aero

Diverting the Mannich reaction to access 2,2-disubstituted indolin-3-ones by merging 1,2-aryl migration and copper-catalyzed aerobic oxidation

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00481G, Research Article
Jia-Chen Xiang, Yu-Die Wang, Peng Yuan, Hui-Min Zhu, Tong Lei, An-Xin Wu, Zhixin Liao
Three typical substrates for the Mannich reaction, p-anisidine, aldehyde, and a nucleophile, did not afford the predictable linear Mannich base under an aerobic copper oxidation condition, but rendering a 2,2-disubstituted indolin-3-one product.
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Aeromagnetic survey of the Nash Creek area, Yukon, parts of NTS 105-M,N, 106-C, D, 115-P and 116-A

Kiss, F. Geological Survey of Canada, Open File 8728, 2020, 10 sheets, https://doi.org/10.4095/326147
<a href="https://geoscan.nrcan.gc.ca/images/geoscan/gid_326147-1.jpg"><img src="https://geoscan.nrcan.gc.ca/images/geoscan/gid_326147-1.jpg" title="Geological Survey of Canada, Open File 8728, 2020, 10 sheets, https://doi.org/10.4095/326147" height="150" border="1" /></a>




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Nickel isotopes link Siberian Traps aerosol particles to the end-Permian mass extinction

Li, M; Grasby, S E; Wang, S-L; Zhang, X; Wasylenki, L E; Xu, Y; Sun, M; Beauchamp, B; Hu, D; Shen, Y. Nature Communications vol. 12, 2024, 2021 p. 1-7, https://doi.org/10.1038/s41467-021-22066-7
<a href="https://geoscan.nrcan.gc.ca/images/geoscan/20210011.jpg"><img src="https://geoscan.nrcan.gc.ca/images/geoscan/20210011.jpg" title="Nature Communications vol. 12, 2024, 2021 p. 1-7, https://doi.org/10.1038/s41467-021-22066-7" height="150" border="1" /></a>




aero

The RF GaN Market witnesses the growth of Aerospace & Defense segments, as per Maximize Market Research.

(EMAILWIRE.COM, October 26, 2024 ) Gallium Nitride, also known as GaN, is a semiconductor material that optimizes power density. Utilizing GaN components in an RF amplifier enables the attainment of high-output power without the need for size and weight expansion. High frequency, high power, and...




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Aerostat Systems Market Gains Traction in Defense and Surveillance Applications, as per Maximize Market Research

(EMAILWIRE.COM, November 05, 2024 ) An Aerostat Systems Market is an aircraft lighter than air that achieves lift with the help of a buoyant gas. Aerostat systems consist of unpowered balloons as well as powered airships. A balloon can fly freely or be anchored. Request For Free Sample Report...




aero

Aerospace Testing Market Size, Share, Trends and Growth Analysis 2029

(EMAILWIRE.COM, November 08, 2024 ) The global aerospace testing market was valued at USD 5.29 billion in 2024 and is projected to reach USD 6.68 billion by 2029; it is expected to register a CAGR of 4.8% during the forecast period. Increasing air travel across the globe has increased the demand...




aero

***** Welcome to Prime Aerospace Pte Ltd. Website (rank 30)

About the Group. Our Partners. Prime Aerospace Pte. Ltd. is located in Singapore. ... Eurocopter SEA, National Aviation Company of India, Lufthansa Technik ...




aero

***** Prime Aero (rank 30)

Prime Aero is an aircraft parts dealer and stockist specialized in Regional and Narrow Body Aircraft. We are focusing on the Bombardier, Fokker, Embraer, and the Boeing and Airbus narrow body Aircraft.




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***** Paras Aerospace Pvt. Ltd. | LinkedIn (rank 28)

Paras Aerospace Pvt. Ltd. | 9,797 followers on LinkedIn. Developing Technologies that will Revolutionize the Drones Industry in India | Augmenting UAV systems through world-class technologies! We specialize in aerial mapping, surveying and offer complete UAV integration and UAV-based services, both hardware and software. The prime verticals of the company include Military UAV, Industrial UAV ...




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Sywell Aerodrome in 1945

Sywell Aerodrome (IATA: ORM, ICAO: EGBK) is the local aerodrome serving the town of Northampton, Wellingborough, Kettering and Rushden, as well as wider Northamptonshire. The aerodrome is located 5 nautical miles (9.3 km; 5.8 mi) northeast of Northampton and was originally opened in 1928 on the edge of Sywell village.

http://en.wikipedia.org/wiki/Sywell_Aerodrome





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Aerosmith Begin Their Final Tour

All-time Rock legends kick off what will be their final ever tour.




aero

Aero Garden - $20 off all AeroGardens

$20 off all AeroGardens




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Aeropostale - Shop the clearance sale at P.S. from A...

Shop the clearance sale at P.S. from Aeropostale




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World's first aerospike rocket test mid-flight successful

In a feat that can only be described as legendary, and after many months and a catastrophic setback, Polaris Spaceplanes has finally accomplished something that's never been done before: lit the fuse of an aerospike rocket in flight.

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Category: Aircraft, Transport

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aero

Combination of Lv-3DCNN algorithm in random noise environment and its application in aerobic gymnastics action recognition

Action recognition plays a vital role in analysing human body behaviour and has significant implications for research and education. However, traditional recognition methods often suffer from issues such as inaccurate time and spatial feature vectors. Therefore, this study addresses the problem of inaccurate recognition of aerobic gymnastics action image data and proposes a visualised three-dimensional convolutional neural network algorithm-based action recognition model. This model incorporates unsupervised visualisation methods into the traditional network and enhances data recognition capabilities through the introduction of a random noise perturbation enhancement algorithm. The research results indicate that the data augmented with noise perturbation achieves the lowest mean square error, reducing the error value from 0.3352 to 0.3095. The use of unsupervised visualisation analysis enables clearer recognition of human actions, and the algorithm model is capable of accurately recognising aerobic movements. Compared to traditional algorithms, the new algorithm exhibits higher recognition accuracy and superior performance.




aero

Elliott takes more than $5B stake in Honeywell, advises separating automation, aerospace units

Activist investor Elliott Investment Management has taken a more than $5 billion stake in Honeywell International and is calling for the conglomerate to split into two separate companies.




aero

DAP Reinvents Aerosol Spray Texture Applications with New Line Offering Professional Results

Wall and ceiling spray texture application has traditionally been a frustrating, inefficient and messy experience for professionals and DIYers alike. This year, DAP is reinventing wall and ceiling spray texture in formula, function and finish with the launch of a consistent and reliable product line that delivers a fast-drying, excellent texture match for maximum coverage and professional results.




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SIA & Embry-Riddle Aeronautical University Partner to Benefit Corporate Security Students

Students in the university’s College of Business, Security and Intelligence program will become members of SIA, gaining access to the association’s learning, development and career resources.




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COVID-19 pandemic: Online tool estimates indoor exposure to infectious aerosols

Gaithersburg, MD — A new online tool from the National Institute of Standards and Technology is intended to help curb airborne transmission of SARS-CoV-2 – the coronavirus that causes COVID-19.




aero

X-ray crystal structure of proliferating cell nuclear antigen 1 from Aeropyrum pernix

Proliferating cell nuclear antigen (PCNA) plays a critical role in DNA replication by enhancing the activity of various proteins involved in replication. In this study, the crystal structure of ApePCNA1, one of three PCNAs from the thermophilic archaeon Aeropyrum pernix, was elucidated. ApePCNA1 was cloned and expressed in Escherichia coli and the protein was purified and crystallized. The resulting crystal structure determined at 2.00 Å resolution revealed that ApePCNA1 does not form a trimeric ring, unlike PCNAs from other domains of life. It has unique structural features, including a long interdomain-connecting loop and a PIP-box-like sequence at the N-terminus, indicating potential interactions with other proteins. These findings provide insights into the functional mechanisms of PCNAs in archaea and their evolutionary conservation across different domains of life. A modified medium and protocol were used to express recombinant protein containing the lac operon. The expression of the target protein increased and the total incubation time decreased when using this system compared with those of previous expression protocols.




aero

Enhancing electrospray ionization efficiency for particle transmission through an aerodynamic lens stack

This work investigates the performance of the electrospray aerosol generator at the European X-ray Free Electron Laser (EuXFEL). This generator is, together with an aerodynamic lens stack that transports the particles into the X-ray interaction vacuum chamber, the method of choice to deliver particles for single-particle coherent diffractive imaging (SPI) experiments at the EuXFEL. For these experiments to be successful, it is necessary to achieve high transmission of particles from solution into the vacuum interaction region. Particle transmission is highly dependent on efficient neutralization of the charged aerosol generated by the electrospray mechanism as well as the geometry in the vicinity of the Taylor cone. We report absolute particle transmission values for different neutralizers and geometries while keeping the conditions suitable for SPI experiments. Our findings reveal that a vacuum ultraviolet ionizer demonstrates a transmission efficiency approximately seven times greater than the soft X-ray ionizer used previously. Combined with an optimized orifice size on the counter electrode, we achieve >40% particle transmission from solution into the X-ray interaction region. These findings offer valuable insights for optimizing electrospray aerosol generator configurations and data rates for SPI experiments.




aero

A versatile sample-delivery system for X-ray photoelectron spectroscopy of in-flight aerosols and free nanoparticles at MAX IV Laboratory

Aerosol science is of utmost importance for both climate and public health research, and in recent years X-ray techniques have proven effective tools for aerosol-particle characterization. To date, such methods have often involved the study of particles collected onto a substrate, but a high photon flux may cause radiation damage to such deposited particles and volatile components can potentially react with the surrounding environment after sampling. These and many other factors make studies on collected aerosol particles challenging. Therefore, a new aerosol sample-delivery system dedicated to X-ray photoelectron spectroscopy studies of aerosol particles and gas molecules in-flight has been developed at the MAX IV Laboratory. The aerosol particles are brought from atmospheric pressure to vacuum in a continuous flow, ensuring that the sample is constantly renewed, thus avoiding radiation damage, and allowing measurements on the true unsupported aerosol. At the same time, available gas molecules can be used for energy calibration and to study gas-particle partitioning. The design features of the aerosol sample-delivery system and important information on the operation procedures are described in detail here. Furthermore, to demonstrate the experimental range of the aerosol sample-delivery system, results from aerosol particles of different shape, size and composition are presented, including inorganic atmospheric aerosols, secondary organic aerosols and engineered nanoparticles.




aero

Revealing nanoscale sorption mechanisms of gases in a highly porous silica aerogel

Geological formations provide a promising environment for the long-term and short-term storage of gases, including carbon dioxide, hydrogen and hydro­carbons, controlled by the rock-specific small-scale pore structure. This study investigates the nanoscale structure and gas uptake in a highly porous silica aerogel (a synthetic proxy for natural rocks) using transmission electron microscopy, X-ray diffraction, and small-angle and ultra-small-angle neutron scattering with a tracer of deuterated methane (CD4) at pressures up to 1000 bar. The results show that the adsorption of CD4 in the porous silica matrix is scale dependent. The pore space of the silica aerogel is fully accessible to the invading gas, which quickly equilibrates with the external pressure and shows no condensation on the sub-nanometre scale. In the 2.5–50 nm pore size region a classical two-phase adsorption behaviour is observed. The structure of the aerogel returns to its original state after the CD4 pressure has been released.




aero

Bühler Aeroglide appoints new VP, process engineering

As Bühler Aeroglide’s vice president of process engineering, Tom Barber will work with customers worldwide.




aero

Bühler Aeroglide moisture control system

Bühler Aeroglide has introduced a complete moisture control system that helps customers maintain a dryer temperature profile and minimize over drying.  




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ASHRAE publishes Standard 241, Control of Infectious Aerosols

Standard 241 establishes minimum requirements to reduce the risk of airborne disease transmission, such as SARS-COV-2 virus, which causes COVID-19, the flu virus and other pathogens in buildings like single and multi-family homes, offices, schools and healthcare facilities.




aero

[Pangyo Interview] STARCHIUM Leads Construction Digitalization with B2B Interior Material Platform 'Zazaero'

STARCHIUM, under CEO JeongWan Lee, boosts construction with 'Zazaero,' a digital platform enhancing material procurement and logistics for small firms. The company plans global expansion and a B2C shift.




aero

Edward M. Topps Honored for Contributions to the Aerospace Industry

Hailing from a distinguished military career, and a decade as an Executive in the Defense Industry, Edward M. Topps is serving now as Vice President of Business Development at Persistent Systems, LLC.




aero

Marquis Who's Who Honors Ji Young Kim, MS, for Expertise in the Aerospace Industry

Ji Young Kim, MS, is honored for his expertise in engineering through his work with Boeing




aero

Marquis Who's Who Honors Tim Held for Expertise in the Aerospace and Engineering Sectors

Tim Held noted for his success in spacecraft engineering as a mission chief engineer at BAE Systems




aero

Marquis Who's Who Honors William Ward for Expertise in Aerospace Engineering

William Ward is lauded for his successful tenure as a retired aerospace engineer and project manager




aero

Marquis Who's Who Honors Michael B. Fleck for Expertise in Aviation and Aerospace

Michael B. Fleck honored for his leadership and outstanding contributions to the aviation industry




aero

Marquis Who's Who Honors Gerard Klahn for Expertise in Aerospace Technology, Defense, and Engineering

Gerard Klahn is a seasoned expert with 40 years of experience in design development and system analysis




aero

James Mitchell Bowden Demonstrates Expertise in Aeronautical Engineering

James Mitchell Bowden serves as a Regulatory Compliance Leader at Textron Aviation Inc.




aero

Aerostar Thunderhead Balloon System Achieves 200 Days of Flight in the Stratosphere

Today, an Aerostar Thunderhead Balloon achieved 200 days of stratospheric flight. The balloon, identified as HBAL 676, was manufactured by Aerostar International LLC




aero

Experience Aero Wheel Covers: Your Tesla's Secret Weapon to Stand Out

Tesla Model Y owners, do you want your vehicle to stand out? Now, there's a secret weapon that can make your Tesla stand out from the crowd. Experience TESERY's latest Aero Wheel Covers and make your Tesla truly unique!




aero

Altair to Collaborate with the University of Nottingham to develop aerospace digital twin project

University to use the Altair HyperWorks and Altair RapidMiner platforms in groundbreaking electric propulsion digital twin project




aero

Amazing Photos of the 1985 Tritan A2 Aerocar

Tritan Ventures from Ann Arbor, Michigan designed the A2, an aerodynamically advanced vehicle with a drag coefficient of 0.15 and stability from airfoils that produced a sail effect for added thrust. Constructed from fiberglass with a monocoque design, the lightweight 900-pound A2 was powered by a 440cc Syvaro rotary engine, delivering 30 horsepower and achieving […]




aero

Cool career spotlight: a day in the life of an aerospace engineer (November 13, 2024 1:00pm)

Event Begins: Wednesday, November 13, 2024 1:00pm
Location:
Organized By: University Career Center


Interested in gaining a first hand account of a career in aerospace engineering? Join Handshake and Pratt &amp; Whitney Production Test Engineer, Anthony Bartolotta, for answers to questions on topics like:
An average day in the life of an aerospace engineer 
Important hard and soft skills for aspiring engineers to know
Tips for launching a career in engineering
Sign up for free today! 




aero

Vermont is Supply Chain Hub for Largest Aerospace and Defense Companies

Bell Flight, Boeing, Defense Logistics Agency – Troop Support, Sikorsky, A Lockheed Martin Company and Oshkosh Defense top the list of out-of-state OEMs attending the expo.




aero

The Application of Digital Radiography in the Aerospace Industry

Computed radiography, a form of X-ray imaging, has been embraced widely by many major manufacturing companies. Its application is now core for testing within a range of sectors including aerospace, oil and gas, industrial gas turbines, medical implants and prosthetics.




aero

Best Practices for AS9100 Certification in the Aerospace Industry

AS9100, the global quality management standard for aviation, space, and defense, reflects this commitment to excellence. Obtaining AS9100 certification is vital for success in this sector. This guide assists organizations in navigating the certification process, ensuring the implementation of top-quality practices across their systems.




aero

Podcast: An Aerospace Whistleblower Shares His Story

Dale Norwood of Norwood NDT Consulting describes how he blew the whistle on an NDT company in the 1990s after seeing falsified inspections. He's a 45-year veteran of the NDT industry, as well as the owner of the Norwood NDT Consulting and the author of the recent book, Diary of an Aerospace Whistleblower.




aero

Air Gaging Transforms Manufacturing Processes in Automotive and Aerospace Industries

Air gauges are non-contact devices that utilize air pressure for measurement. They play a crucial role in ensuring precision and quality control in the manufacturing industry, from automotive to aerospace industries. They are particularly valuable for measuring delicate or easily deformable materials.




aero

Elevating Aerospace Safety: Uniting Stakeholders for a Safer, More Efficient Aviation Industry

The International Aerospace Quality Group (IAQG®) spearheaded a monumental effort twenty-five years ago to establish uniform standards across the aviation, space, and defense industries, aiming to streamline operations while bolstering quality and safety.




aero

Exploring the Integration of AI and Machine Learning in AM Aerospace Applications

The aerospace industry constantly seeks new technologies for a competitive edge and enhanced capability. AI and maching learning in additive manufacturing offer significant value for meeting industry needs.




aero

Advanced Applications of X-ray Computed Tomography (CT) in Aerospace

X-ray CT is crucial for the aerospace industry, offering nondestructive insights into components' inner structure, aiding in defect detection, maintenance, and research. High-energy CT is advancing the technology, allowing for detailed imaging and shaping the industry.




aero

Materials Matter: The Science of Lightweighting in Aerospace

In aerospace, lightweighting is crucial for fuel efficiency, range, and emissions. Material analysis and technology advancements offer weight reduction without sacrificing performance or safety.





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Enhancing Automated NDT: Leveraging Advanced 3D Phased Array Scanning and C-Scan Mapping Techniques for Aerospace Applications

The aerospace industry relies on advanced nondestructive testing (NDT) to ensure safety and reliability. Automated technologies, such as phased arrays and 3D scanning, enhance defect detection in aircraft structures, reducing human error. This overview emphasizes the importance of these advancements.