omniomni/omni-engineering huggingface dataset:
Pressure-wind relationship calculations for tropical cyclones. There are several different methods to derive pressure from wind speed and vice versa in tropical cyclones. Both information minimum pressure and wind speed have their utilities. Wind speed can describe the destructive potential of a tropical cyclone.

Method 
According to Christopher Burt from Weather Underground, the most reliable method of estimating pressure from wind involves using the Dvorak Technique with an infrared image, which shows how cold cloud tops are. Joe Courtney and John Knaff noted that as several models are based on Atlantic data, it can lead to biases in other parts of the world. 

Most pressure-wind models are in the form of:

Where vm is the maximum wind, Δp is the change in pressure from an external point to the center. a and x are constants. Ted Fujita was the first to modify the exponent; before then, it mostly stood at 0.5.

Models

Knaff-Zehr 
Knaff and Zehr (2007) came up with the following formula to relate wind and pressure, taking into account movement, size, and latitude:

Where Vsrm is the max wind speed corrected for storm speed, phi is the latitude, and S is the size parameter. S is more specifically defined as the ratio of tangential wind at a radius of  to its value under a Rankine vortex model.

Holland 
In 2008, Greg Holland published his model to the Monthly Weather Review.

Knaff-Zehr-Courtney 
Joe Courtney and John A. Knaff published in 2009 a correction to the previous Knaff-Zehr model. They noted that the Knaff-Zehr model had issues with calculating for storms at low latitudes. The equation derived is:

Usage 
The interchangeability of pressure and wind allows for the two to be used to give equivalencies for the public. Pressure-wind relations can be used when information is incomplete, forcing forecasters to rely on the Dvorak Technique.

Some storms may have particularly high or low pressures that do not match with their wind speed. For example, Hurricane Sandy had a lower pressure than expected with its associated wind speed.

See also 

 Proxy data
 Saffir–Simpson scale

References 

Tropical cyclone meteorology
Synoptic meteorology and weather
Physical modeling
DeutschlandRadio Tower. The DeutschlandRadio Tower () also known as the DLF Funkhaus Köln is a high-rise office building in the Raderthal district of Cologne, Germany. Built between 1974 and 1975, the tower stands at  tall with 19 floors and is the current 9th tallest building in Cologne.

History

Architecture
In 1969, the administrative board of Deutschlandfunk decided to build Gerhard Weber's preliminary design. Weber used a suspended structure borrowed from bridge construction for the tower of the building. When construction began in 1974, a cantilever structure was mounted on a 100 metres high reinforced concrete core, from which the individual floors were lowered floor by floor. The steel cables from which the individual floors hang are inserted into the concrete beams that run diagonally across the roof of the building. The interior was state-of-the-art with studios, editing rooms and broadcasting technology. With their excellent acoustics, the broadcasting hall and chamber music hall were in line with the highly acclaimed theaters built by Weber, such as the Mannheim National Theatre and the Hamburg State Opera.

The building is located in the Raderthal district of Cologne on the left bank of the Rhine and has housed the studios and editorial offices of Deutschlandfunk since February 18, 1979 (official opening: April 24, 1980). In the immediate vicinity of the tower used to be the radio building on the Raderberggürtel of Deutsche Welle; it was completely dismantled by 2021.

Since January 29, 2024, the Deutschlandfunk high-rise has been a listed building. A renovation strategy for the tower which will cost €300,000,000 has been created in June 2024.

See also
 List of tallest buildings in Cologne
 List of tallest buildings in Germany

References

External links

 DeutschlandRadio Tower at CTBUH
 DeutschlandRadio Tower at SkyscraperPage
 DeutschlandRadio Tower at Structurae
 DeutschlandRadio Tower at SKYDB

Skyscrapers in Cologne
Skyscraper office buildings in Germany
Buildings and structures in Cologne
Buildings and structures completed in 1975
Office buildings completed in 1975
1975 establishments in West Germany
20th-century architecture in Germany
Modernist architecture in Germany
Antonio Pizzi. Antonio Pizzi (born in 1946) is an Italian-born, French-South African polymer and materials chemist and professor emeritus of industrial chemistry at the University of Lorraine, who is an expert in the fields of bioadhesives, bioresins and wood adhesives and an elected fellow (FIAWS) of the International Academy of Wood Science.

Career 
Pizzi holds multiple advanced degrees, including a doctorate in chemistry (D.Chem.) from the University of Rome (1970), as well as a Ph.D. in organic chemistry and a D.Sc. degree in wood chemistry, both from universities of South Africa. His early career combined academic roles with industry experience, which provided a foundation for his novel research contributions.

From 1989 to 1995, he served as a professor of polymer chemistry at the University of the Witwatersrand in Johannesburg, where he also held the position of head of the Department of Chemistry from 1991 to 1993. In 1994, he returned to Europe to join the University of Lorraine in France, specifically the Laboratory of Study and Research on Wood Materials (LERMAB-ENSTIB).

Pizzi's research primarily focuses on polycondensation resins, particularly biosourced and synthetic wood adhesives. He is widely acknowledged for advancing the development and application of adhesives derived from renewable materials, as well as the composites bonded with them.

International recognition 
Throughout his career, Pizzi has published extensively, authoring more than 1,000 research articles, patents, and over 12 books, including foundational works on bioadhesives and bioresins. His contributions have earned numerous international scientific awards, reflecting his influence on the field of industrial and polymer chemistry. Pizzi's work is particularly related to the areas of renewable resources and environmentally-friendly adhesive technologies.

His research work is well recognised in the fields of materials science and wood science and technology, having almost 30,000 citations at Scopus, and more than 47,000 citations at Google Scholar with an h-index of 99.

In October 2023, a referenced meta-research conducted by John Ioannidis and his team at Stanford University included Antonio Pizzi in Elsevier Data 2022, where he was ranked at the global top 2% of researchers of all time in the area of materials, having a superior composite index of 4.0955.

In addition, Pizzi has won the prestigious Schweighofer Wood Innovation award (2006), and also twice the Descartes Research Prize, awarded by the European Commission.

Books 
 Handbook of Adhesive Technology (2017), CRC Press 
 Lignocellulosic Fibers and Wood Handbook (2016), Wiley
 Wood Adhesives (2010), CRC Press
 Advanced Wood Adhesives Technology (1994), CRC Press

References

External links 
 Scopus
 Google Scholar
 CV of Antonio Pizzi (pg. 140)
 Lermab

Italian scientists
French scientists
Fellows of the International Academy of Wood Science
Wood scientists
1946 births
Living people
Bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite. Bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite is an organophosphite used as a polymer stabilizer in plastics. Like other phosphite antioxidants it primarily acts to remove hydroperoxides and is typically used in combination with hindered phenolic antioxidants such as pentaerythritol tetrakis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate).

Synthesis
It is formed by a reaction between phosphorus trichloride, pentaerythritol and 2,4-di-tert-butylphenol. The poor solubility of pentererythritol can be an issue and non-nuncleophilic amines are often used to promote the reaction.

Properties and applications
Compared to tris(2,4-di-tert-butylphenyl)phosphite (a common phosphite antioxidant) it has higher activity but lower stability against hydrolysis. Trace levels of amine bases are often added to commercial material to slow hydrolysis and increase storage life. It's crystal structure has been determined. It is comparable with a wide range of plastics including polyolefins, engineering plastics and polyurethane fibers. It is an approved food contact material in the US.

References

Phenol ethers
Organophosphites
Cybernet (disambiguation). Cybernet is a 1995–2008 British video gaming television programme.

Cybernet may also refer to:

 Cybernet (brand), a defunct German high-fidelity audio equipment manufacturer
 CyberNET Engineering, a fraudulent company founded by Barton H. Watson
 Cybernet Entertainment, parent company of Kink.com and other internet pornography sites
 Cybernet Ventures, developer of the Adult Check online age-verification service

See also
 Cybernetics (disambiguation)
Star Trucker. Star Trucker is a role-playing video game developed by Monster and Monster and published by Raw Fury. In the game the player plays as a driver of a truck that travels in outer space. It was released in 2024 and received positive reviews.

Gameplay 
In Star Trucker the player assumes the role of a truck driver. The truck, modeled after American semi-trailer trucks of the 1970s, is a vehicle that travels in outer space, which players use to haul bulk cargo in the form of containers. It is equipped with sci-fi equipment, including a warp drive, maglock, space suit, and more. The vehicle uses three-axis control and is powered by large batteries, which are also used to power other components of the truck.

Similar to other role-playing games, the objective of the game is to earn money and reputation while progressing the story. A typical mission has four parts: accepting tasks and purchasing equipment from space stations, collecting the cargo located in the middle of space, driving the truck and passing through warp gates, and dropping off the cargo at the destination.

Along the journey there are various locations the player can visit, such as gas stations, convenience stores, upgrade shops, and weighing stations. There are also asteroids scattered throughout the world, which damage the truck's hull and internal components if collided with. When a component breaks, on-truck systems begin to malfunction, which leads to events including loss of gravity, blackout, low oxygen, and broken batteries.

Development and release 
The game was created by indie developer Monster and Monster and published by Raw Fury. A game demo was released on Steam on February 17, 2024, and the full game was made available on September 3.

Reception 
Star Trucker received positive reviews from critics upon release, who praised the game for its relaxing gameplay and creativity, but also criticized its relatively simple truck systems.

References

External links 

 

2024 video games
Role-playing video games
Science fiction video games
Truck racing video games
Video games set in outer space
Eureka Labs. Eureka Labs is an AI education company founded by Andrej Karpathy. Karpathy announced the founding of Eureka Labs on July 16. The company aims to create a AI Native School.

Karpathy says that Eureka Labs' first course will teach students how to create their own large language model from scratch.

According to Karpathy, recent advancements in generative AI would allow teacher to teach across languages to many more students with the support of AI teaching assistants.

References

External links 

Artificial intelligence companies
Mitsubishi Ki-73. The Mitsubishi Ki-73, Allied reporting name "Steve", was a single-engine super high-speed long-range escort fighter designed by Mitsubishi Aircraft Company for use by the Imperial Japanese Army Air Service in World War II. The plane only reached the partially prototype development before being abandoned and cancelled. The design and the developed prototype was built as a response to a specification for a single-engined long range escort fighter in May 1943. The Ki-73 was designed by Tomio Kubo, who was also responsible for the Mitsubishi Ki-46 and the Mitsubishi Ki-83 twin engine fighters. The need for the Ki-73 came from heavy losses to Japanese bombers in the Pacific War from Allied fighter planes. The war ended on 2 September 1945, before any farther development was completed on the Ki-73.

Design
The Mitsubishi Ki-73 was a standard monoplane design with a tail dragger configuration. The Ki-73 was designed with contra-rotating propellers, using two three bladed propellers. The two propellers were driven by a Mitsubishi Ha-203-II engine. The super speed Mitsubishi Ha-203-II engine had 2,600 hp derived from a liquid-cooled engine with 24 cylinders in a horizontal H. The high power engine would have given the plane a top speed of 750 km/h (466 MPH). The plane would have four   Ho-5 cannons, two per wing. The Mitsubishi Ha-203-II engine had many problems in development. This complex type engine with two 12 inline cylinders in a horizontal H configuration was successfully built by D. Napier & Son in the Napier Sabre engine and used in the British Hawker Typhoon and Hawker Tempest during the war. Due to the Mitsubishi Ha-203-II engine development problems, Tomio Kubo departed the Ki-73 project and worked on the twin engine Ki-83, which reached the complete prototype stage, but was not produced. The Mitsubishi Ki-73 was given the Allied code name Steve. The United States Army gave the plane a code name as captured documents made its development seen to be near completion.

See also

References

References

Bibliography

 
 Francillon, René J. Japanese Aircraft of the Pacific War. Annapolis, MD: Naval Institute Press, 1995 (reprint).
 Green, William. Warplanes of the Second World War, Volume Three: Fighters. London: Macdonald & Co. (Publishers) Ltd., 1961 (seventh impression 1973). 

Mitsubishi Ki-73
Ki-73
Lacra Pavel. Lăcrămioara (Lăcră) Pavel (born 1965) is a Romanian and Canadian game theorist and electrical engineer whose research applies game theory to network controllability for communications networks and transport networks. She is a professor of electrical and computer engineering at the University of Toronto.

Education and career
Pavel graduated from the Gheorghe Asachi Technical University of Iași in Romania in 1989. She received a Ph.D. in electrical engineering in 1996, from Queen's University at Kingston in Ontario, Canada.

She was a postdoctoral researcher for National Research Council Canada and then worked in industry before returning to academia in 2002, as a faculty member at the University of Toronto. She was promoted to full professor in 2013.

Book
Pavel is the author of the book Game Theory for Control of Optical Networks (Birkhäuser, 2012).

Recognition
Pavel was named to the 2025 class of IEEE Fellows "for contributions to game theory, control, and optimization for network systems".

References

External links
Home page

1965 births
Living people
Romanian electrical engineers
Romanian women engineers
Canadian electrical engineers
21st-century Canadian women engineers
Women electrical engineers
Game theorists
Gheorghe Asachi Technical University of Iași alumni
Queen's University at Kingston alumni
Academic staff of the University of Toronto
Fellows of the IEEE
Franz Abdon Ulinski. Franz Abdon Ulinski (1890–1974) was an Austrian engineer who was known for his early proposals in spacecraft propulsion.

Biography
Born in Mladějov na Moravě, Moravia (now part of the Czech Republic), Ulinski completed his secondary education in Linz, Austria, in 1910 before joining the Austro-Hungarian Army. Ulinski served in various roles and as a technical officer in the aviation corps during World War I.

In 1919, Ulinski proposed a spacecraft design powered by jets of electrons or ions. He published his ideas in a Viennese aeronautical journal in 1920, outlining two potential energy sources: solar panels for energy storage and atomic disintegration for power generation. At the time, his propulsion concepts were not widely adopted, likely due to the energy requirements needed to escape Earth's gravity.

Ulinski's work is recognized for anticipating later advancements in ion propulsion technology. Ion thrusters have been utilized in spacecraft such as Deep Space One, which conducted flybys of an asteroid and approached a comet, as well as in the stabilization of satellites in Earth orbit.

References

1890 births
1974 deaths
People from Svitavy District
Austrian engineers
Rocket science pioneers
GIDS Spider. The Spider is a mobile electronic warfare anti-drone system produced by the Pakistani conglomerate GIDS. It is Pakistan's first locally made counter-UAV system designed to disrupt Loitering munitions and MALE UAVs by jamming their communication and satellite navigation systems.

Overview 
The Spider is a counter-unmanned aircraft system (CUAS) designed by the Defence Science & Technology Organisation of GIDS. The system was unveiled during the ADEX 2024 defense exhibition in Baku and is designed to jam data transmission between the UAV and its controllers at ranges more than 10 km. It can block GPS, radio and satellite positioning systems. The system comes in both vehicle as well as on man portable tripod mounted versions.

Variants 
 Spider - Standard truck mounted version based on the 1.5 ton Hino 300.
 Spider-Portable - Man portable version deployed on a tripod.

Operators

See also 
 Bukovel
 EDM4S

References

External links 
 Pakistan's GIDS Unveils Advanced Spider Anti-Drone System by InShort

Counter unmanned air systems
Weapons countermeasures
Military equipment introduced in the 2020s
GIDS products
Weapons of Pakistan
JS Nagara. Nagara (ながら) is a frigate of the Japan Maritime Self-Defense Force (JMSDF), and the tenth ship of the . She is named after the Nagara River, becoming the second ship to bear this name, after the Imperial Japanese Navy's  , as well as the first in the JMSDF era.

History 
Nagara was ordered by Mitsubishi Heavy Industries as part of the JMSDF's 2022 Mid-Term Defense Program and was laid down at MHI's Nagasaki Shipyard on 6 July 2023. After being christened and launched on 19 December 2024, Nagara will undergo a period of being fitted out and sea trials before her commissioning in March 2026.

References

External links 

2024 ships
Mogami-class frigates
Ships built by Mitsubishi Heavy Industries
Rimantas Baldišius. Rimantas Baldišius (13 October 1955 – 20 September 2011) was a Lithuanian caricaturist and engineer.

Career 
In 1978, Baldišius began working as an engineer at the Šiauliai Machine Tool Factory. Starting in 1985, he joined the Šiauliai branch of the Lithuanian Institute of Information and became an active participant in the Sąjūdis movement.

In 1980 and 1984, personal exhibitions of R. Baldišius' caricatures were held at the Šiauliai Engineers' House, accompanied by the publication of their catalogs.

In 1988, together with other caricaturists from Šiauliai, he initiated the international caricature exhibition on the theme of bicycles, VELOCARTOON. The first exhibition featured 500 works submitted from 11 countries. It was the first international caricature exhibition held in the former Soviet Union. The fourth and final exhibition took place in 1994.

According to Professor Vytenis Rimkus, these four exhibitions were a form of cultural resistance. Caricature joined other genres of small-scale graphics, such as ex-libris and commemorative art postcards, through which occupied Lithuania and Lithuanians asserted their presence in the world.

The themes of Baldišius' caricatures are diverse. The world of bureaucracy is depicted through personified desks, individuals trapped under piles of paperwork, arrows escaping from technical drawings to strike their creators, and the paradoxes of traffic signs. Professor Vytenis Rimkus observed that the artist created a uniquely distinctive caricature character—a little humanoid figure grappling with various forms of technology, such as cars, machine tools, and their components. Often, the objects of technology themselves, imbued with human-like vitality, become the protagonists of the drawings. This relationship between humans and objects creates paradoxical, illogical, and humorous situations.

From 2008 to 2009, Baldišius was the president of the Šiauliai LIONS Club.

Personal life 
Baldišius was born in Tomsk Oblast, USSR, to a family of deportees. The family returned to Lithuania in 1956.

Baldišius’ daughter Andrė is an architect, urban planner and entrepreneur.

References 

Lithuanian graphic designers
1955 births
2011 deaths
FAdeA IA 73. The IA-73 is an Argentinian trainer aircraft developed by Fábrica Argentina de Aviones (FAdeA) since 2009. The purpose of the IA-73 is to replace the obselete Beechcraft T-34 Mentor and Embraer EMB 312 Tucano in service with the Argentine Air Force (AAF), as well as develop a trainer aircraft for export to other Latin American nations.

Development 
In December 2009, FAdeA began the project assessment phase. The project, titled IA-73 UNASUR 1 [Union of South American Nations], would be a joint effort between Argentina, Brazil, Venezuela, Bolivia, and Ecuador to develop a modern trainer aircraft. FAdeA (Argentina's primary aircraft manufacturer) would produce the design with the assistance of Brazil, Venezuela, and Ecuador, and Bolivia would provide additional funding for the project. This plan was approved by FAdeA's board of directors in late August 2010, and shortly after discussions were launched with the AAF. The first flight would take place in 2013. However, since then the IA-73 has experienced continuing delays in entering service. Original estimates by FAdeA put the aircraft's entry into service for 2015, but that would later be pushed to 2017, and since then information on the project has slowed.

For the engine, FAdeA settled on a single American Pratt & Whitney Canada PT6. Considering the potential of the IA-73 in the international market, plans were also laid for a partnership with the Chinese company CATIC to provide an alternate engine for nations who refrain from business with the United States.

Cost and Service 
The cost to develop the first prototype ended up at around 12 million US$. The total local program cost for 52 aircraft (50 production units and 2 prototype units) would end up around 115 million US$, and the unit cost for the IA-73 would settle at an estimated 1.8 million US$. 

While no units have been sold yet, a few countries have made plans to procure the IA-73 upon the completion of its development. Currently, the AAF plans on purchasing 50 units, Venezuela plans on purchasing 24 units, and Ecuador plans on purchasing 18 units.

Specifications

References 

IA073
Aircraft first flown in 2013
2010s Argentine military trainer aircraft
Low-wing aircraft
Single-engined tractor aircraft
Single-engined turboprop aircraft
Aircraft with retractable tricycle landing gear