omniomni/omni-engineering huggingface dataset:
TreeDL. Tree Description Language (TreeDL) is a computer language for description of strictly-typed tree data structures and operations on them. The main use of TreeDL is in the development of language-oriented tools (compilers, translators, etc.) for the description of a structure of abstract syntax trees.

Tree description can be used as
 a documentation of interface between parser and other subsystems;
 a source for generation of data types representing a tree in target programming languages;
 a source for generation of various support code: visitors, walkers, factories, etc.

TreeDL can be used with any parser generator that allows custom actions during parsing (for example, ANTLR, JavaCC).

Language overview 

Tree description lists the node types allowed in a tree. Node types support single inheritance. Node types have children and attributes. Children must be of defined node type. Attributes may be of primitive type (numeric, string, boolean), enum type or node type. Attributes are used to store literals during tree construction and additional information gathered during tree analysis (for example, links between reference and definition, to represent higher-order abstract syntax).

Operations over a tree are defined as multimethods. Advantages of this approach are described in the article Treecc: An Aspect-Oriented Approach to Writing Compilers

Tree descriptions support inheritance to allow modularity and reuse of base language tree descriptions for language extensions.

See also 
 ANTLR - parser generator that offers a different approach to tree processing: tree grammars.
 SableCC - parser generator that generates strictly-typed abstract syntax trees.

References

External links 
 
 old TreeDL home
 

Programming languages
Domain-specific knowledge representation languages
Wang Yongzhi. Wang Yongzhi (; 17 November 1932 – 11 June 2024) was a Chinese aerospace scientist and academician at the Chinese Academy of Engineering and a commissioner of the 11th National People's Political Consultative Conference. He is notable for serving as the general architect and designer of China's Shenzhou program from 1992 to 2006 overseeing the first six Shenzhou missions. In 2003, he was awarded the nation's highest scientific and technological prize, State Preeminent Science and Technology Award, by President Hu Jintao. Wang Yongzhi graduated from Moscow Aviation Institute in 1961. Wang died on 11 June 2024, at the age of 91.

Wang was posthumously bestowed the Medal of the Republic, the highest honorary medal of the People's Republic of China, in September 2024.

References

External links
 Wang Yongzhi's info on the Chinese Academy of Engineering website

1932 births
2024 deaths
Scientists from Liaoning
Space program of the People's Republic of China
Chinese aerospace engineers
Members of the Chinese Academy of Engineering
People from Tieling
Tsinghua University alumni
Moscow Aviation Institute alumni
Engineers from Liaoning
Highest Science and Technology Award winners
Andrew Keller. Andras (Andrew) Keller FRS (22 August 1925 – 7 February 1999) was a naturalized British polymer scientist.  He was  Research Professor in Polymer Science, Department of Physics, University of Bristol, 1969–91, then professor emeritus.

Biography

Andras Keller was born in Budapest, the only child of Jewish parents. He entered the University of Budapest in 1943, and gained his BSc in chemistry cum laude in 1947. He began his PhD studies at the same university but his work was interrupted by the rapidly deteriorating political situation in Hungary in 1948. He fled to England, leaving behind a submitted but unexamined PhD thesis.

He took a position with Imperial Chemical Industries in Manchester, as technical officer in the Polymers Division, where he was given the task of working out how the physical structure of
polymers affects crystallization. In 1955, he moved to the University of Bristol Physics Department as Research Assistant, under Charles Frank, heading a team financed by the Ministry of Supply (later Ministry of Aviation). Here, he began to further develop his ideas on crystallisation, and obtained his PhD in 1958. Meanwhile, Keller had become a naturalized citizen of the UK in 1954 or 1955.

A key part of his work at Bristol was his discovery in 1957 of chain folding in polymer crystals. The findings were not universally accepted however, and there was much debate between opposing camps for many years to come. It came to a head at a Faraday Discussion in Cambridge in 1979. It was an important meeting because “The arguments thereafter moved from whether one believed in regular chain folding, or in no chain folding at all, to issues of the degree of regularity of the folding under the specific conditions of solidification of a particular material.”

Keller retired in 1991. The occasion was marked by a conference that year on polymer physics at Bristol.

Family

Keller met Eva Bulhack, a Transylvanian Saxon from Romania, in England. They married in 1951, and had two children: Peter and Nicola.

Andrew Keller died of a heart attack on 7 February 1999 while on a skiing holiday in Switzerland.

Honours and awards

References

External links
 

1925 births
1999 deaths
Fellows of the Royal Society
English Jews
Jewish British scientists
Academics of the University of Bristol
Adichunchanagiri Institute of Technology. Adichunchanagiri Institute of Technology (AIT) is an engineering college in Chikkamagaluru, Karnataka, India. It was founded in 1980 by Sri Adichunchanagiri Maha Samsthana Math. The college was initially affiliated during inception to the University of Mysore; in 1991 the college was re-affiliated to Kuvempu University when that university came into existence. It is currently affiliated to Visvesvaraya Technological University.

Notable alumni
This is a list of notable alumni who have excelled in engineering and other fields:
 Ashwin Karthik, born with cerebral palsy, became the first quadriplegic student in India to become a computer science engineering graduate. He is also the winner of a national scholarship for his engineering studies, which is awarded to only one physically challenged student in the entire country of India; National Award as 'Best Physically Challenged Individual in India' by the National Trust; in 2010 and National Award for the Empowerment of Persons with Disabilities, which was conferred by the President of India, Pranab Mukherjee at Vigyan Bhavan, New Delhi on 3 December 2013.

References

External links
 

Affiliates of Visvesvaraya Technological University
Academic institutions formerly affiliated with the University of Mysore
Engineering colleges in Karnataka
Allvelo. Allvelo () was a company founded by Fritiof Karlström in Landskrona, Sweden. The company began by importing bicycles, but soon decided to purchase unassembled Waltham Orient buckboards from the United States. These they assembled and sold as All-Velos under the names Allvelo Orient and Allvelo Pansarmobil Sport. Ultimately, it's likely around 50 were assembled. Most parts other than the steering, axles, and engines were made of wood. Each car had a single-cylinder air-cooled engine mounted at the rear, with friction drive. Brakes were fitted on the right rear wheel only, and the cars had tiller steering.

Other models
Other models assembled included the French Orel as the "Allvelo Orel", and a UK-made truck under the name "Allvelo Vulcan". In 1907 they made a prototype car of their own design, but it never entered into production. At most the company had about 150 employees.

Brass Era vehicles
Defunct motor vehicle manufacturers of Sweden
Goods manufactured in Sweden
Defunct companies based in Landskrona
AB Motorfabriken i Göteborg. AB Motorfabriken i Göteborg (AMG) was founded in 1897 in Gothenburg, Sweden as a producer of stationary engines. In 1899 the company also began producing boat engines and started looking into automobile manufacturing. They went to France and looked for suitable models, settling on the Brasier. They imported Brasiers until their own models could be produced.

In 1903 their first automobile was made. Except for engine, ignition system, carburetor, and tires, the car was made entirely of Swedish products. The engine used was the German Fafnir, but converted to be water-cooled. Transmission was via propshaft, rather than chain or belt as was the norm. The first car was driven from Gothenburg to Stockholm for a car exhibition. However, finances were grim and only ten cars were built. Production ended in 1906.

References

Veteran vehicles
Defunct motor vehicle manufacturers of Sweden
Vehicle manufacturing companies established in 1897
Vehicle manufacturing companies disestablished in 1906
1906 disestablishments in Sweden
Swedish companies established in 1897
AB Nyköpings Automobilfabrik. (ANA) founded in 1937 was an automobile manufacturer in Nyköping, Sweden that assembled trucks from Chrysler, DeSoto, Plymouth, Fargo and later also Škoda and Standard and from the mid-1950s also Simca. From 1946 they also sold Piper aircraft. The company was founded as a daughter company of Nordiska Kompaniet. During the 1960s the company distributed Massey Ferguson tractors, developing a modified version of the Ferguson hitch called the Swedish Hitch.

In 1960, the company was bought by SAAB and renamed SAAB-ANA and changed into being a SAAB dealership. In 2013 ANA started selling BMW and Mini and they had since a few years also made police versions of BMW cars and motorcycles. Some production re-emerged when NEVS bought the bankruptcy estate and in 2016 NEVS announced that the brand name Saab would cease. Hedin bil bought Ana motorcentrum AB 2017 on July 2 and car sales and workshop services continued under the name Trollhättan AB and Hedin bil in Lysekil.

References 

Defunct motor vehicle manufacturers of Sweden
Saab
Swedish companies established in 1937
NeuroDimension. NeuroDimension, Inc. was a software company specializing in neural networks, adaptive systems, and genetic optimization and made software tools for developing and implementing these artificial intelligence technologies.  NeuroSolutions is a general-purpose neural network development environment and TradingSolutions is a tool for developing trading systems based on neural networks and genetic algorithms.

NeuroDimension was acquired by nDimensional, Inc. in 2016.

History

Formation and NeuroSolutions 
Prior to the acquisition of NeuroDimension (in 2016), it was a software development company headquartered in Gainesville, Florida and founded in 1991 by Steven Reid, MD, Jose Principe, PhD (Director of the Computational Neural Engineering Lab at the University of Florida) and Curt Lefebvre, PhD (CEO of nDimensional). Dr. Reid provided the initial capital to get the company off the ground. Dr. Principe provided the engineering staff with technical direction and had helped secure research grant funding for the company. Dr. Lefebvre was the principal author of the company’s core neural network technology.

The company was formed around a software tool, NeuroSolutions, which enables engineers and researchers to model their data using neural networks.

Financial Analysis and TradingSolutions 
In 1997, it became apparent that one of the most common uses of NeuroSolutions was to create neural network models to time the financial markets.

Released in 2008, Trader68 handles the trading and distribution of trading signals from TradingSolutions, proprietary research, and other sources.

In late 2015, Trader68 was discontinued and is no longer supported or actively developed.  TradingSolutions was discontinued in 2016.

nDimensional, Inc. Acquires NeuroDimension, Inc. 
In August 2016, nDimensional, Inc. announced the acquisition of NeuroDimension, Inc. to help accelerate its new web-based Platform-as-a-Service product called nD to market.

See also
Artificial Neural Network
Artificial Intelligence
Adaptive system
Embedded system
Genetic algorithm
Neural network software

Software companies based in Florida
Software companies established in 1991
1991 establishments in Florida
Defunct software companies of the United States
Software companies disestablished in 2016
2016 disestablishments in Florida
Solketal. Solketal is a protected form of glycerol with an isopropylidene acetal group joining two neighboring hydroxyl groups. Solketal contains a chiral center on the center carbon of the glycerol backbone, and so can be purchased as either the racemate or as one of the two enantiomers. Solketal has been used extensively in the synthesis of mono-, di- and triglycerides by ester bond formation. The free hydroxyl group of solketal can be esterified with a carboxylic acid to form the protected monoglyceride. The isopropylene group can then be removed using an acid catalyst in aqueous or alcoholic medium. The unprotected diol can then be esterified further to form either the di- or triglyceride.

Another route to specific di- or triglycerides involves converting the solketal to glycidol (2,3-epoxy-1-propanol) and esterifying this with one fatty acid before opening the epoxy by heating in the presence of a second fatty acid and a catalyst. This second fatty acid is put on the third carbon atom, and then a third fatty acid can be added to the second carbon atom.

References

  
 
 
 

Ketals
Primary alcohols
Magnesium diuranate. Magnesium diuranate (MgU2O7) is a compound of uranium. It is known in the uranium refining industry as "MDU" and forms the major part of some yellowcake mixtures. Yellowcakes are an intermediate product in the uranium refining process.

To produce this form of yellowcake, crushed ore is mixed with hot water to a 58% solids slurry. The solids slurry is then processed through a series of tanks, where sulfuric acid, sodium chlorate, and steam are used to extract the uranium from the solids slurry. The average leaching efficiency for this process is 98.5%. The uranium-bearing solution is then decanted and directed to a solvent extraction (SX) process for further purification. In this extraction step, the dissolved uranium is transferred from the feed solution into the organic solvent. Next a stripping step recovers the uranium into a sodium chloride aqueous phase after which the barren solvent is recycled. The average efficiency of the SX circuit is 99.9%. The high-grade “pregnant” strip solution from SX goes to the next stage where magnesia slurry is added to precipitate magnesium diuranate. The yellow cake precipitate is then thickened, dried, re-crushed and packed into industry standard 220 litre steel drums for shipment to customers.

As with all yellowcake process the selection of this end product is dependent on the properties of the ore to be processed.

References

Magnesium compounds
Uranates
Nuclear materials
Dell n Series. The n Series is a Dell product line that does not ship with a pre-installed version of Microsoft Windows. Apparently prohibited from shipping computers without an operating system by an existing licensing agreement with Microsoft, Dell instead ships these systems with either the open-source FreeDOS operating system or the Ubuntu Linux distribution not preinstalled, but on install disks.

The company has come under fire for making the FreeDOS and Linux-powered machines no cheaper and more difficult to purchase than identical systems running Windows. Despite its technological advances, it is often criticized more than the average computing device.

References

External links
Dell n Series Service in Delhi, india
Dell and Linux
Interview with Michael Dell on Desktop Linux

n Series
GAMESS (UK). General Atomic and Molecular Electronic Structure System (GAMESS-UK) is a computer software program for computational chemistry. The original code split in 1981 into GAMESS-UK and GAMESS (US) variants, which now differ significantly. Many of the early developments in the UK version arose from the earlier UK based ATMOL program, which, unlike GAMESS, lacked analytical gradients for geometry optimisation.

GAMESS-UK can perform many general computational chemistry calculations, including Hartree–Fock method, Møller–Plesset perturbation theory (MP2 & MP3), coupled cluster (CCSD & CCSD(T)), density functional theory (DFT), configuration interaction (CI), and other advanced electronic structure methods. Calculation of valence bond wave functions are possible by the TURTLE code, due to J. H. van Lenthe.

See also
 CP2K
 GAMESS (US)
 Gaussian (software)
 MOLCAS
 MOLPRO
 MPQC
 NWChem
 PSI (computational chemistry) (Psi3)
 Firefly (computer program)
 Q-Chem
 Quantum chemistry computer programs

References
  This is one of the most cited chemistry papers

External links 
 

Computational chemistry software
Science and Technology Facilities Council
Science and technology in Cheshire

pl:GAMESS
Andersonite. Andersonite, Na2Ca(UO2)(CO3)3·6H2O, or hydrated sodium calcium uranyl carbonate is a rare uranium carbonate mineral that was first described in 1948. Named after Charles Alfred Anderson (1902–1990) of the United States Geological Survey, who first described the mineral species, it is found in sandstone-hosted uranium deposits. It has a high vitreous to pearly luster and is fluorescent. Andersonite specimens will usually glow a bright lemon yellow (or green with blue hints depending on the deposit) in ultraviolet light.  It is commonly found as translucent small rhombohedral crystals that have angles close to 90 degrees although its crystal system is nominally trigonal. Its Mohs hardness is 2.5, with an average specific gravity of 2.8.

It occurs in the oxidized zone of uranium-bearing polymetallic ore deposits. It also may occur as an efflorescent crust on the walls and timbers of uranium mines.  As this mineral is water-soluble, samples must be stored in dry conditions. It occurs with schrockingerite, bayleyite, schwarzites, boltwoodite, liebigite and gypsum.

It was first described in 1948 for an occurrence in the Hillside Mine near Bagdad, Eureka District, Yavapai County, Arizona.

References

Uranium(VI) minerals
Carbonate minerals
Trigonal minerals
Minerals in space group 166
Minerals described in 1948
Wyartite. Wyartite ·7H2O is a uranium bearing mineral named after Jean Wyart (1902–1992), mineralogist at the Sorbonne, Paris. It has greenish-black, black, or violet-black, translucent to opaque orthorhombic crystals. It has a  hardness of 3 to 4 on the Mohs scale. Its other names are ianthinite (of Bignand), wyartit and wyartita. It belongs to the uranium carbonate group of minerals. It is found next to rutherfordine in Shinkolobwe, Shaba, Zaire.

Determination of the structure of wyartite provided the first evidence for a pentavalent uranium mineral. Like all uranium minerals it is radioactive.

References

Uranium minerals
Calcium minerals
Carbonate minerals
Orthorhombic minerals
Minerals in space group 19
Uranium(V) compounds
Uranyl compounds
Multi-frequency receiver. Multi-Frequency signalling, (MF), is similar to the European version, CCITT Signaling System 5, (SS5). The original format was five tones used in pairs. This later evolved to six tones. Because its six tones are used only in pairs, this signaling format is sometimes referred to as "two-out-of-five code" or "two of six."

Multi-Frequency receivers have been present in US telephony at least since the late 1940s. In 1940s technology, receivers in 4XB and similar equipment used vacuum tubes.  Later ones used RC filters and transistors.  Digital filters became commonplace in electronic switching systems of the 1980s.  For example, in 5ESS switch such jobs are done by DSPs in the Global Digital Services Unit (GDSU).

References
 The 5ESS Switching System (The AT&T Technical Journal, July–August 1985, Vol. 64, No. 6, Part 2)
Multi-Frequency Pulsing in Switching (AIEE Transactions, Volume 68, Part 1, 1949, pp. 392–396)
 Multi-Frequency Pulsing in Switching (Electrical Engineering, June 1949, pp. 505–510)

Telephony signals
Telephony equipment
Quad digital audio processor. The quad digital audio processor (QDAP) was a digital signal processor (DSP) based printed circuit card designed at Computer Consoles Inc. (CCI) in Rochester, NY. The QDAP was a service circuit module developed as part of the companies digital telephony switching system. The main function of the card was the processing of incoming digital audio to detect the speech patterns using speaker independent speech recognition. The CCI digital switch was deployed as part of the Digital Audio Intercept System (DAIS II), Automatic Voice Response (AVR), and Interactive Voice System (IVS) products. The initial QDAP board is notable for introducing speech recognition into the public telephone network to automate the handling of operator assisted telephone calls.

Variants
 QDAP-I:
 This printed circuit card, designed by Mark A. Indovina, was introduced in late 1987 and contained four TMS320C25 16-bit fixed point DSP chips operating at 40 MHz.

Features
 Each TMS320C25 DSP core processed four simultaneous digital audio channels.
 The card deployed speaker independent speech recognition for multiple languages
 The speaker independent speech recognition vocabulary database could be efficiently changed by downloading an update over the switch time-slot network at any time
 The speaker independent speech recognition vocabulary database could be created by the hosting telephone company as necessary based on the call scenario

References
 Advanced Speech Recognition (Nortel ASR Product Overview)
 Interactive Voice Response (Nortel IVR Product Overview)

Communication circuits
Telephony equipment
Bigloo. Bigloo is a programming language, an implementation of the language Scheme, a dialect of the language Lisp. It is developed at the French IT research institute French Institute for Research in Computer Science and Automation (INRIA). It is oriented toward providing tools for effective and diverse code generation that can match the performance of hand-written C or C++. The Bigloo system contains a Scheme compiler that can generate C code and Java virtual machine (JVM) or .NET Framework (.NET) bytecode. As with other Lisp dialects, it contains an interpreter, also termed a read-eval-print loop (REPL). It is free and open-source software. The run-time system and libraries are released under a GNU Lesser General Public License (LGPL). The compiler and programming tools are released under a GNU General Public License (GPL).

"Bigloo is a Scheme implementation devoted to one goal: enabling Scheme based programming style where C(++) is usually required."

The Hop web application engine and Roadsend PHP are written in Bigloo.

Libraries 
 Biglook – a cross-platform graphical user interface (GUI) module that interfaces with GTK+ and Java Swing

Bigloo-lib 
The Bigloo-lib project contains modules for:

 Regular Expressions
 MzScheme Compatibility
 iconv Character Set Conversion
 Extended Console Application support – This includes support for GNU Readline, and termios
 SQL – tested with MySQL, Oracle, PostgreSQL, and SQLite
 XML – an interface to the Expat XML parser
 GTK

See also
List of JVM languages

References

External links
 

Scheme (programming language) compilers
Scheme (programming language) interpreters
Scheme (programming language) implementations
CA1. CA1, CA-1, CA 1, or Ca.1  may refer to:

Aircraft and other vehicles 
 Buhl CA-1 Airster, an American sports airplane
 Caproni Ca.1 (1910), an experimental biplane of 1910
 Caproni Ca.1 (1914), a World War I bomber
 Schneider CA1, the first French tank

Biology 
 CA1 (gene), a human gene
 CA1, a hippocampal subfield

Law 
 United States Court of Appeals for the First Circuit

Places and roads 
 the road designation for the Central American Highway 1 (CA-1), the portion of the Pan-American Highway passing through the Central American countries
 California State Route 1

Politics 
 California's 1st congressional district