Articles tagged with Mechanical Engineering
Researchers at Indiana University and the University of Tennessee have developed a one-dimensional helium model system, which enables the creation of smaller and faster microchips. The new system is designed to explore the behavior of particles in a confined space, allowing for the study of previously unexplored physics.
A team of researchers has developed a microscopic microphone that can detect sound waves by applying polymer materials to microelectro-mechanical systems. The device offers a wider auditory field than human ears and can be easily attached to the skin with a surprisingly small size, recognizing both loud and low-frequency sounds without...
Researchers at Penn State have created a highly customizable microscale gas sensing device using laser writing and responsive sensor technologies. The device enables the simultaneous detection of multiple gases, including disease indicators and pollutants, in various environments and substrates.
Researchers have devised a way to deliver carbon monoxide to the body using stable foams that can be delivered to the digestive tract. The foams reduced inflammation of the colon and helped reverse acute liver failure in mice, offering a potential alternative to immunosuppressive treatments.
The study used synchrotron radiation X-ray computed tomography (CT) to observe internal nonuniform deformation of a material in several dozens mm. They found that performing deformation evaluations at both macroscale and microscale can provide insights into the vibration damping mechanism of rubber materials.
A new optimization tool can quickly improve performance of various autonomous systems, including walking robots and self-driving vehicles. The tool uses automatic differentiation to identify tweaks that achieve desired outcomes, reducing trial-and-error simulations.
Researchers use machine learning to automatically analyze Reflection High-Energy Electron Diffraction (RHEED) data, enabling faster and more efficient discovery of new materials. The study focused on surface superstructures in thin-film silicon surfaces and identified optimal synthesis conditions using non-negative matrix factorization.
John Kershner, a Lehigh University PhD candidate, has been awarded a Fulbright research grant to continue his work on owl-inspired aero-acoustics in Germany. He will collaborate with researchers at Brandenburg Technical University and the DLR to experimentally test these designs.
Scientists have found that axisymmetric 'spike waves' can exceed previously thought limits on ocean wave height, leading to significant implications for maritime safety. The new research revealed the fundamental mechanisms behind highly directional and crossing waves becoming much larger than others.
Researchers developed a color filter with metasurfaces that can display vivid images on a filter as thin as three strands of hair. The filter offers 120-170 times higher resolution than high-end smartphone screens and can control individual pixel colors for various applications.
A Penn State-led team created an artificial skin that exhibits both elasticity and cognitive functions like cephalopod skin. The device retains its neurological behaviors when deformed, enabling potential applications in neurorobotics, skin prosthetics, and artificial organs.
Researchers have developed unique self-regulating footwear for persons with diabetes, featuring snapping mechanisms that distribute pressure evenly. The sandals can be customized to an individual's foot dimensions and walking style, promoting faster healing of injured regions and preventing further injuries.
A simplified surgical tool called RAIS has been developed to enable laparoscopic surgery in low-to-middle income countries. The device uses a mechanical retractor and does not require CO2 gas or a general anaesthetic, making it more accessible and affordable for rural surgeons.
Researchers designed a modular AI chip that can be easily upgraded by swapping out layers, reducing the need for new devices. The chip uses optical communication to transmit information between layers, enabling high versatility in edge computing applications.
Researchers developed an AI technology that merges physical domain knowledge with AI to accurately predict battery capacity and lifespan. The approach improved prediction accuracy by up to 20% and has significant implications for the widespread adoption of electric vehicles.
A new mathematical model has been developed to reproduce the experimental results of topological change in a partially miscible VF pattern. The researchers successfully incorporated phase separation effects and the Korteweg force into the classical miscible VF model.
A team of geologists successfully forecasted a Sierra Negra volcano eruption in June 2018 using a supercomputer-powered model. The model predicted an imminent eruption five months before it occurred, highlighting the power of high-performance computing in volcanic forecasting.
Researchers at Cornell University have developed a new algorithm for autonomous underwater sonar imaging that significantly improves speed and accuracy for identifying objects such as explosive mines and sunken ships. The new approach, called informative multi-view planning, integrates information about object locations with sonar proc...
MIT researchers develop an interactive design pipeline enabling users to create customized robotic hands with tactile sensors. The platform streamlines the process, allowing users to adjust palm and fingers and integrate tactile sensors, resulting in complex tasks like picking delicate items or using tools being performed flawlessly.
McGill University researchers have created a class of cellular metamaterials that can flat-fold and lock into positions that remain stiff across multiple directions. These materials offer unprecedented properties for deployable structures such as submarines, robots, and low-volume packaging.
Scientists at the University of Texas at Austin have developed a low-cost gel film that can pull water from the air in dry climates, producing up to 6 liters of water per day. The film uses renewable cellulose and konjac gum, making it an affordable solution for communities struggling with water shortages.
Concentrated solar power (CSP) plants use wet cooling methods to dissipate waste heat, but this can lead to significant water loss. A new study developed a radiative cooling system with cold storage that reduces water consumption by up to 85% in hot regions.
A novel surface treatment, tested in laboratory and clinical settings, reduces biofilm growth by over 80% and prevents bacterial adhesion. The treatment has shown promising results in preventing urinary tract infections and improving patient outcomes.
To achieve the EU's climate neutrality goal by 2050 with a maximum temperature increase of 1.5 degrees Celsius, a massive rollout of solar and wind power is required, along with investments in Power-to-X technologies and carbon capture. The model suggests installing 400 GW of new solar and wind energy capacity every year from 2025-2035.
A team from the University of Missouri is using artificial intelligence to accelerate the discovery process in materials science. By integrating machine learning algorithms and AI into traditional laboratory processes, they aim to reduce time and cost while increasing the rate of material development. Associate Professor Derek T. Ander...
Researchers at Drexel University have developed a design optimization system to incorporate blood vessel-like cooling networks into battery packaging for electric vehicles. The system balances performance-enhancing factors against problematic variables like weight and thermal activity to provide the best battery package specifications.
The Rice-Waseda team created a computer simulation model that can accurately depict the complex aerodynamics around a moving car and its rolling tires. The model uses NURBS Surface-to-Volume Guided Mesh Generation method, which enables it to capture the deformation of tires as they roll on the road.
A new device, consisting of a smart stent and printed soft sensors, can wirelessly monitor hemodynamics in real-time, detecting various vascular conditions. The system uses inductive coupling for wireless energy transfer and has the potential to replace existing clinical devices and angiograms.
Researchers at Concordia University have developed a method to manufacture adaptive compliant trailing edge morphing wings using 4D printing of composites. This technology can make UAV wings cheaper to manufacture and more efficient in flight, supporting good amounts of load for small or medium-sized vehicles.
A Tokyo University of Agriculture and Technology research team finds that changes in viscoelastic properties affect flow dynamics differently depending on gel elasticity, leading to a reversal of flow effects. This discovery opens new avenues for controlling flow dynamics using chemical reactions.
Researchers at Lehigh University developed a new method to accurately gauge healing progress of bone fractures using 3D models. The model identifies the cutoff point between soft tissue and bone, allowing for more precise predictions of bone behavior during the healing process.
A research team developed a technology to increase chirality between light and nanoparticles using metamaterials, significantly strengthening the signal. This allows for the accurate structural analysis of chiral nanoparticles with high precision.
Researchers developed a 3D imaging technique that captures thin peripheral blood vessels, aiding in diagnosing and treating peripheral vascular diseases. The new modality provides functional diagnostic values for blood supply to tissues without contrast agents.
A UC Santa Barbara-designed mechanical jumper has achieved a record-breaking 100-foot height, thanks to the innovative application of 'work multiplication' and a novel hybrid spring design. The device overcomes biological limitations, enabling efficient locomotion in challenging environments.
The ALLOMAN hexapod robot combines leg and arm functions to achieve mobile manipulation, increasing flexibility and efficiency in legged robots. This novel platform has been successfully developed by the Robotics Institute of Beihang University, China.
Researchers developed a high-performance microscopy system for non-invasive examination of conjunctival goblet cells, allowing for real-time imaging in live animal models and human patients. The system enables high-resolution images of CGCs without causing harm to the subject.
The MechanicalTree is a scalable solution for reducing carbon emissions by collecting CO2 from the atmosphere without the need for blowers or fans. It has the potential to curb greenhouse gas emissions and combat global warming by capturing approximately 1,000 tons of CO2 per day.
Researchers have engineered a tiny living heart chamber replica to study disease progression and test new treatments. The miniPUMP device mimics the real organ's mechanics, allowing for accurate tracking of how the heart grows in embryos and studying the impact of disease.
Researchers are studying moths to understand agile decision-making in complex environments, aiming to develop autonomous bio-inspired systems. Meanwhile, a team is exploring origami- and kirigami-inspired flexible structures for multifunctional applications.
Researchers develop technique to improve ACDF by testing variable angle screws, reducing risk of micro motion and subsidence. The cage-screw combination model shows promising potential for increased stiffness and reduced clinical failure.
Researchers subject Oreos to various tests, finding that the cream almost always separates onto one wafer, regardless of flavor or amount of filling. The team's study provides insights into the properties of yield stress fluids and offers a new approach to understanding non-Newtonian materials.
A new machine learning-based system developed by MIT and Stanford researchers enables the rapid development of optimized production methods for perovskite-based solar cells. The system has already led to the manufacturing of cells with an energy conversion efficiency of 18.5 percent, a competitive level for today’s market.
A new robot system enables automatic insertion of needles for prostate diagnosis and treatment, reducing trauma and improving success rates. The 8-joint robot uses a parallel structure for precise control and can be calibrated using particle swarm optimization.
A new robotic system allows surgeons to remotely treat patients experiencing a stroke or aneurysm, providing teleoperated endovascular treatment during the critical golden hour. With just one hour of training, neurosurgeons can successfully operate the system to guide a wire through complex vessels and reach difficult-to-reach areas.
A new ultrafast humidity sensing optical sensor has been developed by a POSTECH research team, with an application potential for security tags and humidity-sensitive electronic devices. The sensor boasts an ultrafast speed 10,000 times faster than conventional Fabry-Perot interferometer based optical sensors.
Researchers at NYU Tandon School of Engineering propose a paradigm to solve the problem of inferring collective size from individual behaviors. By observing self-propelled Vicsek particles, they show that the time rate of growth of mean square heading is sufficient to predict the number of particles under particular parameters.
Tel Aviv University researchers develop innovative model that explains wave formation, tested in complex experiments. The model takes into account all unstable harmonics and limitations of previous models, providing high reliability for describing physical situation.
A research team from City University of Hong Kong developed a multi-functional electrostatic droplet tweezer that can precisely trap and remotely guide liquid droplets on flat and tilted surfaces, as well as in oil mediums. The technology offers precise and programmable droplet manipulation with high velocity and agile direction steering.
Scientists at the University of Illinois Chicago have created a new family of environmentally safe, frost-resistant coatings that can delay the formation of frost for extended hours. These coatings can be applied to various surfaces without preconditioning or expensive surface treatments, reducing pollution and ice-related problems.
Engineers at University of Illinois Chicago develop additive material to make inexpensive iron-nitrogen-carbon fuel cell catalysts more durable. The material scavenge and deactivate free radicals, reducing corrosion and degradation in fuel cells.
Researchers at Binghamton University discovered that orb-weaving spiders use their webs as extended auditory arrays to capture sounds, allowing them to detect prey and predators. The study found that the spiders can respond to sound levels as low as 68 decibels and localize sound sources with 100% accuracy.
A new device made from silicone and liquid metal, with knotted cords, measures pressure in the digestive tract similar to high-resolution manometry. The invention brings down cost and makes it easier to produce and deploy, offering a cheaper alternative for diagnosing dysmotility disorders.
Researchers found that opening stadiums to fans with safety protocols in place did not lead to an increase in local Covid case counts. The study used synthetic control method to analyze data from 16 stadiums, which mirrored the trajectory of surrounding counties without stadiums.
Researchers at University of Delaware have found that humans can detect subtle changes in chemical composition of surfaces, which could improve tactile technologies and virtual reality experiences. This discovery has potential applications in developing higher-quality tactile aids for people with visual impairments.
Researchers at Northwestern University developed an AI-assisted Nanofountain Probe Electroporation system to engineer stem cells. The new method reduces cell loss and increases throughput, enabling selective manipulation of individual cells in micro-arrays.
A research team at Pohang University of Science & Technology developed an optical encryption platform that works in both the visible and ultraviolet regimes. The platform uses metasurface technology to display unique product numbers and improve encryption security.
Two Singapore-designed artworks are orbiting the Earth on the ISS as part of Moon Gallery, a project consisting of 64 artworks from around the world. The artworks were successfully launched into space and will come back to Earth after 10 months, allowing scientists to study their behavior in microgravity.
Researchers at MIT have developed a new system that can automatically clean solar panels without using water, reducing dust accumulation's impact on efficiency. The system uses electrostatic repulsion to detach dust particles, improving overall power output and potentially saving $200,000 in annual revenue.
A study by researchers at Pusan National University has investigated the relationship between surface structures and nanoscale friction in multi-layered CVD graphene. They found that only the top-most layer of graphene was twisted with respect to the rest, affecting layer-dependent nanoscale friction.
Researchers at UTSA are using a three-year DoD grant to improve the reliability of additive manufacturing for critical machinery. They aim to predict mechanical properties and dimensional stability of components fabricated with AM.