omniomni/omni-engineering huggingface dataset:
1,3,5-Tris(4-(tert-butyl)-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazinane-2,4,6-trione. 1,3,5-Tris(4-(tert-butyl)-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazinane-2,4,6-trione (abbreviated here as Antioxidant 1790) is a speciality antioxidant used to stabilise plastics and synthetic fibres.

Synthesis
It can be synthesised in a 2-step manner. Firstly, 2,4-dimethyl-6-tert-butylphenol is reacted with formaldehyde and HCl (Blanc reaction) to generate a chloromethyl group in the less hindered meta position. This intermediate then reacts with cyanuric acid to give the desired product.

Properties
As each phenol group contains only a single t-butyl group they are considered to have low steric hindrance and thus high activity. Arranging three of these around an isocyanurate core gives a compound with a sufficiently high boiling point that it is not volatilised out of the plastic during plastic extrusion and moulding (up to 320 °C in the case of PA). The isocyanurate core also promotes a high level of crystallinity, which greatly reduces extraction of the antioxidant into water.

Applications
Although it is compatible with polyolefins Antioxidant 1790 is a fairly expensive antioxidant and it is primarily used in speciality applications. It has good compatibility with the engineering plastics, high activity and low colour formation, which makes it common choice in synthetic fibres (polyurethane, polyester and polyamide), particularly elastane.

See also
 Tris(3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate - related phenolic antioxidant with a cyanurate core

References

Tert-butyl compounds
3-Hydroxyphenyl compounds
Triazines
Triols
Triketones
Phenol antioxidants
Heron (armored personnel carrier). Heron – wheeled armoured personnel carrier with a 6x6 drive, in a command vehicle version equipped with HMS C3IS Jasmin data processing and internal communications equipment. The carrier is planned to be used as a command and staff vehicle in Homar-K missile launcher divisions. In May 2024, it was tested in Polish Army exercises under the codename Field Experimentation Exercise 2024, at the Land Forces Training Center in Nowa Dęba and at the training ground in Lipa.

Ultimately, it is to be produced by Huta Stalowa Wola S.A. – Autosan Branch in Sanok.

Construction details 
Heron, like the smaller Waran 4×4 transporter, is the result of cooperation between Huta Stalowa Wola and the Czech company Tatra Export s.r.o. The basis for the transporter from HSW is the Czech design of the TADEAS 6×6 vehicle (Tatra Defence Armoured Solution), built on the chassis of the Tatra 815-7 truck. The transporter body was designed by Huta Stalowa Wola, in a three-axle configuration with two steering axles: the first and the last. The drive system was unified with the one currently used in the Warans. The use of two steering axles makes it easy to maneuver in all conditions, and centrally inflated wheels and run-flat inserts allow you to drive even after a tire is damaged.

Technical information 
It carries a crew of 2 and 11 landing troops. It accelerates on paved roads to about 110 - 120 km/h. The vehicle's empty weight is about 22 tons (depending on equipment and armor). The permissible gross weight is 30 tons, and the maximum payload is 10 tons. The driving range is about 700 km. It overcomes a slope of 70%, the angle of approach exceeds 38%, and the angle of departure 50%. It overcomes water obstacles 1.2 meters deep, vertical obstacles 0.4 meters high and ditches 1.6 meters wide. The armour provides ballistic protection level 3a/4a according to the STANAG 4569 standard, and mine protection level 4a/4b (explosion under the vehicle of 10 kg of TNT)

Propulsion 
The drive is provided by an 8-cylinder Tatra T3-928-RE diesel engine, eighth generation with power from 300 to 370 kW, or optionally Caterpillar C9.3B engines with power of 395 or 447 kW and Cummins ISL with power of 300 kW. The engines are coupled with an automatic gearbox with six gears. A similar choice also applies to the transmission. The options include Allison 4500SP automatic, ZF Ecolife II automatic, or Traxxon automated.

Armament 
The automated combat management system HMS C3IS Jasmine, for commanding battalions, regiments, brigades and divisions. It provides not only orders, but also intelligence and logistics data, including: the positions of their subordinate units, the direction of their movement, and ammunition supplies. 

The transporter can be equipped with an open-type machine gun station or a remote-controlled weapon module. The situational awareness of the battlefield of the crew and landing troops is increased by a 360-degree observation system with a set of cameras on the vehicle's hull.

References 

Armoured personnel carriers of Poland
Military vehicles introduced in the 2020s
Wheeled armoured personnel carriers
JNR Class EF52. The Class EF52 was a class of electric locomotive built between 1928 and 1931 in Japan. Although mainline electric locomotives had been designed and manufactured domestically since the introduction of the Class ED15 in 1924, the arrival of the Class EF52 marked the end of importing locomotives to acquire technology.

History 
Japan had started importing electric locomotives from European and American manufacturers in 1922, studied for use on the planned electrification of the relatively flat inland main rail line in the country, (the Tokaido Main Line between Tokyo and Kohzu). After the First World War, the Ministry of Railways planned to replace steam locomotives with electric locomotives. As part of the electrification plan, the Ministry of Railways imported 59 electric locomotives (in three different batches) from European and American manufacturers.

Engineers were most impressed with the American locomotives, built by two different manufacturers. All of the models were direct-current type electric locomotive. The first group were built by Westinghouse/Baldwin Locomotive Works, with Westinghouse providing the electrical equipment and Baldwin the mechanical equipment. The second group were from General Electric (GE)/ALCO, with Electric apparatus manufactured by GE and mechanical components made by ALCO. Japanese engineers selected the best technology from each builder to incorporate into what would be the Class EF52. The high-speed circuit breakers from the GE/ALCO models were incorporated into the new design, with the main traction frame mechanism and electric apparatus layout borrowed from the Westinghouse/Baldwin models. 

The design and construction of the EF52 was distributed among several Japanese companies: Hitachi Limited, Mitsubishi Electric Company, Shibaura Engineering Works, Kisha Seizo Company and Kawasaki Shipyard Company. The project was headed by Kiichi Asakura, noted steam locomotive designer.

Individual locomotives 
Hitachi Limited built the first two locomotives, EF52 No. 1, in September 1928 and No. 2 in October 1928. Class EF52 No. 3 was completed in May 1928 at Shibaura Engineering Works/Kisha Seizo Company and No. 4 was completed June 1928 at the same builder. Nos. 5-6 were completed in July
1928 at Mitsubishi Electric Company,  No. 7 was completed in July 1928 at Kawasaki Shipyard Company, Nos. 8-9 were completed in June 1931 at same builder.

Technical details 
The locomotive has platforms at the front and rear for the crew to board and disembark. The bogies are made of a rod frame and assembled with cross beams, and have balancing beams and intermediate coupling devices between the front and rear bogies. The method of operation could be in series, series-parallel and parallel.

Service life and legacy 
The EF52 proved to be a reliable locomotive, becoming the railway's standard electric locomotive. The locomotives were first used for pulling express passenger trains on the relatively flat Tokaido Main line.

See also
 Japan Railways locomotive numbering and classification

References

Electric locomotives of Japan
1067 mm gauge locomotives of Japan
Railway locomotives introduced in 1928
FOGO (waste collection). Food Organics and Garden Organics, often shortened to FOGO, is a new waste collection system based in Parramatta, New South Wales, Australia. The program has started on Monday, 11 November 2024. It is aimed to reduce food scraps from going into landfill.

Facilities 
Citizens in the City of Parramatta government region would have received a green kitchen caddy and new Yellow Recycling, Green Food Organics and Garden Organics, and Red Landfill Bins.

Operation 
FOGO is operated by the Parramatta Council, and is operated in the towns in the City of Parramatta government region. The red and green bins will be collected weekly, while the yellow recycling bins will be collected fortnightly.

References

New South Wales
Waste collection
Huagong Tech. Huagong Tech (HGTECH; ) is a partially state-owned publicly listed Chinese company. It focuses in the field of industrial laser equipment and optoelectronics.

Background 

The origins of HGTECH can be traced to 1971 when Huazhong University of Science and Technology (HUST) established laboratories and research centres that focused on laser technology. In 1999 they were later restructured into a commercial entity named HGTECH which was based in Donghu New Technology Development Zone to commercialise the university's laser technology.

On 10 May 2000, HGTECH held its initial public offering becoming a listed company on the Shenzhen Stock Exchange. In the same year, HGTECH acquired Australian laser cutting equipment provider Farley Laserlab and took over its worldwide marketing network. This helped the company to sell products to over 30 countries.

In December 2020, the United States Department of Commerce's Bureau of Industry and Security added two labs at HUST to the Entity List for alleged involvement in activities seen as a threat to US national security. The sanctions severed HGTECH access to advanced US-origin technology as HUST was its ultimate owner. In March 2021, HGTECH went through a restructuring which changed its owner to the SASAC.

In June 2022, Xi Jinping visited Wuhan Huagong Laser Engineering, the laser subsidiary of HGTECH. It was the only tech company Xi visited during his tour of Wuhan.

In November 2023, HGTECH was reported to invest $50 million in building a five-hectare factory in the northern province of Bac Ninh in Vietnam.

References

External links
 

Huazhong University of Science and Technology
1999 establishments in China
2000 initial public offerings
Companies based in Wuhan
Companies listed on the Shenzhen Stock Exchange
Electronics companies established in 1999
Government-owned companies of China
Marie Luhring. Marie Luhring was an automotive engineer and one of the first female truck designers in the United States. In 1920, she became the first female associate member of the American Society of Automotive Engineers.

Early life and education 
Marie Luhring graduated from Hunter College with a degree in art. She briefly worked as an animator before beginning her career in engineering.

Career 
In 1918, Marie Luhring began working for International Motors Company, along with twenty-six other women, due to a shortage of male engineers during World War I. She worked for the company for the rest of her life, until 1939.

In 1920, Luhring was admitted as an associate member of the American Society of Automotive Engineers (SAE), making her the first female member of the society. Six years later, Ethel H. Bailey became the first woman to be a full member of the SAE.

In the late 1920s, Luhring was involved in the development of a gas-electric locomotive. Her colleagues reportedly called her "a marvelous person, a marvelous worker."

See also 

 Women in World War I
 Women in engineering in the United States

References 

Hunter College alumni
20th-century women engineers
Women automotive engineers
American automotive engineers
American automobile designers
American women engineers
20th-century American women engineers
Firejail. Firejail is a security sandbox tool designed to enhance the security of applications by isolating them in a sandbox environment. It is a free and open-source software available for Linux-based operating systems. Firejail was created by Antti Kantee and is maintained by a community of developers.

Features 

 Sandboxing: Firejail allows users to run applications in isolated environments, preventing them from accessing sensitive files and system resources.
 SELinux Integration: It integrates with SELinux (Security-Enhanced Linux) to provide robust security policies.
 Resource Limitation: Firejail can limit the resources (CPU, memory, etc.) that a sandboxed application can use.
 Network Isolation: It can restrict network access for sandboxed applications, enhancing security against network-based attacks.
 Filesystem Access Control: Firejail provides fine-grained control over which files and directories an application can access.

Usage 
Firejail is typically used to run potentially untrusted applications or scripts in a controlled environment. It can be invoked directly from the command line or configured to run specific applications automatically.

References 

Free security software
Linux security software
Free software programmed in C
2010s software
Unix security-related software
4-Trifluoromethylbenzaldehyde. 4-Trifluoromethylbenzaldehyde is the organofluorine compound with the formula .  Two other isomers are also known: 2-trifluoromethylbenzaldehyde and 3-trifluoromethylbenzaldehyde.  These compounds are derivatives of benzaldehyde with trifluoromethyl substituents.  The CF3 group enhances the electrophilicity of the formyl group and provides a label for analysis by fluorine-19 nuclear magnetic resonance spectroscopy.

Synthesis and reactions
It can be prepared by a Suzuki-Miyaura coupling from the 4-trifluoromethylphenylboronic acid.  Complementarily, it can be produced by trifluoromethylation of 4-formylphenylboronic acid.

It readily condenses with amines to give imines. It has been used in the synthesis of pharmaceuticals, such as Lanperisone.

References

Benzaldehydes
Trifluoromethyl compounds
Dream Factory (short story). "Dream Factory" is a science-fiction short story by Australian writer Greg Egan, first published in the Clarkesworld Magazine in April 2022. It describes the development of an app to watch the dreams of pets. The short story was included in the collection Sleep and the Soul in 2023.

Plot 
In the near future, people put electrodes in their pet's brains to make them do tricks. James intends to expose this as nonsense and uses the cat Pawpaw to programm an app, which shows the dreams of pets. But instead of the world realizing, that they should not mess with their brains, the app goes viral after the recommendation of a famous pop singer. James then begins to work on a fake decoy app to undermine his own success.

Reviews 
Victoria Silverwolf wrote in Tangent Online that Egan "creates unusually plausible speculative technology, while also demonstrating a profound understanding of the cultural impact of social media". She further adds that "subtle hints of a near future when today’s disturbing trends have continued in an all too believable way add a sense of authenticity to a story that will appeal to many, whether or not they are ailurophiles."

Karen Burnham wrote in Locus that the short story "might be a bit long for its premise, but it’s a great look at a modern day intersection of different technologies."

Russell Letson also wrote in Locus that the short story is a "a canny and rewarding hacking project."

External links 

 
 Dream Factory in the Clarkesworld Magazine

References

Australian science fiction short stories
2022 short stories
Short stories by Greg Egan
Shaded Picture System. The Shaded Picture System was a 3D raster computer display processor introduced by Evans & Sutherland in October 1973.

The Shaded Picture System was the first general-purpose, commercially available raster computer graphics display processor capable of real-time, shaded 3D graphics. It could only display black and white graphics at a resolution of 256 by 256. It was extremely expensive, and very few units were ever sold.

History 

The principles of shaded, hidden-line true 3D graphics were pioneered at the University of Utah in 1967. However, this algorithm was slow and would take several minutes to produce an image. In 1970, Gary Watkins developed a FORTRAN simulator of a faster algorithm that would theoretically generate shaded 3D images in real-time, "if implemented in suitable hardware". The simulator itself was still not capable of real-time shaded 3D image rendering. Evans & Sutherland developed a functional prototype of this "suitable hardware", which was later sold as the Shaded Picture System in 1973.
About a year earlier in 1972, Evans & Sutherland sold the first and only CT1 to Case Western Reserve University. The CT1, or Continuous Tone 1, was a specialized image generator, not meant as a marketable or mass-produced product. At the time, the CT1, along with G.E./NASA's upgraded Electronic Scene Generator from 1971, would have been the only real-time raster graphics systems sold to customers comparable to the Shaded Picture System, although both the CT1 and Electronic Scene Generator were intentionally produced as one-off products and specialized for the needs of their customers. The Shaded Picture System, in contrast, was intentionally marketed.In early 1975, Evans & Sutherland demonstrated a random-access video frame buffer using relatively low-cost semiconductor memory, which was much more capable than the Shaded Picture System. When interfaced with a (non-shaded) E&S Picture System, the frame buffer had a resolution of 512 by 512 in grayscale and partial color capabilities. By the end of 1975, this frame buffer was commercially available.

See also 

 LDS-1 (Line Drawing System-1)

References 

Graphical terminals
Display devices
Computer graphics
Eran Tromer. Eran Tromer is a professor of computer science at Boston University. His research focuses on information security, cryptography and algorithms. He is a founding scientist of Zcash.

Biography 
Tromer received his PhD from the Weizmann Institute of Science. In 2024, he joined Boston University's Hariri Institute for Computing.

Research 
In 2014, Tromer and his colleagues demonstrated an RSA key extraction attack using acoustic cryptanalysis, a type of side-channel attack.

In 2014, Tromer coauthored the design of Zerocash, which laid the foundation for the Zcash protocol. The work was recognized by the Test of Time Award at the IEEE Symposium on Security and Privacy.

Awards 
 ACM CCS The Test-of-Time Award (2019)
 IEEE Symposium on Security and Privacy Test-of-Time Award (2024)

References

External links 
 Home Page

Living people
Modern cryptographers
Israeli cryptographers
Boston University faculty
People associated with cryptocurrency
Year of birth missing (living people)
Institute of Industrial Science. The Institute of Industrial Science (usually abbreviated as IIS) is an institute within the University of Tokyo (UTokyo). The institute conducts 'scientific and comprehensive research of industrial production and the practical application of research findings'. It covers almost every field in engineering, and has a focus on collaboration with the private sector. Although the institute operates in close liaison with the School of Engineering, they are separate entities.

The institute shares the phase II portion of the Komaba Campus with the Research Center for Advanced Science and Technology. The main building of the institute stretches 200 metres from north to south and is eight storeys tall. It was designed by Hiroshi Hara, a professor in the Department of Architecture at UTokyo.

Organisation 
All of the over 120 research laboratories belong to one of the following five divisions:

 Informatics and Electronics
 Materials and Environmental Science
 Human and Social Systems
 Fundamental Engineering
 Mechanical and Biofunctional Systems

History 

IIS originated as the Second Faculty of Engineering (第二工学部), which was established to meet the increased demand for engineers during the Second World War. Yuzuru Hiraga, 1st Baron Hiraga, who was president of the university when the war broke out, was the primary advocate of this idea, and the faculty opened in makeshift buildings on the newly built Chiba campus just a year later, in 1942. The faculty was funded 50% each by the Navy and Army, which meant the primary focus of it was placed on military research.

The faculty was closed after the war, and IIS was established as its successor. In 1962, IIS relocated to the former headquarters of the Third Infantry Regiment in Roppongi, though some large experimental equipment remained in Chiba. As Japan's economy rapidly recovered from the devastation of the war and became the world's second-largest economy in the 1960s, the institute collaborated closely with major manufacturing companies. These collaborations covered a range of fields, from research on efficient iron mills to telecommunications and space rocket development.

IIS moved from Roppongi to Komaba in 2001, and its former site is now occupied by the National Art Center.

References 

University of Tokyo
Research institutes in Japan
Tantie Merle and the Farmhand 4200. "Tantie Merle and the Farmhand 4200" is a 2023 science fiction short story by Trinidadian author R. S. A. Garcia. It was first published in Uncanny Magazine.

Synopsis
An elderly Trinidadian woman is given a robotic farmhand made of nanotechnology, with unexpected results — including that it is repeatedly eaten by her goat.

Reception
"Tantie Merle and the Farmhand 4200" won the Nebula Award for Best Short Story of 2023 and the 2024 Theodore Sturgeon Memorial Award.

Origin
Garcia has described the story as having been inspired by an online conversation about how goats will eat anything.

References

External links
Text of the story, at Uncanny Magazine

Works originally published in Uncanny Magazine
Nebula Award for Best Short Story–winning works
USS Atlanta (SSN-813). USS Atlanta (SSN-813) will be a nuclear-powered  of the United States Navy, the twelfth Block V attack submarines and 40th overall of her class.

The submarine will be the sixth U.S. Navy vessel named for Atlanta, Georgia.

Atlanta and sister ship  were ordered during the 2024 Fiscal Year budget at a combined cost of $9.4 billion.

Design 
Compared to Blocks I-IV of Virginia-class submarines, Block V vessels will incorporate previously introduced modifications to the base design in addition to a Virginia Payload Module (VPM). The VPM inserts a segment into the boat's hull which adds four vertical launch tubes. Each tube allows for the carrying of seven Tomahawk strike missiles, increasing her armament to a total of 40 missiles.

References

Virginia-class submarines
Submarines of the United States Navy
Proposed ships of the United States Navy