New study provides a solution for engineering cellular materials
2021-07-13
(Press-News.org) A new study by a Swansea University academic has announced a new mathematical formula that will help engineers assess the point at which cellular materials, which are used a wide range of applications ranging from aerospace to the construction industry, will bend and buckle.
Professor Sondipon Adhikari, of the College of Engineering has published his findings in the Proceedings of the Royal Society A. The study details a formula that can calculate the elastic instability of cellular material, in this case hexagonal lattice material, also known as the honeycomb which is commonly used in the production of lightweight structures such as energy absorbent foams, mechanical and acoustic metamaterials and next-generation stent technology.
Professor Adhikari's formula, which is a simple closed-form expression, will help engineers make quick design calculations and can also be used to benchmark future experimental and numerical studies.
Professor Adhikari said: "This paper is the result of two years of sustained research. The simple closed-form expression for critical buckling stress can be viewed as the extension of the classical Euler's critical load formula, first derived in 1757 which calculated the stress point at which a beam will suddenly bend and buckle. This new expression is a 21st century solution for engineering cellular materials that will be used in advanced engineering applications now and in the future."
INFORMATION:
ELSE PRESS RELEASES FROM THIS DATE:
2021-07-13
Arlington, VA (July 13, 2021) -- Hospitals and other healthcare facilities should require employees to be vaccinated against COVID-19, according to a consensus statement by the Society for Healthcare Epidemiology of America (SHEA) and six other leading organizations representing medical professionals working in infectious diseases, infection prevention, pharmacy, pediatrics, and long-term care. The paper specifies exemption for those with medical contraindications, and some others circumstances in compliance with federal and state laws.
"The COVID-19 vaccines in use in the United States have been shown to be safe and ...
2021-07-13
Ashalcha oilfield in Tatarstan is one of the most popular locations to study the extraction of heavy oils. In particular, Kazan Federal University's In-Situ Combustion Lab has been working there for a few years.
Senior Research Associate Irek Mukhamatdinov explains, "On average, there are one sulfur and one nitrogen atom and five oxygen atoms per resin molecule. In the course of transformation under the action of a catalytic agent and a hydrogen donor, the content of heteroatoms (sulfur, nitrogen and oxygen) in a much larger number of structural blocks of resin molecules decreases. Resin molecules are mainly represented by mono- and two-block structures with a predominance of aromatic rings over naphthenic ones, with long paraffin chains."
His ...
2021-07-13
Irritable bowel syndrome (IBS) is, unfortunately, a common gastrointestinal disorder. Affecting between 10 to 15% of the global population, IBS negatively impacts the lives of those who have it by frequently causing a variety of symptoms, including abdominal pain, bloating, and bouts of diarrhea or constipation. Despite the high worldwide prevalence of IBS, gastroenterologists still haven't pinpointed its causes, as there seems to be no obvious structural or biochemical abnormalities associated with the disorder. In a similar vein, there is still much debate on effective diagnostic criteria and treatment options.
Considering it has been hard for scientists and doctors to reach a consensus on best practices regarding IBS, it's important that all the latest information that has been gathered ...
2021-07-13
A blood test that quantifies the protein ACE2, the cellular protein which allows entry of the coronavirus into cells, as well as ACE2 fragments, produced as a result of interaction with the virus, could be a simple and effective method for monitoring SARS-CoV-2 infection, according to a study led by Javier Sáez-Valero, from the UMH-CSIC Neurosciences Institute in Alicante, published in FASEB Journal.
This study, carried out during the first wave of the pandemic, found that patients with COVID-19, in the acute phase of infection, have significantly reduced plasma levels of the full-length ACE2 ...
2021-07-13
Amsterdam, July 13, 2021 - Cerebral palsy (CP) is one of the most common developmental movement disorders in children. It is associated with complex healthcare needs and impacts development and function. In this END ...
2021-07-13
ITHACA, N.Y. - A Cornell University-led team has calculated that by the year 2050, vehicle electrification, driverless cars and ride sharing could slash U.S. petroleum consumption by 50% and carbon dioxide emissions by 75% while simultaneously preventing 5,500 premature deaths and saving $58 billion annually.
The researchers projected vehicle stocks, distance traveled, energy usage and carbon dioxide emissions in the continental U.S. through 2050 and quantified the impacts of changing emissions on concentrations of fine particulate matter in the atmosphere, as well as ensuing health and economic benefits of populations in 10 major metropolitan areas.
Their simulations ...
2021-07-13
In the United States, massive volumes of individual-level data, called "big data," are used for a variety of reasons, including marketing, intelligence gathering and political campaigns. Big data are also vital to public health efforts, such as improving population health, informing personalized medicine and transforming biomedical research. However, it can be challenging to use big data for health applications due to laws and concerns about individual privacy.
Federal and state data-protection laws exist to protect individual privacy, and they vary depending on the type of data, who is using it and the data's intended purpose. The complexity and differences in these data-protection laws can make it difficult for researchers to use big data ...
2021-07-13
Researchers have conducted a global study on the effectiveness of recently established protected areas in preventing forest loss
The study explores protected area performance by countries, with South Africa, Cambodia, Latvia, Guatemala, Uruguay, Brazil and New Zealand leading the way in the effectiveness of their protected areas
The research team estimated that overall, protected areas established between 2000-2012 prevented 86,062 square kilometers of forest loss
If all countries had protected areas that were as effective as their top-performing neighbor, then ...
2021-07-13
A clinic to help transgender young people and their families receive quicker support has boosted mental health, family functioning and quality of life, according to a new study.
The research, led by the Murdoch Children's Research Institute (MCRI) and published in Pediatrics, found the clinic in Melbourne led to lower levels of depression and anxiety due to transgender young people being able to access help 10 months sooner.
The study involved 142 patients who completed questionnaires before and after attending the First Assessment Single Session Triage (FASST) clinic ...
2021-07-13
A study conducted by researchers from the UPF Culture and Socio-Ecological Dynamics research group (CaSEs) and the University of Leicester (UK) has provided a highly dynamic image surrounding the use and importance of hitherto unknown wild plant resources at the Neolithic site of Çatalhöyük (Anatolia, Turkey). The researchers carried out their work combining the analysis of microbotanical remains and use-wear traces in various stone implements recovered from the site, which in the past hosted one of mankind's first agricultural societies.
The researchers carried out their work combining the analysis of microbotanical remains and use-wear traces in various stone implements recovered from ...
LAST 30 PRESS RELEASES:
[Press-News.org] New study provides a solution for engineering cellular materials
