Articles tagged with Hysteresis
Researchers from the Mann Research Group found strong path dependence in Plio-Pleistocene glaciations, driven by a gradual decrease in regolith and volcanic outgassing. The study suggests that carbon dioxide levels determine the onset of the Mid-Pleistocene Transition, and that it's not too late to act to prevent ice sheet collapse.
A proposed speed loop pseudo derivative feedforward (PDFF) controller-based direct torque controller for a PMSM drive reduces oscillations and overshoots. Simulation results show the dynamic performance of the proposed system is superior to PI controllers, with less overrun and improved stability.
Scientists at Shandong University have created a novel approach to fabricate high-performance NiTiNb shape memory alloys using laser powder bed fusion. The in-situ alloying process yields good mechanical and functional properties, surpassing conventional casting methods. By integrating material synthesis and structure forming, research...
A research team found that voltage hysteresis in Li2RuO3 is attributed to different intermediate crystalline phases formed during charge and discharge processes, not irreversible structure changes. This discovery challenges conventional theory and has implications for developing high-energy-density lithium-ion batteries.
A model has been developed to estimate the changes in air radiation dose rates caused by rainfall, enabling accurate quantification of long-term decreasing trend of air dose rates. The study found that increased soil moisture content provides enhanced radiation shielding effect, leading to post-rainfall decrease in air dose rates.
Researchers at Texas A&M University have identified a new circuit element called the meminductor, which exhibits memory-like properties. The discovery was made using a two-terminal passive system and proved the existence of meminductance in an inductor circuit element.
Channeling ions into grain boundaries in perovskite materials improves the stability and operational performance of perovskite solar cells, paving the way for more efficient and practical solar cell technologies. This breakthrough finding may also inform the development of more efficient energy storage technologies.
Researchers have developed a novel substrate boosting square-tensile-strain, promoting four-variant spontaneous polarization and defect-dipoles. This breakthrough enables reversibly controlled ternary polar states and ferroelectric bias.
Researchers at ICIQ have demonstrated that single molecules can retain properties even when the stimulus disappears, breaking previous expectations. This discovery has significant implications for molecular data storage and could lead to new possibilities for storing multifunctional information.
A new study refutes a long-standing explanation for low energy efficiency in lithium-ion batteries, suggesting that voltage hysteresis is caused by reversible electron transfer between oxygen and transition metal atoms. This phenomenon could be mitigated through manipulation of electron transfer barriers.
Researchers at the University of Chicago have discovered how cells can remember and respond to environmental pressure by adjusting their protein structures. The team found that an optimal concentration of cross-linkers allows proteins to strengthen under stress, enabling the material to 'remember' past experiences.
Researchers developed a time-lapse system to measure membrane tension and recorded the dynamic responsiveness of the KcsA ion channel. Their experiments revealed hysteresis, where channels activate only at high membrane tension and remain active for a short period even after returning to low tension.
The National University of Singapore team developed a new sensor material called TRACE with significantly less hysteresis, enabling more accurate wearable health technology and robotic sensing. The breakthrough improves the reliability of data readouts, allowing for wider applications in healthcare and robotics.
Researchers have fully identified the nature of oxidised oxygen in Li-rich NMC using RIXS, a key step towards tackling battery longevity and voltage fade. The study reveals that molecular O2 is trapped within the bulk material, enabling a new mechanism for explaining the O-redox process.
The study reveals that the insulating ground state in NaOsO3 can be preserved up to 35 GPa, with a sluggish metal-insulator transition reduction from 410 K to near room temperature. The team also finds hidden hysteretic resistance properties and electronic character anomalies under pressure.
Researchers at KAIST designed a flexible piezoresistive pressure sensor with high uniformity and low hysteresis, offering improved measurement reliability. The sensor's uniformity was found to be directly related to pore size and shape variability.
Researchers discovered that an inhomogeneous magnetic field affects the magnetization reversal mechanism of exchange-coupled structures, increasing sensitivity of magnetic field detectors. The study reveals a step-wise hysteresis loop and changes in the shape of the loop with varying magnetic field gradients.
Researchers at Linköping University discover that hypothetical particles called 'hysterons' exist in organic ferroelectric materials, explaining their unique behavior and properties. The study reveals that the material's nanostructure plays a crucial role in its switching process.
Researchers at Uppsala University have studied the dynamics of active swarms using computer simulations and experiments on unicellular algae. They found that the collective response was only possible when the field was varying slowly, resulting in a more persistent motion.
Researchers at JQI observe hysteresis in an ultracold atomic gas, a phenomenon crucial for electronics. By controlling the rotation of a quantum fluid, they create a stable two-velocity state that has implications for building practical atomtronic devices.
Scientists create magnetic valve using spintronics to stabilize data storage in MRAM. The spin-valve concept enables controlled lifetime of stored information, increasing overall life expectancy.
Shorebirds like phalaropes exploit contact angle hysteresis and capillary ratchets to propel food into their mouths, overcoming gravity. The efficiency of this process depends on beak shape and wettability, making it vulnerable to oil spills.
A small amount of iron adds 15-30% to the effective cooling capacity of a material, enabling improved near-room-temperature applications. The iron supplement eliminates hysteresis losses, allowing the material to perform at its peak potential.