Articles tagged with Mechanics
Tina Rost will use a $800,000 NSF CAREER award to control the disorder in high-entropy ceramics, making them stronger and more heat-resistant. Her team aims to develop new materials with tailored electrical, magnetic, and mechanical properties using machine learning-enhanced analysis.
Researchers found that intercellular flow plays a major role in tissue response to deformation, affecting organs' adaptability to conditions like aging and cancer. The study's findings could inform the design of artificial tissues and organs.
Researchers developed self-propelled ferroptosis nanoinducers to enhance cancer therapy by inducing programmed cell death. The nanotherapeutics exhibited enhanced diffusion and deep tumor penetration while maintaining biocompatibility.
Researchers developed a spherical prototype with adjustable surface dimples to cut through pressure drag and generate lift, reducing drag by 50% compared to smooth counterparts. The adaptive skin setup can adjust dimple depth to maintain drag reductions and generate controlled movement.
Researchers discovered that butterflies use body pitch to generate aerodynamic forces and sustain hovering flight. By adjusting their body angle, they counteract gravity and achieve stable flight. This finding could revolutionize the design of stealthy MAVs with low structural demands.
Research published in Communications Physics found that eggs are more likely to survive drops when oriented horizontally, contradicting a common classroom science experiment assumption. The study's findings suggest that the shell of an egg can better withstand impact when dropped side-on due to its flexibility around the equator.
A study by Northwestern Polytechnical University and the Ningbo Institute modeled manta ray group dynamics to understand their propulsion. The researchers found that tandem formation significantly improves middle manta ray's performance but two triangular setups decrease overall efficiency compared to a single swimmer.
Scientists studied rolling physics of real-world objects, including spheres and cylinders on inclines, finding periodic motion with predictable patterns. The research demonstrates topological theorems and illustrates abstract mathematics through simple experiments.
A team of researchers at Tokyo University of Agriculture and Technology has developed a scaling model for transitional pressure development during acceleration. The study combines the incompressible and compressible flow theories to create a unified model that can be applied universally to various floors and liquid types.
Researchers observe quantum oscillations in CaAs3 near the Mott-Ioffe-Regel limit, showing strong electronic coherence despite insulating behavior. The findings challenge conventional theories and offer a new perspective on quasiparticle coherence.
A Brazilian study found that high blood pressure hardens the bronchi and increases airway resistance, reducing respiratory capacity. Regular physical activity may partially protect against this hardening.
Researchers have unveiled insights into how microscopic organisms such as marine plankton move through water with different density layers. The study reveals two types of microscopic swimmers that navigate density gradients differently, with pullers moving parallel to the gradient and pushers swimming perpendicular.
For the first time, researchers have measured quadrupolar nuclei using zero-field nuclear magnetic resonance (NMR) spectroscopy. This breakthrough enables precise analysis of molecular structures and spin interactions, with potential applications in medicine and materials science.
Researchers developed artificial maple seeds that can be controlled using light to monitor environmental conditions, such as pH levels and heavy metal concentrations. The technology has potential applications in search-and-rescue, endangered species studies, and infrastructure monitoring.
Elastic turbulence, a chaotic fluid motion in non-Newtonian fluids, exhibits universal power-law decay of energy and intermittent behavior. This study reveals its unexpected similarity to classical Newtonian turbulence, paving the way for developing a complete mathematical theory and predicting flow patterns.
Researchers at Washington University in St. Louis have developed a new technique to enhance quantum entanglement stability in qubits. This breakthrough addresses the challenges of maintaining coherence and reliability in quantum systems.
Researchers at Rice University developed a new material that mimics skin elasticity and motion types while preserving signal strength in electronics. The material, made by embedding ceramic nanoparticles into an elastic polymer, stabilizes radio-frequency communication and minimizes energy loss.
Scientists at POSTECH create conducting polymers with exceptional electrical conductivity, rivaling graphene's performance. The breakthrough achieves ultrafast electron mobility and long phase coherence length, overcoming a major challenge in organic semiconductors.
Researchers from the University of Leicester have discovered that 'synchronic' thermal fluctuations are responsible for friction in superlubricity. By lowering surface temperature, they can lower friction forces, opening doors to industrial applications with reduced energy consumption.
A new study reveals that molecules can interact non-reciprocally without external forces, driven by kinetic asymmetry and gradients of reactants and products. This finding has significant implications for our understanding of complex behavior in living organisms and the development of novel molecular machines.
A team of scientists has found evidence linking oceanic weather systems to climate on a global scale, revealing that these interactions require the mediation of the atmosphere. The study used mechanical analysis to understand energy transfer across different patterns in the ocean and atmosphere.
Researchers develop a mathematical model that analyzes the future survival of plants in a changing climate by studying how far wind can carry seeds. The model provides fast and reliable predictions of seed movement, considering factors like seed type, plant height, and wind speed.
Scientists from the University of Tsukuba have created a novel measurement technique to study fluid mixing phenomena, leveraging a selective color imaging method. The technique utilizes ultrasonic waves to levitate and mix small droplets, allowing researchers to capture their mixing state in detail.
The researchers propose a hybrid organic–inorganic gas sensor design that enhances gas sensing performance while maintaining sensing speed. The proposed design outperforms conventional sensors in terms of chemical sensitivity to NO2, showcasing impressive durability and higher potential for long-term installation.
Researchers at Xi'an Jiaotong-Liverpool University have developed a sensitive and robust pH sensor that can detect pH variation in just a few microliters of samples. The new sensor uses novel materials and methods to overcome the current method's limitations, which are not sensitive enough or fragile for commercial-scale use.
New plant cell walls exhibit significantly different mechanical properties compared to surrounding parental walls, enabling cells to alter their local shape and influence the growth of plant organs. Researchers have discovered that new cell walls in some plants are 1.5 times stiffer than the parental cell walls.
The 76th annual meeting of the American Physical Society's Division of Fluid Dynamics will bring together over 3,500 scientists from around the world to present new research on fluid dynamics. The conference will feature a scientific program with over 3,200 presentations and a gallery of fluid motion visual arts competition.
Researchers at Stevens Institute of Technology use a 350-year-old mechanical theorem to explain complex behaviors of light waves, showing a direct relationship between entanglement and polarization. This connection enables the deduction of hard-to-measure optical properties from simpler light intensity measurements.
Researchers at Hebrew University of Jerusalem discovered supershear tensile cracks that surpass classical speed limits and transition to near-supersonic velocities. These findings challenge traditional understanding of fracture mechanics, offering new avenues for studying material properties.
Scientists designed materials with mechanical memory by introducing frustration into their structure, resulting in a new type of order. This breakthrough could be used to create robotic arms and wheels with predictable bending mechanisms, as well as more efficient quantum computers.
Researchers comprehensively reviewed recent discoveries in 2D material mechanics, highlighting elastic properties, failure, and interfacial behaviors. Computational advancements are crucial for understanding dynamic behaviors and practical applications.
Researchers at the University of Missouri have developed a smart material prototype that can control the direction and intensity of energy waves. This breakthrough could have significant implications for various fields, including military and commercial applications.
Tiny California blackworms tangle themselves to perform biological functions, but can untangle in mere milliseconds. Researchers have discovered the mathematics behind this process, revealing how helical gaits and topological principles enable the worms' superpower.
A novel, low-cost sensor system utilizing force-sensing resistor technology has been developed by Pusan National University researchers for real-time pipeline monitoring. The system demonstrated a 99.4% correlation with commercial sensors, enabling accurate detection of pipeline damages.
A team of researchers from Vietnam and Korea investigated the collapse of a spherical bubble near an oscillating wall using a two-phase flow model. The study revealed significant jet formation, higher pressure peaks, and faster collapse times compared to fixed wall scenarios.
Researchers at the University of Missouri have designed a soft and breathable material that can be worn on the skin without causing discomfort. The material, made from liquid-metal elastomer composite, has integrated antibacterial and antiviral properties to prevent the formation of harmful pathogens.
Researchers studied how shrimp legs minimize drag while swimming and how fruit flies use flapping wings to 'sniff out' smells for navigation. They also explored how honeybees fly in windy conditions, finding that windy conditions don't affect flight performance but increase evasive maneuvers.
Studies investigate the impact of temperature, speed, and materials on chocolate fountain flow, as well as oil and vinegar separation in vinaigrettes. A framework also describes the fluid dynamics involved in squeezing sauces out of bottles.
Researchers at UNO and UNL are using machine learning to investigate the metabolic cost of different phases of the gait cycle across different age groups. The goal is to create practical applications for gait rehabilitation, such as designing improved assistive devices.
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.
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.
The Max Delbrück Center researcher is investigating the mechanism of how the heart responds to environmental factors and adjusts its elastic properties. He plans to develop technologies for single-cell mechanics, -transcriptomics, -proteomics to enable higher rates of throughput for multi-omics approaches.
Researchers at University of Missouri and University of Chicago develop an artificial material that can respond to its environment, make decisions, and perform actions not directed by humans. The material uses a computer chip to control information processing and convert energy into mechanical energy.
Researchers from The University of Electro-Communications and Tokyo University of Agriculture and Technology found that sintering porous media inside heat transfer tubes increases the area available for heat exchange, reducing thermal resistance and enhancing heat transfer performance. Heat transfer in these tubes is five times greater...
Researchers discovered that bacteria enter corn plants through natural openings at the leaf's edge, causing Goss's wilt. High concentrations of bacteria lead to freckles and disease symptoms.
A study by Arizona State University researchers reveals that the coordination between facial growth and chewing muscle mechanics determines when adult molars emerge. The study found that human molars come in at a later age due to slow jaw growth and short faces, which creates a mechanically safe space for molar emergence.
Research reveals that humans take shorter strides than chimpanzees due to reduced pelvic rotation, extending their stride by only 5.4 times compared to the mini wiggles performed when walking. This discovery challenges the long-held assumption that humans have evolved the longest possible stride for efficiency.
Researchers at Nagoya City University have detected strongly entangled pair of protons on a nanocrystalline silicon surface. This breakthrough could enable the creation of more qubits and ultra-fast processing for supercomputing applications, revolutionizing quantum computing.
Researchers at Skoltech developed a mathematical model for thermoplastic composite materials, reducing conservatism in strength calculations. The model allows for virtual testing of structures, minimizing manufacturing costs while ensuring safety and quality requirements.
Researchers at Princeton University developed a new reconfigurable structure, called bigon rings, that can change shape under variable conditions. The technique, inspired by lace making, has potential applications in space exploration, wearable technology, and other fields.
A new study published in Frontiers in Sports and Active Living found that advanced shoe technology from Nike reduced running times for both elite male and female competitors. Female elite athletes experienced the largest improvements, with seasonal best times decreasing by 1.7 to 2.3 percent between 2016 and 2019.
Scientists at the University of Pittsburgh have identified a new, primary phase of blood vessel restructuring that begins immediately after an aneurysm forms. This immediate adaptation enables the vessel to better handle new loads and reduces the risk of rupture.
Researchers at Penn State have developed graphene-based memory resistors that mimic the brain's neural networks and offer high precision neuromorphic computing. The new technology can control up to 16 possible memory states, compared to two in most existing memristors.
Researchers at Penn State have developed a gel-based 3D bioprinting method that can create complex shapes and tissues with precise cell placement. The yield stress gel allows for the self-healing of the gel structure, enabling the creation of free-form, complex shapes.
New research investigates how viruses trick cells into forming lipid rafts, allowing them to enter and infect the human body. The study suggests that understanding this process could lead to innovative approaches to fight viral infections.
New research reveals that the shape and architecture of collagen and elastin fibers in lungs affects their elasticity. Crimped fibers exhibit greater flexibility, while straight fibers are stiffer.
Researchers at SMART developed a new confocal reflectance interferometric microscope to study nuclear membrane mechanics in intact cells. This label-free technology has the potential to revolutionize our understanding of metastatic cancers and genetic illnesses, enabling the identification of stem cells for therapeutic applications.
Gnashing teeth's secret strength lies in the microarchitecture of brittle materials, where adding small defects can increase glass strength 200 times over. Researchers developed two models to describe fracture propagation and contact mechanics, paving the way for stronger ceramics, biomedical implants, and building materials.
Steve WaiChing Sun, a civil engineering professor at Columbia University, has won a National Science Foundation CAREER award to develop an augmented intelligence approach for predicting material failures. His tool uses deep reinforcement learning to generate accurate predictions and improve complex analyses and designs for infrastructure.
Researchers use human T cells to create unbreakable encryption keys, solving a problem in mathematical algorithms that relies on one-way functions. The approach is designed to protect against increasingly powerful computers and quantum computing.