Children's Geographies; 10/01/2024
(AN 180134754); ISSN: 14733285
Academic Search Premier

At-wavelength metrology of X-ray optics plays a crucial role in evaluating the performance of optics under actual beamline operating conditions, enabling in situ diagnostics and optimization. Techniques utilizing a wavefront random modulator have gained increasing attention in recent years. However, accurately mapping the measured wavefront slope to a curved X-ray mirror surface when the modulator is downstream of the mirror has posed a challenge. To address this problem, an iterative method has been developed in this study. The results demonstrate a significant improvement compared with conventional approaches and agree with offline measurements obtained from optical metrology. We believe that the proposed method enhances the accuracy of at-wavelength metrology techniques, and empowers them to play a greater role in beamline operation and optics fabrication.

Achieving diffraction-limited performance in fourth-generation synchrotron radiation sources demands monochromator crystals that can preserve the wavefront across an unprecedented extensive range. There is an urgent need for techniques of absolute crystal diffraction wavefront measurement. At the Beijing Synchrotron Radiation Facility (BSRF), a novel edge scan wavefront metrology technique has been developed. This technique employs a double-edge tracking method, making diffraction-limited level absolute crystal diffraction wavefront measurement a reality. The results demonstrate an equivalent diffraction surface slope error below 70 nrad (corresponding to a wavefront phase error of 4.57% λ) r.m.s. within a nearly 6 mm range for a flat crystal in the crystal surface coordinate. The double-edge structure contributes to exceptional measurement precision for slope error reproducibility, achieving levels below 15 nrad (phase error reproducibility < λ/100) even at a first-generation synchrotron radiation source. Currently, the measurement termed double-edge scan (DES) has already been regarded as a critical feedback mechanism in the fabrication of next-generation crystals.

Metro Bank has been fined nearly GBP 17 million by the UK’s financial watchdog FCA for failings in its money-laundering controls over four years.

People rest while riding a Los Angeles Metro Rail train amid the coronavirus pandemic on April 1, 2020 in Los Angeles, California.; Credit: Mario Tama/Getty Images

Despite the racial reckoning going on in America right now, and despite the fact that attitudes towards race, inclusion and representation are different now than they were 30 years ago, new research from UC Berkeley shows that a large majority of American metro areas are more segregated now than they were in 1990. The new report from Berkeley’s Institute covers a number of topic areas, but among the key findings were from the national segregation report component of the project, which found Los Angeles to be the sixth-most segregated metro area with more than 200,000 people.

Today on AirTalk, we’ll talk with the lead researcher on the new report and a local historian to talk about how we see the findings of the report play out in Southern California.

Guests:

Stephen Menendian, assistant director and director of research at the Othering & Belonging Institute at UC Berkeley, which works to identify and eliminate the barriers to an inclusive, just, and sustainable society in order to create transformative change; he tweets @SMenendian

Eric Avila, professor of history, urban planning, and Chicano/a studies at UCLA

This content is from Southern California Public Radio. View the original story at SCPR.org.

If combined with public transit and increased in scale, shared modes of transportation, such as ride-hailing, scooter sharing, and bike sharing, can enhance mobility, equity, and sustainability in metropolitan areas, according to a new report from the National Academies of Sciences, Engineering, and Medicine.

Celebrating 20 years in business, with its latest cookbook hot out of the oven, Metropolitan Bakery, Philadelphia, delights in baking delicious breads and creating incredible pastries, popcorn and granola, among other foods. 

Crafting artisan breads, café loaves, pastries and more since 1993, Metropolitan Bakery’s Philadelphia production facility mixes clever flavor combinations with a pinch of automation, European equipment and top-quality ingredients to churn out incredibly fresh baguettes, rolls and country breads, seven days a week.

NeXT Charlotte (NXT|CLT,) a non-profit entrepreneur support organization (ESO) whose vision is Transforming Lives to Equitably Serve Entrepreneurs in Our Communities, announced receiving a generous donation of $100,000 from NC IDEA Foundation.

New Yorkers gain access to a potent cable TV disruptor via FreeCast Home and the next-gen broadcast standard.

The WJA Open is a golf tournament that directly supports students of the Washington Jesuit Academy (WJA), a private, all-boys, tuition-free Catholic school educating students from underserved neighborhoods in the metro D.C. region.

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If a plumbing company in a major US metro would like to expand their repipe business, they are welcome to call the Plumbing Pipe Advocate at 866-714-6466. The conversation will include website first impressions-as well as generating more customers.

Queens County Locksmith, a fully licensed and insured locksmith, garage door & door company servicing the New York City metro area and all of Nassau County Long Island, proudly announces its comprehensive range of services

- 81 Seoul Startup companies participated in 'Eureka Park,' the national startup exhibition center at CES 2024 - Mayor Oh Se-hoon at the CES 2024 in Las Vegas on Jan. 9 (local time) Congratulated Innovative Companies

MEGA CYLCE OF WATER: Economic and Engineering Plan [Agave Book 2]

The presentation will discuss Walk-Up Metrology—the capability and utilization of a vision and multi-sensor system to be effective for a wide range of measurement applications.

Ensuring stringent medical part quality is challenging, but with the right vision system, manufacturers can utilize powerful technology to help determine that the challenges are being met. 

We review essential software specifications and cover how those attributes can be leveraged when considering computer-controlled physical product testing equipment in the lab or on the shop floor.

Discovering, evolving, and sometimes unsettling, artificial intelligence mirrors our human learning. Yet, as it integrates further, questions arise: Can it handle quality assurance? What's in the future? And crucially, how much control are we comfortable relinquishing to it?

Product demonstrations and technical presentations on 3D and CT scanning engage audiences in Wisconsin and Ohio.

Power-Gen focuses on all forms of power generation and brings together key suppliers and service providers with decision makers in the international power generation sector.

Company uses high-definition tools to design replacement piping in power plant.

British coordinate measuring machine (CMM) manufacturer LK Metrology, Castle Donington, has announced the release of the latest version of its measurement, programming, simulation, analysis and reporting software.

The L.S. Starrett Co. will be demonstrating the latest in quality control inspection technology at IMTS Booth #134130 located in the Quality Assurance Pavilion, East Hall in McCormick Place, Chicago IL from Sept 9-14, 2024.

Optical Gaging Products (OGP®) announced the next evolution of SmartScope® 3D Multisensor Metrology systems: SmartScope M-Series.

The aerospace industry uses automation and metrology to improve product quality and safety. Components require precise measurements for high quality and efficient production.

The Paris 2024 Olympics highlight global unity and the crucial role of metrology in ensuring accuracy and fairness in sports. Precise timing in events like track and swimming, accurate measurements in javelin and cycling, and monitoring environmental factors all contribute to the integrity of the Games and uphold competitive excellence.

This may seem like two very different fields, but they surprisingly intersect, combining the precision and accuracy of measurements with the creativity and subjectivity of artistic expression.

In March 2023, after a GPT model passed a biology exam, Bill Gates noted on his blog that AI could save lives and address climate change. If AI can tackle such significant challenges, it can also help with issues faced by manufacturers, metrologists, and quality control professionals. This article will examine the challenges metrologists encounter and highlight potential AI-driven solutions in the metrology value chain.

MSI Viking announced the expansion of its long-standing partnership with Mahr Inc.

Dorsey Metrology International and MPI, Poughkeepsie-based manufacturing companies, are partnering with Dutchess BOCES to host students for Manufacturing Day (MFG Day).

Partnership enhances product offerings to aerospace, automotive, defense, and manufacturing industries in the Midwest.

Metrology is the science of inspection. It includes various measurement tools such as calipers, gauges, micrometers, and vision systems, which are often used for quality control in nondestructive testing (NDT).

In the 20th century, internal combustion engines drove progress, but now automotive manufacturers are rapidly transitioning to EV production, requiring new metrology approaches.

Backlit video metrology systems offer high-speed and precise inspection capabilities by analyzing digital part shadow images to determine feature position and size. Advancements in computing power and algorithms enhance precision, speed, and feature detection, while integration with part positioning systems allows for composite part images, rotating part profile examination, and rapid part sorting.

Justin Novak talks about what’s next for the society, the future (and past) of electric vehicles, and how to do well at your next CMSC 5K.

In modern manufacturing, it's crucial to validate parts immediately after manufacturing or assembly and detect defects before further processing. Automation in manufacturing has outpaced inspection processes, creating a challenge and opportunity for the metrology industry.

The push for smaller, more complex device components has spiked the need for precise, non-damaging metrology, with 3D X-ray microscopy (XRM) leading the way. This technology offers high-resolution measurements critical for quality control in the electronics and manufacturing industries.

These advancements made our factories smarter by enabling systems to communicate with each other, share live data, and make decisions without human intervention. 

Metropolitan Daydreamer Giclee on Canvas by Tennessee Loveless is a(n) Limited Edition. The Edition is Limited to Edition of 195 pcs

Una lectora se queja del defectuoso mantenimiento del suburbano.

Un lector se queja de la falta de ventilación de los vagones del Metro de Madrid.

En la barriada de Santa Águeda, en la vega del Guadalhorce, los bomberos sacaron a 35 vecinos en barca y un británico de 71 años falleció al llegar al hospital sufrir una hipotermia Leer

Los primeros indicios apuntan que el hombre tropezó en un intento de cruzar la vía cuando el semáforo estaba en rojo para él Leer

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La coalición 'abertzale' defiende su apoyo a la propuesta fiscal del PSE-EE y PNV porque ha introducido "progresividad" a las tasas más importantes. Sube un 7% el Impuesto de Actividades a medio centenar de empresas vitorianas que facturan más de 1 millón de euros Leer

Dellafuente estará en el estadio Metropolitano los días viernes 20 y sábado 21 de junio de 2025 Leer

El acuerdo entre el Consistorio y los vecinos, empresarios y comerciantes de la zona permite comenzar a trabajar en un proyecto que estaría licitado en los últimos meses de mandato Leer