PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Groundbreaking mathematical proof: new insights into typhoon dynamics unveiled

This study was published ahead of official release on July 24th via the online edition of Commun. Pure Appl. Math.

Groundbreaking mathematical proof: new insights into typhoon dynamics unveiled
2023-09-29
(Press-News.org) In a remarkable breakthrough in the field of Mathematical Science, Professor Kyudong Choi from the Department of Mathematical Sciences at UNIST has provided an irrefutable proof that certain spherical vortices exist in a stable state. This groundbreaking discovery holds significant implications for predicting weather anomalies and advancing weather prediction technologies.

A vortex is a rotating region of fluid, such as air or water, characterized by intense rotation. Common examples include typhoons and tornadoes frequently observed in news reports. Professor Choi’s mathematical proof establishes the stability of specific types of vortex structures that can be encountered in real-world fluid flows.

The study builds upon the foundational Euler equation formulated by Leonhard Euler in 1757 to describe the flow of eddy currents. In 1894, British mathematician M. Hill mathematically demonstrated that a ball-shaped vortex could maintain its shape indefinitely while moving along its axis.

Professor Choi’s research confirms that Hill’s spherical vortex maximizes kinetic energy under certain conditions through the application of variational methods. By incorporating functional analysis and partial differential equation theory from mathematical analysis, this study extends previous investigations on two-dimensional fluid flows to encompass three-dimensional fluid dynamics with axial symmetry conditions.

One notable feature identified by Hill is the presence of strong upward airflow at the front of the spherical vortex—an attribute often observed in phenomena like typhoons and tornadoes. Professor Choi’s findings serve as a starting point for further studies involving measurements related to residual time associated with these ascending air currents.

“Research on vortex stability has gained international attention,” stated Professor Choi. “[A]nd it holds long-term potential for advancements in today’s weather forecasting technology.”

Supported by funding from Korea Research Foundation under the Ministry of Science and ICT as well as UNIST, this study was published ahead of official release on July 24th via the online edition of Communications on Pure and Applied Mathematics.

Journal Reference
Kyudong Choi, “Stability of Hill’s spherical vortex,” Commun. Pure Appl. Math., (2023).

END

[Attachments] See images for this press release:
Groundbreaking mathematical proof: new insights into typhoon dynamics unveiled Groundbreaking mathematical proof: new insights into typhoon dynamics unveiled 2

ELSE PRESS RELEASES FROM THIS DATE:

Teams invent a new metallization method of modified tannic acid photoresist patterning

Teams invent a new metallization method of modified tannic acid photoresist patterning
2023-09-29
The micro/nano metal pattern formation is a key step in the assembly of various devices. However, ex situ approaches of metal patterning limited their industrial applications due to the poor stability and dispersion of metal nanoparticles. The in situ electroless deposition after lithography patterning may be a better choice for avoiding the growth and aggregation of metal particles in the polymers. Tannic acid is rich in natural products, having an adjacent tri-hydroxyl structure, which can realize the in situ reduction of metal ions on the photoresist pattern. A team of scientists ...

MoMFs could be central to liver regeneration

MoMFs could be central to liver regeneration
2023-09-29
The liver is a vital organ that plays a role in many essential functions, including digestion, detoxification, and metabolism. When the liver is damaged, it has the remarkable ability to regenerate itself. However, the process of liver regeneration is not fully understood. A critical aspect of liver regeneration is removing dead tissue and necrotic lesions. In a recent study published in the Journal of Clinical Investigation, Feng et al. showed that monocyte-derived macrophages (MoMFs) play a crucial role in this process. MoMFs are a type of white blood cell that is recruited to the liver in response to injury. Once in the liver, MoMFs engulf dead cells ...

A lethal parasite’s secret weapon: Infecting non-immune cells

2023-09-29
COLUMBUS, Ohio – The organisms that cause visceral leishmaniasis, a potentially deadly version of the parasitic disease that most often affects the skin to cause disfiguring disease, appear to have a secret weapon, new research suggests: They can infect non-immune cells and persist in those uncommon environments. Researchers found the Leishmania donovani parasites in blood-related stem cells in the bone marrow of chronically infected mice – precursor cells that can regenerate all types of cells in the blood-forming system. The finding may help explain why some people who develop visceral leishmaniasis, which is ...

Ball milling provides high pressure benefits to battery materials

2023-09-29
Cheaper, more efficient lithium-ion batteries could be produced by harnessing previously overlooked high pressures generated during the manufacturing process. Scientists at the University of Birmingham have discovered that routine ball milling can cause high pressure effects on battery materials in just a matter of minutes, providing a vital additional variable in the process of synthesizing battery materials. The research (part of the Faraday Institution funded CATMAT project), led by Dr Laura Driscoll, Dr Elizabeth Driscoll and Professor Peter Slater at the University of Birmingham is published in RSC Energy Environmental Science. The use ...

Congenital Heart Surgeons' Society (CHSS) and fourteen professional organizations announce recommendations for performing pediatric heart surgery in US

2023-09-29
September 29, 2023, Cincinnati, OH — A set of recommendations to address the known variation in outcomes at US congenital heart surgery centers has been endorsed by 15 collaborating societies led by the Congenital Heart Surgeons' Society (CHSS). The guidelines will appear in “Recommendations for Centers Performing Pediatric Heart Surgery in the United States," to be co-published in the World Journal for Pediatric and Congenital Heart Surgery, Annals of Thoracic Surgery, and Journal of Thoracic and Cardiovascular Surgery. “In ...

Mouthwash for dogs: water additive with pomegranate helps to keep canine teeth healthy

2023-09-29
Periodontal disease is one of the most common canine diseases, affecting at least 80% of dogs aged three and over. Periodontal disease begins as gingivitis, where gums become red and inflamed, and may bleed. Untreated, the disease can progress to periodontitis, where the alveolar bone is progressively damaged so that teeth may loosen or fall out. In turn, periodontitis is a risk factor for other diseases like cardiovascular and lung disease. A major cause of periodontal disease is poor oral hygiene, ...

Racial/ethnic minority patients may be less likely than white patients to receive palliative care during breast cancer treatment

2023-09-29
ORLANDO, Fla. – Despite a steady increase in palliative care utilization from 2004 to 2020, non-Hispanic Black, Hispanic, and Asian or Pacific Islander patients with metastatic breast cancer were less likely to receive palliative care than non-Hispanic white patients, according to results presented at the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved, held September 29-October 2, 2023. Palliative care consists of treatments or procedures intended ...

Spanish-speaking men in sexual minority groups may lack knowledge about cancers linked to HPV

2023-09-29
ORLANDO, Fla. – A study found multiple gaps in awareness and knowledge about the connection between the human papillomavirus (HPV) and several types of cancer among Hispanic and Latino men who identified as sexual minorities, according to results presented at the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved, held September 29-October 2, 2023. “Sexual minority men are a population group at higher risk for HPV infections and ...

Structural racism may play a role in increased cancer mortality rates among racial minorities

2023-09-29
ORLANDO, Fla. – Structural racism was associated with increased county-level cancer mortality rates among minority populations compared with whites, according to results presented at the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved, held September 29-October 2, 2023. “Applying measures that attempt to capture the multiple and compounding ways racism presents in policies, laws, and practices at a population level shows how racism manifests beyond interpersonal interactions to negatively impact cancer outcomes,” said presenter Joelle N. Robinson-Oghogho, ...

Racial and ethnic minorities may be less willing than others to participate in clinical trials

2023-09-29
ORLANDO, Fla. – A survey conducted in one cancer center’s catchment area found that while a majority of respondents would be willing to participate in a clinical trial, members of racial and ethnic minority groups were significantly less likely to participate than non-Hispanic whites, according to results presented at the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved, held September 29-October 2, 2023. Reasons to participate ...

LAST 30 PRESS RELEASES:

NIH awards Coast-to-Coast Consortium $5.6 million for All of Us Research Program

Ben-Gurion University scientist hunts for drug candidate to treat brain tumors

New Health Blueprint maps healthier future for rural, underserved Southwest Virginia

Survival benefit associated with participation in clinical trials of anticancer drugs

Expanding on the fundamental principles of liquid movement

Chemical Insights Research Institute partners with Duke University and the East-West Center to examine dust and ash from devastating Hawai’ian wildfires

NCCN publishes new resource for patients with intestinal cancer type most have never heard of before diagnosis

Subduction zone splay faults compound hazards of great earthquakes

Record low Antarctic sea ice ‘extremely unlikely’ without climate change

After hundreds of years, study confirms Bermuda now home to cownose rays

Scientists uncover promising treatment target for resistant brain cancer

Revolutionizing cancer treatment by intracellular protein delivery using hybrid nanotubes

Chemist Julian West makes C&EN magazine’s ‘Talented 12’ list

Robot-phobia could exasperate hotel, restaurant labor shortage

Study offers new detail on how COVID-19 affects the lungs

Body’s ‘message in a bottle’ delivers targeted cancer treatment

1 in 4 parents say their teen consumes caffeine daily or nearly every day

What makes some brown algae shimmer and others not?

Seeking stronger steel, systematic look at 120 combinations of alloy elements provides clues

Tricking the Brain’s inner GPS: Grid cells responses to the illusion of self-location

Gallbladder cancer rises among Black Americans as cases decline in other groups

Biomarker for gastric cancer and other cancer studies set for digestive disease week

Endoscopic studies presented at Digestive Disease Week

Hunger hormone, antibiotic-induced weight gain, and sleep and digestive health explored at Digestive Disease Week

Innovative 3D printing could revolutionise treatment for cataracts and other eye conditions

Rigid approach to teaching phonics is ‘joyless’ and is failing children, experts warn

Meerkat chit-chat

Extreme heat associated with children’s asthma hospital visits

Poor access to in-home nursing for medically complex children quantified

Hormone Replacement Therapy (HRT) may improve pulmonary hypertension and right ventricular function

[Press-News.org] Groundbreaking mathematical proof: new insights into typhoon dynamics unveiled
This study was published ahead of official release on July 24th via the online edition of Commun. Pure Appl. Math.