Articles tagged with Fluids
Researchers have developed a new model for micro-swimmer-based transport, which shows that a swarm of micro-swimmers can transport particles more efficiently than traditional methods. The study's findings suggest that this phenomenon could be useful in biological applications, such as delivering drugs to specific locations in the body.
The NIST-developed emberometer uses digital cameras to track embers in mid-air and reconstruct their 3D shapes. This tool helps researchers understand the behavior of embers, which can aid in developing better protection for structures during wildfires.
A USF Health study found that deleting a single gene, Foxo1, promotes the growth of functional lymphatic valves in both young and adult mice. This discovery offers a promising early treatment approach for hereditary lymphedema, a chronic condition characterized by fluid accumulation under the skin.
Earthquakes generated by controlled fluid injection at the Rangely oil field were caused by destabilizing fault pore pressure changes, according to a new mechanistic model. The study revisits data from the decades-old project in light of increased seismicity due to fluid injection.
Scientists have developed a paramagnetic ring that encapsulates water droplets under a magnetic field, enabling precise manipulation. The ring, made of an oil-based ferrofluid, forms spontaneously around the droplet and can be moved remotely by changing the magnetic field.
Researchers found significant periodic flow velocity fluctuations in fuel injector ignite combustion oscillations, leading to high mechanical stress on the combustion chamber. The findings provide a reasonable answer for why these oscillations occur and have significant implications for preventing fatal damage in critical engines.
A collaboration has created a first-ever simulation of the deep-sea Venus basket sponge, revealing its ability to withstand dynamic forces and create nutrient-rich vortex within its body cavity. The structure of the sponge is optimized for fluid flow, reducing drag and facilitating feeding and reproduction.
Researchers simulated the hydrodynamic behavior of deep-sea Venus flower sponge E. aspergillum, revealing its skeletal adaptations optimize flow physics within and beyond its body cavity. The findings improve understanding of mechanical and biological responses to dynamic forces.
Researchers developed a new computational design optimisation method using Machine Learning algorithms to predict useful design combinations and guide the design process. The method reduces simulation costs, leading to faster and cost-efficient designs for industrial applications.
Researchers found that protistan grazing pressures are higher at hydrothermal vent sites than surrounding deep-sea environments. Protist consumption of bacteria and archaea biomass accounts for up to 22% of fixed carbon.
Researchers at New York University have found a way for heavy motorized objects to navigate steep inclines by exploiting density imbalances and hydrodynamic effects. This breakthrough enhances understanding of gravitaxis and has implications for engineering and pharmaceutical development.
The study reveals that microswimmers propel themselves through nematic liquid crystals with non-random trajectories to minimize elastic energy. The speed of a microswimmer varies depending on whether it pushes or pulls the surrounding fluid, and becomes slower when pushing with a stronger force.
Researchers identified a specialized protein called TRPM7 that regulates the key step in cancer metastasis by sensing fluid flow and stopping cells from entering the bloodstream. Artificially increasing TRPM7 expression in tumor cells may help stop intravasation and ultimately metastasis.
A team of researchers has created a new normal brain growth curve chart for children, resolving decades-long issues in the field. The study found that male and female brains grow differently, but not in terms of cognitive ability, and that there is a universal ratio between brain size and cerebrospinal fluid volume.
Researchers used high-performance computing to study turbulent jet flames, improving combustion models by understanding intermittency in turbulence simulations. This work focuses on the smallest structures of turbulence and its implications for engineering goals like aerospace technologies and power plants.
An international team has discovered a persistent pattern formation dynamics in viscous fingering, a phenomenon relevant to oil recovery and spreading of groundwater. The study's findings show that the pattern is different from classical radial and rectilinear forms.
The simulation reveals that smaller aerosol particles can spread over a greater area and evade face masks, while larger particles dissipate quickly. The study provides new insights into the capacity of infectious aerosols to disperse in the environment.
Researchers found that small pockets of virus-laden air can detach from an exhaled breath and travel in a ballistic manner, reaching large distances. This phenomenon is known as the butterfly effect, where miniscule initial variations are amplified by turbulence.
Scientists from Osaka University have solved the physics of Guinness' cascading flow, a phenomenon that affects the texture of nitrogenated stout beer. The research has significant implications for industries such as pharmaceutical production and city water purification.
Researchers found that fluid flow vortices have high information processing capabilities before transitioning to a Karman vortex street. Virtual physical reservoir computing using numerical simulation revealed the relationship between vortices and info processing capacity.
Researchers discover that twisting liquid bridges breaks them more effectively than stretching, reducing contamination and speeding up the dispensing process. The 'edge fracture' mechanism is identified as the underlying cause of this phenomenon.
Researchers have discovered the VFD's capabilities in controlling chemical reactivity, materials processing, and probing self-organised systems. The device has shown promise in synthesizing various compounds and could lead to more efficient and environmentally friendly production methods.
Researchers find that hyper-enriched gold deposits form like soured milk, with butterfat particles clumping together to form a jelly. This process explains the rapid formation of these rare and valuable deposits, solving a decades-old scientific puzzle.
A team led by Santa Fe Institute Professor Chris Kempes has developed a new ecological biosignature based on mathematical patterns in elemental ratios. This approach may help scientists detect life in systems that don't resemble Earth's conditions.
Researchers at the University of Missouri have developed a model for studying uterine fluid in the lab without invasive monitoring or experimentation during active pregnancies. The discovery paves the way for precision medicine approaches to maintaining healthy pregnancies and detecting potential complications.
Researchers have discovered a way to date fluid-bearing diamonds, revealing three distinct periods of diamond formation spanning over 2 billion years. The study provides insights into the evolution of the deep earth and continents, with potential implications for our understanding of planetary history.
Research reveals that testing limits make timing crucial for lockdown effectiveness, with marginal differences between success and failure, and super-exponential growth causing rapid increases in infections.
Researchers found that shallow wastewater injection is linked to widespread deep earthquake activity in the Delaware Basin. The study used data analytics and computer modeling to mimic fluid extraction from shale reservoirs and identified a causal link between deep stress increases and shallow fluid injection. This finding has signific...
The latest Geology articles publish research on shocked zircon, the Holocene Sonoran Desert, Himalayan collision dynamics, and more. Recent studies reveal nonlinear fault damage zones, a history of the Larsen C Ice Shelf reconstructed from sediment cores, and evidence for slow titanium diffusion in quartz.
A new study by Rebecca Salvage and David Eaton found that hundreds of small earthquakes occurred in the Kiskatinaw area after oil and gas recovery shut down. The researchers suggest aseismic slip driven by trapped fluid from previous hydraulic fracture injections may be causing these latent earthquakes.
A team of researchers has developed a computational framework that captures cell interactions and their impact on embryonic tissue dynamics. They found that dynamic forces and tension fluctuations are responsible for the fluid state of tissues during development.
Researchers at Florida State University have visualized the motion of vortices in superfluid helium-4, a quantum fluid that exists at extremely low temperatures. The study revealed that as vortex tubes appeared, they moved randomly and rapidly away from their starting point, exhibiting superdiffusion.
Researchers found that populations of great tits can switch from one behavior to a more efficient alternative when group members are replaced with new birds. Fluid social groups were more likely to adopt the new behavior, allowing them to adapt to changing environments.
A UC Riverside study analyzed fourth-generation electronic cigarette pod atomizer design features, identifying toxic elements such as nickel, chromium, and iron. The findings suggest that these elements may accumulate in the environment and contribute to chemical pollution, highlighting the need for further research on e-cigarette safety.
The 2021 INF Standards of Practice expanded its guidance on needleless connectors to include anti-reflux technology, which causes the least amount of blood reflux. Anti-reflux needleless connectors can prevent catheter occlusions, failure, and infections by automatically eliminating unintentional blood reflux.
A new paradigm of liquid gating technology is presented, confining magnetic colloids in a porous matrix to probe mechanical properties in real-time. The system shows controllable fluid transport behavior, enabling applications such as dynamic and preprogrammed fluid transport, remote drug release, and microfluidic logic.
Researchers at Tohoku University developed a biobattery-powered device that can deliver large molecule pharmaceuticals and extract interstitial fluid. The microneedle array, smaller than a pinky nail, uses electroosmotic flow to increase drug transmission rates and extraction speed.
The CUHK research team found that viscoelasticity can be harnessed to control active matter's self-organisation, enabling the creation of self-driven devices. The discovery has implications for soft robotics, tissue engineering, and microbial physiology, as well as the dispersal of biofilms and gut microbiome.
A research team at POSTECH created a novel type of multiscale-porous anion exchange membrane to concentrate only cationic samples. This breakthrough allows for the easy fabrication of a cation-selective electrokinetic concentrator, streamlining manufacturing processes.
Researchers developed a template-free technique to fabricate flexible cilia mimicking biological functions, with applications in transporting substances into cells or directing fluids. The cilia's motion can be controlled by a magnet, and their length can be varied from 10 to 100 microns.
Researchers at OIST created a tiny setup with two microscopic cylinders to study fluid path selection around obstacles. The results revealed that the central gap size determines the fluid's choice between three available paths, offering insights into fluid transport in real-world systems.
Research from Purdue University and Oklahoma State University found that households purchasing food for children tend to buy more dairy products, including fluid milk and yogurt. This study provides insights into consumer behavior and can inform product marketing efforts and stakeholder decisions in the dairy industry.
The study incorporates fluid dynamics and roughness of joint surfaces to evaluate artificial hips, aiming to advance the design of more robust prostheses. The model could help clinicians personalize hip joints for patients depending on gender, weight, age, and gait variations.
Researchers investigated the flagellar arrangements of 15 unicellular species, revealing their impact on swimming speed and fluid flow architecture. Dinoflagellates were found to excel in both feeding and stealth behaviors due to their unique flagellar arrangement.
Researchers at KAUST have developed a computational algorithm to simulate ferrofluid behavior, enabling more accurate predictions of the liquid's response to a magnet. By simulating only the surface layer of the ferrofluid, they were able to reduce computational complexity and accurately reproduce complex spike patterns.
Scientists at the University of Birmingham have identified a potential new treatment for open angle glaucoma, a neurodegenerative disease affecting over 70 million people worldwide. ILB has been shown to normalise matrix deposition and lower intraocular pressure in a pre-clinical model, paving the way for anti-fibrotic therapies.
A study published in JAMA Network Open found that sweetened beverage sales rebounded quickly after the Cook County tax was repealed. Despite a significant decrease in consumption during the tax's four-month period, sales returned to pre-tax levels, suggesting that price point alone drove down demand.
Pittsburgh engineers build a two-dimensional sheet that spontaneously transforms into a three-dimensional gear, performing sustained work without external power. The innovation enables the development of self-powered machines for resource-poor environments.
Researchers at Texas A&M University are developing an advanced evaluation system that can interpret reservoir conditions in real-time using physics-enhanced machine-learning algorithms. This system will enable oil and gas operators to make data-driven decisions quickly, maximizing production in areas with positive responses to fracturi...
Researchers at UNICAMP conducted over 120 experiments to model Mars' long, slow-moving barchan dunes. They identified five basic types of interaction between the dunes, including chasing and merging mechanisms.
The Borexino detector successfully detected CNO neutrinos, revealing the final secret of our sun's fusion cycle. The detection confirms predictions that carbon and nitrogen catalyze hydrogen burning, releasing these 'ghost particles' that provide insight into the sun's interior.
Researchers at Heidelberg University observed a phase transition with six atoms, showing signatures of a superfluid state. This finding reveals the emergence of collective behavior in microscopic systems.
A new technology uses light to manipulate various liquids, reducing the risk of infection and contamination in medical testing. The device has great potential in fields like DNA analysis, proteomics, and clinical diagnosis, with applications in COVID-19 research.
In 2D simulations, researchers found that the pseudo-turbulence relationship changes within larger-scale flows in less viscous fluids. The team discovered an inverse energy cascade and a different mathematical relationship between flow energy and frequency.
Researchers from Sun Yat-Sen University, Harvard University, and Guangzhou University investigated viscoelastic flow mixing in microfluidics. They found that viscoelastic fluids exhibit transiently unstable flow patterns compared to Newtonian fluids, resulting in increased mixing.
MIT physicists create a perfect fluid in the laboratory, capturing its sound waves to measure viscosity. The results confirm that strongly interacting fermion gas behaves as a perfect fluid, with properties applicable to studying neutron stars and the early universe's plasma.
Researchers developed a microneedle-based technique to extract dermal interstitial fluid, which could provide valuable information for routine clinical monitoring and diagnostic testing. The study found that ISF contains unique compounds not found in blood samples, offering potential insights into skin exposure to products and pesticides.
Researchers at UC Riverside developed a simple, inexpensive way to measure drug dissolution that addresses shortcomings of existing methods. The technique uses a vibrating tube sensor to monitor the weight of individual pellets as they dissolve, providing accurate and continuous measurements.
The American Physical Society's Division of Fluid Dynamics awarded posters and videos on fluid motion phenomena, including COVID-19 spread and turbulent convection. The gallery highlights the science behind these topics through stunning visuals.
Researchers have discovered that cerebrospinal fluid (CSF) can swell immediately after an injury or stroke, leading to a more efficient clearance of toxic proteins from the brain. This breakthrough could lead to new insights into health and disease, as well as novel treatments for neurodegenerative disorders.