Hydrocarbon systems  British Geological Survey

The simulation of EXAFS spectra of thin films via ab initio methods is discussed. The procedure for producing the spectra is presented as well as an application to a two-dimensional material (WSe2) where the effectiveness of this method in reproducing the spectrum and the linear dichroic response is shown. A series of further examples in which the method has been employed for the structural determination of materials are given.

A 1D imaging soft X-ray spectrometer installed on the small quantum systems (SQS) scientific instrument of the European XFEL is described. It uses movable cylindrical constant-line-spacing gratings in the Rowland configuration for energy dispersion in the vertical plane, and Wolter optics for simultaneous 1D imaging of the source in the horizontal plane. The soft X-ray fluorescence spectro-imaging capability will be exploited in pump–probe measurements and in investigations of propagation effects and other nonlinear phenomena.

In crystallographic texture analysis, ensuring that sample directions are preserved from experiment to the resulting orientation distribution is crucial to obtain physical meaning from diffraction data. This work details a procedure to ensure instrument and sample coordinates are consistent when analyzing diffraction data with a Rietveld refinement using the texture analysis software MAUD. A quartz crystal is measured on the HIPPO diffractometer at Los Alamos National Laboratory for this purpose. The methods described here can be applied to any diffraction instrument measuring orientation distributions in polycrystalline materials.

This work introduces a completely rewritten version of the program RMCProfile (version 7), big-box, reverse Monte Carlo modelling software for analysis of total scattering data. The major new feature of RMCProfile7 is the ability to refine multiple phases simultaneously, which is relevant for many current research areas such as energy materials, catalysis and engineering. Other new features include improved support for molecular potentials and rigid-body refinements, as well as multiple different data sets. An empirical resolution correction and calculation of the pair distribution function as a back-Fourier transform are now also available. RMCProfile7 is freely available for download at https://rmcprofile.ornl.gov/.

Small-angle X-ray and neutron scattering (SAXS and SANS) patterns from certain semicrystalline polymers and liquid crystals contain discrete reflections from ordered assemblies and central diffuse scattering (CDS) from uncorrelated structures. Systems with imperfectly ordered lamellar structures aligned by stretching or by a magnetic field produce four distinct SAXS patterns: two-point `banana', four-point pattern, four-point `eyebrow' and four-point `butterfly'. The peak intensities of the reflections lie not on a layer line, or the arc of a circle, but on an elliptical trajectory. Modeling shows that randomly placed lamellar stacks modified by chain slip and stack rotation or interlamellar shear can create these forms. On deformation, the isotropic CDS becomes an equatorial streak with an oval, diamond or two-bladed propeller shape, which can be analyzed by separation into isotropic and oriented components. The streak has elliptical intensity contours, a natural consequence of the imperfect alignment of the elongated scattering objects. Both equatorial streaks and two- and four-point reflections can be fitted in elliptical coordinates with relatively few parameters. Equatorial streaks can be analyzed to obtain the size and orientation of voids, fibrils or surfaces. Analyses of the lamellar reflection yield lamellar spacing, stack orientation (interlamellar shear) angle α and chain slip angle ϕ, as well as the size distribution of the lamellar stacks. Currently available computational tools allow these microstructural parameters to be rapidly refined.

X-ray photon correlation spectroscopy (XPCS) is a powerful tool for the investigation of dynamics covering a broad range of timescales and length scales. The two-time correlation function (TTC) is commonly used to track non-equilibrium dynamical evolution in XPCS measurements, with subsequent extraction of one-time correlations. While the theoretical foundation for the quantitative analysis of TTCs is primarily established for equilibrium systems, where key parameters such as the diffusion coefficient remain constant, non-equilibrium systems pose a unique challenge. In such systems, different projections (`cuts') of the TTC may lead to divergent results if the underlying fundamental parameters themselves are subject to temporal variations. This article explores widely used approaches for TTC calculations and common methods for extracting relevant information from correlation functions, particularly in the light of comparing dynamics in equilibrium and non-equilibrium systems.

Characterization of crystallization processes in situ is of great importance to furthering knowledge of how nucleation and growth processes direct the assembly of organic and inorganic materials in solution and, critically, understanding the influence that these processes have on the final physico-chemical properties of the resulting solid form. With careful specification and design, as demonstrated here, it is now possible to bring combined X-ray diffraction and Raman spectroscopy, coupled to a range of fully integrated segmented and continuous flow platforms, to the laboratory environment for in situ data acquisition for timescales of the order of seconds. The facility used here (Flow-Xl) houses a diffractometer with a micro-focus Cu Kα rotating anode X-ray source and a 2D hybrid photon-counting detector, together with a Raman spectrometer with 532 and 785 nm lasers. An overview of the diffractometer and spectrometer setup is given, and current sample environments for flow crystallization are described. Commissioning experiments highlight the sensitivity of the two instruments for time-resolved in situ data collection of samples in flow. Finally, an example case study to monitor the batch crystallization of sodium sulfate from aqueous solution, by tracking both the solute and solution phase species as a function of time, highlights the applicability of such measurements in determining the kinetics associated with crystallization processes. This work illustrates that the Flow-Xl facility provides high-resolution time-resolved in situ structural phase information through diffraction data together with molecular-scale solution data through spectroscopy, which allows crystallization mechanisms and their associated kinetics to be analysed in a laboratory setting.

Small-angle neutron scattering is a widely used technique to study large-scale structures in bulk samples. The largest accessible length scale in conventional Bragg scattering is determined by the combination of the longest available neutron wavelength and smallest resolvable scattering angle. A method is presented that circumvents this limitation and is able to extract larger length scales from the low-q power-law scattering using a modification of the well known Porod law connecting the scattered intensity of randomly distributed objects to their specific surface area. It is shown that in the special case of a highly aligned domain structure the specific surface area extracted from the modified Porod law can be used to determine specific length scales of the domain structure. The analysis method is applied to study the micrometre-sized domain structure found in the intermediate mixed state of the superconductor niobium. The analysis approach allows the range of accessible length scales to be extended from 1 µm to up to 40 µm using a conventional small-angle neutron scattering setup.

Catawba County Emergency Medical Services names Employees Of Year.

As of October 1, 2012, Catawba County EMS has been named a Permanent Car Seat Checking Station by Buckle Up NC. Car seat checks will be conducted Monday thru Friday, from 9:00 a.m. to 4:00 p.m., by appointment, at the Newton EMS base, located at 1101 South Brady Ave, Newton, NC 28658.

Many Catawba County residents will be able to recycle more items beginning November 4.

Sheriff's auction items placed for sale by the Catawba County Sheriff's Office are now posted online.

More targeted aircraft testing and simulation should be conducted to uncover design characteristics in new flight control systems that -- in rare circumstances -- may mislead pilots and result in unstable or dangerous flight conditions, says a new report by a National Research Council committee.

Welcome to the public release of the latest Institute of Medicine report on the quality of health care in America.

To significantly reduce the tens of thousands of deaths and injuries caused by medical errors every year, health care organizations must adopt information technology systems that are capable of collecting and sharing essential health information on patients and their care, says a new report by the Institute of Medicine of the National Academies.

Scientific evidence links mold and other factors related to damp conditions in homes and buildings to asthma symptoms in some people with the chronic disorder, as well as to coughing, wheezing, and upper respiratory tract symptoms in otherwise healthy people, says a new report from the Institute of Medicine of the National Academies.

Evidence exists that people who lived or worked at Camp Lejeune Marine Base in North Carolina between the 1950s and 1985 were exposed to the industrial solvents tricholorethylene (TCE) or perchloroethylene (PCE) in their water supply, but strong scientific evidence is not available to determine whether health problems among those exposed are due to the contaminants, says a new report from the National Research Council.

An analysis of more than 1,000 research articles concluded that few health problems are caused by or clearly associated with vaccines.

A new report from the Institute of Medicine and National Research Council proposes priorities for a research agenda to improve understanding of the public health aspects of gun-related violence, including its causes, health burden, and possible interventions.

The latest and final in a series of congressionally mandated biennial reviews of the evidence of health problems that may be linked to exposure to Agent Orange and other herbicides used during the Vietnam War changed the categorization of health outcomes for bladder cancer, hypothyroidism, and spina bifida and clarified the breadth of the previous finding for Parkinson’s disease.

It is possible to end the transmission of hepatitis B and C and prevent further sickness and deaths from the diseases, but time, considerable resources, and attention to various barriers will be required, says a new report from the National Academies of Sciences, Engineering, and Medicine.

Our ability to observe and predict severe weather events and other disasters has improved markedly over recent decades, yet this progress does not always translate into similar advances in the systems used in such circumstances to protect lives.

A comprehensive aviation safety system as envisioned by NASA would require integration of a wide range of systems and practices, including building an in-time aviation safety management system (IASMS) that could detect and mitigate high-priority safety issues as they emerge and before they become hazards, says a new report by the National Academies of Sciences, Engineering, and Medicine.

Current federal safety regulations for small distribution systems used for propane and other liquefied petroleum gases (LPGs) should be improved for clarity, efficiency, enforceability, and applicability to risk, says a new report from the National Academies of Sciences, Engineering, and Medicine.

Representatives from the national academies of sciences of the G20 countries handed over recommendations for improving marine conservation to the Japanese Prime Minister Shinzo Abe.

The Gulf Research Program (GRP) of the National Academies of Sciences, Engineering, and Medicine today announced a new funding opportunity under its Healthy Ecosystems Initiative.

A new report from the National Academies of Sciences, Engineering, and Medicine says that enhancements to the geodetic infrastructure are needed to answer important questions about sea level rise, water resources, geological hazards, and more over the next decade.

Limitations in existing health studies have resulted in insufficient evidence to determine whether U.S. troops’ exposure to burn pit emissions and other airborne hazards in Southwest Asia are linked to adverse respiratory health outcomes, says a new report from the National Academies of Sciences, Engineering, and Medicine.

The Gulf Research Program (GRP) of the National Academies of Sciences, Engineering, and Medicine today announced grant awards totaling $5.27 million for six new projects. These projects, planned to span two to three years, aim to improve understanding of how natural processes and human activities interact to affect coastal ecosystems in the U.S. Gulf Coast region.

As unmanned systems (UxS) continue to develop and be used by military services and federal agencies, the U.S. Coast Guard should proceed more aggressively and deliberately in taking advantage of UxS advancements, says a new congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine.

A new report from the National Academies of Sciences, Engineering, and Medicine calls on U.S. colleges and universities to take comprehensive, campuswide approaches to more effectively address mental health and substance use problems among students and to develop cultures that support well-being.

In many cities, shrinking populations and aging infrastructure mean increasingly unaffordable water

To explore the complex interactions between the natural world and society and enhance our understanding of Earth’s systems, the National Science Foundation should create a next-generation Earth systems science initiative.

The COVID-19 pandemic and more frequent wildfires have highlighted the need for respiratory protection for the public and all types of workers, including essential and gig economy workers. A new report recommends frameworks to ensure both groups receive timely access to appropriate respiratory protective devices and guidance on their effective use.

Human control over technology was a concern thousands of years ago when early humans sought to ensure safe use of fire. Later, control over horse-drawn wagons and eventually steam engines led to debates about how to make the most of their benefits while limiting dangers. Now questions of control are central in the design of AI-infused technologies, for which some advocates envision full machine autonomy while others promote human autonomy.

The Triennial Conference of the InterAcademy Partnership and the Worldwide Meeting of Young Academies will take place Nov. 1-3. The conference will convene the world’s senior and young science academies to explore how to make research structures and processes more inclusive, effective, and sustainable.

Research funded by NIH that uses nonhuman primates is critical to the nation’s ability to respond adequately to public health emergencies and carry out high-impact biomedical research, but gaps in the systems that support research using these animal models are undermining national health emergency readiness.

HCLTech said the lab is scalable to test millimeter-wave (mmWave) frequency 5G infrastructure to help OEMs and telecom service providers quickly and accurately measure critical parameters.

Managers in Industry 4.0 will need risk management skills, says Rekha Sethi, director-general of AIMA

The 24% quarterly growth follows a slower-than-expected 16% growth in the January to March quarter, as reported by ET in May. While certain segments like pharma and eye wear have grown at a faster clip, senior ecommerce industry executives said there is an emerging trend of slowdown in online sales of low-priced items across categories like fashion, appliances, etc.

In today's computer chips, memory management is based on what computer scientists call the principle of locality: If a program needs a chunk of data stored at some memory location, it probably needs the neighboring chunks as well.

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Despite the noise around AI in the market right now, it is going to take time for companies to develop and adapt to the technology, Kalra said. On the business front, the company expects to fair well despite the challenging global environment and continue on its plan to expand in Europe and Asia Pacific while continuing the North America focus.

It offers centralized request management, omnichannel integration, self-service capabilities, enhanced visibility for business partners, employee training and tools, powerful analytics capabilities, seamless integration with existing systems, and comprehensive service offerings.

According to a release, Infosys will work closely with Sector Alarm to migrate their disparate, on-premises Enterprise Resource Planning (ERP) platform onto Microsoft Dynamics 365 Finance and Operations (F&O), helping them modernize their financial and business operating models.

Grey is in conflict with a thermostat, while Myke has finished his assignment on Mood Tracking. Myke discusses the challenge of juggling the workloads of two businesses, and your hosts take you behind the scenes of a Cortex Brand meeting, revealing their concerns about a significant bet they are about to undertake.

Mettler Toledo's next-generation metal detection systems are designed to identify contaminants in a range of food manufacturing applications, with game-changing SENSE software extending intelligent control across the entire system.

When it comes to new developments in inspection/detection equipment for the snack and bakery industry, consumer demand for variety is driving the need for equipment that is flexible enough to accommodate new product types, packaging materials, and package sizes.

METTLER TOLEDO Product Inspection will demonstrate a variety of inspection systems for the commercial baking industry in booth #3474 at IBIE, being held at the Las Vegas Convention Center, Sept 18–21, 2022.

Dunkin’ is rereleasing its pumpkin bakery line-up of treats plus its Maple Sugar Bacon Breakfast sandwich, and a twist on its Snackin' Bacon.