Articles tagged with Electrical Engineering
UCSB researchers used scanning ultrafast electron techniques to visualize fleeting electric charges in semiconductor materials. The study provides direct visual evidence of charge transfer across the interface, shedding light on the behavior of hot photocarriers and their impact on device performance.
The University of Virginia has been awarded an $8 million grant to develop compact, chip-scale photonic systems that enhance the sensitivity of optical detectors. These advancements have the potential to transform fields like night vision technology and biomedical imaging.
MIT researchers have proposed a best-of-both-worlds approach to improve the speed of a 1994 quantum factoring algorithm while reducing memory requirements. The new algorithm is faster, requires fewer qubits, and has a higher tolerance to quantum noise.
Researchers have demonstrated DNA-based technologies that can store, retrieve, compute, erase, and rewrite data. The technology uses soft polymer materials with unique morphologies to create a structure with high surface area for depositing DNA, enabling the full range of operations found in traditional electronic devices.
A novel printing technique allows for the creation of thin metal oxide films at room temperature, resulting in transparent and conductive circuits that can function at high temperatures. The technique uses liquid metals to deposit two-layer thin films with remarkable stability and flexibility.
The study proposes a combined process route of laser-beam powder bed fusion and magnetic field annealing to enhance magnetostrictive strain and sensitivity. This results in improved effective magnetic anisotropy constant, reduced domain motion resistance, and increased magnetostrictive strain-sensitivity synergy.
Liling Huang is studying electric distribution system protection using a real-time digital simulator and hardware-in-the-loop simulation. The project aims to enhance protection system design and recloser separation criteria, improving reliability and resilience in Virginia's electric grid.
Researchers have reviewed advancements in wearable cuffless blood pressure monitoring, focusing on flexible electronics and machine learning. The integration of sensors, signal processing, and algorithms enables accurate blood pressure estimation, promising personalized medicine applications.
Researchers at Pohang University of Science & Technology have developed a novel analog hardware using ECRAM devices that maximizes AI computational performance. Their technique, which uses a three-terminal structure with separate paths for reading and writing data, demonstrates excellent electrical and switching characteristics.
A new method for generating dynamic security region boundaries has been developed using space division and Wasserstein generative adversarial network with gradient penalty. This method significantly improves the efficiency and accuracy of transient stability analysis in power systems with high wind power penetration.
Researchers at Chung-Ang University have discovered an additive that enhances the efficiency of perovskite solar cells, resulting in a record-breaking 12.22% efficiency. The additive, 4-phenylthiosemicarbazide, improves stability and reduces defects, paving the way for more accessible and long-lasting solar panels.
A study by KIT researchers provides urban planners with a template for designing microgrids that integrate socio-economic factors and societal participation. The model aims to create equitable access to energy and services for all population groups, particularly vulnerable ones, in the face of power outages and crises.
A team of NUS researchers developed a compact and sensitive rectifier technology that uses nanoscale spin-rectifiers to convert ambient wireless radio frequency signals into DC voltage. The technology overcomes challenges in existing energy harvesting modules, enabling battery-free operation for small electronic devices.
A new study proposes a predictive home energy management system with a customizable bidirectional real-time pricing mechanism to promote residential demand response and reduce peak loads. The system enhances user comfort and accuracy of forecasting, while also providing cost savings.
A new handheld device enables rapid non-invasive detection of harmful chemicals and biological molecules using a Raman spectrometer and cellphone camera. This technology reduces analysis time from days to minutes, making it ideal for remote areas where laboratory spectrometers are impractical.
A humanoid robot has been trained to learn and perform various expressive movements, including simple dance routines and gestures. The enhanced expressiveness and agility of the robot pave the way for improving human-robot interactions in settings such as factory assembly lines, hospitals, and homes.
UCF's STRONG-AI initiative aims to uplift bright, low-income undergraduate students in pursuing well-rounded AI education through faculty and peer mentorship and scholarship. The program has received over 150 applications and will select 10-15 students annually based on financial aid eligibility and academic success.
A new system developed by researchers at Binghamton University uses local computing power to analyze sensor data from everyday devices like smartphones and laptops, detecting abnormal movements with high accuracy. The Rapid Response Elderly Safety Monitoring (RESAM) system aims to cut reaction times and improve safety for older adults,...
Researchers at the University of Houston have introduced a new method for sleep stage classification that can be performed at home and uses only two leads. This approach achieves expert-level agreement with the gold-standard polysomnography without expensive equipment, paving the way for more accessible and cost-effective sleep studies.
Researchers developed a one-dimensional model to predict soil temperatures around energy piles in Southeast Asia. They found that temperature distribution remained stable despite changes in soil thermal conductivity, indicating GSHP systems can be designed flexibly.
Researchers from Florida Atlantic University developed a novel approach using wearable sensors and machine learning to assess balance. The method achieved high accuracy and strong correlation with ground truth balance scores, suggesting it is effective and reliable in estimating balance.
Researchers at Pohang University of Science & Technology (POSTECH) made a small change to develop highly efficient SOT materials. By creating an imbalance in the spin-Hall effect, they controlled magnetization switching without magnetic fields, achieving 2-130 times higher efficiency and lower power consumption than known single-layer ...
This study introduces a novel package for high-power density SiC power modules using stacked DBC packaging, enabling the parallel connection of more chips. The design reduces parasitic inductance and increases current carrying capacity, resulting in improved electrical performance and manufacturing efficiency.
Researchers developed a 3D metamaterial capable of detecting polarization and direction of light, overcoming limitations of conventional optical devices. The breakthrough technology utilizes pi-shaped metal nanostructures with numerical aperture-detector polarimetry to analyze light distribution.
A £800,000 project aims to optimise a flexible floating offshore wind platform for applications in the Celtic Sea. The initiative will support local supply chains and increase the use of local steel in fabrication, with the goal of reducing costs and environmental impact.
A research team at Pohang University of Science & Technology has developed a new type of hafnia-based ferroelectric memory device that can store 16 levels of data per unit transistor. The device operates at low voltages, high speeds and exhibits stable characteristics.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 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.
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.
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.
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.
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.