institute collaborates on multi-institutional DOD grant to develop novel left ventricular assist device
Researchers aim to address LVAD shortcomings, reducing blood damage and clotting risk through innovative designs and coatings. A novel flexible stented blood inlet and slippery hydrophilic coatings will be used to prevent flow stasis and clot formation.
Powerless mechanoluminescent touchscreen underwater
A team of researchers created an optical display technology using afterglow luminescent particles, enabling writing and erasure of messages underwater. The device exhibits resistance to humidity and maintains functionality even when submerged for prolonged periods.
SourcePohang University of Science & Technology (POSTECH)·JournalAdvanced Functional Materials·DateMar 6, 2024
Manchester resilience researchers awarded £4.2 million to help build a secure world
The University of Manchester has received a £4.2 million funding award to tackle the UK's most challenging resilience and security problems. The project, SALIENT, will drive interdisciplinary research on robust supply chains, global order, and technological security.
Enhancing electrogenerated chemiluminescence of an iridium complex
Scientists have designed a highly luminescent electrogenerated chemiluminescence cell using an iridium complex and a mediator. The cell achieves peak luminance exceeding 100 cd/m² and maximum current efficiency of 2.84 cd/A⁻¹, representing the highest values reported for ECL cells based on an iridium complex.
Angle-dependent holograms made possible by metasurfaces
Researchers from Pohang University of Science & Technology developed angle-dependent holograms using metasurface technology, allowing for diverse images based on viewing angles. The holographic display demonstrates an extensive viewing angle of 70 degrees, enabling observers to perceive the three-dimensional image from various directions.
NTU Singapore scientists produce innovative ultrathin and stretchable electronics with wide range of applications in health and wellness
Researchers at Nanyang Technological University, Singapore, have created soft electronic sensors that can detect bioelectric signals from skin, muscles, and organs. These sensors empower individuals with limb disabilities to control robotic prostheses, machinery, and motorized wheelchairs using alternative muscle movements.
EVs that go 1,000km on a single charge: Gel makes it possible
Researchers from Pohang University of Science & Technology developed a new gel-based battery system using micro silicon particles and gel polymer electrolytes, enabling stable performance even with larger silicon particles. The system exhibits improved energy density and is ready for immediate application.
Ultrasounds can help predict the risk of preterm births, new research shows
Researchers have developed an ultrasound method to predict preterm births by analyzing microstructural changes in a woman's cervix. The study found that this approach is effective at predicting risk during first-time pregnancies and combining data with delivery history for subsequent pregnancies.
SourceUniversity of Illinois Chicago·JournalAmerican Journal of Obstetrics & Gynecology MFM·DateJan 24, 2024
GIST researchers optimize the performance of novel organic electrochemical transistors
Researchers at GIST developed high-performance OECT devices based on poly(diketopyrrolopyrrole) (PDPP)-type polymers, achieving high charge carrier mobility and volumetric capacitance values. The optimized material exhibited a figure-of-merit value of over 800 F V^-1 cm^-1 s^-1.
SourceGIST (Gwangju Institute of Science and Technology)·JournalAdvanced Materials·TypeExperimental study·DateJan 17, 2024
Modified soft material promises better bioelectronics
Scientists have developed a new biocompatible material that can conduct electricity efficiently in wet environments and interact with biological media. The modified PEDOT:PSS enables the creation of organic electrochemical transistors (OECTs) with high performance and excellent characteristics.
Advancing high-speed electromagnetic suspension: a composite control scheme for enhanced stability and track irregularity suppression
A team of researchers developed a composite control scheme to suppress track irregularities in high-speed maglev trains. The scheme uses a refined disturbance observer and prescribed performance fixed-time controller to accurately estimate track irregularities and disturbances.
SourceKeAi Communications Co., Ltd.·JournalHigh-speed Railway·TypeComputational simulation/modeling·DateJan 14, 2024
Bulky additives could make cheaper solar cells last longer
Engineers have discovered a method to increase the stability of perovskite solar cells using bulky additives, which could enable the production of cheaper solar panels. The study suggests that larger molecules with specific configurations are most effective at preventing defects in the cells.
Transparent brain implant can read deep neural activity from the surface
A new transparent brain implant has been developed to read deep neural activity from the surface, providing a step closer to building a minimally invasive brain-computer interface. The technology enables high-resolution data about deep neural activity by using recordings from the brain surface and correlating them with calcium spikes i...
Rice’s Ashok Veeraraghavan wins Texas Academy’s O’Donnell Award
Ashok Veeraraghavan, a Rice University professor, has won the Edith and Peter O'Donnell Award in Engineering from the Texas Academy of Medicine, Engineering, Science and Technology. His research focuses on making invisible objects visible through imaging technology that tackles challenges beyond current technologies.
Xidian University researchers develop optimal design method for microwave power transmission
A team of Xidian University researchers has introduced an optimal design method for antenna aperture illumination with annular collection areas, maximizing power radiated on the collection area. The approach simplifies the optimization problem to maximize the ratio of two real quadratic forms, leveraging matrix theory.
Researchers unveil useful strategies for sustainable gas storage and separation with clathrate hydrates
A new study by GIST researchers provides efficient hydrogen storage solutions using clathrate hydrates, overcoming limitations such as limited gas storage capacities and slow formation rates. The study offers crucial insights for developing clathrate hydrate-based technologies for carbon dioxide separation and hydrogen storage.
SourceGIST (Gwangju Institute of Science and Technology)·JournalAccounts of Chemical Research·TypeLiterature review·DateJan 8, 2024
More lives can be saved if ambulance staff receive AI-support
Researchers developed mathematical models based on real events data from the Swedish Trauma Registry, showing that AI models outperformed clinical outcomes. The study highlights the potential of AI-powered decision support to improve ambulance staff's ability to assess injury severity and potentially save more lives.
SourceChalmers University of Technology·JournalBMC Medical Informatics and Decision Making·TypeComputational simulation/modeling·DateJan 4, 2024
Using static electricity to enhance biomedical implant durability
A research team developed electrostatic materials capable of responding to weak ultrasound, generating static electricity for implantable neurological stimulators. The technology eliminates the need for batteries, reduces device size, and minimizes strain on the human body. Experimental validation confirms its effectiveness in animal m...
Electric light transmits data 100 times faster than Wi-Fi
Researchers have developed a novel light source that minimizes interference zones, enabling stable and accurate information transmission. The technology utilizes conventional lighting systems, such as LEDs, to facilitate the simultaneous transmission of large amounts of data.
SourcePohang University of Science & Technology (POSTECH)·JournalAdvanced Materials·DateDec 27, 2023
Are diamonds GaN’s best friend? Revolutionizing transistor technology
Researchers at Osaka Metropolitan University fabricated GaN transistors using diamond substrates, achieving more than twice the heat dissipation of SiC-based transistors. This novel technology has the potential to revolutionize power and radio frequency electronics with improved thermal management capabilities.
New material allows for better hydrogen-based batteries and fuel cells
Researchers have developed a solid electrolyte that allows for efficient hydride ion conduction at room temperature, enabling the creation of safer, more efficient hydrogen-based batteries and fuel cells. This breakthrough provides material design guidelines for the development of next-generation energy storage solutions.
Wireless tracking system could help improve the XR experience
A new wireless tracking system, developed by UC San Diego engineers, enables accurate localization of objects in dynamic environments. The system overcomes camera-based limitations and provides centimeter-level accuracy, opening up new possibilities for enhanced XR experiences.
Responsible stewardship over ultrathin materials research
Researchers at Singapore University of Technology and Design propose a new unifying framework to identify low-risk materials for further development. The team screened 3,000 entries in the materials database to find 25 candidate materials that exhibit high performance and are sustainable at the material level.
SourceSingapore University of Technology and Design·JournalAdvanced Functional Materials·DateDec 14, 2023
WVU scientists spice up genetic research through habanero peppers and AI
Researchers at West Virginia University are using artificial intelligence to analyze habanero peppers and develop new methods for predicting genetic traits. The goal is to improve crop yields and prevent genetic diseases, with potential applications in human health.
Unveiling a new era of imaging: Boston University engineers lead breakthrough microscopy techniques
Researchers create new methods to visualize and understand samples with increased accuracy and sensitivity. The development of photothermal microscopy, also known as VIP microscopy, enables scientists to probe specific chemical bonds in a specimen, allowing them to map molecules at low concentrations without dye labeling.
CityU researchers tackle a century-old teletraffic challenge to enhance medical and public service efficiency
A research team at City University of Hong Kong has developed a novel performance evaluation method called Information Exchange Surrogate Approximation (IESA) to calculate blocking probabilities in queueing systems with overflow. IESA provides ways to allocate limited resources better, enhancing resource allocation and capacity plannin...
SourceCity University of Hong Kong·JournalIEEE Access·TypeComputational simulation/modeling·DateNov 30, 2023
Researchers win $1.2 million NSF award to test stability of power grids
A Binghamton University professor leads a research team to explore the stability of power grids with inverter-based resources, which have changed the grid's dynamics. The goal is to characterize the stability region without numerical simulation.
A novel lightweight wearable device to perform balance exercises at home
Researchers developed a lightweight wearable balance exercise device to improve reactive postural control in older adults, reducing the risk of falls. The device uses pneumatic artificial muscles to generate unexpected perturbations, resulting in improved peak displacement and velocity.
SourceTokyo University of Science·JournalIEEE Journal of Translational Engineering in Health and Medicine·TypeExperimental study·DateNov 27, 2023