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

Better simulations of neutron scattering

2023-03-17
(Press-News.org) A new simulation approach named eTLE aims to improve the precision of a primary tool for estimating neutron behaviours in 3D space. This study examines the approach in detail – validating its reliability in predicting the scattering of neutrons in crystalline media.

Tripoli-4® is a tool used by researchers to simulate the behaviours of interacting neutrons in 3D space. Recently, researchers developed a new ‘next-event estimator’ (NEE) for Tripoli-4®. Named eTLE, this approach aims to increase Tripoli-4®’s precision using Monte Carlo simulations: a class of algorithms which solve problems by repeatedly estimating the characteristics of a whole population of neutrons, by selecting random groups of individuals. Through new research published in EPJ Plus, a team led by Henri Hutinet at the French Alternative Energies and Atomic Energy Commission implement and validate eTLE’s reliability for the first time.

Since the production of neutrons is a key element of nuclear fission reactions, this enhanced precision could ultimately help to improve the safety of nuclear reactors. The success of eTLE hinges on the principle that the transport and attenuation of neutrons through a medium is mathematically predictable. So far, the use of NEEs to predict this transport has been hindered by their treatment of neutrons as simple gases of interacting particles. In crystalline media, this causes the angles they follow as they scatter from each other to take on discrete values – forbidding certain angles which may be necessary to understanding the neutrons’ overall behaviour.

In their study, Hutinet’s team examined the outcomes of eTLE’s Monte Carlo-based approach to estimating neutron behaviours. To validate their findings, they used a classical, unbiased NEE as a benchmark for studying several scattering neutrons inside crystalline media – including graphite and beryllium. Their results revealed a strong agreement between these classical estimators and eTLE: representing a huge improvement compared with previous NEE approaches for Tripoli-4®. By removing the need for discrete scattering angles, the team’s work could now pave the way for nuclear reactor operators to predict neutron behaviours far more accurately in the future.

Reference: Hutinet, H., Le Loirec, C., Mancusi, D. et al. Neutron elastic scattering kernel for Monte Carlo next-event estimators in Tripoli-4®. Eur. Phys. J. Plus 138, 189 (2023). https://doi.org/10.1140/epjp/s13360-023-03787-8

END


ELSE PRESS RELEASES FROM THIS DATE:

New gene-editing technique reverses vision loss in mice

New gene-editing technique reverses vision loss in mice
2023-03-17
Researchers in China have successfully restored the vision of mice with retinitis pigmentosa, one of the major causes of blindness in humans. The study, to be published March 17 in the Journal of Experimental Medicine, uses a new, highly versatile form of CRISPR-based genome editing with the potential to correct a wide variety of disease-causing genetic mutations. Researchers have previously used genome editing to restore the vision of mice with genetic diseases, such as Leber congenital amaurosis, that affect ...

Machine intelligence and humanity benefit from ‘spiral’ of mutual learning, says AI researcher and proponent of ‘cognitive physics’

Machine intelligence and humanity benefit from ‘spiral’ of mutual learning, says AI researcher and proponent of ‘cognitive physics’
2023-03-17
Deyi Li from the Chinese Association for Artificial Intelligence believes that humans and machines have a mutually beneficial relationship. His paper on machine intelligence, which was published Feb. 15 in Intelligent Computing, a Science Partner Journal, builds on five groundbreaking works by Schrödinger, the father of quantum mechanics, Turing, the father of artificial intelligence, and Wiener, the father of cybernetics. Schrödinger and beyond: Machines can think and interact with the world as time goes by. ...

Miracle math determines the dynamically coordinated regulation of edge velocity by Rho GTPases

Miracle math determines the dynamically coordinated regulation of edge velocity by Rho GTPases
2023-03-17
Ikoma, Japan – Rho GTPases have a crucial role in the orchestration of cell movements. Cells use Rho GTPases to coordinate cytoskeletal reorganization in dynamically changing environments. Among these RhoGTPases, Cdc42 and Rac1 promote cytoskeletal formation, whereas RhoA is involved in myosin II-mediated cytoskeletal retraction and formation. Simultaneous live observations of multiple GTPase activities and cell morphology changes by specific biosensors and the resulting spatiotemporal data might help to determine the coordinated regulation of ...

The most beautiful strongly bound dibaryon

The most beautiful strongly bound dibaryon
2023-03-17
Dibaryons are the subatomic particles made of two baryons. Their formations through baryon-baryon interactions play a fundamental role in big-bang nucleosynthesis, in nuclear reactions including those within stellar environments, and provide a connection between nuclear physics, cosmology and astrophysics. Interestingly, the strong force, which is the key to the existence of nuclei and provides most of their masses, allows formations of numerous other dibaryons with various combinations of quarks. However, we do not observe them abound -- deuteron is the only known stable dibaryon. To resolve this apparent dichotomy, it is essential to investigate ...

New machine-learning approach enables to identify one molecule in a billion molecules selectively with graphene sensors

New machine-learning approach enables to identify one molecule in a billion molecules selectively with graphene sensors
2023-03-17
Graphene’s 2D nature, single molecule sensitivity, low noise, and high carrier concentration have generated a lot of interest in its application in gas sensors. However, due to its inherent non-selectivity, and huge p-doping in atmospheric air, its applications in gas sensing are often limited to controlled environments such as nitrogen, dry air, or synthetic humid air. While humidity conditions in synthetic air could be used to achieve controlled hole doping of the graphene channel, this does not adequately mirror the situation ...

ETRI introduces AI tutor who teaches foreign language reading

ETRI introduces AI tutor who teaches foreign language reading
2023-03-17
The Electronics and Telecommunications Research Institute(ETRI) has developed a reading comprehension education AI technology that allows you to learn foreign language listening, speaking, and reading by talking to an artificial intelligence (AI) tutor. It is expected to be of great help in the spread of AI-based language education services. The Electronics and Telecommunications Research Institute(ETRI) introduced a reading comprehension AI tutor, an artificial intelligence technology for reading education, that introduced deep learning-based dialog processing technology to reading comprehension education for the first time in the world. Through ...

Burt's Bees nature-based products improve photodamaged and hyperpigmented facial skin

2023-03-17
DURHAM, N.C., March 17, 2023 – Burt’s Bees, the #1 dermatologist recommended natural skin care brand,* announced its latest research findings on the benefits of a topical bakuchiol-containing sunscreen in treating redness and pigmentation of photodamaged facial skin. Burt’s Bees also published research findings on a topical treatment in improving the appearance of post-inflammatory hyperpigmentation associated with acne. These studies, available online via ePoster, have been developed for the American Academy of Dermatology 2023 Annual Meeting (AAD) Mar. 17–21, 2023, ...

Resistant bacteria are a global problem. Now researchers may have found the solution

2023-03-17
Staphylococcus aureus. You may have had it in connection with a wound infection. In most cases, it will pass without treatment, while severe cases may require antibiotics, which kills the bacteria. This is the case for the majority of the population. In fact, many of us – though we feel perfectly fine – carry staphylococci in the nose, a good, moist environment in which the bacteria thrive. However, more and more staphylococci are becoming resistant to antibiotics (also known as multi resistant staphylococcus aureus or MRSA), and these infections can be difficult to treat. “Antibiotics resistance ...

An elegant new orchid hiding in plain sight

An elegant new orchid hiding in plain sight
2023-03-17
It is extremely rare for a new plant species to be discovered in Japan, a nation where flora has been extensively studied and documented. Nevertheless, Professor SUETSUGU Kenji and his associates recently uncovered a stunning new species of orchid whose rosy pink petals bear a striking resemblance to glasswork (Fig. 1). Since it was initially spotted near Hachijo Island in Tokyo Prefecture, the new species has been given the name Spiranthes hachijoensis. Interestingly, it can be found in familiar environments such as lawns and parks, and even in private gardens and on balconies. This research suggests ...

Investigating the effects on amide-to-ester substitutions on membrane permeability of cyclic peptides

Investigating the effects on amide-to-ester substitutions on membrane permeability of cyclic peptides
2023-03-17
Cyclic peptides often exhibit low membrane permeability which can be significantly improved via amide-to-ester substitutions—as demonstrated by researchers from Tokyo Institute of Technology (Tokyo Tech). The utilization of substitutions shown in this study can be used to develop cyclic peptides with high membrane permeability and oral bioavailability for clinical and therapeutic applications. Interest in cyclic peptides, a class of organic molecules, has reached a new high recently. Their ability as inhibitors has made them ...

LAST 30 PRESS RELEASES:

A unified account of Darwinism’s varieties

Marketers can manage 'feature creep'

Intermittent fasting shows promise in improving gut health, weight management

Scientists identify gene that could lead to resilient ‘pixie’ corn

Utilizing medical assistants to manage patient portal messages shown to support practice and physician efficiency

Study shows clinic continuity associated with reduced hospital and emergency visits

Recognizing the range of experiences among individuals of Latino, Hispanic, and/or Spanish origin is an essential step toward health equity

study reveals decline in reported medicare outpatient procedures by family physicians amid an aging population

COVID-19 pandemic leads to drop in breast cancer screenings, especially among older and racial minority women

Translating the Surgeon General’s framework on social isolation and loneliness to actionable steps in primary care

Point/counterpoint: Is prediabetes overdiagnosed?

Primary care clinics can help low-income families receive nutritional support benefits

The wall of evidence for continuity of care

Parents of children with serious illness from Somali, Hmong, and Latin American communities desire better communication and support in pediatric health care

Primary care can improve hygienic practices while reducing waste

HKUST researchers enhance performance of eco-friendly cooling applications by developing sustainable strategy to manipulate interfacial heat transfer

Variations in medical assistant to primary care clinician staffing ratios may reflect differences in practice ownership and organizational culture

Better disciplinary structures in schools can help reduce hate speech directed against Asian American students

Bringing back an ancient bird

Wistar research identifies mechanisms for selective multiple sclerosis treatment strategy

Fatherhood’s hidden heart health toll

The importance of integrated therapies on cancer: Silibinin, an old and new molecule

Texas A&M-led team creates first global map of seafloor biodiversity activity

Light therapy increases brain connectivity following injury

Power imbalance in health care reveals impact of race and role on team dynamics and DEI efforts

NRG Oncology appoints new vice-chairs for their patient advocate committee

Why do Dyeing poison frogs tap dance?

UC Irvine study reveals circadian clock can be leveraged to enhance cancer immunotherapy

Cell-targeting technology allows researchers to isolate neuronal subpopulations and link them to behavioral states

When should you neuter or spay your dog?

[Press-News.org] Better simulations of neutron scattering