A systematic procedure is introduced for modeling charge-neutral non-polar surfaces of ionic minerals containing polyatomic anions. By integrating distance- and charge-based clustering to identify chemical species within the mineral bulk, our pipeline, PolyCleaver, renders a variety of theoretically viable surface terminations. As a demonstrative example, this approach was applied to forsterite (Mg2SiO4), unveiling a rich interface landscape based on interactions with formaldehyde, a relevant multifaceted molecule, and more particularly in prebiotic chemistry. This high-throughput method, going beyond techniques traditionally applied in the modeling of minerals, offers new insights into the potential catalytic properties of diverse surfaces, enabling a broader exploration of synthetic pathways in complex mineral systems.

The capillary wave model of a liquid surface predicts both the X-ray specular reflection and the diffuse scattering around it. A quantitative method is presented to obtain the X-ray reflectivity (XRR) from a liquid surface through the diffuse scattering data around the specular reflection measured using a grazing incidence X-ray off-specular scattering (GIXOS) geometry at a fixed horizontal offset angle with respect to the plane of incidence. With this approach the entire Qz-dependent reflectivity profile can be obtained at a single, fixed incident angle. This permits a much faster acquisition of the profile than with conventional reflectometry, where the incident angle must be scanned point by point to obtain a Qz-dependent profile. The XRR derived from the GIXOS-measured diffuse scattering, referred to in this paper as pseudo-reflectivity, provides a larger Qz range compared with the reflectivity measured by conventional reflectometry. Transforming the GIXOS-measured diffuse scattering profile to pseudo-XRR opens up the GIXOS method to widely available specular XRR analysis software tools. Here the GIXOS-derived pseudo-XRR is compared with the XRR measured by specular reflectometry from two simple vapor–liquid interfaces at different surface tension, and from a hexadecyltri­methyl­ammonium bromide monolayer on a water surface. For the simple liquids, excellent agreement (beyond 11 orders of magnitude in signal) is found between the two methods, supporting the approach of using GIXOS-measured diffuse scattering to derive reflectivities. Pseudo-XRR obtained at different horizontal offset angles with respect to the plane of incidence yields indistinguishable results, and this supports the robustness of the GIXOS-XRR approach. The pseudo-XRR method can be extended to soft thin films on a liquid surface, and criteria are established for the applicability of the approach.

In an August 18 letter, the U.S. Department of the Interior’s Office of Surface Mining Reclamation and Enforcement informed the National Academies of Sciences, Engineering, and Medicine that it should cease all work on a study of the potential health risks for people living near surface coal mine sites in Central Appalachia.

Company leverages its nanofabrication technology to produce robust SERS substrates for R&D and commercial use

n-tech projects that smart antibacterial and antiviral products will reach US$1.3 billion by 2025 driven by efforts to combat Covid-19 and provide safer workplace, health care and improved public health

The newly translated cookbook by Matay de Mayee, "The Oldest Kitchen in the World," is both a vital preservation of ancient Assyrian culinary traditions and a tribute to the origins of Middle Eastern cuisine.

A comprehensive asphalt additive online resource designed to keep DOTs, cities, counties, producers, and agencies abreast of the latest updates and insights in asphalt additives. tailored to facilitate understanding and action of the IIJA..

"Beneath The Surface" became a #1 Best Seller on launch day!

ETSI launches a new group on Reconfigurable Intelligent Surfaces

Sophia Antipolis, 4 October 2021

Improving network performance with cost-effective, low-power and sustainable technology for future wireless systems

ETSI, which produces globally applicable standards for ICT, has launched a new Industry Specification Group on Reconfigurable Intelligent Surfaces (ISG RIS). The group has been created to review and establish global standardization for RIS technology.

Read More...

Sophia Antipolis, 16 May 2023

ETSI is pleased to announce the release of the first Group Report developed by its Reconfigurable Intelligent Surface Industry Specification Group. The ETSI Report ETSI GR RIS-001 identifies and defines relevant RIS use cases, with corresponding general Key Performance Indicators (KPIs). It also describes deployment scenarios as well as potential requirements for each identified use case, to enable interoperability with existing and upcoming wireless technologies and networks.

Read More...

Event Begins: Wednesday, November 13, 2024 4:00pm
Location: East Hall
Organized By: Algebraic Geometry Seminar - Department of Mathematics

Joint work with Ailsa Keating (Cambridge). We prove the homological mirror symmetry conjecture of Kontsevich for K3 surfaces in the following form: The Fukaya category of a projective K3 surface is equivalent to the derived category of coherent sheaves on the mirror, which is a K3 surface of Picard rank 19 over the field of formal Laurent series. This builds on prior work of Seidel (who proved the theorem in the case of the quartic surface), Sheridan, Lekili--Ueda, and Ganatra--Pardon--Shende.

I will try to keep prerequisites to a minimum, in particular, I will not assume prior knowledge of the Fukaya category.

A chemical proteomics approach for global mapping of functional lysines on cell surface of living cell  Nature.com

3D printing is a revolutionary technology that enables the creation of intricate and complex designs by adding material layer by layer. The final surface roughness of the printed part is critical to its overall performance and can have a major impact on its functionality.

Olympus’ high-quality optics help eliminate many outliers before they occur. The quality of the resulting measurement is evident in multiscale analysis down to the finest scales.

Our Introduction to Surface Roughness Measurement guidebook is an excellent initiation to noncontact surface roughness measurement. It offers practical information on various topics to help make roughness measurement easy and efficient.

How does the surface texture affect the friction between two dry parallel sliding surfaces? It turns out that this problem has challenged some of the greatest minds in science and engineering.

Mitutoyo America Corporation announced the release of our innovative SM1008S, the first non-contact line-laser sensor in the Mitutoyo Surface Measure product line.

This article discusses the connection between surface finish and factors like friction, wear, and fatigue life. It explores how precise surface finish measurements improve product reliability and analyzes the evolving measurement technologies.

Natalie Silvanovich and Kim Carter discuss reducing the attack surface of the software that Engineers are creating today. Code sharing, third-party code, Developer workflow, and a collection of 0 day bugs are all discussed.

This week for our weekly How-To’s powered by KnowHow, we learn how to lay hard-surface floor protection.

Requirements for intelligent surface-defect detection service in industrial production line

In recent times, there has been a greater focus on hygiene in the workplace, likely spurred on by the COVID pandemic. While some germs are completely harmless, others can cause unpleasant illnesses.

Location: Electronic Resource- 

Location: Electronic Resource- 

Location: Electronic Resource- 

Location: Engineering Library- TA455.P58V65 2016

Shortly after President-elect Donald Trump appointed Tom Homan as “border czar,” the immigration hardliner’s hilarious 2019 smackdown of Democratic Rep. Alexandria Ocasio-Cortez of New York went viral on social media. […]

The post Flashback: Video of Tom Homan Taking Down AOC Resurfaces, Showing Why Trump Picked Him appeared first on The Western Journal.

Junyi Xie
J. Amer. Math. Soc. 38 (), 1-62.
Abstract, references and article information

EJ Blanchette-Mackie
Jun 1, 1995; 36:1211-1226
Articles

Robert W. Mahley
Jan 1, 1999; 40:1-16
Reviews

N. R. Ikonomov and S. P. Suetin
Trans. Moscow Math. Soc. 83 (), 33-54.
Abstract, references and article information

Pierre Lairez, Eric Pichon-Pharabod and Pierre Vanhove
Math. Comp. 93 (), 2985-3025.
Abstract, references and article information

Sangsan Warakkagun
Conform. Geom. Dyn. 28 (), 115-130.
Abstract, references and article information

Jong In Han and Sijong Kwak
Trans. Amer. Math. Soc. 377 (), 5561-5581.
Abstract, references and article information

Víctor González-Aguilera, Alvaro Liendo, Pedro Montero and Roberto Villaflor Loyola
Trans. Amer. Math. Soc. 377 (), 5483-5511.
Abstract, references and article information

Luiz Ricardo Abreu Melo
Proc. Amer. Math. Soc. 152 (), 5373-5380.
Abstract, references and article information

Neelarnab Raha
Proc. Amer. Math. Soc. 152 (), 5067-5081.
Abstract, references and article information

The NISAR satellite, a joint NASA-ISRO Earth observation mission launching in 2025, will provide precise data on shifts in Earth’s surface, focusing on high-risk areas. Using advanced radar technology, the satellite aims to support natural disaster response and infrastructure monitoring by tracking subtle movements in regions prone to earthquakes and landslides. With each organisation contributing specialised radar systems, the collaboration is a significant leap forward in space-based Earth monitoring.

State government agencies, county and municipal governments, and conservation districts can now submit proposals to the Delaware Department of Natural Resources and Environmental Control and the Delaware Division of Public Health to receive matching grants for wastewater, surface water and drinking water project planning.

Delaware county and municipal governments, conservation districts, and estuary programs can now submit proposals to DNREC through Aug. 21 to receive matching grants for surface water project planning.

The Department of Natural Resources and Environmental Control released findings from DNREC’s comprehensive study on PFAS (per- and polyfluoroalkyl substances) in surface waters across Delaware.

Droplets of fluid have been known to hover above a hot surface, but a new experiment suggests the same can happen to tiny jets of liquid too

Droplets of fluid have been known to hover above a hot surface, but a new experiment suggests the same can happen to tiny jets of liquid too

In between two spacecraft visiting Jupiter’s moon Io, a volcano spreading material over hundreds of kilometres has appeared

A judge recused himself Tuesday from presiding over Arizona's fake electors case after an email surfaced in which he told fellow judges to speak out against attacks on Democratic Vice President Kamala Harris' campaign for the presidency.

A new study suggests there could be water miles under the dusty surface of Mars, with enough water to fill a global-sized ocean a mile deep.

"If Jupiter doesn’t have a surface, what does it have? "

Los Angeles CA (SPX) Nov 09, 2024
Data from NISAR will improve our understanding of such phenomena as earthquakes, volcanoes, and landslides, as well as damage to infrastructure. Earth's surface is in a state of continuous motion, although often unnoticed. Scientists have utilized satellite and ground-based technology to observe movements linked to geological events such as earthquakes, landslides, and volcanic activity. A

Joe Anderson, product and promotional marketing manager at Harland, explores the role of surface preparation in the application of hydrophilic and hydrophobic coatings.